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    Wyświetlanie 1-14 z 14
    Tytuł:
    Intermodal Transport and Road Transport in Poland – Results of the Study
    Autorzy:
    Walasek, Robert
    Grodzki, Arkadiusz
    Powiązania:
    https://bibliotekanauki.pl/articles/503966.pdf
    Data publikacji:
    2016
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    Management
    supply chain
    intermodal transport
    optimization
    Opis:
    The main objective of the text is to try to carry out the analysis with the predominant objective to try and present in realistic way the factors influencing the choice between a service realised only with the use of a road transport and intermodal transport. The author of the analysis put particular stress on the costs of the carriage service, time of its realisation and CO2 emission. The analysis also aimed at showing which of the presented technologies of service providing is more friendly to natural environment. This is due to the fact that the market for intermodal transport and road transport in Poland, knowledge of the mechanisms of price formation and the costs are still low. It is often difficult to determine the unit price of transport modes or mechanisms of shaping them. This results primarily from difficulties with the calculation of the actual cost of transport, terminal operations, management and other issues occurring in road transport and intermodal logistics functions.
    Źródło:
    Logistics and Transport; 2016, 31, 3; 27-36
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effectiveness of intermodal transport in Poland – results of the study
    Autorzy:
    Walasek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/409180.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    management
    supply chain
    intermodal transport
    optimization
    Opis:
    Increasing demand for transport of goods exerts negative influence on the environment. Therefore most European countries divide realization of transportation of commodities between various transport branches by using so-called intermodal transport. Therefore it seems reasonable to carry out an analysis with the predominant objective to try and present in realistic way the factors influencing the choice between a service realized only with the use of a road transport and intermodal transport. The author of the analysis put particular stress on the costs of the carriage service, time of its realization and CO2 emission. The analysis also aimed at showing which of the presented technologies of service providing is more friendly to natural environment. The results obtained from the comparison of intermodal and road transport for a given distance enable stating that effectiveness of railway-road transport is influenced by 22% lower internal costs than the ones of road transport and by lower emission of carbon dioxide.
    Źródło:
    Research in Logistics & Production; 2017, 7, 2; 159-170
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Supply Chain Optimization and Competitiveness of an Enterprise - Results of the Study
    Autorzy:
    Walasek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/409262.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    management
    supply chain
    competitive advantage
    optimization
    Opis:
    The main objective of the study is to characterize the influence of key aspects associated with supply chain management on building a competitive advantage by enterprises operating in Lodz region. The study presents the influence of Supply Chain Management (SCM) on the supply chain optimization process for all links of the chain. The paper also introduces reasoning and presents results of an empirical research referring directly to the influence of supply chain optimization in enterprises on the dimension of their market competitiveness.
    Źródło:
    Research in Logistics & Production; 2016, 6, 2; 177-189
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Closed Loop Supply Chain with Production Planning
    Autorzy:
    Stecz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/409322.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    closed loop
    supply chain
    optimization
    production planning
    Opis:
    We present a Closed Loop Supply Chain (CLSC) model that supports a production planning (PP) process. CLSC model is based on CLSC framework model which consists of four main centers: collection, recovery center, distribution and disposal centers. These logistics parts support main production lines. Some quantity of the products is recovered and the factories don’t need to spend money for production. This is a simple cost reduction process. In CLSC literature one can hardly meet the models of production planning processes supported by CLSC. Important problem with that models is the computational complexity when one wants to prepare production plans for more than one time period. This is connected with a number of the numerical variables of the CLSC and PP models which are usually Integer Programming models solved with Branch & Bound algorithms. We present some modifications of the widely known and used constraints in the CLSC models to optimize solving process. All the experiments were conducted with the CPLEX solver.
    Źródło:
    Research in Logistics & Production; 2016, 6, 2; 117-128
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Maintenance Optimization for Transport Vehicles in a Supply Chain
    Autorzy:
    Rezg, Nidhal
    Sofiene, Dellagi
    Zied, Hajej
    Powiązania:
    https://bibliotekanauki.pl/articles/504640.pdf
    Data publikacji:
    2014
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    maintenance policy
    supply chain
    proportional hazard
    optimization
    Opis:
    In this paper, we are interested in determining a maintenance policy with an optimal cost to enable the company to generate significant profits, often the means of transport travelled different paths, they are characterized by the distance they covered; however each distance has an effect on the operating characteristics of means of delivery. The objective of this paper is twofold: It aims both to introduce the model of supply chain and specify distances, and codify the use of it in the proportional hazard model, later a maintenance policy was presented which takes into consideration the types of paths travelled by the means of delivery.
