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Wyświetlanie 1-15 z 26
Tytuł:
From the Humbled King to the Pitied Adulteress. Localization of Shakespeare in Cao Yu
Autorzy:
Lihua, Chen; Hong
Powiązania:
https://bibliotekanauki.pl/articles/648008.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Źródło:
Multicultural Shakespeare: Translation, Appropriation and Performance; 2006, 3
2083-8530
2300-7605
Pojawia się w:
Multicultural Shakespeare: Translation, Appropriation and Performance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trees with equal total domination and total restrained domination numbers
Autorzy:
Chen, Xue-Gang
Shiu, Wai
Chen, Hong-Yu
Powiązania:
https://bibliotekanauki.pl/articles/743513.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
total domination number
total restrained domination number
tree
Opis:
For a graph G = (V,E), a set S ⊆ V(G) is a total dominating set if it is dominating and both ⟨S⟩ has no isolated vertices. The cardinality of a minimum total dominating set in G is the total domination number. A set S ⊆ V(G) is a total restrained dominating set if it is total dominating and ⟨V(G)-S⟩ has no isolated vertices. The cardinality of a minimum total restrained dominating set in G is the total restrained domination number. We characterize all trees for which total domination and total restrained domination numbers are the same.
Źródło:
Discussiones Mathematicae Graph Theory; 2008, 28, 1; 59-66
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A first-principle study of the effect of Fe/Al impurity defects on the surface wettability of dolomite
Autorzy:
Chen, Hong
Ao, Xianquan
Cao, Yang
Li, Cuiqin
Jiang, Chunyan
Powiązania:
https://bibliotekanauki.pl/articles/2146916.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
density functional theory
phosphate rock flotation
dolomite
surface wettability
density of states
Opis:
The presence of Fe and Al atoms in large quantities in phosphate ores can significantly affect the surface properties of the minerals during flotation. In this study, the effects of Fe/Al impurities on the adsorption of H2O molecules on dolomite, including the density of states (DOS), Mulliken bond group values, and charge groups, were investigated and the adsorption energy was analyzed using density functional theory. The results show that the adsorption of H2O molecules on perfect and Fe/Al-substituted dolomites is weak chemisorption, and the Fe and Al impurities weaken and enhance the adsorption capacity of H2O molecules, respectively. Therefore, the hydrophilicity of the dolomite surface increases in the following order: Fe-substituted dolomite < perfect dolomite < Al-substituted dolomite. The Mulliken charge and bond group analysis shows that the adsorption of H2O molecules on dolomite is primarily through the interaction between Ow and Ca atoms, where the d orbitals of Ca atoms provide charges for Ow atoms to form ionic bonds, which related to the poor electronegativity of Ca atoms and their weak valence electron binding ability. The DOS analysis shows that, during the adsorption of H2O molecules on dolomite, Mg and Al atoms have less influence on the dolomite surface, whereas Fe and Ca atoms undergo competitive adsorption, which inhibits the interaction between Ca atoms and H2O molecules on the dolomite surface.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 4; art. no. 150702
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the total restrained domination number of direct products of graphs
Autorzy:
Shiu, Wai
Chen, Hong-Yu
Chen, Xue-Gang
Sun, Pak
Powiązania:
https://bibliotekanauki.pl/articles/743278.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
total domination number
total restrained domination number
direct product of graphs
Opis:
Let G = (V,E) be a graph. A total restrained dominating set is a set S ⊆ V where every vertex in V∖S is adjacent to a vertex in S as well as to another vertex in V∖S, and every vertex in S is adjacent to another vertex in S. The total restrained domination number of G, denoted by $γ_r^t(G)$, is the smallest cardinality of a total restrained dominating set of G. We determine lower and upper bounds on the total restrained domination number of the direct product of two graphs. Also, we show that these bounds are sharp by presenting some infinite families of graphs that attain these bounds.
Źródło:
Discussiones Mathematicae Graph Theory; 2012, 32, 4; 629-641
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pacific Island Countries: In Search of a Trade Strategy
Autorzy:
Chen, Hong
Rauqeuqe, Lanieta
Raj Singh, Shiu
Wu, Yiqun
Yang, Yongzheng
Powiązania:
https://bibliotekanauki.pl/articles/2042916.pdf
Data publikacji:
2020-04-27
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
Pacific island countries
trade
tourism
agriculture
inclusive growth
Opis:
This paper examines the role of international trade for economic prosperity in Pacific island countries (PICs), discusses their comparative advantage, and explores the potential for trade, and tourism in particular, to serve as a locomotive for inclusive economic growth. We find the trade performance in PICs has been generally weak over the past decade, with the exception of resource-rich countries. Small country size and remoteness from global economic centers may have contributed to this relatively poor performance. Using the gravity models to analyze the determinants of merchandise trade and tourism in PICs, we find tourism in these countries faces more favorable conditions for growth than goods exports. Further, we place our analysis in the context of the eastward shift of global economic gravity, focusing on emerging Asia as a source of demand for resource-based goods and services. We argue that the emergence of Asia as a dynamic global economic region presents PICs with an unprecedented opportunity to develop trade, particularly tourism, although traditional markets will remain important for a long time to come. Moreover, if stronger synergies can be established between tourism, agriculture, and fisheries, Pacific island countries stand a better chance to improve broad-based growth.
