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 20 of 34 for “"holding cost"”.
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Multi-echelon inventory strategies for a retail replenishment business model
… to its customers while minimizing inventory holding cost. Specifically, safety stock holding cost is targeted as it accounts for the majority of on-hand inventory and can be reduced without significantly impacting the underlying supply chain architecture. This thesis outlines the application …
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The impact of fuel price volatility on transportation mode choice
… the price of diesel fuel, which is an important cost component in freight logistics. This thesis explores the impact of fuel price volatility on supply chains by examining the sensitivity of decisions under various scenarios. Specifically, we analyze the transportation mode choice decision …
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An optimal stock building strategy in a manufacturing company
… to satisfy the demand with minimum inventory holding cost. An optimization software ILOG OPL Studio 5.1 is used to solve the LP model to optimality within several seconds. The purpose of the analysis is three fold: (1) to identify the bottleneck processes where the capacities fall short of …
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Reduction of total production cost through the use of safety stock and process improvements
… of a multi-step approach to optimize the total cost of the production system, balancing holding cost (inventory) with the disruption cost of a shortage. The initial pilot shows that small increases in inventory can have an order of magnitude of cost avoidance. The methodology includes system …
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Uncapacitated Lot-Sizing Problems With Setup Interactions
… focus on determining a minimal total production cost schedule. These production costs are generally composed of three components: a variable production cost, an inventory holding cost, and a setup cost. The optimal solution balances the holding costs against the setup and variable costs. In most …
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Multiple-part-type production scheduling for high volume manufacturing (time-based approach)
… selection is made based on minimizing total cost (inventory holding cost and changeover cost). Comparing with current line behavior, the recommended selection will reduce the total cost by more than half.
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Dynamic Programming Decomposition Methods For Capacity Allocation And Network Revenue Management Problems
… Here, the decision maker tries to minimize the cost of scheduling a set of jobs arriving randomly over time to be processed within a given planning horizon. The scheduling (holding) cost of a given job depends on its priority level and the length of its scheduled waiting period. In this setting, …
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Analysis and cost versus reliability in a multi-echelon supply chain for a chemical plant
… the company can use it to minimize the total cost 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 …
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Evaluation of cost balancing policies in multi-echelon stochastic inventory control problems
… units. In each period, there is a per-unit holding cost is incurred for each unit of supply that stays in the system and a per-unit backorder cost is incurred for each unsatisfied unit of demand. The objective of the inventory control policy is to minimize the long-run expected average cost …
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UNINTENDED EFFECTS OF CHARTER SCHOOL PROGRAMS
… to locate in districts with high expenditures holding cost and performance constant. However, in states where charter school payments do not vary with district location, charter school location is not influenced by district expenditures. Compensations for enrolling disadvantaged students create …
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Optimal consignment stocking policies for a supply chain under different system constraints
… the vendor only for the consumed products. The holding cost consists of a storage component and a financial component. Moreover, both of the cases that the unit holding costs may be higher at the buyer or at the vendor are considered. Based upon such a system, four sets of inventory models are …
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Analyzing the make-to-stock queue in the supply chain and eBusiness settings
… backlogged and both agents share the backorder cost. In addition, a linear inventory holding cost is charged to the retailer, and a linear cost for building production capacity is incurred by the supplier. The inventory level, demand rate and cost parameters are common knowledge to both agents. …
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Intermittent demand forecasting for inventory control : the impact of temporal and cross-sectional aggregation
… of inventory efficiency in terms of both the holding cost and the realized service level. It appeared that when forecasts using temporal aggregation were augmented with information about customer behavior, their purchase patterns might be a helpful consideration for enhancing inventory …
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Optimizing inventories and standardizing planning procedure in a multipart manufacturing system
… the supply chain so as to minimize the inventory holding cost for the whole company. To do this analysis, a 5 stage multi-echelon supply chain model is constructed. All the stage costs are measured and standardized based on data from the "SAP" system. To estimate the demand variability, we utilize …
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Optimization-based decision support system for retail souring
… in distributional forecasts, supply constraints, holding cost, pricing information and outputs explicit sourcing decisions mentioned above. A prototype for forecasting and optimization code is ready and currently being evaluated to secure approval for a live pilot for Summer 2013 campaign sourcing.
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Intermodal variability and optimal mode selection
Transportation cost is one of the major costs in supply chain. Companies need to optimize every aspect of the transportation process to reduce the total logistics cost. A key aspect is optimal mode selection to minimize the cost of every lane in a company's transportation network. The traditional …
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Robust fluid control of multiclass queueing networks
… input control decision, and optimize the total holding cost. For closed queueing networks, we focus on the sequencing problem and optimize the throughput. We compare the robust solutions to those derived by fluid control, dynamic programming and stochastic input control. We show that the robust …
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Multi-echelon multi-product inventory strategy in a steel company
… provide short service times under low inventory costs. The goal of this thesis is to generate a model and conclusions to determine where and how much inventory to hold to satisfy a required service level. Risk pooling is an important consideration for this problem; once a steel product advances …
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Improving Manufacturing Systems Using Integrated Discrete Event Simulation and Evolutionary Algorithms
… environment, where lead time and total inventory holding cost are used as operational performance measures. The research here has introduced a novel approach through integration of genetic algorithms based multi-objective combinatorial optimisation and discrete event simulation modelling tool to …
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Modeling and analysis of commercial finished goods inventory
… margins, increasing emphasis is placed on cost optimization within the supply chain. One critical component of this is the financial impact of inventory policies and the transportation choices affecting these policies. Overseas manufacturing and ocean transportation are the most …
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