In several industries, remanufacturing is an important ingredient of the manufacturing strategy. In a typical remanufacturing site, a job shop is responsible for the disassembly of used machines to obtain parts that will be repaired, or whatever operation is necessary to make it perform and look like new. This paper deals with the value of information in this environment. We compare different s...

Hybrid flow-shop or flexible flow shop problems have remained subject of intensive research over several years. Hybrid flow-shop problems overcome one of the limitations of the classical flow-shop model by allowing parallel processors at each stage of task processing. In many papers the assumptions are generally made that there is unlimited storage available between stages and the setup times a...

This paper presents a deadlock avoidance scheme that was developed during the Mascada Project—Esprit LTR Project 22728. The deadlock problem occurs in a car body painting shop. From this application, an abstract problem was derived for which a deadlock avoidance method was developed. The paper presents the deadlock avoidance scheme and its correctness proof. In addition, implementation issues a...

The flexibility present in a job shop is an important determinant of the future success of the shop, since it increases the ability to deal with the changes a job shop is faced with in a dynamic environment. The presence of idle-time in a job shop schedule contributes considerably to this flexibility. By introducing an anticipation factor that preserves idletime in the scheduling process more f...

<p>Western beauty standards have dominated the perception of Indonesians for so long. It is mentioned that beautiful women should smooth white skin, pointy noses, tall bodies, and straight hair. This view has also been guideline product manufacturers in producing advertising their cosmetics. Therefore, conventional cosmetics models are usually skinned wide eyes, study aims to describe how...

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We develop a search-theoretic model of the product market that generates price dispersion across and within stores. Buyers differ with respect to their ability to shop around, both at different stores and at different times. The fact that some buyers can shop from only one seller while others can shop from multiple sellers causes price dispersion across stores. The fact that the buyers who can ...

摘要 現場管制系統是ERP的主要子系統之一, 其主要功能是安排現場訂單的排程. 根據研 究,大部分現場的排程問題是屬於 Job Shop問 題. 所以過去幾十年來 Job Shop問題一直是 產業界與學術界重要的研究課題之一. 其間 雖有無數的論文發表, 但因缺少考慮現場實際 的狀況, 很少研究的成果可以用來解決現場的 排程問題. 本研究開發以 Tabu Search為主的 排程方法. 經以個人在美國工作現場所使用之 MRP II 系統所產生的資料驗證, 本方法確能 有效求解現場的排程問題. 關鍵字: Job Shop, Tabu Search Abstract Shop floor control system is a sub-system of the ERP system. Its major function is to generate daily schedules f...

There is virtually no information in the literature about the exposure levels needed to induce hypersensitivity pneumonitis (HP) by diisocyanates. The present study reports a case of occupational HP due to diisocyanates after low-level exposure. A 53-yr-old female never-smoker developed progressive shortness of breath on exertion, cough, fatigue and flu-like symptoms shortly after she began wor...