Calculating the distribution of losses in stator strands based on the eddy current distribution coefficient method . it shows that results from this method and the traditional method are nearly same . so , the average method can be applied to calculate the temperature field 研究结果表明,采用涡流分布系数法和传统所采用平均法计算损耗进而得到的温度场真实分布基本相同,可在工程中采用更为简便的涡流平均法计算损耗和温度场。
Using the sandwich current collector , which has a dense sic interlayer between the two reticulated sic , the current distribution and voltage loss in positive grid were improved , which resulted in the significant enhancement of the utilization efficiency of pam and the ability of discharging with large current 集流体的“三明治”结构改善了极板内的电流分布,降低了电压降,明显提高了铅酸蓄电池活性物质的利用率和大电流放电的能力。
This thesis focus on liebao motors current distribution modes and analyses the problems that lies within . a new distribution model is proposed detailing the factors and characteristics of the model . a " subsidiary + franchise " program is proposed incorporating information management 本文从猎豹汽车公司目前正在运行的分销模式现状出发,详细分析了现行的猎豹汽车公司分销模式所存在的问题和面临的新形势,指出了分销渠道模式创新和变革的必要性。
Based on the activex technology , electric component menus and toolbars are created in this paper , with which a net wiring diagram for power electronics system is drawn . take advantage of autocad events , it is easy to fully carry out the consistency between graphics and data , from which users can manage databases and visual operation on graphics . the graphics about short - circuit current distribution and protection coupling are auto - drawn by using the autocad entity and text objects 本文采用activex技术,创建电气元件菜单和工具栏,方便用户绘制电力系统网络接线图;利用autocad事件,实现图形数据的一体化,从而可以使用户在图形上操作和管理数据库以及计算的可视化操作;利用autocad的图形和文本对象来自动绘制短路电流分布图和保护整定图。
Its current distribution and frequency confirms anthropological and archaeological evidence that the original population of modern humans lived in africa and that a small subgroup of those africans emerged about 75 , 000 years ago and spread across five other continents ? the out of africa hypothesis 从它目前的分布情形和频率来看,支持了考古学和人类学的证据:最原始的现代人类居住在非洲,大约在7万5000年前,有一小群非洲人向其他五大洲扩散,也就是所谓远离非洲假说。