最新进展

1、nts in Automotive Differential Design Athanassios Mihailidis and Ioannis Nerantzis Abstract The current paper consists of two main parts: In the first, the evolution of passenger car differentials during the past twenty years of automotive design is presented. A short description on the features and principle of operation of each device is given. In the second part, a recent advance in differential design is presented. It is a newly developed differential, designed to actively control the distr。

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3、ustry, has been widely used. The use of different performance of the bevel gears are also different quality requirements, can be summarized including: a good contact area, can be a reliable torque transmission power； good match geometry, a smooth transfer of the movement, in order to ensure uniform load , transmission smooth, vibration small, noise low. Factories are usually small devices and dual-spot detection of rolling contact tester to control the quality of bevel gear, bu。

4、gt; 中文 5821 字     英  文  翻  译     题        目 : Recent advances in permanent    magnet brushless DC motors       专   业   班   级 :           学   &。

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6、gt;中文 5340字  差分演化的最新进展：一项调查和实验分析  摘要   差分演化是一种简单而有效的优化 ,尤其是持续优化。
因此差分演化经常用于解决各种工程问题。
另一方面 ,差分演化结构在搜索逻辑中有一些限制 ,因为它包含了一套有局限的探索方法。
这一事实启发许多计算机科学家通过提出对原始算法的修改来改善差分演化。
本文介绍了差分演化最近的进展概况。
这里提出了差分演化的一个分类，分成两大组：（ 1）在差分演化结构中集成附加组件的算法。
（ 2）采用修改过的差分演化结构的算法。
对于每个宏组 ,四个算法代表差分演化中最先进的部分，已经被选 来深入描述它们的工作原理。
为了比较他们的性能 ,这八个算法已被用来测试一组基准问题。
实验在一个相对低维情况下和一个相对高维的情况下重复进行。
这篇论文也突出了最近提出的差分演化算法的工作原理，它们之间的相同点和不同点等。
尽管在这两个宏组中尚不清楚是否有一个相对于其他。

7、 gezaece.concordia.ca Abstract. Static var compensators have been, for many years, an essential co mponent in the operation of power transmission systems. They are part of a fam- ily of devices known as Flexible AC Transmission System (FACTS) devices. The advent of large capacity force-commutated semiconductor switches allows many developments in power electronic converters to be applied to the implem- entation of high power compensators. This paper describes the principles of 。

8、of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, P. R. China Huangpi Campus, Air Force Radar Academy, Wuhan 430019, P. R. China 外文翻译原文及译文 2 Abstract Mechanical equipments are widely used in various industrial applications. Generally working in severe conditions, mechanical equipments are subjected to progressive deterioration of their state. The mechanical failures account for more than 60% of breakdowns of the system. Therefore, the identi。