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三角形底盘筒形件复合模
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作者 甄瑞麟 《制造技术与机床》 CSCD 北大核心 2006年第5期36-37,39,共3页
对三角形底盘筒形件的成形工艺进行了分析,决定采用弯曲、拉深、胀形复合模等进行复合成形。介绍了复合模的结构、特点及工作过程。经生产验证该模具结构合理、生产效率高,有很好的技术经济效益。
关键词 三角形筒件 不同行程 弯曲 拉深 胀形 复合模
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An Improved Model for Computing-Intensive Tasks on Heterogeneous Workstations
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作者 邬延辉 陆鑫达 《Journal of Shanghai Jiaotong university(Science)》 EI 2004年第2期6-9,15,共5页
An improved algorithm, which solves cooperative concurrent computing tasks using the idle cycles of a number of high performance heterogeneous workstations interconnected through a high-speed network, was proposed. In... An improved algorithm, which solves cooperative concurrent computing tasks using the idle cycles of a number of high performance heterogeneous workstations interconnected through a high-speed network, was proposed. In order to get better parallel computation performance, this paper gave a model and an algorithm of task scheduling among heterogeneous workstations, in which the costs of loading data, computing, communication and collecting results are considered. Using this efficient algorithm, an optimal subset of heterogeneous workstations with the shortest parallel executing time of tasks can be selected. 展开更多
关键词 HETEROGENEOUS parallel computing cooperative concurrent computing scheduling
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