衰减的

The transient is seen to be a decaying exponential, and the commonly used measure of the speed of decay is the time constant

由图可见，瞬态响应为指数衰减的，通常用时间常数来衡量其衰减速度。

The transient is seen to be a decaying exponential, and the commonly used measured of the speed of decay is the time constant: The time constant is the time in seconds for the decaying exponential transient to be reduced to e-1=0.368 of its initial value.

瞬态解看上去为指数衰减的，且通常用于衡量衰减速度的是时间常数：即指数衰减的瞬态解衰减至其初始值的 36.8%所需的时间。

Based on the latest intensity data of North China that include 48 earthquakes and 139 isoseismal lines, the attenuation relationship of seismic intensity is obtained.

除了(1)式之外，有的研究者还采用了如下形式的经验公式：I=A+BM-ln(R+R0)+ε(2)由于地震烈度衰减规律是通过对烈度数据进行统计回归而得到的，而使用衰减关系式进行的直接回归会存在种种不足，因此，前人根据地震烈度衰减的特点提出了不同的统计模型和方法。

At the same time, under the condition of small strain, firstly, the secant shear modulus was always larger than the tangent shear modulus. Secondly, when the logarithmic coordinates were applied to describe shear strain, the decrease of shear modulus with shear strain could be expressed by reversed S shape curve with two inflexion points, and through analyzing and validating, the deduced equation could perfectly reflect this characteristic. Finally, different stress paths and strain areas would lead to different attenuation trends.

而且，在小应变范围内，割线剪切模量总是大于切线剪切模量；当剪切应变采用对数坐标表示时，剪切模量随着剪切应变的增加而衰减，且衰减的规律都可以表示为带有两个拐点的反S型曲线，经分析验证本文所得公式3可以对此特性进行很好地反映；但应力路径、应变范围不同其衰减幅度不同。

For the low linear saturation threshold of photoelectric detector,a new and reliable method used in diagnostic system is introduced to attenuate high energy laser power density using multilayer dielectric coating.

针对环形光刀取样式高能激光束在线测量系统应用中光电探测器线性饱和功率密度低而被测高能激光功率密度高的特点，采用对取样激光扩束和介质膜衰减片级联衰减的方式，实现了数千倍的线性光强衰减。

So in fact, if they senesce just a tiny tiny bit over time -- that is, if their half-life gets shorter, very very slowly -- we wouldn't actually be able to tell that this was happening in the time that we took our measurements, because the acceleration in the rate of atoms decaying (relative, of course, to the number that had not decayed already, which is always decreasing) would be too tiny to be statistically detectable.

所以在事实上，如果它们随时间衰老得只那么一点点，—就是说，如果它们的半衰期缩短得非常慢—那么我们实际上不可能知道，在我们测量期间发生过衰减，因为原子衰减的速率加速得太小，统计学上检测不出（当然，是相对于不曾衰减的数目而言，不曾衰减的原子数目总是在减少）。

Based on the analysis of absorption characteristic of desensitizing dye the free photoelectron decay curves of desensitized silver chloride emulsion exposed by 532nm are measured by microwave absorption and dielectric spectrum detection technology.

在对减感染料的吸收特性进行分析的基础之上，利用微波吸收介电谱检测技术测量了减感后氯化银乳剂在532nm波长曝光下的光电子衰减曲线，通过分析减感染料对光电子强度和衰减的影响，发现在光谱增感波段减感染料通过与增感染料相互竞争的吸(来源：A17B7464C论文网www.abclunwen.com)收光而影响光谱增感乳剂的光电子强度，并且减感染料通过俘获光电子使光谱增感乳剂的光电子的衰减变快。

Then we discuss the loss model of the tellurite glass and try to give a practicable way to reduce the loss of the fiber.

根据衰减理论模型分析了碲酸盐玻璃光纤的衰减和降低衰减的途径或方法。

In order to obtain the environmental vibration's characteristics of attenuation with distance and that of frequency in test study, a good many of tests is carried out on propagation and attenuation of environmental vibration for typical zone of the Pearl Line.

在实测研究方面，为得到高架轨道交通引起环境振动的距离衰减规律以及振动衰减的频率特性等，针对上海市明珠线高架轨道交通的典型线路区段，进行了大量环境振动实测及其传播和衰减规律研究。

In the BNR system (SRT=15 d), the cell death was responsible for 45% of the total cell decay for nitrifying bacteria, and thus the activity decay accounted for 55% of the total cell decay.

在BNR系统中（SRT=15 d），硝化细菌在衰减过程中由细胞死亡引起的衰减约占细胞总衰减的45%，由活性降低引起的衰减约占细胞总衰减的55%。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。