Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"variable demand"”.
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Strategic facility siting in a highly variable demand environment
Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering; in conjunction with the Leaders for Manufacturing Program at MIT, 2002.
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Inventory Models for Intermittent Highly Variable Demand and Policy Parameter Adjustments to Meet Desired Service Level Requirements
… first assay examines the robustness of lead time demand models for the continuous review (r;Q) inventory policy. A number of classic distributions as well as distribution selection rules are examined under a wide variety of demand conditions. First, the models are compared to each other by …
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Simulation, optimisation and flexible scheduling of MSF desalination process under fouling. Optimal design and operation of MSF desalination process with brine heater and demister fouling, flexible design operation and scheduling under variable demand and seawater temperature using gPROMS.
… processes under fouling which will meet variable demand of freshwater. First, a steady state model of MSF is developed based on the basic laws of mass balance, energy balance, and heat transfer equations with supporting correlations for physical properties. gPROMS software is used to …
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MSF process modelling, simulation and optimisation : impact of non-condensable gases and fouling factor on design and operation. Optimal design and operation of MSF desalination process with non-condensable gases and calcium carbonate fouling, flexible design operation and scheduling under variable demand and seawater temperature using gPROMS.
… seawater temperature and different freshwater demand correlations are developed based on actual data. For different number of flash stages, operating parameters such as seawater rejected flow rate and brine recycle flow rate are optimised, while the total annual operating cost of the MSF …
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Supply chain strategy for technology manufacturing : a case study
… to the numerous alternatives and the number of variables involved. To develop an understanding of the issues at QWBS, I began by researching technology manufacturing supply chains. I also developed a cost model for analyzing QWBS's supply chain. The final form of this model is a series of …
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Analysis and cost versus reliability in a multi-echelon supply chain for a chemical plant
… at any required Cycle Service Level (CSL) under variable demand and production reliability. To solve this problem, we will base historical data to estimate the distribution type, the average demand and the standard deviation for the production line and initially assume that some factors like …
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Optimal consignment stocking policies for a supply chain under different system constraints
… shipments is added as the fourth decision variable. A variable demand rate is allowed in the third set of models. Uncertainty caused by the varying demand are controlled by a safety factor, which becomes the fifth decision variable. Finally, the risk of obsolescence of the product is …
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Demand forecasting and decision making under uncertainty for long-term production planning in aviation industry
… times, large capital investments, and highly variable demand. Making important decisions with intensive capital investments requires accurate forecasting of future demand. However, this can be challenging because of significant variability in future scenarios. The purpose of this research is …
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An applied manufacturing system for highly-complex assembly factory
… company (SEMC). The company faces highly variable demand for its products that require highly-complex assembly within the factory. When the demand is low, the manufacturing factory must to adjust the production performance, and implement various cost reductions in order to maintain profit. …
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Determining Kanban Size Using Mathematical Programming and Discrete Event Simulation for a Manufacturing System with Large Production Variability
… kanban size in a manufacturing system with variable workforce production rate and variable demand pattern. This study used Stewart-Marchman-Act, a Daytona Beach rehabilitation center for those with mental disabilities or recovering from addiction that has several manufacturing processes, as …
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Optimized distribution supply chain for improved customer service
… desires. This behavior leads to fragmentation of demand that increases supply chain complexity and cost. At Company X, this behavior is also visible. There is a proliferation of product types and sizes as these are increasingly used for product differentiation by both the company and original …
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Improving multi-channel retail delivery performance in key market cities
… and ensures predictable and right-sized demand levels. The strategy needs to accurately predict future demand based on limited historical information. 2. How to Fulfill - The transformation of a store back room into a mini distribution center and all of the processes design to enable …
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Strategic sourcing in a direct import supply chain with increasing globalization trends while mitigating risk
… candidates are analyzed through evaluating the variables that contribute to total landed cost. Basker and Van (2008) present theories that examine the two way relationship between the size of a dominant retailer and the imports of consumer goods. They conclude that a chain needs to reach a …
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The equity and efficiency impacts of congestion charging measures: the case of Seoul, Korea
… floated as an efficient way of managing travel demand in urban areas, reducing traffic congestion and externalities as well as raising revenues to fund transportation improvements. Moreover, the policy maker who faces heavy traffic congestion now considers it as a promising policy alternative. …