Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "large system" wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-11 z 11
    Tytuł:
    Proposal for Modernisation of Large Block System Buildings (Lbs) - Facades – Lublin University of Technology
    Autorzy:
    Miedviedieva Wright, Alina
    Ostańska, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/2051674.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    industrialized mass housing
    precast concrete
    housing
    modernization of the building
    extension
    façade
    uprzemysłowione budownictwo mieszkaniowe
    modernizacja budynków wielokondygnacyjnych
    prefabrykaty betonowe
    bariery architektoniczne
    poprawa funkcjonalności
    Opis:
    The over 40-years-old housing stock from the industrialized mass housing era is today functionally deficient and does not meet the current needs of residents. In particular, there are numerous architectural barriers, the systems are worn and obsolete, and the number of housing types is very limited. Examples of the modernization of multi-story residential buildings (the article presents those from Russia and Ukraine) confirm that this problem is universal, and a significant improvement of the building’s. Utility value can be achieved through a relatively small modification of the building fabric: precast concrete structures of the buildings prove to be flexible enough to accommodate deep changes. The authors present a concept of modernization of a building erected in a “large block” system, typical for the Polish housing of the 1970s in many cities. The case study concerns a particular building located in Lublin in one of the large housing estates – the concept of its modernization is compatible with the local spatial development plan, the proposed solutions are architecturally coherent and technically feasible.
    Źródło:
    Civil and Environmental Engineering Reports; 2021, 31, 3; 235-250
    2080-5187
    2450-8594
    Pojawia się w:
    Civil and Environmental Engineering Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Decentralized and distributed active fault diagnosis: Multiple model estimation algorithms
    Autorzy:
    Straka, Ondřej
    Punčochář, Ivo
    Powiązania:
    https://bibliotekanauki.pl/articles/330423.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    fault diagnosis
    large scale system
    multiple model
    diagnostyka błędu
    system dużej skali
    model wieloskładnikowy
    Opis:
    The paper focuses on active fault diagnosis (AFD) of large scale systems. The multiple model framework is considered and two architectures are treated: the decentralized and the distributed one. An essential part of the AFD algorithm is state estimation, which must be supplemented with a mechanism to achieve feasible implementation in the multiple model framework. In the paper, the generalized pseudo Bayes and interacting multiple model estimation algorithms are considered. They are reformulated for a given model of a large scale system. Performance of both AFD architectures is analyzed for different combinations of multiple model estimation algorithms using a numerical example.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2020, 30, 2; 239-249
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bringing introspection into BlobSeer: Towards a self-adaptive distributed data management system
    Autorzy:
    Carpen-Amarie, A.
    Costan, A.
    Cai, J.
    Antoniu, G.
    Bougé, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/907796.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    rozproszony system komputerowy
    gospodarka magazynowa
    zarządzanie danymi
    distributed system
    storage management
    large-scale system
    monitoring
    introspection
    Opis:
    Introspection is the prerequisite of autonomic behavior, the first step towards performance improvement and resource usage optimization for large-scale distributed systems. In grid environments, the task of observing the application behavior is assigned to monitoring systems. However, most of them are designed to provide general resource information and do not consider specific information for higher-level services. More precisely, in the context of data-intensive applications, a specific introspection layer is required to collect data about the usage of storage resources, data access patterns, etc. This paper discusses the requirements for an introspection layer in a data management system for large-scale distributed infrastructures. We focus on the case of BlobSeer, a large-scale distributed system for storing massive data. The paper explains why and how to enhance BlobSeer with introspective capabilities and proposes a three-layered architecture relying on the MonALISA monitoring framework. We illustrate the autonomic behavior of BlobSeer with a self-configuration component aiming to provide storage elasticity by dynamically scaling the number of data providers. Then we propose a preliminary approach for enabling self-protection for the BlobSeer system, through a malicious client detection component. The introspective architecture has been evaluated on the Grid'5000 testbed, with experiments that prove the feasibility of generating relevant information related to the state and behavior of the system.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2011, 21, 2; 229-242
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Delay-dependent generalized H2 control for discrete T-S fuzzy large-scale stochastic systems with mixed delays
    Autorzy:
    Li, J.
