Skocz do pozycji: 1.

Tytuł:

Detecting visual objects by edge crawling

Autorzy:

Grycuk, Rafał
Wojciechowski, Adam
Wei, Wei
Siwocha, Agnieszka

Powiązania:

https://bibliotekanauki.pl/articles/1837538.pdf

Data publikacji:

2020

Wydawca:

Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych

Tematy:

content-based image retrieval
crawler
edge detection
image descriptor
object extraction

Opis:

Content-based image retrieval methods develop rapidly with a growing scale of image repositories. They are usually based on comparing and indexing some image features. We developed a new algorithm for finding objects in images by traversing their edges. Moreover, we describe the objects by histograms of local features and angles. We use such a description to retrieve similar images fast. We performed extensive experiments on three established image datasets proving the effectiveness of the proposed method.

Źródło:

Journal of Artificial Intelligence and Soft Computing Research; 2020, 10, 3; 223-237
2083-2567
2449-6499

Pojawia się w:

Journal of Artificial Intelligence and Soft Computing Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

The Development of Marxist Shakespearean Criticism in China

Autorzy:

Zhang, Wei

Powiązania:

https://bibliotekanauki.pl/articles/648242.pdf

Data publikacji:

2019

Wydawca:

Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego

Tematy:

China
Marxism
Shakespearean criticism

Opis:

Chinese Shakespearean criticism from Marxist perspectives is highly original in Chinese Shakespeare studies. Scholars such as Mao Dun, Yang Hui, Zhao Li, Fang Ping, Yang Zhouhan, Bian Zhilin, Meng Xianqiang, Sun Jiaxiu, Zhang Siyang and Wang Yuanhua adopt the basic principles and methods of Marxism to elaborate on Shakespeare’s works and have made great achievements. With ideas changed in different political climates, they have engaged in Shakespeare studies for over eight decades since the 1930s. At the beginning of the revolutionary age, they advocated revolutionary literature, followed Russian Shakespearean criticism from the Marxist perspective, and established the mode of class analysis and highlighted realism. Before and after the Cultural Revolution, they were concerned about class, reality and people. They also showed the “left-wing” inclination, taking literature as a tool to serve politics. Since the 1980s, they have been free from politics and entered the pure academic realm, analysing Shakespearean dramas with Marxist aesthetic theories and transforming from sociological criticism to literary criticism.

Źródło:

Multicultural Shakespeare: Translation, Appropriation and Performance; 2019, 20, 35; 99-113
2083-8530
2300-7605

Pojawia się w:

Multicultural Shakespeare: Translation, Appropriation and Performance

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Investigations of the Optical and EPR Spectra for $Cr^{3+}$ Ions in Diammonium Hexaaqua Magnesium Sulphate Single Crystal

Autorzy:

Wei, Q.

Powiązania:

https://bibliotekanauki.pl/articles/1535818.pdf

Data publikacji:

2010-10

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

76.30.Fc
71.70.Ch
71.55.Ht

Opis:

The relations between spin-Hamiltonian parameters and local structure around $Cr^{3+}$ in diammonium hexaaqua magnesium sulphate single crystal were established. On the basis of this, the spin-Hamiltonian parameters, optical spectra and the local structure were investigated successfully. The calculated results are in good agreement with experimental data. This shows that the distortion model adopted in this paper is reasonable.

Źródło:

Acta Physica Polonica A; 2010, 118, 4; 670-672
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Principles in the Grammatical Teaching of Chinese as a Foreign Language
Принципы преподавания грамматики китайского языка как иностранного

Autorzy:

Wei, Bi

Powiązania:

https://bibliotekanauki.pl/articles/1934155.pdf

Data publikacji:

2021-06-30

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

teaching Chinese as a foreign language (TCFL)
Chinese grammar teaching
teaching principles
преподавание китайского языка как иностранного
преподавание китайской грамматики
принципы преподавания

Opis:

As the pace of Chinese economy’s development continues to increase, the “Chinese fever” has already become a common phenomenon within the global language communication system. Teaching Chinese as a foreign language (TCFL), regardless of the method of choice (audiolingual method, direct method, or communicative approach), is impossible without grammar. Regarding TCFL, the goal of teaching grammar is to make foreign students understand the distinguishing features of Chinese grammar and help them master its rules to correctly use the language, develop communicative competence, and efficiently increase proficiency in Chinese. This paper incorporates some living examples and, by discussing the grammatical teaching of Chinese as a foreign language, should answer some questions connected to its principles.
Поскольку темп развития экономики Китая продолжает расти, «бум» на изучение китайского языка уже стал обычным явлением в глобальной системе языковой коммуникации. Преподавание китайского языка как иностранного, независимо от выбранного метода (аудиолингвистиче- ский метод, прямой метод или коммуникативный подход), невозможно без грамматики. Что касается преподавания китайского языка как ино- странного, цель обучения грамматике – научить иностранных студен- тов понимать отличительные особенности китайской грамматики и по- мочь им усвоить ее правила, чтобы они могли правильно использовать язык, развить коммуникативную компетенцию и эффективно повысить уровень владения китайским языком. Эта статья включает несколько живых примеров и, рассказывая о преподавании грамматики китайско- го языка как иностранного, должна ответить на некоторые вопросы, связанные с его принципами.

Źródło:

Studia Orientalne; 2021, 1(19); 104-117
2299-1999

Pojawia się w:

Studia Orientalne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

The Graphs Whose Permanental Polynomials Are Symmetric

Autorzy:

Li, Wei

Powiązania:

https://bibliotekanauki.pl/articles/31342428.pdf

Data publikacji:

2018-02-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

permanental polynomial
rooted product
matching

Opis:

The permanental polynomial $ \pi (G,x) = \Sigma_{i=0}^n b_i x^{n − i} $ of a graph G is symmetric if $ b_i = b_n−i $ for each $i$. In this paper, we characterize the graphs with symmetric permanental polynomials. Firstly, we introduce the rooted product $ H(K) $ of a graph $ H $ by a graph $ K $, and provide a way to compute the permanental polynomial of the rooted product $ H(K) $. Then we give a sufficient and necessary condition for the symmetric polynomial, and we prove that the permanental polynomial of a graph $ G $ is symmetric if and only if $ G $ is the rooted product of a graph by a path of length one.

Źródło:

Discussiones Mathematicae Graph Theory; 2018, 38, 1; 233-243
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Arc-Disjoint Hamiltonian Paths in Strong Round Decomposable Local Tournaments

Autorzy:

Meng, Wei

Powiązania:

https://bibliotekanauki.pl/articles/32083838.pdf

Data publikacji:

2021-02-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

local tournament
round-decomposable
arc-disjoint Hamiltonian paths

Opis:

Thomassen, [Edge-disjoint Hamiltonian paths and cycles in tournaments, J. Combin. Theory Ser. B 28 (1980) 142–163] proved that every strong tournament has a pair of arc-disjoint Hamiltonian paths with distinct initial vertices and distinct terminal vertices if and only if it is not an almost transitive tournament of odd order. As a subclass of local tournaments, Li et al. [Arc-disjoint Hamiltonian cycles in round decomposable local tournaments, Discuss. Math. Graph Theory 38 (2018) 477–490] confirmed the existence of such two paths in 2-strong round decomposable local tournaments. In this paper, we show that every strong, but not 2-strong, round decomposable local tournament contains a pair of arc-disjoint Hamiltonian paths with distinct initial vertices and distinct terminal vertices except for three classes of digraphs. Thus Thomassen's result is partly extended to round decomposable local tournaments. In addition, we also characterize strong round digraphs which contain a pair of arc-disjoint Hamiltonian paths with distinct initial vertices and distinct terminal vertices.

Źródło:

Discussiones Mathematicae Graph Theory; 2021, 41, 1; 297-310
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

The First Contacts between China and Poland in History
Первые в истории контакты Китая и Польши

Autorzy:

Wei, Bi

Powiązania:

https://bibliotekanauki.pl/articles/1930245.pdf

Data publikacji:

2020-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

western expeditions
Genghis Khan
Battle of Legnica
Bolonia
западные экспедиции
Чингисхан
Битва при Легнице
Болония

Opis:

Poland is one of the first countries to establish diplomatic relations with People’s Republic of China. Since the establishment of diplomatic ties 70 years ago, both countries have conducted close cooperation in all areas and the bilateral relations have witnessed steady development. In particular, the “One Belt, One Road” initiative, launched in 2013, got the positive responses and support from many countries, including Poland, which became an important partner for China to promote the construction of the initiative. This paper, from a historical perspective, reviews the first interaction between China and Poland in the period of Yuan Dynasty which is arranged in chronological order. The narrations mainly concentrate on accounts of the western expeditions by Genghis Khan and his descendants as well as the Battle of Legnica, during the period of which the Mongolia Empire was successively set up. Each entry will include a concrete description, highlighting where possible issues such as where the Mongolia went, why the expedition and its record are important. The paper also expounds the first record about Poland and the change of the name of Poland in Chinese literature so as to deepen the mutual understanding between two countries.
Польша - одна из первых стран, установивших дипломатические отношения с Новым Китаем. С момента установления дипломатических отношений 70 лет назад обе страны поддерживают тесное сотрудничество во всех областях и двусторонние отношения стабильно развиваются. В частности, инициатива «Один пояс, один путь», запущенная в 2013 году, получила положительные отклики и поддержку многих стран, включая Польшу, которая стала для Китая важным партнером в продвижении инициативы строительства. В этой статье с исторической точки зрения рассматривается первое взаимодействие Китая и Польши в период династии Юань, что представлено в хронологическом порядке. Повествование в основном сосредоточено на рассказах о западных экспедициях Чингисхана и его потомков, а также о битве при Легнице, в период которой последовательно создавалась Монгольская империя. Статья также рассказывает о первом упоминании о Польше и изменении названия Польши в китайской литературе.

Źródło:

Nowa Polityka Wschodnia; 2020, 4(27); 15-33
2084-3291

Pojawia się w:

Nowa Polityka Wschodnia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Investigations of the EPR and Optical Spectra for $VO^{2+}$ in $C_3H_7NO_2$ Powders

Autorzy:

Wei, Q.

Powiązania:

https://bibliotekanauki.pl/articles/1537793.pdf

Data publikacji:

2010-06

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

76.30.Fc
71.70.Ch
78.50.Ec
71.55.Ht

Opis:

The EPR and optical spectra for $VO^{2+}$ in $C_3 H_7 NO_2$ powders are calculated from complete diagonalization method and perturbation theory method, respectively. The calculated results are in good agreement with observed values. The negative signs of hyperfine structure constants $A_∥$ and $A_⊥$ for $VO^{2+}$ in $C_3 H_7 NO_2$ powders are also suggested from the calculations.

Źródło:

Acta Physica Polonica A; 2010, 117, 6; 962-964
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Issues in teaching Chinese characters and strategies for foreign learners outside the Chinese character culture circle

Autorzy:

Wei, Bi

Powiązania:

https://bibliotekanauki.pl/articles/955983.pdf

Data publikacji:

2017-06-28

Wydawca:

Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego

Opis:

Learning Chinese is far from an easy task and acquiring Chinese characters is probably the greatest challenge. Many foreign students outside the Chinese Character Culture Circle, beginners in particular, give up learning Chinese characters because of the ideographic system. This system embraces phonology, glyphs and semantic meaning, which are completely different from alphabetic writing. What makes things worse is that TCCF has been ignored for a long time in TCFL. TCFL started to develop in China in the early 1950s, and that involved teaching some simple characters including strokes, the order of strokes and structural analysis. There were no independent character textbooks for foreigners. The content concentrating on teaching characters did not play a leading role in materials for teaching Chinese. Furthermore, most teachers paid little attention to, or neglected character teaching and training, due to the lack of linguistic knowledge.

Źródło:

Gdańskie Studia Azji Wschodniej; 2017, 11; 98-111
2353-8724

Pojawia się w:

Gdańskie Studia Azji Wschodniej

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Bridge builders of one belt one road ‘Why, what and How’ of the AIIB and SRF

Autorzy:

Wei, He

Powiązania:

https://bibliotekanauki.pl/articles/531259.pdf

Data publikacji:

2018

Wydawca:

Fundacja Instytut Nauki o Polityce

Tematy:

B&R initiative
development finance
AIIB
SRF

Opis:

The history of AIIB and SRF is shorter than most of institutes, however so far the two institutes have earned their reputation through business development, and enhanced the confidence of world to B&R initiative. The key hypothesis of this paper is that the two institutes are not some kinds of economic weapons invented to destroy existing world order but new organizations to improve cooperation of countries. The AIIB and SRF are welcomed widely especially by the members in core region of B&R initiative for several reasons. First, they play indispensable role as the public financing institutes, separately being classed as MDB (multilateral development bank) and SWF (sovereign wealth funds) ,both are important for Sustainable development investments .Second , they may help to transfer experiences of China and other fast growing countries to undeveloped countries. The third and may be the most important point is, the two institutes may help more cooperation to be realized following B & R initiative. The missions and functions of the two institutes are fostering sustainable development, promoting regional cooperation, and decreasing the barrier of infrastructure financing. By provide debt financing and capital financing respectively, the two institutes may satisfy different customers with demands of the infrastructure financing in the region. With the transparency process/governance, the two institutes will act not only new pools of development financing in belt and road region, but also a promoter and organizer of development financing industry, which may bring more opportunities to the countries in the region, and improve both intergovernmental and non-GOV cooperation to boost infrastructure financing. The scale of the business of the two institutes has been increased apparently since founded, mainly attributed to regenerative feedback effect caused by multi-win strategy, and the unique position pegged with one belt one road initiative. One interesting thing for IR scholars is , the two new institutes, as long as China the initiator of B & R initiative, have been doubted by some countries while embraced by some others, for being labeled as challengers of the existing world order. This may remind scholars the metaphor of the trap of Thucydides: the trap did exist for those who thought the threat was there and tried to prevent it happened.

Źródło:

Polish Journal of Political Science; 2018, 4, 1; 7-28
2391-3991

Pojawia się w:

Polish Journal of Political Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

The Composite Nature of Interlanguage as a Developing System

Autorzy:

Wei, Longxing

Powiązania:

https://bibliotekanauki.pl/articles/620635.pdf

Data publikacji:

2009-01-01

Wydawca:

Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego

Tematy:

interlanguage
composite
abstract lexical structure
lemmas
bilingual mental lexicon
transfer

Opis:

This paper explores the nature of interlanguage (IL) as a developing system with a focus on the abstract lexical structure underlying IL construction. The developing system of IL is assumed to be ‘composite’ in that in second language acquisition (SLA) several linguistic systems are in contact, each of which may contribute different amounts to the developing system. The lexical structure is assumed to be ‘abstract’ in that the mental lexicon contains abstract elements called ‘lemmas’, which contain information about individual lexemes, and lemmas in the bilingual mental lexicon are language-specific and are in contact in IL production. Based on the research findings, it concludes that language transfer in IL production should be understood as lemma transfer of the learner's first language (L1) lexical structure at three abstract levels: lexical-conceptual structure, predicate-argument structure, and morphological realization patterns, and IL construction is driven by an incompletely acquired abstract lexical structure of a target language (TL) item.

Źródło:

Research in Language; 2009, 7; 5-30
1731-7533

Pojawia się w:

Research in Language

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Who and what should we educate our students to be?An inquiry into the cultivation of multiculturalism in education

Autorzy:

WEI, LIPING

Powiązania:

https://bibliotekanauki.pl/articles/628753.pdf

Data publikacji:

2012

Wydawca:

Fundacja Pro Scientia Publica

Tematy:

American education, immigrants, assimilation, multiculturalism

Opis:

A young Chinese immigrant’s aversion to his Chinese origin and his self-identifi cation as purely American gives much food for thought to the author: Whoand what American edu-cation has been aiming to educate its students to be and what is impeding multiculturalism from being cultivated in education. The article points out that American schools have long been serving to Americanize its immigrant population regardless of where they are originally from, ethnically, linguistically, culturally, and religiously, and in spite of the country’s long--standing and ever-growing diversity. Without challenging the structural inequality inherent in “assimilation”, true multiculturalism will not be realized in education.

Źródło:

Journal of Education Culture and Society; 2012, 3, 2; 74-77
2081-1640

Pojawia się w:

Journal of Education Culture and Society

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

A bio-inspired integration method for object semantic representation

Autorzy:

Wei, H.

Powiązania:

https://bibliotekanauki.pl/articles/91690.pdf

Data publikacji:

2016

Wydawca:

Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych

Tematy:

bio-inspired method
object representation
prototype

Opis:

We have two motivations. Firstly, semantic gap is a tough problem puzzling almost all sub-fields of Artificial Intelligence. We think semantic gap is the conflict between the abstractness of high-level symbolic definition and the details, diversities of low-level stimulus. Secondly, in object recognition, a pre-defined prototype of object is crucial and indispensable for bi-directional perception processing. On the one hand this prototype was learned from perceptional experience, and on the other hand it should be able to guide future downward processing. Human can do this very well, so physiological mechanism is simulated here. We utilize a mechanism of classical and non-classical receptive field (nCRF) to design a hierarchical model and form a multi-layer prototype of an object. This also is a realistic definition of concept, and a representation of denoting semantic. We regard this model as the most fundamental infrastructure that can ground semantics. Here a AND-OR tree is constructed to record prototypes of a concept, in which either raw data at low-level or symbol at high-level is feasible, and explicit production rules are also available. For the sake of pixel processing, knowledge should be represented in a data form; for the sake of scene reasoning, knowledge should be represented in a symbolic form. The physiological mechanism happens to be the bridge that can join them together seamlessly. This provides a possibility for finding a solution to semantic gap problem, and prevents discontinuity in low-order structures.

Źródło:

Journal of Artificial Intelligence and Soft Computing Research; 2016, 6, 3; 137-154
2083-2567
2449-6499

Pojawia się w:

Journal of Artificial Intelligence and Soft Computing Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Switching controller synthesis for discrete-time switched linear systems with average dwell time

Autorzy:

He, Wei
Xie, Wei
Zhang, Langwen

Powiązania:

https://bibliotekanauki.pl/articles/229372.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

discrete-time switched linear systems
L2 performance
average dwell time
controller state reset
linear matrix inequalities

Opis:

This paper addresses weighted L₂ gain performance switching controller design of discrete-time switched linear systems with average dwell time (ADT) scheme. Two kinds of methods, so called linearizing change-of-variables based method and controller variable elimination method, are considered for the output-feedback control with a supervisor enforcing a reset rule at each switching instant are considered respectively. Furthermore, some comparison between these two methods are also given.

