1) tip electric field
尖端电场
1.
We studied the electric characteristics of metallic carbon nanotubes including potential distribution, surface charge distribution and tip electric field based on electromagnetic theory.
从理论上具体研究了金属型碳纳米管周围的电势分布、纳米管表面电荷分布及其尖端附近的电场强度等静电特性 ,结果显示长径比小的碳纳米管尖端处所集聚电荷密度的相对值大 ,而长径比大的碳纳米管尖端处所集聚电荷密度的绝对值大 ,并且碳纳米管的尖端电场强度有很大的加强。
2) Tip field
尖端场
1.
The problem was reduced to a Hilbert problem, and then closed_form expressions were obtained, respectively, for the complex potentials in piezoelectric media, the electric field inside the inclusion and the tip fields near the inclusion.
应用Stroh理论 ,研究了两压电介质之间的刚性介电线夹杂问题· 首先该问题被化为Hilbert问题 ,然后分别给出了压电介质内的复势函数解、夹杂内的电场解和夹杂尖端场的解析表达式· 结果表明 ,在夹杂尖端附近 ,所有的场变量均呈现奇异性和振荡性 ,且其强度取决于介质的材料常数和无限场远处的应变· 此外 ,结果还表明 ,当从夹杂内部趋近夹杂尖端时 ,夹杂内的电场也呈现奇异性和振荡
3) tip discharge
尖端放电
1.
On the base of the charge distributing rule on the cone-shaped conductor and micro-mechanism of the tip discharge,simulation research on radiation field of tip discharge is investigated in this paper.
本文在分析锥形导体的电荷分布规律及尖端放电微观机理的基础上,对尖端放电进行了仿真研究,结论与实验基本一致。
4) point discharge
尖端放电
1.
TiN permeation layers composed of diffusion and deposition layers are synthesized on the surface of carbon steel using plasma point discharge, hollow cathode effect and reactive vapor deposition techniques.
利用等离子尖端放电、空心阴极效应和反应气相沉积技术,在碳钢表面形成具有扩散层和沉积层的Ti N渗镀层,然后在此渗镀层表面沉积(PVD法)TiB2薄膜,形成Ti N/TiB2复合渗镀层。
2.
A new technique of TiN multi-permeation layers composed of diffusion and deposition layers on the surface of carbon steel by using plasma point discharge, hollow cathode effect and reactive vapor deposition at the same time are introduced.
介绍了一种同时利用等离子尖端放电、空心阴极效应和反应气相沉积技术,在碳钢表面形成具有扩散层和沉积层的TiN复合渗镀层新工艺技术。
3.
Tradition says that the principle of operation of lightning rod is point discharge.
避雷针工作原理的传统说法是尖端放电,现在看来这种说法是不确切的,下面从避雷针工作原理的演示实验出发以及从大量的事实来论述避雷针工作原理的实质。
5) point electrode
尖端电极
6) crack-tip field
裂纹尖端场
1.
To investigate the propagating crack-tip field under viscose effect,under the assumption that the artificial viscosity coefficient at the propagating crack tip is in inverse proportion to the power of the plastic strain rate,a rate-sensitive constitutive relationship is derived for elastic-perfectly-plastic materials.
为了研究粘性效应作用下的扩展裂纹尖端场,假设扩展裂纹尖端的人工粘性系数与塑性应变率的幂次成反比,推导出理想弹塑性材料的一种率敏感型本构关系。
2.
The numerical calculation results indicate that the hardening coefficient dominates the structure of crack-tip field but the secondary plastic zon.
采用弹粘塑性力学模型,对蠕变材料中Ⅲ型准静态扩展裂纹尖端场进行了渐近分析。
3.
It is shown that in stable creep growing stage, elastic-deformation and visco-deformation are equally dominant in the crack-tip field, and the stress and strain have the same singulari.
为了研究黏性效应作用下的界面动态扩展裂纹尖端渐近场,建立了刚性-粘弹性材料界面II型动态扩展裂纹的力学模型;在稳态蠕变阶段,弹性变形和粘性变形同时在裂纹尖端场中占主导地位,应力和应变具有相同的奇异量级,即(σ,ε)∝r-1(n-1)。
补充资料：尖端放电
| 尖端放电 point discharge 带电导体尖端附近空气中的放电现象。静电平衡时，带电导体外附近的场强与导体的面电荷密度成正比。大致说来，导体表现凸出而尖锐的地方，即曲率较大的尖端，电荷密集，面电荷密度增大，附近的场强特别强，致使空气电离，产生放电现象。尖端放电时，在它周围往往隐隐地笼罩着一层光晕，叫做电晕。高压输电线附近发生的尖端放电会造成能量损耗，需使输电线表面光滑，以避免尖端放电。避雷针则利用尖端放电，将集中的高空电荷通过接地装置泄入大地，以免建筑物等遭雷击。 |
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参考词条