Search results for: DISTRIBUTED PARAMETER SYSTEMS

• Hybrid, Approximate Models of Distributed-Parameter Systems

  Publication

  • C. Orlikowski
  • R. Hein

  - Year 2010

  The paper introduces the method of distributed-parameter systems modelling. It enables to obtain low order modal model of the system that experiences Coriolis acceleration component and gyroscopic effect. In such cases, corresponding system equations are non-self-adjoined. To solve this problem modal reduced model is built up for the system without Coriolis acceleration or gyroscopic effect terms. These phenomena are next included...

• Modelling of Mechatronic Systems with Distributed Parameter Components

  Publication

  • C. Orlikowski
  • R. Hein

  - Year 2010

  The paper presents an uniform, port-based approach to modelling of both lumped and distributed parameter systems. Port-based model of distributed system has been defined by application of the bond graph methodology and the distributed transfer function method (DTFM). The proposed method of modelling enables to formulate input data for computer analysis by application of the DTFM. The computational package for the analysis of complex...

• Port-Based Modelling of Distributed-Lumped Parameter Systems

  Publication

  • C. Orlikowski
  • R. Hein

  - Solid State Phenomena - Year 2010

  There in the paper is presented an uniform, port-based approach to modelling of both lumped and distributed parameter systems. Port-based model of the distributed system has been defined by application of bond graph methodology and distributed transfer function method (DTFM). The approach proposed combines versatility of port-based modelling and accuracy of distributed transfer function method. The concise representation of lumped-distributed...

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• Modelling method for a class of distributed-lumped parameter systems

  Publication

  • R. Hein
  • C. Orlikowski

  - Year 2011

  The paper presents an alternative approach for modelling and order reduction of continuous system. The proposed methodology combines application of two methods: the modal decomposition method and the rigid finite element method. The given continuous structure is divided into 1D continuous substructures. For each 1D substructure modal decomposition and reduction procedure is applied. Interactions between substructures are described...

• Computational algorithm for the analysis of mechatronic systems with distributed parameter elements

  Publication

  • C. Orlikowski
  • R. Hein
  • R. Cyran

  - Year 2010

  The paper presents a systematic computational package for analysis of complex systems composed of multiple lumped and distributed parameter subsystems. The algorithm is based on the transfer function method (DTFM). With this algorithm, a bond graph technique for the modelling is developed to simplify computations. Analysis of different systems requires only changing the inputs data in the form of the bond graph diagram

• Modelling of distributed-lumped parameter systems by application of modal bond graphs.

  Publication

  • C. Orlikowski
  • S. Sawiak

  - Year 2004

  Zastosowano metodę transmitancji układów o parametrach rozłożonych oraz dekompozycję modalną do modelowania wybranych układów dynamicznych. Zaproponowane podejście pozwala otrzymać dokładne modele niskiego rzędu w postaci grafów wiązań.

• The consideration to the dynamic systems parameter identification

  Publication

  • E. Mieloszyk
  • R. D. Gańko

  - International Journal of Modelling, Identification and Control - Year 2013

  In this paper, a concept for continuous-time dynamic systems parameter identification using modulating function approach is presented. It refers to linear as well as selected non-linear systems. It shows the possibility of direct application without converting differential equation. In particular cases direct application can decrease the amount of computation in non-linear system identification, which generally requires Fourier...

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• Optimization issues in distributed computing systems design

  Publication

  • K. Walkowiak
  • J. Rak

  - Year 2014

  In recent years, we observe a growing interest focused on distributed computing systems. Both industry and academia require increasing computational power to process and analyze large amount of data, including significant areas like analysis of medical data, earthquake, or weather forecast. Since distributed computing systems – similar to computer networks – are vulnerable to failures, survivability mechanisms are indispensable...

• The architecture of distributed systems driven by autonomic patterns

  Publication

  • M. Wolski
  • C. Mazurek
  • P. Spychała
  • A. Sumowski

  - Year 2006

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• Local information as a resource in distributed quantum systems.

  Publication

  • M. Horodecki
  • K. Horodecki
  • P. Horodecki
  • R. Horodecki
  • J. Oppenheim
  • A. Sen(de)
  • U. Sen

  - PHYSICAL REVIEW LETTERS - Year 2003

  Zaproponowano nowy paradygmat dla kwantowego paradygmatu odległych laboratoriów w których informacja jest zasobem. W tym schemacie obserwatorzy dokonują destylacji informacji lokalnych stanów czystych.

