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    Wyświetlanie 1-7 z 7
    Tytuł:
    Fuzzy decision-making approach in geometric programming for a single item EOQ model
    Rozmyte podejście podejmowania decyzji w programowaniu geometrycznym dla jednoartykułowego modelu EOQ
    Autorzy:
    Pattnaik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/361778.pdf
    Data publikacji:
    2015
    Wydawca:
    Wyższa Szkoła Logistyki
    Tematy:
    decision-making
    GPP
    setup cost
    EOQ model
    programming geometric
    single item
    podejmowanie decyzji
    koszty przezbrojenia
    EOQ
    programowanie geometryczne
    artykuł pojedynczy
    Opis:
    Background and methods: Fuzzy decision-making approach is allowed in geometric programming for a single item EOQ model with dynamic ordering cost and demand-dependent unit cost. The setup cost varies with the quantity produced/purchased and the modification of objective function with storage area in the presence of imprecisely estimated parameters are investigated. It incorporates all concepts of a fuzzy arithmetic approach, the quantity ordered, and demand per unit compares both fuzzy geometric programming technique and other models for linear membership functions. Results and conclusions: Investigation of the properties of an optimal solution allows developing an algorithm whose validity is illustrated through an example problem and the results discu ssed. Sensitivity analysis of the optimal solution is also studied with respect to changes in different parameter values.
    Wstęp i metody: Rozmyte podejmowanie decyzji jest akceptowalną metodą postępowania w programowania geometrycznym dla pojedynczego artykułu w modelu EOQ ze zmiennym kosztem zamówienia oraz jednostkowym kosztem zależnym od popytu. Koszty przezbrojeń zmieniają się wraz z wielkością produkcji/zakupu. Analizie poddano modyfikacje zmiennych funkcji magazynowania w zależności od estymowanych parametrów. Problem ten obejmuje takie zagadnienia jak rozmyte podejście arytmetyczne, wielkość zamówienia, wielkość popytu. Omówiono zarówno metodę rozmytego programowania geometrycznego jak i inne zagadnienie związane z programowaniem liniowym. Wyniki i wnioski: Analiza właściwości optymalnego rozwiązania pozwoliła na stworzenie algorytmu, którego poprawność przedstawiono na przykładzie liczbowym. Rezultaty zostały poddane dyskusji. Analiza wrażliwości rozwiązania optymalnego została wykonana przy różnych zmianach wartości parametrów.
    Źródło:
    LogForum; 2015, 11, 2; 183-190
    1734-459X
    Pojawia się w:
    LogForum
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A more direct demonstration on the EOQ model under retailer partial trade credit policy in supply chain
    Autorzy:
    Huang, Y. F.
    Huang, H. F.
    Teng, J. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/206503.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    EOQ
    inventory
    trade credit
    permissible delay in payments
    supply chain
    Opis:
    Huang and Hsu (2008) investigated the inventory system as a cost minimization problem, with the objective to determine the retailer’s optimal inventory policy under the supply chain conditions. Then, Chung (2008) presented the comments to this problem, with the aim to overcome the shortcomings and present complete proofs for the results, relative to Huang and Hsu (2008). However, the proof, proposed by Chung is cumbersome, and can be followed with difficulty. The main purpose of this paper is to develop another proof, much more easy to comprehend.
    Źródło:
    Control and Cybernetics; 2015, 44, 3; 389-397
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of the EOQ Model in Inventory Management in the Supply Chain on the Example of Bahlsen Polska
    Autorzy:
    Paluch, Waldemar
    Powiązania:
    https://bibliotekanauki.pl/articles/504000.pdf
    Data publikacji:
    2019
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    EOQ
    supply chain management maintenance cost
    order cost
    safety stock
    Opis:
    The article presents the theoretical basis of the EOQ (economic quantity order) model, which allows you to optimize the size of the order so as to minimize the cost of frozen capital. The next part presents the results of implementing the model at Bahlsen Polska, assuming that it does not receive any discounts from suppliers in relation to the size of the order. This assumption can be excluded in the case of the functioning of the disposition system, carried out taking into account large contracts with the supplier. Optimization in this situation does not apply to the quantity in the contract, but only to a single call which is information for the supplier who must deliver a certain amount of goods, and at the same time reduce the balance appearing in the contract.
