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 67 for “"cost minimization"”.
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Cost Minimization for Hot Gas Defrost System
Frost accumulation on evaporator coils has been a serious problem that decreases the efficiency of refrigeration systems. Many defrost methods have been used and hot gas defrost is the most common for industrial refrigeration applications. However, it is not a simple task to run an efficient hot …
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Improved seismic design of structures using risk-targeting and cost-minimization considerations
… and an approach that minimizes the life-cycle costs. While the “uniform-hazard” approach is embedded in most of seismic design regulations, many studies have highlighted the need for a more rigorous and explicit control of the structural performance and of the consequences of seismic damage, …
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Integrated Mobility and Service Management for Network Cost Minimization in Wireless Mesh Networks
… mobility and service management for network cost minimization in Wireless Mesh Networks (WMNs). We first investigate the problem of mobility management in WMNs for which we propose two efficient per-user mobility management schemes based on pointer forwarding, and then a third one that …
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Stochastic singular control: existence, characterization and approximation of solutions in cost minimization problems and games
… singular control with submodular costs. In a not necessarily Markovian setting, we establish the existence of Nash equilibria via Tarski's fixed point theorem, and we propose an algorithm to determine a Nash equilibrium. Moreover, we derive relations between weak (distributional) …
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The economic evaluation of architectural techniques in cost minimization for rural health facilities in Kenya
Thesis (M.S.)--Massachusetts Institute of Technology, Alfred P. Sloan School of Management; and, (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 1982.
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Transactive control of electric railway networks
… control mechanism that minimizes the operational costs of individual trains and integrates rail-side distributed energy resources (DERs) within an electric railway system. The operation of each individual train is posed as an energy cost minimization problem that is constrained by both the …
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Operations improvement in a semiconductor capital equipment manufacturing plant : resource optimization, labor flexibility, and inventory management
… to allocate resources to meet demand at minimum cost to maintain their manufacturing competitiveness. This thesis draws heavily on the research done at Varian Semiconductor Equipment, a manufacturer of ion implantation machines for the semiconductor industry, over a period of seven months as part …
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The economic potential of establishing a poultry litter handling industry
… areas). A linear programming feed cost minimization model was used to estimate the value of litter as a feed for beef stockers and beef cows. The value of litter in beef and stocker rations were estimated by determining the value of alternative feeds replaced by litter. The value of …
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A deterministic multiechelon inventory model
… demand and resupply are deterministic. Using cost minimization as the objective, three models are developed which address the problems of (1) no stockouts allowed (EOQ) , (2) backorders allowed, and (3) finite production with no stockouts allowed. General solutions for the optimal policy are …
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Macro Performance, Fiscal Behavior, and Water Investments: Three Essays on the Effects of Foreign Aid in Bangladesh
… into planning framework. First, a dynamic cost minimization model is utilized to compute the minimum amount of investments needed in various water projects such that an exogenously set agricultural growth target can be met. Next, the minimum cost solution is again derived accounting for the …
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Development of a prototype model for optimizing silvicultural investment on a diverse forest ownership in central Maine
… a choice of three objective functions (cost minimization, present net worth maximization, and woodflow maximization) subject to limited land area, investment levels, and required woodflows. The model incorporated data from a 150,000 acre study area but was developed with the intention …
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A linear programming approach to minimizing wood procurement costs for integrated forest products firms
A linear programming cost minimization problem is presented to demonstrate the applicability of the technique to problems inherent in the forest management decision making process. A case study of an integrated forest products firm with the objective of minimizing the present value cost of wood …
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APPLIED MECHANISM DESIGN AND ECONOMICS OF PLATFORMS
… is efficient in that it is driven by production cost minimization.
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Algorithmic intervention to mitigate inventory and ordering amplification in multi-echelon supply chains
… bullwhip using simulation modeling, including cost minimization and amplification minimization, and then interprets the results in the context of existing models of human heuristics in ordering decisions. The algorithmic approaches are optimized as one member within a model of a human decision …
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Distributed Newton-type algorithms for network resource allocation
… Utility Maximization (NUM), and network flow cost minimization problems. For NUM problems, we develop a distributed Newton-type fast converging algorithm using the properties of self-concordant utility functions. Our algorithm utilizes novel matrix splitting techniques, which enable both …
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Bi objective multi depot location routing problem with time window for EVs
… problem. The mathematical model integrates cost minimization with workload fairness under time windows. A custom metaheuristic algorithm, combining a hybrid Genetic Algorithm (GA) and Ant Colony Optimization (ACO), was developed to optimize depot locations and EV routes, minimizing …
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From Wallets to Wages: Consumer Income, Job Design, and Pay Disparities
… that serve lower-income consumers emphasize cost minimization by requiring workers to perform a wider range of general tasks. Matching consumer foot traffic data and establishment-level wage records, I find that establishments serving higher-income consumers pay their workers more. This …
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External operations portfolio analysis and segmentation
… are offered to customers at little or no cost in order to facilitate the sale of certain implantable products that require the use of such instruments. It faces considerable challenges in managing the instrument supply chain. Company X is interested in better understanding its instrument …
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The role of demand uncertainty in materials selection : a case study on aluminum recycling
… evaluated are scrap purchased and production cost. The batch planning process is affected by a number of assumptions about factor inputs including the model resolution, salvage value, coefficient of variation, scrap cost and compositional constraints. Results show that understanding the …
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Analyzing Cost Implications of Water Quality Trading Provisions: Lessons from the Virginia Nutrient Credit Exchange Act
The purpose of this study was to analyze the cost implications of various provisions of the Virginia Nutrient Credit Exchange Act. The first objective was to estimate the cost implications of point source trading provisions of the Act. An integer programming cost minimization model was constructed …
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