plasma frequency

Furthermore , the effect of the temperature and the power law exponent on the corrected plasma frequency is discussed .

进一步讨论了温度和幂律指数对修正的等离子体频率的影响。

The pass band of this mode is from static to plasma frequency , and does not depend on structure dimension .

这一模式的通带从零到等离子体频率，而且不依赖于结构尺寸。

Because of their inertia , the electrons will overshoot and oscillate around their equilibrium positions with a characteristic frequency known as the plasma frequency .

因为电子的惯性，它们将冲过平衡位置，并以特征频率围绕它们的平衡位置振荡。

While the external RF frequency is much smaller than ion plasma frequency , Ions answer external instantaneous RF field .

当外加的射频频率远小于离子等离子体频率，离子密度分布响应瞬时外加射频场，呈明显的周期性振荡。

The propagation of waves whose frequency is below plasma frequency and above HF band , in magnetized plasma waveguide is studied .

本文着重研究了磁化等离子体波导中，当电磁波频率小于等离子体频率，大于HF波段情况下的导行情况。

As the nitrogen partial pressure increases , the variation of color coordinate is caused by decrease of free electrons number of the films and decrease of plasma frequency .

发现颜色坐标的变化是由于随氮分压增加，自由电子浓度降低引起等离子体频率降低造成的。

The effect of the dust charging process becomes significant when the charging time is longer than either the pulse period or the ion response time ( measured by the inverse of the ion plasma frequency ) .

因为尘埃粒子的充电时间长于离子响应时间或者负脉冲时间，尘埃粒子的充电过程对鞘层的形成将有很大影响。

The plasma frequency and the electron collision frequency can be deduced with the plasma diagnostic method that utilizing the transmission attenuation of microwaves at two neighboring ( double ) frequencies in a non-magnetized plasma .

介绍了利用非磁化等离子体中微波在两个相邻波长处的透射衰减值来反推该等离子体频率（从而得到电子密度）和电子碰撞频率的方法&双频点微波透射衰减诊断方法。

The plasma frequency of doped semiconductor can be adjusted by changing the dope concentration . Therefore we can realize low reflectivity in the visible region , high reflectivity ( low emittance ) in the infrared region .

掺杂半导体，可以通过改变掺杂浓度而调整其等离子频率，使得半导体薄膜可以实现可见光低反射、红外高反射，实现可见光与红外兼容隐身。

And the results show that , when the plasma frequency exceeds the resonant frequency , the electromagnetic field distribution of the resonant cavity will change greatly , which will have an important impact on the stability of the high power klystron .

由研究结果得知，当等离子体的频率超越谐振腔的谐振频率时，谐振腔内的电磁场分布会有很大的变化，这对于大功率速调管的稳定性将有着重要影响。

On basis of Lorentz model , we bring in size parameter into bound electron relaxation time and plasma frequency by analogy with phonon scattering , and build a dielectric particle n and k model which vary with size and wavelength .

在洛伦兹模型基础上，类比声子散射，提出了对束缚电子的等离子体频率和束缚电子弛豫时间引入尺度修正因子，建立了电介质粒子n、k值随波长和粒径变化的尺度效应模型。

The numerical results show the two-stream instability of two electron beams can produce Cherenkov radiation through the interaction between the fast space charge wave and the slow space charge wave , and the frequency of radiation can be above the plasma frequency .

针对不同参数对色散方程进行数值计算，发现当两根电子注之间存在速度差时，通过快慢空间电荷波的相互作用，两电子注引起的双流不稳定性可以产生契伦柯夫辐射；

When the beam current increases , the virtual cathode position is closer to the injection plane and its oscillating region gets narrower , the virtual cathode potential decreases and its amplitude increases , the oscillation frequency increases above the beam plasma frequency .

电流越大，虚阴极位置越靠近注入面且变化范围越小，虚阴极电势越低且振幅越大，振荡频率越高且大于电子束等离子体频率。

The electromagnetic frequency of the solitons is about one_half of the unperturbed electron plasma frequency . The transverse electric , magnetic and electrostatic fields have half_ , one_ and one_cycle structure in space , respectively .

