Skocz do pozycji: 1.

Tytuł:

Comparative Study on Game Engines

Autorzy:

Barczak, Andrzej
Woźniak, Hubert

Powiązania:

https://bibliotekanauki.pl/articles/1819252.pdf

Data publikacji:

2019

Wydawca:

Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach

Tematy:

game engines
unity
cryengine
unreal engine

Opis:

Game engines are platforms that make it easier to create computer games. They allow you to integrate and combine into single unit individual game elements such as animations, interaction with the user, or detection of collisions between objects. Game engine is a software that facilitates the production of games for platforms such as desktops, consoles, and mobile devices [1]. In addition to specialized editors, game engines provide ready-made functionalities that can be used by users. A great advantage of using the game engine is the possibility of their reuse. Game engines are an example of software isolating rigid logic and game rules, from easily modifiable and expandable components, which can be used repeatedly in a way that does not require great modifications. This article is an attempt to perform a comparative analysis of three engines to create games: CryEngine, Unreal Engine, and Unity. The criteria for comparison will be technical capabilities and factors influencing the popularity and acceptance of engines by users. The aim of this article is to show the strengths and weaknesses of engines and to present the differences between these tools.

Źródło:

Studia Informatica : systems and information technology; 2019, 1-2(23); 5--24
1731-2264

Pojawia się w:

Studia Informatica : systems and information technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

Comparative study on various microbolometer structures

Autorzy:

Nazdrowicz, J.
Szermer, M.
Maj, C.
Zabierowski, W.
Napieralski, A.

Powiązania:

https://bibliotekanauki.pl/articles/398009.pdf

Data publikacji:

2016

Wydawca:

Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki

Tematy:

microbolometer
MEMS
microsystems
thermal imaging
integrated circuits
mikrobolometr
mikrosystemy
obrazowanie termiczne
układy scalone

Opis:

Meaningful progress in the fields of MEMS is associated with the continuous development of the micromachining technologies. One of the most promising devices in MEMS is thermal sensors. When the first microbolometer appeared on the market, a huge interest in thermal detectors was observed. This paper is a short overview study on microbolometer geometry, different solutions and possibilities to implement them as electrical models.

Źródło:

International Journal of Microelectronics and Computer Science; 2016, 7, 1; 16-25
2080-8755
2353-9607

Pojawia się w:

International Journal of Microelectronics and Computer Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Comparative study of hybrid foam microstructure models

Autorzy:

Szymczyk, W.
Miedzińska, D.

Powiązania:

https://bibliotekanauki.pl/articles/246261.pdf

Data publikacji:

2010

Wydawca:

Instytut Techniczny Wojsk Lotniczych

Tematy:

FEM modelling
foam structure
elastomer filament
geometry orientation

Opis:

Cellular solids are materials made out of solid strut or thin plate like structures bridged together. They occur in nature in the form of honeycombs, wood, bone, cork etc. These materials possess a unique combination of properties such as low thermal conductivitv, low density and high energy-absorption. Foams are a class of cellular solids, generally made by dispersing gas into a liquid material and then cooling it to solidify. They are categorized as open-cell and closed-cell foams. Depending on the solid materials that are made into foams, they are also categorized as polymeric foams, metallic foams, and ceramic foams. Due to developments in material science and manufacturing lechniques, advanced foams have found potential for use in automobile, aircraft, and space vehicle structures. In the paper the comparative study of the hybrid foam microstructures is presented. Hybrid foam is a new, still developed material that is built of the aluminum open cell foam matrix filled with other material (here: elastomer). The numerical models based on cubic geometry in different configurations are developed. The FE analysis of the compression test is curried out. The results are presented and analyzed due to the microstructure geometry influence on the material behaviour.

Źródło:

Journal of KONES; 2010, 17, 4; 505-511
1231-4005
2354-0133

Pojawia się w:

Journal of KONES

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Comparative study of traditional and virtual teams

Autorzy:

Krawczyk-Bryłka, B.

Powiązania:

https://bibliotekanauki.pl/articles/1940182.pdf

Data publikacji:

2017

Wydawca:

Politechnika Gdańska

Tematy:

teamwork
virtual teams
traditional teams
team virtuality
team management
team decisions
praca zespołowa
zespoły wirtualne
zespoły tradycyjne
wirtualność zespołu
zarządzanie zespołami
decyzje zespołu

Opis:

The paper presents two kinds of cooperating teams: traditional and virtual, and proposes a new measure of the team virtuality level. Some representative teamwork characteristics, such as team member competencies, team diversity, leadership, and team decision-making are analyzed and compared depending on the degree of virtuality. Moreover, the team climate as one of the team performance measures is also analyzed and compared in virtual and traditional teamwork conditions. The considerations show that the virtuality level is crucial for virtual and face-to-face team comparison, virtual and hybrid team analysis and answering the question how to improve online collaboration processes and performance.

Źródło:

TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2017, 21, 3; 233-245
1428-6394

Pojawia się w:

TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

Health Status and Political Corruption: a Comparative Study

Autorzy:

Peterson, Steven A.

Powiązania:

https://bibliotekanauki.pl/articles/1933783.pdf

Data publikacji:

2021-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Opis:

There is a relatively small but important research oeuvre in the biological study of comparative and international politics. This essay is situated within that literature. One significant issue in comparative politics is corruption—its causes, its consequences, and remediation. This study focuses on the first point with a focus on a biosocial variable that might be at work. Prior research has suggested that health status of a nation affects extent of democratization, electoral integrity, and fragility of states. In no case is health status the dominant predictor. Given its relationship with those three aspects of a polity, this paper examines the effect of health status on corruption across states. Given prior results, there is good reason to hypothesize that as health status increases, states are less apt to have high rates of corruption. The base for this analysis comprises data on over 150 nations. Among the variables as part of that data set are health status and corruption. Results are reported and discussion centers on the meaning of the data and what the implications might be.

Źródło:

Reality of Politics; 2021, 18; 147-162
2082-3959

Pojawia się w:

Reality of Politics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Child-rearing practices in Slovakia - a comparative study

Autorzy:

Rubacha, Krzysztof
Sirotova, Mariana

Powiązania:

https://bibliotekanauki.pl/articles/2012163.pdf

Data publikacji:

2015-06-30

Wydawca:

Wydawnictwo Adam Marszałek

Opis:

The article reports on empirical research into the differences in child-rearing practices between present-day families and families living at the turn of the 21st century. The concept of child-rearing practices is addressed from the point of view of social theories of learning and socio-cognitive theories which constituted the basis for the research discussed. Results show that a portion of practices significantly differs in each group, and a portion remains unchanged. The biggest difference concerns ‘deferment of gratification’ as a factor for the development of many social skills. In the present-day family group this child-rearing effect has largely disappeared.

Źródło:

The New Educational Review; 2015, 40; 17-25
1732-6729

Pojawia się w:

The New Educational Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

Health status, nutrition and democratization: a comparative study

Autorzy:

Peterson, Steven A.
Franzese-Peterson, Evan

Powiązania:

https://bibliotekanauki.pl/articles/1933343.pdf

Data publikacji:

2021-06-30

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

Health status
nutrition
democratization

Opis:

Many factors have been adduced to explain why some states become democracies and others not. Accepted variables predicting democracy include education level, economic development, urbanization, communication networks and so on. This paper will explore two biological variables’ role—nutrition level and health status. Comparative data are used to explore the effects of these variables on level of democracy. Implications are discussed.

Źródło:

Reality of Politics; 2021, 16; 93-106
2082-3959

Pojawia się w:

Reality of Politics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Comparative study on transistor based full adder designs

Autorzy:

Anitha, R.

Powiązania:

https://bibliotekanauki.pl/articles/1182905.pdf

Data publikacji:

2016

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Full Adder; CPL; DPL; CMOS; Transmission gates; Arithmetic Unit

Opis:

Recently in the generic systems the load on the processor is much heavy. The ability and the challenging process have ended with larger core operations are in the core processor. This paper is basically given special importance on different methodologies having been proposed for Adder, which is the basic operation of the Arithmetic unit. The wide research on the digital adders has been covered so many applications like designs of ALU, RISC, CISC processors, DSP used for data path arithmetic, low power CMOS, optical computing, Nanotechnology and so on. This paper gives greater knowledge and understanding about the various techniques that have amply used of Adder from the earlier years. In this paper we analyzed the implementation of different types of full Adders implemented using CMOS logic (Static CMOS and Dynamic CMOS), CMOS Transmission Gates, Pass Transistor Gates (CPL and DPL).

Źródło:

World Scientific News; 2016, 53, 3; 404-416
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Comparative study of selected lubricating properties of biofuels

Autorzy:

Gardyński, L.
Kałdonek, J.

Powiązania:

https://bibliotekanauki.pl/articles/102464.pdf

Data publikacji:

2013

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

vegetable oils
rapeseed oil methyl esters
lubricating properties

Opis:

The paper presents the research results of lubricity of selected vegetable oils, rapeseed oil methyl esters, and esters with addition of oleic acid. Higher wear of samples during lubrication by rapeseed oil methyl esters in comparison to the tested vegetable oils was obtained. The addition of oleic acid to esters resulted in the improvement of their lubricating properties.

Źródło:

Advances in Science and Technology. Research Journal; 2013, 7, 20; 75-79
2299-8624

Pojawia się w:

Advances in Science and Technology. Research Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Foreign Language Teachers’ Feedback Practices: a Comparative Study

Autorzy:

Brumen, Mihaela
Alonso-Belmonte, Isabel
Fernández Agüero, María
Zupančič, Tomaž

Powiązania:

https://bibliotekanauki.pl/articles/1969309.pdf

Data publikacji:

2018-09-30

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

assessment
feedback comments
foreign language
teacher education
young learners

Opis:

The purpose of this study is to describe the current foreign language (FL) assessment and feedback practices as reported by 213 experienced primary teachers in Slovenia and Spain. An ad hoc questionnaire was designed, validated and administered to 113 Slovenian and 100 Spanish teachers. The data were collected and analysed with the use of descriptive and inferential statistics. Among the most relevant findings, it is noteworthy that Spanish teachers focus on providing feedback on receptive skills while their Slovenian colleagues pay more attention to productive skills. Also, results from both groups reveal a lack of FL pronunciation feedback and scarce attention to interactive aspects of communication.

Źródło:

The New Educational Review; 2018, 53; 216-226
1732-6729

Pojawia się w:

The New Educational Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

Ensembles of instance selection methods: A comparative study

Autorzy:

Blachnik, Marcin

Powiązania:

https://bibliotekanauki.pl/articles/330413.pdf

Data publikacji:

2019

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

machine learning
instance selection
ensemble methods
uczenie maszynowe
selekcja przypadków
metoda zespołowa

Opis:

Instance selection is often performed as one of the preprocessing methods which, along with feature selection, allows a significant reduction in computational complexity and an increase in prediction accuracy. So far, only few authors have considered ensembles of instance selection methods, while the ensembles of final predictive models attract many researchers. To bridge that gap, in this paper we compare four ensembles adapted to instance selection: Bagging, Feature Bagging, AdaBoost and Additive Noise. The last one is introduced for the first time in this paper. The study is based on empirical comparison performed on 43 datasets and 9 base instance selection methods. The experiments are divided into three scenarios. In the first one, evaluated on a single dataset, we demonstrate the influence of the ensembles on the compression–accuracy relation, in the second scenario the goal is to achieve the highest prediction accuracy, and in the third one both accuracy and the level of dataset compression constitute a multi-objective criterion. The obtained results indicate that ensembles of instance selection improve the base instance selection algorithms except for unstable methods such as CNN and IB3, which is achieved at the expense of compression. In the comparison, Bagging and AdaBoost lead in most of the scenarios. In the experiments we evaluate three classifiers: 1NN, kNN and SVM. We also note a deterioration in prediction accuracy for robust classifiers (kNN and SVM) trained on data filtered by any instance selection methods (including the ensembles) when compared with the results obtained when the entire training set was used to train these classifiers.

Źródło:

International Journal of Applied Mathematics and Computer Science; 2019, 29, 1; 151-168
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: 12.

Tytuł:

On board LNG reliquefaction technology: a comparative study

Autorzy:

Gómez, J.
Gómez, M.
Garcia, R.
Catoira, A.

Powiązania:

https://bibliotekanauki.pl/articles/963412.pdf

Data publikacji:

2014

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

reliquefaction
boil-off gas
vessel
Brayton Cycle
efficiency

Opis:

Reliquefaction technologies are being currently applied on board liquefied natural gas (LNG) carriers on the basis of economic criteria and energy efficiency. A variety of reliquefaction techniques have been developed so far during the last decade. Nevertheless, technology enhancement continues being a research area of interest. In this article the different technologies applied to the reliquefaction of the boil-off gas (BOG) on LNG carriers have been described, analysed and discussed, contributing to highlight the process and operation characteristics as well as selection plant criteria. Finally, a comparison of the different reliquefaction plants, considering their capacities and efficiencies as well as other technical data of interest has been carried out.

Źródło:

Polish Maritime Research; 2014, 1; 77-88
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Rabindranath Tagore on a comparative study of religions

Autorzy:

Mukherjee, Asha

Powiązania:

https://bibliotekanauki.pl/articles/437551.pdf

Data publikacji:

2014

Wydawca:

Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie. Instytut Filozofii i Socjologii

Tematy:

Rabindranath Tagore
religia człowieka
badania nad religiami
religioznawstwo
pluralizm religijny
filozofia religii
badania porównawcze
komparatystyka
hinduizm
filozofia indyjska
religia uniwersalna
uniwersalizm religijny
boskość człowieka
The religion of Man
religious studies
religious pluralism
philosophy of religion
comparative studies
Hinduism
Universal religion
Divinity of Man

Opis:

Study of religion describes, analyzes and compares how certain human beings do in fact express their faith in terms of particular scriptures, religious figures, sacred rituals, community solidarity, etc. — and how all these explicitly religious phenomena may relate to other aspects of people’s lives. It also aspires and addresses the questions to be even-handed, objective, based on evidence that may be checked by any competent inquirer, and non-committal on claims to divine revelation and authority. It is in principle comparative, not in a judgmental evaluative sense, but in terms of describing and analysing comparable elements or phenomena from various religious traditions, using the same criteria in each case. The paper begins with a brief report on the study of religion in the context of India and presents in detail Rabindranath Tagore’s (1861–1941) views on the need, an objective and philosophy behind the comparative study of religion. As Tagore observes, when studying religion one usually chooses among two alternative approaches: to do research on the secret text or to study the rituals. Tagore accepts fully none of them and instead suggests to rediscover how human aspiration for transcendence works in practice, how it sustains the individual — often marginalized by the power of institutionalised religion — and society, and how it generates new cultural forms. For Tagore, the essence of religion lies is the will to transcend the limit of the self-cantered being towards an ideal of perfection — which he calls divinity of Man. His understanding of the “religion of Man”, as he puts it, is discussed in the major part of the paper.

Źródło:

ARGUMENT: Biannual Philosophical Journal; 2014, 4, 1; 69-80
2083-6635
2084-1043

Pojawia się w:

ARGUMENT: Biannual Philosophical Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Charakterystyka porównawcza powłok konforemnych
Comparative study of conformal coatings

Autorzy:

Skwarek, A.
Witek, K.

Powiązania:

https://bibliotekanauki.pl/articles/192270.pdf

Data publikacji:

2007

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Technologii Materiałów Elektronicznych

Tematy:

powłoka konforemna
warstwa cienka
parametry elektryczne obwodów

Opis:

Technologia zabezpieczania układów elektronicznych za pomocą powłok konforemnych umożliwia zwiększenie stopnia automatyzacji produkcji podzespołów elektronicznych. Powłoki konforemne są cienkimi warstwami o grubości 25 - 50 mm zabezpieczającymi elementy układów przed działaniem takich czynników jak ścieranie, temperatura, ozon, pleśnie, wilgoć oraz promieniowanie ultrafioletowe. Własności fizyczne i skład chemiczny powłok gwarantują różny stopień zabezpieczenia przed wspomnianymi czynnikami środowiskowymi. Cechą charakterystyczną tego rodzaju zabezpieczeń jest możliwość dokładnego odwzorowania powierzchni. W artykule przedstawiono zarówno niektóre praktyczne informacje dotyczące powłok konforemnych, jak i wyniki badań własnych dotyczące ich wpływu na niektóre parametry układów.
The conformal coating technology of protecting the surface of electronic assemblies from harsh environment has been developing recently as a result of increasing automation of electronic production. The conformal coating is a thin protective layer of 25 - 50 urn thickness which can provide resistance to several stresses including abrasion, shock, temperature, ozone, mould, humidity and ultraviolet degradation etc. The physical and chemical compositions of various coatings offer different degrees of protection. The characteristic feature of this type of protection is a possibility of circuit surface conformal mapping. In this article some practical information, as well as the results of own investigations of different type of conformal coatings are presented.

Źródło:

Materiały Elektroniczne; 2007, T. 35, nr 2, 2; 54-65
0209-0058

Pojawia się w:

Materiały Elektroniczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Dwa twierdzenia. Studium porównawcze.
Two Statements. A comparative study.

Autorzy:

Michalski, Jan

Powiązania:

https://bibliotekanauki.pl/articles/560153.pdf

Data publikacji:

2009

Wydawca:

Uniwersytet Wrocławski. Instytut Historii Sztuki

Tematy:

Andrzej Wróblewski
Zbylut Grzywacz

Opis:

The contents of the article is a comparison of two important in the post-war Polish art pictures: ‘The Queue Goes On’ of 1956 by Andrzej Wróblewski (1927-1957) and its travesty – ‘The Queue Still Goes On’ (for Andrzej Wróblewki) of 1973 by Zbylut Grzywacz (1939-2004). Both works had political meaning – read usually as existential metaphors of communist system. Wróblewski’s painting was read in the spirit of marxist revisionism of the ‘Thaw’ period, Grzywacz’s painting in the spirit of democratic rhetoric used by the opposition fighting for ‘human rights’ in the 1970s. The author compares both pictures, together with the expressions assumed as their titles, and exams the relations between them. Art history methods play an additional role as the actual aim of consideration is showing the deeper, spiritual ground of relations of both artists. It is a task for hermeneutics, which is described by the author as a gift of reading signs and following these signs as far as possible. ‘Each repeti- tion is equally primary as the work itself’ these words by Hans-Georg Gadamer are a compositional frame for the essay and an interpretation directive. How did Grzywacz ‘repeat’ Wróblewski’s painting? The author is looking for an answer on a few interpretation planes. Wróblewski’s art was rich in symbols of metamorphosis – it was permeated by the typical for European post-war art stream of cosmic vitalism and biological regeneration, appearing in visual metaphors of ‘a life chain’ among others. Examining reflections of this stream in Grzywacz’s art reveals its traces not in the area of moralistics and history, but in science. Both painters were agnostics, with Grzywacz being a naturalist – he was an active collector in the field of geology and entomology. Symbols of metamorphosis, which were unusually seldom in his painting, were connected with these sciences – the artist’s life passions – what is proved in his picture ‘Chrysalis’ painted during his terminal illness.

Źródło:

Quart. Kwartalnik Instytutu Historii Sztuki Uniwersytetu Wrocławskiego; 2009, 4(14); 91-103
1896-4133

Pojawia się w:

Quart. Kwartalnik Instytutu Historii Sztuki Uniwersytetu Wrocławskiego

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

Audyt a kontrola – porównanie
Audit and control – comparative study

Autorzy:

Piaszczyk, Artur

Powiązania:

https://bibliotekanauki.pl/articles/588271.pdf

Data publikacji:

2017

Wydawca:

Uniwersytet Ekonomiczny w Katowicach

Tematy:

Audyt
Finanse publiczne
Kontrola
Rewizja
Audit
Auditing
Control
Public finance

Opis:

Artykuł porusza istotne zagadnienie, jakim jest merytoryczne porównanie audytu i kontroli z punktu widzenia celów, zadań, usytuowania w organizacji i związanych z tym aspektów prawnych. Szczegółowej analizie poddano definicje obydwu pojęć, zarówno w praktyce krajowej, jak i międzynarodowej. Przedstawiono i omówiono przyczyny nieporozumień, które powstały w pojmowaniu audytu i kontroli. Zwrócono także uwagę na różnice, głównie prawne, dotyczące audytu i kontroli. W artykule skupiono się przede wszystkim na audycie wewnętrznym i kontroli wewnętrznej. Audyt zewnętrzny i kontrolę zewnętrzną przeanalizowano w węższym zakresie z uwagi na fakt, iż w tym zakresie, praktycznie, nie występują zasadnicze różnice.
The article discusses the essential issue of substantive audit and control comparison, in terms of objectives, tasks, location in the organization and related legal aspects. Detailed definitions of both concepts have been analyzed in both national and international practice. The reasons for the misunderstandings arising from the understanding of audit and control are presented and discussed. Attention has also been paid to differences, mainly legal, concerning audit and control. The article focuses mainly on internal audit and internal control. External audit and external audit were analyzed in a narrower scope, since there are practically no significant differences in this regard.

Źródło:

Studia Ekonomiczne; 2017, 333; 150-161
2083-8611

Pojawia się w:

Studia Ekonomiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

SDDSfL vs. local disk - a comparative study for Linux

Autorzy:

Chrobot, Arkadiusz
Lasota, Maciej
Łukawski, Grzegorz
Sapiecha, Krzysztof

Powiązania:

https://bibliotekanauki.pl/articles/764685.pdf

Data publikacji:

2010

Wydawca:

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

Źródło:

Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2010, 10, 1
1732-1360
2083-3628

Pojawia się w:

Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Comparative study of stabilization controls of a forklift vehicle

Autorzy:

Widyotriatmo, Augie

Powiązania:

https://bibliotekanauki.pl/articles/970586.pdf

Data publikacji:

2019

Wydawca:

Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej

Tematy:

autonomous vehicle
stabilization control
time varying based control
discontinuous control
navigation variables based control

Opis:

This paper presents the control designs for an autonomous forklift vehicle that drive the vehicle from an initial configuration to a final one. Three stabilization controls, which are chained-form time-varying control, sigma-transformed discontinuous control, and navigation-variables-based discontinuous control, for a forklift vehicle are compared by simulations. The sigma-transformed and navigation-variables-based discontinuous controls provide fast convergence motions from an initial to a final configuration, while the time-varying-based control provides oscillatory motion and slow convergence. The sigma-transformed discontinuous control has a set of discontinuous points in which, from a practical point of view, the control signals can blow up if a vehicle enters the set. The navigation-variables-based control, which also has a discontinuous point at the final configuration, does not produce blown up control signals since its boundedness nature. Discussion on the implementation of control algorithm is elucidated for the three stabilization controls for the forklift vehicle.

Źródło:

Acta Mechanica et Automatica; 2019, 13, 3; 181-188
1898-4088
2300-5319

Pojawia się w:

Acta Mechanica et Automatica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

Moral Competence, Personality, and Demographic Characteristics: A Comparative Study

Autorzy:

Karamavrou, Sofia
Mouratidou, Katerina
Evaggelinou, Christina
Koidou, Irini
Parisi, Ioanna

Powiązania:

https://bibliotekanauki.pl/articles/781467.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

morality
personality factors
physical education
school setting

Opis:

The development of moral competence is affected by both internal and external factors and has been researched by many scientists. The present study investigated a) whether the five factors of personality, gender and geographical area would affect ones’ moral competence, b) whether the personality factors Openness to Experience, Conscientiousness and Agreeableness would be correlated positively with moral competence in everyday life, whereas Extraversion and Neuroticism would be correlated negatively with morality, c) if there will be differences in students’ moral competence exhibited in everyday life and that expressed in PE/sports framework and d) whether type of school, factors of personality, as well as moral competence exhibited in sports-framework would all be significant factors for the interpretation of a student’s moral competence. The sample consisted of 331 junior high students (7th and 8th graders) (Mage = 12.47, SD = 0.740), who were given the Moral Competence Test Greek Version (Mouratidou et al. 2003), the Moral Judgment Test in Physical Education(Mouratidou et al. 2008), and the Inventory of Child Individual Differences (Besevegkis & Pavlopoulos 1998). The results indicated that of the five-factor personality model only Conscientiousness can affect moral reasoning ability in everyday life and that the type of school can account for less than 5% of variance when predicting moral competence in high school students.

Źródło:

Ethics in Progress; 2016, 7, 1; 136-151
2084-9257

Pojawia się w:

Ethics in Progress

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Comparative study of divers oscillators
Porównawcze badania różnych oscylatorów

Autorzy:

Karaliunas, B.
Shulskis, D.

Powiązania:

https://bibliotekanauki.pl/articles/159114.pdf

Data publikacji:

2006

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Elektrotechniki

Tematy:

neuron
oscylator
oscylator Hodgkin-Huxley
Hodgkin-Huxley oscillator
serial interconnection
feedback loop interconnection

Opis:

In this paper several classical neural oscillators (FitzHugh-Nagumo, Van der Pol, Hodgkin-Huxley) were studied. Although there are many known different oscillators, the Hodgkin-Huxley oscillator was more deeply investigated. Systems of two interconnected Hodgkin-Huxley neurons were also analyzed. Relationships between frequency and input current amplitude were found.
Artykuł omawia kilka klasycznych oscylatorów neutralnych (FitzHug-Nagumo, Van der Pol, Hodgkin-Huxley). Jakkolwiek znanych jest wiele różnych oscylatorów, jednak oscylator Hodgkin-Huxley został zbadany dokładniej. Przeanalizowano też układy dwu połączonych neuronów Hodgkin-Huxley. Podano zależność częstotliwości od amplitudy prądu wejściowego.

Źródło:

Prace Instytutu Elektrotechniki; 2006, 226; 19-44
0032-6216

Pojawia się w:

Prace Instytutu Elektrotechniki

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Comparative Study between Several Direction of Arrival Estimation Methods

Autorzy:

Khmou, Y.
Safi, S.
Frikel, M.

Powiązania:

https://bibliotekanauki.pl/articles/308017.pdf

Data publikacji:

2014

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

array processing
Direction of Arrival
geolocalization
propagation
smart antenna
spectral analysis

Opis:

In this paper a comparative study, restricted to one-dimensional stationary case, between several Direction of Arrival (DOA) estimation algorithms of narrowband signals is presented. The informative signals are corrupted by an Additive White Gaussian Noise (AWGN), to show the performance of each method by applying directly the algorithms without pre-processing techniques such as forward-backward averaging or spatial smoothing.

Źródło:

Journal of Telecommunications and Information Technology; 2014, 1; 41-48
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

Remembrance, Identity Politics and Political Transitions: a Comparative Study

Autorzy:

Marszałek-Kawa, Joanna
Wawrzyński, Patryk

Powiązania:

https://bibliotekanauki.pl/articles/594917.pdf

Data publikacji:

2016

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

democratisation
transformations
collective memory
remembrance policy
new elites
transitional justice
social stratification
symbolic roles

Opis:

The paper presents findings of the comparative study on relationships between remembrance story-telling and the transitional reconstruction of political identities. It identifies in which areas and fields of impact governments tend to use interpretations of the past to promote new leadership visions of society. Moreover, it verifies theoretical hypotheses related to the politicised remembrance and its role as a political asset during transformations, as well as it considers the theoretical framework of democracy-building (and a common prediction of its universal character). As a result, the study offers a detailed picture of the way remembrance narratives are transformed into explanations, justifications or legitimisation of new, post-authoritarian identities based on qualitative-to-quantitative analysis of the intensity of story-telling and its links with transitional identity politics. In the conclusion, the Authors present their consideration of research findings, and they discuss it with reference to the nature of transitional government’s remembrance policy as a sphere of social influence.

Źródło:

Polish Political Science Yearbook; 2016, 45; 11-21
0208-7375

Pojawia się w:

Polish Political Science Yearbook

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Subjective and Objective Comparative Study of DAB+ Broadcast System

Autorzy:

Gilski, P.
Stefański, J.

Powiązania:

https://bibliotekanauki.pl/articles/177540.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

audio quality assessment
broadcasting
digital audio broadcasting
quality of experience
quality of service
radio communication

Opis:

Broadcasting services seek to optimize their use of bandwidth in order to maximize user’s quality of experience. They aim to transmit high-quality digital speech and music signals at the lowest bitrate. They intend to offer the best quality under available conditions. Due to bandwidth limitations, audio quality is in conflict with the number of transmitted radio programs. This paper analyzes whether the quality of real-time digital DAB+ broadcasted radio programs surpasses the quality offered by analog FM radio. We also perform a subjective and objective quality assessment comparative study of the HE-AAC v2 audio codec used in DAB+. The subjective studies were carried out using the MOS test methodology, whereas the objective tests were realized using the ViSQOLAudio metric. These studies were followed by a questionnaire concerning the migration from analog to digital radio domain.

Źródło:

Archives of Acoustics; 2017, 42, 1; 3-11
0137-5075

Pojawia się w:

Archives of Acoustics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

Comparative study of charging system of spark ignition engine

Autorzy:

Sendyka, B.
Filipczyk, J.
Noga, M.
Rodak, Ł.

Powiązania:

https://bibliotekanauki.pl/articles/246350.pdf

Data publikacji:

2007

Wydawca:

Instytut Techniczny Wojsk Lotniczych

Tematy:

transport
combustion engines
charging system

Opis:

The purpose of investigation was comparison of engine's output while equipped with different types of turbocharging systems. Engine used during research was Toyota's SI engine with displacement of 1296 cm3. Intake and exhaust manifold were modified by introducing fixed and variable geometry turbocharger. The third system was electrically driven charger ensuring both constant and variable boost pressure. Regulatory parameters of fuel injection and ignition system weren't changed. On the basis of carried out research , it was affirmed that there is a possibility of introducing charging system into the engine without changes of mentioned regulatory parameters. Proper choice concerning charging systems allows improving torque characteristic in wide range of engine's rotational speed. Electrically driven charger giving maximum boost pressure provides significant improvement in low engine's speed range, whereas in higher range it is not showing so much advantage. In medium engine's speed range the best result is given by variable geometry turbocharging system. In this application boost pressure had to be reduced to 0.25105 [Pa] in order to provide stable engine's run in all conditions including variable engine's speed and whole range of throttle opening angle.

Źródło:

Journal of KONES; 2007, 14, 3; 551-555
1231-4005
2354-0133

Pojawia się w:

Journal of KONES

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

Defluoridation of drinkable water Comparative study and parameter influent

Autorzy:

Atia, D.
Hoggui, A.
Abdelhafidh, B. A.

Powiązania:

https://bibliotekanauki.pl/articles/411680.pdf

Data publikacji:

2013

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

fluorine
defluoridation
drinkable water
coagulation
precipitation

Opis:

El-Oued is known for some diseases caused by fluoride concentration in drinkable water. To reduce it , a sample with the biggest content among many sources was chosen. A comparative study between the precipitation with calcium salts [Ca(OH)2, CaCl2, CaSO4] and the coagulation with the following salts [Al2(SO4)2•18H2O, Fe2(SO4)2•H2O, FeSO4] was done. Finely we studied the parameters influencing (the mass , pH, temperature) to choose the best conditions in order to get better reduction yield.

Źródło:

International Letters of Chemistry, Physics and Astronomy; 2013, 10, 1; 48-60
2299-3843

Pojawia się w:

International Letters of Chemistry, Physics and Astronomy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Comparative study for the defluoridation of water by Coagulation

Autorzy:

Atia, D.
Hoggui, A.
Abdelhafidh, D. B. A.

Powiązania:

https://bibliotekanauki.pl/articles/412421.pdf

Data publikacji:

2013

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

fluorine
defluoridation
drinkable water
coagulation

Opis:

El-Oued is known for some diseases caused by fluoride concentration in drinkable water. To reduce it, we have chosen a sample with the highest content of fluoride among many sources in order to coagulate it with Al2(SO4)3ź18H2O, Fe2(SO4)3źH2O and FeSO4. In order to get better reduction yield of fluoride, a study has been done on the influencing parameters (concentration, pH, temperature) to choose the best conditions. The remove of fluoride is favorable at low concentration of Al2(SO4)3, at room temperature and normal acidity.

Źródło:

International Letters of Chemistry, Physics and Astronomy; 2013, 8, 2; 123-131
2299-3843

Pojawia się w:

International Letters of Chemistry, Physics and Astronomy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 27.

Tytuł:

DAB vs DAB+ Radio Broadcasting : a Subjective Comparative Study

Autorzy:

Gilski, P.

Powiązania:

https://bibliotekanauki.pl/articles/176838.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

audio quality assessment
broadcasting
DAB+
digital audio broadcasting
QoE
quality of experience
QoS
quality of service
radio communication

Opis:

In the age of digital media, delivering high quality content to consumers is one of the most demanding tasks. There exist numerous broadcasting standards, with different pros and cons, and the DAB/DAB+ (Digital Audio Broadcasting) system is one of the most popular among them. From an engineer’s perspective, efficient resource management under limited bandwidth conditions has always been a challenge. In this paper a subjective quality assessment study of the DAB and DAB+ broadcasting system is performer on a representative group of signal samples. It describes the radio link, including a fully functional transmitter designed for the purpose of this test, as well as the receiver side representing a commercially available consumer device, for a truly real-time and end-to-end quality evaluation.

Źródło:

Archives of Acoustics; 2017, 42, 4; 715-723
0137-5075

Pojawia się w:

Archives of Acoustics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 28.

Tytuł:

Comparative Study of Supervised Learning Methods for Malware Analysis

Autorzy:

Kruczkowski, M.
Niewiadomska-Szynkiewicz, E.

