查询词典 exponential decay

Starting with some basic assumptions about natural kinds, he derived an exponential decay function as the form of the universal generalization gradient, which accords strikingly well with a wide range of empirical data.

从关於某些自然种类的基本假设开始，在普遍化梯度的形式上，他得出了一种指数的衰退功能，明显地与广大范围的经验数据相符合。

An exponential decay expression of the bulk moisture concentration of pressboard during drying process is presented.

研究表明，除湿速率表现为振荡衰减过程，其原因与纸板结构及环境气氛有关。

In the method of space constant, the relation between inter-electrode distances and correlation coefficients were fitted to two exponential decay curves.

在空间常数的方法上，我们采用两个指数递减之曲线，分别对不同电极间距之相关系数回归。

Based on numerical calculation, ground movement of underground explosions are analyzed quantatively showing that the maximum velocity of ground particles is subjected to exponential decay laws.

以数值计算为基础，定量分析地下爆炸的地表运动，得到地表最大质点速度的指数衰减规律。

During most of the drying stage, the inner temperature of the castock basically remained around 70℃.An exponential decay equation can be used to simulate the dynamic drying process of the high moisture MSW.

在白菜茎整个干燥过程中，其内部的温度基本上维持在70℃左右；指数衰减方程能够较好地体现焚烧炉条件下高水分垃圾的干燥规律。

The decay process of fluorescence intensity was detected and the curve was fitted by an exponential function.

在荧光光谱峰值波长处分别监测其荧光强度随时间的衰变过程，将获得的荧光衰减动力学曲线采用指数拟合并进行解卷积处理获得不同荧光光子的寿命值。

For Permalloy/FeMn bilayers, the exchange field and coercivity decay exponentially in time with the application of an applied field antiparallel to the unidirectional anisotropy direction. The relative change of the exchange field, 1-H〓/H〓(t=0) also decays in an exponential manner with the FeMn layer thickness.

通过Py／FeMn双层膜结构研究了反铁磁层的厚度对交换耦合热稳定的影响，发现对于Py／FeMn双层膜，在外场方向与单向各向异性方向反平行时，交换偏置场和矫顽力随时间的变化呈指数衰减，耦合场和矫顽力的相对变化随FeMn层的厚度衰减。

In this chapter, not only Extensed ACD Model, which took higher-order moments、 strict stationarity、 geometric ergodicity and a-mixing property with exponential decay as its sufficient and included most of the present forms of ACD Models was expounded, Box-Cox transformation was carried out by figurate the parameter of ?

尽管关于ACD的实证研究已经十分丰富，却很少有人把注意力放在条件期间模型设定的测试上，本章探讨了关于ACD模型统计性质研究的最新成果，并研究采用两步法来测试条件期间模型的误差项的分布，第一步包括通过QML估计条件期间过程，以获得误差的一致估计；第二步衡量基准密度的参数和非参数估计与残差的风险率函数之间的紧密度。

Further picosecond PL studies on dendronized PFs show that the fluorene-based emission in dilute solution follows a single exponential decay, whereas those in thin film decayed in a multi-phase manner and the lifetime prolongs with the generation of dendronization. These observations are discussed in terms of dispersive transport happening between adjacent chains in film. The dispersive relaxation can be controlled by site isolation of bulky dendrons. Our results prove that dendronization is highly effective in controlling the inter-chain interactions of fluorene-based polymers.

不同代数树枝化聚芴的时间分辨荧光动力学研究结果表明，溶液状态下的发光为单指数衰减行为，而薄膜状态下的发光为多指数衰减行为，且其发光寿命随树枝化代数增加而增长，表明树枝化基团抑制了邻近的聚芴分子之间能量传递所致的激发态能量耗散。

Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and beta decay until a stable nucleus is achieved.

放射性系：四组不稳定的重原子核，通过一系列α衰变和β衰变直至达到稳定的核为止。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。