• Hunting for bindings in distributed object-oriented systems.

  Publication

  • M. Sławińska

  - Year 2004

  Artykuł dotyczy problemu identyfikacji grupy obiektów, które pozostają z danym obiektem w pewnej relacji. Problem ten jest szczególnie istotny w sytuacji, gdy należy wyodrębnić grupę obiektów w celu np. testowania czy monitorowania. W arykule zdefiniowano statyczną i dynamiczną relację powiązania pomiędzy obiektami w rozproszonym systemie obiektowym. Zaproponowano również architekturę umożliwiającą wyszukiwanie tych powiązań. Przedstawiono...

• Stepwise development of distributed interactive simulation systems.

  Publication

  • T. Orłowski
  • B. Wiszniewski

  - Year 2004

  Metoda krokowa pozwala na budowanie wydajnych i skalowalnych systemów symu-lacji rozproszonej obiektów rzeczywistych jak np. pojazdy terenowe, samocho-dy i śmigłowce. Dzięki uwzględnianiu parametrów operacyjnych oraz parametrównarzędzi wizualizacyjnych możliwe jest znaczne ograniczenie liczby komunika-tów przesyłanych między obiektami.

• Parameter and delay estimation of linear continuous-time systems

  Publication

  • J. Kozłowski
  • Z. Kowalczuk

  - Year 2013

  In this paper the problem of on-line identification of non-stationary delay systems is considered. Dynamics of supervised industrial processes is described by ordinary differential equations. Discrete-time mechanization of their continuous-time representations is based on dedicated finite-horizon integrating filters. Least-squares and instrumental variable procedures implemented in recursive forms are applied for simultaneous identification...

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• Parameter and delay estimation of linear continuous-time systems

  Publication

  • J. Kozłowski
  • Z. Kowalczuk

  - International Journal of Applied Mathematics and Computer Science - Year 2015

  In this paper the problem of on-line identification of non-stationary delay systems is considered. Dynamics of supervised industrial processes is usually described by ordinary differential equations. Discrete-time mechanization of their continuous-time representations is based on dedicated finite-horizon integrating filters. Least-squares and instrumental variable procedures implemented in recursive forms are applied for simultaneous...

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• Tracing of dynamic objects in distributed interactive simulation systems

  Publication

  • T. Orłowski
  • B. Wiszniewski

  - Year 2003

  Distributed interactive simulation systems require integration of several areas of computer science and applied mathematics to enable each individual simulation object to visualize effectively dynamic states of other objects. Objects are unpredictable,i.e., controlled by their local operators, and are remote, i.e., must rely on some transmission media to visualize dynamic scene from their local perspectives. The paper...

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• Simulation of Parallel Applications on Large-scale Distributed Systems

  Publication

  • P. Rościszewski
  • P. Sidorczak

  - Year 2014

  This chapter has a form of a review article in the field of simulating High-Performance Computing systems. We justify the need for a new versatile simulator considering heterogeneity, energy efficiency and reliability of HPC systems. We sketch the problems that need to be solved by such simulator and rationalize using discrete-event simulation for this purpose. Based on a review of existing discrete-event HPC simulation solutions...

• Highly parallel distributed computing systems with optical interconnections

  Publication

  • J. Just
  • R. Romaniuk
  • R. S. Romaniuk

  - Microprocessing and Microprogramming - Year 1989

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• Application of the numerical-analytic method for systems of differential equations with parameter

  Publication

  • T. Jankowski

  - Ukrainian Mathematical Journal - Year 2002

  The numerical-analytic method is applied to systems of differential equations with parameter under the assumption that the corresponding functions satisfy the Lipschitz conditions in matrix notation. We also obtain several existence results for problems with deviations of an argument

• On–line Parameter and Delay Estimation of Continuous–Time Dynamic Systems

  Publication

  • Z. Kowalczuk
  • J. Kozłowski

  - International Journal of Applied Mathematics and Computer Science - Year 2015

  The problem of on-line identification of non-stationary delay systems is considered. The dynamics of supervised industrial processes are usually modeled by ordinary differential equations. Discrete-time mechanizations of continuous-time process models are implemented with the use of dedicated finite-horizon integrating filters. Least-squares and instrumental variable procedures mechanized in recursive forms are applied for simultaneous...

