衰减

According to the Weisskopf-Wiger theory, the spontaneous emission decay in the free space is following an exponential decay law with the constant decay rate.

在第二章中，主要研究了多层结构中二能级原子非马尔科夫自发衰减过程的记忆函数。

Compared to the experimental measurements, good agreement is obtained near threshold region. It is shown that the fluctuations of the fundamental and second harmonic light in the laser field decrease as the cavity decay constant increases.

研究结果表明，激光场基波和二次谐波的涨落随空腔衰减常数的增大而减小；当激光场中含有乘性噪声时，乘性噪声能增强基波的涨落，同时抑制二次谐波的涨落。

With increasing of the noise strength, the height of the current peaks will decrease, and the width will increase: a similar change will appear when we increase the decay constant of the noise.

随噪声强度的增加，电流共振峰宽度增加，高度降低；增加噪声衰减常数会有类似现象发生。

Decay constant k of Surface Dynamics of the modified surface can be calculated using the measurement results of the contact angle and the angle - dependent XPS, being a probe, k values can be used to characterize the surfa...

通过PET表面的接触角及F/C比的测定，计算出表面动力学衰减常数k，三种测试方法得到的k值都可以用来表征碳氟等离子体处理PET的表面动力学行为，其中混合气体的k值最小。

The results indicate that the operational cost at DO of 0.9mgL is the lowest,which has great diversity compared with the conventional view that DO level should be maintained above 2mgL.The assumption that the decay rate constant Kd is not affected by DO is not rational either.

结果表明，DO为0.9mgL时所需运行费用最少，这与主张应当维持DO浓度大于2mgL的传统观点相比相差甚远衰减速率常数Kd不受DO影响的假设也不合理。

The prompt neutron decay constant was measured by using reactor noise technology at delayed criticality for 300# pool research reactor.

利用反应堆噪声分析技术测量300#池式研究堆缓发临界下的瞬发中子衰减常数。

Cladding field has been constructed by using the accurate functional form with two approximate parameters:the transverse decay constant in the cladding and the field value at core-cladding interface,which are already known.

包层场用修正贝塞尔函数以及已经求得的两个参量：包层径向衰减常量和场在纤芯-包层界面上的值重新构建。

Contact angle ; angle - dependent XPS ; CF4/CH4 plasmas ; decay constant k of surface dynamics

接触角；变角XPS ； CF_4/CH_4等离子体；表面动力学衰减常数k

The time when image sticking happens depends on the luminance decay curve of the display.

影像滞留的持续时间，跟显示屏的亮度衰减曲线有关。

The excitation, photoluminescence and afterglow spectra as well as the curve of afterglow decay were investigated.

测量了其激发、发射光谱及余辉衰减曲线。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。