نتایج جستجو برای: final assembly schedule
تعداد نتایج: 356786 فیلتر نتایج به سال:
Assembly is the capstone process for product realization where component parts and subassemblies integrated together to form the final products. As product variety increases due to the shift from m production to mass customization, assembly systems must be designed and operated to handle such variety. In this paper we first review the state of the art research in the areas of assembly system de...
Energy-saving scheduling is a well-known issue in the manufacturing system. The flexibility of workshop increases difficulty scheduling. In schedule, considering collaborative optimization multi-level structure product production and energy consumption has certain practical significance. process sequence parts components should be consistent with assembly sequence. Additionally, non-production ...
The study of species coexistence and community assembly has been a hot topic in ecology for decades. Disentangling the hierarchical role of abiotic and biotic filters is crucial to understand community assembly processes. The most critical environmental factor in semi-arid environments is known to be water availability, and perennials are usually described as nurses that create milder local con...
The technology of DNA self-assembly has played an important role in the field of DNA computing and nanotechnology. Many small-scaled NP complete problems can be solved by self-assembly model. In this paper, we based on the addition of two numbers, and proposed the addition of two matrices of DNA Tile self-assembly model. The algorithm can be applied to add two elements in the corresponding posi...
We present a new algorithm for wavelength division multiplexing (WDM) star optical networks. The resulting protocol is pre-transmission coordination-based without packet collisions. The proposed algorithm tries to schedule the transmission requests of the network, with the assistant of a prediction mechanism. With the prediction of the packet requests the algorithm manages to decrease the calcu...
This paper proposes a formal method for including time dependence into Earned Value (EV) management. The model requires three parameters, which map directly to the fundamental “triple constraint” of scope, cost, and schedule: the reject rate of activities, the cost overrun parameter, and the time to repair the rejected activities. Time dependent expressions for the planned value, earned value, ...
Hospital wards need to be staffed by nurses round the clock, resulting in irregular working hours for many nurses. Over the years, the nurses' influence on the scheduling has been increased in order to improve their working conditions. In Sweden it is common to apply a kind of self-scheduling where each nurse individually proposes a schedule, and then the final schedule is determined through in...
The Korea Superconducting Tokamak Advanced Research (KSTAR) device site assembly was completed by May 2007. During the assembly period, several key technologies were developed to assemble the superconducting tokamak and its ancillary systems. As will be described in this paper, we encountered several problems and difficulties that mainly stemmed from the uniqueness of the superconducting tokama...
One of the main issues on task planning of the enterprises with several production sites is how they can reassign tasks when a part of the supply chain is stopped. In this case, a good re-schedule, involving parts from supply chains from other sites, could imply to reduce overall costs. In this paper, we propose a cooperative system to re-schedule a network chain. The algorithm proposed is desc...
A Hybrid Forward/backward Approach for Single Batch Scheduling Problems with Non-identical Job Sizes
This paper considers the single batch scheduling problem with different release times and non-identical job sizes and the objective is to minimize the makespan. A mixed integer programming (MIP) model is developed to describe the complexity of the problem and then a hybrid forward/backward algorithm (HFBA) is developed by moving blocks within an initial schedule to improve the solution quality....
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