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• International Journal of Parallel and Distributed Systems

  Journals

  ISSN: 2277-1638

• International Journal of Distributed Systems and Technologies

  Journals

  ISSN: 1947-3532 , eISSN: 1947-3540

• IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS

  Journals

  ISSN: 1045-9219 , eISSN: 1558-2183

• Integration of cloud-based services into distributed workflow systems: challenges and solutions

  Publication

  • P. Czarnul

  - Scalable Computing: Practice and Experience - Year 2012

  The paper introduces the challenges in modern workflow management in distributed environments spanning multiplecluster, grid and cloud systems. Recent developments in cloud computing infrastructures are presented and are referring howclouds can be incorporated into distributed workflow management, aside from local and grid systems considered so far. Severalchallenges concerning workflow definition, optimisation and execution are...

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• Multi-criterion decision making in distributed systems by quantum evolutionary algorithms

  Publication

  • J. Balicki
  • H. Balicka
  • J. Masiejczyk
  • A. Zacniewski

  - Year 2010

  Decision making by the AQMEA (Adaptive Quantum-based Multi-criterion Evolutionary Algorithm) has been considered for distributed computer systems. AQMEA has been extended by a chromosome representation with the registry of the smallest units of quantum information. Evolutionary computing with Q-bit chromosomes has been proofed to characterize by the enhanced population diversity than other representations, since individuals represent...

• 1+1 Protection of Overlay Distributed Computing Systems: Modeling and Optimization

  Publication

  • K. Walkowiak
  • J. Rak

  - Year 2012

  W niniejszym artykule przedstawiono autorską koncepcję ochrony transmisji od krańca do krańca (ang. 1+1 protection) dla systemów przetwarzania rozproszonego (ang. distributed computing systems). Artykuł prezentuje nowatorskie rozwiązanie dedykowane systemom typu ''overlay'', w których system przetwarzania rozproszonego stanowi warstwę najwyższą w warstwowej architekturze sieci, korzystającą z usług warstwy sieci transportowej....

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• Centralized and Distributed Structures of Intelligent Systems for Aided Design of Ship Automation

  Publication

  • A. Kopczyński
  • R. Arendt
  • P. Spychalski

  - Advances in Intelligent Systems and Computing - Year 2017

  A design process and accepted solutions made during this process, often base on non-formalized knowledge, obtained from designer (expert) intuition and practice. There are no formalized rules assuring the correctness of design solutions. The analysis of design process of ship automation, including ship power system, shows that this process can be supported by application of the artificial intelligence elements. The article presents...

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• application of linear quadratic regulator (lqr) for nonlinear systems based on the parameter sensitivity

  Publication

  • M. H. Ghaemi

  - Year 2007

  Metoda LQR jest znaną metodą optymalizacyjną dla liniowych układów sterowania. W referacie przedstawiono oryginalny algorytm dotyczący zastosowania tej metody dla nieliniowych układów sterowania przy wykorzystaniu analizy wrażliwości układu. Algorytm ten poddany jest weryfikacji na przykładzie układu sterowania napędu statku.

• Distributed Detection of Selected Features in Data Streams Using Grid-class Systems

  Publication

  • M. Matuszek

  - Year 2012

  This chapter describes basic methodology of distributed digital signal processing. A choice of distributed methods of detection of selected features in data streams using grid-class systems is discussed. Problems related to distribution of data for processing are addressed. A mitigating method for data distribution and result merging is described.

• Fast Algorithms for Identification of Time-Varying Systems with Both Smooth and Discontinuous Parameter Changes

  Publication

  • M. Niedźwiecki
  • A. Gańcza

  - Year 2023

  The problem of noncausal identification of a time-varying linear system subject to both smooth and occasional jump-type changes is considered and solved using the preestimation technique combined with the basis function approach to modeling the variability of system parameters. The proposed estimation algorithms yield very good parameter tracking results and are computationally attractive.

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• Security aspects in verification of the safety integrity level of distributed control and protection systems

  Publication

  • K. Kosmowski
  • T. Barnert
  • M. Śliwiński

  - Journal of KONBiN - Year 2008

  Przedstawiono najważniejsze zagadnienia zwišzane z weryfikacjš poziomu nienaruszalnoci bezpieczeństwa SIL rozproszonych systemów sterowania i zabezpieczeń z uwzględnieniem aspektów ochrony informacji. Przedstawiono ilociowš metodę weryfikacji poziomu SIL z wykorzystaniem wskaników różnicowych oraz dwuparametrowš funkcję kryterialnš łaczšcš wymagania SIL oraz EAL (poziom uzasadnionego zaufania dla ochrony informacji).

