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Wyszukujesz frazę "stochastic lead time" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Lead times - their behavior and the impact on planning and control in supply chains
    Autorzy:
    Nielsen, P.
    Michna, Z.
    Sørensen, B. B.
    Dung, N. D. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/407076.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    supply chain management
    stochastic lead time
    simulation
    inventory management
    Opis:
    Lead times and their nature have received limited interest in literature despite their large impact on the performance and the management of supply chains. This paper presents a method and a case implementation of the same, to establish the behavior of real lead times in supply chains. The paper explores the behavior of lead times and illustrates how in one particular case they can and should be considered to be independent and identically distributed (i.i.d.). The conclusion is also that the stochastic nature of the lead times contributes more to lead time demand variance than demand variance.
    Źródło:
    Management and Production Engineering Review; 2017, 8, 2; 30-40
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The bullwhip effect in supply chains with stochastic lead times
    Autorzy:
    Michna, Zbigniew
    Nielsen, Izabela Ewa
    Nielsen, Peter
    Powiązania:
    https://bibliotekanauki.pl/articles/584974.pdf
    Data publikacji:
    2013
    Wydawca:
    Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
    Tematy:
    supply chain
    bullwhip effect
    inventory policy
    stochastic lead time
    lead time demand forecasting
    Opis:
    In this article we consider a simple two stage supply chain. We quantify the variance amplification of orders – the bullwhip effect in a model with stochastic lead times. Employing the moving average forecasting method for lead time demands we obtain an exact value of the bullwhip effect measure. We analyze the formula using numerical examples.
    Źródło:
    Mathematical Economics; 2013, 9 (16); 71-88
    1733-9707
    Pojawia się w:
    Mathematical Economics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of stochastic lead times on the bullwhip effect – an empirical insight
    Autorzy:
    Nielsen, P.
    Michna, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/407121.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    supply chain
    bullwhip effect
    inventory policy
    lead time demand
    order-up-to-level policy
    stochastic lead time
    demand forecasting
    lead time forecasting
    lead time demand forecasting
    Opis:
    In this article, we review the research state of the bullwhip effect in supply chains with stochastic lead times. We analyze problems arising in a supply chain when lead times are not deterministic. Using real data from a supply chain, we confirm that lead times are stochastic and can be modeled by a sequence of independent identically distributed random variables. This underlines the need to further study supply chains with stochastic lead times and model the behavior of such chains.
    Źródło:
    Management and Production Engineering Review; 2018, 9, 1; 65-70
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Supply lead time uncertainty in a Sustainable Order Quantity inventory model
    Autorzy:
    Digiesi, S.
    Mossa, G.
    Mummolo, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/407195.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inventory management
    SOQ
    loss factor of transport
    stochastic variability of supply lead time
    Opis:
    Transport plays a key role in inventory management since it affects logistic costs as well as environmental performance of the supply chain. Expected value and variability of supply lead time depend on the transportation means adopted, and influence the optimal values of order quantity, reorder level, and safety stock to be adopted. Fast transportation means allow reducing expected value of the lead time; they are characterized by the highest costs of externalities (i.e. air pollutant emission, noise, congestion, accidents). On the contrary, slow transportation means require high inventory level due to large order quantity; in this case costs of externalities tend to decrease. The Sustainable Order Quantity (SOQ) [1] allows identifying optimal order quantity, reorder level, safety stock as well as transportation means which minimize the sum of the logistic and environmental costs in case of stochastic variability of product demand. In this paper, the authors propose a new SOQ analytical model considering stochastic variability of supply lead time (LT). A solution procedure is suggested for solving the proposed model. The approach is applied to a real industrial case study in order to evaluate the benefits of applying it if compared with the traditional one.
    Źródło:
    Management and Production Engineering Review; 2013, 4, 4; 15-27
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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