正交调制的目的是产生单边带RF激发脉冲，以避免激发镜像层面。
The purpose of quadrature modulation is to generate the SSB RF exciting pulse that avoids exciting it's mirror slice.
天文学团体随着脉冲星的发现重新激发了兴趣。
Interest was renewed in the astronomical community with the discovery of pulsars.
用飞秒脉冲激光，研究了二氢卟吩光敏剂CPD3分子在双光子激发(TPE)下的光物理过程。
Photophysical processes of the chlorophyll derivative photosensitizer CPD3 were investigated under two-photon excitation (TPE) induced by a femtosecond pulse laser.
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 selective excitation based on adaptive pulse shaping is one of the hot and developing fields in the world recently.
高电压无电极强脉冲气体放电，可以用作激光器的激发光源。
High voltage pulsed electrodeless discharge in rare gases can be used as a light source for laser excitation.
给出了衰减多脉冲光激发的双光子吸收几率的表达式。提出了一种简单易行的实验方案。
The expression of two-photon absorption probability for the decaying optical pulse series excitation is given and a simple experimental method is suggested.
本文提出的旋转回波脉冲序列具有激发带宽适中，实验参数调整简单的特点，可广泛应用于固体样品的核磁共振谱测量中。
A pulse sequence, namely rotary echo, with modest excitation bandwidth and mere adjustment of the experimental parameters is proposed in the present article.
实验中进行了激发震源实验，激发震源采用的是阶跃脉冲和窄方波脉冲，结果表明前者所获资料的分辨率较高；
Shooting experiments on step pulse and burst square pulse show that the data generated by the former has higher resolution.
该现象是由薄膜中金属超微粒子内费米能级附近电子被飞秒激光脉冲激发所产生的非平衡态电子经历瞬态弛豫造成的。
The optical relaxation is a process in which nonequilibrium electrons, excited by laser pulses and originating from near Fermi level in Cu ultrafine particles, return to the equilibrium state.
目的：探讨脉冲振荡法在支气管激发试验中的应用价值。
Objectives:To investigate the clinical value of impulse oscillometry(IOS) in bronchial challenge test.
比较了较高激发密度下的受激发射、自发发射和激光脉冲的时间特性，这些都证实了该发射是受激发射。
Time behaviors of the stimulated emission under relatively high pumping intensity, spontaneous emission, and laser pulses were compared, and hence the stimulated emission of ZnO thin films was proved.
方法：研制外部激发装置，设计成像脉冲序列，制作模拟人体软组织的体模。
Methods: An external force actuator was developed, the imaging pulse sequence of MRE was designed, and tissue simulating phantoms were constructed.
这种实验性电话铃是依靠玻璃纤维所传送的脉冲激发而工作的。
The experimental telephone's ring is activated by pulses sent through a glass fiber.
它是用单束激光脉冲在样品内激发出一个压力脉冲，该压力脉冲将导致两电极上感应电荷层密度变化。
It is used to excite pressure pulse in a sample by means of a single laser pulse which will lead to the change of charge density on the two electrodes.
针对声波测井薄层探测的需要，用半解析方法求解了地层为水平多层介质时柱状井孔内脉冲点源激发的声场。
The acoustic wave field excited by a pulsed point source in a fluid-felled borehole surrounded by horizontal multiple-layered media is solved by the send-analytical method.
研究了脉冲激发下单个半导体量子点中单光子发射的统计特性。
The statistic characteristics of single photon emission in single semiconductor quantum dot with pulse excitation have been investigated.
利用脉冲激光束轰击金属样品表面时在周围空气中激发的光声信号研究了纯铜的激光烧蚀。
Laser ablation of pure copper was investigated using photoacoustic signals excited in surrounding air when a pulsed-laser beam impinges a metallic surface.
分析表明，交叉弛豫随激发场强度增大，并导致偏振因子随激发场入射脉冲面积减小。
It was revealed that the cross relaxation increased with intensity of the excitation, which resulted in the decrease of polarization factor with the input pulse area.
首先介绍了SLR脉冲设计思想，然后基于密度矩阵理论，应用计算机模拟方法对所设计脉冲的激发带宽进行模拟。
In this article, we present a design method of the SLR pulse. Subsequently, based on density-matrix theory, computer simulations are used to show the excitation profiles of the designed SLR pulses.
作为实际应用，本文导出了分离同位素时分离系数的计算公式和用短脉冲的选择性激发同位素必须满足的条件以及激发速率的计算方法。
The article contains the derivations of the formula of separate coefficient, the conditions of the selective optical excitation and the excited rate for isotope separation as an actual application.
而在主破裂阶段，积累电荷的急速运动形成瞬间电流，激发了脉冲式的磁场异常。
While the magnetic pulses of shorter-period appeared at the last stage of the experiment, may be induced by instantaneous electric current of the accumulated charge during the cracking acceleration.
观察到了微秒量级的快速光开关现象，并分析了激发光脉冲作用结束时，各中间态上细菌视紫红质分子的分布。
Microsecond optical switch is observed and BR molecule distributing of different intermediate is analyzed when the exciting pulse is over.
脉冲铒YAG固体激光电源为氙灯提供能量，氙灯是激光的泵浦源，它燃烧发光激发工作物质铒YAG产生激光，因此激光电源的性能直接影响到激光光束的质量。
Power supply system provides flash energy to Xe lamp. Pumping of Er:YAG laser rod is provided by Xe lamp. Pulse solid laser power directly affects the attribute of laser.
利用有限元法(FEM)对板状金属材料中脉冲激光激发的超声导波进行了理论研究。
A theoretical study on ultrasonic guide waves generated by a pulsed laser was presented, using the finite element method (FEM).
然后，根据有限元数值分析方法的特点，建立脉冲激光激发皮肤产生超声波的有限元模型；
Then, a finite element model was accordingly developed to simulate ultrasound waves generated by a pulsed laser in the skin.
结论：脉冲振荡法在支气管激发试验诊断支气管哮喘中具有较高的临床应用价值。
Conclusions: the impulse oscillation bronchial provocation test in the diagnosis of asthma has a higher clinical value.
提出了新的单棱镜色散补偿方法解决声光偏转器对超短脉冲激发光的色散问题。
A new single prism dispersion compensation scheme is proposed to compensate for the dispersion effect of the AODs on the ultrashort-pulsed excitation laser.
首先讨论了热弹机制下脉冲激光超声的激发原理，并利用有限元法数值模拟激光热弹机制下激发板状材料中的超声导波。
The laser-generated ultrasound theory in thermo-elastic mechanism is discussed first. Then laser-generated ultrasonic in the plate material is simulated numerically by using the finite element method.
摘要本文主要介绍脉冲激光激发超声波、电磁传感器检出方案。
This paper mainly presents the method of Laser ultrasonic exciting and EMAT detecting.
摘要本文主要介绍脉冲激光激发超声波、电磁传感器检出方案。
This paper mainly presents the method of Laser ultrasonic exciting and EMAT detecting.
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