电磁振荡

The study of motion characteristics,electromagnetic characteristics and oscillation characteristics of electrical particles are key composition of the EDM mechanism study.

电火花加工机理研究的相对滞后在一定程度上制约了电火花加工技术的进一步发展；放电通道中带电粒子的运动特性、电磁特性及振荡性的研究是电火花加工机理研究中的重要组成部分。

KEY WORDS Meridians; Energy and Information System; Electromagnetic and Chemical Oscillation; Quantum Characteristic

经络的载体是人体的物质系统，经络运行除有神经、体液、微循环和化学因子等参与外，尚须依托以电磁振荡与化学振荡为主导的能量信息系统。

A relative stable circular current of electromagnetic and chemical oscillation along the low electric resistance pathway was found.

发现沿低阻通道传输的相对稳定的电磁振荡及电化学振荡循行流。

Competition of different frequency oscillation often yield resonance in some positions of the human body so as to form "oscillatory network" and "strange point" with the electromagnetic and chemical oscillation circulating dominant position in the body, which is possibly meridians and acupoints with regulative actions.

不同的振荡之间相互竞争，往往会在机体的某些部位引发共振，从而形成具有电磁和化学振荡传输优势的"振荡网络"和"奇点"，它可能就是最具调整效果的经络和腧穴。

In this paper, a novel Crowbar control strategy is proposed to limit the over current in the rotor and the over voltage of the DC bus as well as the transient oscillation of the electromagnetic torque. Moreover, a capacitive current is injected into the grid to assist the recovery of the grid voltage.

文章提出了一种Crowbar控制策略，能有效抑制转子过电流、直流母线过电压以及电磁转矩的振荡，并可向电网注入无功电流以帮助电网电压的恢复。

Due to its good effect in the reservation of information of signal abrupt change, mathematical morphology is often applied in the detection and location of short-term power quality disturbance, however, there is still a defect of invalid detection existing in partial detection methods based on mathematical morphology while some zero-crossing disturbances are detected. In this paper three mathematical morphology based disturbance detection and location methods, i.e., the method based on first-order derivation and morphological gradient, the method based on morphological gradient and soft threshold processing and the method based on dq decomposition and top-hat transform, are analyzed, that is, by means of simulation the adaptability of these methods in the analysis on the signals of voltage sag, voltage swell and electromagnetic transient oscillation is compared.

数学形态学因其在保留信号突变点信息方面有很好的效果，因此常用于短时电能质量扰动的检测和定位，但基于数学形态学的部分方法仍存在对某些过零点扰动检测失效的缺点，文章分析了3种基于数学形态学的扰动检测和定位方法，即基于1阶求导和形态梯度的方法、基于形态梯度和软阈值处理的方法、基于dq分解和高帽变换的方法，通过仿真比较了3种方法在分析电压暂降、电压暂升、电磁暂态振荡等信号方面的适应性，结果发现基于dq分解和高帽变换的方法在检测过零点扰动时具有很好的效果，因此选取这种方法对实测扰动数据进行了检测和定位分析。

Furthermore, secondary full-wave rectifier with a clamping capacitor is used to eliminate the voltage oscillation and spike of the rectifier diodes due to the reverse recovery. Therefore, the electromagnetic interference is reduced effectively.

同时副边采用带箝位电容的全波整流电路，消除了采用传统全波整流时副边整流管反向恢复引起的电压尖峰和电压振荡，有效地降低了电磁干扰。

Based on the theory of stimulated polariton scattering, adopting reported experimental conditions that generate tuning terahertz wave utilizing nonlinear optical parametric oscillation as the theoretical analysis model, taking GaAs, GaP, InP, ZnTe crystal as representative, the absorption and gain characteristics in zinc blende crystal are calculated, and the output tuning characteristics of terahertz wave are also analyzed.

基于受激电磁耦子散射原理，采用已报道的利用非线性光学参量振荡方法产生可调谐太赫兹波的实验条件作为理论分析的实验模型，以GaAs、GaP、 InP、ZnTe晶体为代表，计算分析了在闪锌矿晶体中参量振荡产生太赫兹波的吸收、增益特性，对输出THz波的调谐特性给出了详尽分析。

By applying electromagnetic vibration on solidification front of Sn-10Pb alloy,creation of equiaxed grain zone in ...

在低强度电磁振荡条件下，凝固组织细化和等轴晶化的原因是：电磁振荡力对金属初生晶的周期性拉伸、压缩、剪切、折弯、扭转等机械作用，使其出现断裂和剥落，增加形核数量；电磁振荡的局部搅拌作用使固/液界面前沿的温度和成分趋于均匀化，导致梯度降低，抑制了柱状晶的生长。

From the viewpoint of the computer simulation, this paper presents three models which can be applied respectively to the analysis of very fast-fronted transient , local oscillations and impulse voltage distributions in the transformer windings.

本文从计算机仿真的角度建立了三个计算模型，分别适用于分析变压器线圈中的快速暂态、局部电磁振荡和冲击电压分布。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。