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山西省行政干部学校自从1953年8月开办文化班以來,先后已有六个班,共289名学員达到初中和高小畢業水平。其中有兩个班,共92名学員由高小畢業程度,已經达到初中畢業水平;有四个班197名学員由文盲、半文盲和初小畢業程度,已分別达到高小畢業和初中畢業水平。学員文化水平的提高,对于学習政治理論提供了有利条件,有的同学說:“过去我看政治經济学,对于商品价值与劳动生產率成反此例是什么道理鬧不通,学过比例就很清楚了。”在学員認識能力和思想方法上也有了很大的提高,大家体会到,分析问題必須有理論根据,推理、判断必須要合乎邏輯,不能随便下結論。不少学員改变了“拿不动 相似文献
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A unity transformation model (UTM) was presented for flexible NC machining of spiral bevel gears and hypoid gears. The model can support various machining methods for Gleason spiral bevel gears and hypoid gears, including generation machining and formation machining for wheel or pinion on a universal five-axis machining center, and then directly produce NC codes for the selected machining method. Wheel machining and pinion machining under UTM were simulated in Vericut 6.0 and tested on a five-axis machining center TDNC-W2000 with NC unit TDNC-H8. The results from simulation and real-cut verify the feasibility of gear machining under UTM as well as the correctness of NC codes. 相似文献
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To evaluate the operation comfortability in the master-slave robotic minimally invasive surgery (MIS), an optimal function was built with two operation comfortability decided indices, i.e., the center distance and volume contact ratio. Two verifying experiments on Phantom Desktop and MicroHand S were conducted. Experimental results show that the operation effect at the optimal relative location is better than that at the random location, which means that the optimal function constructed in this paper is effective in optimizing the operation comfortability. 相似文献
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A unity transformation model (UTM) was presented for flexible NC machining of spiral bevel gears and hypoid gears. The model can support various machining methods for Gleason spiral bevel gears and hypoid gears, including generation machining and formation machining for wheel or pinion on a universal five-axis machining center, and then directly produce NC codes for the selected machining method. Wheel machining and pinion machining under UTM were simulated in Vericut 6.0 and tested on a five-axis machining... 相似文献
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