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    Wyświetlanie 1-8 z 8
    Tytuł:
    Optimization of sugar dispatching process
    Autorzy:
    Pytlak, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/409091.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    job shop scheduling
    optimization in logistics
    CLP in scheduling
    constraint programming
    Źródło:
    Research in Logistics & Production; 2014, 4, 2; 105-118
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optymalizacja procesu wysyłki cukru
    Optimization of sugar dispatching proces
    Autorzy:
    Pytlak, R.
    Stecz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1378130.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Wydawnictwo Ekonomiczne
    Tematy:
    systemy gniazdowe
    optymalizacja procesów logistycznych
    CLP w harmonogramowaniu
    programowanie z ograniczeniami
    job shop scheduling
    optimization in logistics
    CLP in scheduling
    constraint programming
    Opis:
    We consider the sugar dispatching process at a sugar mill. The main goal of our work was to check an efficiency of the logistics system in the mill, find and correct the bottlenecks. Some methods for logistics processes optimization are presented. We base on the heuristics and CLP techniques for solving the scheduling problems. Some additional remarks about possibility of using the optimization methods in scheduling and logistics optimizations are presented too.
    Źródło:
    Gospodarka Materiałowa i Logistyka; 2014, 2; 21-30
    1231-2037
    Pojawia się w:
    Gospodarka Materiałowa i Logistyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modele dla potrzeb rozwiązywania zadań optymalizacji taryf
    Models for solving the tariff optimization problem
    Autorzy:
    Pytlak, R.
    Stecz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1378189.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Wydawnictwo Ekonomiczne
    Tematy:
    optymalizacja taryf
    programowanie z ograniczeniami
    minimalizacja kosztu
    tariff optimization
    constraint logic programming
    cost minimization
    Opis:
    We present the methods of telecommunication tariff optimization from a point of client’s view. A client which wants to minimize his monthly fees tries to choose a proper tariff model. In case of large companies these models are more complicated and the optimization models should be used. We describe a simple MIP models and their modifications solved with CLP solvers. All the examples were solved with ILOG and ECLiPSe MIP and CLP solvers.
    Źródło:
    Gospodarka Materiałowa i Logistyka; 2014, 7; 24-32
    1231-2037
    Pojawia się w:
    Gospodarka Materiałowa i Logistyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Launching New IT Product Into the Market
    Autorzy:
    Stecz, W.
    Pytlak, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/409182.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    system dynamics model
    launching a product
    product cost optimization
    Opis:
    Bringing a new IT product onto the market possess a high business risk due to two main factors: lifetime of an IT product is usually short; IT market is very competitive one. Product success depends on many mutually linked factors and very often the relations among them are difficult to grasp by business analysts. In the paper we present the System Dynamics model describing some important factors which should be analyzed before bringing a new IT product onto the market. We assume that an IT product is maintained within an outsourcing model by other company which uses a cloud computing for that purpose. Our study embraces analysis of the pricing policy of product and that takes into account opponents in the market. We also consider possible modifications of IT product configurations, outsourcing scope and the modification of marketing policy depending on actual IT product parameters. While building the model presented in the paper, contrary to other models in literature, we have used only parameters which can be estimated precisely. By sticking to this attitude we have obtained the model which is more useful than other models presented in the literature on the subject. We present simulation results of the dynamic model for different simulation scenarios resulting from different policies of bringing a new product onto the market.
    Źródło:
    Research in Logistics & Production; 2016, 6, 1; 89-102
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Models For Solving The Tariff Optimization Problem
    Autorzy:
    Pytlak, R.
    Stecz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/409510.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    sustainability
    Dismantling
    materials management
    Opis:
    We present the methods of telecommunication tariff optimization from a point of client’s view. A client which wants to minimize his monthly fees tries to choose a proper tariff model. In case of large companies these models are more complicated and the optimization models should be used. We describe a simple MIP models and their modifications solved with CLP solvers. All the examples were solved with ILOG and ECLiPSe MIP and CLP solvers.
