薄膜铁氧体结环行器的等效场理论

假设薄膜伯氧体结环行器中是ＴＥＭ波传输，我国采用一种新的等效场理论，得出其中的Ｓ参量和损耗。当Ｙ结环行器中的铁氧体片厚度小于２００μｍ时，其导体损耗大于介电损耗和磁损耗。     

采场结构尺寸优化及采场稳定性分析

本文利用数值分析方法对铜录山矿露天和地下联合开采的矿岩稳定性进行了研究，并对地下采场结构尺寸进行了优化，为安全、高效地回采地下矿产资源提供了有力保证。     

NUMERICAL ANALYSIS AND EXPERI- MENT OF UNSTEADY THERMAL FIELD OF ROTOR PLATE FOR EDDY CURRENT RETARDER

The physical model based on heat transfer theory and virtual boundary method for analyzing unsteady thermal field of rotor plate for eddy current retarder used in automobile is established and boundary conditions are also defined. The finite element governing equation is derived by Galerkin method. The time differential item is discrete based on Galerkin format that is stable at any condition. And a new style of varying time step method is used in iteration process. The thermal field on the rotor plate at the radial and axle directions is analyzed and varying temperature at appointed points on two side-surfaces is measured. The testing and analytical data are uniform approximately. Finite element method can be used for estimating thermal field of the rotor plate at initial design stage of eddy current retarder.     

进口氧化锌避雷器试验标准初探

本文从分析氧化锌避雷器原理、结构人手．通过与国产同类设备厂家规定值及试验值进行比较，在取得一定数量试验值的情况下．初步确定试验标准U1mA的值，并以此为依据，对试验结果进行判断，取得较好的效果。     

STE—2反场箍缩极向偏滤器实验的首批结果

已在有一个外偏滤器室的放电容器中产生了有单极向零的反场箍缩。在目前的实验中没有装上导电壳。极向偏滤器位形维持的时间为壁的时间常数，在磁起伏中ｍ＝１撕裂模的优势不受偏滤器位形的影响。采用偏滤器位形和在偏滤器电流达到主等离子体电流的３０％的情况下，极向偏滤器都没有引起对等离子体性能的有害效应。     

论露天矿高陡边坡挖替

率证了露天矿边坡挖潜的意义、内容、原则及依据；以尖山采场边坡探潜为工程实例，介绍了边坡探潜方法及开采境界方案的选择；分析了边坡挖替的工程效果与经济效益；在此基础上，提出了生产中保证边坡稳定的技术组织措施。