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Wyświetlanie 1-15 z 83
Tytuł:
Józef Darski – Sein Leben und sein Werk
Józef Darski – his life and work
Autorzy:
Taborek, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/926965.pdf
Data publikacji:
2018-06-25
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Józef Darski
German grammar
model of analysis
Polish German studies
Opis:
In this contribution, we present the life and work of Józef Darski (1941–2016), a Polish German Philologist, Linguist and Grammarian. The research profile of Józef Darski contains such fields of interest as: dialectology, German grammar, contrastive German-Polish grammar as well as German as a foreign language. The most important work, which influenced his entire research output, was Linguistisches Analysemodell. Definitionen grundlegender grammatischer Begriffe. That model includes the analysis of phonological, morphological and syntactic levels of language.
Źródło:
Studia Germanica Posnaniensia; 2017, 38; 9-23
0137-2467
Pojawia się w:
Studia Germanica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is Being a Good Empiricist the Same as Being a Good Naturalist? The Case of the Relationship Between Science and Christian Theism
Autorzy:
Bylica, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2171596.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Zielonogórski. Instytut Filozofii
Tematy:
Alvin Plantinga
Jitse M. van der Meer
metaphysical naturalism
methodological naturalism
model of levels of analysis
theism
Paul Feyerabend
Opis:
Using Feyerabend's argumentation, and rephrasing of the problem in terms of the Model of Levels of Analysis, I show that a good empiricist need not be a (metaphysical or methodological) naturalist. I characterize the ideas of Alvin Plantinga and Jitse M. van der Meer as being representative of two different varieties of theistic response to the problem of the relationship between Christianity and contemporary science. Against van der Meer, I argue for Plantinga's conclusion about the value of theism-based science. Against both approaches, I point to situations where theistic assumptions do indeed influence the contents of observation.
Źródło:
Filozoficzne Aspekty Genezy; 2023, 20, 1; 1-33
2299-0356
Pojawia się w:
Filozoficzne Aspekty Genezy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
General bankruptcy prediction models for the Visegrád Group : the stability over time
Autorzy:
Tomczak, Sebastian Klaudiusz
Powiązania:
https://bibliotekanauki.pl/articles/29432382.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
SMEs
discriminant analysis
logit analysis
construction sector
stability of model
Opis:
Managers of enterprises must constantly face the continual changes on the market and fight for survival in a world of high competition. Therefore, it is important to systematically monitor the company’s financial condition. This will help to identify problems and give specific time to take corrective action. Bankruptcy prediction models are usually constructed for local goals. The purpose of the article is to build not only regional but also general discriminant and logit models for the SMEs operating in the construction industry in Visegrád Group countries. A total of 32 unique models were built and verified along with the Altman model for emerging markets. The paper also contributes to the literature by assessing the stability of the constructed models over time, which the models’ authors do not usually measure. The results showed that regional models are characterized by higher accuracy than general ones. However, general models can be adapted to the analyzed Visegrád Group with an accuracy of approximately 90%. The G1 LR model can be considered the best model, as it has relatively high accuracy and over-time stability.
Źródło:
Operations Research and Decisions; 2023, 33, 4; 171--187
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of a detailed kinetic model of natural gas combustion in IC engine
Autorzy:
Mansha, M.
Saleemi, A.R.
Javed, S.H.
Feroz, N.
Powiązania:
https://bibliotekanauki.pl/articles/779291.pdf
Data publikacji:
2011
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
analiza wrażliwości
model
analiza produkcji
sensitivity analysis
models
rate of production analysis
Opis:
Detailed kinetic models are important to describe the oxidation of hydrocarbon fuels. In the present study, a detailed kinetic models has been developed to simulate the combustion of natural gas in IC engine. The proposed models consists of 208 elementary reactions and 72 species. The rate of the production and sensitivity analysis of the proposed reaction models were carried out to visualize the effect of reactions on the formation of various pollutants. In the rate of production analysis, an absolute rate of production coefficients and the normalized rate of production coefficients were calculated for the reactions involved in the formation of pollutant species (CO, NO, NO2, & NH3). In sensitivity analysis, normalized logarithmic sensitivity coefficients were determined the reactions of rates affects the output concentrations of the pollutant species. These two analysis were carried out for two temperatures ranges i.e. 1500 °C and 4000 °C under stoichiometric conditions (when φ=1.0).
