It also can be seen from these analyses that the damage pattern is almost completely identical for all 3 structure models regardless they are under excitation of the segregated major pulse only or its'full time history mother ground motion.
通过4个钢筋混凝土框架结构的伪静力试验所得滞回曲线和不同形式脉冲型地震动作用下得到的结构荷载-变形关系曲线的比较，以及结构频率变化分析，指出结构的累积耗能能力是保证结构安全的重要因素，发现一次性短时大脉冲输入与整幅地震动时程引起的损伤破坏几乎完全相同，初步验证了脉冲型地震动对结构的破坏效应，指出主脉冲对某些类型结构的反应起着绝对控制作用，并发现结构在脉冲型地震动作用下表现出更高的强度，为下一步结构静力试验和钢筋混凝土结构非线性分析提供了试验参考。
For the probability of two photon excitation is in direct proportion to the squared intensity of laser, both the femtosecond laser with extremely high pulse intensity and the microscope with high numerical aperture become critical components in the system, and therefore much detail information is provided on this part...
由于材料发生双光子激发的几率与激发光强的平方成正比，所以具有极高瞬时光强的飞秒激光器和可以对光束进行强聚焦的显微镜装置成为系统的关键部件，对此进行了详细的说明。最后，给出了部分利用上述加工系统所获得的初步实验结果。
Coupled a ultrashort laser pulses into the fiber probe to serve as near-field optical excitation and acquired their response optical pulse, images of each moment that happened in a few picoseconds or nanoseconds could be obtained only once. The time broaden properties for a 50 ps pulse through a fiber probe were measured by streak camera.
在高时间分辨NSOM研究方面，本文先后建立了以皮秒红外条纹相机和光电倍增管为测量手段的皮秒、纳秒时间分辨NSOM装置，通过采集样品响应光脉冲的时间特性，单次扫描就可完成皮秒、纳秒变化过程中的近场光学图像。
Main circuit consists of transmitter, receiver circuit, display circuit counted three parts, high pressure generated by the transmitter probe wave excitation to generate ultrasonic pulse emission, pulse after reflection by the media receiver interface circuit for receiving, processing through the MCU after counting, The thickness of liquid crystal display value, it is mainly based acoustic propagation velocity in the sample in the sample multiplied by half the time and get the thickness of the specimen.
主机电路包括发射电路、接收电路、计数显示电路三部分，由发射电路产生的高压冲击波激励探头，产生超声发射脉冲波，脉冲波经介质介面反射后被接收电路接收，通过单片机计数处理后，经液晶显示器显示厚度数值，它主要根据声波在试样中的传播速度乘以通过试样的时间的一半而得到试样的厚度。
Firstly, this paper introduces the developing tendency of excitation controller, including the development of hardware and control method, microcomputer-based excitation controller hardware structure and requirement of excitation control method to hardware Secondly, this paper also introduces the development, feature and application range of DSP and illustrates DSP performance advantage compared with the other singlechips or general-purpose processors Finally, this paper deals with the design of the DSP-based excitation controller hardware and the flowchart and realization method of its software from the aspects of I/O channel, formation and phase-shifting of the trigger pulse, signal synchronizing and human-machine interface The DSP-based excitation controller adopts many advanced technologies, such as alternating current sampling, digital pulse and graphic LCD displaying etc Because of the adoption of these advanced technologies, the excitation controllers structure is simpler, its performance is reliable and its operation convenient.
本中首先介绍了励磁控制器的发展趋势，包括励磁控制器的硬件结构及控制方式的发展，目前微机励磁控制器的基本结构以及励磁控制方式对励磁控制器的要求。其次，文中还介绍了DSP的发展历程、特点及应用范围，说明了DSP与其它单片机或通用微处理器相比在性能上的优势。最后，文中分别从I/O通道、触发脉冲的形成和移相、信号同步、人机接口等几个方面详细地论述了基于DSP的励磁控制器的硬件设计以及主要实时软件的流程图、实现方法。文中提出的这种基于DSP的励磁控制器采用了许多先进技术，如交流采样、数字脉冲、图形LCD显示等。这些先进技术的采用使得本文中的励磁控制器结构简单、性能可靠、操作方便。
Theory analysis and the measured data are shown that excitation pulse in pile integrity testing is silimar to half-period of the sine curve, and different exciting methods produce signals with different period of time, so its frequency composition is also different.
理论计算及实测资料表明，反射波法基桩动测激振信号近似为半周期正弦波，不同激振方式产生的桩顶速度脉冲信号宽度不同，相应频率成分也就不同。
In view of the operating method and load performance of remote control, the two exciting methods, pulse-excitation and press-excitation, were utilized to impulse a piezoelectric cantilever generator to generate electrical energy.
针对遥控器的操作方法和负载特性，采用脉冲激励和按压激励压电振子的实施方案，研究了压电振子在两种激励方式下对恒流负载的供电特性。
X-ray, which is excited from the X ray tube, has one wavelength scope, that is energy scope. According to the elements to be analyzed, X ray is choused by filter, and reach the sample. Atoms in the sample will absorb the X ray energy and the decay to emit the special x ray. The X ray will be collected by the collimator into the detector active area, and transferred into electron signal, the signal also will be processed in to energy spectrum and related concentration data by pulse processor with software.
