Continuous resistive loading is used to extend antenna operating band in order to realize traveling-wave current distribution on a finite length antenna.
在有限长的偶极天线上,采用分布电阻加载法,实现行波电流分布,展宽天线的工作频带。
Traveling-wave interaction and secondary magnetic field is generated electromagnetic force, which is a straight line to run the basic principles of electric motors.
行波磁场与次级相互作用便产生电磁推力,这就是直线电动机运行的基本原理。
In traveling-wave fault locating, the traditional data acquisition system can not record the fast-changed traveling waves of voltage and current for accurate fault locating.
在行波故障测距中,传统的数据采集系统无法适应采集高速变化的暂态电压、电流行波的要求,难以实现故障的精确定位。
In the course of the seismic response analysis, considered the influence of the pile-soil interaction, water dynamic effect and traveling-wave effect to the seismic response of the bridge.
在进行地震反应分析过程中,考虑了桩土相互作用、动水作用和行波效应等因素对结构内力和位移反应的影响。
You've got a sound wave traveling merrily along through one medium, when suddenly it hits a different medium, what does gonna happen then?
声波在一种介质中顺畅地传播,突然触及了不同的介质,这时会发生什么?
An optimization method is proposed to improve the reliability of getting the traveling wave head, smoothing both beginning and ending data.
并进一步提出了通过平滑处理故障首尾数据的优化方法提高行波波头提取的可靠性。
The steady solution and its stability of Nonlinear Schrdinger Equation (NLSE) are studied by means of traveling wave transformation and bifurcation theory.
用行波变换方法和分叉理论研究里非线性薛定谔方程的定常解和定常解的稳定性。
In fault location system based on traveling wave, the measurement accuracy of traveling wave velocity influenced the fault location accuracy to a certain extent.
行波故障测距系统中的行波波速测量的准确性在一定程度上影响了行波测距的精度。
Based on the traveling wave, double ended approach only deals with the first transient traveling wave reaching the two buses of the fault line.
基于行波的输电线路双端测距算法只用到到达故障线路两侧母线的第一个故障初始行波波头,其可靠性较高。
It has some significance for designing and testing of traveling wave piezoelectric motors.
这对行波压电电动机的设计和测试具有很重要的意义。
The traveling wave fault location has high reliability accuracy and anti-disturbance capability , and it also immunes from the fault resistance and the neutral grounding modes.
行波测距法具有较高的可靠性和精度,抗干扰能力强,且不受故障电阻及系统运行方式的影响。
According to the company, the large and heavy vacuum tube-based traveling wave tube amplifiers cannot be effectively replaced by GaAs transistors because they a much lower breakdown voltage.
根据公司的消息,真空管将不会被砷化镓晶体管取代。
Because of the current on the shunt reactor, traditional traveling wave differential protection cannot be applied to transmission line with shunt reactor.
由于并联电抗器两侧的电流发生变化,传统的行波差动保护无法应用于带并联电抗器的输电线路。
Traveling wave ultrasonic motor is a new type of actuator driven by friction.
行波超声马达是一种靠摩擦力直接驱动的新型驱动器。
High efficiency and high linearity space traveling wave tube (TWT) is required for satellite communication system as a high power, high gain microwave amplifier.
作为卫星通讯系统所用的高增益、高功率微波放大器件,行波管的效率和线性是非常重要的。
In this paper, control for seismic responses of Bridges under traveling wave excitation is performed using MR Dampers.
本文应用磁流变(MR)阻尼器对桥梁结构在行波激励下的地震反应进行控制。
Based on this, the structure, working principle and fixation of the traveling wave ultrasonic motor are researched.
在此基础上,对所采用的行波型超声波电动机的结构、工作原理及定位进行了研究。
Based on the traveling wave theory, a new method for determining the junction parameters of piping systems is presented.
基于结构振动的行波理论,提出了一种管道联接件物理参数识别的新方法。
An electric contact method to measure contact state of stator and rotor in traveling wave type ultrasonic motor (TWUSM) is presented.
提出了一种直接测量行波超声马达定子和转子接触状态的方法—电接触法。
In this article, dielectric photonic crystals (PhC) with finite dimensions and exposed in air is analyzed for its potential value in traveling wave tubes (TWTs).
针对光子晶体在行波管中的应用,对有限开敞介质光子晶体的模式和带结构进行了分析和计算。
Applying fuzzy predictive control to the speed of rotary traveling wave type of ultrasonic motor was researched.
利用模糊预测控制对旋转型行波超声电机的速度控制进行了研究。
Finally, the planar graphs of the traveling wave equation are simulated by using mathematical software MAPLE.
最后用数学软件Maple对行波方程进行数值模拟,得到纽结波的平面模拟图。
Demonstrates in theory the feasibility of generating the traveling wave used for linear traveling wave ultrasonic motors.
从理论上证明了用于直线型行波超声马达的波形成的可行性。
Vibration and traveling wave stress analysis of rotating bevel gears is performed using annular finite element.
提供了一种使用半解析环形棱柱有限元求解盘形锥齿轮行波振动的方法。
Standing traveling wave boundary condition (STWBC), clear in concept and easy to implement, is a newly proposed absorbing boundary condition.
驻波行波边界条件(STWBC)是一种新近提出的概念清晰、实现简便的吸收边界条件。
By deriving limiting zero point of the equation, some sufficient conditions that guarantee the existence and uniqueness of traveling wave solution of this equation are obtained.
通过讨论方程的极限零点和非极限零点,获得了保证其行波解存在惟一性的充分条件。
Based on the theoretical research and prototype fabrication of traveling wave type ultrasonic motor, the traveling wave type ultrasonic motor used for lifting glass for vehicle window is developed.
在超声波电机理论研究和样机制作的基础上,开发了用于汽车车窗玻璃升降的行波型超声波电机。
The research methods in this paper provide certain ways for obtaining the traveling wave accurate solutions of the coupling nonlinear differential equations.
文章的研究方法,为求解耦合的非线性微分方程组的行波精确解组探索了蹊径。
All possible exact traveling wave solutions are obtained.
给出了一些精确的解析行波解。
All possible exact traveling wave solutions are obtained.
给出了一些精确的解析行波解。
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