Origination and Elimination of the Surface Flow Lines Crack of Investment Stainless Steel Castings;
不锈钢熔模铸件表面流纹的产生及防止
Geochemistry and petrogenesis of the Tertiary rhyolite from the Boyang area,northeastern margin of the Qinghai-Tibet plateau;
青藏高原东北缘伯阳地区第三系流纹岩地球化学及岩石成因
The prismatic joint characteristics of the Mesozoic rhyolite of the Shanmen, Siping, Jilin Province and its origin significance;
The geologic features of the early Cretaceous rhyolite inthe Shanmen area,Siping,Jilin province;
吉林省四平山门早白垩世流纹岩地质特征
The ore deposit was surrounded by fractures of NE and NW directions,and generically relat-ed to rhyolite porphyry,The early alterations are mainly of K-feldsparization and biotitiza-tion,and the laters are mainly of silication,sericitization and propylitization.
成矿主要与流纹斑岩有关。
Applying the reverse coupling inductor to the interlock parallel Boost-converter,we analyze the influences of the coupling coefficients of inductor to the current ripple and the dynamic response of the interlock parallel Boost-converter,and provide the design method for the integrated reverse coupling inductor.
将反向耦合电感应用于交错并联Boost变换器,分析了耦合电感的耦合系数对交错并联Boost变换器电流纹波和动态响应的影响,给出了反向耦合电感集成磁件的设计方法,并作了仿真及实验研究。
Different from conventional two-level PWM switching power amplifier, the switching power amplifier can achieve current ripple reduction.
传统两电平脉宽调制电磁轴承开关功放的电流纹波较大,导致电磁轴承中产生的纹波损耗较大。
With high conversion ratio, the interleaved Boost converter operates at a very large duty cycle , which leads to large current ripple and poor efficiency.
在交错并联Boost变换器中,当变换比高时,由于电路占空比较大,电流纹波会比较大,从而影响变换效率。