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Tytuł:
Towards CLP-based task-oriented DSS for SME
Autorzy:
Tomczuk, I.
Bzdyra, K.
Banaszak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/118215.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
decision support
constraint logic programming
production planning
modelling
scheduling
Opis:
Decision making supported by task-oriented software tools plays a pivotal role in a modern enterprises. That is because commercially available ERP systems are not able to respond in an interactive on-line/real-time mode. It means a new generation of DSS that enable a fast prototyping of production flows in multiproject environment as well as an integrated approach to a layout planning, production routing, batch-sizing and scheduling problems is needed. In that context, the constraint logic programming techniques allowing declarative representation of a decision making problem provide a quite attractive alternative. So, some issues regarding modelling of decision making and searching strategies development are discussed in the contribution. The results obtained are implemented in a software package supporting production flow planning in the SMEs. Illustrative example of the ILOG-based software application is provided.
Źródło:
Applied Computer Science; 2005, 1, 1; 181-200
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grain hardness of wheat bred in Poland and its relationship to starch damage during milling
Autorzy:
Obuchowski, W.
Salmanowicz, B.
Banaszak, Z.
Adamski, T.
Surma, M.
Kaczmarek, Z.
Majcher, M.
Lugowska, B.
Kuczynska, A.
Krystkowiak, K.
Powiązania:
https://bibliotekanauki.pl/articles/25296.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:
International Agrophysics; 2010, 24, 1; 69-74
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Podstawy higieny narządu głosu w pracy nauczycieli i wykładowców
Basic principle of teachers voice health
Autorzy:
Gębska, M.
Wojciechowska, A.
Weber-Nowakowska, K.
Żyżniewska- Banaszak, E.
Powiązania:
https://bibliotekanauki.pl/articles/180566.pdf
Data publikacji:
2013
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomia
emisja głosu
czynniki ryzyka
choroby zawodowe
ergonomics
risk factors
occupational diseases
Opis:
Znaczny wzrost rozpoznawanych chorób zawodowych narządu głosu zwłaszcza wśród nauczycieli, skłonił autorów artykułu do przeanalizowania dostępnych materiałów naukowych i opracowania zasad profilaktyki oraz programu prewencji narządu głosu. Wszyscy polscy specjaliści z dziedziny foniatrii i laryngologii podkreślają w swoich pracach, że najskuteczniejszym sposobem zapobiegania zaburzeniom emisji głosu jest usunięcie czynników wpływających na dysfunkcję.
The significant increase in diagnosed occupational diseases related to voice disorders has prompted the authors to examine the available scientific materials and to develop principles of and a programme for preventing voice disorders. All Polish specialists in laryngology and phoniatrics stress that the most effective way to prevent the disturbance of speech is to eliminate factors contributing to the dysfunction.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2013, 2; 18-21
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of frequency response of transformer winding with axial deformations
Autorzy:
Gawrylczyk, K. M.
Banaszak, S.
Powiązania:
https://bibliotekanauki.pl/articles/140733.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transformer
winding
frequency response analysis (FRA)
lumped parameters method
transmission line method
Opis:
One of important methods used for diagnostics of a transformer’s active part is Frequency Response Analysis (FRA). It allows to determine the mechanical condition of windings, their displacements, deformations and electric faults, as well as some problems with internal leads and connections, core and bushings. Still pending problem is interpretation of measurements results. One of approaches is application of computer modeling to simulate various failure modes and connected with them changes in FRA response. The paper presents two types of models, one based on lumped parameters with RLC elements, and one based on distributed parameters with TLM method. Both methods give similar results, comparable to real measurements of simulated coil.
Źródło:
Archives of Electrical Engineering; 2014, 63, 1; 5-17
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research framework for studying driver distraction on Polish city highways
Autorzy:
D'Souza, K. A.
Maheshwari, S. K.
Banaszak, Z. A.
Powiązania:
https://bibliotekanauki.pl/articles/406897.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
accident data analysis
modeling drive distraction
multinomial logistic regression
predicting driver distraction risk
Distraction Risk Index
model validation
Opis:
Analysis of accidents has found driver distraction to be a significant cause of accidents on the highways [1]. Therefore, studying the causes of driver distraction that impact its risk level is needed for a better understanding of accident occurrences. There is general scarcity of research in this field with no established research framework to study driver distractions. This paper proposes a modular research framework for conducting a driver distraction study on Polish city highways. The framework contains guidelines for distraction studies for wide range of cost and time intervals such as a quick, low cost study like analysis of existing accident databases maintained by the cities to relatively higher cost, longer duration study involving field data collection, statistical modeling, and analysis. A city may choose one or more modules to suit their study requirements including statistical and simulation tools to assess and validate the historical or empirical result. The framework is based on the careful modifications and revisions of an earlier transit bus driver study conducted in the Commonwealth of Virginia, U.S.A., and results from this research are presented for purposes of illustration.
Źródło:
Management and Production Engineering Review; 2013, 4, 2; 12-24
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyclic scheduling and diophantine problems
Autorzy:
Bocewicz, G.
Bzdyra, K.
Banaszak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/118273.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
diophantine problem
cyclic scheduling
time-table
multicriteria optimization
Opis:
Cyclic scheduling concerns both kinds of questions following the deductive and inductive ways of reasoning. First class of problems concentrates on rules aimed at resources assignment as to minimize a given objective function, e.g. the cycle time, the flow time of a job. In turn, the second class focuses on a system structure designing as to guarantee the assumed qualitative and/or quantitative measures of objective functions can be achieved. The third class of problems can be seen, however as integration of earlier mentioned, i.e. treating design and scheduling or design and planning simultaneously. The complexity of these problems stems from the fact that system configuration must be determined for the purpose of processes scheduling, yet scheduling must be done to devise the system configuration. In that context, the contribution provides discussion of some Diophantine problems solubility issues, taking into.
Źródło:
Applied Computer Science; 2009, 5, 1; 11-25
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integracja problemów doboru, alokacji i planowania działań zespołu mobilnych robotów inspekcyjnych: model deklaratywny
Integrated approach to selection, docking and routing planning of multi mobile robot inspection system: declarative modeling perspective
Autorzy:
Bocewicz, G.
Bzdyra, K.
Banaszak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/395413.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
system robotów mobilnych
inspekcja pomieszczeń
programowanie z graniczeniami
multi mobile robot system
indoor inspection
constraints programming
Opis:
Rozważany problem doboru, alokacji i planowania działań grupy robotów mobilnych w środowisku pomieszczeń zamkniętych sformułowany został w modelu deklaratywnym języka OZ Mozart. Dla zadanego zbioru zmiennych decyzyjnych charakteryzujących środowisko pomieszczeń zamkniętych i przemieszczające się w nim roboty oraz zbioru ograniczeń wiążących te zmienne, poszukiwana jest strategia planowania struktury i alokacji elementów umożliwiająca w określonym horyzoncie czasu inspekcję zadanej liczby pomieszczeń. Proponowane podejście zilustrowane zostało na załączonych przykładach.
Declarative modeling provides attractive perspective for integrated approach to selection, docking and routing planning of multi mobile robot inspection system problem formulation. For given set decision variables describing indoor environment and acting robots as well as the set of constraints limiting these variables robots' navigation strategy is sought out. The solution should respond to the question: what kind and how many and in which way initially docked robots enable to inspect a given indoor environment within a given time horizon? The approach proposed is illustrated on multiple examples.
Źródło:
Postępy Nauki i Techniki; 2011, 9; 52-67
2080-4075
Pojawia się w:
Postępy Nauki i Techniki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Towards automated synthesis of concurrent control programs
Autorzy:
Bocewicz, G.
Bzdyra, K.
Banaszak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/117806.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
automated synthesis
automatic modeling
concurrent control programs
Opis:
One of the key problems in the area of automatic synthesis of real-time concurrent control programs is a problem of automated modeling of systems comprising multiple activities or processes that proceed concurrently. In that context, the discrete-event systems framework enabling to predict the modeled objects performance and then to design of assumed quality control program on the basis of the given specification of the processes controlled, plays a crucial role. From that point of view, the Petri nets can be seen as a most widely recognized tool aimed at modeling system’s concurrency. So, the main objective of our contribution is to illustrate the Petri nets based approach from both: IF…THEN… rules system’s behavior specification and its Turing machine like representation points of view.
Źródło:
Applied Computer Science; 2011, 7, 2; 7-20
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural and Electrical Characterization of Undoped Diamond Layer Grown by HF CVD
Autorzy:
Banaszak-Piechowska, A.
Paprocki, K.
Fabisiak, K.
Dudkowiak, A.
Szybowicz, M.
Staryga, E.
Powiązania:
https://bibliotekanauki.pl/articles/1032579.pdf
Data publikacji:
2017-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.cp
81.05.ug
73.50.Gr
73.61.-r
Opis:
The undoped diamond layers were prepared using hot filament chemical vapor deposition technique. The controlled variation of the deposition parameters resulted in the layers with varying amount of nondiamond impurities. Routine characterization of the layers was carried out using scanning electron microscopy, X-ray diffractometry, and the Raman spectroscopy. Detailed measurements of room temperature electrical conductivity (σ₃₀₀), current-voltage characteristics have yielded useful information about the electrical conduction mechanism in this interesting material. The σ₃₀₀ and I-V characteristic measurements were done in sandwiched configuration taking care off the surface effects. The diamond shows room temperature dc conductivity reaching the values in the range of σ₃₀₀ ≈0.1-1 μS/cm. The I-V characteristics in these layers show space charge limited conduction behavior with I ~ V² in high voltage region. The obtained results are explained in terms of chemically adsorbed hydrogen on the surface of diamond layers, which is a source of acceptor states just above the top of valence band.
Źródło:
Acta Physica Polonica A; 2017, 132, 4; 1411-1414
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer modeling in the diagnostics of transformers’ windings deformations
Autorzy:
Banaszak, S.