    Źródło:
    Logistics and Transport; 2014, 24, 4; 7-14
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neutrosophic compromise programming approach for multiobjective nonlinear transportation problem with supply and demand following the exponential distribution
    Autorzy:
    Adhami, Ahmad Yusuf
    Faizan, Mohd
    M, Anas
    Powiązania:
    https://bibliotekanauki.pl/articles/2175845.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    fuzzy approach
    multiobjective optimization
    supply chain
    transportation
    uncertainty
    Opis:
    Decision-making is a tedious and complex process. In the present competitive scenario, any incorrect decision may excessively harm an organization. Therefore, the parameters involved in the decision-making process should be looked into carefully as they may not always be of a deterministic nature. In the present study, a multiobjective nonlinear transportation problem is formulated, wherein the parameters involved in the objective functions are assumed to be fuzzy and both supply and demand are stochastic. Supply and demand are assumed to follow the exponential distribution. After converting the problem into an equivalent deterministic form, the multiobjective problem is solved using a neutrosophic compromise programming approach. A comparative study indicates that the proposed approach provides the best compromise solution, which is significantly better than the one obtained using the fuzzy programming approach.
    Źródło:
    Operations Research and Decisions; 2022, 32, 3; 1--15
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methods of optimizing the supply chain on the example of a selected enterprise
    Autorzy:
    Kuryło, Piotr
    Cyganiuk, Joanna
    Michalski, Dariusz
    Idzikowski, Adam
    Sobczyńska-Linke, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/88492.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    logistics network
    supply chain
    optimization
    sieć logistyczna
    łańcuch dostaw
    optymalizacja
    Opis:
    To consider the optimization of the supply chain, a company operating in the cosmetics and hygiene industry was selected. It is a typical production company with foreign capital, working on entrusted material which entirely belongs to the parent company. The company management, purchasing and sales department are located at the parent company, the Polish branch is entrusted only with production and direct distribution of finished goods. The purpose of the work is to present the applied logistic solutions, characterize and analyse the existing supply chain and to propose actions to optimize currently used methods.
    Źródło:
    System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 607-615
    2657-5450
    Pojawia się w:
    System Safety : Human - Technical Facility - Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization programming tools supporting supply chain management
    Autorzy:
    Szkutnik-Rogoż, Joanna
    Małachowski, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/27311443.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    mathematical programming
    optimization
    supply chain
    programowanie matematyczne
    optymalizacja
    łańcuch dostaw
    Opis:
    The issue of transportation is a particular type of mathematical programming that facilitates searching for and determining an optimal distribution network, considering the set of suppliers and recipients. This paper uses a numerical example to present a solution to a transport problem utilizing classical computation methods, i.e., the northwest corner, the least cost in a matrix, and the VAM approximation method. The objective of the paper was to develop tools in the form of algorithms that would then be implemented in three various computing environments (R, GNU Octave, and Matlab) that allow us to optimize transport costs within an assumed supply network. The model involved determining decision variables and indicating limiting conditions. Furthermore, the authors interpreted and visualized the obtained results. The implementation of the proposed solution enables users to determine an optimal transport plan for individually defined criteria.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 3; art. no. e145570
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimization of Complex Operations in the Supply Chain Through the Implementation of Advanced Planning System
    Autorzy:
    Rut, Joanna
    Kulińska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/504299.pdf
    Data publikacji:
    2018
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    enterprise
    optimization
    supply chain
    information flow
    IT systems
    APS
    planning
    scheduling
    Opis:
    Contemporary variability of the environment and market dynamics force enterprises to optimize operations in the supply chain. Advanced IT systems such as the Advanced Planning System are a powerful tool that supports many areas in supply chain management. An efficient supply chain is a key element in gaining a competitive advantage in the market. Therefore, the foundation of the material and information flow regulation in manufacturing enterprises is the efficient exchange of information with both the internal and external environment of the organization. The article presents the optimization process of complex operations taking place in the supply chain by implementing the Advanced Planning System in the examined enterprise. It also enumerates significant benefits resulting from the implementation.
    Źródło:
    Logistics and Transport; 2018, 40, 4; 91-96
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optymalizacja kosztów w łańcuchu dostaw - implementacja modelu matematycznego
    Optimization of costs in supply chain - mathematical model implementation
    Autorzy:
    Sitek, P.
    Wikarek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/276921.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    łańcuch dostaw
    programowanie całkowitoliczbowe
    optymalizacja
    optimization
    supply chain
    mixed integer linear programming
    Opis:
    W artykule przedstawiono implementację autorskiego modelu optymalizacji kosztów w łańcuchu dostaw. Model został sformułowany w postaci zagadnienia programowania liniowego całkowitoliczbowego z funkcją celu określającą koszty dystrybutora, producenta oraz transportu. Implementacji dokonano w środowisku pakietu optymalizacji LINGO firmy LINDO Systems Inc. Po dokonaniu implementacji zostały przeprowadzone eksperymenty obliczeniowe dla przykładowych zbiorów danych.
    The paper presents the implementation of the supply chain cost optimization model. The model was formulated as a linear integer programming problem with objective function specifies the cost of distribution, manufacturing and transportation. Implementation took place in an environment optimization package "LINGO". After the implementation the computational experiments were carried out for sample data sets.