    Źródło:
    Logistics and Transport; 2019, 43, 3; 41-46
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of Adoption of Inventory Control System on Customer Service Delivery: A Case of Chuka University College of Tharaka Nithi County, Kenya
    Autorzy:
    Mamo, Nuria
    Powiązania:
    https://bibliotekanauki.pl/articles/1192690.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    EOQ
    JIT
    MRP I and II
    ABC Analysis
    Customer care
    Pareto optimality
    Opis:
    This study investigated the effects of inventory control system on customer service delivery in Chuka University. The objectives were to identify the nature of inventory control techniques used by different departments in higher learning institution, to find out the extent of adoption of inventory control techniques by different department in higher learning institution and to determine the effect of inventory control techniques on customer service delivery in higher learning institution. The study employed the descriptive research design and the use of questionnaire in data collection. The sample was carefully selected from the population of 250 employees by use of purposive random sampling procedure. Purposive sample of seven departments providing customer service delivery was selected and sample size of 13 employees was selected from each department depending on the number of employees who provided reliable information. The data were presented using diagrams and tables. Analysis was done using frequencies and percentages. Hypotheses was tested for significance of relationship between dependent and independent variables using the chi-square. It was established that the stocks were well managed in Chuka University departments. It was found that various inventory control techniques like the JIT, two-bin and visual review were moderately employed by the departments in Chuka University. 38.4% of the employees recommended the JIT technique to be used most frequently and 30.8% suggest the TBS not to be used at all. It was established that all the stock control system were employed in Chuka University and were fairly implemented. The findings of this study will be used by the institution to come up with the appropriate inventory control model that fully satisfies customer service delivery. The recommendation is that management of the university should provide continuous training to familiarize employees on appropriate inventory control techniques.
    Źródło:
    World Scientific News; 2016, 46; 145-164
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of EOQ in terms of optimum degrees of horizontal and vertical cooperation at a node of supply chain
    Autorzy:
    Mishra, Prem Prakash
    Zimik, Chipem
    Borkotokey, Surajit
    Powiązania:
    https://bibliotekanauki.pl/articles/2175829.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    horizontal cooperation
    vertical cooperation
    carrying cost
    ordering cost
    economic order quantity
    EOQ
    Opis:
    In a complex supply chain network, the production nodes, seller nodes, and buyers are connected randomly. We assume a process of joining two random nodes leading to the bivariate Poisson probability mass function. There exist two types of links - one is horizontal (H) and the other is vertical (V), which support the continuous flow of commodities through the supply chain. This induces competition among workers at a node to manage these two types of links within fixed constraints and creates bargaining to decide the optimal degree of both types of links at a node. We use the Nash security point to obtain the bargaining solution describing the optimal links. We reduce the carrying cost and ordering cost of inventory, which are contrary in their nature by introducing horizontal and vertical links, respectively. We modify the total cost function and establish a new economic order quantity (EOQ), optimal shortage quantity, and total optimal cost in terms of the optimal degree of H and V cooperation.
    Źródło:
    Operations Research and Decisions; 2022, 32, 2; 89--104
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Management of the Size of the Supply Under the Conditions of Inflation
    Autorzy:
    Ślaski, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/27315808.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    CPI index
    EOQ
    Solver application
    purchase optimization
    optymalizacja zakupów
    cena sprzedaży
    narzędzie Solver
    metody nieliniowe
    Opis:
    The publication describes two ways of shopping, taking into account the CPI (Consumer Price Index) inflation rate. In the first case, changes in the sales price are made in a continuous manner in accordance with the inflation rate, and therefore it is better to make larger purchases. In the second case, it is better to carry out smaller purchases, because it is characterized by one-time adjustment of sales prices to the entire purchased a lot of goods. Both cases were verified based on the Solver tool, using non-linear, integer-based optimization. The final result was to determine the optimal purchase quantities with the minimum inventory costs.
    Źródło:
    New Trends in Production Engineering; 2019, 2, 2; 279-288
    2545-2843
    Pojawia się w:
    New Trends in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of a single sampling plan minimizing the sum of risks in an EOQ model with trade credit
    Autorzy:
    Veerakumari, Pradeepa
    Harikrishnan, Aruna
    Powiązania:
    https://bibliotekanauki.pl/articles/406609.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    trade credit
    economic order quantity
    EOQ
    minimum sum of risks
    Poisson distribution
    kredyt handlowy
    rozkład Poissona
    Opis:
    Acceptance sampling by attributes is a universally used statistical tool for quality control. It is a technique that deals with the decision to accept or reject a batch of goods using defined procedures. An attribute single sampling plan designed under the assumption that the number of defects has a Poisson distribution is the optimal plan whenever the chance of a defect occurring in the manufacturing process is low. This study introduces the incorporation of an attribute single sampling plan minimizing the sum of risks with an economic order quantity (EOQ) model taking into account the possibility of trade credit. The plan ensures the effectiveness of the optimal design based on the minimization of costs including the inspection costs, stock holding costs and ordering costs.
    Źródło:
    Operations Research and Decisions; 2019, 29, 1; 121-130
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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