Temat: Hybrid systems - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dodatnie liniowe układy hybrydowe - realizacja w postaci ogólnego modelu dwuwymiarowego
Positive linear hybrid systems - realization in the form of the two-dimensional general model
Autorzy:: Sajewski, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/275519.pdf
Data publikacji:: 2010
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: układy hybrydowe
hybrid systems
Opis:: Przedstawione zostały liniowe układy hybrydowe opisane modelem ogólnym układu dwuwymiarowego. Podane zostały warunki zewnętrznej i wewnętrznej dodatniości układu hybrydowego. Sformułowano problem realizacji dla hybrydowych układów liniowych w postaci dwuwymiarowego modelu ogólnego. Zaproponowano metodę wyznaczania realizacji dla danej właściwej macierzy transmitancji operatorowych. Sformułowano procedurę wyznaczania realizacji, którą zilustrowano przykładem numerycznym.
Linear hybrid system described by the general two-dimensional model is proposed. Conditions for external and internal positivity of hybrid systems are given. The realization problem for linear hybrid systems described by the general model is formulated. The method for finding a realization of a given proper transfer matrix is proposed. A procedure for computation of a realization is proposed and illustrated by a numerical example.
Źródło:: Pomiary Automatyka Robotyka; 2010, 14, 2; 510-518
1427-9126
Pojawia się w:: Pomiary Automatyka Robotyka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Lie algebra approach in the study of the stability of stochastic linear hybrid systems
Metody Lie algebr w badaniu stabilności stochastycznych układów hybrydowych
Autorzy:: Seroka, E.
Socha, L.
Powiązania:: https://bibliotekanauki.pl/articles/280962.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: hybrid systems
nonlinear systems
asymptotic stability
Opis:: The problem of the stability of a class of stochastic linear hybrid systems with a special structure of matrices and a multiplicative excitation is considered. Sufficient conditions of the exponential p-th mean stability and the almost sure stability for a class of stochastic linear hybrid systems with the Markovian switching are derived. Also, sufficient conditions of the exponential mean-square stability for a class of stochastic linear hybrid systems satisfying the Lie algebra conditions with any switching are found. The obtained results are illustrated by examples and simulations.
W pracy rozważony został problem stabilności klasy liniowych stochastycznych układów hybrydowych ze szczególną strukturą macierzy i multiplikatywnym szumem. Znalezione zostały warunki wystarczające dla eksponencjalnej p-średniej stabilności i eksponencjalnej stabilności prawie na pewno dla klasy stochastycznych liniowych układów hybrydowych z Markowskim przełączaniem. Dodatkowo podane zostały warunki wystarczające dla eksponencjalnej stabilności średnio-kwadratowej dla klasy stochastycznych liniowych układów hybrydowych z dowolnym przełączaniem spełniających warunki Lie algebry. Otrzymane wyniki zilustrowane zostały przykładami i symulacjami.
Źródło:: Journal of Theoretical and Applied Mechanics; 2011, 49, 1; 31-50
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Full-electric, hybrid and turbo-electric technologies for future aircraft propulsion systems
Autorzy:: Łukasik, B.
Wiśniowski, W.
Powiązania:: https://bibliotekanauki.pl/articles/243487.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: full electric
turbo-electric
hybrid systems
distributed propulsion systems
Opis:: Recently a huge progress in the field of electrical machines makes them more available for aviation. Assuming a big leap forward of electric technology in the near future, many research institutes around the World examine a revolutionary propulsion system which employs electrical machines. This idea can be a perfect response to a drastically growing air traffic and its demands about emission and fuel consumption reduction. There are already manufactured full electric, ultralight airplanes, which show that the technology is promising and future-proof. What is more it seems to be a key enabler for the development of the other technology that will influence the future of aircraft design and will allow introducing completely new airplane architectures. That is why Institute of Aviation in collaboration with The Ohio State University conducts investigation and analysis on feasibility of using such systems for aircraft propulsion. For this task a completely new tool based on Numerical Propulsion System Simulation (NPSS) environment is being developed. It will enable to analyse the electric devices conjugated with turbine engine as a whole propulsion system in the matter of its performance characteristics. The purpose of this paper is to present some of the most promising ideas and already accomplished analysis of different kinds of architectures. The analysis and optimization of the system, as well as cost effectiveness will be presented.
Źródło:: Journal of KONES; 2016, 23, 4; 305-310
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Stability and controllability of switched systems
Autorzy:: Klamka, J.
Czornik, A.
Niezabitowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/200548.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hybrid systems
stability
Lyapunov function
characteristic exponents
controllability
Opis:: The study of properties of switched and hybrid systems gives rise to a number of interesting and challenging mathematical problems. This paper aims to briefly survey recent results on stability and controllability of switched linear systems. First, the stability analysis for switched systems is reviewed. We focus on the stability analysis for switched linear systems under arbitrary switching, and we highlight necessary and sufficient conditions for asymptotic stability. After that, we review the controllability results.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 3; 547-555
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Solvability of 2D hybrid linear systems - comparsion of three different methods
Autorzy:: Kaczorek, T.
Marchenko, V.
Sajewski, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/387251.pdf
Data publikacji:: 2008
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: systemy liniowe
symulacja
systemy hybrydowe
linear systems
simulation
hybrid systems
Opis:: A class of positive hybrid linear systems is introduced. Three different methods for computation of solutions of the hybrid system are proposed. The considerations are illustrated by numerical example. Simulations of solution have been shown for the methods.
Źródło:: Acta Mechanica et Automatica; 2008, 2, 2; 59-66
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

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

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Skocz do pozycji: 7.

Tytuł:: Pointwise completeness and pointwise degeneracy of standard and positive hybrid linear systems described by the general model
Autorzy:: Kaczorek, T.
Powiązania:: https://bibliotekanauki.pl/articles/229797.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: pointwise completeness
degeneracy
standard
positive
general model
hybrid systems
Opis:: Necessary and sufficient conditions for the pointwise completeness and pointwise degeneracy of the standard and positive hybrid linear systems described by the general model are established. It is shown that the standard general model is always pointwise complete and it is not pointwise degenerated and the positive general model is pointwise complete if and only if its matrix A2 is diagonal.
Źródło:: Archives of Control Sciences; 2010, 20, 2; 123-131
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Application of natural zeolite for intensification of municipal wastewater treatment
Autorzy:: Ospanov, O.
Myrzakhmetov, M.
Andraka, D.
Dzienis, L.
Powiązania:: https://bibliotekanauki.pl/articles/123094.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: natural zeolite
hybrid systems
attached-suspended growth systems
wastewater treatment
nitrogen removal
Opis:: The purpose of this research was to prove that a hybrid system including activated sludge and biofilm attached to carrying media (natural zeolite) can improve the efficiency of municipal wastewater treatment. The study was performed using a pilot-scale plant installed on Almaty Wastewater Treatment Plant (Kazakhstan) and treated sewage after preliminary mechanical treatment. The investigations were conducted in 2 stages: with installation without packing media (activated sludge only) and packed with zeolite from Chankanaysky field (activated sludge and biofilm). The results from the study showed a significant improvement of treatment efficiency for all examined parameters (BOD5, COD, suspended solids, nitrogen compounds and phosphates). Microbiological examination of biomass from the bioreactor indicated high diversity and activity of identified species, proving good conditions for both activated sludge and biofilm.
Źródło:: Journal of Ecological Engineering; 2016, 17, 5; 57-63
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Reachability of linear hybrid systems described by the general model
Autorzy:: Kaczorek, T.
Rogowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/229830.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: reachability
standard
positive
general model
hybrid systems
piecewise constant control
Opis:: The reachability of standard and positive hybrid linear systems described by the general model is addressed. Necessary and sufficient conditions for the reachability of the standard general model are established. Sufficient condition is given for the reachability of positive hybrid system described by the general model. The considerations are illustrated by numerical examples.
Źródło:: Archives of Control Sciences; 2010, 20, 2; 199-207
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Computation of positive realizations of SISO singular hybrid linear systems
Autorzy:: Kaczorek, T.
Sajewski, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/385061.pdf
Data publikacji:: 2009
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: hybrid linear systems
singular
positive
realization
Opis:: The realization problem for 2D positive singular linear hybrid systems is formulated, as well as a method based on the state variable diagram for finding a positive realization of a given improper transfer function is proposed. Sufficient conditions for the existence of a positive realization of a given improper transfer function are established. A procedure for computation of a positive realization is proposed and illustrated by a numerical example.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 2; 8-13
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Exponential stability of impulsive delayed nonlinear hybrid differential systems
Autorzy:: Jia, Qianqian
Xia, Chaoying
Powiązania:: https://bibliotekanauki.pl/articles/140561.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: impulsive delayed nonlinear hybrid systems
global exponential Lyapunov function
Razumikhin technique
Opis:: In recent years, with the rapid development of digital components, digital electronic computers, especially microprocessors, digital controllers have replaced analog controllers on many occasions. The application of digital controller makes the performance analysis of impulsive system more and more important. This paper considers global exponential stability (GES) of impulsive delayed nonlinear hybrid differential systems (IDNHDS).Through the application of the Lyapunov method and the Razumikhin technique, a series of uncomplicated and useful guiding principles have been obtained. The results of a numerical simulation are presented to demonstrate that the method is correct and effective.