Źródło:
Journal of Banking and Financial Economics; 2019, 2(12); 56-80
2353-6845
Pojawia się w:
Journal of Banking and Financial Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fatigue reliability analysis of the brake pads considering strength degradation
Autorzy:
Zhang, Nan
Jiang, Guang-Jun
Wu, Dong-Wei
Chen, Hong-Xia
Wu, Jian-Xin
Powiązania:
https://bibliotekanauki.pl/articles/1841941.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
stress-strength interference model
dynamic reliability
strength degradation
impact load
Opis:
Reliability prediction of the brake pads is indispensable to guarantee their safety. In the paper, the fatigue reliability of brake pads is analyzed by dynamic stress-strength interference (SSI) model considering strength degradation. Firstly, reliability model of the brake pads was established based on stress-strength interference model considering the influence of impact load. Then reliability of the brake pads was predicted under different impact load frequency and initial strength. Finally, the influence of random degradation strength on reliability was studied by contrast. The analysis results show that random strength degradation, impact load and initial strength have great influence on reliability prediction for the brake pads. Therefore, the reliability prediction of the brake pads fatigue strength considering strength degradation is more in line with the actual situation and the calculation accuracy is higher.
Źródło:
Eksploatacja i Niezawodność; 2020, 22, 4; 620-626
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tubular biofilter treatment of isobutanol emissions under various organic loading rates
Autorzy:
Chen, Hong
Peng, Liang
Wei, Yanxiao
Yu, Lie
Jiang, Bo
Wang, Hong
Yu, Guanlong
Zhang, Guijin
Powiązania:
https://bibliotekanauki.pl/articles/207774.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
biofiltration
pollutants removal
volatile compounds
biofiltracja
usuwanie zanieczyszczeń
związki lotne
Opis:
Isobutanol in waste gas streams was treated by a tubular biofilter (TBF) which continuously operated for 364 days under various organic loading rate (OLR) from 11 g·m–3·h–1 to 66 g·m–3·h–1. Results show that within 60 days, the TBF successfully started up even after changing the OLR from 31.3 to 15.6 g·m–3·h–1. The average removal efficiencies (REs) were totally higher than 90% when OLRs ranged from 12.14 to 66.45 g·m–3·h–1. Two distinct performance deterioration periods were observed at days 186–253 and days 280–334, both of which recovered without additional measurement. During these periods, the larvae and adult moth flies, been identified as Psychodinae infested the TBF, greatly affected the TBF performance. When the number of adult Psychodinae decreased, TBF performance recovered. The elimination capacity (EC) was 60.42 g·m–3·h–1 at the inlet OLR of 66.45 g·m–3·h–1, with the critical EC being around 50 g·m–3·h–1. Even under a low gas empty bed residence time of 15 s, the preferable REs and ECs under middle or low OLRs were still obtained by the TBF.
Źródło:
Environment Protection Engineering; 2020, 46, 1; 15-29
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic characteristic study of riser with complex pre-stress distribution
Autorzy:
Chen, Luyun
Yi, Hong
Powiązania:
https://bibliotekanauki.pl/articles/962695.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
complex pre-stress
top-tensioned riser (TTR)
natural frequency
mode analysis
free vibration
Opis:
In this study, the dynamic characteristic problem of riser structure with complex pre-stress distribution is investigated. At first, the differential equation of the riser structure with complex pre-stress distribution is derived. The analytical expression of the free vibration of a riser structure with complex pre-stress distribution is discussed by using the orthogonal property of the trigonometric series. A top-tensioned riser (TTR) for example, the influences of the amplitude and direction of complex pre-stress on natural frequency and mode shape characteristics are compared. This study provides a new method for addressing the riser structure response problem with complex loading.
