查询词典 time of pulse

The rise time and fall time of the maximum pulse current both are less than 20μs.

在最大电流输出时，电流脉冲的上升与下降沿均小于20μs。

It is shown that this kind of film a-CdSe has an excellent photoelectric characteristics of instaneous response to picosecond laser pulse by testing the responsive time of those detectors using ultrashort light train pulses emitting from a colliding pulse mode -locking Nd:YAG laser.

用对撞脉冲锁模Nd：YAG激光器产生的超短光脉冲序列对探测器的响应时间进行检测，结果表明a-CdSe薄膜对皮秒10~(-12秒级的超短光脉冲作用具有良好的瞬态响应光电特性，探讨a-CdSe薄膜快速弛豫过程的内在机理。

Analyses show that refractive index changeinduced by thermal effect is similar to the change induced by other effects for linearabsorption,if laser pulse width is far less than the characteristic time of sample,i.e.refractive index change is directly proportional to spatial part of incident pulse laserintensity,so time averaged nonlinear refractive index can be defined.

结果表明，当激光脉冲宽度远小于被测样品的特征时间时，对于线性吸收来说，其热效应产生的折射率变化与其它效应产生的折射率变化有类似的形式，即与入射脉冲激光光强的空间部分成正比。因而可定义时间平均非线性折射率。在这种情况下，可用通常的Z-scan法进行非线性折射率及热光系数的测量，所得结论符合以前的实验结果。

This research uses high sensitive piezoelectric sensor for developing a sensitive sphygmograph to detect anthropic pulse and to determine parameters to diagnose physiology of human. From spectrum of pulse, the analysis processes are to determine the high pass frequency used in the analysis, uses the IIR Buttorworth filter to remove the noise, to calculate the Hermite curve for filtering the oscillation parts caused by breathe, then to calculate the parameters in strength, time and angle domains from the processed signal to study their correlation with the physiology of the studied experimenters and compared the results with the machine from the market.

中文摘要本研究采用高灵敏度压电感测元件，发展敏锐的脉搏感测仪器，量测人体手腕脉搏波形，计算其中所包含之参数来探讨与研究人体生理状况相关性的适用性；藉由分析脉搏频谱成份并使用Buttorworth滤波器过滤高频杂讯，再使用Hermite方程式去除手腕低频振动杂讯，由过滤后的脉搏讯号萃取振幅强度、波形上升与下降时间、上升与下降角度等参数，经由统计分析探讨与人体生理之情况相关性，并将所获得指标结果与市售仪器所量测之数据变化进行比较。

The role of a-Si:H sublayers is to interrupt the continuous growth and limit the thickness of pc-Si:H sublayers. The a-Si:H sublayers are deposited by two methods, one is fabricated by low hydrogen dilution ratio R = 4, and the second is deposited by pulse-wave modulation plasma with turn-on time (TON = 25 ms) and plasma turn-off time (TOFF = 75 ms).

阻断层所用的非晶矽薄膜采用两种方式制作，第一种是利用低氢稀释比(R = 4)制作的非晶矽，第二种是利用脉波调变电浆开启时间及开关时间分别为25ms及75ms pulse(25ms/75ms所制作的非晶矽。

The experiment on electromagnetism pulse biology effect could suggest that quantities-effect of EMP effect on system morphemic and function with applying different frequency, power and expose time. Combined with epidemic investigation and medical psychological research in EMP researcher, the immediate, early stage and middle and long-term biological effect of EMP was elucidated and EMP protection standard was established.

电磁脉冲(electromagnetism pulse，EMP)生物学效应实验是通过应用不同频率、功率、暴露时间的EMP照射动物，明确EMP所致各系统形态和功能危害的量效关系，探索其效应机理；并结合对EMP从业人员的流行病学调查和医学心理学研究，揭示EMP所引起的即刻、早期、中期和远期生物学效应，提出EMP卫生防护标准，为物理防护和医学防护的研究提供重要的理论依据和实验依据。

First, a model of transformer has been built and analysed to formulate the expression of pulse on the load capacitor, which can demonstrate the influence of major parameters of transfomer on the charging time and efficiency of energy-transmitting. The influence of output pulse when the resistor of circuit is being took into account also has been analysed by the means of circuit simulation and approximate solution of circuit equation. The efficiency of energy-transmitting under dual nonresonant condition has been analysed and the parameters of transformer has been decided.

首先，对空心变压器的理论模型进行了分析，在得到了输出脉冲电压的表达式的基础上分析了变压器各主要参数对脉冲充电时间和充电时能量传输效率的影响；同时还通过近似求解状态方程的方法对考虑线路电阻时输出脉冲受到的影响进行了分析；讨论了在非双谐振情况下的能量传输效率的问题。

The appropriate propagation delays are 4.0ns for the unclamped pulse, and 4.8ns for the clamped (2X overdrive) pulse yielding an overdrive recovery time of 800ps.

适当的传播延迟为4.0ns的钳位脉冲，并4.8ns的钳制（2倍过载）脉冲产生的800ps过驱动恢复时间。

In each period, LD lights in advance of the time of the output laser pulse occurrence and quenches behind the laser pulse.

在每一个周期中，激光二极管在输出激光脉冲前的某一时刻打开，在输出脉冲后的适当时刻关断。

At the same time the effection of some important recombinations are discussed and the relation of photoconduction versus time is given. In chapter 4, Auston circuit, blumlein pulse forming line, multiplier of pulse forming line are introduced and give their differentiates.

在第四章中，分析各种以光导开关为核心器件的电脉冲成形电路：Auston电路、Blumlein脉冲成形线、层叠线倍压器，对其输出转换效率进行比较，并进行实验研究。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。