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Wyświetlanie 1-15 z 761
Tytuł:
Modele rewitalizacji jako narzędzia zarządzania miastami
Autorzy:
Wańkowicz, Wiesław
Powiązania:
https://bibliotekanauki.pl/articles/639710.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
city revitalization, system analysis, model
Opis:
The paper presents the issue of revitalization models – starting from state policy, regional policies as well as local revitalization programs. Systems theory and graphic charts were used to draw up revitalization models. It helped to show desired structural-procedural model of revitalization. On that basis two conclusions were formulated: existing model of revitalization has many negative aspects and its change is necessary.
Źródło:
Zarządzanie Publiczne; 2010, 1-2(9-10)
2084-3968
Pojawia się w:
Zarządzanie Publiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Meta-Systemic Model of Transformation: A General Complexity-Based Approach in Political Science and International Relations
Autorzy:
Baranowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/15847709.pdf
Data publikacji:
2023-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Arab Spring
complexity
complex adaptive system
system
system analysis
Opis:
System-based research remains an important yet usually outdated and internally contradictory approach in political science and international relations. Based on concepts borrowed from physiology, cybernetics, and general system theory, the system-based approach popularised in the 1960s was cast away as outdated and ill-focused. Despite those systems, the theory was developed in natural sciences, eventually creating a paradigm more applicable to domestic and international politics. The weakest element of past systems (like the one proposed by D. Easton) was that they did not allow for a sudden and catastrophic transformation and lacked emergence. This paper aims to present a model that would allow for the system’s ordinary and catastrophic transformation. The complex adaptive system features were defined using relevant literature on a paradigm of complexity. Connecting it with the propositions of D. Easton, R. Axelrod, and M. Cohen, as well as R. Jervis, such a model was constructed. The theoretical introduction is supplanted with a general case study of the early phases of the Arab Spring in Tunisia. The model mirrors the complex systems’ dynamics, considering the agent-structure problem.
Źródło:
Polish Political Science Yearbook; 2023, 2(52); 113-128
0208-7375
Pojawia się w:
Polish Political Science Yearbook
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Method of Analysis of Safety Systems Dedicated to the Systems in Rail Vehicle
Autorzy:
Gill, Adam
Powiązania:
https://bibliotekanauki.pl/articles/503792.pdf
Data publikacji:
2013
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
safety systems
safety system analysis
Layer of Protection Analysis
Opis:
The detailed algorithm of SSARV(P) – Safety System Analysis of Rail Vehicles is presented in this paper. Particular steps of SSARV(P) take into account the selected rules of LOPA – Layer of Protection Analysis. SSARV(P) is an overall method of SSARV provided for conceptual phase of safety system. The essence of SSARV(P) is to evaluate the proposed safety system based on measures of hazard risk. The measure of hazard risk is determined using known risk models. This paper presents also a description of LOPA and its general algorithms. Basic information about the independent layers of protection are presented as well.
Źródło:
Logistics and Transport; 2013, 18, 2; 67-76
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decomposition and the interaction decoupling mode in electrical systems analysis
Autorzy:
Płaczek, S.
Powiązania:
https://bibliotekanauki.pl/articles/97258.pdf
Data publikacji:
2016
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
system complexity
hierarchy
decomposition
coordination
system analysis
algorithm concurrence
Opis:
Decomposition is the best method to analyze complicated systems. The whole system is divided into a set of smaller parts, i.e. subsystems. These items are connected to each other by input and output interfaces. Every subsystem could be analyzed using separate algorithms and procedures that are more suitable for solving the local task. In the article, a complicated electrical system is decomposed and the interaction decoupling mode is used to coordinate the local task solution. Each of the first–level subsystems, such as an optimization problem, is defined completely independently from the other problems. The subsystems are instructed to select the local input as well as the local interface output in an optimal fashion. The local task's solution depends not only on the internal subsystems’ parameters, but on the value of interfaces too. To achieve the global task solution, local tasks have to be coordinated using an appropriate coordination principle.
Źródło:
Computer Applications in Electrical Engineering; 2016, 14; 187-200
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Building an ontology for system analysis
Autorzy:
Burov, Y.
Pasichnyk, A.
Katrenko, V.
