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Wyszukujesz frazę "function optimization" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Optimization Criteria in End-of-Life Products Reverse Logistics Network Organisation
    Autorzy:
    Merkisz-Guranowska, Agnieszka
    Maciejewski, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/504618.pdf
    Data publikacji:
    2013
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    reverse logistics
    optimization
    objective function
    Opis:
    The paper discusses the problem of selection of objective function in modelling of the reverse logistics network entity location. A growing ecological awareness of societies as well as implementing concepts of manufacturer responsibility for their products result in a creation of systems of collecting and treatment of end-of-life products. Rather than being a random process a reverse logistics network should be designed as an effect of informed decisions taking into account all aspects and points of view of the stakeholders. A key issue in network design related to the use of decision support tools based on mathematical optimization is the appropriate selection of the objective function for evaluation of the potential solutions.
    Źródło:
    Logistics and Transport; 2013, 17, 1; 25-32
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Setpoint weighted PID controller tuning for unstable system using heuristic algorithm
    Autorzy:
    Rajinikanth, V.
    Latha, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/229344.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    setpoint weighted PID
    unstable system
    particle swarm optimization (PSO)
    bacterial foraging optimization
    objective function
    Opis:
    Most of the real time chemical process loops are unstable in nature and designing a suitable controller for such systems are difficult than open loop stable processes. In this work, an attempt is made with a two degree of freedom setpoint weighted PID controller tuning procedure for a class of unstable systems using the recent heuristic algorithms such as Particle Swarm Optimization and Bacterial Foraging Optimization. The problem considered in this study is to aptly tune the controller in order to enhance the overall closed loop performance. A novel objective function proposed in this study is used to monitor the heuristic algorithms in order to get the optimal controller parameters like Kp, Ki, Kd, and alpha with minimized iteration number. The proposed method is validated with a simulation study and this helps to accomplish enhanced system performance such as smooth reference tracking, satisfactory disturbance rejection, and error minimization for a class of unstable systems.
    Źródło:
    Archives of Control Sciences; 2012, 22, 4; 481-505
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of the main characteristics of the small waterplane area twin hull ships at the initial stage of design
    Autorzy:
    Bondarenko, O. V.
    Boiko, A. P.
    Seropyan, I. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/258950.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    small waterplane area twin hull ship
    mathematical model
    constraints
    objective function
    optimization
    Opis:
    The basic selecting peculiarities of the optimal project characteristics of the small waterplane area twin hull ships compared to conventional ships are considered. The description of the mathematical model and the ship operating model is given. The choice of the optimization method is justified.
    Źródło:
    Polish Maritime Research; 2013, 1; 11-22
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A comparison of objective functions of optimization-based smoothing algorithm for tetrahedral mesh improvement
    Autorzy:
    Dai, C.
    Liu, H.-L.
    Dong, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/279637.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
    Tematy:
    objective function
    mesh quality metric
    optimization-based smoothing
    mesh quality improvement
    mesh generation
    Opis:
    The objective function based on mesh quality metric has a major impact on smoothing unstructured tetrahedral meshes. The ability of seven mesh quality metrics to distinguish four kinds of poor-quality elements and their effects on the change of element shape are analyzed in detail. Then, four better mesh quality metrics are chosen to construct objective functions. In addition, the rational determination of searching direction and the optimal step size in the optimization algorithm of solving the objective function are proposed. Finally, comparisons with the other three objective functions are made according to different number of elements, iteration limit, and the desired accuracy in the improved mesh. It is found that with the increase of the number of elements, the time consumed during optimization increases, but the changes of the worst quality element are different. The number of iterations has little effect on the mesh quality and the time cost. The increasing of the desired degree of accuracy will improve the mesh quality and cost more time. Furthermore, the approach using objective function is compared with Freitag’s common approach. It is clearly shown that it performs better than the existing approach.
    Źródło:
    Journal of Theoretical and Applied Mechanics; 2014, 52, 1; 151-163
    1429-2955
    Pojawia się w:
    Journal of Theoretical and Applied Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contemporary challenges in the Asset Liability Management
    Autorzy:
    Lubinska, Beata
    Powiązania:
    https://bibliotekanauki.pl/articles/583533.pdf
    Data publikacji:
    2018
    Wydawca:
    Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
    Tematy:
    optimization model
    interest rate risk in the banking book
    liquidity risk
    objective function
    constraints functions
    Opis:
    The role of the active management of the banking book in the banking industry is constantly growing. The efficient and productive use of a bank’s resources subject to consolidated risk and return appetite remains of upmost importance for banks of all sizes. Therefore, the use of optimization techniques to manage the banking book of a financial institution is becoming an imperative to remain profitable. This article states that application of the optimization techniques can provide useful information to understand the target structure for the banking book in terms of its composition of liabilities and is an important tool to decrease the overall cost of funding. Moreover, the application of the optimization techniques in this article is seen as the integration of the exposure to the financial risks into one approach.
    Źródło:
    Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu; 2018, 519; 135-145
    1899-3192
    Pojawia się w:
    Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of Approaches for Project Costs Minimization with Use of Dual Problems
    Autorzy:
    Chernov, S.
    Titov, S.
    Chernova, L.
    Kunanets, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/410624.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Oddział w Lublinie PAN
    Tematy:
    linear optimization
    primal problem
    dual problem
    duality
    objective function
    constraint system
    pairs of dual problems
    Opis:
    For determining ways of company development, ensuring the growth of profit in manufacture and sales of certain products, it has been proposed to use an algorithm of constructing a problem being inverse to primal-dual one, for minimization of the project costs. The primal and the inverse problems contribute to improving the efficiency of calculation when determining approaches for minimization of costs. This pair of problems is mutually conjugate. The proposed rigorous approach to obtaining the algorithm of constructing a dual problem is based on the following statement: a problem being inverse to a dual one is a primal (original) problem. The authors have proposed and rigorously proven the algorithm of a general approach to the construction of conjugate problem pairs. Formalization of the algorithm developed allows obtaining easily correct pairs of known dual problems. This permitted proposing and proving the truth of the algorithm of constructing a dual problem for the arbitrary form of a primal problem representation.
    Źródło:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2019, 8, 2; 61-68
    2084-5715
    Pojawia się w:
    ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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