Powiązania:

https://bibliotekanauki.pl/articles/309481.pdf

Data publikacji:

2014

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

data classification
k-Nearest Neighbors
malware analysis
Naive Bayes
support vector machine (SVM)

Opis:

Malware is a software designed to disrupt or even damage computer system or do other unwanted actions. Nowadays, malware is a common threat of the World Wide Web. Anti-malware protection and intrusion detection can be significantly supported by a comprehensive and extensive analysis of data on the Web. The aim of such analysis is a classification of the collected data into two sets, i.e., normal and malicious data. In this paper the authors investigate the use of three supervised learning methods for data mining to support the malware detection. The results of applications of Support Vector Machine, Naive Bayes and k-Nearest Neighbors techniques to classification of the data taken from devices located in many units, organizations and monitoring systems serviced by CERT Poland are described. The performance of all methods is compared and discussed. The results of performed experiments show that the supervised learning algorithms method can be successfully used to computer data analysis, and can support computer emergency response teams in threats detection.

Źródło:

Journal of Telecommunications and Information Technology; 2014, 4; 24-33
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 29.

Tytuł:

Comparative study of soil infiltration capacity at selected sites

Autorzy:

Vicanova, M.
Toman, F.
Masicek, T.
Oppeltova, P.

Powiązania:

https://bibliotekanauki.pl/articles/62345.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN

Tematy:

soil infiltration
soil
infiltration rate
hydrophysical property
soil property
soil compaction
Czech Republic
territory characteristics
soil moisture
bulk density
porosity
soil quality

Opis:

The study deals with definition and cross-comparison of soil infiltration capacity at two selected sites located in cadastral territories of Nosislav and Žabčice, Czech Republic. In order to assess the soil infiltration capacity in the areas of interest Niva and Kovál over the course of the 2010 growing season, four trips were made with three measurements taking place during each trip. A method of doublering infiltration measurement was applied, based on the use of two concentric cylinders in field conditions and the subsequent data processing via geographical-empirical method according to Kostiakov. The soil infiltration capacity was assessed with regard to physical properties determined by an analysis of intact soil samples using Kopecky cylinders. The results indicate a reduced infiltration capacity due to soil compaction and also significant differences between the two sites, primarily caused by differences in soil type and, hence, different physical characteristics.

Źródło:

Infrastruktura i Ekologia Terenów Wiejskich; 2011, 12
1732-5587

Pojawia się w:

Infrastruktura i Ekologia Terenów Wiejskich

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

Desertification on Sahara borders and in Central Asia - comparative study

Autorzy:

Plit, Florian

Powiązania:

https://bibliotekanauki.pl/articles/2014128.pdf

Data publikacji:

1996-06-01

Wydawca:

Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych

Źródło:

Miscellanea Geographica. Regional Studies on Development; 1996, 7; 225-234
0867-6046
2084-6118

Pojawia się w:

Miscellanea Geographica. Regional Studies on Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 31.

Tytuł:

Comparative study on the classification methods for breast cancer diagnosis

Autorzy:

Qiu, Y.
Zhou, G.
Zhao, Q.
Cichocki, A.

Powiązania:

https://bibliotekanauki.pl/articles/200743.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

breast cancer
mammography
DDSM
comparative study
deep learning
rak piersi
mammografia
Badanie porównawcze
uczenie głębokie

Opis:

Digital mammography is one of the most widely used approaches for breast cancer diagnosis. Many researchers have demonstrated the superiority of machine learning methods in breast cancer diagnosis using different mammography databases. Since these methods often have different pros and cons, which may confuse doctors and researchers, an elaborate comparison and examination among them is urgently needed for practical breast cancer diagnosis. In this study, we conducted a comprehensive comparative study of the state-of-the-art machine learning methods that are promising in breast cancer diagnosis. For this purpose we analyze the largest mammography diagnosis database: Digital Database for Screening Mammography (DDSM). We considered various approaches for feature extraction including principal component analysis (PCA), nonnegative matrix factorization (NMF), spatial-temporal discriminant analysis (STDA) and those for classification including linear discriminant analysis (LDA), random forests (RaF), k-nearest neighbors (kNN), as well as deep learning methods including convolutional neural networks (CNN) and stacked sparse autoencoder (SSAE). This paper can serve as a guideline and useful clues for doctors who are going to select machine learning methods for their breast cancer computer-aided diagnosis (CAD) systems as well for researchers interested in developing more reliable and efficient methods for breast cancer diagnosis.

Źródło:

Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 6; 841-848
0239-7528

Pojawia się w:

Bulletin of the Polish Academy of Sciences. Technical Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 32.

Tytuł:

Foreign Affairs in Democratic and Republican Policies: a Comparative Study

Autorzy:

Stankiewicz, Wojciech

Powiązania:

https://bibliotekanauki.pl/articles/2026869.pdf

Data publikacji:

2005-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

Republican Policies
Democratic
Foreign Policy

Opis:

According to a nationwide survey conducted in July 2004 by the Pew Research Center for the People and the Press in association with the Council on Foreign Affairs 41% of those surveyed cited war, foreign policy and terrorism as the most important problems facing the United States of America. For the first time since the Vietnam era American voters are more concerned about international and defense issues than the economy or other domestic issues in the upcoming presidential election; thus the importance of foreign affairs in Democratic and Republican Parties’ platforms.

Źródło:

Polish Political Science Yearbook; 2005, 34; 131-151
0208-7375

Pojawia się w:

Polish Political Science Yearbook

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Language analytic ability in advanced FL learners: a comparative study

Autorzy:

Turula, Anna

Powiązania:

https://bibliotekanauki.pl/articles/577051.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

language aptitude
working memory
analytic language ability
CALP
BICS

Opis:

The article is intended as a voice in the discussion on language aptitude, with particular regard to its two components: memory and language analytic ability. It will be argued here that – unlike memory, favoured by Skehan (2003) – it may be the language analytic ability manifested, among others, as considerable dexterity in retrieving constructional schematizations to decode language innovation, which grows in importance with learner proficiency. It will also be argued here that both capacities, the said ability as well as memory, should be considered in relation to working memory, which should be understood in terms of storage and processing considered separately and ascribed to individual differences, and not as a homogenuous storage-and-processing space.

Źródło:

Linguistica Silesiana; 2011, 32; 275-287
0208-4228

Pojawia się w:

Linguistica Silesiana

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 34.

Tytuł:

Comparative Study of Techniques Used in Prediction of Student Performance

Autorzy:

Chauhan, Minakshi
Gupta, Varsha

Powiązania:

https://bibliotekanauki.pl/articles/1159721.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Classification
Clustering
Data Mining Techniques
Educational Data Mining
Fuzzy Logic

Opis:

Providing high quality education is a major concern for higher educational institutions. The quality of education in higher institutions can be assessed by the teaching and learning process. The quality of the teaching learning process depends on the performance of instructor as well as performance of students involved. Analysis and prediction of student performance is key step to identify the poor academic performance. On the basis of prediction, the corrective actions must be taken to improve performance of students and enhance the quality of education system. In this study we surveyed the techniques commonly used to predict the performance of students and also analysed the factors affecting the student academic performance.

Źródło:

World Scientific News; 2018, 113; 185-193
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 35.

Tytuł:

Asbestos base and asbestos free brake lining materials: Comparative study

Autorzy:

Shinde, Dinesh
Mistry, K. N.

Powiązania:

https://bibliotekanauki.pl/articles/1178764.pdf

Data publikacji:

2017

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

asbestos free
asbestos base
brake lining material
tribological properties

Opis:

Frictional brake lining materials are broadly made of asbestos as their constituent. But asbestos is dangerous for handling due to health hazardous. Asbestos has ample physical, mechanical and tribological properties. The material replacing it should have all these properties with no undermine. In this paper a study on asbestos base and asbestos free brake lining material is presented. Purpose behind this is combine the demerits of asbestos free and asbestos base materials with comparable properties. Some organic waste from farm like banana peel, palm karnel shell, were also tested for the replacement of asbestos and they found worth through comparison with each others.

Źródło:

World Scientific News; 2017, 61, 2; 192-198
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 36.

Tytuł:

A comparative study of two nuclear steel grades welded joints

Autorzy:

Sirohi, Sachin
Pandey, Chandan
Goyal, Amit

Powiązania:

https://bibliotekanauki.pl/articles/353262.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

microstructure
GTAW
P91 steel
P92 steel
δ ferrite

Opis:

In present work, two nuclear grade steel (P91, P92) are joined using the arc welding process. The welded joints were subjected to the heat treatment in order to restore the mechanical properties and overcome the heterogeneity across the joints. The weldments were studied for microstructure evolution and mechanical behavior under different condition of heat treatment. The variation in mechanical behavior obtained for the welded joints were tried to relate the microstructural evolution. After the normalizing based heat treatment, homogeneity with negligible δ ferrite across the welded joints was observed.

Źródło:

Archives of Metallurgy and Materials; 2020, 65, 2; 583-593
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 37.

Tytuł:

A comparative study on interactions of ionic collectors with orthoclase

Autorzy:

Ozun, S.
Atalay, M. U.

Powiązania:

https://bibliotekanauki.pl/articles/110609.pdf

Data publikacji:

2016

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

collector interactions
zeta potential
microflotation
FTIR
AFM
orthoclase

Opis:

Flotation and adsorption characteristics of the most commonly used cationic and anionic collectors with high grade orthoclase were investigated through the electrokinetic potential measurement, microflotation, Fourier transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM) studies. According to the obtained results, orthoclase had high flotation recovery with amine and oleic acid based (OAB) collector at certain pH ranges no flotation response was observed with petroleum sulfonate at different pHs. In contrast to the flotation recovery differences, the electrokinetic potential measurements, FTIR and AFM analyses presented similar adsorption characteristics for all collectors. The results of electrokinetic potential tests showed that amine had a strong influence on the zeta potential of orthoclase. While amine turned the zeta potentials of orthoclase from negative to positive, sulfonate and OAB collector provided slightly more negative zeta potentials at certain pHs. In the case of FTIR and AFM analyses, each collector-treated orthoclase (CTO) sample displayed similar characteristic FTIR bands of CH2 group and micro topographical collector coated patches with different intensities. However, the interactions of each collector with orthoclase surfaces were altered by rinsing with acetone indicating that the interactions were mostly through the electrostatic forces and/or hydrogen bonding.

Źródło:

Physicochemical Problems of Mineral Processing; 2016, 52, 2; 955-972
1643-1049
2084-4735

Pojawia się w:

Physicochemical Problems of Mineral Processing

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 38.

Tytuł:

Comparative Study on Fatigue Life of CFRP Composites with Damages

Autorzy:

Baran, Marta
Synaszko, Piotr
Lisiecki, Janusz
Kłysz, Sylwester

Powiązania:

https://bibliotekanauki.pl/articles/97921.pdf

Data publikacji:

2019

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Lotnictwa

Tematy:

CAI
CFRP
compression
Compression After Impact
damage
drop-weight impact test
fatigue test
residual strength

Opis:

In this work, the compressive residual strength tests results, Compression After Impact (CAI), are presented. The specimens were made of carbon-epoxy prepreg E722-02 UHS 130-14. Two variants of specimens were tested: samples undamaged and samples with damage that was centrally introduced by a drop-weight impact, as per the ASTM D7136/7136M standard. An impactor with potential energy equal to 15J and the type of support required by the standard were used. The size of impacted damages, defined as an area of damage on a plane perpendicular to the impact direction, and the equivalent diameter were specified using the flash thermography method. The tests were performed using the fixtures manufactured according to the ASTM D7137/7137M standard. The specimens were compressed to determine the residual strength. This value was afterwards used to specify the force levels for the fatigue tests. The fatigue tests were carried out under force control – with a sinusoidal shape, stress ratio R equal to 0.1 and frequency f 1Hz. Maximum force in a loading cycle Pmax was being increased after each thousand of cycles N until its value was close to the residual strength determined in the previously mentioned tests. In this work, the following relationships were presented: force-displacement P-δ for both static and fatigue tests and displacement-loading cycles δ-N for fatigue tests. A method of conducting the fatigue tests of CFRP composite was proposed, in which both the CAI specimens and CAI fixture were used. This allowed researchers to accelerate making initial comparisons between the two groups of specimens with damages – grouped relative to the way of conditioning.

Źródło:

Fatigue of Aircraft Structures; 2019, 11; 28-38
2081-7738
2300-7591

Pojawia się w:

Fatigue of Aircraft Structures

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Nurses’ turnover intention a comparative study between Iran and Poland

Autorzy:

Nikkhah-Farkhani, Zahra
Piotrowski, Andrzej

Powiązania:

https://bibliotekanauki.pl/articles/2085630.pdf

Data publikacji:

2020-07-24

Wydawca:

Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi

Tematy:

job satisfaction
nurses
employment
work–family conflict
turnover intention
workplace support

Opis:

BackgroundTurnover rates among nurses are much higher than in other professions. This poses a challenge for health managers in all countries. The purpose of this study was to investigate the factors affecting nurses’ turnover and the differences in this area between Iran and Poland.Material and MethodsIn this descriptive cross-sectional study, the population consisted of nurses working in state-owned hospitals in Poland (N = 165) and in Iran (N = 200). Data were collected using the Turnover Intention Scale, the Job Satisfaction Scale, the Work–Family Conflict Scale and the Workplace Support Scale. Use was made of the AMOS 24 and SPSS 22 software for data analysis.ResultsThe results showed that the predicted factors of nurses’ turnover intention in Poland and Iran were different. Workplace support and job satisfaction can reduce turnover intention among Polish nurses while the work–family conflict influences nurses’ turnover intention in Iran.ConclusionsProviding a flexible work plan in Iranian hospitals and enhancing teamwork and improving the spirit of cooperation in Polish hospitals could reduce nurses’ turnover intention in these 2 countries.

Źródło:

Medycyna Pracy; 2020, 71, 4; 413-420
0465-5893
2353-1339

Pojawia się w:

Medycyna Pracy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

Comparative Study of Visual Feature for Bimodal Hindi Speech Recognition

Autorzy:

Upadhyaya, P.
Farooq, O.
Abidi, M. R.
Varshney, P.

Powiązania:

https://bibliotekanauki.pl/articles/177705.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Aligarh Muslim University audio visual corpus
AVASR
bimodal
DCT
DWT

Opis:

In building speech recognition based applications, robustness to different noisy background condition is an important challenge. In this paper bimodal approach is proposed to improve the robustness of Hindi speech recognition system. Also an importance of different types of visual features is studied for audio visual automatic speech recognition (AVASR) system under diverse noisy audio conditions. Four sets of visual feature based on Two-Dimensional Discrete Cosine Transform feature (2D-DCT), Principal Component Analysis (PCA), Two-Dimensional Discrete Wavelet Transform followed by DCT (2D-DWT-DCT) and Two-Dimensional Discrete Wavelet Transform followed by PCA (2D-DWT-PCA) are reported. The audio features are extracted using Mel Frequency Cepstral coefficients (MFCC) followed by static and dynamic feature. Overall, 48 features, i.e. 39 audio features and 9 visual features are used for measuring the performance of the AVASR system. Also, the performance of the AVASR using noisy speech signal generated by using NOISEX database is evaluated for different Signal to Noise ratio (SNR: 30 dB to -10 dB) using Aligarh Muslim University Audio Visual (AMUAV) Hindi corpus. AMUAV corpus is Hindi continuous speech high quality audio visual databases of Hindi sentences spoken by different subjects.

Źródło:

Archives of Acoustics; 2015, 40, 4; 609-619
0137-5075

Pojawia się w:

Archives of Acoustics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Team Based Learning as an Instructional Strategy: A Comparative Study

Autorzy:

Pardamean, Bens
Donovan, Jerome
Masli, Eryadi
Suparyanto, Teddy
Muljo, Hery
Prabowo, Harjanto

Powiązania:

https://bibliotekanauki.pl/articles/1997566.pdf

Data publikacji:

2017-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

team based learning
instructional strategy
learning outcome
readiness assurance

Opis:

The use of Team Based Learning (TBL) as an instructional strategy in undergraduate health science curricula has been identified as a way to improve student learning outcomes. However, comparative studies of the use of TBL in business subjects in different countries are rare. This research is a first step to provide comparative quantitative empirical evidence for the usefulness of TBL, leading to continuous improvement in the learning process. It compares the results of Indonesian and Australian students in two different business classes. The finding reveals that TBL has some usefulness in enhancing student learning outcomes in business subjects.

Źródło:

The New Educational Review; 2017, 50; 134-145
1732-6729

Pojawia się w:

The New Educational Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

A comparative study of super-regenerative receivers for BAN applications

Autorzy:

Saleh, S.
Hamdy, G.