Powiązania:
https://bibliotekanauki.pl/articles/411235.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
system analysis
ontology
pattern
model
concept
semantic grid
Opis:
System analysis as scientific and engineering discipline underpins research and development in other areas. However, system analysis models and methods are often taught separately and, as a result, system analyst cannot form a holistic understanding of this area. In order to deepen our understanding of system analysis’ concepts and relations the ontology of this area was built. It was constructed based on models and methods of system analysis considered as knowledge patterns. The concept of system was selected as a central concept of ontology. Other important concepts, such as goal, function, decision and process are relating to it. Finally, the applications of created system analysis ontology for teaching system analysis in high school and as a part of semantic grid are discussed.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2018, 7, 3; 3-6
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy efficiency – selected thermo-ecological problems
Autorzy:
Ziębik, Andrzej
Stanek, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/239928.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency
system analysis
exergy
thermo-ecology
energy ecological
efficiency
Opis:
The paper is devoted to some problems connected with last modification of EU directive on energy efficiency, viz.: free choice of the measure concerning the improvement of energy efficiency, i.e. final or primary energy consumption, corresponding energy savings or energy-consumption index; however without cumulative consumption or cumulative savings of primary energy. In EU directive it has been stressed the importance of measurements systems (reliable measurement information); but has not been recommended any advanced validation of measurements results, nor energy auditing or algorithms of calculating the energy savings due to improvement of energy efficiency concerning large industrial plants. Evaluation of complex buildings should be realized by means of the system method (input-output analysis). The separate problem is devoted to application of thermo-ecological approach in the analysis of complete results of improving the energy efficiency. Human activity is connected with the depletion of nonrenewable resources, including primary energy, due to not only production of consumer goods but also the necessity of compensating the unfavourable effects of harmful emissions from energy-technological processes. Therefore the index of energy-ecological efficiency has been proposed as the most competent evaluation of improvement energy efficiency of production processes and systems.
Źródło:
Archives of Thermodynamics; 2020, 41, 2; 277-299
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of wavelet transform to identification of modal parameters of nonstationary systems
Zastosowanie transformaty falkowej do identyfikacji parametrów modalnych układów niestacjonarnych
Autorzy:
Uhl, T.
Klepka, A.
Powiązania:
https://bibliotekanauki.pl/articles/281277.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
wavelets transform application
modal model parameters identification
nonstationary system analysis
Opis:
In the paper an application of a time-frequency signal analysis technique for modal parameters identification is presented. Procedures of wavelet filtering, which allow estimating mechanical parameters for systems with non-constant parameters have been shown. The wavelets are used to detect natural frequency of the system and transform system time response into the time-scale domain. Presented method has been verified on simulation data for a two degrees of freedom discrete system. Two cases have been considered, with a constant and with a varying damping. The procedure has been applied to a real data recorded during a flight of ISKRA airplane.
W artykule przedstawiono możliwość zastosowania transformaty falkowej do identyfikacji parametrów modalnych układów mechanicznych. Pokazano procedury filtracji falkowej pozwalającej na wyznaczanie parametrów dynamicznych układów wykazujących niestacjonarność. Metodę zweryfikowano na danych symulacyjnych dla układu o dwóch stopniach swobody ze zmiennym tłumieniem. Opracowaną metodę zastosowano do badania zmian tłumienia w czasie lotu samolotu ISKRA.
Źródło:
Journal of Theoretical and Applied Mechanics; 2005, 43, 2; 277-296
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Outlier detection in the analysis of nested Gage R&R, random effect model
Autorzy:
Abduljaleel, Mohammed
Midi, Habshah
Karimi, Mostafa
Powiązania:
https://bibliotekanauki.pl/articles/1192468.pdf
Data publikacji:
2019-08-30
Wydawca:
Główny Urząd Statystyczny
Tematy:
measurement system analysis
mm location
nested Gage R&R
outlier
residuals
Opis:
Measurement system analysis is a comprehensive valuation of a measurement process and characteristically includes a specially designed experiment that strives to isolate the components of variation in that measurement process. Gage repeatability and reproducibility is the adequate technique to evaluate variations within the measurement system. Repeatability refers to the measurement variation obtained when one person repeatedly measures the same item with the same Gage, while reproducibility refers to the variation due to different operators using the same Gage. The two factors factorial design, either crossed or nested factor, is usually used for a Gage R&R study. In this study, the focus is only on the nested factor, random effect model. Presently, the classical method (the method of analysing data without taking into consideration the existence of outliers) is used to analyse the nested Gage R&R data. However, this method is easily affected by outliers and, consequently, the measurement system’s capability is also affected. Therefore, the aims of this study are to develop an identification method to detect outliers and to formulate a robust method of measurement analysis of nested Gage R&R, random effect model. The proposed methods of outlier detection are based on a robust mm location and scale estimators of the residuals. The results of the simulation study and real numerical example show that the proposed outlier identification method and the robust estimation method are the most successful methods for the detection of outliers.
