等效电路

The Coupled resonator model and the distribution of the electric Field on the axisin the singly periodic cavity chain and biperiodic chain with full-cavity terminationsare analysed by Helmholtz Equation using the symmetry properties of the structure.

本文从场的对称特性来解析整腔结束的单周期和双周期谐振腔链的振荡模式，并给出它们的场分布，作为对用等效电路理论研究谐振腔链的振荡模式和场分布的另一校核方法。

Through adjusting the site of metallic block in the rectangular cavities, the system's syntonic frequency gets altered.

利用等效电路法和高频场分析软件与粒子模拟软件分析了器件的性能。

It is the equivalent circuit of a triode amplifier circuit .

它是三极管放大器的等效电路。

In the middle of 20 century, agreat lot of scholars simulated the relation between the velocity of action potentialpropagated along a myelinated fiber or an unmyelinated fiber and the fiber diameteror the temperature. The results were according to the experimental results. But by far,there are lacking in the quantitative analysis of the velocity of action potentialpropagated along a myelinated fiber and an unmyelinated fiber.

本文首先分析了动作电位在无髓神经纤维上的传递机制，得出了可用跨膜电流的移动速度来等效动作电位传递速度的结论，结合电缆模型与 H-H 模型，建立了动作电位传递期间神经纤维的等效电路模型，并在此基础上推导出计算传递速度的公式，对其进行了验证。

In this paper, we first analyze the mechanism of action potential propagated alongan unmyelinated fiber, and present a hypothesis that the velocity of transmembranecurrent is the equivalent of the propagation velocity of action potential. Then usingthe H-H model and the cable equation we obtain the formula of the velocity. Insuccession, we apply a similar method to analyze the mechanism of action potentialpropagated along a myelinated fiber. Using the McNeal model and the CRRSS model,we obtain the formula of the velocity.

接下来，应用与无髓鞘神经纤维相类似的方法，分析了动作电位在有髓鞘神经纤维上的传递机制，同样得出了可用跨膜电流的移动速度来等效动作电位传递速度的结论，利用 McNeal 模型和 CRRSS 模型，建立了有髓神经纤维在兴奋传递期间等效电路模型，并推导出了速度的计算模型。

Electrochemical impedance spectroscopy results indicated that the dynamics of carbon steel electrode in uranyl nitrate is complex, in which intermediate compounds were formed onto the surface of carbon steel.

等效电路分析出现感抗和常相位角元件证实有中间化合物的生成，分析认为是在氧化铀／碳钢界面处形成了低价氧化铀。

Equivalent circuits of cathode vacuum arc discharge of the system at two work modedescribed above are presented,and are use to explain some experiment results.

给出了上述两种工作方式下，系统弧放电的等效电路，并对工作特性测试中的实验现象进行了解释。

From the basic principles of the AC machine,using the equivalent analysis method, a series of the equations、vector diagram、equivalent circuits of BDFM were obtained, which is the foundation of the analysis and control of the BDFM wind power generation system. The variable structure control was first used to the active and reactive power decoupling control of the BDFM.

无刷双馈电机的功率绕组、控制绕组、转子绕组的极对数不同，电流的实际频率也各不相同，论文从交流电机的基本理论出发，采用等效的方法，得到了无刷双馈电机的基本方程式、向量图和等效电路。

In this paper, the basic principle and the power factor of conventional SERDS are discussed. Aiming at its shortage of low power factor, boost chopper type SERDS is adopted. The equivalent circuit of the new scheme is built up, and then vector diagram is used to analyze the power factor of the system, also the harmonic distortion of the system is discussed. The experiment device is established base on a 380F/7.5 kW induction motor and a passive soft switching scheme is applied in order to improve the working condition of IGBT. At last, the experimental results are shown.

本文在分析传统串级调速原理的基础上，对系统的功率因数进行分析；针对传统串级调速系统功率因数低的缺点，采用升压斩波式串级调速系统加以改进；建立了升压斩波式串级调速系统的等效电路并采用向量图法对该系统的功率因数进行详细分析；分析了系统的谐波情况；构建了以7.5kW／380V电机为调速对象的升压斩波式串级调速系统实验装置，给出相应的实验结果；针对斩波器中IGBT处于硬开关状态的缺点，应用无源无损软开关技术予以改善，包括对软开关电路工作原理的分析、参数的设计并给出相应的实验结果。

This paper analyses the effect of field of bus in substation and the high voltage conductors between the transformer and the capacitive voltage divider on the divider ratio.

本文分析了变电站母线电场和试验变压器与电容分压器的高压联接导线电场对电容分压器分压比的影响，提出电容分压器的等效电路。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。