Powiązania:

https://bibliotekanauki.pl/articles/397935.pdf

Data publikacji:

2017

Wydawca:

Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki

Tematy:

super-regenerative receiver
phase detector
on-off keying
QPSK demodulator
odbiornik superreakcyjny
detektor fazy
kluczowanie on-off
demodulator QPSK

Opis:

Super-regenerative receivers have regained attention due to their unique properties making them suitable candidates for applications necessitating simplicity and ultra-low power consumption such as Body Area Networks (BAN) targeting medical devices and near body entertainment devices. In this paper, several super-regenerative receivers are proposed showing the flexibility and the ability to accommodate proper demodulation of on-off-keying (OOK) and Multi-level (M-ary) PSK modulated signal with a very limited power budget. Circuit implementation and simulation results are shown.

Źródło:

International Journal of Microelectronics and Computer Science; 2017, 8, 4; 133-138
2080-8755
2353-9607

Pojawia się w:

International Journal of Microelectronics and Computer Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

A comparative study on end-of-life vehicles network design

Autorzy:

Merkisz-Guranowska, Agnieszka

Powiązania:

https://bibliotekanauki.pl/articles/949845.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

end-of-life vehicles
ELV reverse logistics
ELV recycling network
ELV network design
pojazdy wycofane z eksploatacji
logistyka pojazdów ELV
recykling pojazdów

Opis:

This paper investigates the current research in the field of the end-of-life vehicles (ELV) recycling network. The optimisation of the location of a network facilities in forward logistics in the automotive industry has received a lot of attention for many years but the reverse logistics for ELVs has been a subject of investigations since the beginning of 21st century. ELV recycling network design gained in popularity after the European Union and other countries like Japan, South Korea and recently China introduced legal obligations to organize a collecting or recycling network for used vehicles. When regulations are introduced, there is a need for a systemic solution to the problem, especially since the obligation to create a collection network is often accompanied by requirements related to its accessibility for vehicle owners or efficiency of operation. With the growing scope of legal regulations, companies or organisations responsible for the network are forced to redesign the existing recycling infrastructure in a given area so that it meets specific requirements. Initially, the most important criterion was network availability. Currently, the same importance is attached to economic, environmental and social aspects in order to meet the sustainability criteria. In this paper, forty one peer-reviewed published studies focused on network design were classified. Its main purpose is to provide an extensive review of state-of-the-art research published in the period 2000-2019. The scope of the review is limited to network design problems including facility location and flow allocation problems. Only papers that present mathematical models are considered. Studies on the ELV network design are classified based on: type of supply chain, type of network, optimisation problem, type of facilities, modelling technique, single/multi objectivity, objective function, period of time, solution approach and scope of implementation. The final part of the paper includes discussion of the methodology of the reviewed studies and some recommendations for future research area.

Źródło:

Archives of Transport; 2020, 54, 2; 107-123
0866-9546
2300-8830

Pojawia się w:

Archives of Transport

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

Spencer and Sepehri Mourning Demise of poet friends: A comparative study

Autorzy:

Roozbeh, Roohollah

Powiązania:

https://bibliotekanauki.pl/articles/1179018.pdf

Data publikacji:

2017

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Sepehri elegy
Spencer
poet friends

Opis:

Two poets mourning the death of their poet friends are Sepehri and Spencer in different contexts of Iran and England. The two poets who are dead are Forough and Sidney who have been great poets and have been admired by the mourning poets. To remember their friends, they have written poems to enliven the memory of their dead friends. Sepehri considers Forough, a female Iranian poet, a friend and a great poet. The methodology of this article is based on comparative literature with the emphasis on American school of comparative literature which considers aesthetics and attention to critique and analysis. This school regards literature as a universal phenomenon and in relation to other branches of human knowledge and fine arts. This school does not accept any boundaries in the field of comparative literature and believes in the study of literature as a whole, and compares literature with other arts and human sciences. The followers of this school believe that comparative literature is a method that broadens the view of man in the study of literary works and is an approach to go beyond national boundaries and believe the study of literary phenomena is between two or more different literatures or the study of the relation between a literary phenomenon and various sciences

Źródło:

World Scientific News; 2017, 87; 246-250
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

Diversity of farm indebtedness in Latvia and Poland: a comparative study

Autorzy:

Bratka, V.
Praulins, A.

Powiązania:

https://bibliotekanauki.pl/articles/573807.pdf

Data publikacji:

2009

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

farm indebtedness
Latvia
Polska
debt
liability
farm
comparative analysis
capital
farming
field crop
dairy farm
financing
agriculture
indebtedness

Opis:

The use of borrowed capital in Latvian agricultural holdings of different economic size and type of farming is analyzed, as well as a comparative analysis with Polish agricultural holdings is performed, defining essential specificities of financing activities with equity or loan in each state. The liabilities burden in Latvian field crop and dairy farms is calculated and discussed in detail. For the assessment ratio of the statistical significance of differences between Latvian and Polish agricultural holdings the debt-to-equity and total liabilities per ESU, per 1 ha UAA and 1 LU, a statistical testing is carried out and main conclusions about an impact of the type of farming, the economic size and the chronological factor are formulated.

Źródło:

Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego; 2009, 06(21)
2081-6960

Pojawia się w:

Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 46.

Tytuł:

Carsharing as an example of smart mobility – comparative study Poland–Germany

Autorzy:

Wiktorowska-Jasik, Anna

Powiązania:

https://bibliotekanauki.pl/articles/29521029.pdf

Data publikacji:

2023

Wydawca:

Akademia Morska w Szczecinie. Wydawnictwo AMSz

Tematy:

carsharing
sustainable transport
smart urban mobility
transport management
comparative study

Opis:

Modern cities are focused on the implementation of the assumptions of sustainable transport development. They invest in modern solutions and intelligent technologies that improve the mobility of residents and reduce energy consumption and pollution emitted by means of transport. This article deals with issues of smart urban mobility and carsharing, in particular, as one of the examples of the implementation of sustainable transport policy. The objective of this article is a comparative analysis of the pace of development of the carsharing markets in Poland and Germany. The analysis is carried out using statistical and comparative analysis methods. In addition, for a complete presentation of the problem raised, a literature analysis is performed. The research area covers two countries, Poland and Germany, from which ten cities for each are selected for analysis. In addition, to achieve the assumed objective, we also present the basic assumptions of smart mobility and solutions used in cities, and then determine the increase in the number of cars driving in the carsharing system. In addition, the factors influencing the change in transport patterns of urban residents are analyzed, and the importance of modern communication technologies in the development of carsharing systems is emphasized. The results of the analysis can be used as a tool to support the decisions of city authorities in the field of transportation management and, in particular, the implementation of carsharing systems. They also present the dependencies of the spread of this solution in a given urban space. They indicate the largest problems that may affect the introduction of this solution as an element of the city’s transportation system.

Źródło:

Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2023, 74 (146); 75-82
1733-8670
2392-0378

Pojawia się w:

Zeszyty Naukowe Akademii Morskiej w Szczecinie

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

Comparative study on cytotoxicity activity of N-α-acylarginine ethyl ester

Autorzy:

Mhatre, J.D.
Singare, P.U.

Powiązania:

https://bibliotekanauki.pl/articles/412185.pdf

Data publikacji:

2013

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

cytotoxicity
arginine
IC50
microbicidal
monolaurin

Opis:

Amino-acid derived compounds, for example N-α-lauroylarginine ethyl ester (LAE), N-α-myristoylarginine ethyl ester (MAE) and a 1:1 mixture of N-α-myristoylarginine ethyl ester with monolaurin (MAE + MLN) are examined for their cytotoxicity towards L929-Mouse connective tissue to explore their use as microbicidal agent, in comparison to sodium dodecylsulfate (SDS) as an anionic control detergent. MTT (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide Cytotoxicity assay method was used to determine IC50 value. Cytotoxicity of MAE is found to be more toxic as compared to LAE, having IC50 value 0.052 mg/ml against 0.68 mg/ml of LAE. But MAE when mixed with monolaurin (1:1), showed less toxicity with IC50 0.89 mg/ml. These results suggest that a combination of MAE and Monolaurin can be a potential candidate for studying its microbicidal properties.

Źródło:

International Letters of Chemistry, Physics and Astronomy; 2013, 8, 1; 1-7
2299-3843

Pojawia się w:

International Letters of Chemistry, Physics and Astronomy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

A comparative study of corporate credit ratings prediction with machine learning

Autorzy:

Doğan, Seyyide
Büyükkör, Yasin
Atan, Murat

Powiązania:

https://bibliotekanauki.pl/articles/2175830.pdf

Data publikacji:

2022

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

credit rating
credit risk
machine learning

Opis:

Credit scores are critical for financial sector investors and government officials, so it is important to develop reliable, transparent and appropriate tools for obtaining ratings. This study aims to predict company credit scores with machine learning and modern statistical methods, both in sectoral and aggregated data. Analyses are made on 1881 companies operating in three different sectors that applied for loans from Turkey’s largest public bank. The results of the experiment are compared in terms of classification accuracy, sensitivity, specificity, precision and Mathews correlation coefficient. When the credit ratings are estimated on a sectoral basis, it is observed that the classification rate considerably changes. Considering the analysis results, it is seen that logistic regression analysis, support vector machines, random forest and XGBoost have better performance than decision tree and k-nearest neighbour for all data sets.

Źródło:

Operations Research and Decisions; 2022, 32, 1; 25--47
2081-8858
2391-6060

Pojawia się w:

Operations Research and Decisions

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Aktywność fizyczna pielęgniarek. Badania porównawcze
Physical Activity of Nurses.Comparative Study

Autorzy:

Chuchra, Maria
Gorbaniuk, Julia

Powiązania:

https://bibliotekanauki.pl/articles/2035229.pdf

Data publikacji:

2019-12-31

Wydawca:

Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL

Tematy:

pielęgniarki
aktywność fizyczna
styl życia
nurses
physical activity
lifestyle

Opis:

Pielęgniarki są ważnymi promotorkami zdrowia społeczności, więc muszą bardziej świadomie dbać o własne zdrowie, aby służyć jako rzeczniczki promocji zdrowia i wzory do naśladowania. Aktywność fizyczna jest jednym z istotnych wymiarów prozdrowotnych zachowań i zdrowego stylu życia. Celem niniejszego artykułu było porównanie aktywności fizycznej w czasie wolnym od pracy pielęgniarek i kobiet wykonujących inne zawody. Przebadano 100 pielęgniarek i 100 osób z grupy kontrolnej. Kontrolowano zmienne demograficzne, dobierając osoby badane „metodą doboru parami” pod względem dwóch zmiennych – miejsca zamieszkania oraz wieku respondentek. W badaniach posłużono się zbudowanym dla niniejszych celów badawczych kwestionariuszem ankiety. Badania ujawniły, że różnice dotyczą nie tyle form aktywności ruchowej, co jej częstości i jest to zazwyczaj związane z wiekiem badanych. Najczęstszymi formami aktywności fizycznej w obu grupach są spacery i jazda na rowerze, ale pielęgniarki podejmują je znacznie rzadziej, gdyż mają istotniej mniej czasu wolnego, zarówno w dni robocze, jak i wolne od pracy. Głównym motywem aktywności fizycznej dla pielęgniarek jest zdrowie (52%), zaś dla grupy kontrolnej przyjemność (35%). Pielęgniarki także istotnie częściej wykonują badania profilaktyczne oraz są przekonane o konieczności prowadzeniu zdrowego stylu życia.
Nurses are important promoters of health in society, so they must consciously take care of their health to serve as spokespersons for a healthy lifestyle and role models. Physical activity is one of the significant dimensions of health-related behaviors and a healthy lifestyle. The purpose of this article was to compare physical activity in the free time of nurses and women performing other professions. The research included 100 nurses and 100 women doing other professions. The respondents were tested with the matched pair-selection method, taking into consideration two variables: a place of residence and age. The survey questionnaire that was used was prepared for the purpose of a smaller study. The research revealed that the main difference relates not to the forms of physical activity, but its frequency and this is usually related to the age of the participants. The most common forms of physical activity in both groups are walking and cycling. However, nurses practice them with much less frequency. The essential reason for this is because they have significantly less free time, both on working days and holidays. The main motive of physical activity for nurses is health (52%) while in the control group – pleasure (35%). Nurses also significantly more often perform prophylactic and are convinced about the necessity of leading a healthy lifestyle.

Źródło:

Roczniki Teologiczne; 2019, 66, 10; 96-109
2353-7272

Pojawia się w:

Roczniki Teologiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 50.

Tytuł:

A comparative study of Japanese and US American medical device industries

Autorzy:

Tsutsumi, E.

Powiązania:

https://bibliotekanauki.pl/articles/99715.pdf

Data publikacji:

2011

Wydawca:

Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych

Tematy:

diversity
medical device
risks
endoscope development
competitiveness
IDE
Investigational Device Exemption

Opis:

Japan has an unfavorable balance of trade in medical devices, and large Japanese companies hesitate to enter the medical device industry. This paper investigates the process of the expansion of the American medical device industry. It was concluded that the propensity for risk in the U.S.A. and Japan is different; both countries have different industries and ways of thought which construct their manufacturing cultures. A system called Investigational Device Exemption (IDE) indicates that US Medical Industries are in a stronger position than their Japanese counterparts. The American system allows purchasing of developing medical devices before pharmaceutical acquisition. Japan has no foster policy for medical venture, nor are medical devices tested strictly before pharmaceutical approval. It is predicted that the Japanese economy will no longer be able to grow in a stable manner just by relying on the large corporation-led export of manufactured goods, whereas those SMEs with the sophisticated technology, by accommodating the needs of the medical institutions, will be highly competitive internationally in a narrow and specialized market. The author points out that promotion for the medical device industry may help Japanese economic revitalization. Japanese companies and their government will have to support developing "diversity" of the players.

Źródło:

Journal of Machine Engineering; 2011, 11, 3; 72-86
1895-7595
2391-8071

Pojawia się w:

Journal of Machine Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 51.

Tytuł:

Lightning Strike Protection of Aircraft Composite Structures: Analysis and Comparative Study

Autorzy:

Katunin, A.

Powiązania:

https://bibliotekanauki.pl/articles/97865.pdf

Data publikacji:

2016

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Lotnictwa

Tematy:

lightning strike protection
conductive composite
aircraft structures

Opis:

Lightning strikes are a serious problem during operation of aircraft due to the increasing applicability of polymeric composites in aircraft structures and the weak electrical conducting properties of such structures. In composite structures, lightning strikes may cause extended damage sites which require to be appropriately maintained and repaired leading to increased operational costs. In order to overcome this problem various lightning strike protection solutions have been developed. Some of them are based on the immersion of metallic elements and particles while others use novel solutions such as intrinsically conductive polymers or other types of highly conductive particles including carbon nanotubes and graphene. The concept of fully organic electrically conductive composites based on intrinsically conductive polymers is currently being developed at the Silesian University of Technology. The results obtained in numerous tests, including concerning electrical conductivity and the capability to carry on high-magnitude electrical charges as well as certain operating properties need to be compared with existing solutions in lightning strike protection of aircraft. The following study presents the properties of the material developed for lightning strike protection and a comparative study with other solutions.

Źródło:

Fatigue of Aircraft Structures; 2016, 8; 49-54
2081-7738
2300-7591

Pojawia się w:

Fatigue of Aircraft Structures

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 52.

Tytuł:

Comparative study of flow condensation in conventional and small diameter tubes

Autorzy:

Mikielewicz, D.
Andrzejczyk, R.

Powiązania:

https://bibliotekanauki.pl/articles/240398.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

kondensacja w przepływie
minikanały
wymiana ciepła
flow condensation
heat transfer
minichannels

Opis:

Flow boiling and flow condensation are often regarded as two opposite or symmetrical phenomena. Their description however with a single correlation has yet to be suggested. In the case of flow boiling in minichannels there is mostly encountered the annular flow structure, where the bubble generation is not present. Similar picture holds for the case of inside tube condensation, where annular flow structure predominates. In such case the heat transfer coefficient is primarily dependent on the convective mechanism. In the paper a method developed earlier by the first author is applied to calculations of heat transfer coefficient for inside tube condensation. The method has been verified using experimental data from literature on several fluids in different microchannels and compared to three well established correlations for calculations of heat transfer coefficient in flow condensation. It clearly stems from the results presented here that the flow condensation can be modeled in terms of appropriately devised pressure drop.

Źródło:

Archives of Thermodynamics; 2012, 33, 2; 67-83
1231-0956
2083-6023

Pojawia się w:

Archives of Thermodynamics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 53.