Źródło:
Polish Maritime Research; 2019, 3; 87-97
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimisation of Multi-Response Surface Parameters of the Roving Twist Factor and Spinning Back Zone Draft
Zastosowanie metody wielokrotnej odpowiedzi do optymalizacji parametrów technologicznych procesu przędzenia
Autorzy:
Hong, Cui
Chen, Shi
Powiązania:
https://bibliotekanauki.pl/articles/234040.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
twist factor
back zone draft
multi-response surface
orthogonal experiment
3D surface graph
współczynnik skrętu
zanurzenie strefy tylnej
powierzchnia wielokrotnej odpowiedzi
eksperyment ortogonalny
wykres powierzchniowy 3D
Opis:
In order to obtain the optimal collocation of two important technological parameters in the spinning process, the multi-response surface method was used to optimise the experimental results. Through the orthogonal design of the two factors and four levels of factor encoding, 16 groups of orthogonal experiments were designed; the experimental results were fit using the curve fitting toolbox of Matlab; a regression equation of yarn quality indicators, and in addition to a three-dimensional surface chart, an optimal scheme of the roving twist factor and spinning drafting for a roving twist factor of 110 were established; a spinning back draft of 1.5 was obtained based on experimental results of the response surface analysis and variance regression analysis. Experiments on the optimal scheme were carried out to verify the practicability of the results obtained by this method. The results show that application of the multiple response surface method to the optimisation of process parameters is of practical significance. This method can be applied for the optimisation of other process parameters.
Aby uzyskać optymalną kolokację dwóch ważnych parametrów technologicznych w procesie przędzenia, do optymalizacji wyników eksperymentalnych zastosowano metodę wielu odpowiedzi. Poprzez ortogonalne zaprojektowanie dwóch czynników i czterech poziomów kodowania czynnikowego zaprojektowano 16 grup eksperymentów ortogonalnych. Wyniki eksperymentalne dopasowano przy użyciu Matlab. Przeprowadzono eksperymenty na optymalnym schemacie w celu sprawdzenia wyników uzyskanych tą metodą. Wyniki pokazały, że zastosowanie metody powierzchni wielokrotnej odpowiedzi do optymalizacji parametrów procesu ma znaczenie praktyczne. Tę metodę można zastosować do optymalizacji innych parametrów procesu.
Źródło:
Fibres & Textiles in Eastern Europe; 2019, 5 (137); 28-33
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Machine vision based Vernier caliper reading technology research
Autorzy:
Chen, Wen-Meng
Wang, Hong-Xi
Wang, Guan-Wei
Liang, Wen-Hong
Powiązania:
https://bibliotekanauki.pl/articles/2173903.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Vernier calipers
convolutional neural networks
error averaging
alternate projection
Opis:
Accurate and fast access to Vernier caliper readings is a critical issue in automated verification of Vernier calipers. To address this problem, this paper proposes a machine vision-based algorithm for reading the Vernier caliper’s displayed value. The suggested method first employs threshold segmentation and template matching to determine the region of interest and obtain the main ruler digit position by alternate projection. Then, we apply the improved LeNet5 network to identify the main ruler of the Vernier caliper, Moreover, we developed the first and last inscription method for reading the decimal part of the Vernier caliper and established our data set for model training. Extensive experiments on reading the displayed value have demonstrated our algorithm’s accuracy, which achieves a displayed value reading accuracy of 100%. Compared to other methods, the proposed technique affords better stability and accuracy.