Źródło:

Archives of Control Sciences; 2020, 30, 1; 5-22
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Entrepreneurial Orientation (EO) and Performance of Government-Linked Companies (GLCs)

Autorzy:

Koe, Wei-Loon

Powiązania:

https://bibliotekanauki.pl/articles/475177.pdf

Data publikacji:

2013

Wydawca:

Fundacja Upowszechniająca Wiedzę i Naukę Cognitione

Tematy:

entrepreneurial orientation (EO)
firms
governmental-linked companies (GLCs)
performance

Opis:

Quite often, people have negative views on government-linked companies (GLCs) due to the unsatisfactory performance of some key players. In order to improve the performance of GLCs in the country, Malaysian government implemented GLC Transformation Program (GLCT) in 2004. As the program is approaching its ending phase, some efforts are needed to assess the performance of GLCs. This study aimed to examine the influence of EO dimensions on the performance of GLCs. The sample of this study consisted of 153 subsidiaries and branches of G20. Based on the multiple regression analysis performed, this study found that all the five dimensions in EO, namely innovativeness (INNO), pro-activeness (PROA), risk-taking (RISK), competitive aggressiveness (COMP) and autonomy (AUTO) recorded significant positive effects on performance of GLCs. Competitive aggressiveness was identified as the most important factor that influences the performance of GLCs. As such, all the hypotheses developed for this study were supported. The results suggested that EO is not only suitable to be applied in privately owned companies, but also in GLCs. Hence, GLCs should not be perceived as public entities and they should be more entrepreneurial in managing their organizations to achieve high performance. Furthermore, this study also verified that EO is a good determinant of GLCs’ performance. At the end of this paper, recommendations for future research have been put forth.

Źródło:

Journal of Entrepreneurship, Management and Innovation; 2013, 9, 3; 21-41
2299-7075
2299-7326

Pojawia się w:

Journal of Entrepreneurship, Management and Innovation

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

Problem secesji Tajwanu w debacie politycznej na Szczycie Xi-Ma. Implikacje dla stosunków w Cieśninie Tajwańskiej

Autorzy:

Wei, Chunjuan Nancy

Powiązania:

https://bibliotekanauki.pl/articles/624562.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej

Tematy:

Taiwan’s Secessionist Movement against Two Hosts
Xi-Ma Summit
Unstable Peace
Cross-Strait Security
Lund’s Curve
Taiwan’s 2016 Election
spotkanie Xi-Ma, niestabilny pokój, stosunki w Cieśninie Tajwańskiej, wybory prezydenckie na Tajwanie 2016

Opis:

Taiwan commands the world’s attention because of the geopolitics that enables the island to play a role bigger than its size. Democracy and secessionist movements that came hand in hand since the 1980s in Taiwan have further complicated matters, leading to a level of chaos and decline of competitiveness in Taiwan’s once-vibrant economy. Cross-Strait relations have greatly improved but the situation remains an “unstable peace,” to use the terminology of the Lund Curve, because of the existence of an independence-leaning coalition and its constituents.Although considerable trade and tourism have linked the two sides and direct negotiations have produced 23 agreements, political and security ties remain sensitive. China’s chief goal remains national reunification, while the majority of Taiwanese voters tend to favor the status quo. This paper discusses a unique two-host phenomenon in Taiwan’s secessionist movement, nonexistent in other similar movements. It traces President Ma Ying-jeou’s approach to cross-Strait relations, explaining reasons that led to Ma’s unprecedented summit with his counterpart Xi Jinping. Without understanding the concept of the two hosts, it would be impossible to make sense of the extraordinary reconciliation, epitomized in the Xi-Ma handshake.
Tajwan przyciąga uwagę całego świata ze względu na znaczenie geopolityczne wyspy w regionie Azji i Pacyfiku. Demokratyzacji Tajwanu towarzyszą ruchy secesyjne, co stwarza dodatkowe komplikacje. Prowadzi to wzrostu zagrożeń w różnych obszarach, politycznym, militarnym, ekonomicznym. Pomimo, że stosunki w Cieśnienie Tajwańskiej można obecnie określić jako względnie spokojne, sytuacja nadal nosi znamiona „niestabilnego pokoju””, używając terminologii zaproponowanej przez Lund Curve. W sytuacji gdy nadrzędnym celem Chin pozostaje zjednoczenie narodowe, większość tajwańskich wyborców faworyzują zachowanie status quo. Tym bardziej na uwagę zasługuje analiza bezprecedensowego spotkania prezydenta Ma Ying-jeou (Tajwan) z Xi Jinping (Chiny), które miało miejsce w listopadzie 2015 roku. Było to pierwsze spotkania tej rangi urzędników od zakończenia wojny domowej czyli od 1949 r.

Źródło:

Teka Komisji Politologii i Stosunków Międzynarodowych; 2016, 11, 1
1896-8279

Pojawia się w:

Teka Komisji Politologii i Stosunków Międzynarodowych

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

The Functions and Problems of China’s State-Owned Economy

Autorzy:

Jia, Wei-xiao

Powiązania:

https://bibliotekanauki.pl/articles/2015652.pdf

Data publikacji:

2020-09-30

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

state-owned economic reform
materialism
productivity

Opis:

At the national symposium on the reform of state-owned enterprises, General Secretary Xi Jinping gave important instructions that state-owned enterprises are important forces in strengthening the country’s overall strength and safeguarding the common interests of the people. Therefore, the country must make state-owned enterprises „stronger, better, and bigger”. Huge objections arose in the academic field. This article thoroughly analyzes China’s state-owned economy from the perspective of Marx’s historical materialism, national productivity, and social development, and clarifies the historical status and role of China’s state-owned economy. At the same time, this article comprehensively analyzes the economic significance of making state-owned enterprises „stronger, better, and bigger” from the perspective of total factor productivity, and proposes that since the state-owned economy is backed up by the state, investing in technology research and development has its advantages. However, because the state-owned economy is biased toward administrative instructions, it often lacks efficiency, so if the state-owned economy wants to become „stronger, better, and bigger”, it must undergo reforms in terms of management efficiency.

Źródło:

Polish Political Science Yearbook; 2020, 3 (49); 9-29
0208-7375

Pojawia się w:

Polish Political Science Yearbook

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Dynamic Interactions Between Health, Human Capital and Wealth

Autorzy:

Zhang, Wei-Bin

Powiązania:

https://bibliotekanauki.pl/articles/1037392.pdf

Data publikacji:

2018

Wydawca:

Academicus. International Scientific Journal publishing house

Tematy:

health
human capital
wealth accumulation
economic structure

Opis:

This paper proposes a dynamic economic model with health, human capital and wealth accumulation with elastic labor supply. The economic system consists of one industrial, one health, and one education sector. Our model is a synthesis of four main models in economic theory: Solow’s one-sector neoclassical growth mode, the Uzawa-Lucas two sector model, Arrow’s learning by doing model, and Grossman’s growth model with health. The model also includes Zhang’s idea about creative leisure or learning by consuming. Demand and supply of health service and education are determined by market mechanism. The model describes dynamic interdependence among wealth, health, human capital, economic structure, and time distribution among work, health caring, and education under perfect competition. We simulate the model and examine effects of changes in the propensity to consume health caring, the efficiency of producing health caring, the propensity to receive education, and the propensity to save.

Źródło:

Academicus International Scientific Journal; 2018, 17; 122-145
2079-3715
2309-1088

Pojawia się w:

Academicus International Scientific Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

Cournot-Nash Family Decision and Economic Growth in an Extended Solowian Model

Autorzy:

Zhang, Wei-Bin

Powiązania:

https://bibliotekanauki.pl/articles/1038074.pdf

Data publikacji:

2020

Wydawca:

Academicus. International Scientific Journal publishing house

Tematy:

family decision
Cournot game
Solow model

Opis:

The purpose of this paper is to study economic growth with family-based microeconomic foundation. It develops a neoclassical growth model of endogenous wealth accumulation and consumption of two-person families. Growth mechanism and economic structures are based on a generalized Solowian growth model with Zhang’s concept of disposable income and utility. Each spouse maximizes his/her utility function which is dependent on his/her egocentric utility function and the spouse’s egocentric utility function. One’s egocentric utility function is related to one’s private consumption of goods, consumption of family goods, and saving made out of one’s own disposable income. The couple’s decisions are interdependent and are modelled as a Cournot-Nash game. Our model endogenously determines intra-household wealth accumulation and resource allocation on consumption and saving. The paper make an integration of some basic ideas in neoclassical growth theory and family economics. We conduct comparative dynamic analyses to show how the movement of the economy is affected by different exogenous changes in gender relations, preferences, and technologies.

Źródło:

Academicus International Scientific Journal; 2020, 21; 101-114
2079-3715
2309-1088

Pojawia się w:

Academicus International Scientific Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

PISA Science Score: A Good Indicator of Competence in S & T?

Autorzy:

Shi, Wei-Zhao

Powiązania:

https://bibliotekanauki.pl/articles/26469703.pdf

Data publikacji:

2013-03-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

PISA
science education
indicator
competence in science and technology

Opis:

In this study, the data from the Programme for International Student Assessment (PISA) are used to investigate whether the PISA science test score is a good indicator of competence in science and technology. The researcher uses a number of scientific and technical journal articles per million people as a measure instrument to represent the competence of science and technology. A regression model analysis suggests that the PISA science scores would significantly predict competence in S & T, even when controlling the number of researchers in R&D per million people and the R&D expenditure (% of GDP). Moreover, it shows that R&D expenditure (% of GDP) is another important determinant of the competence in S & T. Multicollinearity is also found between the R&D expenditure (% of GDP) and the number of researchers in R&D per million people. The policy implication is clear.

Źródło:

The New Educational Review; 2013, 31; 51-59
1732-6729

Pojawia się w:

The New Educational Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Finite coverings of groups

Autorzy:

Sun, Zhi-Wei

Powiązania:

https://bibliotekanauki.pl/articles/1215494.pdf

Data publikacji:

1990

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Źródło:

Fundamenta Mathematicae; 1990, 134, 1; 37-53
0016-2736

Pojawia się w:

Fundamenta Mathematicae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

Fibonacci numbers and Fermats last theorem

Autorzy:

Sun, Zhi-Wei

Powiązania:

https://bibliotekanauki.pl/articles/1391981.pdf

Data publikacji:

1992

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Opis:

Let {Fₙ} be the Fibonacci sequence defined by F₀=0, F₁=1, $F_{n+1}=Fₙ+F_{n-1} (n≥1)$. It is well known that $F_{p-(5//p)}≡ 0 (mod p)$ for any odd prime p, where (-) denotes the Legendre symbol. In 1960 D. D. Wall [13] asked whether $p²|F_{p-(5//p)}$ is always impossible; up to now this is still open.
In this paper the sum $∑_{k≡ r (mod 10)}{n\choose k}$ is expressed in terms of Fibonacci numbers. As applications we obtain a new formula for the Fibonacci quotient $F_{p-(5/p)}/p$ and a criterion for the relation $p|F_{(p-1)//4}$ (if p ≡ 1 (mod 4), where p ≠ 5 is an odd prime. We also prove that the affirmative answer to Wall's question implies the first case of FLT (Fermat's last theorem); from this it follows that the first case of FLT holds for those exponents which are (odd) Fibonacci primes or Lucas primes.

Źródło:

Acta Arithmetica; 1991-1992, 60, 4; 371-388
0065-1036

Pojawia się w:

Acta Arithmetica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Optimal edge ranking of complete bipartite graphs in polynomial time

Autorzy:

Hung, Ruo-Wei

Powiązania:

https://bibliotekanauki.pl/articles/743901.pdf

Data publikacji:

2006

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

graph algorithms
edge ranking
vertex ranking
edge-separator tree
complete bipartite graphs

Opis:

An edge ranking of a graph is a labeling of edges using positive integers such that all paths connecting two edges with the same label visit an intermediate edge with a higher label. An edge ranking of a graph is optimal if the number of labels used is minimum among all edge rankings. As the problem of finding optimal edge rankings for general graphs is NP-hard [12], it is interesting to concentrate on special classes of graphs and find optimal edge rankings for them efficiently. Apart from trees and complete graphs, little has been known about special classes of graphs for which the problem can be solved in polynomial time. In this paper, we present a polynomial-time algorithm to find an optimal edge ranking for a complete bipartite graph by using the dynamic programming strategy.

Źródło:

Discussiones Mathematicae Graph Theory; 2006, 26, 1; 149-159
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

Oscillations in a Growth Model with Capital, Technology and Environment with Exogenous Shocks

Autorzy:

Zhang, Wei-Bin

Powiązania:

https://bibliotekanauki.pl/articles/1036569.pdf

Data publikacji:

2015

Wydawca:

Academicus. International Scientific Journal publishing house

Tematy:

perturbations
economic oscillations
economic growth
technological change
wealth accumulation

Opis:

This paper generalizes the dynamic growth model with wealth accumulation, technological change and environmental change by Zhang (2012) by making all the parameters as time-dependent parameters. The model treats physical capital accumulation, knowledge creation and utilization, and environmental change as endogenous variables. It synthesizes the basic ideas of the neoclassical growth theory, Arrow’s learning-by-doing model and the traditional dynamic models of environmental change within a comprehensive framework. The behavior of the household is described with an alternative approach to household behavior. We simulated the model to demonstrate existence of equilibrium points, motion of the dynamic system, and oscillations due to different exogenous shocks.

Źródło:

Academicus International Scientific Journal; 2015, 12; 73-93
2079-3715
2309-1088

Pojawia się w:

Academicus International Scientific Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

How Do the Richest 1% Owns 50% of Wealth in a Small-Open Growth Model with Endogenous Wealth and Human Capital

Autorzy:

Zhang, Wei-Bin

Powiązania:

https://bibliotekanauki.pl/articles/1036776.pdf

Data publikacji:

2017

Wydawca:

Academicus. International Scientific Journal publishing house

Tematy:

inequality and growth
small-open economy
learning by consuming
wealth and income distribution
heterogeneous households

Opis:

This paper extends the growth model for a closed national economy by Zhang (2015) to a small-open economy. We attempt to explain some economic mechanisms of how the richest one per cent of the population own 50% of national wealth. We consider endogenous wealth and human capital accumulation by heterogeneous households with different preferences and learning abilities as the main determinants of growth and inequality. We describe the production technologies and economic structure on the basis of the Uzawa two-sector model. By applying Zhang’s concept of disposable income and approach to household behavior, we describe consumers’ wealth accumulation and consumption behavior. We model human capital accumulation on the basis of Arrow’s learning by doing and Zhang’s creativity with leisure. We simulate the model with three groups of the population, the rich 1 %, the middle 69%, and the poor 20%. We demonstrate the existence of an equilibrium point at which the rich 1% own more than half of the national wealth and the poor 20% less than 10% of the national wealth. We show how the system moves to the equilibrium from an initial state and confirm that the equilibrium point is stable. We also conduct comparative dynamic analysis.

Źródło:

Academicus International Scientific Journal; 2017, 15; 58-79
2079-3715
2309-1088

Pojawia się w:

Academicus International Scientific Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Spin-Spin and Spin-Other-Orbit Interactions of Spin-Hamiltonian Parameters for $3d^{2(8)}$ Ions in $Al_2O_3$ Crystals

Autorzy:

Wei, Q.
Guo, L.
Yang, Z.
Wei, B.

Powiązania:

https://bibliotekanauki.pl/articles/1505102.pdf

Data publikacji:

2011-06

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

76.30.Fc
71.70.Ch
75.10.Dg
71.55.Ht

Opis:

By considering weaker magnetic interactions (including spin-spin and spin-other-orbit interactions) in Hamiltonian, the spin-Hamiltonian parameters, including the zero-field splitting parameter D and g factors $(g_∥, g_⊥)$ for $3d^{2(8)}$ ions in $Al_2O_3$ crystals have been investigated. The results show that the contributions to D, $g_∥$ and $g_⊥$ from the spin-orbit interaction are dominant. The contributions from weaker magnetic interactions to D decrease (increase) with increasing charge of impurity ions for $3d^2 (3d^8)$ ions.

Źródło:

Acta Physica Polonica A; 2011, 119, 6; 857-859
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 27.

Tytuł:

Życie kardynała Tomasza Tian Gengxina (1890-1967) na tle burzliwego okresu w historii Chin
The Life of Cardinal Thomas Tian Gengxin (1890-1967) against the Background of a Turbulent Period in Chinese History

Autorzy:

Wesołowski, Zbigniew
Siqi, Wei

Powiązania:

https://bibliotekanauki.pl/articles/480534.pdf

Data publikacji:

2018-06-30

Wydawca:

Wydawnictwo Księży Werbistów Verbinum

Tematy:

kardynał Tomasz Tian Gengxin
chrześcijaństwo w Chinach i na Tajwanie
Sobór Watykański II
inkulturacja
Uniwersytet Fu Jen
Cardinal Thomas Tian Gengxin
Christianity in China and Taiwan
Second Vatican Council
inculturation
Fu Yen University

Opis:

W niniejszym artykule ukazano postać Tomasza Tian Gengxina, pierwszego „kolorowego” i chińskiego kardynała w dziejach Kościoła katolickiego. Nie chodziło tu jedynie o szkic biograficzny, lecz o ukazanie życia kard. Tian na tle skomplikowanego okresu przełomu XIX i XX wieku w dziejach Chin oraz Tajwanu. To historia Chin tamtego czasu zaważyła na życiu kard. Tian, a nawet przyczyniła się do jego osobistej tragedii – niemożności powrotu do Chin kontynentalnych. Naciski wielu osób, które opowiadały się za powrotem kard. Tian do Pekinu (m.in. abp Antonio Riberi, ks. Domenico Tardini – z ramienia Sekretariatu Stanu Stolicy Apostolskiej) bądź jego pozostaniem na emigracji (abp Yu Bin, Czang Kaj-szek), z pewnością pogłębiały osobisty dramat kardynała. Sytuacja, w jakiej znalazł się kard. Tian, była złożona, a nawet tragiczna. Każdy jego decyzja – czy to pozostanie na miejscu, czy powrót do Pekinu – wydawała się fatalna. Hierarcha miał tego świadomość, którą wyraził w liście z 11 lipca 1954 roku do Chu Cheng-ying. Mimo to nie należy zbyt pochopnie oceniać jego postępowania.
This article presents the figure of Thomas Tian Gengxin, the first “colored” and Chinese cardinal in the history of the Catholic Church. It is not just a biographical sketch, but it shows the life of Cardinal Tian against the background of complicated period of the turn of the 19th and 20th centuries in the history of China and Taiwan. It is the history of China of that time that influenced the life of Cardinal Tian and even contributed to his personal tragedy – the impossibility of returning to mainland China. The pressure of many people who were in favor of the return of Cardinal Tian to Beijing (including Abp. Antonio Riberi, Fr. Domenico Tardini – on behalf of the Secretariat of the State of the Holy See) or his remaining in exile (Abp. Yu Bin, Chiang Kai-shek), certainly deepened the personal drama of the Cardinal. The situation, in which Cardinal Tian found himself was complex and even tragic. Every decision he made – whether he would remain on the spot or return to Beijing – seemed fatal. The hierarch was aware of that and he expressed it in the letter of July 11, 1954 to Chu Cheng-ying. Still, we should not judge his behavior too hastily.

