脉冲波

To explain the time-resolved fluorescence depletion, we develop a dynamics theory of spectroscopy for a vibrational relaxation process, and a decay rate constant of the vibrational state on the excited electronic state is taken to be 〓〓 in which γ is vibrational relaxation rate constant of the transition 0→1 and k〓 is the Boltzmann constant.

电子激发态上的波函数可写作〓相比于以前密度矩阵理论的布居表象，本文所提出的波函数表象理论为在更本质的层次上揭示振动弛豫过程的物理图象，特别是研究超短脉冲激发下含有振动弛豫的动力学光谱创造了条件。

At the same time, new information about the underwater target can be got and the detectability can be increased.

在机载激光探测水下目标过程中，若采用偏振激光代替激光脉冲进行探测，不但可以压缩回波信号的动态范围，减少水面回波的影响，而且还能增加新的信息和可探测性。

In this paper, the Bistatic scattering coefficient from one - dimension Gaussian perfect conductor random rough surface is computed by the Moment method in Dirichlet boundary condition, and the basis function is taken as the pulse function and weighting function in the point matching method.

采用矩量法计算狄利克莱边界条件下一维高斯型随机粗糙面的收发分置的散射系数，运用脉冲基函数和点匹配的矩量法，在入射波为锥形波的条件下，分析了两种频谱函数下的仿真结果。

And the design principle of transmitting wire and pules source with high frequency can be provi ed.

脉冲电磁波的传输特性在高频条件下对火花放电的影响很大，本文运用传输线理论研究电火花加工极间间隙内脉冲电压及电流波的传输行为，为电源和传输线设计提供依据。

The influence of two parameters, frequency and pulse width ratio of wave pulse brush plating speed about, is studied on the base of experiment in this paper.

在低频范围内，通过试验研究了矩形波脉冲频率 f，脉冲宽度比 B对刷镀速度的影响规律。

This experiment was in a creative way to adopt the high pressure and square wave to drive the electric light Q-Switch, achieving dual-wavelength、dual-pulse Cr:LiSAF tuneable laser output.

为实现单光束、双波长、双脉冲Cr：LiSAF调Q激光输出，实验中创造性地采用高压方波驱动电光Q开关实现了双波长、双脉冲的Cr：LiSAF可调谐激光输出。

In this study, in utero transfection plasmid DNA method was set up to embryonic mouse. The GFP expression vector pCAGGS-IRES-EGFP was microinjected into the lateral cerebral ventricle of E 14.5d mouse embryos through the uterine wall. Then, the 30 V square-wave pulse was delivered across the head for 5 times and interval 50m sec by electrodes in parallel with the median raphes.

本研究旨在通过子宫内电穿孔法，建立鼠胚大脑皮层体内基因转移体系：将带有绿色荧光蛋白的表达载体pCAGGS-IRES-EGFP显微注入胚胎期14.5 d的鼠胚侧脑室中，电极沿与脑中缝平行的方向夹持鼠脑，在电压30 V，脉冲时间50 ms，脉冲数5的条件下方波电击，将外源基因转移到室管膜层细胞。

Current waveforms of the system without and with the line trap ...

对比阻波器投入前后的电流波形，由1个峰值大且陡的尖脉冲变成了2个平缓的尖脉冲，且电流峰值、3次谐波分量、零线电流都减小，改善了设备运行的工况，保证了继电保护动作的正确性和供电系统的安全稳定运行。

It centers mainly on the difference between pulse cyanide silver coating and DC cyanide coating in appearence, micromorphology and anti-sulphur ability.

用霍尔槽实验法初选了氰化物溶液中方波脉冲镀银的工艺参数范围，进而用组合实验确定出了最佳的脉冲周期、占空比和平均电流密度。

The performances of Kodok 9740, Kodak 9860, pentame-thylidyne dye and two new dyes HIE 1301, and HIR 1302 are compared by the intensity and time-resolution properties of signal waves, and the output characteristics of the laser by using these dyes in an active-passive mode-looked Nd3+:YAG laser are reported.

本文报道了几种可用于钕激光锁模的快速饱和吸收体中ps光脉冲的简并四波混频，利用信号光波的强度和时间分辩特性，比较了Kodak 9740，9860、五甲川和两种新染料HIR1301，HIR1302的性能，首次给出了新染料的弛豫时间，并比较了这些染料直接用于主被动锁模激光器时输出光脉冲的性能。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。