The channel defects with diameters between 50 μm and 150 μm in the seal area of flexible packages are detected using backscattered echo envelope integral imaging method.
将超声无损检测技术应用于软包装热封性能检测中,采用背散射回波包络积分成像技术,对塑料软包装封口处直径为50～150μm的6种通道型缺陷进行实验研究。
It was proved that: (1) the ampli-tude of backscattered ultrasound echoes changed with the tissue temperature,also done the wavelets coefficients; (2) the relationship be-tween the amplitude of backscattered ultrasound echoes and the tissue temperatures was the same as the relationship .
实验结果表明:(1)组织温度变化时其散射的超声回波幅值发生变化,超声散射回波的小波变换系数也发生变化;(2)超声散射回波的幅值变化和组织温度变化的关系与超声散射回波的小波变换系数变化和组织温度变化的关系相同;(3)生物组织温度在37～600C间,超声散射回波的幅值和超声散射回波的小波变换系数随温度上升而增大;生物组织温度在60～800C间,超声散射回波的幅值和超声散射回波的小波变换系数变化与温度变化没有确定的关系。
The mirror reflects light back to the scatter plate.
镜面把光反射回散射板。
The experimental research of tracking the hurricane with HF backscattering
高频返回散射台风跟踪技术实验研究
Characteristics of amplitude distribution of EM returns from two dimension fractal surfaces
二维分形粗糙面电磁散射回波的幅值分布特征
The Study of the Scattering Matrix Theory of the Recurrence Spectrum of NO in Strong External Magnetic Field;
强场中NO分子回归谱的散射矩阵理论的研究
Research on the Supersensitive Detecting Technology of Backward Raman Scattering Signal in Optic Fiber
光纤中拉曼散射回波超高灵敏度探测技术研究
radioactive fall-out( dust carried by winds around the earth after a nuclear explosion,etc)
放射性微粒回降（核爆炸等之后放射性尘埃随风散落到地面）
Electron backscatter diffraction research on recovery and recrystallization of purity iron processed by cold asymmetric rolling
异步冷轧纯铁回复与再结晶的电子背散射衍射研究
elastic scattering and inelastic scattering
弹性散射和非弹性散射
coherent scattering and non-coherent scattering
相干散射和非相干散射
This in turn could create a“ greenhouse effect” that would stop heat from radiating back into space.
由此就可以产生温室效应，阻止热量散射回宇宙中。
The manufacture of real-time radar echo simulator based on the scattering character of target
基于目标电磁散射特征的雷达回波信号实时模拟系统的研制
Empirical Mode Decomposition Algorithm Research & Application of Mie Lidar Atmospheric Backscattering Signal
Mie散射激光雷达大气回波信号经验模式分解算法的研究与应用
Matrix methods and coupled mode theory are applied to resonator structures such as distributed feedback lasers, tunable lasers and microring devices.
矩阵方法与偶合模式理论被提供来做共振腔结构，如分散式回授雷射、可调雷射及微环型元件。
light scattering profile
[布面]光散射分布
scattered radiation proximity indicator
散射辐射接近指示器
pha anomalous scattering
阿尔法射线的反常散射
Compton scattered gamma ray
康普顿散射伽马射线
backscatter ultraviolet radiometer
后向散射紫外线辐射仪