Źródło:

Nurt SVD; 2018, 1; 188-208
1233-9717

Pojawia się w:

Nurt SVD

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 28.

Tytuł:

Actinide ion exchange technology in the back end of the nuclear fuel cycle

Autorzy:

Navratil, J.
Wei, Y.

Powiązania:

https://bibliotekanauki.pl/articles/147559.pdf

Data publikacji:

2001

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

actinide separation and purification
adsorption and elution
ion-exchange resin
separation

Opis:

Ion exchange is used extensively in nuclear power technology, especially for uranium ore processing, removal of contaminants from power reactor waters and in the back end of the nuclear fuel cycle. In nuclear fuel reprocessing plants, ion exchange is used for the purification of actinide elements for further use, for the solidification of low- and medium-active waste solutions, and for the partitioning of high-level wastes. This paper reviews selected technological uses of ion exchange in these operations for recovery, separation and purification of selected actinides (Pu, U, Np, etc.). Recent research and development on ion exchange technologies for actinides are also summarized.

Źródło:

Nukleonika; 2001, 46, 2; 75-80
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

Dry ports-seaports sustainable logistics network optimization: considering the environment constraints and the concession cooperation relationships

Autorzy:

Wei, H.
Sheng, Z

Powiązania:

https://bibliotekanauki.pl/articles/259387.pdf

Data publikacji:

2017

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

dry port
port logistics
logistics network
location-allocation
sustainable
relationships evaluation

Opis:

In China dry ports enter into a rapid development period now, however for many Chinese dry ports, the operation faces difficulties duo to inefficient logistics networks and cooperation relationship between dry ports and seaports. Focusing on the concession cooperation mechanism of seaports and dry ports, and the environmental constraints (carbon emissions and congestion cost), a bi-objective location-allocation MILP model for the sustainable hinterland-dry ports-seaports logistics network optimization is formulated, aiming at the system logistics costs and carbon emissions to be minimized. Moreover, for the cooperation mechanism of seaports to dry ports, a parameter called cooperation cost concession coefficient is proposed for the optimization model, and a new evaluation method based on the ordered weighted averaging (OWA) operator is used to evaluate it. Then a location-allocation decision-making framework for the hinterland-dry port-seaport logistics network is proposed. The innovative aspect of the model is that it can proposes a effective and environment friendly dry ports location strategic and also give insights into the connective cooperation relationships, and cargo flows of the network. A case study involving configuration of dry ports in Henan Province is conducted, and the model is successfully applied.

Źródło:

Polish Maritime Research; 2017, S 3; 143-151
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

On global solutions to a nonlinear Alfvén wave equation

Autorzy:

Feng, XS.
Wei, F.

Powiązania:

https://bibliotekanauki.pl/articles/1311427.pdf

Data publikacji:

1995

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Tematy:

nonlinear Alfvén wave
existence and uniqueness of global solution
spatial asymptotic behavior

Opis:

We establish the global existence and uniqueness of smooth solutions to a nonlinear Alfvén wave equation arising in a finite-beta plasma. In addition, the spatial asymptotic behavior of the solution is discussed.

Źródło:

Annales Polonici Mathematici; 1995, 62, 2; 155-172
0066-2216

Pojawia się w:

Annales Polonici Mathematici

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

Full-Vectorial Description of the Light Guidance in Anisotropic Photonic Liquid Crystal Fibers

Autorzy:

Rutkowska, K.
Wei, L.

Powiązania:

https://bibliotekanauki.pl/articles/1418035.pdf

Data publikacji:

2012-11

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

02.60.Cb
02.70.Bf
42.25.Bs
42.70.Qs
42.81.Wg
42.70.Df

Opis:

In this paper we present our theoretical approach for the description of the light guidance in photonic liquid crystal fibers. In particular, we focus on the numerical methods allowing for a full implementation of the liquid crystals properties (i.e., including their optical anisotropy and molecular orientation), with a final target in characterizing photonic liquid crystal fibers with accessible computational effort. For this purpose suitable analytical formulae required for a full-vectorial description of the optical modes in photonic liquid crystal fibers have been derived. In addition, computational schemes allowing for numerical implementation of theoretical formulations (with the use of the finite-difference scheme) have been developed, validated and optimized. Their numerical convergence has been checked for different structures, as well as for different input parameters (e.g., grid-size). Obtained results have been compared to those analytically calculated, known from literature and/or got with use of commercial software. Moreover, the implemented schemes have been examined in accordance with experimental tests performed on the photonic liquid crystal fiber of interest.

Źródło:

Acta Physica Polonica A; 2012, 122, 5; 880-890
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

Choice Behavior for Intelligent Vehicle:Factors and Relationships
Uwarunkowania wyboru inteligentnego pojazdu:czynniki i powiązania

Autorzy:

Cao, Yuhong
Hu, Wei

Powiązania:

https://bibliotekanauki.pl/articles/370965.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Komitet Człowiek i Środowisko PAN

Tematy:

intelligent vehicle
choice behavior
SEM
factors analysis
inteligentny pojazd
zachowanie zarządzające wyborem
analiza czynników

Opis:

Intelligent vehicle considered to be the trend of future vehicle for its ecological environment protect and energy conservative feature. The high cost and imperfect technology of it result however in the disinclination of consumers and developers. In this paper, we studied the factor relationships of intelligent vehicle choice behavior between intelligent vehicle manufacturing enterprises, consumers and intelligent vehicle products by constructing Structural Equation Modeling (SEM). The empirical results shows that, Government should help to improve the performance of intelligent vehicle, and they should strengthen consumers’ cognition of intelligent vehicle and encourage them to purchase, which will stimulate vehicle manufacturing enterprises’ enthusiasm for developing.
Inteligentne pojazdy uważane są za przyszłość motoryzacji z uwagi na ochronę środowiska i oszczędność energii. Wysoki koszt i wciąż niedoskonała technologia powodują jednak niechęć ze strony konsumentów i deweloperów. W niniejszym artykule przeanalizowaliśmy czynniki dotyczące wyboru inteligentnego pojazdu między ich producentami, konsumentami i produktami, wykorzystując modelowanie równań strukturalnych (SEM). Wyniki empiryczne pokazują, że rząd powinien przyczynić się do poprawy wydajności inteligentnego pojazdu, a także powinien upowszechnić u konsumentów informacje odnoszące się do inteligentnego pojazdu i zachęcić do jego zakupu, co przyczyni się do znaczącego rozwoju przedsiębiorstw produkujących takie maszyny.

Źródło:

Problemy Ekorozwoju; 2018, 13, 2; 165-176
1895-6912

Pojawia się w:

Problemy Ekorozwoju

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Environmental Regulation and Employment: Evaluating the Role of Water Pollution Prevention and Control Law in China
Prawo ochrony środowiska a zatrudnienie: ocena Ustawy o zapobieganiu zanieczyszczeniu i kontroli jakości wód w Chinach

Autorzy:

Yu, Wei
Liu, Xiao

Powiązania:

https://bibliotekanauki.pl/articles/371034.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Komitet Człowiek i Środowisko PAN

Tematy:

environmental regulations
differences-in-differences
employment
Water Pollution Prevention and Control Law (WPPCL)
prawo ochrony środowiska
DID
zatrudnienie
Ustawa o zapobieganiu zanieczyszczeniom wody i kontroli jakości wód

Opis:

In this paper, we investigate the impact of environmental regulations on employment in China. We apply a quasi-natural experiment on the revision of Water Pollution Prevention and Control Law in 2008 (WPPCL2008), and we analyze manufacturing sectors’ reaction to WPPCL2008 by using a differences-in-differences approach based on China’s thirty five sectors at the 2-digit level from 2003 to 2014. Our results show that although environmental regulations can reduce waste-water emissions, at the same time cause a decrease in employment. The results suggest that stringent environmental regulation is not cost free. Furthermore, this finding contradicts the popular view that the effect of Chinese legislation enforcement is insignificant.
W tym artykule analizujemy wpływ środowiskowych regulacji prawnych na zatrudnienie w Chinach. Przygotowaliśmy eksperyment odnoszący się do poprawionej Ustawy o zapobieganiu zanieczyszczeniom wody i kontroli jakości wód z 2008 r. (WPPCL2008) i przeanalizowaliśmy reakcję na zmienione prawo ze strony sektora produkcyjnego korzystając z metody DID (differences-in-differences), uwzględniając 35 sektorów występujących w Chinach i 2-cyfowy poziom pomiędzy 2003 a 2014 r. Otrzymane rezultaty pokazują, że surowe regulacje środowiskowej nie są wolne od kosztów. Co więcej, okazuje się, że są one sprzeczne z poglądem, że chińskie prawodawstwo jest nieistotne.

Źródło:

Problemy Ekorozwoju; 2018, 13, 2; 7-16
1895-6912

Pojawia się w:

Problemy Ekorozwoju

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Synchronization analysis of inertial memristive neural networks with time-varying delays

Autorzy:

Wei, R.
Cao, J.

Powiązania:

https://bibliotekanauki.pl/articles/91767.pdf

Data publikacji:

2018

Wydawca:

Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych

Tematy:

inertial
memristive
neural network
synchronization

Opis:

This paper investigates the global exponential synchronization and quasi-synchronization of inertial memristive neural networks with time-varying delays. By using a variable transmission, the original second-order system can be transformed into first-order differential system. Then, two types of drive-response systems of inertial memristive neural networks are studied, one is the system with parameter mismatch, the other is the system with matched parameters. By constructing Lyapunov functional and designing feedback controllers, several sufficient conditions are derived respectively for the synchronization of these two types of drive-response systems. Finally, corresponding simulation results are given to show the effectiveness of the proposed method derived in this paper.

Źródło:

Journal of Artificial Intelligence and Soft Computing Research; 2018, 8, 4; 269-282
2083-2567
2449-6499

Pojawia się w:

Journal of Artificial Intelligence and Soft Computing Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

Research on the output characteristics of photovoltaic arrays under partial shading conditions based on peak point approximate calculation method

Autorzy:

Wei, Liming
Li, Kaikai

Powiązania:

https://bibliotekanauki.pl/articles/2086691.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

– characteristic equation
peak point approximate calculation method
peak voltage point
shadow occlusion’s rate
type of illumination distribution

Opis:

The mismatch effect of photovoltaic (PV) arrays due to different illumination intensity has a significant impact on the output characteristics and output power of PV arrays, which is crucial to understand the output characteristics of PV arrays and optimize the array configuration in order to improve the value of the maximum power point. This paper illustrates the short-circuit current mismatch of series circuits, and the open-circuit voltage mismatch of parallel circuits and proposes corresponding solutions for each mismatch phenomenon. The output characteristics of multi-stage series PV arrays and multi-stage parallel PV arrays under complex illumination are analyzed by using the peak point approximation calculation method, and the distribution law of peak voltage points as well as the I-V (Current-Voltage) characteristic equation of each operating section are proposed. On this basis, the output characteristics of 3 x 3 centralized PV arrays are analyzed and verified by simulation. By comparing series and parallel PV arrays with the same condition, as well as several groups of centralized PV arrays with the same topology and different types of illumination distribution, this paper proposes a configuration optimization method for PV arrays. Matlab/Simulink simulation results confirm that the output power of parallel arrays is greater than that of series arrays under the same configuration and illuminationt distribution type, and the peak point is less than that of series arrays under the same configuration and lighting conditions; while in centralized PV arrays, the fewer series modules are shaded, the greater the output power and the less the peak point.

Źródło:

Archives of Electrical Engineering; 2022, 71, 2; 409--424
1427-4221
2300-2506

Pojawia się w:

Archives of Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

On the n-Partite Tournaments with Exactly n − m + 1 Cycles of Length m

Autorzy:

Guo, Qiaoping
Meng, Wei

Powiązania:

https://bibliotekanauki.pl/articles/32083764.pdf

Data publikacji:

2021-02-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

multipartite tournaments
tournaments
cycles

Opis:

Gutin and Rafiey [Multipartite tournaments with small number of cycles, Australas J. Combin. 34 (2006) 17–21] raised the following two problems: (1) Let m ∈ {3, 4, . . ., n}. Find a characterization of strong n-partite tournaments having exactly n − m + 1 cycles of length m; (2) Let 3 ≤ m ≤ n and n ≥ 4. Are there strong n-partite tournaments, which are not themselves tournaments, with exactly n − m + 1 cycles of length m for two values of m? In this paper, we discuss the strong n-partite tournaments D containing exactly n − m + 1 cycles of length m for 4 ≤ m ≤ n − 1. We describe the substructure of such D satisfying a given condition and we also show that, under this condition, the second problem has a negative answer.

Źródło:

Discussiones Mathematicae Graph Theory; 2021, 41, 1; 75-82
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 37.

Tytuł:

Seismic performance evaluation of a base-isolated steel liquid storage tank with limiting-devices considering soil-structure interaction

Autorzy:

Jing, Wei
Tian, Shuang

Powiązania:

https://bibliotekanauki.pl/articles/28099133.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Czasopisma i Monografie PAN

Opis:

Liquid storage tank is widely used in the petrochemical industry, earthquake will lead to structural damage and secondary disasters, and damping control opens up a new way for seismic design of liquid storage tank. Considering soil-structure-fluid interaction, liquid sloshing dynamic behavior and material nonlinearity, a three-dimensional calculation model of shock absorption liquid storage tank is established by combining sliding isolation and displacement-limiting devices. The dynamic responses of the liquid storage tanks under the action of Kobe and El-Centro waves are investigated, and the influence of soil-structure interaction (SSI) on the dynamic response is discussed. The results show that the damping ratio is basically between 30% and 90%. After the SSI is considered, the damping ratio of liquid sloshing wave height is increased, while the damping ratio of the dynamic response of the liquid storage tank is decreased, and the change of elastic modulus has little effect on the damping effect. The sliding isolation with displacement-limiting devices has significant damping control effects on the liquid sloshing wave height and the dynamic responses of the liquid storage tank.

Źródło:

Archives of Civil Engineering; 2023, 69, 4; 635--661
1230-2945

Pojawia się w:

Archives of Civil Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

An approach to multiple attribute decision making with combined weight information in interval-valued intuitionistic fuzzy environment

Autorzy:

Wei, G.
Zhao, X.

Powiązania:

https://bibliotekanauki.pl/articles/206267.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

multiple attribute decision making
interval-valued intuitionistic fuzzy number
interval-valued intuitionistic fuzzy weighted averaging (IIFWA)
weight information

Opis:

With respect to multiple attribute decision making problems with interval-valued intuitionistic fuzzy information, some operational laws of interval-valued intuitionistic fuzzy numbers, score function and accuracy function of interval-valued intuitionistic fuzzy numbers are introduced. A combined optimization model based on the deviation method, by which the attribute weights can be determined, is established. For special situations, in which information about attribute weights is completely unknown, we establish another combined optimization model. By solving this model, we get a simple and exact formula, which can be used to determine the attribute weights. We utilize the interval-valued intuitionistic fuzzy weighted averaging (IIFWA) operator to aggregate the intuitionistic fuzzy information corresponding to each alternative, and then rank the alternatives and select the most desirable one(s) according to the score and accuracy functions. Finally, an illustrative example is given to verify the developed approach and to demonstrate its practicality and effectiveness.

Źródło:

Control and Cybernetics; 2012, 41, 1; 97-112
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Raman Spectroscopy Studies of Carbon-Based Cathode Materials during Aluminum Electrolysis

Autorzy:

Wang, Wei
Chen, Weijie

Powiązania:

https://bibliotekanauki.pl/articles/352779.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

aluminium electrolysis
carbon cathodes
Raman spectroscopy
creep deformation
sodium expansion

Opis:

The sodium expansion and creep strain of semi-graphitic cathodes are investigated using a modified Rapoport apparatus. To further understanding of the sodium and bath penetration damage processes, the impact of external stress fluence on the carbon cathode microstructure has been defined with XRD analysis, Raman spectroscopy and scanning electron microscope (SEM). Graphite atoms fracture into smaller fragments that are less directional than the pristine platelets, which allows for a possible filling of the cracks that thus develop by the sodium and bath during aluminum electrolysis. The average microcrystalline size (calculated by Raman spectroscopy) is reduced by the deformation. The decreased intensity and widened 'G' and 'D' peaks in the analysis indicate the poor order of the sheets along the stacking direction while the consistent layered graphite structure is sustained.