Źródło:
Statistics in Transition new series; 2019, 20, 3; 31-56
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a leveling system for construction equipment
Autorzy:
Dedov, Denis
Siukhin, Alexandr
Obukhov, Artem
Powiązania:
https://bibliotekanauki.pl/articles/375008.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
levelling system
construction equipment
algorithmic support
system analysis
system niwelacji
maszyny budowlane
wsparcie algorytmiczne.
analiza systemu
Opis:
The quality of the roadway has a significant impact on the ability of drivers to drive their vehicles. Violation of the integrity of the coating, its geometrical parameters (shape), and the condition of the surface of the coating adversely affect the behavior of drivers, does not allow for correct driving of the vehicle, and leads to the occurrence of traffic accidents of varying severity. The current problem in the implementation of road construction works is to increase the level of automation of construction equipment and increase the accuracy of profiling. The article considers the main types of leveling systems, the scope of their application, advantages, and disadvantages. Based on the conducted analysis, the recommendations are formulated for the developed automated leveling system, its structure, and principles of functioning. The main components of the leveling system, their functions, and the connections between them are considered. The scientific novelty of this article is to develop an original algorithm for the functioning of an automated leveling system. It includes the main stages of the profiling process: installation by a laser plane, determination of its position, adjustment of the position of the working element of construction equipment, and differs due to the necessary mathematical support for the implementation of the laser plane control process. The algorithm allows one to develop software that implements the basic operations of managing the profiling process.
Źródło:
Transport Problems; 2019, 14, 3; 49-62
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie algebr hiperzespolonych w przetwarzaniu sygnałów
Application of hypercomplex algebras in signal processing
Autorzy:
Błaszczyk, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/134792.pdf
Data publikacji:
2016
Wydawca:
ADVSEO
Tematy:
hypercomplex algebras
quaternion Fourier transform
octonion Fourier transform
system analysis
partial differential equations
Opis:
The subject of this paper is the application of hypercomplex algebras (in particular quaternions and octonions) in the analysis of time-invariant linear systems. We present the Cayley-Dickson construction of hypercomplex algebras and its important properties. Moreover, we formulate the concept of quaternion and octonion Fourier transform and their properties important from the signal processing point of view. We present an overview of known quaternion Fourier transform applications in the analysis of systems and partial differential equations of two variables. We also point out the direction of further work in the subject of application of the octonion Fourier transform in system analysis and analysis of partial differential equations of three variables. Such considerations are possible thanks to recently proved properties of octonion Fourier transform, which are also stated in this paper.
Źródło:
Technical Issues; 2016, 3; 13-18
2392-3954
Pojawia się w:
Technical Issues
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power system stability with parallel active filter ensuring compensation of capacitive reactive power of a resonant LC circuit
Autorzy:
Płatek, T.
Powiązania:
https://bibliotekanauki.pl/articles/201301.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
parallel active filter
passive filter
system stability analysis
Opis:
This paper presents an analysis allowing for the determination of the differential equation describing the circuit of the active filter inverter output current control with an additional measurement of input voltage. The resulting equation allows to determine the conditions that ensure stable operation of the filter with the load in form of a resonant LC circuit. Analysis results were confirmed by computer simulation and experimental studies of commercial active filter.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 2; 353-361
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dealer-service center competitiveness increase using modern management methods
Poprawa konkurencyjności dealerskiego centrum serwisowego przy wykorzystaniu nowoczesnych metod zarządzania
Autorzy:
Makarova, I.
Khabibullin, R.
Belyaev, A.
Belyaev, E.
Powiązania:
https://bibliotekanauki.pl/articles/375158.pdf
Data publikacji:
2012
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
dealerskie centrum serwisowe
metoda BSC
analiza systemu
dealer-service center
BSC method
system analysis
Opis:
In article the method of a management automotive company dealer -service network by application of decision-making allowing support system on the basis of network subjects functioning indicators analysis and comparison of their values during the previous and present periods to develop the decision in the field of spare parts deliveries optimization is offered.
