effective gain

The result indicates that the amplification factor is related not only to its physical dimension but also to material of the horn,and the amplification factor of ultrasonic transformer is maximum when the density of wide end is greater than that of narrow one and the length of the two horns are a quarter of .

从变截面杆波动方程出发,研究了半波长阶梯形变幅杆放大系数与几何尺寸及组成材料之间的关系。

The location of the control point is chosen at an assumed rock outcrop,and using direct stiffness method to compute the ratios of the displacement amplitude absolute values of the top of the ground to the ones of rock outcrop,that is amplifications.

文中控制点选在假想基岩露头,通过直接刚度法求解表面位移与控制点位移的比值,即放大系数。

P waves amplification of flexible space were analyzed by direct matrix method in frequency do- main.

控制点选在假想基岩露头,通过直接刚度法求解表面和底面位移与控制点位移的比值,即放大系数。

A general form of analytical solution of the seismic amplification is developed.

采用一维波动模型分析基岩上、受竖直向上传播的稳态剪切地震波激振下剪切模量沿深度按指数规律增长的场地土的横向自由振动问题,求得位移的闭合解,并由该解得到反映地震放大效应的场地的放大系数。

transistor-alpha meter

晶体管放大系数测定器

variable-mu hexode

可变放大系数六级管

amplification factor bridge

测量放大系数的电桥

On the Conditions of the Amplification Coefficient of the Voltage Series Negative Feedback Amplifier;

论电压串联负反馈放大器放大系数的条件

The Research on the Calculate Rigidity of Frame Beam and the Research on Amplitude Regulation Coefficient of Bending Moment Within Beam End;

框架梁计算刚度放大系数与梁端弯矩调幅系数的研究

Research on Response Modification Factor and Displacement Amplification Factor of Concentrically Braced Steel Frames

中心支撑钢框架的结构影响系数和位移放大系数研究

Inelastic displacement amplification factor for ductile structures with the same strength reduction factor

等强度折减下延性结构的位移放大系数

Probe into Dynamic Magnification Coefficient of Side Impact of Ships to Bridge Foundation

船舶侧向撞击桥梁基础的动力放大系数探讨

Moment Amplification Factors of Columns in Frame-Flexural Bracing Systems and the Overall Elastic Stability;

框架—弯曲型支撑体系中框架柱的弯矩放大系数及整体弹性稳定

Design of Data Acquisition System Based on CPLD and Float-point Amplifier;

带浮点放大器的CPLD数据采集系统设计

Probing into Open Math Exercises Teaching--Prat Three of Open Math Exercises;

数学开放题及其教学初探——数学开放题在师专大有作为系列之三

Practical application of data auditing on CEMS

大气污染源连续排放监测系统的数据审核

Three-Level Digital Power Amplifier Drive System of Magnetic Bearing;

磁悬浮轴承三电平功率放大器数字驱动系统

Design and Implement of High Capacity NAND Flash Memory Storage System with Open System Architecture

开放式大容量NAND Flash数据存储系统设计与实现

Harmonic Detection Virtual System of Methane Concentration Based on Digital Lock-in Amplifier

基于数字锁相放大器的甲烷谐波检测虚拟系统

Research on Multi-channel Data Acquisition System Based on Floating Point Amplifier

基于浮点放大技术的多通道数据采集系统

Use of History Quotation Methodology in the Study of Mathematics in Open University:One Case Study--the Formation of Real Number System

开放大学数学学习历史引入法范例(1)——实数系的形成过程

The system consists of amplifiers, a 12 bit A/D convertor, a PC/AT computer and system softwares.

该系统由放大器、模数转换器、微机和系统软件组成。