脉冲

We also designed the timing circuit board to driver the MOSET and the network control system based on the probably fill mode in the future and the RF system of the storage ring in HLS. The high reverse overshoot exists in the current pulse with the pulse width of 60 ns. Further study is necessary to eliminate the reverse overshoot and to search the proper techniques on modulability of light pulse interval in HLS.

根据未来光源储存环可能的填充模式，以及光源储存环高频系统的特性，设计了MOSET开关驱动控制系统的时钟试验电路，和以太网控制试验电路，即将投入加工。60ns脉宽的脉冲电流，存在较大的反向过冲，需要进一步研究合适的反峰削除技术，以及可用于光源脉冲可调性的合适技术。

We also studied the probability of modulability of light pulse interval in HLS. In 3 years, we have studied the modulators with the switch of thyratron, IGBT and MOSET etc. They are the comparisons between the waveforms, characteristic tests of ferrites made in China, the driver system of MOSET and the design of kicker magnet with the network mode, which have been studied.

三年来，利用重氢闸流管、IGBT、MOSET等开关的调制器，试验能否这样高重复频率快电流的脉冲功率技术，着重进行了脉冲波形成形比对试验研究，国产高频铁氧体性能测试，MOS管驱动控制与网络型冲击磁铁的设计研究。

It is one of the most important components in HV pulse modulator.

脉冲变压器是高压脉冲调制器的重要器件之一。

An optical method for UWB monocycle pulses generation based on pulse compression in single mode optical fibers is proposed and simulated.

本文提出了一种基于全光纤脉冲压缩的超宽带单周期脉冲的光学产生方案，并进行了模拟仿真验证。

A pair of polarity-reversed UWB monocycle pulses is achieved by locating the probe carrier at the positive and negative linear slope of the filter, respectively.

首先利用T-XPM效应实现了超宽带monocycle脉冲，滤波器选择蓝移和红移分别得到一对极性相反的monocycle脉冲。

Using retriggerable monostable multivibrators to provide the trigger signal and double MOS driver to drive the LD, with a lot of experiments, emulations and comparisons, the variable frequency, pulse width and power driver circuit is designed. And the pulse frequency and width can be changed easily for its situations.

然后用电子多频振荡器提供驱动信号，用双MOS驱动器来驱动半导体激光器，通过大量的实验、仿真、分析、比较，设计出了方便可调的大功率LD的驱动电路，该电路的脉冲频率和脉冲宽度可方便调整。

Finally, there is a part of the generated pulse Multivibrator Based on square wave can be generated, you can use it to generate a pulse signal.

最后还有一个部分就是脉冲的产生基于多谐振荡器可以产生方波，就可以利用它来产生脉冲信号了。

The time delay (T1) that NAND gate 403 takes to generate a falling edge in VIN plus the time delay (T2) that a falling edge in VIN takes to propagate through pulse width generator 404 to VOUT plus the time delay (T3) for flip-flops 401 and 402 to generate falling edges in the UP and DN signals after a falling edge in VOUT equal the minimum pulse width of the UP and DN signals (T1+T2+T3=MPW).

NAND门403在VIN中生成下降沿的时间延迟(T1)加上VIN中的下降沿通过脉冲宽度发生器404传递到VOUT的时间延迟(T2)再加上触发器401和402在VOUT中的下降沿后在UP和DN信号中生成下降沿的时间延迟(T3)等于UP和DN信号的最小脉冲宽度，即(T1+T2+T3=MPW)。

The results indicated that EMP can promote necrosis and apoptosis of hippocampal neurons,induce morphological changes in blood vessels, neuroglia cells and neurons at early stage, which may be the possible injury mechanism in rat brain induced by EMP.

表明大鼠大脑受电磁脉冲辐照后早期海马区可发生神经细胞坏死和凋亡，以及各组织成分的病理形态学改变，上述变化可能与电磁脉冲致细胞DNA损伤有关。

The pre-programmed PIC supplies a 3.5 second current pulse to the nichrome wire igniter then a 2 second pause followed by another 3.5 second current pulse as a backup function.

该预先编程的事先知情同意用品一三点五秒电流脉冲到nichrome线点火，然后2秒暂停之后由另一3.5秒电流脉冲作为备份的功能。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。