从X光管通过激发Excitation发射出来一定波长范围也就是说一定能量范围的X射线，结合所需要分析的目标元素，使用滤光轮选择对应的能量范围的X射线，照射到样品上，样品中含有的元素原子电子受到激发会发射出其特征的X射线，同样通过Collimator准直器收集一定孔径的X射线进入到检测器Detector，检测器将感应到的X射线转换为电信号，电信号经过脉冲处理器Pulse Processor结合软件进一步将电信号转换成为能谱图以及相关浓度信息。
For searching the principle of a new ultrasonic generating mechanism, the arc in the consumable and non-consumable electrode circuit was submitted to the excitation with high-frequent continuous alternative and chopping pulse current separately.
文 摘 为探讨并建立一种频率、功率等参数可以实时调节的新型超声发生机构，选择熔化极与非熔化极电弧回路，分别施加高频连续交变信号和脉冲敲击式信号，以不同的能量传输方式成功地实现了电弧超声激发。
OBJECTIVE: To extract the heart excitation source signals in human pulse wave.
目的：提取心脏激励源信号的特征波形。
The selective excitation based on adaptive pulse shaping is one of the hot and developing fields in the world recently.
基于自适应脉冲整形技术的选择激发是国际上近年来兴起的前沿研究领域之一。
The conclusion of this experiment verified the fact that discharge pulse width could affect second collision and excitation progress in discharge plasma.
实验结论证实放电脉冲宽度对放电等离子体内次级碰撞激发过程有影响。
The main innovations are:(1) Puts forward a new length-adaptive fractional harmonic pre-emphasize algorithm to improve the precision of pitch search; (2) Puts forward a new fractional harmonic-enhance algorithm for algebraic codebook and combines two different pulse-dispersion technologies both in encoder and in decoder to improve the random codebook excitation; (3) Puts forward new unsymmetrical algebraic codebook structure to utilize the unsymmetrical distribution of residual signal, therefore constructs random codebook efficiently at low bit-rate; (4) Puts forward the method of directing the gain quantization by predictor selection bit of LSP quantization to improve the quantization efficiency of speech transition; (5) Integrated the above improvements, two new low bit-rate high quality CELP speech coding algorithm are put forward: 4kb/s Multiple Pulse Dispersion-Algebraic Code Excited Linear Prediction and 3.3kb/s Multiple Pulse Dispersion-Un-Symmetrical Algebraic Code Excited Linear Prediction (MPD-USACELP). The speech quality and algorithm delay of the two new algorithms have reached the current international level.
主要成果有：（1）提出了一种新的长度自适应分数谐波预加重方法提高了基音周期搜索准确度；（2）提出了一种新的代数码本分数谐波增强算法，并结合使用编码器和解码器中两种不同的脉冲散布技术，有效改进了随机码本激励；（3）提出了新的非均匀代数码本结构，充分利用了余量信号幅度分布的非均匀性，在低速率下利用很少的比特很好的构造了随机码本；（4）提出了利用LSP量化预测器选择信息指导增益量化的方法，显著提高了语音过渡段的量化效率；（5）结合这些改进措施，设计并实现了两种新的低速率高质量CELP算法：4kb／s多重脉冲散布代数码本激励线性预测算法和3.3kb／s多重脉冲散布非均匀代数码本激励线性预测（MPD-USACELP）算法，两种新算法的质量都达到了国际同类算法的水平，并保持了较低的算法延时和算法复杂度。
For the existing excitation system without AVC, through the hardware and software of distributed control system, the voltage command from power grid control energy management system is accepted to achieve voltage regulation related logic. The output pulse excitation command can increase or decrease current to change reactive power, thus to achieve voltage of generator adjusted automatically.
针对现有的无 AVC 功能的励磁系统，通过分散控制系统中的软硬件，接受电网调度能量管理系统来的电压指令实现相关的调节逻辑，输出脉冲指令来增减励磁电流，改变发电机无功，从而实现电网自动电压控制。
Butanedione monoxime, a cardiac excitation-contraction coupling desensitizer, increased ANP secretion and inhibited atrial stroke volume as well as pulse pressure.
心肌兴奋－收缩耦联脱敏剂2，3-丁二酮单肟促使ANP的分泌，对心房搏出量和心房搏动压呈抑制效应。
GSM uses 13kbit/s regu lar pulse excitation-long term prediction-linear predictive coder.
GSM采用了低码率、低运算量的规则脉冲激励-长时线性预测编码。
In the phosphorescence lifetime measurements with pulse method, both the excitation light pulse parameters and initial time selected for intensity decay analysis are crucial to the accurate lifetime calculation.
脉冲法磷光寿命测量中，激发光脉冲参量（脉冲宽度和形状）、用于磷光强度衰减分析的起始时刻的选取是影响寿命计算准确度的关键因素。
The relation between phosphorescence intensity decay and the parameters of the excitation light pulse is analyzed based on the linear time invariance. it is found that the phosphorescence intensity decay is independent on the parameters of the excitation light pulse after the excitation light vanishing.
以线性时不变系统理论为依据，探讨了磷光强度衰减特性与激发光脉冲参量之间的关系，发现对于有限宽度的激发光，激发光脉冲消失之后的磷光强度衰减特性独立于激发光脉冲参量；
We have studied transient absorption of the conducting polymer MP-PPV in solution and film after picosecond UV pulse excitation.
我们研究了在ps紫外脉冲激发下，导电高聚物MP-PPV溶液及薄膜的瞬态吸收谱。
Starting with the weak relativistic equation of beat-wave excitation of electron plasma waves, we have derived the condition for eliminating the pump depletion in the frame moving with the light pulse for arbitrary pulse shapes.
本文从电子等离子体波拍频激发的弱相对论性方程出发，在光脉冲坐标中导出了对任意形状的泵浦脉冲消除倒空的条件。