Źródło:

Archives of Metallurgy and Materials; 2019, 64, 4; 1257-1261
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

Kilka uwag na temat idei prawdy w klasycznych Chinach. Część pierwsza: Rozważania metodyczno-metodologiczne
A Few Remarks upon the Idea of Truth in Classical China. Part One: Reflections on Method and Methodology

Autorzy:

Wesołowski, Zbigniew
Siqi, Wei

Powiązania:

https://bibliotekanauki.pl/articles/480563.pdf

Data publikacji:

2013-06-30

Wydawca:

Wydawnictwo Księży Werbistów Verbinum

Tematy:

prawda
kultura chińska
kultura indoeuropejska
historia
the truth
Chinese culture
Indo-European culture
history

Opis:

W powyższym artykule autor omawia ideę prawdy w Chinach klasycznych w perspektywie komparatystycznej. W podejściu do idei prawdy kultury zachodnia i chińska różnią się: dla pierwszej kategoria prawdy jest samo przez się zrozumiała, w drugiej zdaje się ona prawie nie występować. Autor stara się najpierw (pierwsza część artykułu) wypracować metodyczno-metodologiczny horyzont spojrzenia na ideę prawdy w Chinach klasycznych, a potem (druga część) na przykładzie Dialogów konfucjańskich przedstawić konfucjański ideał junzi – ludzi szlachetnych – jako nosicieli dao-prawdy. Pierwsza, metodyczno-metodologiczna część artykułu zawiera zarówno problematykę filozoficzną (np. różnicę pomiędzy pojęciem a ideą / teorią a poglądem, historyczność rozumienia jako zasadę hermeneutyczną, pojęcie egzystencji autentycznej jako pierwszorzędną zasadę heurystyczną, potrójny wymiar pojęcia prawdy w zachodniej tradycji filozoficznej jako drugorzędną zasadę heurystyczną, koncepcję prawdy w hermeneutyce jako najbardziej uniwersalną zasadę heurystyczną), jak również sinologiczną problematykę (natura klasycznego języka chińskiego według tradycji chińskiej i sinologów, problem kandydatów leksykalnych problematyki prawdy w klasycznych Chinach, wybór tekstów do analizy i interpretacji idei prawdy w Chinach klasycznych oraz pojęcie Chin klasycznych). Wszystkie te metodycznometodologiczne kroki służą do stworzenia pomostu pomiędzy dwiema odmiennymi ideami prawdy, które powstały na zachodzie i w Chinach.
In the present article, the author describes the idea of truth in the classical China in the comparative perspective. The Western and Chinese cultures differ in their attitudes towards truth: while the former’s understanding of the category of truth is self-evident – in the latter, truth almost seems not to occur whatsoever. The author attempts first to (in the article’s part one) work out the methodical and methodological horizon to look at the idea of truth in classical China, then (part two), on the example of the Analects of Confucius – to introduce the Confucian ideal of junzi, the noble people as the dao-truth bearers. The first, methodical and methodological, part of the article contains both philosophical problems (eg. the difference between a notion and an idea / theory and attitude, the historicity of understanding as the hermeneutic rule, the notion of authentic existence as the primary hermeneutic rule, the triple dimension of the notion of truth in the Western philosophical tradition as the secondary hermeneutic rule, the concept of truth in hermeneutics as the most universal heuristic rule) – as well as the problems of sinology: the nature of the classical Chinese according to the Chinese tradition and sinologists, the problem of the lexical candidates of the questions concerning truth in classical China, selected texts to analyse and convey the idea of truth in classical China and the notion of classical China. All these methodical and methodological steps serve to create a bridge between two different ideas of truth that came into being – one in the West and one in China.

Źródło:

Nurt SVD; 2013, 1; 7-34
1233-9717

Pojawia się w:

Nurt SVD

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Strategies in technology-enhanced language learning

Autorzy:

Zhou, Yalun
Wei, Michael

Powiązania:

https://bibliotekanauki.pl/articles/781045.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

language learning strategies
self-regulated language learning
strategy instruction
strategy assessment
technology enhanced language learning

Opis:

The predominant context for strategy research over the last three decades has focused on language learning situated in a conventional classroom environment. Computer technology has brought about many changes in language learning and has become ecological and normalized rather than a supporting tool in the language classroom. Consequently, the landscape of language learning has been rapidly and largely changed with the normalization of technologies in people’s daily communication. The pervasive use of mobile technologies and easy access to online resources require that digital language learners understand and employ appropriate learning strategies for learning effectiveness and that their teachers are able and willing to teach these strategies as needed. This article provides an overview of the state-of-the-art research into technology-enhanced language learning strategies. The strategies under review include those for language learning skill areas, language subsystems, and self-regulated learning. At the end, we discuss the pressing issues that Digital Age language learning has posed to learners, teachers, and researchers and propose considerations for strategy research in digital realms.

Źródło:

Studies in Second Language Learning and Teaching; 2018, 8, 2; 471-495
2083-5205
2084-1965

Pojawia się w:

Studies in Second Language Learning and Teaching

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

Dual hesitant Pythagorean fuzzy Bonferroni mean operators in multi-attribute decision making

Autorzy:

Tang, Xiyue
Wei, Guiwu

Powiązania:

https://bibliotekanauki.pl/articles/229277.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

multiple attribute decision making
MADM
dual hesitant Pythagorean fuzzy sets
dual hesitant Pythagorean fuzzy Bonferroni mean operator
DHPFBM
dual hesitant Pythagorean fuzzy geometric Bonferroni mean operator
DHPFGBM
supplier selection
supply chain management

Opis:

In this paper, we investigate the multiple attribute decision making problems based on the Bonferroni mean operators with dual Pythagorean hesitant fuzzy information. Firstly, we introduce the concept and basic operations of the dual hesitant Pythagorean fuzzy sets, which is a new extension of Pythagorean fuzzy sets. Then, motivated by the idea of Bonferroni mean operators, we have developed some Bonferroni mean aggregation operators for aggregating dual hesitant Pythagorean fuzzy information. The prominent characteristic of these proposed operators are studied. Then, we have utilized these operators to develop some approaches to solve the dual hesitant Pythagorean fuzzy multiple attribute decision making problems. Finally, a practical example for supplier selection in supply chain management is given to verify the developed approach and to demonstrate its practicality and effectiveness.

Źródło:

Archives of Control Sciences; 2019, 29, 2; 339-386
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

Dual hesitant pythagorean fuzzy Hamacher aggregation operators in multiple attribute decision making

Autorzy:

Wei, G.
Lu, M.

Powiązania:

https://bibliotekanauki.pl/articles/229895.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

multiple attribute decision making (MADM)
dual Pythagorean hesitant fuzzy values
dual hesitant Pythagorean fuzzy Hamacher hybrid average (DHPFHHA) operator
dual hesitant Pythagorean fuzzy Hamacher hybrid geometric (DHPFHHG) operator
power aggregation operators

Opis:

In this paper, we investigate the multiple attribute decision making (MADM) problem based on the Hamacher aggregation operators with dual Pythagorean hesitant fuzzy information. Then, motivated by the ideal of Hamacher operation, we have developed some Hamacher aggregation operators for aggregating dual hesitant Pythagorean fuzzy information. The prominent characteristic of these proposed operators are studied. Then, we have utilized these operators to develop some approaches to solve the dual hesitant Pythagorean fuzzy multiple attribute decision making problems. Finally, a practical example for supplier selection in supply chain management is given to verify the developed approach and to demonstrate its practicality and effectiveness.

Źródło:

Archives of Control Sciences; 2017, 27, 3; 365-395
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

Transpacyficzna transcendencja. O tłumaczeniu Schulza na język chiński
Trans-Pacifc Transcendence. Translating Bruno Schulz into Chinese

Autorzy:

Lin-Górecka, Wei-Yun

Powiązania:

https://bibliotekanauki.pl/articles/645848.pdf

Data publikacji:

2013-03-04

Wydawca:

Fundacja Terytoria Książki

Opis:

In Trans-Pacifc Transcendence. Translating Bruno Schulz into Chinese, the Taiwanese poet and translator Wei-Yun Lin-Górecka writes about her journey into The Age of Genius – how she fell in love with Bruno Schulz’s book when she read The Book in London, how she decided to come to Poland to learn Polish just to translate his works from the original, and how she finally managed to cross the geographical/linguistic/cultural boundaries to reach the “root” and bring out “spring” out of Schulz’s work and make it flourish fluently, freely, and feverishly in her native language, i.e. traditional Chinese. So far Wei-Yun Lin-Górecka has translated Schulz’s Cinammon Shops, been published under the title Street of Crocodiles by Unitas Publishing Co., one of the leading publishing companies in Taiwan. Her translation of Sanatorium under the Sign of an Hourglass will be published in the fall of 2013.

Źródło:

Schulz/Forum; 2013, 2; 113-118
2300-5823

Pojawia się w:

Schulz/Forum

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

Properties of Ni60/SiO2 Coating Prepared by the Pyrolysis Products of Rice Husk

Autorzy:

Wei, Chunxue
Li, Hongbing

Powiązania:

https://bibliotekanauki.pl/articles/2203726.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Ni60/SiO2
coating
rice husk
hardness
wear

Opis:

Surface coating technology, as the main technology to improve the fatigue life of mechanical systems, has been well applied in mechanical equipment. The present study aimed to explore low-cost surface coating preparation technology using inexpensive rice husk as the research object, and the pyrolysis process behavior of rice husk was analyzed. The Ni60/SiO2 coating was prepared on the surface of the 45# steel substrate using the pyrolysis product SiO2 fiber as the reinforcing phase and supersonic plasma-spraying equipment. The results showed no defects such as cracks, pores, and inclusions in the prepared coating. The nanohardness of the Ni60/SiO2 coating reached 6506 μN, and the average friction coefficient reached 0.42. In the friction-and-wear experiment, the Ni60/SiO2 coating was manifested as an abrasive wear mechanism.

Źródło:

Archives of Metallurgy and Materials; 2023, 68, 1; 37--42
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 46.

Tytuł:

Outpaths of Arcs in Regular 3-Partite Tournaments

Autorzy:

Guo, Qiaoping
Meng, Wei

Powiązania:

https://bibliotekanauki.pl/articles/32222728.pdf

Data publikacji:

2021-11-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

multipartite tournament
regular 3-partite tournament
out-paths

Opis:

Guo [Outpaths in semicomplete multipartite digraphs, Discrete Appl. Math. 95 (1999) 273–277] proposed the concept of the outpath in digraphs. An outpath of a vertex x (an arc xy, respectively) in a digraph is a directed path starting at x (an arc xy, respectively) such that x does not dominate the end vertex of this directed path. A k-outpath is an outpath of length k. The outpath is a generalization of the directed cycle. A c-partite tournament is an orientation of a complete c-partite graph. In this paper, we investigate outpaths of arcs in regular 3-partite tournaments. We prove that every arc of an r-regular 3-partite tournament has 2- (when r ≥ 1), 3- (when r ≥ 2), and 5-, 6-outpaths (when r ≥ 3). We also give the structure of an r-regular 3-partite tournament D with r ≥ 2 that contains arcs which have no 4-outpaths. Based on these results, we conjecture that for all k ∈ {1, 2, . . ., r − 1}, every arc of r-regular 3-partite tournaments with r ≥ 2 has (3k − 1)- and 3k-outpaths, and it has a (3k + 1)-outpath except an r-regular 3-partite tournament.

Źródło:

Discussiones Mathematicae Graph Theory; 2021, 41, 4; 893-904
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

A source discrimination method of mine water-inrush based on 3D spatial interpolation of rare classes
Analiza dyskryminacyjna źródeł wycieków wody do kopalni na podstawie trójwymiarowej interpolacji danych o zdarzeniach rzadkich

Autorzy:

Jiang, Qiong
Zhao, Weidong
Zheng, Yong
Wei, Jiajia
Wei, Chao

Powiązania:

https://bibliotekanauki.pl/articles/219790.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

analiza dyskryminacyjna źródeł wycieków
wyciek wód
jakość wód
kryterium Bayesowskie
kategoria zdarzeń rzadkich
source discrimination
water inrush
water quality
Bayesian classifier
rare class

Opis:

When the distribution of water quality samples is roughly balanced, the Bayesian criterion model of water-inrush source generally can obtain relatively accurate results of water-inrush source identification. However, it is often difficult to achieve desired classification results when training samples are imbalanced. Sample imbalance is common in the source identification of mine water-inrush. Therefore, we propose a three-dimensional (3D) spatial resampling method based on rare water quality samples, which achieves the balance of water quality samples. Based on the virtual water sample points distributed by the 3D grid, the method uses the 3D Inverse Distance Weighting (IDW) method to interpolate the groundwater ion concentration of the virtual water samples to achieve oversampling of rare water samples. Case study in Gubei Coal Mine shows that the method improves overall discriminant accuracy of the Bayesian criterion model by 5.26%, from 85.26% to 90.69%. In particular, the discriminative precision of the rare class is improved from 0% to 83.33%, which indicates that the method can improve the discriminant accuracy of the rare class to large extent. In addition, this method increases the Kappa coefficient of the model by 19.92%, from 52.26% to 72.19%, increasing the degree of consistency from “general” to “significant”. Our research is of significance to enriching and improving the theory of prevention and treatment of mine water damage.
W przypadku zrównoważonych danych o jakościowym rozkładzie próbek, zastosowanie kryterium Bayesowskiego do modelowania źródeł wycieków daje stosunkowo dokładne wyniki w analizie dyskryminacyjnej źródeł wycieków wody kopalnianej. Jednakże w przypadku niezrównoważonych danych, pożądane efekty kategoryzacji są niezmiernie trudne do uzyskania. Dane o składzie próbek są w znacznej mierze niezrównoważone, i jest to powszechny problem napotykany przy identyfikacji źródeł wycieków. W obecnej pracy zaproponowano więc trójwymiarową (3D) metodę powtórnego próbkowania z wykorzy-staniem próbek wód z kategorii zdarzeń rzadkich, tak by uzyskać zrównoważony zbiór danych. W oparciu o wirtualne punkty na trójwymiarowej siatce, wykorzystano trójwymiarową metodęśredniej ważonej odległością (Inverse Distance Weighing – IDW) do interpolacji stężenia jonów w wodach gruntowych w wirtualnych próbkach wody, w celu nadpróbkowania dla kategorii zdarzeń rzadkich. Studium przypadku kopalni węgla Gubei pokazuje, że metoda poprawia dokładność dopasowania modelu w oparciu o kryterium Bayesowskie o 5.25% (z 85.26% na 90.96 %). W szczególności, dokładność rozróżniania i dyskryminacji próbek należących do kategorii zdarzeń rzadkich wzrasta od 0% do 83.33%, co oznacza bardzo znaczna poprawę. Ponadto, wartość współczynnika Kappa wzrasta o 19.92%, od 52.26 % do 72.19%, tym samym podnosząc poziom zgodności metody z poziomu ogólnego na „znaczący”. Prowadzone przez nas badania mają poważne znaczenie z punktu widzenia udoskonalenia teorii leżących u podstaw metod i technik zapobiegania i kontroli wycieków wód kopalnianych.

Źródło:

Archives of Mining Sciences; 2019, 64, 2; 321-333
0860-7001

Pojawia się w:

Archives of Mining Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

The relationship between human behavior and stock returns in efficient stock markets: the mood-effect under a cultural perspective
Związek pomiędzy ludzkim zachowaniem a zwrotem z akcji na efektywnych giełdach: efekt nastrojów w perspektywie kulturowej

Autorzy:

Senarathne, Chamil W.
Jianguo, Wei

Powiązania:

https://bibliotekanauki.pl/articles/581118.pdf

Data publikacji:

2019

Wydawca:

Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu

Tematy:

efficient markets
stock returns
culture
weather variables
OLS regression
logit regression.
efektywne rynki
zwrot z akcji
kultura
zmienne pogodowe
regresja OLS
regresja logit

Opis:

This paper examines the relationship between stock return and human behavior in ten well-established stock exchanges, from a monthly data sample from January 1991 to December 2015. The results show that there is no sufficient evidence to generalize the impact of human behaviour on common stock return, through mood state altered by weather variables. When the substance of the underlying process (i.e. the weather alters the mood state) is established by logit regression, the results reveal that there is a bias in the variable selection as regressors, which is subject to the metrological situation of each country (or region). As such, collectivism does not appear to be an explanatory variable of the magnitude of price changes, as a variable uncontrolled for in the regression. Although the null hypothesis is accepted for four countries in the sample, the findings do not warrant researchers to generalize the effect of human behavior on stock price changes through weather variables, for a large population.
W tym artykule zbadano związek między zwrotem z akcji a ludzkim zachowaniem na przykładzie dziesięciu uznanych giełd, opierając się na miesięcznej próbce danych z okresu od stycznia 1991 r. do grudnia 2015 r. Wyniki pokazują, że nie ma wystarczających dowodów, aby uogólnić wpływ ludzkich zachowań wywołanych zmiennymi warunkami pogodowymi na zwrot z akcji zwykłych. Gdy zasada leżąca u podstaw procesu (tzn. pogoda zmienia stan nastroju) jest ustalana przez regresję logitów, wyniki ujawniają, że w wyborze zmiennych jako regresorów występuje nastawienie zależne od sytuacji metrologicznej każdego z krajów (lub regionów). Kolektywizm jako taki nie wydaje się zmienną wyjaśniającą wielkość zmian cen jako zmienną niekontrolowaną w regresji. Chociaż hipoteza zerowa w badanej próbie została przyjęta dla czterech krajów, odkrycia te nie upoważniają badaczy do uogólnienia wpływu ludzkich zachowań na zmiany cen akcji przez zmienne pogodowe, dla dużej populacji.

Źródło:

Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2019, 63, 2; 207-220
1899-3192

Pojawia się w:

Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Industry competition and common stock returns

Autorzy:

Senarathne, Chamil W.
Long, Wei

Powiązania:

https://bibliotekanauki.pl/articles/419817.pdf

Data publikacji:

2019

Wydawca:

Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu

Tematy:

industry competitiveness
common stock return
competitive position
value chain innovation
Herfindahl index

Opis:

This paper examines the relationship between industry competitiveness and common stock returns of twenty listed firms of the Colombo Stock Exchange. The Herfindahl (1950) H index is extended to include the variance of cross sectional earnings dispersion that accounts for the relative competition of an industry. The regression results show that the industry competitiveness is unrelated to common stock returns when the extended H index is included in the regression specification as a common factor. Although the overall market factor (i.e. market return) remains statistically significant, coefficients of extended H index together with two other controlled factors become statistically insignificant in the regression. These findings suggest that the risk pertaining to industry competition is not priced as it could be diversified away by the appropriately managed value chain of the individual firms and, as such, no compensation for the risk of industry competition is demanded.

Źródło:

Nauki o Zarządzaniu; 2019, 24, 3; 24-35
2080-6000

Pojawia się w:

Nauki o Zarządzaniu

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 50.

