臺灣博碩士論文加值系統

在供應鏈物流系統裡，中間商的功能是採買進商品，並且將買進的商品售出給大眾或是其他公司。在本篇論文中，我們導入產品退化的特性於兩個使用不同的最佳化決策的存貨模型中用以數學化地描述出我們所提出的中間商的存貨問題。從數學式中，我們首先證明了在兩個模型中都會唯一存在一個最佳的週期長度使得兩個模型的最佳化準則都最大化。然後我們導出了兩個模型的近似解且證明了這兩個近似解將會是個別問題最佳解的下界或上界。根據這些結果，我們可以對兩個模型分別提供一個有效率的演算法用以搜尋其最佳解。最後，針對兩個模我們各提供一個例子用以說明我們所提出問題的特色。

In a supply chain logistics system, the function of an intermediary firm is to purchase products and to sell those purchased products to the public or to other firms. In this paper, we incorporate the deteriorating nature of the product into two deterministic inventory models using two different optimization criterions to mathematically formulate the proposed problem for the intermediary firm. From the mathematical formulation, we first show that there exists a unique optimal cycle length for each model such that the optimization criterion for each model is maximized. Then, we derive an approximate solution and a lower / upper bound for the optimal cycle length. Based on these results, an efficient algorithm is provided to search for the optimal cycle length for each model. Finally, a numerical example in each model is presented to illustrate the features of the proposed problem.

致 謝 I
摘 要 II
Abstract III
TABLE OF CONTENTS IV
LIST OF FIGURES V
LIST OF TABLES VI
Chapter 1. Introduction 1
Investigate background and motive 1
1.2 Investigate objective 2
1.3 Investigate scope and restriction 3
1.4 Investigate method and procedure 4
Chapter 2. Literature review 5
Chapter 3. Description of the model environments 7
Chapter 4. Profit per Unit Time Model 9
4.1 Mathematical Formulation 9
4.2 Solution Procedure 11
4.3 An illustrative numerical example and sensitivity analysis 14
Chapter 5. Return on Inventory Investment Model 17
5.1 Mathematical Formulation 17
5.2 Solution Procedure 19
5.3 An illustrative numerical example and sensitivity analysis 22
Chapter 6. Concluding Remarks 25
References 26
Appendix A 28
Appendix B 31
Appendix C 31
Appendix D 32
Appendix E 35
Appendix F 36

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