The energy pattern, total radiation energy, radiation efficiency and radiation resistance of standing-wave dipole excited by rectangular pulse are discussed.
本文讨论了矩形脉冲激励的对称驻波天线的能量方向图、总辐射能量、辐射效率和辐射电阻等问题。
And a standing wave means there is a geometric constraint which is what?
驻波意味着有几何限制，几何限制又是什么？
Their mutual self-supporting pose is continuously almost-falling, like a standing wave in a spring creek.
相互自我支持的姿态就是不断的放低自己，就像春天溪流中的驻波。
According to Peter Handel of the University of Missourithat can, in the right circumstances, create a standing wave of electromagneticenergy which makes the surrounding air glow.
密苏里州大学的PeterHandel认为如果这样的话，水分子就能创造出电磁驻波从而使得周围的空气发光。
It is in a standing wave configuration.
是个驻波结构。
Methods Use a standing wave tube to measure the sound absorption coefficient of many kinds of grain.
采用驻波管法测量了多种粮食的吸声系数。
The resulting standing wave is a swirling motions such as might result if we swirled water in a round-bottomed cup.
所产生的驻波是一种旋转运动，它是在我们转动圆底杯中的水时会产生的现象。
Cyberspace consists of transactions, relationships, and thought itself, arrayed like a standing wave in the web of our communications.
赛柏空间由交易、关系和思想本身构成，它们像一道永恒的波浪，在我们的交流之网上部署着。
Standing wave have been defined as a kind of vibration in some references.
一些文献在给驻波下定义时，把它说成是一种振动。
Under the frequency of resonance, small particles which are in the bottom of an upright standing wave tube will rise and move to the node, or loop planes, and keep suspending there.
竖直放置的驻波管在共振频率下，位于其管底的微小颗粒群会在一定声压级下产生悬浮现象，即腾空而起，悬浮在波幅波节平面。
A momentum transfer of a moving three level atom interacting slantingly with a standing wave laser field is analysed.
分析了一个运动的三能级原子与一个驻波激光场在斜交相互作用时的动量传递行为。
It is accepted that standing wave does more effect on the lithography patterns of thin resist, whereas less of thick resist.
一般认为，驻波效应对薄胶的光刻图形有较大的影响，而对厚胶的光刻图形影响不大。
The electron back bombardment phenomenon, which results in anomalous increase of gun current emission, has been observed in a series of our side coupled standing wave accelerating tubes.
在以半腔为首腔的边耦合驻波加速管中观察到了电子反轰现象，由于电子反轰的结果，导致电于枪发射电流非正常增长。
Objective To evaluate the safety of ultrasonic standing wave blood separation technology from two point of view: rheology and blood cell composition.
目的：从血液流变学和血细胞成分两方面来评价超声驻波血细胞分离机的安全性。
The measurement of sound speed in the air is studied in the experiment by phase comparison method and standing wave method.
通过实验，应用相位比较法和驻波法对空气中的声速测量进行了研究。
We have investigated the localization of the two atoms passing through a standing wave in an optical cavity by measuring the field quadrature.
研究了置于一个单模驻波光腔中的两个二能级原子，通过利用测量场的正交分量的方法定位这两个原子位置的情况。
When the frequency of laser standing wave is higher than the resonant frequency of atoms, the atoms will be focused on the wave node of the standing wave.
当激光驻波场的频率大于原子的共振频率时，原子由于受到偶极力的作用将被会聚到驻波的波节处。
By comparative analysis, the dependence of the resonant frequency, voltage standing wave ratio, bandwidth and input resistance on different geometric parameters is obtained.
通过比较分析，得到了天线谐振频率、谐振点电压驻波比、带宽以及输入阻抗随不同几何参数的变化规律。
The simulated results show that a stable acoustic standing wave is formed in bubble column under the geometric arrangements and the transducer boundary condition employed in this study.
模拟结果表明，在本研究所用的几何布置和换能器与时间相关的速度入口边界条件下，反应器中形成了一个稳定的驻波声场；
It is found that the density structure of one dimensional interference fringes of Bose Einstein condensates is in form of a standing wave.
发现玻色爱因斯坦凝聚体的一维轴向干涉条纹的密度分布是一种驻波状结构。
WARNING: Standing Wave Ratios in excess of 2:1 May cause transmitter damage.
警告：当驻波比超过2：1可能会导致发射部件受损。
Standing wave is parasitic effect of exposure, generated by multi reflection and interference of rays vertically incident upon parallel medium layers.
驻波是曝光中的寄生效应，是光线垂直入射到不同的平行平面介质层之间，经多次反射并干涉形成的。
The theory and corresponding experiment of the intensity profile modification of a Gaussian laser beam by an ultrasonic standing wave (controlled by electricity) are reported and discussed.
本文报道和讨论了在超声驻波作用下实现激光高斯光束空间强度整形的原理与实验。
The boundary conditions of standing wave are the continuous electromagnetic vectors on the parallel interfaces.
驻波的边界条件是平行界面上电磁场矢理的连续。
Standing wave ultrasonic motors have many outstanding features for simple drive and control circuit, stationary speed of rotation, smaller undulation, etc.
其中驻波超声波电机具有驱动和控制电路简单，转速平稳，波动较小等突出优点。
F ROM above, a method to realize the testing of cable partiality online by ultrasound standing wave is advanced.
在此基础上本文提出了利用超声驻波的方法实现电缆偏心在线检测。
The standing wave and the characteristic of the radiated power of this printed antenna fed by the standard coaxial line are analyzed by the numerical method.
文中用数值法分析了这种印制天线在标准同轴线馈电时的驻波和辐射功率特性。
The standing wave laser field is applied to the upper transition with the Rabi frequency dependent on the position through which the atom passes.
驻波激光场与级联原子的上跃迁耦合，其拉比频率依赖于原子通过驻波场的位置。
A standing wave tube measurement system is presented for measuring low frequency acoustic properties of underwater acoustic materials.
介绍一种用于水声材料低频声性能测量的驻波管测试系统。
This article research content and research results mainly includes following parts: Phononic crystals new sound insulating material standing wave tube test modelling.
本文主要研究内容及成果如下：声子晶体新型隔声材料驻波管测试建模。
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