Tytuł:

Research on Ladle Nozzle Clogging during Continuous Casting of Non-Oriented Electrical Steel with High Silicon

Autorzy:

Kong, Wei
Cang, Da-Qiang

Powiązania:

https://bibliotekanauki.pl/articles/355370.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

electrical steel
ladle nozzle
clogging
CC

Opis:

To figure out the reason causing ladle nozzle clogging during CC (continuous casting) of a non-oriented electrical steel with high silicon (or HNO for short) and get a method to address it, this paper studied the theoretical calculation of flow rates during CC, the inclusions around the slide gate where ladle nozzle clogging happened, and Ca-treatment at the end of RH for decreasing ladle clogging of the electrical steel both theoretically and practically. The results showed that: The bigger diameter of a nozzle or less nozzle clogging can guarantee an enough flow rate for reaching the target casting speed. Ladle nozzle clogging can be predicted by comparing the percentage of slide gate opening. Al₂ O₃ and its composite inclusions were the main reason that caused the ladle nozzle clogging of the electrical steel. Higher [Al] or TO will increase the amount of Pure Ca wires for Ca-treatment. The results of the verification tests fit the thermodynamic calculation, and Ca-treatment using pure Ca wires could prevent ladle nozzles from clogging without affecting the magnetic properties of the electrical steel.

Źródło:

Archives of Metallurgy and Materials; 2019, 64, 1; 257-264
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 51.

Tytuł:

Thoughts on the Theoretical Problems in the Book of Xi Jinping , Zarządzanie Chinami I [The Governance of China I], Wydawnictwo (Publishing House) Adam Marszałek, Toruń 2019, pp. 572

Autorzy:

Wiktor, Zbigniew
Xiao, (Jia) Wei

Powiązania:

https://bibliotekanauki.pl/articles/1963337.pdf

Data publikacji:

2019-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

governance of China
Chinese way
building socialism
Marxism
Leninism
Maoism
scientifi c socialism
transition period
class struggle
Confucianism
class contradictions
Deng Xiaoping theory
socialist market economy
Xi Jinping reform
state-owned economic reform
historical materialism
productivity
perspective

Opis:

The article includes five parts: 1. Introduction – information about the book promotion event held in Warsaw on December 19, 2019 on the Polish edition of Xi Jinping’s Governance of China vol. I. The book launch was great not only because of the editing and the contents of the book, but also because it was a political, economic, cultural and international event, since the author is the number one politician not only in China but also in the contemporary world. The introduction includes information about the book content and demonstrates its importance for the theoretical generalizations and recognition of the main problems of contemporary China. 2. According to the authors of the paper, problems mentioned in the book are especially important. The original Chinese way of building socialism and the early stages of Chinese revolution were national, anti-feudal, anti-capitalist, democratic and socialist. Mao Zedong established class-based Maoism as a Marxism-Leninism in the Chinese version, while Deng Xiaoping and his successors established and developed the socialist market economy, which is the continuation of Maoism in the new era and they created the Chinese path to the anti-capitalist revolution and the building of socialism with Chinese characteristics. The perspective of the development of China till 2021 and 2049 (as a modern and developed socialism) and its influence on the national rejuvenation is not only Chinese but also an international issue. 3. Third part of the paper is devoted to the problems of building socialism in China, the analysis of the theory of Xi Jinping, the leading role of the CPC, the economic role of the owner and foreign capital in economy and policy, and the socio-economic contradictions in the contemporary PRC. 4. Forth part concerns Confucianism and Marxism as theoretical and practical problems in China; the original Chinese culture and civilization; the continuation and discontinuation of the historical development in contemporary epoch; the original development; the policy of opening- -up; the necessity of considering human contents of Confucianism in building and developing of socialism in China. 5. Fifth part of the paper is on the future status of the Communist Party of China’s Economy. Since the emergence of state-owned economy, it has played a huge role in the economic development of all countries. However, under the way of neoliberalism, state-owned economy has gradually been associated with backwardness and inefficiency. On the forum of state-owned economy enterprise reform in China, General Secretary Xi Jinping gave out important instructions. State-owned enterprises are an important force for strengthening the comprehensive power of the country and safeguarding the common interests of the people. State-owned enterprises must be made stronger, better and bigger. Academia has had a huge disagreement on this, and some scholars believe that this is an act of favoritism toward state-owned enterprises. This paper analyzes China’s state-owned economy from the perspective of total factor productivity (TFP), Marx’s historical materialism, national productivity, and social development, clarifying that state-owned economic reform is diff erent from the system of “profit based demands” rooted in the private economic market, but a system based on national productivity and the “needs” of the people. Making state-owned enterprises “stronger, better, and bigger” is in line with the historical development of socialism and material productivity, resolving doubts on the direction of state-owned economic reform.

Źródło:

Reality of Politics; 2019, 10; 189-224
2082-3959

Pojawia się w:

Reality of Politics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 52.

Tytuł:

An algorithm for automatic detection of runways in aerial images

Autorzy:

Han Jun Wei.
Lei Guo.

Powiązania:

Machine Graphics & Vision 2001, nr 4, s. 503-518

Data publikacji:

2001

Tematy:

Algorytmy stosowanie wojsko
Lotniska wojskowe
Lotnictwo wojskowe komputeryzacja

Dostawca treści:

Bibliografia CBW

/5

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Skocz do pozycji: 53.

Tytuł:

Examining the success factors of smart watch : a behavioral perspective on consumers
Badanie czynników sukcesu inteligentnego zegarka : behawioralna perspektywa konsumentów

Autorzy:

Lin, Chih Wei
Yang, Chin-Cheng
Sia, Wei Yeng
Tang, Kai-Yu

Powiązania:

https://bibliotekanauki.pl/articles/404795.pdf

Data publikacji:

2019

Wydawca:

Politechnika Częstochowska

Tematy:

perceived playfulness
compatibility
technology acceptance model
innovation diffusion theory
postrzegana użyteczność
kompatybilność
model akceptacji technologii
teoria dyfuzji innowacji

Opis:

The purpose of this study was to investigate factors influencing consumers’ intention to use Apple Watch by applying Decomposed Theory of Planned Behavior (DTPB). The subject of the study was the Apple Watch users in Taiwan. The researcher used purposive and snowball sampling as the sampling method, a total of 350 surveys were issued, 327 valid surveys were collected and the effective response rate was 93.43%. The collected data were analyzed by confirmatory factor analysis and structural equation model. The results are illustrated as follow. First, the overall behavior model of Apple Watch users constructed by Decomposed Theory of Planned Behavior in this study fitted well. Second, the research model has well explanatory power to wearable device users, which is R² of attitudes, subjective norms and perceived behavioral control on behavior intentions have reached 63%. Third, perceived usefulness and perceived playfulness are the most two important influencing factors on attitudes. Interpersonal influence is the most important influencing factor to subjective norm. The most influencing factor of perceived behavioral control is facilitating condition.
Celem tego badania było zbadanie czynników wpływających na zamiar korzystania przez Apple z zegarka przez zastosowanie dekompozycji teorii planowanego zachowania (DTPB). Przedmiotem badania byli użytkownicy Apple Watch na Tajwanie. Badacz zastosował celowe i śnieżkowe pobieranie próbek jako metodę pobierania próbek, wykonano w sumie 350 badań, zebrano 327 ważnych badań, a efektywny odsetek odpowiedzi wyniósł 93,43%. Zebrane dane przeanalizowano za pomocą potwierdzającej analizy czynnikowej i modelu równań strukturalnych. Wyniki zostały zilustrowane w następujący sposób. Po pierwsze, ogólny model zachowania użytkowników Apple Watch skonstruowany przez Dekomponowaną Teorię Planowanego Zachowania (DTPB) w tym badaniu dobrze skonstruowany. Po drugie, model badawczy wyjaśnia użytkownikom tych urządzeń, subiektywnych norm i postrzeganej kontroli behawioralnej nad zamiarami zachowań osiągnął 63%. Po trzecie, postrzegana użyteczność i postrzegana zabawa to dwa najważniejsze czynniki wpływające na postawy użytkowników.

Źródło:

Polish Journal of Management Studies; 2019, 20, 2; 368-378
2081-7452

Pojawia się w:

Polish Journal of Management Studies

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 54.

Tytuł:

Triplex qRT-PCR with specific probe for synchronously detecting Bovine parvovirus, bovine coronavirus, bovine parainfluenza virus and its applications

Autorzy:

Geng, J.
Niu, Y.
Wei, L.
Li, Q.
Gong, Z.
Wei, S.

Powiązania:

https://bibliotekanauki.pl/articles/2087278.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

bovine parvovirus
bovine coronavirus
bovine parainfluenza virus
qRT-PCR
specificity
sensitivity

Źródło:

Polish Journal of Veterinary Sciences; 2020, 23, 4
1505-1773

Pojawia się w:

Polish Journal of Veterinary Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 55.

Tytuł:

A near-infrared fluorescent probe for selective detection of fluorion

Autorzy:

Kang, Yan-Fei
Wei, Fan
Meng, Ya-Li
Xin, Zhen-Hui
Wei, Dong

Powiązania:

https://bibliotekanauki.pl/articles/778367.pdf

Data publikacji:

2020

Wydawca:

Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie

Tematy:

Probe
Fluorescence
Fluoride anion
Selectivity
Near-infrared

Opis:

In this work, we have designed and synthesized the fluorescent probe 1, which was capable to selectively detect fluoride anion (F⁻). More importantly, the probe 1 possessed near-infrared excitation and emission wavelengths (excitation at 650 nm and emission at 695), and the probe solution had changed dramatically from yellow to cyan with the addition of F^–. In addition, the fluorescence intensity exhibited perfectly positive correlation with concentration of F⁻ concentration from 0 to 40 μM (R² = 0.9972), which offered the important condition for quantitative analysis. The probe 1 owned detection limit of 46 nM. Therefore, this near-infrared probe can be of great benefit for detecting F⁻ in practical application.

Źródło:

Polish Journal of Chemical Technology; 2020, 22, 1; 1-5
1509-8117
1899-4741

Pojawia się w:

Polish Journal of Chemical Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 56.

Tytuł:

Three-Seas Initiative countries and their competitiveness in Europe
Kraje inicjatywy Trójmorza i ich konkurencyjność w Europie

Autorzy:

Wierzbiński, Bogdan
Surmacz, Tomasz
Wei, Li

Powiązania:

https://bibliotekanauki.pl/articles/548254.pdf

Data publikacji:

2020

Wydawca:

Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego

Tematy:

regional development
regional competitiveness
evolution of economics processes
rozwój regionalny
konkurencyjność regionów
ewolucja procesów ekonomicznych

Opis:

The paper shows the regional characteristics of the Three-Seas area in terms of defining the competitive advantage of the whole region and its countries through the development of relationships and changes in their approaches to the competitive paradigm in this area. The scientific discussion undertaken in this paper is related to internal resources in terms of ICT and human resources development (and its involvement in science and technology – measured by Human Resources for science and technology) as well as innovativeness. The authors have chosen indicators of development that could be beneficial in terms of decreasing historical economic developmental inequalities, with some differences between the Three-Seas countries being analysed for the period of 2006–2018. The secondary data was taken from Eurostat and other available sources. The regional strategy should focus on the knowledge-based economy, and the possibilities for rapid development in this area. This gives opportunities to make rapid progress in a region centrally located in Europe to generate great potential to strengthen accumulated resources and, in the nearest future, to create the possibility of becoming a hub connecting eastern and western Europe.
W pracy przedstawiono regionalną charakterystykę obszaru Trójmorza pod względem określania przewagi konkurencyjnej całego regionu i jego krajów poprzez rozwój relacji i zmianę podejścia do konkurencyjnego paradygmatu tego obszaru. Dyskusja naukowa podjęta w tym artykule odnosi się do zasobów wewnętrznych związanych z rozwojem ICT i potencjału ludzkiego (i jego wpływu na naukę i technologię – mierzoną przez HRSC, czyli Human resources for science and technology), a także z innowacyjnością. Autorzy wybrali wskaźniki rozwoju, które mogą być korzystne pod względem zmniejszania historycznych nierówności rozwojowych pod względem gospodarczym, a różnice między krajami Trójmorza zostały przeanalizowane dla lat 2006–2018. Dane wtórne pochodzą z Eurostatu i innych dostępnych źródeł. Strategia regionalna powinna koncentrować się na gospodarce opartej na wiedzy, dającej możliwości rozwoju tego obszaru. Daje to możliwość szybkiego rozwoju regionu o centralnej lokalizacji w Europie, co stwarza doskonałą okazję do wzmocnienia zakumulowanych zasobów, a w najbliższej przyszłości daje szansę na stanie się łącznikiem między wschodem a zachodem w Europie.

Źródło:

Nierówności Społeczne a Wzrost Gospodarczy; 2020, 62; 75-88
1898-5084
2658-0780

Pojawia się w:

Nierówności Społeczne a Wzrost Gospodarczy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 57.

Tytuł:

Distribution of values of permanent and standard forms of (0,1)-matrices

Autorzy:

Wei, Wandi
Yang, Benfu
Gao, Shuhong

Powiązania:

https://bibliotekanauki.pl/articles/721482.pdf

Data publikacji:

1989

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Źródło:

Banach Center Publications; 1989, 25, 1; 207-231
0137-6934

Pojawia się w:

Banach Center Publications

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 58.

Tytuł:

Improved linear complexities of the frequency hopping sequences in two optimal sets

Autorzy:

Gao, J.
Li, X.
Wei, Y.

Powiązania:

https://bibliotekanauki.pl/articles/206234.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

frequency hopping sequence
linear complexity
permutation polynominal
optimal set

Opis:

For the anti-jamming purpose, high linear complexity is desired for each frequency hopping sequence in an optimal set. Using a proper power permutation, Wang has shown that an optimal set of frequency hopping sequences with small linear complexity can be transformed into a new optimal set of frequency hopping sequences with large linear complexity. This paper conains two results. First, we extend the result of Wang. A power permutation is only suitable for a special construction of optimal set of frequency hopping sequences, see Wang (2011). However, the power permutation chosen in this paper applies to the general construction of optimal set of frequency hopping sequences. Second, by using a binomial permutation polynomial P(x), which is different from those permutations used before, we obtain a novel optimal set of frequency hopping sequences with high linear complexity from an optimal set of frequency hopping sequences with small linear complexity. By counting the number of different roots in the sequence representation, we determine the linear complexities of the frequency hopping sequences in two optimal sets transformed by the power permutation or binomial permutation.

Źródło:

Control and Cybernetics; 2012, 41, 2; 317-334
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 59.

Tytuł:

Fraction of heavy metals in sludges from typical coking wastewater treatment plants by modified BCR sequential extraction procedure

Autorzy:

Diao, C. P.
Wei, C. H.

Powiązania:

https://bibliotekanauki.pl/articles/207538.pdf

Data publikacji:

2017

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

absorption spectroscopy
biological water treatment
BRC
heavy metals
spektroskopia absorpcyjna
biologiczne oczyszczanie wody
metale ciężkie

Opis:

Fractions of 8 heavy metals (Cd, Cr, Hg, Cu, Zn, Pb, Ni and As) in sludges from two typical coking wastewater treatment plants were determined by atomic absorption spectroscopy (AAS) using the modified the European Community Bureau of Reference sequential extraction procedure as the pretreatment technology. The sludges from biological, coagulation deposition units and the discharged sludges of two plants were sampled and the exchangeable, reducible, oxidable, residual fraction and the total content were determined. The oxidable or residual fraction was the predominant fraction in various sludges and on the contrary that the values of the exchangeable and reducible fractions were much lower. Poor biological availability and low potential environment risk of heavy metals was found in sludges from typical coking wastewater treatment plants. Further results of cluster analysis conducted by SPSS that the units with similar conditions could be classed together identified that the unit condition was one key factor affecting on the fraction of heavy metals in sludges.

Źródło:

Environment Protection Engineering; 2017, 43, 4; 191-207
0324-8828

Pojawia się w:

Environment Protection Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 60.

Tytuł:

Properties of Cotton Fabric Modified with a Chitosan Quaternary Ammonium Salt Nanoparticle
Własności tkaniny bawełnianej modyfikowanej nanocząsteczką czwartorzędowej soli amonowej chitozanu

Autorzy:

Wei, Z.
Xinlan, D.
Jinjie, Z.

Powiązania:

https://bibliotekanauki.pl/articles/233837.pdf

Data publikacji:

2018

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych

Tematy:

fibre-reactive quaternary ammonium salt of chitosan
nanoparticle
cotton fabric
antibacterial activity
wrinkle resistance
laundering durability
czwartorzędowa sól amonowa chitozanu
nanocząstka
tkanina bawełniana
działanie antybakteryjne
odporność na marszczenie
trwałość prania

Opis:

In this study, a novel fibre-reactive nanoparticle was synthesised in three steps. First awater-soluble chitosan derivative, N-[(2-hydroxy-3-trimethylammonium)propyl] chitosanchloride (short for HTCC), was prepared by reacting chitosan with 2,3-poxypropyltrimethylammonium chloride. Second the HTCC was further modified by reacting it with N-(hydroxymethyl)-acrylamide to prepare a fibre-reactive chitosan derivative, O-methyl acrylamide quaternary ammonium salt of chitosan (short for NMA-HTCC), which can form covalent bonds with cellulose fibre under alkaline conditions. Thirdly NMA-HTCC nanoparticles were prepared by the ionotropic gelation reaction method. The particle size and TEM researches indicated that the globular NMA-HTCC nanoparticle with a size distribution of 15 - 50 nm was successfully prepared and presented good dispersity and stability. Then the NMA-HTCC nanoparticle was used for the textile finishing of cotton fabric. The modified cotton fabric demonstrated excellent durable wrinkle-resistance and antibacterial activity against Staphylococcus aureus and Escherichia coli, even after 50 repeated launderings. Moreover the shrinkage-resistance of the modified cotton fabric was distinctly improved, and the contact angle was slightly larger, while the whiteness and mechanical properties had not changed in an obvious way.
W pracy syntetyzowano nanocząsteczkę reaktywną wobec włókien w trzech etapach. Najpierw przez poddanie reakcji chitozanu z chlorkiem 2,3-epoksypropylotrimetyloamoniowym otrzymano rozpuszczalną w wodzie pochodną chitozanu, chlorek N-[(2-hydroksy-3-trimetyloamino) propylo] chitozanu (HTCC). Następnie HTCC modyfikowano przez poddanie reakcji z N-(hydroksymetylo)-akryloamidem w celu wytworzenia reaktywnej wobec włókna pochodnej chitozanu, czwartorzędowej soli amonowej O-metyloakryloamidowej chitozanu (NMA-HTCC), która może tworzyć wiązania kowalencyjne z włóknami celulozowymi w warunkach alkalicznych. W kolejnym etapie przygotowano nanocząstki NMA-HTCC metodą jonotropowej reakcji żelowania. Badania rozmiarów cząstek i TEM wykazały, że kuliste nanocząstki NMA-HTCC o rozkładzie wielkości 15-50 nm miały dobrą dyspersyjność i stabilność. Następnie nanocząstki NMA-HTCC zostały użyte do wykańczania tkanin bawełnianych. Zmodyfikowana tkanina bawełniana wykazała się trwałą odpornością na gniecenie i działaniem przeciwbakteryjnym na bakterie Staphylococcus aureus i Escherichia coli, nawet po 50 powtarzanych praniach. Ponadto znacznie poprawiona została odporność na kurczenie się zmodyfikowanej tkaniny bawełnianej, a kąt zwilżania był nieco większy, natomiast biel i właściwości mechaniczne nie uległy zmianie w znaczący sposób.

