本文研究了在垂直于磁场和等离子体流动的重力场中具有剪切流动的电流片的稳定性。
The stability is studied of a current sheet with a sheared flow in a gravitational field which is perpendicular to the magnetic field and plasma flow.
此外,还根据实验现象从理论上分析了交流等离子电弧的稳定性。
The stability of the AC plasma arc was analyzed on the base of the experiment phenomena in theory .
从热特性、电特性、焰流速度和燃烧稳定性的角度分析了发生器中等离子弧的特征。
It analyses the plasma electrical arc characteristic from the thermal and electrical characteristic and flame flow rate and the burning stability.
与化学掺杂相比较,等离子体掺杂具有很高的掺杂速率,并可提高导电聚合物的稳定性。
Compared with a chemical doping, the plasma doping displays much higher doping speed and can improve the stability of conductive polymers.
结果表明,施加水再压缩对提高等离子弧柱的能量密度和稳定性、进而提高陶瓷件切割质量非常有效。
It is shown that the water constriction is effective on improving the energy density and stability of the arc, so the cutting quality can be improved also.
探讨了激光剥蚀等离子体质谱固体微区分析中激光剥蚀参数对元素分析信号灵敏度及稳定性的影响。
The effects of laser ablation operating parameters on sensitivity and stability of signal response in solid microanalysis by LA-ICP-MS technique have been respectively investigated.
热电子环能降低不稳定性的增长率,减少等离子体的反常输运损失。
Hot electron ring can reduce growth rate of the instability and anomalous transport flux.
同时根据电荷电压图形随工作条件及状态变化的情况还可以诊断dbd等离子体的工作稳定性。
At the same time the stability of DBD plasma can be diagnosed by the charge-voltage figure which changes with changes in the operation conditions.
在穿孔等离子弧焊接过程中,小孔稳定性对焊接过程的稳定和优质的焊缝成形是非常关键的。
Keyhole stability during plasma arc welding welding process is critical to the process stability and weld quality.
结果表明,尘埃等离子体中存在一种由引力非稳定性产生的凝聚效应,从而导致局域密度增大。
It is shown that there is a condensation effect in dust plasma that caused by the gravitational instability, so that the density increases locally.
理论上预示了在热电子等离子体中,等离子体漂移波是最重要的低频不稳定性。
The theoretical analyses predict that the drift wave is the most dangerois low frequency instability in the hot electron plasma.
结果表明:离子束对等离子体中参量不稳定性的激发有极重要的影响。
The results show that the ion beam has an important influence upon the parametric instability excitation in plasma systems.
而较高气压时,束电子除受自身电磁场作用及库仑碰撞散射外,等离子体不稳定性使束流传输效率明显降低。
At relatively high pressure, in addition to electromagnetic field and electron's Coulomb scattering by gas molecules, plasma instability would result in decrease of propagation efficiency.
另外,使用较高的载气压力并不影响等离子体辐射的稳定性。
In addition, the stability of the plasma radiation was not affected by the higher nebulizer gas pressure.
本文讨论了外磁场微小的变动对等离子体平衡位形的影响,即等离子体的静态稳定性问题。
In this article, the effects of the small magnetic field perturbation on the equilibrium of plasma are discussed (the problem of the static stability of plasma).
讨论了具有抛物线形电流分布的电弧等离子体柱在磁场中的不稳定性问题。
The helical instability problem of an arc plasma column with a parabolic current profile in a magnetic field is discussed.
不稳定性产生的可能机制是由于电子束穿过低密度本底等离子体的漂移速度超过离子声速而激发起来的。
It is suggested that the instability is excited in the low density plasma when the electron beam drift velocities exceed the ion acoustic speed.
本文利用理想磁流体力学(MHD)模型对含有轴向流动的Z箍缩等离子体不稳定性进行了分析。
A linear analysis of the ideal magnetohydrodynamic (MHD) stability of the Z-pinch is presented in which plasma flows are included in the equilibrium.
软x射线诊断是研究托卡马克等离子体不稳定性的重要手段。
Soft X-ray diagnosis is a important method in the research of tokamak plasma instability.
本文研究部分电离等离子体中交换不稳定性的爆炸型模耦合。
Explosive mode coupling of low frequency interchange instability in partially ionized plasmas is studied.
根据MHD气球模稳定性理论,计算了负磁剪切位形中等离子体气球边缘稳定性区域。
Based on MHD ballooning mode stability theory, marginal stability regions of the plasma ballooning mode in negative magnetic shear configuration are calculated in this paper.
结果表明,在离子束-等离子体系统中可以激发维泊耳型电磁不稳定性,离子和电子之间的碰撞将使这类不稳定性的增长率增加。
The results show that electromagnetic instability can be excited in an ion-beam-plasma system. Ion-electron collisions increase the growth rate of the instability.
首先是磁曲率对等离子体电阻性不稳定性的影响。
The first is that the effects of the magnetic curvature on the resistive interchange mode in tokamak plasmas.
利用理想磁流体力学模型对有轴向剪切流的Z箍缩等离子体不稳定性进行了分析。
A magnetohydrodynamic formulation is derived to investigate the mitigation effects of the sheared axial flow on the Rayleigh-Taylor (RT) instability in Z-pinch plasma.
本文采用两步隐式差分格式研究了自由边界载流等离子体柱的电阻螺旋模不稳定性。
In this paper we employ a two-step implicit difference scheme to study numerically THS resistive helical instability of current-carrying plasma column with free boundary.
在静电磁流体方程基础上,提出了柱状放电电弧等离子体磁螺旋不稳定性的一种新的线性分析方法。
A new linear analysis for magnetic helical instabilities of arc discharges in a cylindrical plasma is developed based on a set of electrostatic magnetohydrodynamic equations.
电离层不规则结构的形成和演化与电离层等离子体不稳定性密切相关。
The formation and evolution of ionospheric irregularities are closely connected with the instabilities of ionospheric plasma.
工作稳定性强,有效屏蔽等离子高频干扰,轻巧便携;
Good Working stability, high frequency interfere effectively plasma, lightweight.
采用了PID控制、输入误差直接自适应控制和输出误差直接自适应控制三种控制方式对HL-2A装置的等离子体垂直不稳定性进行了研究。
PID controller, input error adaptive controller and output error adaptive controller have designed to study the vertical instability control of the HL-2A plasma.
这些电源稳定性较好,允许专用于微型TIG焊的电流非常低,可以大量取代等离子方法用于微型焊接作业。
The greater stability of these power sources allows very low currents to be used particularly for micro-TIG welding and largely replaced the plasma process for micro-welding operations.
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