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油压减震器计算机全自动测试系统 被引量:1
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作者 汪励 易曙光 《江苏电器》 2008年第3期54-55,共2页
针对机车油压减震器的性能对于机车安全平稳运行的重要性,介绍了一种计算机控制的机车油压减震器性能测试系统。系统以计算机为核心,采用变频无极调速,闭环转速控制,通过曲柄连杆机构产生正弦激励,实现油压减震器各项性能的测试。其性... 针对机车油压减震器的性能对于机车安全平稳运行的重要性,介绍了一种计算机控制的机车油压减震器性能测试系统。系统以计算机为核心,采用变频无极调速,闭环转速控制,通过曲柄连杆机构产生正弦激励,实现油压减震器各项性能的测试。其性能完全达到了铁道部的标准要求。 展开更多
关键词 机车油压减震器 s-f图 试验速度
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The Hiding Characteristic of F-interior Hiding Image and Its Applications
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作者 邱育锋 任雪芳 陈保会 《Journal of Donghua University(English Edition)》 EI CAS 2010年第2期237-241,共5页
By using function one direction S-rough sets,the concept of F-interior hiding image is presented; the theorem of F-interior hiding and the recognition criteria of interior hiding are proposed; and the applications of ... By using function one direction S-rough sets,the concept of F-interior hiding image is presented; the theorem of F-interior hiding and the recognition criteria of interior hiding are proposed; and the applications of F-interior hiding image are given. F-interior hiding image is a new application area of function S-rough sets,and function S-rough sets is a new theory and new tools for iconology research. 展开更多
关键词 function one direction S-rough sets F-interior hiding image interior hiding theorem interior hiding recognition application
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