Źródło:

Fibres & Textiles in Eastern Europe; 2018, 4 (130); 116-121
1230-3666
2300-7354

Pojawia się w:

Fibres & Textiles in Eastern Europe

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 61.

Tytuł:

Pilling Performance of Cashmere Knitted Fabric of Woollen Ring Yarn and Mule Yarn
Pilling dzianin kaszmirowych wykonanych z wełnianych przędz obrączkowych i wózkowych

Autorzy:

Li, L.
Zhu, M.
Wei, X

Powiązania:

https://bibliotekanauki.pl/articles/231821.pdf

Data publikacji:

2014

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych

Tematy:

cashmere knitted fabric
ring yarn
mule yarn
pilling
kaszmirowe dzianiny
przędza ring
przędza muł
mechacenie

Opis:

The yarn for cashmere knitted fabric is mainly processed by ring spinning and mule spinning. In this paper, four kinds of cashmere dye colours (red, black, grey, and beige) were selected to compare the pilling performance of cashmere knitted fabric of mule yarn and ring yarn. The pilling rates of the fabrics for different colours and spinning methods were tested using ICI’s Pilling Box, and the worn-off weight of the pill and fuzz for each sample was measured using an electronic balance. The results showed that the pilling rate of cashmere knitted fabric of mule yarn is higher than that of ring yarn, and that the worn-off weight of cashmere knitted fabric of mule yarn is less than that of ring yarn.
Przędze przeznaczone dla dzianin kaszmirowych są głównie produkowane na przędzarkach obrączkowych i wózkowych. W pracy badano przędze barwione czterema kolorami (czerwony, czarny, szary i beż). Pilling dzianin wykonanych z przędz o czterech kolorach i na dwóch rodzajach przędzarek sprawdzono za pomocą „ICI Pilling Box”, za pomocą ważenia dzianin oraz wytworzonego puchu pil każdej z próbek. Stwierdzono, że pilling dzianin wykonanych z przędz przędzarek wózkowych jest większy niż z przędz obrączkowych.

Źródło:

Fibres & Textiles in Eastern Europe; 2014, 1 (103); 74-75
1230-3666
2300-7354

Pojawia się w:

Fibres & Textiles in Eastern Europe

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 62.

Tytuł:

Consensus for multiple unmanned surface vehicle (MUSV) systems with Markov switching topologies

Autorzy:

Wang, Liyuan
Yue, Wei
Zhang, Rubo

Powiązania:

https://bibliotekanauki.pl/articles/259744.pdf

Data publikacji:

2019

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

consensus
unmanned surface vehicle (USV)
Markov process
wave-induced disturbance

Opis:

This paper is concerned with sampled-data leader following consensus of multiple unmanned surface vehicle (MUSV) systems with random switching network topologies and wave-induced disturbance. By modelling the switching of network topologies with the use of a Markov process and considering the effect of wave-induced disturbance, a new sampleddata consensus control protocol is proposed. By employing an appropriate Lyapunov-Krosovskii function method and the weak infinitesimal operation, a novel stability criterion is derived, which ensures that the MUSV system can reach robustly leader-following consensus with H∞ performance satisfied. Based on this criterion, the Markov dependent switching consensus controller gains are obtained by solving a set of linear matrix inequalities. Finally, an illustrative example is given to verify the effectiveness of the proposed control scheme for MUSV systems.

Źródło:

Polish Maritime Research; 2019, 1; 145-152
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 63.

Tytuł:

Fractional nonlocal integrodifferential equations of mixed type with time-varying generating operators and optimal control

Autorzy:

Wang, J.
Wei, W.
Yang, Y.

Powiązania:

https://bibliotekanauki.pl/articles/254750.pdf

Data publikacji:

2010

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

fractional integrodifferential equations of mixed type
time-varying generating operators
nonlocal conditions
fixed point theorem
existence
optimal control

Opis:

In this paper, a class of fractional integrodifferential equations of mixed type with time-varying generating operators and nonlocal conditions is considered. Using a contraction mapping principle and Krasnoselskii's fixed point theorem via Gronwall's inequailty, the existence and uniqueness of mild solution are given. The existence of optimal pairs of systems governed by fractional integrodifferential equations of mixed type with time-varying generating operators and nonlocal conditions is also presented.

Źródło:

Opuscula Mathematica; 2010, 30, 2; 217-234
1232-9274
2300-6919

Pojawia się w:

Opuscula Mathematica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 64.

Tytuł:

Existence and uniqueness results for fractional differential equations with boundary value conditions

Autorzy:

Lv, L.
Wang, J.
Wei, W.

Powiązania:

https://bibliotekanauki.pl/articles/254863.pdf

Data publikacji:

2011

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

fractional differential equations
boundary value conditions
singular Gronwall inequality
existence
uniqueness

Opis:

In this paper, we study the existence and uniqueness of fractional differential equations with boundary value conditions. A new generalized singular type Gronwall inequality is given to obtain important a priori bounds. Existence and uniqueness results of solutions are established by virtue of fractional calculus and fixed point method under some weak conditions. An example is given to illustrate the results.

Źródło:

Opuscula Mathematica; 2011, 31, 4; 629-643
1232-9274
2300-6919

Pojawia się w:

Opuscula Mathematica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 65.

Tytuł:

Nonlocal impulsive problems for fractional differential equations with time-varying generating operators in Banach spaces

Autorzy:

Wang, J.
Yang, Y.
Wei, W.

Powiązania:

https://bibliotekanauki.pl/articles/255546.pdf

Data publikacji:

2010

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

nonlocal conditions
impulsive equations
fractional differential equations
time-varying generating operators
PC-mild solution

Opis:

In this paper, we study the existence and uniqueness of the PC-mild solution for a class of impulsive fractional differential equations with time-varying generating operators and nonlocal conditions. By means of the generalized Ascoli-Arzela Theorem given by us and the fixed point theorem, some existence and uniqueness results are obtained. Finally, an example is given to illustrate the theory.

Źródło:

Opuscula Mathematica; 2010, 30, 3; 361-381
1232-9274
2300-6919

Pojawia się w:

Opuscula Mathematica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 66.

Tytuł:

On some impulsive fractional differential equations in Banach spaces

Autorzy:

Wang, J.
Wei, W.
Yang, Y.

Powiązania:

https://bibliotekanauki.pl/articles/255610.pdf

Data publikacji:

2010

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

fractional differential equations with impulses
nonlinear impulsive singular version of the Gronwall inequality
PC-mild solutions
existence

Opis:

This paper deals with some impulsive fractional differential equations in Banach spaces. Utilizing the Leray-Schauder fixed point theorem and the impulsive nonlinear singular version of the Gronwall inequality, the existence of PC-mild solutions for some fractional differential equations with impulses are obtained under some easily checked conditions. At last, an example is given for demonstration.

Źródło:

Opuscula Mathematica; 2010, 30, 4; 507-525
1232-9274
2300-6919

Pojawia się w:

Opuscula Mathematica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 67.

Tytuł:

Application of projection pursuit regression model for blasting vibration velocity peak prediction

Autorzy:

Shi, Jianjun
An, Huaming
Wei, Xin

Powiązania:

https://bibliotekanauki.pl/articles/1852582.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

wibracje wybuchowe
przewidywanie
prędkość drgań
model regresji
pościg projekcji
płytki tunel
algorytm genetyczny
blasting vibration
vibration velocity
prediction
projection pursuit
regression model
shallow tunnel
genetic algorithm

Opis:

Based on Projection Pursuit Regression Theory (PPRT), a projection pursuit regression model has been established for forecasting the peak value of blasting vibration velocity. The model is then used to predict the peak value of blasting vibration velocity in a tunnel excavation blasting in Beijing. In order to train and test the model, 15 sets of measured samples from the tunnel project are used as the input data. It is found that predicting results by projection pursuit regression model on the basis of the input data is much more reasonable than that predicted by the traditional Sodaovsk algorithm and modified Sodaovsk formula. The results show that the average predicting error of the projection pursuit regression model is 6.36%, which is closer to the measured values. Thus, the projection pursuit prediction model is a practical and reasonable tool for forecasting the peak value of blasting vibration velocity.

Źródło:

Archives of Civil Engineering; 2021, 67, 2; 653-673
1230-2945

Pojawia się w:

Archives of Civil Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 68.

Tytuł:

Inhibiting effect of citric acid on the floatability of serpentine activated by Cu(II) and Ni(II) ions

Autorzy:

Huang, Jun-wei
Zhang, Cheng-qiang

Powiązania:

https://bibliotekanauki.pl/articles/110224.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

copper ion
nickel ion
serpentine
floatation
activation
inhibiting

Opis:

The laboratory researches about the inhibiting effect of citric acid on the flotation performance of serpentine activated by Cu²⁺ and Ni²⁺ were carried out through micro flotation tests, zeta potential measurements, collector adsorption capacity measurements and solution chemistry analysis. The flotation results showed that Cu²⁺ and Ni²⁺ could remarkably activate the flotation of serpentine when the pH value was more than 6, however, this activation could be effectively weakened by adding citric acid. Zeta potential measurement and adsorption capacity measurement indicated that the presence of citric acid could prevent the adsorption of Cu²⁺ and Ni²⁺, and therefore reduce the adsorption amount of potassium butyl xanthate on serpentine surface. Furthermore, solution chemical analysis of the flotation system showed that copper hydroxide Cu(OH)_2(s) and the nickel hydroxide Ni(OH)2(s) were the main component in the pH range of 9 to 10, which adsorbed onto serpentine surface and made it activated; while the citric acid could effectively prohibit the formation of these metal hydroxide in slurry so as to inhibit the activation impact.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 4; 960-968
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 69.

Tytuł:

A single image deblurring approach based on a fractional order dark channel prior

Autorzy:

Yu, Xiaoyuan
Xie, Wei
Yu, Jinwei

Powiązania:

https://bibliotekanauki.pl/articles/2172119.pdf

Data publikacji:

2022

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

blind image deblurring
fractional order dark channel prior
nonconvex problem
obraz rozmyty
rząd ułamkowy
problem niewypukły

Opis:

The dark channel prior has been successfully applied to solve the blind deblurring problem on different scene images. Since the dark channel of the blurry-noise image is similar to that of the corresponding clear image, the sparsity of the dark channel is less effective for image blind deblurring. Inspired by the fact that a fractional order calculation can inhibit the noise and preserve the texture information of the image, a fractional order dark channel prior is proposed for image deblurring in this paper. It is appropriate for kernel estimation where input images and intermediate images are processed by using a fractional order dark channel prior. Furthermore, the non-convex problem is solved by the half-quadratic splitting method, and some metrics are used for deblurring image quality assessment. Finally, quantitative and qualitative experimental results show that the proposed method achieves state-of-the-art results on synthetic and real blurry images.

Źródło:

International Journal of Applied Mathematics and Computer Science; 2022, 32, 3; 441--454
1641-876X
2083-8492

Pojawia się w:

International Journal of Applied Mathematics and Computer Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 70.

Tytuł:

Prefabricated fractured rock under stepwise loading and unloading

Autorzy:

Zhang, Wei
Zhao, Tongbin
Yin, Yanchun

Powiązania:

https://bibliotekanauki.pl/articles/2086954.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej

Tematy:

fractured rock
graded loading and unloading
rock deformation
energy evolution
acoustic emission

Opis:

After the engineering rock mass has been affected by comprehensive effects of mining and disturbance, it experiences an input of external energy as well as dissipation and release of internal energy. From the viewpoint of energy, characteristics of rock failure are studied, and the law of rock unstable deformation and energy evolution is analyzed. The damage mechanism of rock is revealed easily. A gradual loading and unloading test of fractured rock is carried out to analyze deformation characteristics of the fractured rock during the load- -bearing process, and to study the law of energy dissipation and release under different load- ing and unloading stress levels. The results show that: (1) the load-bearing time, loading and unloading stress level, stress at crack initiation and peak stress of fractured rock gradually decrease with an increase in the number of cracks, and the descending speed decreases grad- ually with the increase in the number of cracks; (2) the strain at crack initiation and peak strain of the fractured rock increase gradually with an increase in the number of cracks, and the gathering speed decreases with the increase of the number of cracks; (3) the released strain energy and dissipation energy of fractured rock increase with an increase of loading and unloading stress levels, and the increasing rate gradually slows down; (4) the number of acoustic emission events is positively related to the degree of rock damage, and the increase in the number of cracks will prolong duration of the number of acoustic emission events. The results have a theoretical value for energy evolution and deformation damage of fractured rock masses, and also provide experimental experience to study the instability precursor information of rock materials from the viewpoint of energy.

Źródło:

Journal of Theoretical and Applied Mechanics; 2022, 60, 1; 167--179
1429-2955

Pojawia się w:

Journal of Theoretical and Applied Mechanics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 71.

Tytuł:

A simple linear algorithm for the connected domination problem in circular-arc graphs

Autorzy:

Hung, Ruo-Wei
Chang, Maw-Shang

Powiązania:

https://bibliotekanauki.pl/articles/744451.pdf

Data publikacji:

2004

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

graph algorithms
circular-arc graphs
connected dominating set
shortest path

Opis:

A connected dominating set of a graph G = (V,E) is a subset of vertices CD ⊆ V such that every vertex not in CD is adjacent to at least one vertex in CD, and the subgraph induced by CD is connected. We show that, given an arc family F with endpoints sorted, a minimum-cardinality connected dominating set of the circular-arc graph constructed from F can be computed in O(|F|) time.

Źródło:

Discussiones Mathematicae Graph Theory; 2004, 24, 1; 137-145
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 72.

Tytuł:

The reactive power and voltage control management strategy based on virtual reactance cloud control

Autorzy:

Zhang, Wei Min
Zhang, Yan Xia

Powiązania:

https://bibliotekanauki.pl/articles/949903.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

cloud model
graph theory
virtual reactance
voltage reactive power management

Opis:

The paper aims at the higher reactive power management complexity caused by the access of distributed power, and the problem such as large data exchange capacity, low accuracy of reactive power distribution, a slow convergence rate, and so on, may appear when the controlled objects are large. This paper proposes a reactive power and voltage control management strategy based on virtual reactance cloud control. The coupling between active power and reactive power in the system is effectively eliminated through the virtual reactance. At the same time, huge amounts of data are treated to parallel processing by using the cloud computing model parallel distributed processing, realize the uncertainty transformation between qualitative concept and quantitative value. The power distribution matrix is formed according to graph theory, and the accurate allocation of reactive power is realized by applying the cloud control model. Finally, the validity and rationality of this method are verified by testing a practical node system through simulation.

Źródło:

Archives of Electrical Engineering; 2020, 69, 4; 921-936
1427-4221
2300-2506

Pojawia się w:

Archives of Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 73.

Tytuł:

A Note on the Permanental Roots of Bipartite Graphs

Autorzy:

Zhang, Heping
Liu, Shunyi
Li, Wei

Powiązania:

https://bibliotekanauki.pl/articles/30147218.pdf

Data publikacji:

2014-02-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

permanent
permanental polynomial
permanental roots

Opis:

It is well-known that any graph has all real eigenvalues and a graph is bipartite if and only if its spectrum is symmetric with respect to the origin. We are interested in finding whether the permanental roots of a bipartite graph G have symmetric property as the spectrum of G. In this note, we show that the permanental roots of bipartite graphs are symmetric with respect to the real and imaginary axes. Furthermore, we prove that any graph has no negative real permanental root, and any graph containing at least one edge has complex permanental roots.

Źródło:

Discussiones Mathematicae Graph Theory; 2014, 34, 1; 49-56
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 74.

Tytuł:

Research on resilience model of UAV swarm based on complex network dynamics

Autorzy:

Wei, Kunlun
Zhang, Tao
Chuanfu, Zhang

Powiązania:

https://bibliotekanauki.pl/articles/28328275.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN

Tematy:

UAV swarm
resilience
SIS
system dynamics
topology

Opis:

Unmanned Aerial Vehicle (UAV) swarms are utilized in various missions and operated within an open environment that is prone to disruptions. The resilience of UAV swarms, an important requirement, mainly revolves around ensuring stable and uninterrupted operations. Malicious attacks can implement the adverse impacts of potential threats through swarm communication links. In this context, the SIS (Susceptible → Infected → Susceptible) method is suitable for describing the information transmission within UAV swarms. An enhanced resilience model of the UAV swarm is proposed in this study, which incorporates the factors of self-dynamics, dynamics of topology, dynamics of information transmission, and SIS into the complex network model. Self-dynamics refer to the internal dynamics of the drones. In this paper, dynamics of topology consist of three factors: the varying distance between drones, the incoming degrees of each drone, and the number of communication types between drones. Lastly, dynamics of information transmission are characterized by SIS. The model proposed in this paper has the capability to effectively capture changes in the network topology as well as the dynamics of the system, which are significant contributors to the loss of resilience. And then, the average number of susceptible drones is utilized as the metric to evaluate the resilience of the swarm. Furthermore, an experiment is conducted where a UAV swarm successfully carries out a surveillance mission to demonstrate the advantages of our proposed method. The proposed model not only enables the support of mission planning but also facilitates the design enhancements of UAV swarms.

Źródło:

Eksploatacja i Niezawodność; 2023, 25, 4; art. no. 173125
1507-2711

Pojawia się w:

Eksploatacja i Niezawodność

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 75.

