电子脉冲

We introduce the effect of thunder and lightning electromagnetic pulse on electronic information system in this paper and give protection ways of electronic information system from thunder.

介绍了雷电电磁脉冲对电子信息系统的影响，通过分析给出电子信息系统防雷方法。

Our studies showed that the PADs in few-cycle laser pulses were determined by the kinetic energy of photoelectrons, the absolute phase of the carrier wave, and the ellipticity and the duration of the short pulses.

我们用三模的激光场来模拟超短激光脉冲，对超短激光脉冲与惰性气体原子的相互作用进行了系统的研究，成功地展示了绝对相位对光电子能谱及角分布的影响。

The transform of heavy metal with the change of temperature utilizing the software-FactSage was simulated; the power of free electron was calculated and the mechanism of organic pollutants decomposition by pulse discharge was analyzed.

本文还利用FACTsage软件对重金属的迁移进行了模拟，研究了不同重金属的存在状态随温度变化的改变情况；计算了脉冲放电产生的高能电子的能量，对脉冲放电降解有机污染物进行了机理分析。

The pulsed controller, with micro-controller unit as the core, light emitting diodes and keyboard as the man-machine communication interface, has been designed and developed in combination with electronic technology, automation theory and MCU technology.

本文利用电子技术、自动控制理论及单片机技术，设计并制造了直流电焊机双丝脉冲控制器，以单片机为内核，数码管、键盘为人机界面，可以使焊接电压成为在一定恒压基础上，进行一定频率和幅值变化的脉冲电压。

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。

The code MFEL 1 is applied for short pulse case of, for example, rf linac FELs, FELO is for single mode simulation which can describe the motion in phase space of electrons with energy spread and give some interesting results in short computer running time.

计算表明，在短脉冲情况下，激光强度、品质、增益和能量抽取效率强烈依赖于电子束流强度，对一定范围的能散变化却不敏感；但在长脉冲情况下，上述物理量对能散在同样范围内的变化较为敏感。

The author mainly introduces the test devices for high-voltage pulse of ignitor, testing devices for pulse of ballests for lamps with overall activating devices and testing devices for the partial rectification of pulse of electronic ballast for fluorescent lamps, for reference.

作者重点介绍了触发器高压脉冲检测装置、带整体式启动装置的灯用的镇流器脉冲试验装置及荧光灯电子镇流器局部整流效应检测装置，供业内人士参考。

The various functions of the apertures are essential to the shielding box. Electromagnetic pulse couples into the shielding box through the "back-door coupling", which inevitably interferes with or damages the electronic components used in the shielding box.

而屏蔽机箱上各种功用的孔缝是必不可少的，电磁脉冲通过&后门&耦合进入屏蔽机箱，并对其内的电子元器件进行干扰或毁伤则是不可避免的，也是电磁脉冲进入屏蔽机箱的重要途径之一。

This paper refines the design of former simulator which is investigated and fabricated by our team, makes it as the solar simulator, and finishes the hardware and software design of a solar cell string tester, adopting the high speed DAQ system which is controlled by a industrial computer and making MOSFET as the electronic load, testing electric performance of strings rapidly.

本文中对课题组自行研制的恒定光强脉冲氙灯进行了改进，采用程控多个脉冲氙灯结构，配合反光装置，使得光辐照均匀度得到了较好的改善，并将其作为测试系统的太阳模拟器；采用高速数据采集系统和MOSFET构成的有源电子负载，研制了一种太阳电池串测试系统，对太阳电池串的电性能进行快速测试。

While the transmission of laserpulse in plasma forms pulse compression, soliton and paired solions, and densitycavitation of electron and ion and so on.

而激光脉冲在等离子体中的传播过程中同样出现了脉冲压缩、产生孤子以及孤子对、形成电子和离子的密度空泡等现象。

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。