| 1. | With the network of fault recorded data accomplished , the management and analysis of frd are very necessary
随着故障录波信息联网的完成，对录波数据的管理和录波数据的分析显得非常必要。 |
| 2. | The frd is designed as a new piston - type constant - friction - force damper , which dissipates energy efficiently and can be used in practical project expediently
本文设计加工的活塞式常摩擦力阻尼器耗能明显，且能方便地运用于实际工程。 |
| 3. | The local pt diffusion is formed by the pt gettering by the hole defection deduced by hydrogen irradiation . the irradiation energy and dose definite the axial position and dose of the local pt diffusion respectively
本课题研究提出了新型的局域铂掺杂技术和电子辐照技术相结合的寿命控制技术,以期改善frd的综合性能。 |
| 4. | There are 12 federal reserve districts ( frd ) in us with one federal reserve bank per district . to coordinate 12 frd ' s business , federal reserve board ( frb ) was established in us capital - washington
在美国有12个联邦储备区，每个区都设有一个联邦储备银行。为协调这12个联储银行的业务活动，在首都华盛顿建立了联邦储备委员会。 |
| 5. | Then , the factors which cause the r . c . special - shaped column frame to strongly destroy are given . the finite element modals of ved , frd and f - ved are established whose hysteretic curves are obtained by analyzing their dynamical performance
本文建立了ved 、 frd和f - ved的有限元模型，对三种模型进行了动力特性分析，得到了各自的力-位移滞回曲线。 |
| 6. | And tag algorithm is given here to implement tag model ; ( 2 ) based on above work , this paper also provides frd algorithm by using tag algorithm . frd algorithm uses semi - join program , in order to find a full reducer
本文正是基于这样的出发点，提出在数据库中使用数据压缩技术，从而减少通讯代价； ( 2 )在数据压缩的研究工作基础上，提出frd算法，嵌入了tag算法。 |
| 7. | Power fast recovery diode , which is abbreviated to frd , is one of the key devices in modern power electronic technology . in the power electronic circuits , frd is usually parallel connected with three - end power devices as their freewheeling diode
高压功率快恢复二极管(以下简称frd )广泛地应用于电力电子电路中,作为续流二极管与三端功率器件并联使用,是现代电力电子技术中的关键器件。 |
| 8. | And the local lifetime controlling technology gains more attention because it ’ s advantage of axial local diffusion . to improve the frd ’ s general performance , this study proposal a novel technology combing the local pt diffusion and electronic irradiation
在利用寿命控制技术减小frd反向恢复时间的研究中,局域寿命控制技术以其良好的轴向局域掺杂优势(相对于整体寿命控制技术)备受关注。 |
| 9. | A lot of works has been done to reduce the reverse recovery time and improve the general performance in the international power devices ’ research field . they focus on the design of device structure and lifetime controlling technologies
围绕着如何减下frd的反向恢复时间、提高综合性能,国际功率半导体器件领域进行了广泛的探讨,热点集中在了器件结构设计和寿命控制等技术上,其中又以寿命控制技术为为主要焦点。 |
| 10. | And the impact of every parameters of f - ved element , stiffness coefficient and damper coefficient of ved element , normal stiffness , tangent stiffness and sliding friction of frd element and the cross - section area of the brace on the capability of dissipating vibration energy is computed and analyzed
并对f - ved单元中ved单元的刚度系数、阻尼系数、 frd的法向刚度、切向刚度、滑动摩擦力及支撑横截面面积等参数对单元阻尼效果的影响进行了分析研究。 |