电磁孤立子的电磁频率大约为未扰动电子等离子体振荡频率的二分之一左右，孤立子内电磁场的电场具有半周期结构，相应电磁场的磁场以及静电场则具有一个完整的周期结构。

The numerical analyses of the radiation characteristics of a plasma-column antenna is presented by using the moment method when the operating frequency is greatly lower than the plasma frequency , including current distribution along the plasma column , radiation pattern , input impedance , antenna efficiency and gain .

基于矩量法计算了当等离子体天线工作频率远小于等离子体频率时，密度均匀分布的柱形等离子体天线表面电流分布、辐射方向图、输入阻抗、天线效率以及增益等天线参数。

On the basis of comparing the electromagnetic characteristics of the beam-ion channel with a traditional medium waveguide for the condition of a step-boundary defined in this paper , the numerical simulation results show that by changing the plasma frequency one can control the electromagnetic working mode in ion channel .

通过对理论结果的数值模拟计算，在阶跃边界情况下将束-离子通道与一般介质波导的电磁关系进行了比较，发现束-离子通道可以通过改变等离子体频率来控制其工作模式。

Strong stabilization , effective shield plasma high frequency interference .

稳定性强，具有超强的等离子高频抗干扰能力。

Measurements of plasma high frequency instability with high impedance probe

C高；等离子体高频不稳定性的高阻抗探针测量

Development of Plasma Intermediate Frequency Pulse Power Source and Study on Azotize Effect Comparison

等离子体中频脉冲电源研制及渗氮效果比较研究

Enhanced plasma - frequency radiation in tokamaks

托卡马克中等离子体频率附近的增强辐射现象

The physical mechanism about reflection of low-emission glass in near-infrared region is explained by using plasma cut-off frequency theory .

利用等离子体截止波长理论，解释了低辐射玻璃红外反射的物理机制。

Conclusion The low-temperature plasma radio frequency treatment for OSAHS complicated with allergic rhinitis is easy , safe and efficient .

结论低温等离子射频治疗OSAHS合并变应性鼻炎疗效较好。

Objective : To observe the effects of plasma radio frequency operation vs microwave operation on obstructive sleep apnea hyponea syndrome ( OSAS ) .

目的：比较等离子射频消融术与微波凝固术治疗对阻塞性睡眠呼吸暂停综合征（OSAS）患者的临床疗效。

Prefect magnesian ilmenite ( MCT ) thin films were prepared on ( 110 ) silicon dioxide underlay by using high density plasma radio frequency ( RF ) sputter .

制备了膜层质量良好的镁钙微波介质陶瓷（MCT）薄膜.采用高密度等离子体射频溅射法在（110）二氧化硅上沉积了MCT陶瓷薄膜。

The radar scattering cross-sections ( RCS ) of scattering target are computed while the plasma collision frequency , the plasma frequency and the plasma cyclotron frequency are changed separately . The effect of RCS by parameters of plasma has been analyzed .

通过分别改变等离子体碰撞频率、等离子体频率、等离子体回旋频率等这些等离子体参数，计算了散射目标的RCS，定性的分析了等离子体参数影响RCS的情况。

Enhancement of X-ray emission from laser plasma in high frequency electric field

高频强电场下的等离子体X光发射增强

Measurement of energy distribution of the ions within plasma in high frequency heating mirror device

高频加热磁镜装置等离子体离子能量分布的测量

Atmospheric Pressure Glow Discharge Plasma in Intermediate Frequency and Its Application to Surface Modification of Textile Fibers

大气压中频辉光放电等离子体特性研究及其改性纺织纤维

The Relationship between Plasma Lipids and Frequency Domain Parameters of Heart Rate Variability in CHD and Healthy Men

冠心病患者和正常人血脂与心率变异性频域指标关系的研究

Improvement of Antistatic Property of Synthetic Fibers with Low Temperature Argon Plasma in Intermediate Frequency at Atmospheric Pressure

用常压中频低温氩等离子体改善合纤织物的抗静电性能