查询词典 exponential decay

In this study, for the complicated distribution of dose rate in time and space, considering the repair of the sub-death cells, the radionuclide decay law and exponential proliferation of clonogenic cells, the dose-response relationship is built based on the known linear-quadratic model, and the concept of tumor control probability is introduced into the therapy method. Furthermore, the concepts about "curable stage" and "critical time point" and the methods calculating the amount of radionuclide injected into tumor in clinical are proposed.

本课题针对这一方法中靶区复杂的剂量率时-空分布特点，以公认的"线性-二次模型"理论为基础，同时考虑亚致死性细胞修复、核素衰变规律和克隆原性细胞指数增殖，建立了适合这一治疗方法的具有时-空分布特点的剂量效应关系，并进一步将肿瘤控制概率的概念引入这一方法中，提出了"治愈期"及"临界时间点"的概念以及由此指导临床确定药物注射剂量的方法。

There is no glow peak from Dy3+. The decay characteristics of phosphors Y2O3:Eu3+0.01,Dy3+0.01 accord to Double exponential distribution.

热释光谱分析表明Y2O3：Eu3+0.01 中存在陷阱能级，但其没有余辉，即存在陷阱能级的样品不一定就会长余辉发光。

This ensures that the impulse response will decay exponential with time.

这确定了脉冲响应将会随时间以指数形式衰减。

Downward wave amplitude decay in negative exponential function, but the upward wave amplitude is not the case.

下行波的衰减规律符合指数衰减，但上升波的衰减并不符合这一规律。

Exponential growth and decay.

指数增长和减少。

Polynomial, first order decay exponential and wide kelvin-vogit models were used to fit material creep curves.

采用蠕变和粘弹性材料模型进行热压仿真分析，对仿真结果进行对比，选择热压仿真的材料模型。

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。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。