Study on attenuation of strong surface wave in wavelet domain;
小波域强面波衰减方法研究
Frequency spectral analysis for the ultrasonic attenuation of carbon fiber reinforced plastics;
碳纤维复合材料对超声衰减的频域分析
Anisotropy test instance of ultrasonic velocity and attenuation of coal sample;
煤样的超声速度和衰减各向异性测试实例
The declines of both the UF membrane flux and solute permeation coefficient,and the influence of sodium ions on the membrane performance during the ultrafiltration process of cephalosprin C sodium solution were studied.
以头孢菌素C钠盐的水溶液为对象设计实验,考察了板式膜的膜通量和溶质透过率的衰减现象,以及钠离子对膜的影响。
The decline of the flux of the flat membrane and the permeation coeffecient of solute,and the influence of sodium ion to the membrane,with cephalosprin C sodium solution as a model solution, has been investigated.
以头孢菌素C钠盐的水溶液为对象设计实验,考察板式膜的膜通量和溶质透过率的衰减现象,以及钠离子对膜的影响。
An analytical math model was established basing on three form and decline of biological memory and was used in intrusion detection system.
以生物记忆的三种形式的形成与衰减为基础建立一种数学分析模型,并将此应用到入侵检测中去。
Existence and Decay Behavior of Solutions for a Parabolic Problem;
抛物型方程一类初值问题解的存在性和衰减
In the present paper, research methods, photoelectron creation and decay, photoelectron traps, the influence of intrinsic and extrinsic traps for electrons on their lifetimes and decay processes, and the relationship of photoelectron behavior with other physical properties were reviewed.
卤化银乳剂微晶体的光电子行为是影响照相感光度的重要因素,本文就光电子研究方法、光电子衰减、电子陷阱、本征与外来带电中心对光电子衰减与寿命的影响以及光电子行为与其它物理性质的关系等方面加以综述。
This paper deals with the degradation law in marine ropes.
本文研究海上用绳索衰减性能的规律。
We have a light-induced degradationtest on a-Si:H solar cell, and show the improvement on device performance by current injection andheat annealing.
讨论了影响非晶硅太阳电池稳定性的因素,介绍了改善非晶硅材料稳定性的方法,进行了非晶硅太阳电池光致衰减测试。
Crystallization of organic thin films is one of the main degradation mechanisms of organic light emitting diodes (OLEDs).
有机薄膜层的结晶是有机电致发光器件衰减的主要机理之一。
When the water amount was small there was almost no performance loss, as the water amount increasing the degradation became serious.
当电池贮水量较小时,电池的性能衰减不明显,随着贮水量的增大电池的性能损失随之增大;通过对冰冻循环过程中电化学阻抗谱的测定发现在8次循环中电池的欧姆电阻都没有明显改变,但体现电荷转移电阻和电池内扩散电阻的高频圆弧半径随循环次数明显增加;从循环伏安测试结果可以看出催化剂的电化学活性表面积没有明显减小,因此推断电池性能衰减主要来自于催化层扩散阻力增大。
The loss of fiber and its even property are vital indexes for evaluating fiber quality.
光纤的衰减及其均匀性是衡量光纤质量的一项重要指标,但其测试困难且很不方便,本文提出了一种分析光纤衰减及其均匀性的方法,并设计出基于该分析方法的一种测试工具,即通过利用光时域反射仪OTDR测试光纤数据,再将此数据通过GPIB接口传送给微机系统进行分析处理和保存。
In addition, we get the relation ship of optical loss and disengaging value.
本文讨论了脱空产生成因及分布式传感光纤实现脱空检测的机理,提出了在钢管中分布式传感光纤的布置形式,并进行了模型试验,得到重要规律,拟合出光衰减与脱空开度关系的曲线及公式。