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Warranty Period And Product Price Optimization For Remanufactured Products, Yuxi Liu Dec 2015

Warranty Period And Product Price Optimization For Remanufactured Products, Yuxi Liu

Theses and Dissertations

This study considers a remanufactured electrical product under a tiered warranty policy. Warranty is key in ensuring a good manufacturer—consumer relationship. Manufacturers hope to minimize warranty costs while consumers believe that good warranty promises better product quality and reliability. This Thesis presents an optimal warranty period from the perspective of a manufacturer to maximize the total expected profits, while ensuring sustained consumer relation. We use real data from a local company with a global supply chain to provide a numerical example.


Optimal Cyclic Control Of A Buffer Between Two Consecutive Non-Synchronized Manufacturing Processes, Wenhuan Hsieh Aug 2015

Optimal Cyclic Control Of A Buffer Between Two Consecutive Non-Synchronized Manufacturing Processes, Wenhuan Hsieh

Theses and Dissertations

This thesis presents methods for efficiently controlling a buffer that is located between two non-synchronized manufacturing processes. Several machines with different cycle times and/or batch sizes perform each manufacturing process. The overall operation cycles every T time units. The first objective of the problem is to minimize the average buffer inventory level during one cycle. The second objective is to minimize the maximum inventory level observed at any point during the cycle. This new optimization problem has not been previously considered in the literature. An integer program is developed to model this problem. In addition, two heuristic methods—a simulated annealing …


A Study On The Synthesis - Structure - Property - Performance Relationship Of Bulk Functionalized Polyurethane Foams For Water Filtration Applications, Subhashini Gunashekar May 2015

A Study On The Synthesis - Structure - Property - Performance Relationship Of Bulk Functionalized Polyurethane Foams For Water Filtration Applications, Subhashini Gunashekar

Theses and Dissertations

Polymers, macromolecules made of repeat units, are one of the major building blocks of life. They exist naturally in the form of DNA, proteins, sugars, cellulose, natural rubber etc. However, it was only in the mid twentieth century man began to understand its true nature and developed a new class of materials called ‘Plastics’. In recent years, the concept of a truly tailor made polymer has become a reality as a result of better understanding of the polymer structure-property relationships, newer polymerization techniques and due to the availability of new low cost monomers. Polymers from different elements with any desired …