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    Wyświetlanie 1-5 z 5
    Tytuł:
    The performance evaluation of the spare parts management: case study
    Autorzy:
    Oumaima, Bounou
    El Barkany, Abdellah
    El Biyaali, Ahmed
    Powiązania:
    https://bibliotekanauki.pl/articles/407193.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    spare parts
    inventory management
    shortage
    obsolescence
    stochastic petri networks
    performance evaluation
    supply policies
    Opis:
    The supply chain of spare parts is the intersection between the supply chain, the after-sales and the maintenance services. Some authors have tried to define improvement paths in terms of models to satisfy the performance criteria. In addition, other authors are directed towards the integration of risk management in the demand forecasting and the stock management (performance evaluation) through probabilistic models. Among these models, the probabilistic graphical models are the most used, for example, Bayesian networks and petri nets. Performance evaluation is done through performance indicators. To measure the appreciation of the supply of the spare parts stock, this paper focuses on the performance evaluation of the system by petri nets. This evaluation will be done through an analytical study. The purpose of this study is to evaluate and analyze the performance of the system by proposed indicators. First, we present a literature review on Petri nets which is the essential tool in our modeling. Secondly, we present in the third section the analytical study of the model based on bath deterministic and stochastic petri networks. Finally, we present an analysis of the proposed model compared to the existing ones.
    Źródło:
    Management and Production Engineering Review; 2019, 10, 2; 37-49
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamic setting of shipping points in logistics systems with multiple heterogeneous warehouses
    Autorzy:
    Herzog, Dobromir
    Powiązania:
    https://bibliotekanauki.pl/articles/2099842.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    supply chain planning
    distributed warehousing
    internal logistics
    warehousing policies
    Opis:
    This study aims to model a planning process of handling outbound deliveries from a set of geographically dispersed warehouses. The model incorporates parameters observed in real-life supply chains and allows simulation of various variants of process supporting decision making of current shipment management, as well as strategic planning of distribution network. A heuristic algorithm that can be used for planning source warehouses for shipments is proposed. The model is built and tested on real business data and its performance proves to be better than the one currently used by a reference company.
    Źródło:
    Operations Research and Decisions; 2021, 31, 2; 93--108
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of government policies on Sustainable Petroleum Supply Chain (SPSC): A case study – Part II (The State of Nebraska)
    Autorzy:
    Ghahremanlou, Davoud
    Kubiak, Wieslaw
    Powiązania:
    https://bibliotekanauki.pl/articles/1818474.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    sustainable petroleum supply chain
    two-stage stochastic programming
    government policies
    Opis:
    The accompanying part I (Ghahremanlou and Kubiak 2020) developed the Lean Model (LM), a two-stage stochastic programming model which incorporates Renewable Fuel Standard 2 (RFS2), Tax Credits, Tariffs, and Blend Wall (BW), to study the policy impact on the Sustainable Petroleum Supply Chain (SPSC) using cellulosic ethanol. The model enables us to study the impact by running computational experiments more efficiently and consequently by arriving at robust managerial insights much faster. In this paper, we present a case study of the policy impact on the SPSC in the State of Nebraska using the model. The case study uses available real-life data. The study shows that increasing RFS2 does not impact the amount of ethanol blended with gasoline but it might lead to bankruptcy of the refineries. We recommend that the government consider increasing the BW because of its positive economic, environmental and social impacts. For the same reason, we recommend that the tax credit for blending the US produced ethanol with gasoline be at least 0:189 $/gal and the tariff for imported ethanol be at least 1:501 $/gal. These also make the State independent from foreign ethanol thereby enhancing its energy security. Finally, the change in policy impacts the SPSC itself, most importantly it influences the strategic decisions, however setting up a bio-refinery at York county and a blending site at Douglas county emerge as the most robust location decisions against the policy change in the study.
    Źródło:
    Decision Making in Manufacturing and Services; 2020, 14, 1; 57--80
    1896-8325
    2300-7087
    Pojawia się w:
    Decision Making in Manufacturing and Services
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of government policies on Sustainable Petroleum Supply Chain (SPSC): A case study – Part I (Models)
    Autorzy:
    Ghahremanlou, Davoud
    Kubiak, Wieslaw
    Powiązania:
    https://bibliotekanauki.pl/articles/1818475.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    sustainable petroleum supply chain
    two-stage stochastic programming
    government policies
    Opis:
    Environmental concerns and energy security have led governments to establish legislations to convert Conventional Petroleum Supply Chain (CPSC) to Sustainable Petroleum Supply Chain (SPSC). The United States (US), one of the biggest oil consumers in the world, has created regulations to manage ethanol production and consumption for the last half century. Though these regulations have created new opportunities, they have also added new burdens to the obligated parties. It is thus key for the government, the obligated parties, and related businesses to study the impact of the policies on the SPSC. We develop a two-stage stochastic programming model, General Model (GM), which incorporates Renewable Fuel Standard 2 (RFS2), Tax Credits, Tariffs, and Blend Wall (BW) to study the policy impact on the SPSC using cellulosic ethanol. The model, as any other general model available in the literature, makes it highly impractical to study the policy impact due to the model’s computational complexity. We use the GM to derive a Lean Model (LM) to study the impact by running computational experiments more efficiently and consequently by arriving at robust managerial insights much faster. We present a case study of the policy impact on the SPSC in the State of Nebraska using the LM in the accompanying part II (Ghahremanlou and Kubiak 2020).
    Źródło:
    Decision Making in Manufacturing and Services; 2020, 14, 1; 23--55
    1896-8325
    2300-7087
    Pojawia się w:
    Decision Making in Manufacturing and Services
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of the rise of global supply chains on the foreign trade policy
    Autorzy:
    Puślecki, Zdzisław W.
    Powiązania:
    https://bibliotekanauki.pl/articles/569980.pdf
    Data publikacji:
    2016
    Wydawca:
    Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
    Tematy:
    foreign trade policy
    global supply chains
    anti-protectionist forces
    cooperating on trade policies
    multilateral trade negotiations
    bilateral trade policy
    Opis:
    The main aim of the article is the indication of the impact of the rise of global supply chains on the foreign trade policy. The subject of the discussion and theoretical contribution in the undertaken research program are new tendencies in international business − the rise of global supply chains, the impact of the rise of global supply chains on the political economy of trade and countries motivations for cooperating on trade policies and the rise of global supply chains and increasing importance of bilateral agreements in the foreign trade policy. It is important to underline that a few multinational firms are responsible for a major share of world trade and for the rise of global supply chains. On the one hand, these firms should support regulatory harmonization across different Preferential Trade Agreements (PTAs) in order to lower trade costs. On the other hand, they might also resist harmonization – and encourage certain non-tariff measures – in order to prevent new competitors from entering markets. This may partly explain the persistence of regulatory divergence, and suggests that the political economy of regulatory convergence, especially in the conditions of the rise of global supply chains, may be more complex than is sometimes suggested
    Źródło:
    Ekonomia XXI Wieku; 2016, 3 (11); 208-227
    2353-8929
    Pojawia się w:
    Ekonomia XXI Wieku
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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