Tytuł:

The Cultural Comparative Study of the Roma Community and Bohemians. Prolegomena

Autorzy:

Matkowska, Justyna

Powiązania:

https://bibliotekanauki.pl/articles/1996394.pdf

Data publikacji:

2017-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

bohemia
Romani people
Gypsies
the Young Poland
culture

Opis:

The submitted article is based on a fragment of a thesis entitled “The Image of the Roma and Artistic Bohemia in the Literature of the Young Poland”. The subject matter of the research is the description of two communities living in the period of the Young Poland: the Roma people, and Bohemians. The adopted research method embraces the range of broadly defined anthropological research, including analysis and interpretation of texts in a cultural context, and, above all, various aspects of life referring to Bohemians and the Roma community in Poland at the turn of the 19th and 20th centuries. The research objective of this article is to show the similarities and differences between Bohemians of the Young Poland and the Roma living in this period, concerning originality of their lifestyle, customs, outfit and other phenomena. The in-depth analysis of the life aspects of the Roma and Bohemians from the Young Poland has demonstrated the similarities and differences between the two groups. They both functioned as “others” who had no relationship with the society. They were accompanied by a sense of loneliness, outsiderness, consciousness of rejection, tragedy of their situation and a sense of incomprehension and injustice.

Źródło:

Kultura i Edukacja; 2017, 4(118); 138-150
1230-266X

Pojawia się w:

Kultura i Edukacja

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 54.

Tytuł:

Comparative study of climate change consequences in Poland and in Turkey

Autorzy:

Dubel, Anna
Bas, Kaan

Powiązania:

https://bibliotekanauki.pl/articles/1367946.pdf

Data publikacji:

2016-12-31

Wydawca:

Wyższa Szkoła Bankowa we Wrocławiu

Tematy:

climate change
taxonomic distance
macroeconomy
sustainable development

Opis:

The paper presents a comparative study of basic climate change impacts’ categories and analyses of climate change consequences in a structured way in relation to macroeconomic and sustainable development indicators in Poland and in Turkey. Taxonomic distance method was used to compare the basic environmental and economic aspects between the countries. The results of the comparative study of basic macroeconomic and sustainable development indicators were elaborated to provide background for the subsequently discussed identification of the mutual learning possibilities between Poland and Turkey in relation to climate adaptation and climate change mitigation actions. The comparison revealed the resemblance of the countries in many aspects so that the peer learning related to climate change adaptation and mitigation actions could be possible.

Źródło:

Central and Eastern European Journal of Management and Economics (CEEJME); 2016, 4; 293-305
2353-9119

Pojawia się w:

Central and Eastern European Journal of Management and Economics (CEEJME)

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 55.

Tytuł:

Comparative study of ROS on embedded system for a mobile robot

Autorzy:

Kim, M. S.
Delgado, R.
Choi, B. W.

Powiązania:

https://bibliotekanauki.pl/articles/385189.pdf

Data publikacji:

2018

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

Robot Operation System
mobile robot
embedded system
navigation
SLAM
path planner

Opis:

This paper presents a comparative study of Robot Operating System (ROS) packages for mobile robot navigation on an embedded system. ROS provides various libraries and tools in developing complex robot software. We discuss the process of porting ROS to an open embedded platform, which serves as the main controller for a mobile robot. In the case of driving the robot, ROS provides local path planners such as the base, elastic band, and timed elastic band. The local planners are compared and analyzed in terms of accuracy in tracking the global path conducted on a robot model using Gazebo, 3D simulation tool provided by ROS. We also discussed the difference in performance of deploying ROS packages on a personal computer and on the embedded environment. Experiments were performed by controlling two different mobile robots with results showing that tracking error is highly dependent on the goal tolerance. This study will serve as a promising metric in improving the performance of mobile robots using ROS navigation packages.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2018, 12, 3; 61-67
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 56.

Tytuł:

Typology of think tanks: A comparative study in Finland and Scotland

Autorzy:

Mykkänen, Markus
Freshwater, Neil

Powiązania:

https://bibliotekanauki.pl/articles/1968708.pdf

Data publikacji:

2021-01-01

Wydawca:

Academicus. International Scientific Journal publishing house

Tematy:

think tanks
decision making
advocacy
policy making
Finland
Scotland

Opis:

This paper provides a comparative analysis of current Finnish and Scottish think tanks and reviews how think tanks in these countries have evolved, how think tanks seek to influence decision making and engage with their stakeholders. To address the ways of influence this paper looks how Finnish and Scottish think tanks describe themselves and how they use publications in their advocacy. Conducted content analysis indicates that usually registered association based Finnish think tanks are generally more research-focused organisations, who overall deploy more research publications for advocacy than the company based Scottish think tanks. Findings also reveal that the number of think tanks in both countries has greatly increased in the last two decades due to the political challenges with European Union and national politics. The paper provides a new approach to study think tanks in national contexts.

Źródło:

Academicus International Scientific Journal; 2021, 12, 23; 72-90
2079-3715
2309-1088

Pojawia się w:

Academicus International Scientific Journal

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 57.

Tytuł:

Comparative Study of Iron Removal from Groundwater Using Low Cost Adsorbents

Autorzy:

Raheem, Shahad A.
Kadhim, Entidhar Jawad
Abdulhasan, Maryam Jawad

Powiązania:

https://bibliotekanauki.pl/articles/2202201.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

groundwater contamination
iron removal
adsorption
filtration
drinking water
sawdust
barley husk

Opis:

Iron is one of the groundwater contaminants that negatively impact health and the environment. This study is attempted at introducing low cost natural adsorbent for that adsorbs iron from synthetically prepared iron water. Sawdust and barley husks were used as a filter media, either alone or at different mixing ratio of sawdust/barley husks (1:1, 0.5:1, 1:0.5), to study the effect of adsorbent dose on the removal efficiency. Synthetic water of iron was used at different initial concentrations (10, 25, 40, 65, and 80) mg/L to study the effect of initial iron concentration on the removal efficiency. The filtration process was conducted at a surface loading rate of 3 m3/m2.hr. The results showed higher removal efficiency with the increase of iron initial concentration. The results indicated that removal of iron ranged (90–99.34%) for all types of filter media. The best removal was found to be 99.34% at a mixing ratio of 0.5:1 (sawdust/barley husks) at 80 mg/L initial concentration. As a conclusion, Removal of iron was very successfully observed with absorbent materials sawdust and barley husk, which makes the treatment of iron even possible in rural areas and when high concentration of iron is present.

Źródło:

Journal of Ecological Engineering; 2022, 23, 11; 18--23
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 58.

Tytuł:

A Comparative Study of Objective and Subjective Assessment of Occupational Risk

Autorzy:

Koradecka, D.
Pośniak, M.
Widerszal-Bazyl, M.
Augustyńska, D.
Radkiewicz, P.

Powiązania:

https://bibliotekanauki.pl/articles/91117.pdf

Data publikacji:

2010

Wydawca:

Centralny Instytut Ochrony Pracy

Tematy:

subjective assessment
objective assessment
perception
measurements
working environment
risk
DCS model

Opis:

Measurements of dangerous, harmful and annoying factors in the working environment are used to assess occupational risk. Surveys on workers’ subjective perception of risk are used, too. This study aimed to compare subjective assessment of work-related factors with their objective measurements and a national database on occupational risk. Spearman’s correlation analysis, stepwise regression analysis and structural modelling were used to determine the relationship between subjective and objective risk assessment and to acquire knowledge about the role of psychosocial job characteristics as predictors of subjective assessment. Subjective assessment of hazards was related not only to their objective measurements but also to psychosocial job characteristics, workers’ individual characteristics and work load. Even though subjective and objective assessments of hazard are strongly related, they are distinct phenomena. Hence, risk assessment should be carried out with both objective and subjective methods.

Źródło:

International Journal of Occupational Safety and Ergonomics; 2010, 16, 1; 3-22
1080-3548

Pojawia się w:

International Journal of Occupational Safety and Ergonomics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 59.

Tytuł:

Olimpijczycy Pomorza Zachodniego (Studium porównawcze)
The Westpomeranian Olympians - a comparative study

Autorzy:

Laskiewicz, H.

Powiązania:

https://bibliotekanauki.pl/articles/789973.pdf

Data publikacji:

2005

Wydawca:

Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego

Tematy:

Pomorze Zachodnie
sportowcy
medale olimpijskie
konferencje
Szczecin konferencja
dyscypliny sportowe
wykaz olimpijczykow
igrzyska olimpijskie

Źródło:

Zeszyty Naukowe. Prace Instytutu Kultury Fizycznej. Uniwersytet Szczeciński; 2005, 22(424)
1640-6818

Pojawia się w:

Zeszyty Naukowe. Prace Instytutu Kultury Fizycznej. Uniwersytet Szczeciński

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 60.

Tytuł:

Comparative study of the color centers in some fluoride single crystals

Autorzy:

Kaczmarek, Sławomir M.
Bensalah, Amina.
Boulon, Georges.
Kwaśny, Mirosław.
Warchoł, Stanisław.
Drozdowski, Winicjusz.

Powiązania:

Biuletyn Wojskowej Akademii Technicznej 2005, nr 1, s. 29-44

Data publikacji:

2005

Tematy:

Monokryształy badanie
Absorpcja

Opis:

Porównawcze badania centrów barwnych niektórych monokryształów fluorków.
Rys.; Bibliogr.; Abstr., streszcz.

Dostawca treści:

Bibliografia CBW

/5

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Skocz do pozycji: 61.

Tytuł:

Accessibility of public services in districts of Warsaw: a comparative study

Autorzy:

Małachowski, Aleksander
Dąbski, Maciej
Wilk, Waldemar

Powiązania:

https://bibliotekanauki.pl/articles/946942.pdf

Data publikacji:

2020

Wydawca:

Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych

Tematy:

Socio-economic inequalities
public services
Warsaw
city districts
distance-decay pattern

Opis:

The aim of this work is to verify whether accessibility to public services in city districts of Warsaw, corresponds to real-estate prices. We introduce a new index named the “Urban Services Accessibility Index” (USAI) which compares the availability of public services within districts of a city in three dimensions: access to healthcare, access to education, and availability of public transport. We found that the districts of Śródmieście, Ochota and Żoliborz have the highest apartment prices and USAI values. Warsaw exhibits a clear distance-decay pattern in USAI values which correlates well with average apartment prices. This pattern results from poor development of public services in peripheral city districts (e.g. Bemowo, Białołęka, Wilanów) while the central district of Śródmieście stands out as the unquestionable leader in terms of accessibility to the mentioned services. USAI proved itself to be a robust method in the comparative analysis of city districts’ development.

Źródło:

Miscellanea Geographica. Regional Studies on Development; 2020, 24, 3; 176-182
0867-6046
2084-6118

Pojawia się w:

Miscellanea Geographica. Regional Studies on Development

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 62.

Tytuł:

On analog comparators for CMOS digital pixel applications. A comparative study

Autorzy:

Jendernalik, W.

Powiązania:

https://bibliotekanauki.pl/articles/200565.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

CMOS image sensor
CMOS digital pixel
analog comparator
fixed-pattern noise
FPN
CMOS
matryca świałoczuła CMOS
piksel cyfrowy
komparator analogowy
hałas ustalony

Opis:

Voltage comparator is the only - apart from the light-to-voltage converter - analog component in the digital CMOS pixel. In this work, the influence of the analog comparator nonidealities on the performance of the digital pixel has been investigated. In particular, two versions of the digital pixel have been designed in 0.35 μm CMOS technology, each using a different type of analog comparator. The properties of both versions have been compared. The first pixel utilizes a differential comparator with the increased size and improved electrical performance. The second structure is based on a very simple non-differential comparator with a reduced size and degraded performance. Theoretical analysis of the comparator nonideality effect on the quality of the image obtained from the digital pixel matrix as well as simulation results are provided.

Źródło:

Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 2; 271-278
0239-7528

Pojawia się w:

Bulletin of the Polish Academy of Sciences. Technical Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 63.

Tytuł:

Information about real estate – a comparative study of Poland and Latvia

Autorzy:

Kocur-Bera, Katarzyna
Parsova, Velta

Powiązania:

https://bibliotekanauki.pl/articles/145589.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

dane katastralne
lokalizacja nieruchomości
kataster
cadastral data
INSPIRE
differences and similarities in scope of information

Opis:

Each European Union Member State keeps a register of data on properties located in its territory. The number, type and scope of these properties are determined by each Member State’s needs. The INSPIRE Directive enables the scope of data to be harmonised, and the data to be made available for the purpose of assisting legislators in taking decisions and actions likely to have either direct or indirect impact on the environment. The aim of the study was to indicate the basic differences between the data contained in Polish and Latvian cadastres. Unlike other similar studies analysing the content of data in the cadastre, this article pays special attention to the number of available sets of data about the parcel and its surroundings, the ease of access to these data and the possibility for acquiring them by an interested party without incurring additional fees. This is particularly important in activities related to spatial management and the development of an information society. The results show that in both countries, the decision makers have approached the INSPIRE Directive differently. Direct analyses conducted for the cities of Wrocław (Poland) and Riga (Latvia) demonstrated that the information system in Wrocław contains a considerably greater scope of information available free of charge, is easier to use and offers more services. The Latvian Republic’s spatial information system provides a less-developed scope of information about real estate (without fees) that is dispersed on several websites, which slows down and hinders its use.

Źródło:

Geodesy and Cartography; 2019, 68, 2; 283-303
2080-6736
2300-2581

Pojawia się w:

Geodesy and Cartography

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 64.

Tytuł:

A Comparative Study of Single- and Dual-Threshold Voltage SRAM Cells

Autorzy:

Kushwaha, P.
Chaudhry, A.

Powiązania:

https://bibliotekanauki.pl/articles/308384.pdf

Data publikacji:

2011

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

5T SRAM
65 nm CMOS technology
6T SRAM
7T SRAM
low power SRAM
power reduction technique

Opis:

In this paper, a comparison has been drawn between 5 transistor (5T), 6T and 7T SRAM cells. All the cells have been designed using both single-threshold (conventional) and dual-threshold (dual-Vt) voltage techniques. Their respective delays and power consumption have been calculated at 180 nm and 65 nm CMOS technology. With technology scaling, power consumption decreases by 80% to 90%, with some increase in write time because of the utilization of high- Vt transistors in write critical path. The results show that the read delay of 7T SRAM cell is 9% lesser than 5T SRAM cell and 29% lesser than 6T SRAM cell due to the lower resistance of the read access delay path. While read power of 5T SRAM cell is reduced by 10% and 24% as compared to 7T SRAM, 6T SRAM cell respectively. The write speed, however, is degraded by 1% to 3% with the 7T and 5T SRAM cells as compared to the 6T SRAM cells due to the utilization of single ended architecture. While write power of 5T SRAM cell is reduced by up to 40% and 67% as compared to 7T SRAM, 6T SRAM cell respectively.

Źródło:

Journal of Telecommunications and Information Technology; 2011, 4; 124-130
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 65.

Tytuł:

A Comparative Study of Various Edge Detection Techniques for Underwater Images

Autorzy:

Awalludin, Ezmahamrul Afreen
Arsad, Tengku Noorfarahana T.
Yussof, Wan Nural Jawahir Hj Wan
Bachok, Zainudin
Hitam, Muhammad Suzuri

Powiązania:

https://bibliotekanauki.pl/articles/2058499.pdf

Data publikacji:

2022

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

edge detection
mean square error
median filtering
peak signal to noise
wiener filtering

Opis:

Nowadays, underwater image identification is a challenging task for many researchers focusing on various ap plications, such as tracking fish species, monitoring coral reef species, and counting marine species. Because underwater im ages frequently suffer from distortion and light attenuation, pre-processing steps are required in order to enhance their quality. In this paper, we used multiple edge detection techniques to determine the edges of the underwater images. The pictures were pre-processed with the use of specific techniques, such as enhancement processing, Wiener filtering, median filtering and thresholding. Coral reef pictures were used as a dataset of underwater images to test the efficiency of each edge detection method used in the experiment. All coral reef image datasets were captured using an underwater GoPro camera. The performance of each edge detection technique was evaluated using mean square error (MSE) and peak signal to noise ratio (PSNR). The lowest MSE value and the highest PSNR value represent the best quality of underwater images. The results of the experiment showed that the Canny edge detection technique outperformed other approaches used in the course of the project.

Źródło:

Journal of Telecommunications and Information Technology; 2022, 1; 23--33
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 66.

Tytuł:

Comparative study of pterygium excision with suture and sutureless conjunctival autograft

Autorzy:

Khandelwal, Richa
Tigga, Mary Jenifa
Metri, Rajashekar
Deshpande, Anand
Tarun

Powiązania:

https://bibliotekanauki.pl/articles/40570859.pdf

Data publikacji:

2024-06-30

Wydawca:

Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego

Tematy:

astigmatism
autologous blood conjunctival autograft
pterygium

Opis:

Introduction and aim. This is a prospective interventional study to compare corneal astigmatism before and after pterygium excision with conjunctival autograft, to determine the difference in mean corneal curvatures before and after pterygium excision, to evaluate the safety and efficacy of autologous blood technique, and sutured conjunctival autograft for primary pterygium. Material and methods. Patients were divided into group A – pterygium excision+sutured conjunctival limbal autograft and group B – pterygium excision+autologous conjunctival limbal autograft under local anesthesia. The preoperative and post operative K1 and K2 values and BCVA were noted. Results. There was statistically significant reduction in mean astigmatism at each post operative follow up in group A at 1 week (p=0.0249), 2 weeks (p=0.004), 1 month (p=0.0031) and at 3 months (p=0.0009) and similarly in group B post operative follow up at 1 week (p=0.0011), 2 weeks (p=0.0021), 1 month (p=0.0009) and at 3 months (p=0.0003). Conclusion. Pterygium surgery decreases the cylindrical error and reverts corneal curvatures to normal, thus improving subjective visual acuity. Astigmatism produced by the pterygium is reduced after surgery We found autologous conjunctival autograft is superior than sutural conjunctival autograft. Pterygium causes astigmatism depending upon the size of pterygium it should be surgically removed to prevent obstruction in the vision.

