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 37 for “"Flow Shop"”.
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Stochastic flow shop scheduling
… we present new results for the makespan and the flowtime in a flow shop without intermediate storage between machines. We consider m machines and n jobs with random processing times. Since there is no intermediate storage between machines, a job which has finished processing at one machine may …
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Stochastic flow shop scheduling
… new results for minimizing the makespan in a flow shop with zero storage between machines. Makespan is the total length of time required to process a set of jobs. We consider m machines and n jobs with random processing times. Since there is no intermediate storage between machines, a job that …
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A critical analysis of flow-shop sequencing
Not available
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Flow Shop Scheduling for Energy Efficient Manufacturing
… consumption. Thus, this thesis investigates the flow shop scheduling problems that reduce electricity costs under time-varying electricity rate.</p> <p>A time-indexed integer programming is proposed to identify the manufacturing schedules that minimize the electricity cost for a single factory …
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Flow Shop Scheduling for Energy Efficient Manufacturing
… consumption. Thus, this thesis investigates the flow shop scheduling problems that reduce electricity costs under time-varying electricity rate.</p> <p>A time-indexed integer programming is proposed to identify the manufacturing schedules that minimize the electricity cost for a single factory …
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Production scheduling in a campaign based flexible flow shop
In today’s manufacturing environment, where the competition is constantly increasing, there is increased pressure to reduce the production cost and therefore good scheduling approaches become more important. The aim of this research is to improve the production scheduling process at a …
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Hybrid flow shop scheduling with prescription constraints on jobs
… process can be modeled as a two-stage hybrid flow shop problem with specific constraints, particularly prescription constraints on the jobs. This thesis restates the practical problem as a scheduling problem by doing hypotheses and restrictions. Then, it designs a mathematical model based on …
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An analysis tableau and algorithm for flow-shop makespan minimization
An analysis tableau suitable for investigating flow-shop attributes is presented in detail 1. Geometric properties, inherent within the tableau, are employed using graph theory concepts in developing a heuristic algorithm for makespan minimization. Computer implementation of this algorithm revealed …
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Increasing the capacity of a flow shop : technical and organizational issues
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, Sloan School of Management; in conjunction with the Leaders for Manufacturing Program at MIT, 2001.
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Flow Shop Sequencing With Unequal Ready Times to Minimize Mean Flow Time
Made available in DSpace on 2014-12-13T19:55:31Z (GMT). No. of bitstreams: 1 7915337.pdf: 4561714 bytes, checksum: 1d16fc34b5f5bc98b133364e7128a789 (MD5) Previous issue date: 1979
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Lot streaming in a two-stage assembly system and a hybrid flow shop
… two-stage assembly system and a two-stage hybrid flow shop in order to improve system performance. Lot streaming accelerates the flow of a production lot through a production process by splitting it into sublots, and then, processing these sublots in an overlapping fashion over the machines, …
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Optimal and heuristic solutions for the single and multiple batch flow shop lot streaming problems with equal sublots
… solutions to various problems that arise in the flow-shop environments which utilize lot-streaming. Lot streaming is a commonly used process of splitting production lots into sublots and, then, of scheduling the sublots in an overlapping fashion on the machines, so as to expedite the progress of …
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A water flow algorithm for optimization problems
… natured-inspired algorithm, called the water flow algorithm (WFA), for solving optimization problems has been proposed. The algorithm is designed by simulating the hydrological cycle in meteorology and the erosion phenomenon in nature. Basic operators of this algorithm are based on the …
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SIMEX: A simulation-based expert production scheduling system.
… by the author for applications in flexible flow shop systems in a dynamic factory environment. This study introduces the general framework of SIMEX. A prototype is developed on an IBM compatible PC in Prolog, MODSIM II, Visual Basic, and Visual C++ to generate feasible and acceptable …
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Modeling, Analysis, and Algorithmic Development of Some Scheduling and Logistics Problems Arising in Biomass Supply Chain, Hybrid Flow Shops, and Assembly Job Shops
… problems, Biomass Logistics Problem, Hybrid Flow Shop Scheduling Problem, and Stochastic Demand Assembly Job Scheduling Problem. The Biomass Logistics Problem is a strategic cost analysis for setup and operation of a biomass supply chain network that is aimed at the production of ethanol from …
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End-to-end scheduling to meet deadlines in distributed systems
… end-to-end scheduling problem is known as the flow-shop problem. We present several cases where the problem is tractable and evaluate two heuristic algorithms for the NP-hard general case. We generalize the traditional flow-shop model in two directions. First, we present two algorithms for …
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Diseño y desarrollo de estructuras de planificación eficientes a través de técnicas de simulación y optimización aplicables a entornos productivos complejos
… secuenciamiento en entornos productivos del tipo flow shop en los que se retira la condición de ordenamientos permutativos. Este tipo de problemas se encuentran inmersos dentro de los sistemas de Planificación y Control de la Producción que dan soporte en la toma de decisiones a las organizaciones …
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Lot streaming and batch scheduling: splitting and grouping jobs to improve production efficiency
… sublot sizes and a job sequence in a two-machine flow shop with transportation and setup times. We introduce a model where the number of sublots for each job is not predetermined, presenting an algorithm to assign a new sublot efficiently, and discuss a heuristic to assign a fixed number of …
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Lot Streaming in Two-Stage Flow Shops and Assembly Systems
… relates to lot streaming in two-stage flow shops and assembly shops. Lot streaming refers to the process of splitting a production lot into sublots, and then, processing the sublots on different machines simultaneously in an overlapping manner. Such a strategy allows finished material …
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