Źródło:
Polish Journal of Chemical Technology; 2011, 13, 1; 6-15
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Meta-analysis of the research impact of Baddeley’s multicomponent working memory model and Cowan’s embedded-processes model of working memory: A bibliometric mapping approach
Autorzy:
Gruszka, Aleksandra
Orzechowski, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/430623.pdf
Data publikacji:
2016-04-01
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multicomponent working memory model
embedded-processes model of working memory
meta-analysis
co-word analysis
bibliometric map
Opis:
In this study bibliometric mapping method was employed to visualise the current research trends and the impact of the two most influential models of working memory, namely: A. D. Baddeley and G. J. Hitch’s (1974) multicomponent working memory model and N. Cowan’s (1988) embedded-processes model of working memory. Using VOSviewer software two maps were generated based on the index-term words extracted from the research papers citing Baddeley (2000) and Cowan (2001), respectively. The maps represent networks of co-occurrences of index terms and can be interpreted as an indication of the main research fields related to the examined models of WM. The results of the analysis revealed that the spheres of influence of the two main conceptualisations of WM are rather different than similar. Although the first two clusters, i.e. “brain mapping” and “higher-level cognition and development” are present in both maps, their relative importance varies. The remaining clusters are unique to each map. Baddeley’s theory seems to have a greater influence on “neuropsychology”, while Cowan’s theory - on basic research on “biological systems”, including the nervous system in humans and animals. The second difference between these theories concerns their relations to functions and dysfunctions associated with particular sensory modalities: in Baddelay’s theory with the “auditory modality” cluster, and in Cowan’s - with the “visual modality” one.
Źródło:
Polish Psychological Bulletin; 2016, 47, 1; 1-11
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validity and Reliability of the Questionnaire Learning Environment of Numeracy
Autorzy:
Mayang Sari, Cynthia
Ridwan, Achmad
Sastrawijaya, Yuliatri
Rahmawati, Yuli
Powiązania:
https://bibliotekanauki.pl/articles/29520979.pdf
Data publikacji:
2024-03-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
learning environment of numeracy
Rasch model
Confirmatory Factor Analysis
Opis:
This study aims to assess the validity and reliability of the Questionnaire Learning Environment of Numeracy (QLEN) which consists of 60 items. The research was conducted on 264 students in the pilot study and 566 students in the extensive stage from six junior high schools in Central Kalimantan Province Indonesia. Analysis was conducted using confirmatory factor analysis and the Rasch model. The result showed that 58 items were valid and fit the Rasch model, item reliability value of 0.99 and a person reliability of 0.98. Thus, QLEN is a valid and reliable instrument to measure the numeracy learning environment.
Źródło:
The New Educational Review; 2024, 75; 152-163
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of civil engineering structures vibroisolation effectiveness
Autorzy:
Bednarz, J.
Targosz, J.
Powiązania:
https://bibliotekanauki.pl/articles/241751.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
vibration analysis
discrete-continuous model of vibration isolation system
Opis:
A properly designed and manufactured vibration isolation system of railroads and civil engineering structures has a decisive influence on the reduction of vibrations caused by crossing trains, trams and subway transferred to residential buildings This article presents an overview of current vibration isolation systems of railroads and civil engineering structures. Based on the effectiveness of the protection of residential and industrial buildings from vibrations the ranking of vibration isolation systems was proposed. The article also attempts to assess the effectiveness of vibration isolation systems currently used in rail trails. For this purpose, a discrete-continuous model of vibration isolation system of railway and tramway rails was build. For this model, dynamic analysis was carried out. Performed analysis allowed determining range of the natural frequency of vibration isolation system. The results of dynamic analysis allow pitching shift the natural frequency of the system under consideration from the frequency of excitation, which in turn is a fundamental condition for the proper operation of the vibration isolation. As part of work on a physical model of vibration isolation system there was also developed one-level crossings of roads and railroads. The work was carried out in a research project 4875/B/TO2/2010/38 financed by Ministry of Science and Higher Education.
