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These pulses include a Gaussian pulse, a hyperbolic secant pulse, a Lorentzian pulse, a Poisson spectrum pulse, a asymmetrical hyperbolic secant pulse, a rectangular pulse, a chirped Gaussian pulse and a chirped super-Gaussian pulse.

本论文基于上述提及的基本概念、分析方法和衍射积分理论，以描述超短脉冲光束的数学物理模型(包括超短脉冲高斯光束、超短脉冲贝塞耳—高斯光束、超短脉冲拉盖尔—高斯光束和超短啁啾脉冲光束等)为主要研究对象，研究超短脉冲光束在自由空间、色散介质和通过光阑的传输特性和位相奇点附近的光谱异常行为。

To observe the influence of valsartan to the pulse wave velocity in patients with essential hypertension.

目的 观察缬沙坦对高血压患者脉搏波速度(pulse wave velocity，PWV)的影响。

To improve the reliability of pressure measurement in detonation combustor of pulse detonation engine, the pressure/time curves of detonation were measured at single detonation and multicycle detonation, respectively, by using a dynamic pressure measurement system.

为了提高脉冲爆震发动机（Pulse Detonation Engine，简称PDE）内爆震波压力测量值的可靠性，解决多循环PDE爆震室压力测量问题。

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。

The concept that Pulse takes and means, some are just like in resembling game industry " open platform ", those who cross platform is idiosyncratic the market potential with game, more the space that this product added a lot of envisaging.

Pulse秉承的理念和方式，有些好比像游戏行业中的&开放平台&，跨平台的特质和游戏的市场潜力，更为这款产品增加了许多想像的空间。

The amount of pulse width modulation pulse generators of the proposed modulation strategy is only the half of that of the traditional modulation strategy, which is of significant theoretical and practical value for the digital implementation of cascade multilevel converter.

该策略较传统的载波相移SPWM可以节省一半的脉宽调制(pulse width modulation，PWM)脉冲发生器，对级联型多电平逆变器的数字化实现有重要的理论和实用价值。

An asynchronous coupling method is proposed to reduce the walkoff effect, and the results show that asynchronously coupling of the bright pulse with the dark soliton can efficiently improve the bright pulse compression relative to the synchronous coupling method.

还发现，若采取本文提出的非同步耦合法，则可以明显地弥补离散效应对脉冲压缩的影响，从而有效地改善脉冲压缩效果。标签脉冲离散交叉相位调制脉冲压缩非同步耦合 pulse walkoff cross phase modulation pulse compression asynchronous coupling

In cicada Cryptotympana atrata the click songs were produced by a single tymbal, its waveforms consisted of high and low amplitude pulse train.

中国科学院生物物理研究所，北京摘要：蚱蝉单发声膜发出的click声波形由高幅值和低幅脉冲列(pulse train，PT)组成。

Abstract］ Objective To explore the relationship between carotid pulse wave velocity and artery function changes in hypertension patients.

目的 应用组织多普勒显像技术探讨原发性高血压患者颈动脉脉搏波速度(carotid pulse wave velocity， CPWV)与颈动脉功能变化的关系。

This paper discusses the pulse-width modulation switch sequence of arbitrary-number-level inverters, and proposes a switch sequence with loss balance of power electronic devices.

讨论任意电平逆变器脉宽调制(pulse-width modulation，PWM)序列，提出一种电力电子器件损耗均匀分配的序列方式。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。