Źródło:
Transport Problems; 2012, 7, 2; 53-59
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evaluation of production line measurement process quality
Ocena jakości procesu pomiarowego na linii produkcyjnej
Autorzy:
Zalewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/256409.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:
measurement process
repeatability analysis
reproducibility analysis
Measurement System Analysis
MSA
production process
proces pomiarowy
analiza powtarzalności
analiza odtwarzalności
proces produkcyjny
Opis:
In production control processes, many decisions are made based on measurements conducted during the production itself. Therefore, the product quality, the equipment operating conditions, and the course of production process are all influenced by the quality of measurement system in use. Repeatability and Reproducibility Analysis (R&R), which is one of the methods of Measurement System Analysis (MSA), can be used in order to evaluate the measurement system’s precision. This article presents an evaluation of a measurement system, transferred directly from a Control Department to a Production Line in one of the enterprises in Podlaskie region. For the calculation, the author used the results of a measurement experiment in the surveyed enterprise carried out in the STATISTICA software. There was also an analysis conducted of cause-and-effect in relation to measurement processes of bad quality.
W procesach sterowania produkcją wiele decyzji podejmowanych jest na podstawie przeprowadzonych w jej trakcie pomiarów. Jakość stosowanego procesu pomiarowego ma więc wpływ na jakość wyrobów, warunki eksploatacji maszyn, przebieg procesu produkcji. Do oceny poprawności systemu pomiarowego można wykorzystać analizę powtarzalności i odtwarzalności (R&R), która jest jedną z metod analizy MSA (Measurement System Analysis). W artykule przedstawiono ocenę jakości systemu pomiarowego, który został przeniesiony z działu kontroli jakości bezpośrednio na linię produkcyjną w jednym z przedsiębiorstw w województwie podlaskim. Do obliczeń wykorzystano wyniki eksperymentu pomiarowego w badanym zakładzie opracowane przy użyciu aplikacji STATISTICA. Przeprowadzono również analizę przyczynowo-skutkową złej jakości procesów pomiarowych.
Źródło:
Problemy Eksploatacji; 2014, 3; 151-163
1232-9312
Pojawia się w:
Problemy Eksploatacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zarządzanie bezpieczeństwem obywateli
Management of Citizens Safety
Autorzy:
Lisiecki, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1849765.pdf
Data publikacji:
2020-05-12
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
bezpieczeństwo narodowe
analiza systemowa
zarządzanie bezpieczeństwem obywateli
national safety
system analysis
management of citizens safety
Opis:
National safety system is an important element ensuring safe functioning of the state and its citizens. For this reason it is and has to be subjected to permanent identyfication and analysis covering various aspects. Identyfication in the field of real and possible treats to national safety is increasing. For the overall observation of how national safety system operates, the best seems to be a system analysis, which also make it possible to search for, construct and evaluate solutions for the near and further future in a more rational way.
Źródło:
Roczniki Nauk Społecznych; 2006, 34, 3; 187-195
0137-4176
Pojawia się w:
Roczniki Nauk Społecznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie układów dynamicznych szlifowania wałów o małej sztywności
Modelling dynamic systems of low-rigid shaft grinding
Autorzy:
Świć, A.
Taranenko, W.
Szabelski, J.
Powiązania:
https://bibliotekanauki.pl/articles/301022.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
modelowanie
model matematyczny
wał
obróbka ubytkowa
podejście systemowe
identification
mathematical model
shaft
machining
system analysis
Opis:
Przedstawiono opracowany model uogólniony i cząstkowy szlifowania. Utworzono uogólniony schemat strukturalny układu dynamicznego w przypadku walcowego szlifowania oscylacyjnego wałków o małej sztywności. Zaprezentowano również model matematyczny układu technologicznego przy szlifowaniu wgłębnym wałków sprężyście odkształcalnych o małej sztywności. Modele matematyczne układu dynamicznego szlifowania wałków o małej sztywności w stanie sprężyście-odkształcalnym przedstawiono w postaci siedmiopoziomowej struktury hierarchicznej.
The generalized and partial mathematical model of grinding is introduced. The structural pattern of dynamic system of low-rigid shafts oscillatory grinding as well as mathematical model of technological system of low-rigid shafts plunge grinding are presented. Mathematical models of dynamic system of low-rigid shafts grinding are presented as 7-layer structured diagram.
Źródło:
Eksploatacja i Niezawodność; 2011, 2; 13-24
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 761

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