导纳

H（01）模圆波导阶梯的导纳

The admittance of the radial step of h_ ( 01 ) cylindrical waveguides

结果表明，H（01）模圆波导阶梯的等效导纳和反射系数将随工作频率的升高而减小。

The results show that the admittance and the reflection coefficient of the waveguide step decrease with the increase of frequency .

有源网络不定导纳矩阵的一般k阶余因式的拓扑表达式

Topological expressions for general k-order cofactor of INDEFINITE-ADMITTANCE matrix of active networks

本文利用矩阵代数技术推导了多层介质结构阻抗型、导纳型以及混合型谱域并矢Green函数的四种表达式，以便简化多层介质时谱域并矢Green函数冗长的推导过程。

Four expressions of Green 's function in spectrum domain are deduced for stratified media by matrix technique in this paper .

运行仿真基于节点导纳矩阵方程的迭代求解，采用了LU三角分解法。

The calculation method is based on node admittance matrix equation and takes LU factorization algorithm .

以ΔY为X轴坐标，dy/dt为Y轴坐标，自动拟合成脑导纳微分环。

The differential admittance loop was simulated and synthesized automatically by using Δ Y as coordinate axis X and dy / dt as coordinate axis Y.

109例正常大学生STI导纳法微机测定结果分析

Analysis of Microprocessor Measuring Results 109 Students ' STI with Impedance Cardiograph

以图论知识为基础，应用连通图中的k树树支导纳乘积，给出网络函数及其灵敏度分析的符号表达式。

Based on network graph theory , using admittance product of k-tree branches in connected graph , the symbolic expression of network function and its sensitivity are presented .

因此，心导纳图法是一项有发展前途的测量SV的方法。

Therefore , the admittance cardiography is an advisable method for the measurment of SV .

基于HFSS的波导裂缝有源导纳的计算方法

Computation Method for Active Admittance of Waveguide Slot Based on HFSS

采用右胸电导纳技术检测60例急性心肌梗塞（AMI）患者的小循环心功能。

The pulmonary circulatory functions were investigated in 60 patients with acute myocardial infarction ( AMI ) by right chest electro-admittance technique .

基于HFSS仿真和矩量法分析的有源导纳提取方法

Method for Extracting Active Admittance Based on HFSS Simulation and Method of Moment

而由导纳量测的结果发现，样品中含有来自于n型掺杂的矽（Si）、p型掺杂的镁（Mg）和一个可能与氮空缺（N-vacancy）有关的缺陷。

Then we found then type dopant ( Si ), the p type dopant ( Mg ), and the defect N-vacancy related with admittance measurement .

本方法通过PSS／E提供的潮流计算模块，采用负荷导纳模型，能有效地计算静态电压稳定极限。

This method , adopting admittance model in load bus and using the activities supplied by PSS / E , can compute the voltage stability limit effectively .

HY-1型恒压式导纳图仪的研制

The development of an HY-1 type constant voltage mode admittance plethysmograph

采用变导纳法，将感应电动机的静态等值参数直接运用于电力系统PV曲线的计算。

Varying-admittance method is used to calculate the PV curves of the power system , and only parameters of static equivalent circuit is needed in the calculation .

通过用耦合板结构的平均导纳表示耦合损耗因子，将统计能量分析（SEA）的应用范围向低频做了扩展，从而使统计能量分析在中低频仍有较高的预测精度。

Coupling loss factor expressed by average mobility of coupled plates , the applied range of statistical energy analysis ( SEA ) is extended to medium and low frequency , which makes SEA precise in medium and low frequency .

给出了含有4种类型受控源、运算放大器及跨导运算放大器（OTA）的n端约束网络节点导纳矩阵（或不定导纳矩阵）的构成规则；

This paper presents the rules for forming the admittance matrix of constrained multiterminal network consisting of four types of controlled sources , ideal or nonideal Opamps and OTAS .

本文讨论了用基本开关电容（SC）电路的Z域传输导纳，建立有源开关电容滤波器（SCF）等效Z域模型的方法。

The paper discusses the method of establishing active switched-capacitor filter ( SCF ) Z-domain equivalent circuits model using Z-domain admittance of the basic switched-capacitor ( SC ) circuit .

依据最小二乘原理，估计导纳形式Cole-Cole模型的各个参数。

Parameter evaluation of Cole-Cole model in form of admittance by least square method was obtained .

分析了常用MPPT算法优缺点并采用了变步长导纳增量法以满足跟踪速度和精度。

Advantages and disadvantages of common MPPT algorithm are analyzed and a variable-step incremental conductance method is used to meet the tracking speed and precision .

压电阻抗法的核心问题是PZT片激励及耦合电阻抗（或电导纳）的测量，目前研究中多是借助阻抗分析仪实现。

The core issues of EMI are the excitation of PZT patches and measurement of coupled impedance ( or admittance ) which are usually achieved by the bulky and expensive Impedance Analyzer .

该文在Carson算法的基础上，考虑大地介质对串联阻抗和分支导纳矩阵的影响，并采用一种简化算法更完整地计算和分析配电线上的驻波。

This paper adopts a simple method to calculate and analyses the standing waves in detail considering the effects of ground , based on Carson Formula .

它利用矩阵的概念来计算补偿导纳，运用电容器和TCR（晶闸管控制电抗器）并联构成负序无功补偿装置。

It uses the matrix concept to calculate the compensation conductance , utilizes the capacitor and TCR ( thyristor control reactor ), then constitute negative sequence idle work compensation system .

这种振动方式，Mason曾作过详细研究，得到了电导纳表达式以及只适用于基频共振频率附近的简化等效线路。

Mason researched this mode at first , and he derived the electrical admittance formula and approximate equivalent circuit that is only suitable to the vicinity of the fundmental frequency .

讨论了用散射参数表达的串联阻抗Z和并联导纳Y的二端口特性，给出了它们的有源RC电路模型。

In this paper , the scattering parameter expression of two port properties of impedance 2 ( in series connection ) and admittance Y ( in parallel connection ) is discussed , and their active RC model is presented .

本文基于对传统的CMOS反相器的低电压工作状态的分析，提出了新颖的CMOS高通滤波器，其截止频率可以通过调节工作于亚阈值区的CMOS管的沟道导纳来实现连续可调。

This paper proposes a novel CMOS high pass filter whose cut off frequency can be tuned by tuning the channel transconductance of CMOS transistors which works in weak inversion region , based on the discusses of conventional CMOS inverter .

设计PZT布置方案并分析了不同频段和不同位置的压电导纳频谱，提出应用压电阻抗技术进行损伤定位的可能性。

Layout scheme of PZTs is designed and possibility of damage localization using piezoelectric impedance technology is proposed after the analysis of admittance spectrum of PZT in different frequency bands or at different locations . 4 .

给出Scott接线变压器的二次侧两相端口电压输出方程、两相等值电路和相坐标下的节点导纳矩阵，以便同电力系统和牵引网接口进行有关问题的分析计算。

The two-phase output voltage equations , two-phase equivalent circuit and nodal admittance matrix of Scott transformers are presented , which can be used for calulation for interfacing between the three-phase power system and traction networks .

用实例阐明了Excel在电力系统故障计算时的方法，即建立系统等值序网络和各序网络节点导纳矩阵，用Excel矩阵求逆函数获得阻抗矩阵，求得阻抗方程，再计算出故障电气参数。

Its application in electric power fault calculation is illustrated with examples : establish system equivalent sequential networks and their node admittance matrices ; convert them into impedance matrices using the matrix reverse function of Excel ; solve the impedance equation ;