Źródło:

European Journal of Clinical and Experimental Medicine; 2024, 22, 2; 334-339
2544-2406
2544-1361

Pojawia się w:

European Journal of Clinical and Experimental Medicine

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 67.

Tytuł:

A Comparative Study of Sons and Lovers and Symphony of the Dead

Autorzy:

Roozbeh, Roohollah

Powiązania:

https://bibliotekanauki.pl/articles/1178244.pdf

Data publikacji:

2018

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Comparative
Sons and Lovers
Symphony of the Dead
psychological criticism

Opis:

This article compares D. H. Lawrence’s Sons and Lovers with Abbas Maroufi’s Symphony of the Dead. These two novels have striking similarities; they deal with the tragedy of two growing men whose mothers aroused in them, to full consciousness, the desires normally re-served for a darling wife; their hatred of the father and what the father stands for in these two novels is also conspicuous; what binds these two novels, then, is psychological criticism.

Źródło:

World Scientific News; 2018, 91; 1-11
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 68.

Tytuł:

Language and Politics in India and China: A Cross-Cultural Comparative Study

Autorzy:

Komarzyca, Daniel
Fras, Janina

Powiązania:

https://bibliotekanauki.pl/articles/2015812.pdf

Data publikacji:

2020-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

China
India
philosophy of language
linguistic relativity
political culture
comparative perspective
left-libertarianism
Taoism

Opis:

This paper provides insights into the relationship between language and politically relevant aspects of culture in India and China which are as follows: attitude toward revolution and tradition, the domination of politics over religion or vice versa, and a concern for the liberty of the individual. The paper introduces a novel approach to the comparative study of civilizations by advancing the political-linguistic explanation. In so doing, it combines Hajime Nakamura’s hypothesis of the strict connection between language and culture (understood as a way of thinking) with Samuel P. Huntington’s emphasis on the impact of cultural differences on the political dimension of society – so that our explanatory model can be expressed as follows: language→culture→politics. As far as language is concerned, the focus is on the basic structure of Sanskrit and Chinese; besides, special attention is given to Indian and Chinese philosophies of language. Culturally, the most relevant schools of Hindu philosophy may be called “ultraconservative” since they tend to ground unchanging meaning firmly in metaphysics and rely on the supreme authority of ancient religious texts. In contrast, the Chinese typically considered language a social mechanism for shaping our behavior (so the relation of language and society is the most crucial); they also expressed clearly divergent views on naming. In short, at least four distinctive perspectives are essential: (1) conservative Confucianism, (2) anti-traditional and highly authoritarian Legalism, (3) egalitarian and linguistically skeptical Laozian Daoism, (4) nonconformist and proto-libertarian Zhuangzian Daoism.

Źródło:

Polish Political Science Yearbook; 2020, 4 (49); 9-36
0208-7375

Pojawia się w:

Polish Political Science Yearbook

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 69.

Tytuł:

Comparative study of nitrosamine in roasted food base on the roasting methods

Autorzy:

Ogunmodede, T.T.
Ojo, A.A.
Jegede, O.

Powiązania:

https://bibliotekanauki.pl/articles/11202.pdf

Data publikacji:

2016

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Opis:

The present study examined the interrelationships of roasting methods and nitrosamine compounds (NA) content in eleven food sample investigated. The total level of NA in examined food ranged from 1.1x10-3 μg per g in oven roasted white maize to 5.0x10-3 μg per g in wood roasted pig meat that is lower than the legal level in WHO (0.001 μg per kg ). The significant increase of NA concentration in all food samples on roasting was observed. Methods of roasting have significant effects on the level of nitrosamine in each of the material used.

Źródło:

International Letters of Natural Sciences; 2016, 50
2300-9675

Pojawia się w:

International Letters of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 70.

Tytuł:

Land-use planning and public participation in Norway and Poland – comparative study

Autorzy:

Gorczyca, Katarzyna
Kotuła, Łukasz

Powiązania:

https://bibliotekanauki.pl/articles/447231.pdf

Data publikacji:

2008-03

Wydawca:

Instytut Rozwoju Miast

Opis:

This report is a comprehensive study of Norwegian and Polish spatial planning systems. It focuses on land-use part of planning and shows basic similarities and differences between those two planning policies. The aim of this report was to study and analyze the planning systems in both countries. During the preparation of this report, authors posed the following questions: – What kind of relations are there between all the planning levels stated in the legislation procedure as well as in practice? – Which planning documents concern land-use management? – What are the main trends of spatial management in urban areas? – How in practice does public participation in spatial planning process look? During the research authors attempted to answer those questions by using different methods. Firstly, professional documentation has been investigated. The main data sources were planning legislation and documents (including maps), as well as professional literature. Secondly, informal interviews were conducted. Fifteen interviews with planning researchers and with local and regional planners were carried out in Norway. Interviews were informal, however, they were based on previously prepared key-words list. Besides the analysis of the planning system in both countries, the report also includes two case-studies. In this report Oslo and Kraków were taken into consideration. In the report an emphasis was put also on environmental issues in spatial policy, public participation and privatization process of planning.

Źródło:

Problemy Rozwoju Miast; 2008, 1; 95-111
1733-2435

Pojawia się w:

Problemy Rozwoju Miast

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 71.

Tytuł:

A comparative study between developmental leadership and lean leadership - similarities and differencies

Autorzy:

Ljungblom, M.

Powiązania:

https://bibliotekanauki.pl/articles/406762.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

behavior
lean manufacturing
management
social and behavioral sciences

Opis:

The purpose of the study is to compare Developmental leadership with Lean leadership; document the differences and similarities and examine if you can combine these theories to achieve better results in the organization. A literature review is used. The result indicates more similarities than differences between Developmental leadership and Lean leadership behavior. The major difference is that Developmental leadership focuses on making the leader conscious of their own behavior and develop (possibly change) their behavior. Through new behaviors their co-workers and organization also gain developmental advantages. There is no further purpose described in Development leadership theory. Lean leadership also concentrates on behaviors, but clearly declares an override purpose; continuous improvement with focus on eliminating waste in the value stream. Lean leadership behaviors share a similar purpose, and focus on making leaders aware of what incorrect behaviors can cost or cause the organization. Even if Lean leadership does not have this clear and distinct relationship it is an underlying element in one of the two key principles - respect for people, which permeates both models. The two studied models seem to be quite similar and both focus on role models and frequency of developmental/value creating behaviors. The proposed comparative study should be oriented towards practical application in management positions.

Źródło:

Management and Production Engineering Review; 2012, 3, 4; 54-68
2080-8208
2082-1344

Pojawia się w:

Management and Production Engineering Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 72.

Tytuł:

The effects of succession a comparative study of military and business organization

Autorzy:

Grusky, Oscar.

Tematy:

Organizacja
Wojsko

Dostawca treści:

Bibliografia CBW

/5

Książka

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Skocz do pozycji: 73.

Tytuł:

The energy efficiency of willow biomass production in Poland - a comparative study

Autorzy:

Szczukowski, S.
Tworkowski, J.
Stolarski, M.J.
Krzyzaniak, M.

Powiązania:

https://bibliotekanauki.pl/articles/11962.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Opis:

Field experiments with willow (Salix L.) coppice cultivation and Eko-Salix systems have been conducted at the University of Warmia and Mazury since 1992. In that wider context, the aim of the work described here was to compare energy inputs involved in setting up a plantation and producing biomass, and to assess the efficiency of willow-chips production under the coppice and Eko-Salix systems. The energy gain determined in the experiments was several to more than twenty times as great as the inputs needed to operate the plantation and to harvest willow biomass, this leaving both systems of willow cultivation under study attractive where setting up short-rotation coppices is concerned.

Źródło:

Papers on Global Change; 2015, 22
2300-8121
1730-802X

Pojawia się w:

Papers on Global Change

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 74.

Tytuł:

PROACTIVENESS, COMPETITIVE AGGRESSIVENESS AND AUTONOMY: A COMPARATIVE STUDY FROM THE CZECH REPUBLIC

Autorzy:

Rahman, Ashiqur
Civelek, Mehmet
Kozubíková, Ludmila

Powiązania:

https://bibliotekanauki.pl/articles/517389.pdf

Data publikacji:

2016

Wydawca:

Instytut Badań Gospodarczych

Tematy:

entrepreneurial orientation
micro enterprises
small and medium enterprises

Opis:

The purpose of this comparative study is to explore the differences in the entrepreneurial orientation (EO) between micro versus small and medium enterprises (SMEs). We have selected three dimensions of EO (proactiveness, competitive aggressiveness and autonomy) for our analysis. We have analyzed the data collected from 1141 respondents during the period of 2015 from 14 regions of the Czech Republic, which consists of 740 micro firms and 401 small and medium firms. Empirical results of our paper show significant differences between micro versus small and medium enterprises in terms of proactiveness and autonomy. However, we can only partially confirm that micro firms are statistically different from the SMEs in terms of competitive aggressiveness. Thus, our paper enables better understanding of the EO from the firm size perspective, when they have different levels of resources.

Źródło:

Equilibrium. Quarterly Journal of Economics and Economic Policy; 2016, 11, 3; 631-650
1689-765X
2353-3293

Pojawia się w:

Equilibrium. Quarterly Journal of Economics and Economic Policy

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 75.

Tytuł:

A comparative study for outlier detection methods in high dimensional text data

Autorzy:

Park, Cheong Hee

Powiązania:

https://bibliotekanauki.pl/articles/2201316.pdf

Data publikacji:

2023

Wydawca:

Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych

Tematy:

curse of dimensionality
dimension reduction
high dimensional text data
outlier detection

Opis:

Outlier detection aims to find a data sample that is significantly different from other data samples. Various outlier detection methods have been proposed and have been shown to be able to detect anomalies in many practical problems. However, in high dimensional data, conventional outlier detection methods often behave unexpectedly due to a phenomenon called the curse of dimensionality. In this paper, we compare and analyze outlier detection performance in various experimental settings, focusing on text data with dimensions typically in the tens of thousands. Experimental setups were simulated to compare the performance of outlier detection methods in unsupervised versus semisupervised mode and uni-modal versus multi-modal data distributions. The performance of outlier detection methods based on dimension reduction is compared, and a discussion on using k-NN distance in high dimensional data is also provided. Analysis through experimental comparison in various environments can provide insights into the application of outlier detection methods in high dimensional data.

Źródło:

Journal of Artificial Intelligence and Soft Computing Research; 2023, 13, 1; 5--17
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: 76.

Tytuł:

Social Identification and Positioning in Academic Discourse: An English-Polish Comparative Study

Autorzy:

Lehman, Iga Maria

Powiązania:

https://bibliotekanauki.pl/articles/504720.pdf

Data publikacji:

2016

Wydawca:

Komisja Nauk Filologicznych Polskiej Akademii Nauk, Oddział we Wrocławiu

Tematy:

academic discourse
authorial identity
social identification
deliberate self-positioning
forced selfpositioning

Opis:

This article sets out to present the critical role of positioning theory and social identification theory in the discoursal analysis of authorial presence in academic texts by focusing on the dynamic nature of writer identity. Drawing on Harré’s, Fairclough’s and Hall’s work, and my own focus on the relationship between students’ identities and their experience of academic writing, I claim that discoursal identity often establishes itself in relation to difference and that it refers to the various “selves” which writers employ in the act of writing, which locates identity in socio-cultural and institutionally defined subject positions. An empirical case is then presented. It consists of a description of my own semi-ethnographic study1 on the co-construction of authorial identity in student writing in both English and Polish, focusing on the findings of the macro-level analysis of a text corpus. The findings of the study support my other claim that authorial identity is a dynamic concept which cannot be determined entirely by socio-cultural or institutional factors, but is unique for each writer and can be negotiated and changed.

Źródło:

Academic Journal of Modern Philology; 2015, 4; 65-71
2299-7164
2353-3218

Pojawia się w:

Academic Journal of Modern Philology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 77.

Tytuł:

Slovak Teacher’s Transformational Leadership and Student Teachers’ Ideas: A Comparative Study

Autorzy:

Ďuricová, Lenka
Frgelcová, Estera

Powiązania:

https://bibliotekanauki.pl/articles/2034199.pdf

Data publikacji:

2022-03-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

transformational leadership
leadership practices
teachers
student teachers

Opis:

The contribution brings an analysis of transformational leadership among Slovak secondary education teachers in comparison with ideas of student teachers. The research sample consists of secondary education teachers (N = 142) and student teachers (N = 142). Data are obtained from the Slovak version of the LPI/Leadership Practices Inventory. Results indicate statistically significant differences in three dimensions favouring students against teachers: Model the Way, Challenge the Process, Enable Others to Act. Slovak students consider transformational leadership practices essential as Slovak teachers apply them in their daily practice. Results are discussed mainly from the perspective of ontogenetic and educational practice.

Źródło:

The New Educational Review; 2022, 67; 185-195
1732-6729

Pojawia się w:

The New Educational Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 78.

Tytuł:

Differences in Denials of the Holocaust: Comparative Study of Two Case Studies

Autorzy:

Trejbalova, Tereza

Powiązania:

https://bibliotekanauki.pl/articles/545511.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet Gdański. Wydział Filologiczny

Tematy:

Genocide
Holocaust
denialism
historical revisionism,
Jewish population
Roma population

Opis:

Denial of the Holocaust is a topic that is largely discussed and attracts public attention to this day. However, the language used when debating historical revisionism is oftentimes limited to the Jewish victims and survivors, while other groups, which were targeted during World War II, are regularly omitted from the discourse. The objective of this qualitative study is to establish what are the common patterns of two types of Holocaust denial – denial of the Jewish genocide and denial of the Roma genocide – and how these are treated by the international community. The findings of this research indicate that the deniers adhere to similar ideologies that result in questioning the existence of the Holocaust. The international community poses as an interesting case as the Roma genocide is not denied; however, its existence has been largely unacknowledged until a recent slight turn towards more equal treatment of survivors and victims in several countries.

Źródło:

Jednak Książki. Gdańskie Czasopismo Humanistyczne; 2016, 6; 69-84
2353-4699

Pojawia się w:

Jednak Książki. Gdańskie Czasopismo Humanistyczne

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 79.

Tytuł:

A COMPARATIVE STUDY OF FastICA AND GRADIENT ALGORITHMS FOR STOCK MARKET ANALYSIS

Autorzy:

Nermend, Kesra
Rajihy, Yasen

Powiązania:

https://bibliotekanauki.pl/articles/452923.pdf

Data publikacji:

2014

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki

Tematy:

independent component analysis
nangaussianity
negentropy
stock market analysis

Opis:

In this paper we proved that a fast fixed point algorithm known as FastICA algorithm depending on maximization the nongaussianity by using the ne-gentropy approach is one of the best algorithm for solving ICA model. We compare this algorithm with Gradient algorithm. The Abu Dhabi Islamic Bank (ADIB) used as illustrative example to evaluate the performance of these two algorithms. Experimental results show that the FastICA algorithm is more robust and faster than Gradient algorithm in stock market analysis.

Źródło:

Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 1; 142-152
2082-792X

Pojawia się w:

Metody Ilościowe w Badaniach Ekonomicznych

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 80.

Tytuł:

A comparative study of the sensitivity analysis for systems with viscoelastic elements

Autorzy:

Łasecka-Plura, Magdalena

Powiązania:

https://bibliotekanauki.pl/articles/27309874.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Czasopisma i Monografie PAN

Tematy:

sensitivity analysis
viscoelastic damping elements
dynamic characteristics
fractional
derivatives
analiza wrażliwości
lepkosprężyste elementy tłumiące
charakterystyka dynamiczna

Opis:

This paper discusses the different methods used for calculating first- and second-order sensitivity: the direct differentiation method, the adjoint variables method, and the hybrid method. The solutions obtained allow determining the sensitivity of dynamic characteristics such as eigenvalues and eigenvectors, natural frequencies, and nondimensional damping ratios. The methods were applied for analyzing systems with viscoelastic damping elements, whose behavior can be described by classical and fractional rheological models. However, the derived formulas are general and can also be applied to systems with damping elements described by other models. Their advantage is a compact and easy to code form. The paper also presents a comparison of the computational costs of the discussed methods. The correctness of all the proposed methods has been illustrated with numerical examples.