Tytuł:

The Edit Distance Function of Some Graphs

Autorzy:

Hu, Yumei
Shi, Yongtang
Wei, Yarong

Powiązania:

https://bibliotekanauki.pl/articles/31518790.pdf

Data publikacji:

2020-08-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

edit distance
colored regularity graphs
hereditary property
clique spectrum

Opis:

The edit distance function of a hereditary property $ℋ$ is the asymptotically largest edit distance between a graph of density $p ∈ [0, 1]$ and $ℋ$. Denote by $P_n$ and $C_n$ the path graph of order $n$ and the cycle graph of order $n$, respectively. Let \(C_{2n}^\ast\) be the cycle graph $C_{2n}$ with a diagonal, and \(\widetilde{C_n}\) be the graph with vertex set ${v_0, v_1, . . ., v_{n−1}}$ and \(E(\widetilde{C_n})=E(C_n)∪{v_0v_2}\). Marchant and Thomason determined the edit distance function of \(C_6^\ast\). Peck studied the edit distance function of $C_n$, while Berikkyzy et al. studied the edit distance of powers of cycles. In this paper, by using the methods of Peck and Martin, we determine the edit distance function of \(C_8^\ast\), \(\widetilde{C_n}\) and $P_n$, respectively.

Źródło:

Discussiones Mathematicae Graph Theory; 2020, 40, 3; 807-821
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 76.

Tytuł:

Spherical fuzzy power partitioned Maclaurin Symmetric Mean Operators and their application in Multiple Attribute Group Decision Making

Autorzy:

Zhang, Huiyuan
Cai, Qiang
Wei, Guiwu

Powiązania:

https://bibliotekanauki.pl/articles/27312003.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Czasopisma i Monografie PAN

Tematy:

spherical fuzzy sets
partitioned Maclaurin symmetric mean operator
power average operator
multiple attribute group decision making

Opis:

Spherical fuzzy sets (SFSs) provide more free space for decision makers (DMs) to express preference information from four aspects: approval, objection, abstention and refusal. The partitioned Maclaurin symmetric mean (PMSM) operator is an effective information fusion tool, which can fully capture the interrelationships among any multiple attributes in the same block whereas attributes in different block are unrelated. Therefore, in this paper, we first extend PMSM operator to spherical fuzzy environment and develop spherical fuzzy PMSM (SFPMSM) operator as well as spherical fuzzy weighted PMSM (SFWPMSM) operator. Meanwhile, we discuss some properties and special cases of these two operators. To diminish the impact of extreme evaluation values on decision-making results, then we integrate power average (PA) operator and PMSM operator to further develop spherical fuzzy power PMSM (SFPPMSM) operator and spherical fuzzy weighted power PMSM (SFWPPMSM) operator and also investigate their desirable properties. Subsequently, a new multiple attribute group decision making (MAGDM) method is established based on SFWPPMSM operator under spherical fuzzy environment. Finally, two numerical examples are used to illustrate the proposed method, and comparative analysis with the existing methods to further testy the validity and superiority of the proposed method.

Źródło:

Archives of Control Sciences; 2023, 33, 1; 179--238
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 77.

Tytuł:

Nonmetrizable topological dynamical characterization of central sets

Autorzy:

Shi, Hong-Ting
Yang, Hong-Wei

Powiązania:

https://bibliotekanauki.pl/articles/1205493.pdf

Data publikacji:

1996

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Tematy:

topological dynamical system
enveloping semigroup
uniform recurrence
proximality
minimal idempotent
central subset

Opis:

Without the restriction of metrizability, topological dynamical systems $(X,⟨ T_s⟩_{s ∈ G})$ are defined and uniform recurrence and proximality are studied. Some well known results are generalized and some new results are obtained. In particular, a topological dynamical characterization of central sets in an arbitrary semigroup (G,+) is given and shown to be equivalent to the usual algebraic characterization.

Źródło:

Fundamenta Mathematicae; 1996, 150, 1; 1-9
0016-2736

Pojawia się w:

Fundamenta Mathematicae

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 78.

Tytuł:

Properties and pre-processing strategies to enhance the discovery of functional dependency with degree of satisfaction

Autorzy:

Wei, Q.
Chen, G.
Zhou, X.

Powiązania:

https://bibliotekanauki.pl/articles/970954.pdf

Data publikacji:

2009

Wydawca:

Polska Akademia Nauk. Instytut Badań Systemowych PAN

Tematy:

functional dependency
incomplete data
degree of distinctness
data mining

Opis:

Functional dependency with degree of satisfaction (FDd) is an extended notion in data modeling, and reflects a type of integrity constraints and business rules on attributes, mainly for massive databases, in which incomplete data such as noise, null and imprecision may exist. While existing approaches are considered effective in general, attempts for further improvement in efficiency are deemed meaningful and desirable as far as knowledge discovery is concerned. This paper focuses on discovering (FDd)s as a form of useful semantic knowledge, aiming at providing an enhancement to the FDd mining process in a more efficient manner. In doing so, properties of FDd are in-depth investigated along with a measure for degree of distinctness. Subsequently, a number of optimization strategies are developed for pre-processing, which are then incorporated into the mining process, giving rise to an enhanced approach for mining functional dependency with degree of satisfaction, namely e-MFDD. Finally, data experiments revealed that e-MFDD significantly outperformed the original approach without pre-processing.

Źródło:

Control and Cybernetics; 2009, 38, 2; 367-394
0324-8569

Pojawia się w:

Control and Cybernetics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 79.

Tytuł:

Bounds for the singular values of smooth kernels

Autorzy:

Chang, Ching-Hua
Ha, Chung-Wei

Powiązania:

https://bibliotekanauki.pl/articles/966116.pdf

Data publikacji:

1998

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Źródło:

Colloquium Mathematicum; 1998, 78, 2; 319-324
0010-1354

Pojawia się w:

Colloquium Mathematicum

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 80.

Tytuł:

Investigation of the Dynamic Characteristics and Machining Stability of a Bi-rotary Milling Tool

Autorzy:

Hung, Jui-Pin
Lin, Wei-Zhu

Powiązania:

https://bibliotekanauki.pl/articles/103262.pdf

Data publikacji:

2019

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

bi-rotary milling head
dynamic characteristics
five axis milling machine
machining stability
głowica frezarska dwuobrotowa
właściwości dynamiczne
frezarka pięcioosiowa
stabilność obróbki

Opis:

Bi-rotary milling head is the primary component of multiple-axis machine tool toward the multiply machining operation. The machining performance is greatly related to the structure characteristics and positioning precisions of the swivel head. This study was aimed at developing a bi-rotary milling head module, which is composed of a direct drive motor, cross roller bearings and motorized spindle unit. In order to evaluate the machining stability at the design phase, the dynamic characteristics of the rotary milling were first analyzed with finite element method. Especially, the variations of the dynamic characteristics of the spindle tool with the changing of the titling configuration of swivel axis were examined. In order to consider the accurate presentation of a spindle tool system and swivel mechanism, the bearings in the rolling components were also included in the finite element model and simulated with surface contact elements with adequate contact stiffness. The dynamic frequency response function of the spindle tool at different swinging positions were predicted for comparisons, which were further used to calculate the machining stability based on the machining mechanics. The current results show that the feeding direction and swinging positions of rotary milling head have a significant influence on the dynamic characteristics and machining ability of the spindle tool. The variations of the cutting depth with the swinging of A axis fall in the range of 11% to 40%, depending on the feeding direction and swinging angle. The analysis results are expected to clearly demonstrate the variation of the machining performance of the spindle tool under different milling configurations. The devised model and modeling approach can be applied to develop a five axis milling machine with desired dynamic and machining performance.

Źródło:

Advances in Science and Technology. Research Journal; 2019, 13, 1; 14-22
2299-8624

Pojawia się w:

Advances in Science and Technology. Research Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 81.

Tytuł:

Reliability analysis and optimization of equal load-sharing k-out-of-n phased-mission systems
Analiza niezawodności oraz optymalizacja systemów fazowych typu „k z n” o równym podziale obciążenia elementów składowych

Autorzy:

Jiakai, C.
Yan, H.
Wei, W.

Powiązania:

https://bibliotekanauki.pl/articles/302211.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN

Tematy:

Applicable Failure Path (AFP)
genetic algorithm (GA)
Phased-mission System (PMS)
Tampered Failure Rate (TFR) Model
Universal Generating Function (UGF)
Właściwa ścieżka uszkodzeń (AFP)
algorytm genetyczny (GA)
system fazowy (o zadaniach okresowych) (PMS)
Model manipulowanej intensywności uszkodzeń (TFR)
Uniwersalna funkcja tworząca (UGF)

Opis:

There are many studies on k-out-of-n systems, load-sharing systems (LSS) and phased-mission systems (PMS); however, little attention has been given to load-sharing k-out-of-n systems with phased-mission requirements. This paper considers equal loadsharing k-out-of-n phased-mission systems with identical components. A method is proposed for the phased-mission reliability analysis of the studied systems based on the applicable failure path (AFP). A modified universal generating function (UGF) is used in the AFP-searching algorithm because of its efficiency. The tampered failure rate load-sharing model for the exactly k-out-of-n: F system is introduced and integrated into the method. With the TFR model, the systems with arbitrary load-dependent component failure distributions can be analyzed. According to the time and space complexity analysis, this method is particularly suitable for systems with small k-values. Two applications of the method are introduced in this paper. 1) A genetic algorithm (GA) based on the method is presented to solve the operational scheduling problem of systems with independent submissions. Two theorems are provided to solve the problem under some special conditions. 2) The method is used to select the optimal number of components to make the system reliable and robust.
Istnieje wiele badań na temat systemów typu „k z n”, systemów z podziałem obciążenia (load-sharing systems, LSS) oraz systemów fazowych (tj. systemów o zadaniach okresowych) (phased-missionsystems, PMS); jak dotąd mało uwagi poświęcono jednak systemom typu „k z n” z podziałem obciążenia wymagającym realizacji różnych zadań w różnych przedziałach czasowych. Niniejszy artykuł omawia systemy fazowe typu „k z n” o równym podziale obciążenia przypadającego na identyczne elementy składowe. Zaproponowano metodę analizy niezawodności badanych systemów w poszczególnych fazach ich eksploatacji opartą na pojęciu właściwej ścieżki uszkodzeń (applicablefailurepath, AFP). W algorytmie wyszukującym AFP zastosowano zmodyfikowaną uniwersalną funkcję tworzącą (universal generating function, UGF), która cechuje się dużą wydajnością. Wprowadzono model manipulowanej intensywności uszkodzeń (tamperedfailurerate, TFR) elementów o równym podziale obciążenia dla systemu, w którym liczba uszkodzeń wynosi dokładnie k z n. Model ten włączono do proponowanej metody analizy niezawodności. Przy pomocy modelu TFR można analizować systemy o dowolnych rozkładach uszkodzeń części składowych, gdzie uszkodzenia są zależne od obciążenia. Zgodnie z analizą złożoności czasowej i przestrzennej, metoda ta jest szczególnie przydatna do modelowania układów o małych wartościach k. W pracy przedstawiono dwa zastosowania metody. 1) oparty o omawianą metodę algorytm genetyczny (GA) do rozwiązywania problemu harmonogramowania prac w systemach z niezależnymi podzadaniami. Sformułowano dwa twierdzenia pozwalające na rozwiązanie problemu w pewnych szczególnych warunkach. 2) Wybór optymalnej liczby elementów składowych pozwalającej na zachowanie niezawodności i odporności systemu.

Źródło:

Eksploatacja i Niezawodność; 2015, 17, 2; 250-259
1507-2711

Pojawia się w:

Eksploatacja i Niezawodność

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 82.

Tytuł:

Impulse Noise Suppression Based on Power Iterative ICA in Power Line Communication

Autorzy:

Zhang, Wei
Luo, Zhongqiang
Xiong, Xingzhong

Powiązania:

https://bibliotekanauki.pl/articles/226439.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

power line communication(PLC)
orthogonal frequency division multiplexing(OFDM) signal
independent component analysis(ICA)
impulse noise

Opis:

To overcome the detrimental influence of impulse noise in power line communication and the trap of scarce prior information in traditional noise suppression schemes , a power iteration based fast independent component analysis (PowerICA) based noise suppression scheme is designed in this paper. Firstly, the pseudo-observation signal is constructed by weighted processing so that single-channel blind separation model is transformed into the multi-channel observed model. Then the proposed blind separation algorithm is used to separate noise and source signals. Finally, the effectiveness of the proposed algorithm is verified by experiment simulation. Experiment results show that the proposed algorithm has better separation effect, more stable separation and less implementation time than that of FastICA algorithm, which also improves the real-time performance of communication signal processing.

Źródło:

International Journal of Electronics and Telecommunications; 2019, 65, 4; 651-656
2300-1933

Pojawia się w:

International Journal of Electronics and Telecommunications

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 83.

Tytuł:

On controllability for fractional differential inclusions in Banach spaces

Autorzy:

Wang, J.
Li, X.
Wei, W.

Powiązania:

https://bibliotekanauki.pl/articles/256046.pdf

Data publikacji:

2012

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

controllability
fractional differential inclusions
Bohnenblust-Karlin's fixed point theorem

Opis:

In this paper, we investigate the controllability for systems governed by fractional differential inclusions in Banach spaces. The techniques rely on fractional calculus, multivalue mapping on a bounded set and Bohnenblust-Karlin's fixed point theorem.

Źródło:

Opuscula Mathematica; 2012, 32, 2; 341-356
1232-9274
2300-6919

Pojawia się w:

Opuscula Mathematica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 84.

Tytuł:

Research on the Spin-Hamiltonian Parameters and Local Structure for the Tetragonal $Mo^{5+}$ Centers in $CaWO_{4}$ Crystal

Autorzy:

Mei, Y.
Zheng, W.
Wei, C.

Powiązania:

https://bibliotekanauki.pl/articles/1377649.pdf

Data publikacji:

2014-12

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

76.30.He
71.70.Ch
75.10.Dg

Opis:

The spin-Hamiltonian parameters (g factors $g_{∥}$, $g_{⊥}$ and hyperfine structure constants $A_{∥}(A)$, $A_{⊥}(A)$, $A_{∥}(B)$ and $A_{⊥}(B)$, A(A) and A(B) belonging to isotopes $\text{}^{95}Mo^{5+}$ and $\text{}^{97}Mo^{5+})$ of $Mo^{5+}$ ion at the tetragonally-compressed tetrahedral $W^{6+}$ site in $CaWO_4$ crystal are calculated from the high-order perturbation formulae based on the two-mechanism model, where besides the contributions to spin-Hamiltonian parameters due to the crystal-field mechanism concerning the crystal-field excited states in the extensively-applied crystal-field theory, those due to charge-transfer mechanism concerning charge-transfer excited states (which are omitted in crystal-field theory) are included. The calculated results are in reasonable agreement with the experimental values. The calculations show that for the high-valence state $d^{n}$ ions (e. g., $Mo^{5+}$ considered) in crystals, the contributions due to charge-transfer mechanism should be taken into account in the studies of spin-Hamiltonian parameters. The local structure of $Mo^{5+}$ center in $CaWO_4$ crystal due to the impurity-induced local lattice relaxation is estimated from the calculations. The results are discussed.

Źródło:

Acta Physica Polonica A; 2014, 126, 6; 1275-1279
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 85.

Tytuł:

On the asymptotic behavior of solutions of second order parabolic partial differential equations

Autorzy:

Lian, Wei-Cheng
Yeh, Cheh-Chih

Powiązania:

https://bibliotekanauki.pl/articles/1311133.pdf

Data publikacji:

1996

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Tematy:

asymptotic behavior
second order partial differential equation
maximum principles

Opis:

We consider the second order parabolic partial differential equation $∑^n_{i,j=1} a_{ij}(x,t) u_{x_{i}x_{j}} + ∑^n_{i=1} b_i(x,t) u_{x_i} + c(x,t)u - u_t = 0$. Sufficient conditions are given under which every solution of the above equation must decay or tend to infinity as |x|→ ∞. A sufficient condition is also given under which every solution of a system of the form $L^α[u^α] + ∑_{β=1}^N c^{αβ}(x,t) u^β = f^α(x,t)$, where $L^α[u] ≡ ∑^n_{i,j=1} a_{ij}^α(x,t) u_{x_{i}x_{j}} + ∑^n_{i=1} b_i^α(x,t) u_{x_i} - u_t$, must decay as t → ∞.

Źródło:

Annales Polonici Mathematici; 1996, 63, 3; 223-234
0066-2216

Pojawia się w:

Annales Polonici Mathematici

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 86.

Tytuł:

On sums of distinct representatives

Autorzy:

Cao, Hui-Qin
Sun, Zhi-Wei

Powiązania:

https://bibliotekanauki.pl/articles/1390655.pdf

Data publikacji:

1998

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Źródło:

Acta Arithmetica; 1998-1999, 87, 2; 159-169
0065-1036

Pojawia się w:

Acta Arithmetica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 87.

Tytuł:

The convolution equation of Choquet and Deny on semigroups

Autorzy:

Lau, Ka-Sing
Zeng, Wei-Bin

Powiązania:

https://bibliotekanauki.pl/articles/1389389.pdf

Data publikacji:

1990

Wydawca:

Polska Akademia Nauk. Instytut Matematyczny PAN

Źródło:

Studia Mathematica; 1990, 97, 2; 115-135
0039-3223

Pojawia się w:

Studia Mathematica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 88.

Tytuł:

The role of ‘familiarity’ in Mandarin Chinese speakers’ metapragmatic evaluations of Australian conversational humour

Autorzy:

Chang, Wei-Lin Melody
Sinkeviciute, Valeria

Powiązania:

https://bibliotekanauki.pl/articles/2098500.pdf

Data publikacji:

2022-08-22

Wydawca:

Krakowskie Towarzystwo TERTIUM

Tematy:

familiarity
Australian conversational humour
Mandarin Chinese
metapragmatics

Opis:

Although research on humorous practices of Anglo-Australians has received much attention, the understanding of those practices by members of various multilingual communities in Australia has not been much studied. In this paper, we look at metapragmatic comments on concept familiarity in relation to conversational humour, particularly focusing on Mandarin Chinese speakers’ perceptions of conversational humour in Australian English. In order to explore what role ‘familiarity’ plays in (inter-)cultural conceptualisation of humour, we analyse interview data where speakers of Mandarin Chinese provide their metapragmatic comments on humorous exchanges among Australians. Drawing on approximately 8.2 hours of interview data elicited by a segment from the reality television gameshow Big Brother 2012, i.e., a teasing sequence between two acquainted persons, it is suggested that the concept of familiarity is the one most frequently alluded to in the theme of how participants ‘draw the boundary’ between intimates and acquaintances. From the analysis it emerged that Mandarin Chinese speakers’ evaluations of humorous exchanges in Australian English are driven by their culturally-informed perceptions that are conceptualised through various emic notions, e.g. guanxi (‘interpersonal relationship’), various labels for classifying different relational distance, and qiji (‘opportune moment’). The findings of this exploratory paper suggest that the role of ‘familiarity’ in relation to humour is crucial in the perception of appropriateness of humorous practices in interaction, especially across cultures.