Gawrylczyk, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/97341.pdf
Data publikacji:
2010
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
transformer
computer model
winding of the transformer
frequency response
Opis:
The diagnostics of power transformers is very important in order to plan repairs and replacements of aged population of transformers operated in Poland and Europe. One of these methods is Frequency Response Analysis - FRA. It can detect any mechanical changes in active part of transformer, which may even lead to serious faults of units in service. As the method is based on comparison of measured curves, which are not always available from previous measurements the computer modeling was applied to create models of windings’ response. The paper presents examples of models created for simple windings and also for real transformer with some deformations of windings simulated.
Źródło:
Computer Applications in Electrical Engineering; 2010, 8; 132-140
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of other windings on frequency response of power transformers
Autorzy:
Banaszak, S.
Gawrylczyk, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/378065.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
transformer
frequency response analysis (FRA)
modelling of windings
Opis:
The diagnostics of power transformers is a very fast developing branch. Due to increasing average age of assets and changes in asset management strategies, nowadays companies introduce asset management based on technical condition. One of important methods used for diagnostics of a transformer’s active part is Frequency Response Analysis (FRA). It allows determination of mechanical condition of windings, their displacements, deformations and electric faults, as well as some problems with internal leads and connections, core and bushings. In the FRA measurements of many power transformers there can be observed a first resonance, which position on frequency axis and damping factor seems to be similar for primary and secondary windings. The authors are going to explain this strange phenomenon, not depending on inductance of the winding being measured.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2015, 81; 31-38
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Practical use of RLC-models of transformers’ windings for determination of local displacements
Autorzy:
Banaszak, S.
Gawrylczyk, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/97720.pdf
Data publikacji:
2013
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
transformer’s diagnostic
frequency response analysis (FRA)
lumped parameter models
Opis:
The diagnostics of power transformers is a very fast developing branch, due to increasing average age of assets and changes in asset management strategies, nowadays companies introduce asset management based on a real technical condition. One of important methods used for diagnostics of a transformer’s active part is Frequency Response Analysis (FRA). It allows determination of mechanical condition of windings, their displacements, deformations and electric faults, as well as some problems with internal leads and connections, core and bushings. For the aim of windings impedance modeling the RLC models are applied. The idea of lumped parameters models was presented in [6]. The new universal model basing on circuit solution is developed in this paper. Lumped parameters used in calculations are obtained with finite element method and Maxwell package. The examples of models created for simple windings were compared to real measurements.
Źródło:
Computer Applications in Electrical Engineering; 2013, 11; 100-109
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
RLC-models for computer modeling of transformers’ windings frequency response
Autorzy:
Banaszak, S.
Gawrylczyk, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/376937.pdf
Data publikacji:
2013
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
power transformers
FRA
frequency response analysis (FRA)
RLC models
Opis:
The diagnostics of power transformers is a very fast developing branch, due to increasing average age of assets and changes in asset management strategies, nowadays companies introduce asset management based on technical condition. One of important methods used for diagnostics of a transformer’s active part is Frequency Response Analysis (FRA). It allows determination of mechanical condition of windings, their displacements, deformations and electric faults, as well as some problems with internal leads and connections, core and bushings. For the aim of windings impedance modeling the RLC models are applied. The idea of lumped parameters models was presented in [6]. The new universal model basing on circuit solution is developed in this paper. Lumped parameters used are calculated with finite element method and Maxwell package. The examples of models created for simple windings were compared to real measurements.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2013, 73; 107-113
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
TLM-method for Computer Modeling of Transformers’ Windings Frequency Response
Autorzy:
Banaszak, S.
Gawrylczyk, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/97469.pdf
Data publikacji:
2012
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
TLM
frequency response analysis (FRA)
FRA
transformer windings
Opis:
The diagnostics of power transformers is a very fast developing branch, due to increasing average age of assets and changes in asset management strategies, nowadays companies introduce asset management based on technical condition. One of important methods used for diagnostics of a transformer’s active part is Frequency Response Analysis (FRA). It allows determination of mechanical condition of windings, their displacements, deformations and electric faults, as well as some problems with internal leads and connections, core and bushings. For the aim of windings impedance modeling the transmission-line models are applied. The idea of TLM was presented in [1]. While the length of transformer wires is comparable to wave length at high frequency, such approach is reasonable. The paper presents examples of models created for simple windings.
Źródło:
Computer Applications in Electrical Engineering; 2012, 10; 137-145
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
TLM-method for computer modeling of transformers’ windings frequency response
Autorzy:
Banaszak, S.
Gawrylczyk, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/376947.pdf
Data publikacji:
2012
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
power transformers
FRA
TLM
frequency response analysis (FRA)
Opis:
The diagnostics of power transformers is a very fast developing branch, due to increasing average age of assets and changes in asset management strategies, nowadays companies introduce asset management based on technical condition. One of important methods used for diagnostics of a transformer’s active part is Frequency Response Analysis (FRA). It allows determination of mechanical condition of windings, their displacements, deformations and electric faults, as well as some problems with internal leads and connections, core and bushings. For the aim of windings impedance modeling the transmission-line models are applied. The idea of TLM was presented in [1], While the length of transformer wires is comparable to wave length at high frequency, such approach is reasonable. The paper presents examples of models created for simple windings.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2012, 69; 41-47
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 20

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