1) Exponential decay coefficient
指数衰减系数
1.
Exponential decay coefficient Cz in coherence function of fluctuating wind velocity is obtained from wind tunnel test.
得到了脉动风空间相干函数中指数衰减系数Cz的风洞试验结果。
2) exponential decay
指数衰减
1.
First the image was transformed into diagonal one,reserving the correlations between variations of rows and those of columns of the image,then an image with definite size was obtained by using wavelet transform,and finally the susceptivity of algorithm to the change of illumination was reduced by using exponential decay strategy.
先将图像对角化表示,保留图像对角方向结构信息;再通过小波变换得到一定尺度的图像;最后利用图像灰度的指数衰减策略,降低算法对光照等变化的敏感性。
2.
Moreover,by study the asymptotic behavior of solutions for the ablve problem,that the energy is exponential decay in time was.
并且通过研究解的渐近行为,证明了能量随时间是指数衰减的。
3.
In this paper, we study the existence, uniqueness and exponential decay of the global solution for the systemwith initial conditionsHere |·|2 is the norm in L~2(0,L) , u is the transverse displacement of the string, d is the temperature and M,N and R are real nonlinear functions.
2)在不同的边界条件下强解的存在,唯一和指数衰减性。
3) attenuation index
衰减指数
1.
The attenuation rate η of stress peak is discussed and the attenuation indexes α within different stress range are given.
利用轻气炮平板碰撞试验 ,对新加坡BukitTimah花岗岩试样进行冲击压缩试验研究 ,根据实验数据研究了应力波的传播 ,用四次多项式表示了应力波峰值随传播距离的衰减规律 ,讨论了应力波峰值的衰减率 η和不同应力范围的衰减指
4) exponentially decaying
指数衰减
1.
It is characterized a Riesz basis associated with an exponentially decaying mask in term of refinement function and two-direction wavelets.
在指数衰减情况下,研究双向加细方程在L2稳定解的存在性,得到双向多辨分析紧支撑小波的Riesz基完整刻划。
2.
We use the implicit function theorem to prove that the zeros are continuable, and that the continuations are exponentially decaying.
我们给出定义在R×l~∞空间上的映射的零解延拓定理：应用隐函数定理证明零解可延拓，再进一步证明延拓后的零解具有指数衰减性。
5) exponential attenuation
指数衰减
1.
An exponential attenuation model of main peak about white noise\'s ambiguity function is analyzed,and the numerical formula of the model is deduced.
分析适用于模糊区与近似清晰区的白噪声模糊函数中心主峰附近的指数衰减模型,推导了模型参数的数值计算公式。
6) attenuation coefficient
衰减系数
1.
Measuring the ultrasonic attenuation coefficient of flyash scale in the transport pipeline;
输灰管灰垢声衰减系数的测定
2.
Experimental study on integrated attenuation coefficient of organic contaminant (COD_(Cr)) in upper reaches of Hanjiang River;
汉江上游有机污染物COD_(Cr)综合衰减系数的试验确定
3.
Experimental research on attenuation coefficient model of low-frequency wave in oil layer;
低频波在油层中衰减系数预测模型的实验研究
补充资料：电离辐射衰减系数
电离辐射衰减系数
ionizing radiation attenuation coefficient
式中/0为没有防护层(d=0)时的电离辐射强度;I是防护层厚度为d时的电离辐射强度;刀为电离辐射衰减系数。如果d以线性厚度厘米为单位，则召以厘米一’表示。 刀是物质防护能力的度量。召值的大小取决于防护层物质的特性和电离辐射的能量。物质的月值越大，防护性能越好。物质的防护性能常用衰减倍数K表示。衰减倍数是屏蔽前的剂量D。与屏蔽后的剂量D之比，K二D0/D。将单向粒子流的辐射量减少到初始值一半时的减弱层厚度，称为半厚度，亦称半值厚度或半值层，记作心:。dlZ=住693/拜(厘米)。某些物质对早期核辐射Y射线和中子流的半厚度如表所示。 几种物质的半厚度单位:厘米卜洲扭 已知防护层厚度d和半厚度叭2，可计算其衰减倍数K: K=2脚rtllZ=2”式中n为防护层物质的半厚度数，n=d/试2。反之，为获得预定的衰减倍数K，可按公式n一InK/0.693来计算半厚度数n。根据防护层厚度斌半厚度峨:、衰减倍数K及通过防护之前的剂量D。可计算出工事内核辐射剂量D: D=几(l/酬=几K一‘ (陈冬英)dionli fushe shuaiiian xishu电离辐射衰减系数(ionizing radiationattenuation coefficient)电离辐射通过介质时强度相对变化的表征量。军事上常见的日粒子、Y光子之类的电离辐射通过物质时，它的强度近似按指数规律衰减: I=去e一召d
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参考词条