排序方式: 共有8条查询结果,搜索用时 15 毫秒
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给出了一种在DOS环境下实现多任务切换的方法,基于线索的方法创建一个多任务管理器,它可以同时运行多个任务,从而提高系统运行的效率。 相似文献
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考勤和问卷调查是掌握学生学习态度和状况的有效方法,叙述一种理论课考勤和问卷调查分析系统的问卷设计、信息识别以及数据存储和统计的方法。 相似文献
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Tendency of homogeneous radial deformation during electromagnetic compression of aluminium tube 总被引:1,自引:0,他引:1
Electromagnetic forming is one of the high-rate forming methods that can be extensively used to form and join axisymmetric metal sheet and tube. Tendency of homogeneous radial deformation during electromagnetic compression of aluminium tube was investigated through the design optimization method based on sequential coupling numerical simulation and experiments. The results show that the tendency depends on the length ratio of tube to coil (R), which has a critical value (Rc) corresponding to the relatively ... 相似文献
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