    Xia, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/930162.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    system stochastyczny
    opóźnienie zależne
    liniowa nierówność macierzowa
    fuzzy large scale stochastic system
    delay-dependent
    generalized H2 control
    infinite distributed delays
    linear matrix inequality
    Opis:
    This paper is concerned with the problem of stochastic stability and generalized H2 control for discrete-time fuzzy largescale stochastic systems with time-varying and infinite-distributed delays. Large-scale interconnected systems consist of a number of discrete-time interconnected Takagi-Sugeno (T-S) subsystems. First, a novel Delay-Dependent Piecewise Lyapunov-Krasovskii Functional (DDPLKF0 is proposed, in which both the upper and the lower bound of delays are considered. Then, two improved delay-dependent stability conditions are established based on this DDPLKF in terms of Linear Matrix Inequalities (LMIs). The merit of the proposed conditions lies in its reduced conservatism, which is achieved by circumventing the utilization of some bounding inequalities for cross products of two vectors and by considering the interactions among the fuzzy subsystems in each subregion. A decentralized generalized H2 state feedback fuzzy controller is designed for each subsystem. It is shown that the mean-square stability for discrete T-S fuzzy large-scale stochastic systems can be established if a DDPLKF can be constructed and a decentralized controller can be obtained by solving a set of LMIs. Finally, an illustrative example is provided to demonstrate the effectiveness of the proposed method.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2011, 21, 4; 585-603
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Algebraic condition for decomposition of large-scale linear dynamic systems
    Autorzy:
    Górecki, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/907869.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    rozkład
    warunek algebraiczny
    system dynamiczny
    decomposition
    algebraic condition
    dynamic system
    Opis:
    The paper concerns the problem of decomposition of a large-scale linear dynamic system into two subsystems. An equivalent problem is to split the characteristic polynomial of the original system into two polynomials of lower degrees. Conditions are found concerning the coefficients of the original polynomial which must be fulfilled for its factorization. It is proved that knowledge of only one of the symmetric functions of those polynomials of lower degrees is sufficient for factorization of the characteristic polynomial of the original large-scale system. An algorithm for finding all the coefficients of the decomposed polynomials and a general condition of factorization are given. Examples of splitting the polynomials of the fifth and sixth degrees are discussed in detail.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2009, 19, 1; 107-111
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    GrNFS: A granular neuro-fuzzy system for regression in large volume data
    Autorzy:
    Siminski, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2055169.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    granular computing
    neuro-fuzzy system
    large volume data
    machine learning
    przetwarzanie ziarniste
    system neurorozmyty
    uczenie maszynowe
    Opis:
    Neuro-fuzzy systems have proved their ability to elaborate intelligible nonlinear models for presented data. However, their bottleneck is the volume of data. They have to read all data in order to produce a model. We apply the granular approach and propose a granular neuro-fuzzy system for large volume data. In our method the data are read by parts and granulated. In the next stage the fuzzy model is produced not on data but on granules. In the paper we introduce a novel type of granules: a fuzzy rule. In our system granules are represented by both regular data items and fuzzy rules. Fuzzy rules are a kind of data summaries. The experiments show that the proposed granular neuro-fuzzy system can produce intelligible models even for large volume datasets. The system outperforms the sampling techniques for large volume datasets.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2021, 31, 3; 445--459
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fuzzy-Logic Fault Isolation in Large-Scale Systems
    Autorzy:
    Kościelny, J. M.
    Sędziak, D.
    Zakroczymski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/908284.pdf
    Data publikacji:
    1999
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    logika rozmyta
    wyodrębnianie uszkodzeń
    system na wielką skalę
    diagnostics
    fuzzy logic
    fault isolation
    large-scale systems
    Opis:
    Application of fuzzy logic in fault isolation is proposed. The introduced methods assume the industrial requirements such as integration of different detection algorithms, system complexity, data and knowledge uncertainties. Algorithms of decreasing the calculation expenditures for diagnosing large-scale systems are also introduced. An example of the application is also shown. The proposed technique is a development of the Dynamic State Tables method.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 1999, 9, 3; 637-652
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of a Java-Based Framework to Parallel Simulation of Large-Scale Systems
    Autorzy:
    Niewiadomska-Szynkiewicz, E.
    Żmuda, M.
    Malinowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/908095.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    informatyka
    parallel computations
    simulation
    large-scale systems
    computer systems
    computer-aided system design
    Opis:
    Large-scale systems, such as computer and telecommunication networks, complex control systems and many others, operate in inherently parallel environments. It follows that there are many opportunities to admit parallelism into both the algorithm of control implementation and simulation of the system operation considered. The paper addresses issues associated with the application of parallel discrete event simulation (PDES). We discuss the PDES terminology and methodology. Particular attention is paid to the software environment CSA&S/PV (Complex Systems Analysis & Simulation-Parallel Version), which provides a framework for simulation experiments performed on parallel computers. CSA&S/PV was applied to investigate several real-life problems. The case studies are presented for both computer and water networks.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2003, 13, 4; 537-547
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Approximation of Large-Scale Dynamical Systems: an Overview
    Autorzy:
    Antoulas, A. C.
    Sorensen, D. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/908058.pdf
    Data publikacji:
    2001
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    aproksymacja
    system dynamiczny
    model reduction
    SVD
    Hankel
    balancing
    Krylov
    Opis:
    In this paper we review the state of affairs in the area of approximation of large-scale systems. We distinguish three basic categories, namely the {SVD}-based, the {Krylov}-based and the {SVD-Krylov}-based approximation methods. The first two were developed independently of each other and have distinct sets of attributes and drawbacks. The third approach seeks to combine the best attributes of the first two.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2001, 11, 5; 1093-1121
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Two implementations of the preconditioned conjugate gradient method on heterogeneous computing grids
    Autorzy:
    Collignon, T. P.
    Van Gijzen, M. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/907778.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    przetwarzanie siatkowe
    system liniowy
    metoda iteracyjna
    gradient sprzężony
    przepływ pęcherzykowy
    grid computing
    large sparse linear systems
    iterative methods
    conjugate gradient method
    Chronopoulos/Gear CG
    GridSolve middleware
    bubbly flows
    Opis:
    Efficient iterative solution of large linear systems on grid computers is a complex problem. The induced heterogeneity and volatile nature of the aggregated computational resources present numerous algorithmic challenges. This paper describes a case study regarding iterative solution of large sparse linear systems on grid computers within the software constraints of the grid middleware GridSolve and within the algorithmic constraints of preconditioned Conjugate Gradient (CG) type methods. We identify the various bottlenecks induced by the middleware and the iterative algorithm. We consider the standard CG algorithm of Hestenes and Stiefel, and as an alternative the Chronopoulos/Gear variant, a formulation that is potentially better suited for grid computing since it requires only one synchronisation point per iteration, instead of two for standard CG. In addition, we improve the computation-to-communication ratio by maximising the work in the preconditioner. In addition to these algorithmic improvements, we also try to minimise the communication overhead within the communication model currently used by the GridSolve middleware. We present numerical experiments on 3D bubbly flow problems using heterogeneous computing hardware that show lower computing times and better speed-up for the Chronopoulos/Gear variant of conjugate gradients. Finally, we suggest extensions to both the iterative algorithm and the middleware for improving granularity.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2010, 20, 1; 109-121
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Porównanie układów technologicznych dużych instalacji kolektorów słonecznych współpracujących z węzłami ciepłowniczymi
    Comparison of the large solar technological systems cooperating with the district heating nodes
    Autorzy:
    Ziembicki, P.
    Bernasiński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/372430.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    węzły ciepłownicze
    energia odnawialna
    kolektory słoneczne
    sprawność systemu
    symulacja komputerowa
    district heating substations
    renewable energy
    solar collectors
    system efficiency
    computer simulation
    Opis:
    W publikacji przedstawiono układy technologiczne dużych instalacji kolektorów słonecznych współpracujących z węzłami ciepłowniczymi dla wielorodzinnych budynków mieszkalnych. Omówiono podstawowe zagadnienia dotyczące wykorzystania symulacji komputerowej do doboru tych instalacji. Przedstawiono wyniki symulacji pracy układów, a także porównano wybrane wskaźniki charakteryzujące te systemy (sprawność, uzysk energii słonecznej oraz temperatury wody w zasobniku i buforze).
    The paper presents the technological systems of large solar installations cooperating with district heating substations, which is dedicated for multifamily buildings. One of the topics mentioned in the paper is connected with using of computer simulation for the selection of these installations. In the article authors described the results of simulation and compared selected indicators characterizing these systems (efficiency, hot water solar fraction and water temperature in the tank and buffer).
    Źródło:
    Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2015, 157 (37); 94-104
    1895-7323
    Pojawia się w:
    Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies