1.
Objective:To study the diagnostic role of broadband ultrasonic attenuation(BUA) in measurement of bone mineral density.
目的： 探讨跟骨宽带超声衰减诊断骨质疏松的临床价值。
2.
FDTD Simulation and Implementation of Ultra Wide Band Miniaturized M-IDG Attenuator
M-IDG结构小型超宽带衰减器的FDTD仿真和实现
3.
DC to 20 GHz Broadband MMIC Digital Attenuator
DC～20GHz宽带单片数控衰减器
4.
Ultrasonic Density Meter Design Based on Ultrasonic Echo Attenuation Theory
基于超声波回波衰减理论的超声波浓度计设计
5.
Ultra-Wideband Wireless Communications and SAW Wideband Signal Processing Technology
超宽带无线通信与声表面波宽带信号处理技术
6.
Study on a GaAs MMIC Wideband Low Phase Shift Digital Attenuator
GaAs MMIC宽带低相移数控衰减器芯片的研究
7.
Study of Ultra Wide Band Low Noise Amplifier with CMOS Process;
超宽带CMOS低噪声放大器的研究
8.
Design of an Ultra-wideband LNA in 0.5～3.3GHz
0.5～3.3GHz超宽带低噪声放大器设计
9.
Design of a 3～10 GHz Ultra-Wideband Low Noise Amplifier Based on SiGe HBTs
3～10GHz SiGe HBTs超宽带低噪声放大器的设计
10.
The Fundamental Researches of Computerized Tomography of Ultrasonic Attenuation for Concrete
混凝土超声波衰减层析成像的基础项目研究
11.
DROPLET SIZING OF SUBMICRON EMULSIONS BY ULTRASONIC ATTENUATION AND VELOCITY SPECTRA
超声衰减和速度谱测量亚微米乳液的粒径
12.
Broadband Supercontinuum Generation in a Dispersion-flattened and Decreasing PCF
利用色散平坦渐减PCF产生宽带超连续谱
13.
sound attenuation
消声器（噪声衰减装置）
14.
Effect of structure and composition on ultrasonic attenuationand velocity of polymer has been studied by pulse-echo method.
用脉冲回波法测定了甲基丙烯酸酯类共聚物的超声衰减与声速。
15.
Numerical study on acoustical attenuation and acoustical velocity in suspension of superfine particles-A comparison of four models
超细颗粒悬浊液中声衰减和声速的数值模拟——4种模型的比较
16.
ULTRASONIC VELOCITY AND ATTENUATION COEFFICIENT, DENSITY AND ADIABATIC COMPRESSIBILITY OF PETROLEUM ETHER UNDER HIGH HYDROSTATIC PRESSURE
石油醚在流体静高压下的超声声速、衰减、密度和绝热压缩系数
17.
The numerical study of acoustical attenuation and velocityin the suspension of superfine particles
超细颗粒悬浊液中声衰减和声速的数值分析研究
18.
New Broadband Array Ultrasound Transducer Design Use in Medical Diagnosis;
用于医学超声诊断的新型阵列超声换能器的宽带基阵设计方法