    Źródło:
    Pomiary Automatyka Robotyka; 2012, 16, 2; 141-146
    1427-9126
    Pojawia się w:
    Pomiary Automatyka Robotyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model matematyczny optymalizacji kosztów w łańcuchu dostaw
    Mathematical model of optimization in supply chain
    Autorzy:
    Sitek, P.
    Wikarek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/276855.pdf
    Data publikacji:
    2012
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    łańcuch dostaw
    programowanie całkowitoliczbowe
    optymalizacja
    optimization
    supply chain
    mixed integer linear programming
    Opis:
    W artykule przedstawiono autorski model optymalizacji łańcucha dostaw z punktu widzenia operatora logistycznego. Model został sformułowany w postaci zagadnienia programowania liniowego całkowitoliczbowego z funkcją celu określającą koszty dystrybutora, producenta oraz transportu. Przeprowadzono szczegółową dyskusję modelu z omówieniem ograniczeń, parametrów i zmiennych decyzyjnych. Dodatkowo w artykule zaprezentowano aktualny stan outsourcingu usług logistycznych.
    The article presents the author’s model of supply chain optimization in terms of logistics operator. The model was formulated as an integer linear programming problem with objective function specifies the cost of a distributor, manufacturer, and transportation. A detailed discussion of the discussion of model constraints, parameters and decision variables. In addition, the article presents the current state of logistics outsourcing.
    Źródło:
    Pomiary Automatyka Robotyka; 2012, 16, 2; 137-140
    1427-9126
    Pojawia się w:
    Pomiary Automatyka Robotyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model of Container Transport System in Long Distance Freightage – Analysis and Optimalization of Supply Chain
    Autorzy:
    Lorenc, Augustyn Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/504295.pdf
    Data publikacji:
    2013
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    Container transport system
    supply chain
    international transport
    transport model
    optimization of freight transport
    UTI
    Opis:
    This article is about the integration idea of rail and road long-distance transport to increase the efficiency of the transport chain. The article compared two transport models - conventional (using road transport) and intermodal transport (using road and rail transport). The proposed intermodal model uses the Container Transport System for freight transport in relation: consolidation point (company) – container terminal – rail transport – container terminal – deconsolidation point and radial transport system of road transport to ensure door-to-door delivery. The model was examined to optimize cost, time, capacity and environmental factors. Moreover, in the article the main features of both models were identified and compared. Freight rates and the prices given in the article are consistent with the actual rates charged by carriers, but they are not an offer.
    Źródło:
    Logistics and Transport; 2013, 20, 4; 81-88
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The concept a logistic network organization Lviv-Rzeszow
    Autorzy:
    Reshetnikova, Olga
    Dyczkowska, Joanna
    Olkiewicz, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/27313731.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    supply chain
    process optimization
    logistics
    Industry 4.0
    łańcuch dostaw
    optymalizacja procesu
    logistyka
    Przemysł 4.0
    Opis:
    Purpose: This publication focuses on issues related to logistics management. The aim of this publication is to show the possibility of creating a logistics center within logistic networks. Design/methodology/approach: This publication uses a conceptual method based on observations, sales forecasts and distance analysis of logistics centers. Findings: The analysis of the collected and presented data as part of the concept of creating a logistics center Lviv-Rzeszów shows that such an action is justified, in particular in economic terms. The study shows that the optimization of processes as part of the implementation of the concept would allow for many benefits for the economy and regional development, as well as for the transport and logistics industry itself. Research Limitation/implication: During the study, there were limitations related to obtaining empirical data. The most important implication of the study is the statement that the planned investment will bring significant benefits to entrepreneurs and other market stakeholders. Originality/Value of paper: The publication showed the possibilities of using the new logistics center Lviv-Rzeszów and its impact regional and business development.
    Źródło:
    Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2022, 158; 513--524
    1641-3466
    Pojawia się w:
    Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mathematical programming model of cost optimization for supply chain from perspective of logistics provider
    Autorzy:
    Sitek, P.
    Wikarek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/407341.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    logistyka
    łańcuch dostaw
    koszty
    optymalizacja
    transport multimodalny
    supply chain
    MILP
    mixed integer linear programming
    optimization
    3PL-Third Party Logistic
    multimodal transport
    Opis:
    The article presents the problem of optimizing the supply chain from the perspective of a logistics provider and includes a mathematical model of multilevel cost optimization for a supply chain in the form of MILP (Mixed Integer Linear Programming). The costs of production, transport and distribution were adopted as an optimization criterion. Timing, volume, capacity and mode of transport were also taken into account. The model was implemented in the environment of LINGO ver. 12 package. The implementation details, the basics of LINGO as well as the results of the numerical tests are presented and discussed. The numerical experiments were carried out using sample data to show the possibilities of practical decision support and optimization of the supply chain. In addition, the article presents the current state of logistics outsourcing.
    Źródło:
    Management and Production Engineering Review; 2012, 3, 2; 49-61
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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