Źródło:

Archive of Mechanical Engineering; 2023, LXX, 1; 5--25
0004-0738

Pojawia się w:

Archive of Mechanical Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 81.

Tytuł:

Comparative study of CNN and LSTM for opinion mining in long text

Autorzy:

Yousf, Siham
Rhanoui, Maryem
Mounia, Mikram

Powiązania:

https://bibliotekanauki.pl/articles/1837369.pdf

Data publikacji:

2020

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

deep learning
long text opinion mining
CNN
LSTM

Opis:

The digital revolution has encouraged many companies to set up new strategic and operational mechanisms to supervise the flow of information published about them on the Web. Press coverage analysis is a part of sentiment analysis that allows companies to discover the opinion of the media concerning their activities, products and services. It is an important research area, since it involves the opinion of informed public such as journalists, who may influence the opinion of their readers. However, from an implementation perspective, the analysis of the opinion from media coverage encounters many challenges. In fact, unlike social networks, the Media coverage is a set of large textual documents written in natural language. The training base being huge, it is necessary to adopt large-scale processing techniques like Deep Learning to analyze their content. To guide researchers to choose between one of the most commonly used models CNN and LSTM, we compare and apply both models for opinion mining from long text documents using real datasets.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2020, 14, 3; 50-55
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 82.

Tytuł:

Comparative Study of ZnO Thin Films Prepared by Different Sol-Gel Route

Autorzy:

Ghodsi, F.
Absalan, H.

Powiązania:

https://bibliotekanauki.pl/articles/1535801.pdf

Data publikacji:

2010-10

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

78.20.Ci
78.55.Hx
78.66.Bz
81.20.Fw

Opis:

The ZnO thin films were prepared from zinc acetate dihydrate as main precursor by using sol-gel method and deposited by drainage and dip coating technique. Four different routes and coating techniques were used for the preparation of samples. The morphology, optical, and structural properties of the sol-gel made ZnO thin films were studied with respect to the preparation of sol-gel route, drainage and dip coating technique. The microstructure of the ZnO thin films and the powders were analyzed by X-ray diffraction. The ZnO thin films prepared in this study were amorphous while its powders were polycrystalline with various diffraction peaks in the X-ray diffraction patterns. The morphology of the film was examined by using scanning electron microscopy. The surface morphology of the ZnO thin films strongly depends on preparation route and deposition technique. The optical characteristics of the samples were obtained by using UV-Visible spectrophotometer at 200-900 nm wavelength. The optical constants (refractive index, extinction coefficient etc.) of the ZnO thin films depend on preparation conditions. The photoluminescence spectra of the ZnO films show the band-edge and sub-band transitions.

Źródło:

Acta Physica Polonica A; 2010, 118, 4; 659-664
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 83.

Tytuł:

Badania porównawcze liniowych ładunków kumulacyjnych
The comparative study of linear shaped charges

Autorzy:

Habera, Łukasz
Habera, Kamil

Powiązania:

https://bibliotekanauki.pl/articles/2143637.pdf

Data publikacji:

2021

Wydawca:

Instytut Nafty i Gazu - Państwowy Instytut Badawczy

Tematy:

perfoszczelinowanie
kumulacja detonacyjna
ładunki liniowe
combined
perforating
fracturing
detonation
cumulation
linear charges

Opis:

Celem prezentowanych badań poligonowych była fizyczna weryfikacja zdolności liniowego ładunku kumulacyjnego (LŁK) do perforowania celu wielowarstwowego w warunkach napowietrznych. Zastosowane modele doświadczalne zbliżały układ geometryczny testowany na poligonie do sekcji odwiertu podlegającej zabiegowi perforacji. Seria badań strzałowych obejmowała testy trzech rodzajów ładunków liniowych wytypowanych do stosowania w urządzeniach perforująco-szczelinujących. Testom poddano ładunek: • LŁK w obudowie ołowiowej o przekroju kołowym φ = 40 mm z wgłębieniem kumulacyjnym; • LŁK z miedzianą wkładką kumulacyjną w obudowie stalowej w kształcie trapezu 20/30 mm; • LŁK z wkładką kumulacyjną z litej miedzi w obudowie stalowej w kształcie trapezu 20/40 mm. W trakcie badań rejestrowano prędkość strumienia kumulacyjnego za pomocą układu sond napięciowych rozmieszczonych pomiędzy poszczególnymi warstwami celu złożonego z materiału stalowego i betonu. Metoda badawcza dopasowana do charakteru testów miała na celu zweryfikowanie tezy, czy zaproponowane ładunki kumulacyjne spełniają warunki techniczne i sprawnościowe do efektywnego zastosowania ich w przemyśle naftowym. Poprzez warunki techniczne rozumiemy przede wszystkim gabaryt zewnętrzny umożliwiający posadowienie ładunku wewnątrz rury korpusowej z zachowaniem wymaganego dystansu od ścianki urządzenia. Przyjętym kryterium sprawnościowym była natomiast zdolność lub jej brak do perforowania celu wielowarstwowego w postaci dwóch płyt stalowych i odlewu betonowego. Stanowisko badawcze, z natury rzeczy jednorazowego użycia, każdorazowo składało się z bloczka betonowego o wymiarach 400 mm × 250 mm × 150 mm i wytrzymałości statycznej na ściskanie 20 MPa, na którym położone zostały równolegle dwie płyty stalowe z zachowaniem odstępu równego 20 mm. Grubość płyt to 5 mm i 10 mm. Na wierzchniej płycie stalowej pozycjonowano badany ładunek kumulacyjny w odległości jednego kalibru – czyli dystansu równego rozwartości ładunku trapezowego oraz pełnej średnicy ładunku o przekroju kołowym. Ponadto w płaszczyznach zmiany ośrodka (stal–powietrze; powietrze–stal; stal–beton) zamontowano zestaw napięciowych sond pomiarowych w postaci cienkich pojedynczych przewodów elektrycznych (φ = 0,25 mm). W chwili ich zerwania (przerwania obwodu) w wyniku działania strumienia kumulacyjnego – spadek napięcia w kolejnych sondach pomiarowych zadziała na zasadzie bramki logicznej typu start–stop lub innymi słowy: zero–jeden (0–1). Odczytanie czasów przerwań poszczególnych sond pozwoliło dodatkowo wyznaczyć prędkość strumienia kumulacyjnego i oszacować dynamikę jego wyhamowywania wraz z pokonywaniem kolejnych elementów celu wielowarstwowego.
The fireground tests are the best method for verifying the operation effectiveness of the entire shooting device or its component parts in real conditions. The purpose of the fireground tests presented herein was the physical verification of linear shaped charge (LSC) ability to perforate multi-layered target, reflecting the material and geometrical conditions of a borehole. The series of shooting tests included tests of three types of linear shaped charges selected for use in perfo-fracturing devices. The following shaped charges were tested: • LSC in lead enclosure, having φ = 40 mm circular cross-section with shaped recess; • LSC with copper liner in 20/30 mm steel trapezoid enclosure; • LSC with liner made of solid copper, in 20/40 mm steel trapezoidal enclosure. During testing, the cumulative jet velocity was recorded using voltage type probes, arranged between the individual layers of a target composed of steel and concrete materials. The research method adapted for the project purposes was aimed at verification of the following thesis: whether the proposed shaped charges fulfil the technical and performance conditions for their effective application in the oil industry. The criterion adopted was the ability – or lack of ability – to perforate the multi-layered barrier in the form of two steel plates and concrete casting. The testing stand, single-use by its nature, was each time composed of concrete block having 400 mm × 250 mm × 150 mm dimensions and 20 MPa static compressive strength, on which two steel plates were placed parallel to each other with 20 mm spacing. The thickness of the plates was 5 mm and 10 mm respectively. The tested shaped charge was placed on the top steel plate at a distance of one calibre – that is the distance equal to the opening of the trapezoidal shaped charge and full diameter of circular cross-section charge. Furthermore, within media interface planes (steel/air, air/steel; steel/concrete), the set of voltage-type measuring probes was installed, in the form of single electric wires (φ = 0.25 mm). At an instant when they break (circuit break) as a result of cumulative jet operation, voltage drop in the subsequent measuring probes will act as a logical gate of start-stop type, or in other words the zero-one (0–1) type gate. The readings of individual probes breakage times allowed in addition to determine the velocity of the cumulative jet and to estimate its braking dynamics while passing through the subsequent elements of multi-layered target.

Źródło:

Nafta-Gaz; 2021, 77, 6; 366-375
0867-8871

Pojawia się w:

Nafta-Gaz

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 84.

Tytuł:

A comparative study of Precise Point Positioning (PPP) accuracy using online services

Autorzy:

Malinowski, M.
Kwiecień, J.

Powiązania:

https://bibliotekanauki.pl/articles/106719.pdf

Data publikacji:

2016

Wydawca:

Politechnika Warszawska. Wydział Geodezji i Kartografii

Tematy:

Precise Point Positioning
PPP
GPS
APPS
CSRS-PPP
GAPS
magicGNSS
System Precyzyjnego Pozycjonowania

Opis:

Precise Point Positioning (PPP) is a technique used to determine the position of receiver antenna without communication with the reference station. It may be an alternative solution to differential measurements, where maintaining a connection with a single RTK station or a regional network of reference stations RTN is necessary. This situation is especially common in areas with poorly developed infrastructure of ground stations. A lot of research conducted so far on the use of the PPP technique has been concerned about the development of entire day observation sessions. However, this paper presents the results of a comparative analysis of accuracy of absolute determination of position from observations which last between 1 to 7 hours with the use of four permanent services which execute calculations with PPP technique such as: Automatic Precise Positioning Service (APPS), Canadian Spatial Reference System Precise Point Positioning (CSRS-PPP), GNSS Analysis and Positioning Software (GAPS) and magicPPP - Precise Point Positioning Solution (magicGNSS). On the basis of acquired results of measurements, it can be concluded that at least two-hour long measurements allow acquiring an absolute position with an accuracy of 2-4 cm. An evaluation of the impact on the accuracy of simultaneous positioning of three points test network on the change of the horizontal distance and the relative height difference between measured triangle vertices was also conducted. Distances and relative height differences between points of the triangular test network measured with a laser station Leica TDRA6000 were adopted as references. The analyses of results show that at least two hours long measurement sessions can be used to determine the horizontal distance or the difference in height with an accuracy of 1-2 cm. Rapid products employed in calculations conducted with PPP technique reached the accuracy of determining coordinates on a close level as in elaborations which employ Final products.

Źródło:

Reports on Geodesy and Geoinformatics; 2016, 102; 15-31
2391-8365
2391-8152

Pojawia się w:

Reports on Geodesy and Geoinformatics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 85.

Tytuł:

A comparative study on transformer and inductor based LC tanks for VCOs

Autorzy:

Duarte, R.
Fernandes, J. R.

Powiązania:

https://bibliotekanauki.pl/articles/397839.pdf

Data publikacji:

2010

Wydawca:

Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki

Tematy:

RF (częstotliwość radioelektryczna)
VCO (generator sterowany napięciowo)
RF (radio frequency)
VCO ( voltage controlled oscillators)
PLL

Opis:

This paper presents a detailed comparative study of two different approaches to implement the resonator found in radio frequency (RF) voltage controlled oscillators (VCOs). An inductor LC tank VCO and a transformer LC tank VCO are compared in terms of phase noise, power consumption, tuning range and circuit area. Conclusions about the use of each approach depending on the design goals are presented.

Źródło:

International Journal of Microelectronics and Computer Science; 2010, 1, 1; 37-41
2080-8755
2353-9607

Pojawia się w:

International Journal of Microelectronics and Computer Science

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 86.

Tytuł:

Comparative study of the parallel and angular electrical gripper for industrial applications

Autorzy:

Fotuhi, Mohammad Javad
Bingul, Zafer

Powiązania:

https://bibliotekanauki.pl/articles/1837935.pdf

Data publikacji:

2021

Wydawca:

Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej

Tematy:

electrical lead screw-driven industrial gripper mechanism
LSDIGM
efficiency
position root mean square error
PRMSE
parallel electrical gripper
PEG
angular electrical gripper
AEG

Opis:

The aim of this paper is to study the position and power performances of an electrical lead screw-driven industrial gripper mechanism (LSDIGM). This work consists of designing and developing an electrical LSDIGM that has the potential to meet various demands in the automation industry and factories. The performances of both angular electrical gripper (AEG) and parallel electrical gripper (PEG) mechanisms were compared based on their position and power efficiency. The position efficiency of these electrical LSDIGM is computed from the position root mean square error (PRMSE) obtained from errors between the two measured positions (input incremental encoder and output linear encoder). In the experimental setup, a current sensor and a spring were employed to measure the current in the input of the system and the stiffness in the output of the system, respectively. The electrical power in the input of the electrical LSDIGM and the mechanical power in the output of the LSDIGMs were calculated using the current and the spring force, respectively. Finally, the power efficiency of these electrical LSDIGMs was examined and compared at different velocity circumstances.

Źródło:

Acta Mechanica et Automatica; 2021, 15, 2; 66-73
1898-4088
2300-5319

Pojawia się w:

Acta Mechanica et Automatica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 87.

Tytuł:

Comparative study of PID controller designs for AVR using different optimization techniques

Autorzy:

Hesham, Haya
Ezzat, M.
Swief, Rania A.

Powiązania:

https://bibliotekanauki.pl/articles/1841193.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

comparison
optimization techniques
PID controller
AVR system
porównanie
techniki optymalizacji
Regulator PID
System AVR

Opis:

This paper presents the optimal PID tuning study to improve the dynamic performance of an automatic voltage regulation (AVR) system. The system under study consists of a synchronous generator whose reference voltage changes in a step function and tries to overcome the transient behavior of its terminal voltage smoothly. To optimally control the performance, different optimization techniques are applied to tune the controller gains to obtain the minimum steady state error (main objective) and better dynamic characteristics (rise time, settling time, max overshoot, etc.). Then the AVR system responses with a PID controller based on different optimization techniques are compared to find out which is the best technique.

Źródło:

Archives of Electrical Engineering; 2021, 70, 3; 567-583
1427-4221
2300-2506

Pojawia się w:

Archives of Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 88.

Tytuł:

Comparative study of the properties of yellow and brown Cyperus esculentus L.

Autorzy:

Ihenetu, Stanley Chukwuemeka
Ibe, Francis Chizoruo
Inyamah, Prisca Chigozie

Powiązania:

https://bibliotekanauki.pl/articles/1031463.pdf

Data publikacji:

2021

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Mineral content
medicinal value
nutritive value
phytochemicals
yellow and brown tiger nuts

Opis:

The present research accounts for the physicochemical and phytochemical characteristics of yellow and brown Cyperus esculentus, which were subjected to standard chemical and biochemical analysis. The results obtained from the analysis of yellow tiger nut showed the following phytochemical properties: anthocyanin 0.82 ± 0.02 µg/ml, oxalate 1.43 ± 0.05 µg/ml, tannin 12.22 ± 0.10 µg/ml, rutin 39.19 ± 0.29 µg/ml, phenol 10.94 ± 0.05 µg/ml, lunamarine 38.99 ± 0.07 µg/ml, saponin 44.67 ± 0.15 µg/ml, ribalinidine 1.35 ± 0.03 µg/ml, phytate 0.33 ± 0.01 µg/ml, catechin 48.29 ± 0.04 µg/ml, and kaempferol 38.59 ± 0.02 µg/ml. The brown tiger nut showed the presence of the phytochemicals with values as: anthocyanin 0.01 ± 0.00 µg/ml, oxalate 2.66 ± 0.02 µg/ml, tannin 12.67 ± 0.04 µg/ml, rutin 43.99 ± 0.05 µg/ml, phenol 11.02 ± 0.10 µg/ml, lunamarine 39.66 ± 0.03 µg/ml, saponin 47.79 ± .06 µg/ml, ribalinidine 1.21 ± 0.04 µg/ml, phytate 0.28 ± 0.03 µg/ml, catechin 46.77 ± 0.05 µg/ml, and kaempferol 38.34 ± 0.15 µg/ml. The observed level of mineral elements in the tiger nut is in the increasing order of zinc > sodium > iron > copper > calcium > magnesium > potassium for yellow tiger nut, and for brown tiger nut the order is zinc > sodium > iron > copper > calcium > magnesium > potassium. The values of physical and chemical properties recorded for yellow tiger nut is in the increasing order of moisture > ash content > crude protein > crude fiber > crude fat > carbohydrate, the increasing order for brown tiger nut shows ash content > moisture > crude protein > crude fiber > crude fat > carbohydrate. This indicates that tiger nuts contain elevated carbohydrate levels, crude fat and protein. From the data obtained, the high potassium to low sodium ratio of the two species of tiger nuts consequently might be imperative in diet recommendations for patients with high blood pressure (high BP) and edema as well. The investigated tiger nut varieties are rich sources of the phytochemicals, oil and contain moderate amounts of protein. They are also rich sources of fiber and carbohydrates. The phytochemical constituents of the tiger nuts are important and could be of high commercial significance in both, research institutes and pharmaceuticals companies for manufacturing of new drugs and for therapeutic applications.

