highfrequency

The paper emphasized on switching power circuit design and highfrequency transformer design .

本文重点论述了开关电源的电路设计及高频变压器的设计，并给出实际纹波波形。

Research on Control Technology of Highfrequency Serial Resonant Inverter

高频串联型逆变器控制技术研究

The most highfrequency of theoretical training and skills training time is once a month .

理论和操作培训时间以每月一次出现频次最高。

Numerical calculation of multiple scattering of highfrequency electromagnetic wave

高频电磁波多次散射的数值求解

Mathematic Analysis and Parameters Definition of Circuit of HighFrequency Oscillator for Arc Ignition

引弧用高频振荡器电路的数学分析及参数的确定

Discussion on Twice Highfrequency Hardening Process of Ferrite Ductile Iron

铁素体球铁二次高频淬火技术的探讨

Simulated Research on Highfrequency DC / DC Converter

高频直流变换器的仿真研究

Highfrequency induction initiating system with safety sliding primer

安全滑放体高频感应起爆系统

Design of Highfrequency Transformer for Synchronous Motor Exciter

同步电机励磁电源高频变压器的设计

The increase in the number of base stripes and the length of stripe can also reduce highfrequency noise .

增加基极条数、增加条长也可减少基极电阻，降低高频噪声。

Voltage and Current Control of Xrays Bulb Tubes in Highfrequency Xrays Machine

高频X光机中X线球管的电压与电流控制

A method using highfrequency infrared is deveolped for determination of sulfur in ferrosilicon .

应用高频红外碳硫仪，建立了硅铁中硫的测定方法。

The high-pass filters were designed to eliminate effectively the highfrequency harmonics produced by APF .

设计出能有效消除APF产生的高次谐波的高通滤波器。

The use of PWM modulation technology will cause highfrequency common-mode voltage inevitably , which would be very dangerous to the electrical equipment .

而PWM调制技术的应用不可避免地会产生高频共模电压，对电气设备的运行会产生相当大的危害。

The impact of ventrolateral thalamotomy on highfrequency components of tremor

丘脑腹外侧核切开术对震颤高频分量的影响

Flood is a kind of devastating natural disaster . Its suddenness , wide influence and highfrequency always results in extensive losses of lives and properties .

洪涝灾害是一种影响范围广、发生频率高、损失金额大、突发性强的自然灾害，给人民的生命和财产带来了巨大的威胁。

The simulative study based on DM equivalent circuit analysis shows that , the mutual inductance coupling between equivalent parasitic parameters does improve the highfrequency performance of EMI filters .

在分析带有寄生参数的差模等效电路的基础上，进行了仿真研究。结果表明，利用寄生参数的互感耦合使得EMI电源滤波器的高频性能有所改善。

The controller of highfrequency fatigue is used to control the highfrequency fatigue tester according to the intention of users , and it acts as a link of tester and user .

而高频疲劳试验机控制器则是用来控制试验机按用户意图进行工作，充当了用户与试验机之间的桥梁。

In the cases with the block of lower lacrimal passage , the cure rate was 83.11 % in Nd : YAG group and 86.11 % in highfrequency electric cautery group .

A组治疗下泪道阻塞有效率83.11%，与B组的86.11%（P>0.05）。

Highfrequency plasma and laser supported combustion wave induced by it are the main reasons for amorphous structure of ultrafine Co powder . The particle size distribution band widens as the plasma current increases .

高频等离子弧及其诱发的激光支持燃烧波对于获得非晶结构起关键性的作用.粉末粒度的分布则与棒料转速、等离子弧电流强度以及等离子枪与棒料端部的距离等工艺参数有关。

Results Highfrequency ultrasound could be shown pyloric modality.In20 cases , the diagnostic accuracy rate of ultrasound was100 % , and the diagnostic accuracy rate of Xray was55 % .

结果高频超声可清晰的显示幽门的增厚程度，20例先天性肥厚性幽门狭窄超声诊断确诊率100%，X线片诊断确诊率55%。

Three-component determination results show that the vibration direction of highfrequency disturbing wave is close to the horizontal plane and the vibration along x and y direction is much larger than that along z direction .

并且通过三分量的测定说明：高频干扰波的振动方向主要是接近于在水平面内。X及Y方向的振动远大于Z（垂直）方向。

We bring forward a new narrow band signal detection algorithm based on the analysis of CNR ( carrier noise ratio ) of uplink in UHF ( ultra highfrequency ) band and make theory deduce together with algorithm simulation .

在分析UHF频段卫星上行链路载噪比的基础上，提出了一种窄带信号检测算法，并对算法进行了理论推导和算法仿真；

GaAs / GaAsSb metamorphic HBTs ( MM HBTs ) have great potential applications because they have both the relative low cost of GaAs-based and highfrequency of InP-based HBT .

GaAs/GaAsSbHBT（MMHBT）由于兼备GaAs的相对低成本和InPHBT的高频等优点，有着广泛的应用前景。

The corrosion fatigue properties of Cu-alloys used for propellers were studied by observations of crack propagation on small size specimens in low-stress , highfrequency fatigue tests which simulate the stress and working conditions of actual ship propellers .

本文模拟船用螺旋桨的受力状态及工作环境，采用小试样，低应力高周疲劳试验进行裂纹扩展观察，来研究螺旋浆铜合金材料的腐蚀疲劳性能。

In terms of concept of radio highfrequency antenna impedance matching and analyzing design of energy converter of the brain disease curing device , a engineering method of designing the supersonic-wave power output transducer are given and precautions are shown finally in this paper .

本文借助无线电高频天线阻抗匹配的概念，通过对脑病治疗机换能器设计的分析讨论，给出了超声波功率输出换能器工程设计的方法及应注意的几个问题。

In this experiment , it was proved that ultrasonic extraction method raise the yield of total saponins of Gynostemma . The optimum extraction conditions included : ultrasonic highfrequency extraction for 3 times , 80 min per time . The yield is to be 1 . 226 % .

本实验证明，超声法可以提高绞股蓝总皂甙的提取率，最佳提取工艺为超声高频提取3次，每次80min，得率为1.226%。