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• Gas Turbine Cycle with External Combustion Chamber for Prosumer and Distributed Energy Systems

  Publication

  • D. Mikielewicz
  • K. Kosowski
  • K. Tucki
  • M. Piwowarski
  • R. Stępień
  • O. Orynycz
  • W. Włodarski

  - ENERGIES - Year 2019

  The use of various biofuels, usually of relatively small Lower Heating Value (LHV), affects the gas turbine efficiency. The present paper shows that applying the proposed air by-pass system of the combustor at the turbine exit causes tan increase of efficiency of the turbine cycle increased by a few points. This solution appears very promising also in combined gas/steam turbine power plants. The comparison of a turbine set operating...

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• International Journal of Parallel Emergent and Distributed Systems

  Journals

  ISSN: 1744-5760 , eISSN: 1744-5779

• International Journal of Communication Networks and Distributed Systems

  Journals

  ISSN: 1754-3916 , eISSN: 1754-3924

• New approach to noncausal identification of nonstationary stochastic systems subject to both smooth and abrupt parameter changes

  Publication

  • M. Niedźwiecki
  • S. Gackowski

  - Year 2012

  In this paper we consider the problem of finiteintervalparameter smoothing for a class of nonstationary linearstochastic systems subject to both smooth and abrupt parameterchanges. The proposed parallel estimation scheme combines theestimates yielded by several exponentially weighted basis functionalgorithms. The resulting smoother automatically adjustsits smoothing bandwidth to the type and rate of nonstationarityof the identified...

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• Parameter of nonlinearity B/A of three-component systems with separate volumes of liquid, its vapor and a neutral gas

  Publication

  • A. Perelomova

  - Year 2005

  Otrzymane zostało wyrażenie dla zaburzenia entropii substancji o trzech komponentach jako funkcja zaburzeń jej ciśnienia i gęstości. Na podstawie wzoru prędkość i parametru nieliniowosci fali akustycznej zostały wyliczone jako funkcje i ciśnienia i koncentracji pary i powietrza. Rezultaty są przedstawione w postaci wykresów.

• Qualitative evaluation of distributed clinical systems supporting research teams working on large-scale data

  Publication

  • T. Dziubich

  - TASK Quarterly - Year 2017

  Inthispaper,fivecontemporaryscalablesystemstosupportmedicalresearchteams are presented. Their functionalities extend from heterogeneous unstructured data acquisition through large-scale data storing, to on-the-fly analyzing by using robust methods. Such kinds of systems can be useful in the development of new medical procedures and recommendation rules for decision support systems. A short description of each of them is provided....

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• Streaming Real-time Data in Distributed Dispatcher and Teleinformation Systems for Visualization of Multimedia Data of the Border Guard

  Publication

  • M. Blok
  • B. Czaplewski
  • S. Kaczmarek
  • J. A. Litka
  • M. Narloch
  • M. Sac

  - TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation - Year 2018

  Surveillance of the sea borders is a very important task for the Border Guard. Monitoring of country maritime border is an important task of the Border Guard. This task can be facilitated with the use of the technology enabling gathering information from distributed sources and its supervision and visualization. This task can be accomplished using a technology that allows to collect information from distributed sensors of different...

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• New Approach to Noncasual Identification of Nonstationary Stochastic FIR Systems Subject to Both Smooth and Abrupt Parameter Changes

  Publication

  • M. Niedźwiecki
  • S. Gackowski

  - IEEE TRANSACTIONS ON AUTOMATIC CONTROL - Year 2013

  In this technical note, we consider the problem of finite-interval parameter smoothing for a class of nonstationary linear stochastic systems subject to both smooth and abrupt parameter changes. The proposed parallel estimation scheme combines the estimates yielded by several exponentially weighted basis function algorithms. The resulting smoother automatically adjusts its smoothing bandwidth to the type and rate of nonstationarity...

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• Weighted least squares parameter estimation for model predictive control of integrated wastewater systems at medium time scale.