    Źródło:
    Research in Logistics & Production; 2014, 4, 2; 119-133
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Logistics of Sanitary Teams Activities
    Autorzy:
    Pytlak, R.
    Suski, D.
    Zawadzki, T.
    Stecz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/409391.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    Epidemic models
    Forrester’s models of sanitary activities
    Model calibration
    Optimal management of sanitary activities
    Opis:
    We describe the information system that has been built for the support sanitary teams. The system is aimed at supporting analytical work which must be carried out when there is a risk of epidemic outbreak. It is meant to provide tools for predicting the size of an epidemic on the basis of the actual data collected during its course. Since sanitary teams try to control the size of the epidemics such a tool must model also sanitary teams activities. As a result a model for the prediction can be quite complicated in terms of the number of equations it contains. Furthermore, since a model is based on several parameters there must be a tool for finding these parameters on the basis on the actual data corresponding to the epidemic evolution. The paper describes the proposition of such a system. It presents, in some details, the main components of the system. In particular, the environment for building complex models (containing not only the epidemic model but also activities of sanitary teams trying to inhibit the epidemic) is discussed. Then, the module for a model calibration is presented. The module is a part of server for solving optimal control problems and can be accessed via Internet. Finally, we show how optimal control problems can be constructed with the aim of the efficient epidemic management. Some optimal control problems related to that issue are discussed and numerical results of its solution are presented.
    Źródło:
    Research in Logistics & Production; 2015, 5, 4; 393-406
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    System wspomagania pracy służb sanitarnych
    Support System of sanitary teams work
    Autorzy:
    Pytlak, R.
    Zawadzki, T.
    Suski, D.
    Stecz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1378308.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Wydawnictwo Ekonomiczne
    Tematy:
    modele epidemiczne
    modele Forrestera aktywności służb sanitarnych
    kalibracja modeli
    epidemic models
    Forrester’s models of sanitary activities
    model calibration
    Opis:
    We describe the information system that has been built for the support sanitary teams. The system is aimed at supporting analytical work which must be carried out when there is a risk of epidemic outbreak. It is meant to provide tools for predicting the size of an epidemic on the basis of the actual data collected during its course. Since sanitary teams try to control the size of the epidemics such a tool must model also sanitary teams activities. As a result a model for the prediction can be quite complicated in terms of the number of equations it contains. Furthermore, since a model is based on several parameters there must be a tool for finding these parameters on the basis on the actual data corresponding to the epidemic evolution. The paper describes the proposition of such a system. It presents, in some details, the main components of the system. In particular, the environment for building complex models (containing not only the epidemic model but also activities of sanitary teams trying to inhibit the epidemic) is discussed. Then, the module for a model calibration is presented. The module is a part of server for solving optimal control problems and can be accessed via Internet. Finally, we show how optimal control problems can be constructed with the aim of the efficient epidemic management. Some optimal control problems related to that issue are discussed and numerical results of its solution are presented.
    Źródło:
    Gospodarka Materiałowa i Logistyka; 2014, 11; 19-28
    1231-2037
    Pojawia się w:
    Gospodarka Materiałowa i Logistyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radiation methods in decision support system for food safety
    Autorzy:
    Migdal, W.
    Gryczka, U.
    Bertrandt, J.
    Nowicki, T.
    Pytlak, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/146526.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    decision support system
    microbiological food safety
    radiation methods
    Opis:
    Mathematical model is the basis for computer decision support system (DSS) connected with food security strategy, in which food irradiation is one of the methods used for elimination of substance with pathogens. Such system can support an organisation of many different activities in the area of food safety. It can be designed for a specifi c region, country, etc., and is addressed to State Sanitary Inspection offi ces. The paper demonstrates the capabilities of the system in modeling activities of sanitary inspection teams aimed at pathogen elimination with the use of electron beam irradiation in procedures of utilisation of animal originated food, related packaging, or other microbiologically contaminated materials. It describes new application of both computer supported decision systems and radiation processing. The elaborated mathematical models show human activities in the process of microbiological contamination elimination.
    Źródło:
    Nukleonika; 2014, 59, 4; 161-168
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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