نتایج جستجو برای: two stage assembly flow shop problem

تعداد نتایج: 3779582  

Journal: :ژورنال بین المللی پژوهش عملیاتی 0
m. jannatipour b. shirazi i. mahdavi

this paper investigates the problem of just-in-time permutation flow shop scheduling with limited buffers and linear job deterioration in an uncertain environment. the fuzzy set theory is applied to describe this situation. a novel mixed-integer nonlinear program is presented to minimize the weighted sum of fuzzy earliness and tardiness penalties. due to the computational complexities, the prop...

Journal: :روش های عددی در مهندسی (استقلال) 0
عزیزاله معماریانی و قاسم مصلحی a. memariani g. moslehi

flow shop sequencing problem is included in np-hard problems and a number of heuristic methods have been developed to solve it. most of these methods are offered for the crisp processing time. however fuzzy algorithm is appropriate for the problems with fuzzy processing time. this paper presents a method in which an algorithm is used to minimize make span of flow shop with fuzzy processing time...

Journal: :Annals of Operations Research 2023

Abstract System-wide optimization of distributed manufacturing operations enables process improvement beyond the standalone and individual optimality norms. This study addresses production planning a system consisting three stages: parts (subcomponents), assembly components in Original Equipment Manufacturer (OEM) factories, final products at product manufacturer’s factory. Distributed Three St...

Journal: :Symmetry 2023

The distributed assembly scheduling problem with a hybrid-flow shop for fabrication is seldom studied, and some real-life constraints such as factory eligibility are handled. In this study, shop-scheduling (DAHFSP) investigated, which has symmetries on machines. A shuffled frog-leaping algorithm cooperations (CSFLA) applied to minimize makespan. problem-related feature used. Memeplexes evaluate...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده فنی و مهندسی 1387

abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...

Journal: :Computers & Industrial Engineering 2009
T. C. Wong Felix T. S. Chan L. Y. Chan

To ensure effective shop floor production, it is vital to consider the capital investment. Among most of the operational costs, resource must be one of the critical cost components. Since each operation consumes resources, the determination of resource level is surely a strategic decision. For the first time, the application of Lot Streaming (LS) technique is extended to a Resource-Constrained ...

A three stage production system is considered in this paper. There are two stages to fabricate and ready the parts and an assembly stage to assembly the parts and complete the products in this system. Suppose that a number of products of different kinds are ordered. Each product is assembled with a set of several parts. At first the parts are produced in the first stage with parallel machines a...

Journal: :IJDSST 2015
Latifa Dekhici Khaled Belkadi

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2008
R. Tavakkoli-Moghaddam Hossein Mirzaei

A frequently occurring operational problem is one of processing a given number of jobs (commodities) on a specified number of machines (facilities) referred to by various investigators as scheduling, dispatching, sequencing, or combinations thereof (Gupta and Stafford, 2006). In most manufacturing environments, a set of processes is needed to be serially performed in several stages before a job...

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