脉冲

The single a machine that should design to adopt serieses MCS-51s primarily conduct and actions main a measurement for, passing spreading feeling machine to the current of air measuring, its change is homologous pulse signal, this pulse signal through A/ D conversion with D/ A conversion after produce the certain electric voltage signal, will show the inceptive pulse signal a discharge for representing to come out at the same time.

该设计主要采用了MCS-51系列的单片机作为主要的芯片，通过传感器对燃气流量的测定，将其转变为相应的脉冲信号，这个脉冲信号经过A/D转换和D/A转化之后产生一定的电压信号，同时会将起初的脉冲信号所代表的流量显示出来。

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。

Taking the shaping pulse with a certain shape as the required output 3ω pulse, the corresponding shape of the 1ω pulse can be determined by the inverse calculation.

以预期输出三倍频光脉冲为具有特定形状的整形脉冲为例，通过逆算得到了相应的输入基频光脉冲波形。

We discussed the effect of the self-phase modulation, ionization, energy loss, and the density of the gas.Ⅱ.

研究在阿秒脉冲产生过程中，驱动激光脉冲载波相位和脉冲宽度的影响。

Development of OA kneepad : The kneepad density-wave output can be controlled by 2Hz different frequencies to 300 Hz stimulation pulse component, the pulse width of 100 to 150 μ s between the positive and negative output symmetry to the stimulation pulse. The rechargeable mobile phone batteries ( 3.7V) were served as power supply and SCM as timer with automatic shutdown after 30 minutes.

OA护膝的研制：护膝输出的疏密波可控制由2～300Hz不同频率刺激脉冲组成，脉冲宽度在100～150μs 之间，输出正负向对称的刺激脉冲，采用可充电的手机电池(3.7V)供电，单片机定时，30min 自动关机。

We present the linear extrapolation which predicts the required optimum normalized fiber lengths for the optimum pulse compression experiments. Two of the most important nonlinear processes occurring in optical fiber are sefl phase modulation and stimulated Raman scattering .

我们从理论上首次分析了波破裂现象对光纤-光栅对激光脉冲压缩的影响，对以往的经验公式予以修正，给出了最佳脉冲压缩实验所要求的光纤长度的经验公式，以方便激光脉冲压缩实验中对光纤长度的选择要求。

The production and transmission process of Mach cone observed in many experiments has been captured in this numerical simulation. The relation between thrust, impulse coupling coefficient and one pulse laser energy, pulse width were gained, which agreed well with the experimental results by Germany Space Center.

数值仿真中明显捕捉到有关实验中观察到的马赫杆的产生与移动过程；得出了推力和冲量耦合系数随脉冲能量、脉宽的变化关系，计算结果与德国空间中心实验吻合得较好，为脉冲激光器的选择和脉冲参数优化提供了参考依据。

After proper differential delay, an UWB monocycle pulse with 84-ps width and the fractional bandwidth of 153% is generated after photodetection.

两个高斯脉冲经过适当的延时，光电检测后产生超宽带单周期脉冲，其脉冲宽度为84ps，相对带宽为153%。

It consists of many ele- mentary pulse networks such as: Transistor forming and shaping circuit,trrnsistor blocking oscillator,multivibrator,time delay circuit and "and" gate,etc.

本文专门讨论了利用脉冲选择的晶体管化同步分频系统的线路综合原理和研制技术问题，对组成系统的各种单元脉冲电路，如晶体管窄脉冲形成器，晶体管间歇振荡器，晶体管多谐振荡器，晶体管延迟电路以及晶体管门电路等均作了较深入的分析，并给出相应的实验结果。

To solve the problem of analysis and computation during using a finite impulse response model with high orders, orthonormal basis functions are constructed by utilizing partial system information and then introduced into traditional FIR modeling. A generalized FIR modeling method is proposed.

为了解决高阶脉冲响应模型带来的分析和计算上的困难，利用系统的部分已知信息构造正交基函数，并将其引入到传统脉冲响应建模中，提出了一种广义脉冲响应模型辨识方法。

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。