Źródło:: Archives of Electrical Engineering; 2019, 68, 3; 553-564
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Hybrid renewable energy
Autorzy:: Jasiūnas, Kęstutis
Bullejos Martín, David
Powiązania:: https://bibliotekanauki.pl/chapters/4200627.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: wind resources
hybrid energy systems
power balance
Opis:: Renewable energy is associated with rapid technology development. Renewable resources are an organic alternative to fossil fuels and so there is a constant tendency to maximize the use of the former and minimize the consumption of the latter. Fossil fuel reserves have been reduced and are constantly running out. The European Union has enough of energy resources to meet only half of its needs. This situation creates economic dependence on energy exporting countries. Another equally important issue is the increasing environmental pollution by burning fossil fuels and induced global climate change. The projected global increase in energy consumption means that there will be proportional increase in emissions and hazardous waste.
Źródło:: Buildings 2020+. Energy sources; 133-144
9788365596727
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: A Novel Continuous Model to Approximate Time Petri Nets: Modelling and Analysis
Autorzy:: Gu, T.
Dong, R.
Powiązania:: https://bibliotekanauki.pl/articles/908478.pdf
Data publikacji:: 2005
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: sieć Petriego
system hybrydowy
system dyskretny
continuous Petri nets
hybrid systems
discrete event systems
Opis:: In order to approximate discrete-event systems in which there exist considerable states and events, David and Alla define a continuous Petri net (CPN). So far, CPNs have been a useful tool not only for approximating discrete-event systems but also for modelling continuous processes. Due to different ways of calculating instantaneous firing speeds of transitions, various continuous Petri net models, such as the CCPN (constant speed CPN), VCPN (variable speed CPN) and the ACPN (asymptotic CPN), have been proposed, where the continuous flow is specified uniquely by maximal firing speeds. However, in applications such as chemical processes there exist situations where the continuous flow must be above some minimal speed or in the range of minimal and maximal speeds. In this paper, from the point of view of approximating a time Petri net, the CPN is augmented with maximal and minimal firing speeds, and a novel continuous model, i.e., the Interval speed CPN (ICPN) is defined. The enabling and firing semantics of transitions of the ICPN are discussed, and the facilitating of continuous transitions is classified into three levels: 0-level, 1-level and 2-level. Some policies to resolve the conflicts and algorithms to undertake the behavioural analysis for the ICPN are developed. In addition, a chemical process example is presented.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2005, 15, 1; 141-150
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: The use of thermionic emission phenomenon as support for renewable energy sources
Autorzy:: Tatarczak, J.
Sikora, J.
Powiązania:: https://bibliotekanauki.pl/articles/105134.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: thermionic emission
renewable energy sources
thermionic energy converters
hybrid systems
electric energy
Opis:: Energy converters using the phenomenon of thermionic emission to generate electricity and their applications related to renewable energy sources (RES) have been presented. Taking into account new technical solutions, hybrid systems combining thermionic energy converters (TEC) with other energy generators, e.g. with PV cells, the Stirling engine, improving the efficiency of the entire electric energy generating system, have been described. Leading technologies related to thermionic energy conversion and TEC hybrid systems powered by solar radiation have been shown in the tables. The dynamic development of TEC technology in recent years, in our opinion, will contribute to the wider interest of research communities to use the thermionic emission phenomenon to generate electricity.
Źródło:: Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2018, 65, 3; 35-42
2300-5130
2300-8903
Pojawia się w:: Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Past, present and future of thermal gasification of biomass and waste
Autorzy:: Hrbek, Jitka
Powiązania:: https://bibliotekanauki.pl/articles/1430041.pdf
Data publikacji:: 2020
Wydawca:: Centrum Badań i Innowacji Pro-Akademia
Tematy:: gasification
syngas
biochemicals
biofuels
CHP
hybrid systems
gazyfikacja
biochemikalia
biopaliwa
systemy hybrydowe
Opis:: The thermal gasification has been used for nearly 200 years. At the beginning coal or peat were used as a feedstock to produce gas for cooking and lighting. Nowadays, the coal gasification is still actual, anyway, in times without fossils the biomass and waste gasification becomes more important. In this paper, the past, present and future of the biomass and waste gasification (BWG) is discussed. The current status of BWG in Austria, Denmark, Germany, Italy, the Netherlands, Sweden and USA is detailed described and the future potential of the technology is outlined.
Źródło:: Acta Innovations; 2020, 35; 5-20
2300-5599
Pojawia się w:: Acta Innovations
Dostawca treści:: Biblioteka Nauki

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