Źródło:

The European Journal of Humour Research; 2022, 10, 2; 74-95
2307-700X

Pojawia się w:

The European Journal of Humour Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 89.

Tytuł:

Academic and linguistic gains during a semester long study abroad: A cohort case study

Autorzy:

Cai, Wei
Li, Xiangrong
Liu, Meihua

Powiązania:

https://bibliotekanauki.pl/articles/780741.pdf

Data publikacji:

2013-12

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

gain
exchange program
academic
linguistic

Opis:

The present case study investigated university students’ academic and linguistic gains during a semester-long exchange program abroad. Thirty three third-year English majors from a Chinese university answered a battery of questionnaires and 13 of them participated in semi-structured interviews both prior to and after the program. Analyses of the data showed that the participants gained greatly from the exchange program both academically and linguistically. Based on the findings, some implications about exchange programs are discussed.

Źródło:

Studies in Second Language Learning and Teaching; 2013, 3, 4; 505-522
2083-5205
2084-1965

Pojawia się w:

Studies in Second Language Learning and Teaching

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 90.

Tytuł:

Multiple Attribute Decision Making method based on intuitionistic Dombi operators and its application in mutual fund evaluation

Autorzy:

Jana, Chiranjibe
Pal, Madhumangal
Wei, Guiwu

Powiązania:

https://bibliotekanauki.pl/articles/229946.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

intuitionistic fuzzy elements
Dombi operations
averaging aggregation operators
geometric aggregation operators
multiple attribute decision making

Opis:

In this paper, a new set of intuitionistic fuzzy aggregation operators have been introduced under the environment of intuitionistic fuzzy sets (IFSs). For this, firstly focused on some existing aggregation operators and then new operational rules known as Dombi operation have been proposed which make the advancement of flexibility behavior with the parameter. Based on Dombi operation laws, some new averaging and geometric aggregation operators namely, intuitionistic fuzzy Dombi weighted averaging, ordered weighted averaging and hybrid weighted averaging operator, classified as IFDWA, IFDOWA and IFDHWA operators respectively and intuitionistic fuzzy Dombi geometric, ordered weighted geometric and hybrid weighted geometric operators, labeled as IFDWG, IFDOWG and IFDHWG operators respectively have been proposed. Further,some properties such as idempotency, boundedness, monotonicity and commutative are investigated. Finally, a multi-attribute decision-making model has been developed for the proposed operators to select the best mutual fund for investment. The execution of the comparative study has been examined with the existing operators in this environment.

Źródło:

Archives of Control Sciences; 2020, 30, 3; 437-470
1230-2384

Pojawia się w:

Archives of Control Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 91.

Tytuł:

The relationships among brand experience, brand resonance and brand loyalty in experiential marketing: Evidence from smart phone in Taiwan

Autorzy:

Shieh, Hwai-Shuh
Lai, Wei-Hsun

Powiązania:

https://bibliotekanauki.pl/articles/522397.pdf

Data publikacji:

2017

Wydawca:

Uniwersytet Ekonomiczny w Katowicach

Tematy:

Brand experience
Brand loyalty
Brand resonance
Experiential marketing

Opis:

Aim/purpose – The study aims to understand the contribution of the experiential events how to influence the brand loyalty while the consumer synchronized with brand under the brand resonance. Design/methodology/approach – The study combines Schmitt’s five distinct experience ‘modules’ with the SEM method to explore the relationship among these five experience dimensions and brand experience, and applies the Keller’s CBBE model to explore whether the experiential events that consumer participated could help the company build brand resonance through the brand experience delivering in the event. The study applies convenient sampling method and collects data through online questionnaire platform from April 12 to April 26, 2015. Deleting invalid or incomplete questionnaires, the study gets 204 valid samples from the total 229 respondents. Findings – The findings indicate that these five strategic experiences dimensions are positively related to the brand experience; the positive relationships among brand experience, brand resonance, and brand loyalty also exist. Research implications/limitations – The results of the study have some strategic implications for marketing practice. The findings point out that event marketing could be considered as an effective tool to enlarge customer base and to build brand loyalty. In the real world, the more event marketing adopts; the stronger brand experience is and the higher the effect on brand loyalty will be. Nevertheless, the study cannot provide specific constructive suggestion: how to design events to stimulate and create a strong, memorable brand experience. Originality/value/contribution – Few studies examine the effect of each brand experience dimensions on brand relationship, and this study fills this gap.

Źródło:

Journal of Economics and Management; 2017, 28; 57-73
1732-1948

Pojawia się w:

Journal of Economics and Management

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 92.

Tytuł:

Toughness, Forbidden Subgraphs, and Hamilton-Connected Graphs

Autorzy:

Zheng, Wei
Broersma, Hajo
Wang, Ligong

Powiązania:

https://bibliotekanauki.pl/articles/32361744.pdf

Data publikacji:

2022-02-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

toughness
forbidden subgraph
Hamilton-connected graph
Hamiltonicity

Opis:

A graph G is called Hamilton-connected if for every pair of distinct vertices {u, v} of G there exists a Hamilton path in G that connects u and v. A graph G is said to be t-tough if t·ω(G − X) ≤ |X| for all X ⊆ V (G) with ω(G − X) > 1. The toughness of G, denoted τ (G), is the maximum value of t such that G is t-tough (taking τ (Kn) = ∞ for all n ≥ 1). It is known that a Hamilton-connected graph G has toughness τ (G) > 1, but that the reverse statement does not hold in general. In this paper, we investigate all possible forbidden subgraphs H such that every H-free graph G with τ (G) > 1 is Hamilton-connected. We find that the results are completely analogous to the Hamiltonian case: every graph H such that any 1-tough H-free graph is Hamiltonian also ensures that every H-free graph with toughness larger than one is Hamilton-connected. And similarly, there is no other forbidden subgraph having this property, except possibly for the graph K₁ ∪ P₄ itself. We leave this as an open case.

Źródło:

Discussiones Mathematicae Graph Theory; 2022, 42, 1; 187-196
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 93.

Tytuł:

On Implicit Heavy Subgraphs and Hamiltonicity of 2-Connected Graphs

Autorzy:

Zheng, Wei
Wideł, Wojciech
Wang, Ligong

Powiązania:

https://bibliotekanauki.pl/articles/32083821.pdf

Data publikacji:

2021-02-01

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

implicit degree
implicit o-heavy
implicit f-heavy
implicit c-heavy
Hamilton cycle

Opis:

A graph G of order n is implicit claw-heavy if in every induced copy of K1,3 in G there are two non-adjacent vertices with sum of their implicit degrees at least n. We study various implicit degree conditions (including, but not limiting to, Ore- and Fan-type conditions) imposing of which on specific induced subgraphs of a 2-connected implicit claw-heavy graph ensures its Hamiltonicity. In particular, we improve a recent result of [X. Huang, Implicit degree condition for Hamiltonicity of 2-heavy graphs, Discrete Appl. Math. 219 (2017) 126–131] and complete the characterizations of pairs of o-heavy and f-heavy subgraphs for Hamiltonicity of 2-connected graphs.

Źródło:

Discussiones Mathematicae Graph Theory; 2021, 41, 1; 167-181
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 94.

Tytuł:

Electronic Structure and Magnetic Exchange Interaction in Fe₂NiAs Compound

Autorzy:

Wei, Xiao-Ping
Zhang, Ya-Ling
Sun, Xiao-Wei
Song, Ting
Zhu, Xing-Feng

Powiązania:

https://bibliotekanauki.pl/articles/1033418.pdf

Data publikacji:

2017-10

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

71.20.Lp
71.20.Gj
71.20.-b
77.80.B-

Opis:

Using the spin-polarized relativistic Korringa-Kohn-Rostoker method, we study the electronic and magnetic properties of Fe₂NiAs compound with the Hg₂CuTi structure. Electronic calculations reveal the d-d orbital hybridization taking an important role in the compound. The calculated magnetic moments, which contain the spin and orbital moments, are primarily carried by Fe atoms located in A and B sites. The orbital moment of Fe₂NiAs system is rather small due to the cause of orbital quenching, implying a weak spin-orbit coupling. Simultaneously, we also study the influence of lattice constant on the magnetic moment, it is found that both spin and orbital moments are sensitive to the changes of lattice constants, i.e., the moments become larger as the expansion of lattice constant, indicating the enhancement of spin-orbit coupling effect. In addition, we investigate the magnetic interactions between the constituents to obtain the Heisenberg exchange coupling parameters. It is noted that the interactions are dominated by a strong exchange between Fe atoms. Finally, we acquire the Curie temperatures of Fe₂NiAs compound under different lattice constants by using mean field approximation.

Źródło:

Acta Physica Polonica A; 2017, 132, 4; 1320-1324
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 95.

Tytuł:

Vehicle emission computation through microscopic traffic simulation calibrated using genetic algorithm

Autorzy:

Wei, Yun
Yu, Ying
Xu, Lifeng
Huang, Wei
Guo, Jianhua
Wan, Ying
Cao, Jinde

Powiązania:

https://bibliotekanauki.pl/articles/91529.pdf

Data publikacji:

2019

Wydawca:

Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych

Tematy:

environment protection
microscopic traffic simulation
genetic algorithm
IVE model
emission evaluation

Opis:

Vehicle emission calculation is critical for evaluating motor vehicle related environmental protection policies. Currently, many studies calculate vehicle emissions from integrating the microscopic traffic simulation model and the vehicle emission model. However, conventionally vehicle emission models are presented as a stand-alone software, requiring a laborious processing of the simulated second-by-second vehicle activity data. This is inefficient, in particular, when multiple runs of vehicle emission calculations are needed. Therefore, an integrated vehicle emission computation system is proposed around a microscopic traffic simulation model. In doing so, the relational database technique is used to store the simulated traffic activity data, and these data are used in emission computation through a built-in emission computation module developed based on the IVE model. In order to ensure the validity of the simulated vehicle activity data, the simulation model is calibrated using the genetic algorithm. The proposed system was implemented for a central urban region of Nanjing city. Hourly vehicle emissions of three types of vehicles were computed using the proposed system for the afternoon peak period, and the results were compared with those computed directly from the IVE software with a trivial difference in the results from the proposed system and the IVE software, indicating the validity of the proposed system. In addition, it was found for the study region that passenger cars are critical for controlling CO, buses are critical for controlling CO and VOC, and trucks are critical for controlling NOx and CO2. Future work is to test the proposed system in more traffic management and control strategies, and more vehicle emission models are to be incorporated in the system.

Źródło:

Journal of Artificial Intelligence and Soft Computing Research; 2019, 9, 1; 67-80
2083-2567
2449-6499

Pojawia się w:

Journal of Artificial Intelligence and Soft Computing Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 96.

Tytuł:

Experimental study on the joint application of innovative techniques for the improved drivage of roadways at depths over 1 km: a case study

Autorzy:

Zhang, Wei
Tang, Jia-Jia
Zhang, Dong-Sheng
Zhang, Lei
Sun, Yuyan
Zhang, Wei-Sheng

Powiązania:

https://bibliotekanauki.pl/articles/219958.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

pomiar naprężeń
wiercenie
piaskowanie
odkształcenie
roadways at depth over 1 km
in-situ stress measurements
efficient drivage
rapid drilling and blasting
deformation control of SRR
industrial test

Opis:

Finding effective ways to efficiently drive roadways at depths over 1 km has become a hotspot research issue in the field of mining engineering. In this study, based on the local geological conditions in the Xinwen Mining Area (XMA) of China, in-situ stress measurements were conducted in 15 representative deep roadways, which revealed the overall tectonic stress field pattern, with the domination of the horizontal principal stresses. The latter values reached as high as 42.19 MPa, posing a significant challenge to the drivage work. Given this, a comprehensive set of innovative techniques for efficiently driving roadways at depths over 1 km was developed, including (i) controlled blasting with bidirectional energy focusing for directional fracturing, (ii) controlled blasting with multidirectional energy distribution for efficient rock fragmentation, (iii) wedge-cylinder duplex cuts centered on double empty holes, and (iv) high-strength supports for deep roadways. The proposed set of techniques was successfully implemented in the –1010 west rock roadway (WRR) drivage at the Huafeng Coal Mine (HCM). The improved drivage efficiency was characterized by the average and maximum monthly advances of 125 and 151 m, respectively. The roadway cross-sectional shape accuracy was also significantly improved, with the overbreak and underbreak zones being less than 50 mm. The deformation in the surrounding rock of roadway (SRR) was adequately controlled, thus avoiding repeated maintenance and repair. The relevant research results can provide technical guidance for efficient drivage of roadways at depths over 1 km in other mining areas in China and worldwide.

Źródło:

Archives of Mining Sciences; 2020, 65, 1; 159-178
0860-7001

Pojawia się w:

Archives of Mining Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 97.

Tytuł:

Application of a biconical dense medium cyclone to pre-treat a low-grade Pb-Zn sulfide ore

Autorzy:

Jian, Sheng
Sun, Wei
Zheng, Yong-xing

Powiązania:

https://bibliotekanauki.pl/articles/110536.pdf

Data publikacji:

2019

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

Pb-Zn sulfide ore
Low-grade ore
Pretreatment
Biconical dense medium cyclone

Opis:

A biconical dense medium cyclone (BDMC) was applied to reject the gangue from a low-grade Pb-Zn sulfide ore for the first time. Based on mineralogy and heavy liquid separation tests, it was found that the rejection of gangue by the BDMC prior to grinding and flotation was promising. The results revealed that the particle size clearly affected the heavy liquid separation process. The effects of several parameters, such as medium specific gravity (SG), spigot diameter, tilt angle, cone angle and medium/ore mass ratio, on the yield of floats and on the metal recoveries in the floats were examined and the optimal parameters were determined. The results showed that 51.22% of floats were obtained with a lead recovery of 7.92% and a zinc recovery of 12.50%. The extended tests were further carried out with the BDMC being capable of throughputs about 3 t/h, which verified the results obtained in the laboratory experiments. The use of this equipment to pre-treat the refractory ore is promising.

Źródło:

Physicochemical Problems of Mineral Processing; 2019, 55, 4; 981-990
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 98.

Tytuł:

Global existence and blow up of solution for semi-linear hyperbolic equation with the product of logarithmic and power-type nonlinearity

Autorzy:

Lian, Wei
Ahmed, Md Salik
Xu, Runzhang

Powiązania:

https://bibliotekanauki.pl/articles/255702.pdf

Data publikacji:

2020

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

global existence
blow-up
logarithmic and polynomial nonlinearity
potential well

Opis:

In this paper we consider the semilinear wave equation with the multiplication of logarithmic and polynomial nonlinearities. We establish the global existence and finite time blow up of solutions at three different energy levels (E(0) < d, E(0) = d and E(0) > 0) using potential well method. The results in this article shed some light on using potential wells to classify the solutions of the semilinear wave equation with the product of polynomial and logarithmic nonlinearity.

Źródło:

Opuscula Mathematica; 2020, 40, 1; 111-130
1232-9274
2300-6919

Pojawia się w:

Opuscula Mathematica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 99.

Tytuł:

Adjacent vertex distinguishing edge-colorings of planar graphs with girth at least six

Autorzy:

Bu, Yuehua
Lih, Ko-Wei
Wang, Weifan

Powiązania:

https://bibliotekanauki.pl/articles/743930.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii

Tematy:

edge-coloring
vertex-distinguishing
planar graph

Opis:

An adjacent vertex distinguishing edge-coloring of a graph G is a proper edge-coloring o G such that any pair of adjacent vertices are incident to distinct sets of colors. The minimum number of colors required for an adjacent vertex distinguishing edge-coloring of G is denoted by χ'ₐ(G). We prove that χ'ₐ(G) is at most the maximum degree plus 2 if G is a planar graph without isolated edges whose girth is at least 6. This gives new evidence to a conjecture proposed in [Z. Zhang, L. Liu, and J. Wang, Adjacent strong edge coloring of graphs, Appl. Math. Lett., 15 (2002) 623-626.]

Źródło:

Discussiones Mathematicae Graph Theory; 2011, 31, 3; 429-439
2083-5892

Pojawia się w:

Discussiones Mathematicae Graph Theory

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 100.

Tytuł:

Comparative evaluation of wear behavior of tribo-pairs in reciprocating pumps with multiple materials under different conditions

Autorzy:

Li, Ran
Wei, Wenshu
Liu, Hao
Wang, Dalong
Ye, Jian
Li, Shoubin
Wang, Wei
Wu, Huigang

Powiązania:

https://bibliotekanauki.pl/articles/2200870.pdf

Data publikacji:

2023

Wydawca:

Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej

Tematy:

reciprocating pump
tribo-pair
cast iron pin
wear behavior
wear resistance

Opis:

In the study of wear behavior of tribo-pairs in reciprocating pumps, the tribo-pairs can be considered as contact pairs consisting of a disc and pin. In this paper, pin-on-disc wear tests were carried out by using two types of cast iron pin specimens with different materials. Additionally, the effects of the lubrication condition, test load, diamond-like carbon (DLC) coating and plateau honing cross-hatch pattern on wear behavior of the tribo-pairs were investigated. Experimental results based on surface topography analysis and scanning elec- tron micrograph (SEM) analysis show that the lubricant and DLC coating have a positive effect on wear resistance of test specimens. Disc specimens of three material types (i.e. ISO 185/JL/250, tin-bronze, zirconia) are able to show good anti-wear behavior. The tribo-pairs composed of spheroidal graphite cast irons as well as implementation of the plateau honing cross hatch on disc specimens have no significant effect on the wear resistance. The Archard model was used to estimate abrasive wear under dry conditions, which was over-predicted compared to the experimental results.

Źródło:

Journal of Theoretical and Applied Mechanics; 2023, 61, 1; 77--87
1429-2955

Pojawia się w:

Journal of Theoretical and Applied Mechanics

Dostawca treści:

Biblioteka Nauki

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