Źródło:
Metrology and Measurement Systems; 2022, 29, 4; 779--793
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal performance analysis of manned airships in a thermally variable environment
Autorzy:
Shi, Hong
Liu, Meinan
Chen, Jiamin
Zou, Yitao
Powiązania:
https://bibliotekanauki.pl/articles/2173708.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
manned airship
thermal performance
nacelle
temperature difference
flight position
sterowiec załogowy
wydajność cieplna
gondola
różnica temperatur
pozycja lotu
Opis:
The safety and reliability of the manned airship depend to a considerable extent on its thermal performance. In this paper, heat balance equations are developed and solved in the C++ programming language. The temperature variation of the enclosure, gasbag, and nacelles of the manned airship is investigated. In addition, the effects of season, latitude, and orientation on the thermal performance of the manned airship and the airship nacelle are investigated. The results show that: (1) The average temperature difference of the nacelle surface at the same time is 25 K, while the maximum temperature difference in the nacelle is 29 K during the day, (2) the temperature distribution in the nacelle is similar in spring and autumn, with maximum temperature between 306 K and 309 K. The maximum temperature in the nacelle is between 300 K and 303 K in winter while the maximum temperature in the nacelles is between 309 K and 315 K in summer, (3) as the flight position of the manned airship changes from 20°N to 60°N, the average nacelle temperature varies slightly by about 1 K. However, as the latitude increases, the high- temperature region shifts from the bottom of the nacelle to the side of the nacelle, and (4) the temperature distribution of the upper envelope of the airship varies considerably with orientation. However, the average temperature of the nacelle is less impacted by orientation. These results are useful for understanding the thermal performance of manned airships.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 5; art. no. e143105
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perceptions Influencing Apparel Safety Sustainable Consumption Behaviour: Exploring the Contextual Relationship
Autorzy:
Chen, Lihong
Qie, Kexin
Yu, Hong
Ding, Xuemei
Powiązania:
https://bibliotekanauki.pl/articles/2056298.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:
consumer perception
apparel safety
consumption behaviour
perceived consumer effectiveness
Opis:
The purpose of this paper is to develop and test a theoretical model that explains that the impact of consumer perceptions of apparel safety on their consumption behavior is moderated by consumers’ attitude and the price in the relationship studied. A survey questionnaire was developed and conducted first in a pretest by 231 participants to initially identify possible measurement problems. Another 321 potential consumers subsequently filled in the questionnaire on our website, out of which 296 questionnaires were used to verify the validity and reliability by statistical analysis and the structural equation model. The paper identifies a set of apparel safety perception dimensions that do not drive safe consumption practices. It is further seen that price is more likely to moderate the relationship with consumer behaviors than perceptions and attitudes. Therefore, the paper significantly fills the gaps between apparel safety perceptions and apparel safety consumption behavior. The findings of the paper have significant implications for apparel companies who wish to explore the apparel market potential in China.
Źródło:
Fibres & Textiles in Eastern Europe; 2022, 1 (151); 8--16
1230-3666
2300-7354
Pojawia się w:
Fibres & Textiles in Eastern Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of PCB-contaminated soil pretreatment remediation by hydroxypropyl-β-cyclodextrin (HP-β-CD)
Autorzy:
Liu, Xun
Ding, Ning
Liu, Hong
Chen, Houwang
Powiązania:
https://bibliotekanauki.pl/articles/205038.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
hydroxypropyl-β-cyclodextrin
polychlorinated biphenyls
contaminated soil
eluting
Opis:
The present study thoroughly evaluated the eff ect of hydroxypropyl-β-cyclodextrin (HP-β-CD) on eluting of Aroclor1242 (one kind of PCBs (polychlorinated biphenyls)) from contaminated soil. The factors that might aff ect eluting effi ciency including HP-β-CD concentration, contact time, eluting cycles, temperature, pH, salt content, humic acid, and ultrasonic were all tested to evaluate the PCBs eluting effi ciency by HP-β-CD. Results indicated that Aroclor1242 can be eluted eff ectively from soil by HP-β-CD solution, 81% of Aroclor1242 was eluted from soil by 50 g/L of HP-β-CD solution after three cycles eluting, and the eluting effi ciency was improved by increasing temperature and with ultrasonic. Furthermore, it was shown that the humic acid and extreme acidic/alkaline condition both decreased the eluting effi ciency. In addition, column eluting experiment was conducted to simulate the practical HP-β-CD eluting of Aroclor1242 from contaminated soil, 18% of the PCBs was eluted from the soil column by 10 g/L of HP-β-CD. Overall, the results indicated the high extract power of HP-β-CD toward PCBs polluted soil and potential use of HP-β-CD for in situ remediation of PCBs contaminated soils.
Źródło:
Archives of Environmental Protection; 2020, 46, 1; 53-61
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validation of School Core Competence Scale for Undergraduates: Empirical Findings of Taiwan Case
Autorzy:
Wu, Shwu Ming
Yang, Cheng Hong
Hsu, Wan Chen
Powiązania:
https://bibliotekanauki.pl/articles/2031728.pdf
Data publikacji:
2014-09-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
School Core Competence Scale
validation studies
Taiwanese undergraduates
Opis:
This study aimed to validate the 25-item School Core Competence Scale (SCCS) of the National Kaohsiung University of Applied Sciences. Item analysis and exploratory factor analysis were utilized with 368 undergraduates and confirmatory factor analysis with another 384 undergraduates. The SCSS had eight subscales, including Communication and Expression, International Perspective, Humanity, Civics and Morals, Professional Knowledge and Skills, Integrative Learning, Passion and Anti-stress, and Self-discipline. Results indicated that the SCCS is a valid and reliable instrument among undergraduates. Particularly, women scored higher on Communication and Expression, Civics and Morals, Self-discipline as well as the total scale.
Źródło:
The New Educational Review; 2014, 37; 95-105
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 26

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