Źródło:
Journal of KONES; 2012, 19, 4; 33-41
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the influence of slip in bolted joints on global structural deformations
Autorzy:
Kozioł, P.
Pawłowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/105074.pdf
Data publikacji:
2018
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
slip of bolted connections
deflections of structure
bar model
numerical analysis
Opis:
Shear connections of bearing type are one of the most commonly used types of bolted connections. This type of connection effectively transfers the load, when there is no gap between the bolt and the connected elements, the elimination of slack is often associated with a slipping. Neglecting the slip in an non-preloaded connection is a design error, which in some cases might lead to structural damage. The study presents the ways of taking into account the slip in connection in the analysis of the structure. The authors discuss the analytical approach based on the Fontviolant formula and the numerical approach in which software supporting the design of building structures is used. The aim of the study is to determine the influence of slip in nonpreloaded bolts on the deflection of truss structures. The basis for the conducted analyses was the damage to a conveyor that was subject to major deformations as a result of excessive slip in incorrectly designed bolted connections. Theoretical analyses were carried out for flat trusses and they were expanded to cover the most commonly used types of trusses. The paper discusses the difficulties, pointing, among others, to random parameters that affect the capacity of the connection. The obtained results confirm that it is necessary to take into account the slip and its significant influence on the value of structural deflection. They also provide a set of results that can be used as initial reference for the slip calculation. Especially, the influence of slip in non-preloaded overlap bolted connections on the global deformations of the structure.
Źródło:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2018, 65, 4; 81-92
2300-5130
2300-8903
Pojawia się w:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie analizy walorów estetyczno-widokowych w audycie krajobrazowym i waloryzacji gmin. Studium przypadku Jaworzna
The analysis of aesthetic and scenic values in landscape audit and municipality valorisation. Case study of Jaworzno
Autorzy:
Żemła-Siesicka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/87548.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Geograficzne
Tematy:
analiza walorów estetycznych
analiza walorów krajobrazowych
model graficzny
audyt krajobrazowy
Jaworzno
analysis of aesthetic
analysis of scenic values
graphic model
landscape audit
Opis:
Analiza walorów estetyczno-widokowych została wprowadzona do polskiego prawodawstwa poprzez audyty krajobrazowe. Stosowana jest także w innych dokumentacjach, m.in. waloryzacjach krajobrazowych gmin. W poniższym artykule przedstawiona została propozycja metodyki analizy estetyczno-widokowej na przykładzie wybranego punktu widokowego (Góry Wielkanoc) w Jaworznie wykorzystanej w opracowaniu waloryzacji przyrodniczej miasta. W ramach opracowania wykonano rysunki studialne oraz opisy przedstawiające zagospodarowania terenu, liczbę planów widokowych i kompozycję oraz dokonano na tej podstawie waloryzacji, oceny zagrożeń oraz wskazań do ochrony krajobrazu.
The analysis of aesthetic and scenic values has been introduced to Polish legislation by the landscape audit. It is also used in other documents and, inter alia, in landscape valorisation of communes and municipalities. The following article presents a proposal for the methodology of aesthetic and scenic analysis of a selected viewpoint (Wielkanoc Hill) of the city of Jaworzno. The analysis was done for the purpose of an environmental valorisation of Jaworzno. In this methodology, study drawings and descriptions were used to present the land development, the number of landscape plans and the composition. On this basis, valorisation, threat assessment and general indications for landscape protection were carried out.