  Publication

  • K. Konarczak
  • T. A. Rutkowski
  • M. Brdyś

  - Year 2004

  W artykule przedstawione zostało sformułowanie i implementacja algorytmu ważonej sumy najmniejszych kwadratów na przesuwnym oknie pomiarowym dla celów estymacji parametrów modelu typu szara skrzynka. Model typu szara skrzynka dynamiki reaktora biologicznego jest wykorzystywany przez moduł sterowania predykcyjnego sterujący zintegrowanym systemem ściekowym w średniej skali czasu. Algorytm estymacji parametrów był walidowany na symulatorze...

• Application of the distributed transfer function method and the rigid finite element method for modelling of 2-D and 3-D systems

  Publication

  • R. Hein
  • C. Orlikowski

  - Modelowanie Inżynierskie - Year 2010

  In the paper application of the Distributed Transfer Function Method and the Rigid Finite Element Method for modelling of 2-D and 3-D systems is presented. In this method an elastic body is divided into 1-D distributed parameter elements (strips or prisms). The whole body (divided into strips or prism) is described by a set of coupled partial differential equations. Solving this equations in the state space form it is possible...

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• Bounding approach to parameter estimation without prior knowledge on modeling error and application to quality modeling in drinking water distribution systems

  Publication

  • K. Duzinkiewicz

  - Archives of Control Sciences - Year 2006

  W artykule rozważana jest estymacja parametrów modelu autoregresji z ruchoma średnią i sygnałem wejściowym (ARMAX) z wykorzystaniem przedziałowego modelu błędu. Zakłada się, że granice błędu struktury modelu są nieznane, bądź znane, ale bardzo konserwatywne. Dla zmniejszenia tego konserwatyzmu proponowane jest idea modeli punktowo-parametrycznych, w której występują zbiory parametrów i błędu modelu odpowiadające wszystkim wejściom....

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• Set-Bounded joined parameter and state estimation for model predictive control of integrated wastewater treatment plant systems at medium time scale.

  Publication

  • T. A. Rutkowski
  • M. Brdyś
  • K. Konarczak
  • T. Gmiński

  - Year 2004

  W artykule opisano moduł łącznej estymacji w postaci zbiorów ograniczonych (ang. set-bounded) parametrów i stanu systemu dla potrzeb sterowania predykcyjnego zintegrowanym systemem ściekowym w średniej skali czasu. Jest to jeden ze składowych elementów Inteligentnej Hierarchicznej Struktury Sterowania opracowanej w celu pokonania następujących problemów, które występują w kontrolowanym systemie: różne skale czasowe procesów, silnie...

• Pączkowanie - metoda rozwoju interoperacyjnych komponentów dla systemów rozproszonych = Budding – the software development method of interoperable components for distributed systems

  Publication

  • H. Krawczyk
  • P. Lubomski

  - Year 2010

  Przedstawiono 2 współczesne metody wytwarzania oprogramowania: iteracyjno-przyrostową oraz techniki zwinne, ich zalety i wady w kontekście budowy interoperacyjnych platform i środowisk rozproszonych. Zaprezentowano metodę rozwoju oprogramowania przez pączkowanie, jej założenia, zalety i wady. Przedstawiono technologie, na bazie których działa metodologia wytwarzania oprogramowania przez pączkowanie: Software Product Line, Enterprise...

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• O wyszukiwaniu niepoprawnych pomiarów w systemach DCS obiektów energetycznych = On search for incorrect measurement results in distributed control systems (DCS) of power objects

  Publication

  • J. Głuch

  - Year 2005

  Przedyskutowano problem rozpoznawania degradacji mierników pomiarowych w systemach DCS dużych obiektów energetycznych, przy równoczesnym występowaniu degradacji eksploatacyjnej urządzeń składowych tych obiektów. Zastosowano sieć neuronową (SNN) o skokowych funkcjach przejścia. Zastosowana SNN wykazała wysoką jakość. Sprawdzono możliwości rozpoznawania obu typów degradacji występującej w zastosowaniu do tzw. degradacji dwukrotnych.

• International Journal of Distributed and Parallel Systems

  Journals

  ISSN: 2229-3957

• Telemetric Distributed Systems - 2022

  e-Learning Courses

  • M. Gnyba

• Telemetric Distributed Systems - 2023

  e-Learning Courses

  • M. Gnyba

• Parallel and Distributed Information Systems

  Conferences

• Mobility in Databases and Distributed Systems

  Conferences

• Symposium on Reliable Distributed Systems

  Conferences