To utilize the interaction between the field and the electron beam in a traveling wave tube, the velocity of electrons and the longitudinal phase velocity of field should be made approximately equal. But when the electromagnetic energy increases, the electrons are slowed down and the synchronization condition is no longer satisfied in periodic structures.
由于行波管的工作依赖于其慢波系统中的电子注与沿轴传输交变电磁场之间的相互作用而完成，而这样的相互作用要求沿轴传输的交变电磁场必须与电子注有着近乎同步的速度，所以慢波系统内的同步问题就成了研究行波管的一个很重要的问题。
To utilize the interaction between the field and the electron beam in a traveling wave tube, the velocity of electrons and the longitudinal phase velocity of field should be made approximately equal. But while the electromagnetic energy increases, the electrons are slowed down and the synchronization condition is no longer satisfied in periodic structures.
由于行波管的工作依赖于其慢波系统中的电子注与沿轴传输交变电磁场之间的相互作用而完成，而这样的相互作用要求沿轴传输的交变电磁场必须与电子注有着近乎同步的速度，所以慢波系统内的同步问题就成了研究行波管的一个很重要的问题。
In high perveance klystrons, violent variation of electron beam radius and electron transverse velocity is met with, and the energy exchange between kinetic electrons and gap field is a nonlinear process.
在高导流系数的速调管中电子束径及横向速度都会发生显著变化，运动电子与间隙电场之间的能量交换是非线性的互作用过程。
The MD-MQW structure can provide a larger number of mobile electrons in the well and a smaller electron thermal velocity, in which increases the recombination rate and has the effect of reducing series resistance.
经由此n型调变掺杂，光流明效率在20毫安培注入电流下可提升10.7%；在相同范围的注入电流测试中，亦可以发现此n型调变掺杂位障层磷化铝镓铟发光二极体存在较小波长变化量与较低的接面温度变异结果，而元件可靠度衰减程度几乎与未掺杂元件相同。
The optimized geometry with 〓 symmetry is concavecage structure in which one N atom of each pentagon is concave rather than theconvex sphere of 〓 cluster. This concave-inward change is caused by therepulsion between the lone pair electrons of each nitrogen atom in the 〓.Estimates are given of the density of condensed-phase 〓, along with predictedvalues of its detonation velocity, detonation pressure and specific impulse.
由几何优化得到的构型得知，〓构型并不是〓构型那样的凸球面结构，而是每个五边形中有一个原子向内凹陷的凹多面体笼形结构，这种内凹畸变是由于每个N原子的三个价轨道形成三个σ键后剩余的孤对电子间的排斥作用引起的。
This is a process that works by way of condensation and coherence of high velocity electrons that consist of tunneling electron pairs otherwise known as cooper pairs.
这当做制桶匠双是已知的另外成对的经由压缩和有透纳电子的高速度电子的同调运作的一个程序。
The drift velocity of electrons d...
电子的漂移速度则随温度升高而降低。
The drift velocity of electrons decreases with increasing temperature.
电子的漂移速度则随温度升高而降低。
The influence of time on displacement was obtained, and the curve slope was approximate equal to drift velocity of electrons.
绘制了电子的位移与时间关系图，得到的曲线斜率可近似认为是漂移速度。
The lifetime of electrons, the drift velocity and diffusion are simulated and investigated, with the help of Garfield.
1引言TpC(Time projeetion Chamber，时间投影室)的结构和原理是由D.R。
When the electric discharge is very strong, collisions of high velocity electrons with molecules of gas result in no loss in momentum, and electron avalanching occurs.
当放电是非常强劲，碰撞的高速电子与气体分子造成任何损失的势头，电子avalanching发生。
On the other hand, the injected protons and electrons also experience clockwise and anticlockwise magnetic drift movements, the larger the energy of the particles is, the faster the drift velocity will be.
另一方面，注入质子和电子还经历顺时针和逆时针方向的漂移运动，粒子能量越大，漂移速度越快.暴时多次注入引起整个辐射带粒子通量的大幅增强；
It offers a new and relatively simple method to measure and control the phase velocity distribution. Then, we proceed to investigate another crucial subject of vacuum laser acceleration & the correlation between the outgoing energy and scattering angle of accelerated electrons.
根据公式，我们提出了一个新的、更方便的测量和构造相速度分布的方法。其次，我们研究了真空激光加速的另一个关键问题：被加速电子的能量角度关联。
In this thesis, emphasis has been paid on three key subjects for vacuum laser acceleration, i. e. phase velocity of the laser beam, the correlation between the outgoing energy and the scattering angle of the accelerated electrons, and using static magnetic field in the acceleration.
本论文重点研究了真空激光加速的几个关键课题：激光场的相速度、被加速电子的能量-角度关联、在真空激光加速中使用静磁场，并进一步将这些结论应用到俘获加速机制中。
Applying the calibration constants from electrons of 1 GeV/c momentum to other charged hadrons (π, k, p) of various momentum, time offsets are seen, which are found to be related to the velocity of hadrons.
利用1.0GeV/c电子的刻度参数用于不同动量的强子（π，k，p）修正时，发现存在一个与强子的速度β有关的系统时间偏移。
As both of these two degrees of freedom transport with electrons, another spin channel is formed in semiconductors. As a result, the density and velocity of the transported information will be greatly improved.
由于自旋和电荷是同时伴随着电子的输运而传输的，这样就在半导体中并行了一个自旋信息通道，因此，这样会大大提高信息的传输密度和信息处理的速度。
This gives rise to the results of a higher critical velocity for the electrons with larger transverse velocity.
在纵向速度较高时，逃逸电子的横向速度分量对临界速度的影响较明显，横向速度越大，临界速度也越大。
Transverse velocity of the electrons from the gyrotron satisfies the Gaussian distribution, distribution model of the velocity spread in the gyroklystron amplifier beam-wave interaction is established.
从回旋管电子注横向速度满足高斯分布出发，建立了速度零散的分布模型。
When a beam of energetic electrons propagate into the plasma, it will produce a return stream to make the total current less than the Alfven critical current, if there are perturbations parallel to the beams velocity direction, it can feed the two-stream instability.
当一束带电粒子在等离子体中传播时，将会产生回流，使总电流小于阿尔芬极限电流，但若在沿束流运动方向有扰动时，则会在等离子体中激起静电双流不稳定性。
We mainly studied the transporting behavior of excitated electrons including: the concentration distribution of excitated electrons at different times and in different valley, the drift velocity and electron mobility characteristic of those electrons and the current response of THz photo-detectors.
考察了激发电子在不同时刻的浓度分布、电子的漂移速度和迁移率特性，以及器件的电流响应。