Źródło:
Prace Komisji Krajobrazu Kulturowego; 2018, 40 (2); 209-224
1896-1460
2391-5293
Pojawia się w:
Prace Komisji Krajobrazu Kulturowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A dedicated sensitivity analysis and optimization application for industrial processes
Autorzy:
Myczkowska, Kamila
Szeliga, Danuta
Powiązania:
https://bibliotekanauki.pl/articles/29520087.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sensitivity analysis
modelling of industrial process
optimization
model validation
cooling of rails
Opis:
The paper describes the architecture and the use case of the developed Modelbox system for sensitivity analysis (SA), uncertainty analysis (UA) and the subsequent optimization of industrial processes. The proposed solution addresses the most common practical and technical problems encountered by researchers and engineers when performing sensitivity analysis. It combines the functions from the numerical toolbox with a simulation management system. Maintaining usability and a good user experience while managing complex investigations of time-consuming industrial process simulations is a very important feature of the system. Several improvements were introduced to optimize the computation time of analysis/modelling tasks, including the automatization of distributed calculations, persistent, transparent caching of simulation data and duration estimations from collected statistics. The system has the ability to perform remote, parallel, asynchronous computations of both analytic algorithms and numerical simulations. The system is dynamically scalable horizontally by using serverless computing endpoints and thus it can be easily adapted to the user’s current needs in a flexible way. Modelbox provides web-based access to analysis/modelling tasks from sampling, SA/UA, optimization to metamodelling. It is extended with numerous interactive visualization components for effective results control. In addition, to access data from the completed analysis, the system supports convergence tracking for SA estimates and intermediate optimization results. The process of controlled cooling of rails was considered as a case study. The formulated optimization task was to find a combination of process parameters that ensures a minimum volume fraction of bainite along with required interlamellar spacing and optimal homogeneity of hardness. Different sensitivity analysis methods were used to evaluate the significance of all variables with respect to their influence on the model output.
Źródło:
Computer Methods in Materials Science; 2021, 21, 4; 219-232
2720-4081
2720-3948
Pojawia się w:
Computer Methods in Materials Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CNC milling machine precision analysis through numerical modelling
Autorzy:
Svetlík, J.
Demeč, P.
Kráľ, J.
Powiązania:
https://bibliotekanauki.pl/articles/102601.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
accuracy of manufacturing machine
virtual prototyping
modal analysis
virtual model
Opis:
The motive behind the effort to make virtual prototyping more sophisticated is first of all cost reduction of manufacturing machine design, followed by reduction of lead time for development, prototyping and testing of the pre-manufacturing machine series. This article deals with the analysis of manufacturing precision of a 3-axial, numerically controlled milling machine. The methodology for precision analysis rests on a selected simplified numerical calculation model of a manufacturing machine on which virtual machining has been conducted. The mechanical inaccuracy itself is calculated by computer via the FEM analysis. The results are processed for visualization by the Excel software.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 2; 212-219
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hybrid computer system for the identification of metallic material models on the basis of laboratory experiments
Autorzy:
Rauch, Ł.
Górecki, G.
Pietrzyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/305778.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
inverse analysis
identification of model parameters
computer system
rings compression
Opis:
The identification of the proper parameters of material models plays a crucial role in the design of production technologies, especially in the case of modern materials with diversified properties under different boundary conditions. The procedure of identification is usually based on an optimization algorithm that uses sophisticated numerical simulations as a part of the goal function and compares the obtained results with experimental tests. Despite its reliability, such an approach is numerically inefficient. This paper presents the concept of how to replace the most numerically-demanding part of the identification procedure with metamodels, allowing us to maintain uniform result quality. The computer system, which allows us to manage input data, metamodels, and calculations, is proposed and described in detail in this paper. Finally, the proposed approach is validated on the basis of tests performed in the laboratory.
Źródło:
Computer Science; 2016, 17 (2); 123-143
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie programu komputerowego Experiment Panner do identyfikacji procesów rozróżniania składników mieszaniny bulw ziemniaka i kamieni
Application of the Experiment Planner computer program to the process identification for discrimination of components in bulbs and stones mixture
Autorzy:
Jakubowska, M.
Kukiełka, L.