Źródło:

World News of Natural Sciences; 2021, 35; 25-37
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 89.

Tytuł:

A Comparative Study on Ex-Situ & In-Situ Formed Metal Matrix Composites

Autorzy:

Gobalakrishnan, B.
Rajaravi, C.
Udhayakumar, Gobikrishnan
Lakshminarayanan, P. R.

Powiązania:

https://bibliotekanauki.pl/articles/2203734.pdf

Data publikacji:

2023

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

MMCs
Al-SiC
Al-TiB2
extrusion
heat treatment
mechanical properties
microstructure

Opis:

An attempt has been made to synthesize the aluminium based ex-situ (Al-SiC) and in-situ (Al-TiB2) formed metal matrix composites with varying weight percentage of reinforcement contents such as 4wt.%, 6wt.% and 8wt.%. Synthesized composites were subjected to a cold extrusion process followed by heat treatment according to the ASTM B 918-01 standards. The mechanical properties of in-situ composites were evaluated as per the ASTM guidelines and compared with ex-situ formed composites and base metal properties. Superior properties were noticed in the in-situ formed composites and the mechanical properties such as yield strength, Ultimate tensile strength (UTS) and Hardness for both ex-situ and in-situ composites were found to increase with increasing the reinforcement addition. Cold extruded Al-8 wt.% SiC composite properties such as hardness, yield strength and UTS are 87 RB, 152 MPa, 216 MPa respectively. Whereas, for Al-8 wt.% TiB2 composite, the corresponding properties are 94 RB, 192 MPa, 293 MPa. The morphology of the composites is analysed by Optical and Scanning Electron Microscopic (SEM) whereas presence of reinforcement particles such SiC and TiB2 along with intermetallic phases Mg2Si and Al5FeSi are confirmed by EDX, XRD and Element Mapping analyses.

Źródło:

Archives of Metallurgy and Materials; 2023, 68, 1; 171--185
1733-3490

Pojawia się w:

Archives of Metallurgy and Materials

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 90.

Tytuł:

Comparative study for deriving stagedischarge – sediment concentration relationships using soft computing techniques

Autorzy:

Sihag, P.
Sadikhani, M. R.
Vambol, V.
Vambol, S.
Prabhakar, A. K.
Sharma, N.

Powiązania:

https://bibliotekanauki.pl/articles/1818806.pdf

Data publikacji:

2021

Wydawca:

Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach

Tematy:

sediment load concentration
Baitarani river
M5P
random forest
ładunek osadu
stężenie
rzeka Baitarani
las losowy

Opis:

Purpose: Knowledge of sediment load carried by any river is essential for designing and planning of hydro power and irrigation projects. So the aim of this study is to develop and evaluating the best soft-computing-based model with M5P and Random Forest regressionbased techniques for computation of sediment using datasets of daily discharge, daily gauge and sediment load at the Champua gauging site of the Upper Baitarani river basin of India. Design/methodology/approach: Last few decades, the soft computing techniques based models have been successfully used in water resources modelling and estimation. In this study, the potential of tree based models are examined by developing and comparing sediment load prediction models, based on M5P tree and Random forest regression (RF). Several M5P and RF based models have been applied to a gauging site of the Baitarani River at Odisha, India. To evaluate the performance of the selected M5P and RF-based models, three most popular statistical parameters are selected such as coefficient of correlation, root mean square error and mean absolute error. Findings: A comparison of the results suggested that RF-based model could be applied successfully for the prediction of sediment load concentration with a relatively higher magnitude of prediction accuracy. In RF-based models Qt, Q(t-1), Q(t-2), S(t-1), S(t-2), Ht and H(t-1) combination based M10 model work superior than other combination based models. Another major outcome of this investigation is Qt, Q(t-1) and S(t-1) based model M4 works better than other input combination based models using M5P technique. The optimum input combination is Qt, Q(t-1) and S(t-1) for the prediction of sediment load concentration of the Baitarani River at Odisha, India. Research limitations/implications: The developed models were tested for Baitarani River at Odisha, India.

Źródło:

Journal of Achievements in Materials and Manufacturing Engineering; 2021, 104, 2; 57--76
1734-8412

Pojawia się w:

Journal of Achievements in Materials and Manufacturing Engineering

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 91.

Tytuł:

The Algerian and Mau Mau Revolts : A Comparative Study in Revolutionary Warfare

Autorzy:

Adekson, J.Bayo.

Powiązania:

Comparative Strategy 1981, Vol. 3 nr 1, s. 69-92

Data publikacji:

1981

Tematy:

Działania partyzanckie Kenia 1952-1956 r.
Wojna 1954-1962 r. algiersko-francuska działania partyzanckie Algieria
Działania partyzanckie Algieria 1954-1962 r.

Dostawca treści:

Bibliografia CBW

/5

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Skocz do pozycji: 92.

Tytuł:

The Parties Empowered to Lodge a Constitutional Complaint in Poland and in Selected European Countries – Legal–comparative Study

Autorzy:

Szmulik, Bogumił

Powiązania:

https://bibliotekanauki.pl/articles/2026806.pdf

Data publikacji:

2005-12-31

Wydawca:

Wydawnictwo Adam Marszałek

Tematy:

European countries
Comparative study
Constitutional complaint
Polska

Opis:

The parties empowered to lodge a constitutional complaint under the Polish model are defined in Article 79(1) of the Polish Constitution, stating that: “Everyone whose constitutional freedoms or rights have been infringed, shall have the right to appeal to the Constitutional Tribunal (...). The above quoted article is considered to have the fundamental significance in the process of identification of the parties entitled to lodge a constitutional complaint, so in other words, provides a clear answer to the question who can effectively lodge such a complaint in order for the adequate proceedings to be officially opened (however – which is explained in detail in this article – having fulfilled certain specified objective conditions).

Źródło:

Polish Political Science Yearbook; 2005, 34; 31-43
0208-7375

Pojawia się w:

Polish Political Science Yearbook

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 93.

Tytuł:

Komizm obsceniczny w trzech odsłonach. Relacje między przekładami Dialogus Salomonis et Marcolfi na języki polski, włoski i angielski
The obscene comic in three contexts. Relations between Polish, Italian and English translation of Dialogus Salominis et Marcolfi

Autorzy:

Bąkowska, Nadzieja

Powiązania:

https://bibliotekanauki.pl/articles/28409066.pdf

Data publikacji:

2015

Wydawca:

Associazione Italiana Polonisti (AIP)

Tematy:

Obscene comic
Comparative study
Medieval literature

Opis:

The article is an attempt to characterize linguistic and cultural relations between three translations of Dialogus Salomonis et Marcolfi from Latin into vernacular languages: Polish, Italian and English. Comparative analysis of the three translations confirms that in the cultural contexts examined, despite some discrepancies concerning the explicitness of language and images, there is the same model of comedy, based on obscene elements. The analysis aims to determine the nature and substrate of differences occurring between texts in terms of the obscene comic, as well as the extent to which various local colours were adopted in the translation process.

Źródło:

pl.it / rassegna italiana di argomenti polacchi; 2015, 6; 57-71
2384-9266

Pojawia się w:

pl.it / rassegna italiana di argomenti polacchi

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 94.

Tytuł:

The Effect of Sales Planning Practices on Manufacturing Strategy. An International Comparative Study.

Autorzy:

Szozda, Natalia
Świerczek, Artur

Powiązania:

https://bibliotekanauki.pl/articles/504561.pdf

Data publikacji:

2012

Wydawca:

Międzynarodowa Wyższa Szkoła Logistyki i Transportu

Opis:

producers should perceive a manufacturing strategy as the issue of crucial importance for their market position. It describes the use of manufacturing as a competitive weapon, as opposed to a function that is passive with respect to its competitive environment. Manufacturing companies differ in the way they meet the demand for their products. Some deliver products to their clients from finished goods inventories as their production anticipates customers' orders; others, however, manufacture only in response to customers' orders. In this connection the emphasis of manufacturing strategies is now more to competition in terms of time and customization. Time competition requires an emphasis on time which should not be wasted and is supported by fewer and faster activities being performed. On the other hand, customization means performing some activities according to the unique requirements of an individual customer. Competition in terms of time and customization is reflected in one of the most popular classification of manufacturing strategy, namely: make-to-stock (MTO), assembly-to-order (ATO), make-to-order (MTO) and engineer-to-order (ETO). The application of the strategy may determine the extent the producers use forecasting techniques, combine environmental and market data into forecasting process and prepare forecasts for specific purposes. The goal of the paper is to make a cross-national comparison of the effect of forecasting practices on different types of manufacturing strategies applied in 343 producers from Europe, Asia and Africa. In order to achieve an empirical aim a necessary methodology and statistical analyses have been employed. In the result of the analysis multiple regression models have been developed for specific manufacturing strategies of producers from different countries worldwide. It enabled to make cross-national comparisons of the contribution to variance in manufacturing strategy.

Źródło:

Logistics and Transport; 2012, 15, 2; 51-61
1734-2015

Pojawia się w:

Logistics and Transport

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 95.

Tytuł:

Bankowość islamska i bankowość konwencjonalna - próba porównania
Islamic and Conventional Banking - Comparative Study

Autorzy:

Włodarczyk, Julia

Powiązania:

https://bibliotekanauki.pl/articles/592603.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet Ekonomiczny w Katowicach

Tematy:

Analiza porównawcza
Bankowość
Bankowość islamska
Kraje muzułmańskie
Banking
Comparative analysis
Islamic banking
Islamic countries

Opis:

This paper discusses the most important theoretical foundations of Islamic banking, presents some controversies related to the comparison of the performance of Islamic and conventional banks during the global financial crisis and points out several problems that may influence further development of Islamic banking and its relation to conventional banking.

Źródło:

Studia Ekonomiczne; 2013, 145; 113-122
2083-8611

Pojawia się w:

Studia Ekonomiczne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 96.

Tytuł:

FX-LINKED STRUCTURED TIME DEPOSITS VERSUS BARRIER AND STANDARD OPTIONS: A COMPARATIVE STUDY

Autorzy:

Krawiec, Monika

Powiązania:

https://bibliotekanauki.pl/articles/453937.pdf

Data publikacji:

2018

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki

Tematy:

structured time deposits
barrier options
foreign exchange rates

Opis:

The paper provides a short description of barrier options together with an analysis of their performance compared to the performance of standard options and structured time deposits that incorporate the element of barrier in their construction. The results obtained show that some of considered structured time deposits linked to the foreign exchange rates and standard options could bring some profits unlike the majority of coressponding barrier options. The disadavantage of barrier options is they can stay inactive or a “spike” in the underlying asset price can cause the option to be knocked-out.

Źródło:

Metody Ilościowe w Badaniach Ekonomicznych; 2018, 19, 4; 398-410
2082-792X

Pojawia się w:

Metody Ilościowe w Badaniach Ekonomicznych

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 97.

Tytuł:

English linguistic influence on Standard and American varieties of Polish: A comparative study

Autorzy:

Witalisz, Alicja

Powiązania:

https://bibliotekanauki.pl/articles/634564.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

borrowing, loanword, semantic loan, loan translation, American Polish, adaptation

Opis:

The paper examines the different ways in which English linguistic material is borrowed and adapted by two varieties of Polish, Standard Polish spoken in Poland and American Polish used by the Polish diaspora in the US. The aim of the study is to compare the factors that determine the type and range of loans in both varieties of Polish. The comparison of the ways in which Standard and American Polishes are influenced and shaped by English embraces three main areas: 1) types of loans as products of the borrowing process (such as loanwords, semantic loans, loan translations, syntactic calques, etc.), 2) adaptation of loanwords with reference to phonological, graphic, morphological and semantic adaptation, and 3) semantic fields that are most heavily affected by the borrowing process. The findings of the analysis help to identify the reasons for the discrepancies in the treatment of the English language material in the two varieties of Polish.

Źródło:

Studia Linguistica Universitatis Iagellonicae Cracoviensis; 2015, 130, 4
2083-4624

Pojawia się w:

Studia Linguistica Universitatis Iagellonicae Cracoviensis

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 98.

Tytuł:

On Fatherhood, Masculinities, and Family Policies in Poland and Sweden-a Comparative Study

Autorzy:

Suwada, Katarzyna
Plantin, Lars

Powiązania:

https://bibliotekanauki.pl/articles/1811377.pdf

Data publikacji:

2014-12-31

Wydawca:

Polskie Towarzystwo Socjologiczne

Tematy:

fatherhood
masculinity
family policy
gender roles
Polska
Sweden

Opis:

This article seeks to identify the relationships between fatherhood, masculinities, and the welfare state. The paper is based on fifty-two interviews conducted with Polish and Swedish fathers living with their biological children and their partners. A comparison of Polish and Swedish fathers enables us to comprehend how everyday practices and men’s thinking about parenthood and gender roles are connected to hegemonic masculinities models and family policy systems. The study shows how definitions of parental roles adopted in family policy influence men’s engagement in caring activities and the domestic sphere, as well as how they can help in the reconstruction of hegemonic masculinity and traditional gender order within family life.

Źródło:

Polish Sociological Review; 2014, 188, 4; 509-524
1231-1413
2657-4276

Pojawia się w:

Polish Sociological Review

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 99.

Tytuł:

Twórcze orientacje życiowe studentów. Studium porównawcze
Creative life orientations of students. Comparative study

Autorzy:

Cudowska, Agata

Powiązania:

https://bibliotekanauki.pl/articles/686770.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego

Tematy:

twórcza orientacja życiowa
twórczość codzienna
student
creative life orientations
everyday creativity

Opis:

In the following article the author presents the main assumptions of the concept of creative life orientations. This category is described as a specific, personal and committed way of fulfilling everyday duties in life. The characteristics of people who prefer creative life orientations were defined. The philosophical, psychological and pedagogical theoretical sources of the concept and the previous studies on creative life orientations among high school students, students and teachers were presented. The methodological assumptions of recent research, carried out in a sample of Polish and Belorussian academic youth, were described. The results of these studies are presented in the scope of sociodemographic specifics of both groups, the diagnosis of the preferences of creative life orientations and dependencies between the analyzed variables. It was found that preferences for creative life orientations prevail among the surveyed students, but at a fairly low level of acceptance of the theorems Scale CLO. Significant statistical differences between the national groups in terms of the age of the respondents, the study year and the environment of origin were observed. The existence of a correlation between mothers’ education and preferences of creative life orientations of Polish students was confirmed.
W artykule przedstawiono główne założenia koncepcji twórczych orientacji życiowych. Opisano tę kategorię jako specyficzny, osobisty i zaangażowany sposób pełnienia codziennych obowiązków w życiu. Scharakteryzowano cechy osób preferujących twórcze orientacje życiowe. Zaprezentowano filozoficzne, psychologiczne i pedagogiczne źródła teoretyczne koncepcji oraz dotychczasowe badania twórczych orientacji życiowych wśród uczniów szkół średnich, studentów i nauczycieli. Opisano założenia metodologiczne ostatnich badań, zrealizowanych w próbie polskiej i białoruskiej młodzieży akademickiej. Przedstawiono wyniki tych badań w zakresie specyfiki socjodemograficznej obu grup, diagnozy preferencji twórczych orientacji życiowych i zależności między analizowanymi zmiennymi. Stwierdzono, że wśród badanych studentów dominują preferencje dla twórczych orientacji życiowych, ale na dość niskim poziomie akceptacji twierdzeń Skali TOŻ. Zaobserwowano istotne różnice statystyczne między grupami narodowymi pod względem wieku badanych, rocznika studiów i środowiska pochodzenia. Potwierdzono istnienie korelacji między wykształceniem matek i preferencjami twórczych orientacji życiowych polskich studentów.

Źródło:

Nauki o Wychowaniu. Studia Interdyscyplinarne; 2018, 7, 2; 133-158
2450-4491

Pojawia się w:

Nauki o Wychowaniu. Studia Interdyscyplinarne

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 100.

Tytuł:

Comparative Study of Particle Swarm Optimization and Genetic Algorithms for Complex Mathematical Functions

Autorzy:

Valdez, F.
Melin, P.

Powiązania:

https://bibliotekanauki.pl/articles/384575.pdf

Data publikacji:

2008

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

genetic algorithms
particle swarm optimization (PSO)
hybrid systems
optimization

Opis:

The Particle Swarm Optimization (PSO) and the Genetic Algorithms (GA) have been used successfully in solving problems of optimization with continuous and combinatorial search spaces. In this paper the results of the application of PSO and GAs for the optimization of mathematical functions are presented. These two methodologies have been implemented with the goal of making a comparison of their performance in solving complex optimization problems. This paper describes a comparison between a GA and PSO for the optimization of complex mathematical functions.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2008, 2, 1; 43-51
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

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