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机械能守恒定律常见“陷阱”归类 被引量:3
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作者 严俊 《物理教学探讨(中学教学教研版)》 2009年第6期51-52,共2页
本文通过对五道简单、常见却又能说明问题实质的例题的分析和总结,对机械能守恒定律解题的典型错误进行归因归类。
关键词 “陷阱”归类 圆周运动 速度分解 过程“突变”
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An Extended Birth-Death Processes with Catastrophes——Stochastically Monotone, Feller and Symmetric Properties
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作者 吴群英 《Chinese Quarterly Journal of Mathematics》 CSCD 2002年第2期36-42,共7页
A new structure with the special property that catastrophes is imposed to ordinary Birth_Death processes is considered. The necessary and sufficient conditions of stochastically monotone, Feller and symmetric properti... A new structure with the special property that catastrophes is imposed to ordinary Birth_Death processes is considered. The necessary and sufficient conditions of stochastically monotone, Feller and symmetric properties for the extended birth_death processes with catastrophes are obtained. 展开更多
关键词 extended birth_death process Q _process stochastic monotonicity Feller property symmetric property
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