Powiązania:
https://bibliotekanauki.pl/articles/290241.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
planowanie
eksperyment
analiza regresji
model matematyczny
model obiektu badań
experiment
planning
regression analysis
mathematical model
model of experimental object
Opis:
W artykule przedstawiono nowy program komputerowy do wspomagania eksperymentów. Opisano podstawowe jego możliwości na przykładzie sprawdzenia istotności wpływu czynników: ciężaru właściwego, długości, kształtu i masy na współczynnik rozpoznawania kamieni w składnikach mieszaniny bulw ziemniaka i kamieni.
The paper presents a new computer program assisting the experiments. Its fundamental possibilities were described by an example of checking the influence significance of factors.
Źródło:
Inżynieria Rolnicza; 2005, R. 9, nr 14, 14; 147-154
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Earnings management model for Visegrad Group as an immanent part of creative accounting
Autorzy:
Kováčová, Mária
Hrosova, Lenka
Durana, Pavol
Horak, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/19322663.pdf
Data publikacji:
2022
Wydawca:
Instytut Badań Gospodarczych
Tematy:
creative accounting
central Europe countries
model of creative accounting
regression analysis
Opis:
Research background: Creative accounting practices do not frequently violate the law and are not considered illegal; however, accounting managers may exploit legal ambiguities to portray the company's financial standing in accordance with management preferences. Therefore, the analysis is focused on the detection of earnings management in companies operating in the Visegrad Group, which represents one of the most commonly used techniques for revealing creative accounting. Purpose of the article: The aim of the presented study is to reveal the presence of creative accounting through the detection of earnings management in the countries of the Visegrad Group and, based on the detected results, to propose a regression model of earnings management in the Visegrad Group. Methods: To reveal the use of creative accounting in the Visegrad Group, ten selected models of earnings management were applied during the period 2016-2020 to a set of 8,134 companies. The Mann-Whitney test and multiple linear regression were used to verify the existence of earnings management. These findings served as the basis for the creation of the linear regression model of earnings management in the Visegrad Group. Findings & value-added: The presence of earnings management was best captured by the Hribar and Collins model in companies operating in the Visegrad Group in the period 2016-2020. The findings also confirmed that positive discretionary accruals acquired higher values over the entire period when compared to negative discretionary accruals, confirming that companies in the surveyed group manage their profits primarily by increasing them. Therefore, we created a regression model, that can serve as a unique basis and is capable of revealing the use of earnings management in the Visegrad Group, as until now nothing like this has been implemented in these countries. In conclusion, this study offers insights for academicians and researchers on creative accounting in the selected period. Lastly, the study contributes to the existing theory by conducting new research on the earnings management determinants of the countries studied.
Źródło:
Oeconomia Copernicana; 2022, 13, 4; 1143-1176
2083-1277
Pojawia się w:
Oeconomia Copernicana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of the dynamics of higher education’s influence on the level of wages
Autorzy:
Król, Anna
Powiązania:
https://bibliotekanauki.pl/articles/424835.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
Mincer model
pseudo rate of return to tertiary education
dynamic analysis
Opis:
The paper focuses on an assessment of the changes over time in tertiary education’s influence on the level of wages with the application of the Mincerian earnings function method. The conducted empirical research allowed for the identification of growth patterns in the so called pseudo rate of return to higher education in Poland and Germany in the last decade (using data from the Polish Social Diagnosis and German Socio-Economic Panel Study (SOEP)). In addition, an analysis of dynamics of influence of auxiliary factors on earnings (such as gender, geographical location, character of work etc.) is given. Since 1998, when the Sorbonne Declaration was signed, the development and modernization of higher education have been the priorities of the European Union policies. A significant part of the postulated reforms require changes in the area of funding of universities, in particular encouraging a shift from centralized input oriented funding mechanisms towards decentralized outcome oriented financing. In that context one of the key problems is the measurement of the efficiency and effectiveness of various aspects of higher universities activities, including the education area.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2014, 1(43); 60-73
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
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