查询词典 Pulse

Experiments have been performed using ultra-short (30fs) ultra-intense laser pulse(up to 1018W/cm2) focused into under-dense plasmas(ne＜1020/cm3). A 2ω0 probe pulse was used for the shadowgraphy and the investigation on the propagation of laser under various condition was presented.

开展超短超强激光与次稠密等离子体相互作用实验，采用探针光对激光等离子体相互作用区域进行阴影成像，研究了不同激光功率与临界功率比值及不同激光脉冲长度与等离子体波波长比值下的激光在次稠密等离子体中的自聚焦传输。

The double～probe pulse echo method, combining the advantages of transmission technique and pulse reflection method, is used to optimize the ultrasonic echo signal amplitude in case of strong attenuation of energy when ultrasonic signal transmitting in solid rocket motor grain.

采用双探头脉冲反射法，综合了穿透法和脉冲反射法的优点，实现了超声信号在固体火箭发动机药柱中传播时能量强衰减的情况下超声回波信号幅值的最优化。

It is found that the carrier phase and the parameter of sine function affect the pulse energy and the center of time gravity seriously when the pulse width is shorter than one optical oscillation period.

结果表明载波相位和正弦函数的参数对超短正弦高斯脉冲的脉冲能量和时间重心有很大的影响。

A measuring approach of pressure oscillation has been developed and experiments are conducted in a 10 liter two-dimension air-lift loop reactor. The experimental results show that the local mass transfer parameters have close relationship with the operating conditions, the structure of ALR and the properties of the reaction systems. A series of measurements of pressure pulse indicate that a gas distribution zone exists near the gas sparger, and in this zone the responding signals of pressure pulse are different with the signals measured in other parts of the reactor.

对不同结构的环流反应器的局部流体动力学和传质动力学特性进行了研究，利用压力传感器测量了空气-水、空气-NaCl水溶液、空气-Na〓SO〓水溶液、空气-葡萄糖水溶液和空气-乙醇水溶液五种体系，在不同气速下，不同位置的压力脉动信号，通过随机信号的数学分析，得到压力脉动信号的频谱特性，并依据压力脉动信号的频谱特性的分析给出环流反应器气体分布区的范围。

This research uses high sensitive piezoelectric sensor for developing a sensitive sphygmograph to detect anthropic pulse and to determine parameters to diagnose physiology of human. From spectrum of pulse, the analysis processes are to determine the high pass frequency used in the analysis, uses the IIR Buttorworth filter to remove the noise, to calculate the Hermite curve for filtering the oscillation parts caused by breathe, then to calculate the parameters in strength, time and angle domains from the processed signal to study their correlation with the physiology of the studied experimenters and compared the results with the machine from the market.

中文摘要本研究采用高灵敏度压电感测元件，发展敏锐的脉搏感测仪器，量测人体手腕脉搏波形，计算其中所包含之参数来探讨与研究人体生理状况相关性的适用性；藉由分析脉搏频谱成份并使用Buttorworth滤波器过滤高频杂讯，再使用Hermite方程式去除手腕低频振动杂讯，由过滤后的脉搏讯号萃取振幅强度、波形上升与下降时间、上升与下降角度等参数，经由统计分析探讨与人体生理之情况相关性，并将所获得指标结果与市售仪器所量测之数据变化进行比较。

Methods 2.1 The experiment about changing electricic pressure values into the pulse-taking pressure values of making pressure standars of sphygmograph. Putting 1g、2g、5g、10g、20g、50g、100g、140g weights on the black1 probe and the black2 probe of NX-3 multifunctional sphygmograph ,putting 1g、2g、5g、10g、20g、50g weights on the purple probe of NX-3 multifunctional sphygmograph. Then we noted the the different pressure numerical value when putting none and different weights on the probes to prove the liner relationship between them. 2.2 Setting up wiry pulse model in achy rabbits We operated on the non-drugged state rabbits, exposure the carotid.

2.1 关于电学压力值与实际压力值换算的脉图仪压力定标实验：NX—3 多功能脉图仪黑色探头 1 和黑色探头 2 上放置 1g、2g、5g、10g、20g、50g、100g、140g砝码，NX—3 多功能脉图仪紫色探头放置 1g、2g、5g、10g、20g、50g 砝码分别记录两种脉图仪共三个探头其空载、探头上放置砝码时脉象采集仪上所显示的取脉压力值，验证砝码重与取脉压力值的线性关系。

Pulse power system has been widely used in high technology fields, whose developing direction is high storage density, light weight and small volume. Its kernel problem is to establish a pulse power storage system with high storage density. High storage density capacitor is one of the important research projects.

脉冲功率系统已应用于许多高科技领域，向高储能密度、轻量化、小型化等方向发展，其核心问题是建立高储能密度的脉冲功率储能系统，而高储能密度电容器是主要的研究对象之一。

This idea rooted in the supposal that combustion pressure is a pulse force and the characters that wavform parameters are sensitive to pulse .

这思路来源于将柴油机作功冲程的爆发力近似看成一个脉冲激励的假设，以及波形参数对脉冲激励敏感的特点。

Through conducts the summary research to the ore deposit, each economic indicator table Ming dynasty printed books ore deposit\'s development has the good economic efficiency and the social efficiency, the opportunities for investment is good, south An Bali in the ore power scope 305 to take sb\'s pulse groups and in 360 to take sb\'s pulse group 8-35 scopes may change over to sifts the work, for next step changes over to the substantive development to lay the foundation.

本文主要针对矿床勘查普查阶段的研究，对其氧化带的圈定无正确资料，需在下步施工斜井等专项工程中正确圈出氧化矿，以保证资源的可信度和财务预算的正确度，这是作者今后要努力的方向。

Combined with the decorrelation technique by pulse-to-pulse carrier frequency hopping, the proposed algorithm is used for preprocessing and can greatly lower the SNR threshold of superresolution implemented in frequency domain.

在该算法的基础上，结合脉间跳频回波去相关的设计，我们提出了在频域实现超分辨处理的有效方法，从而大大降低了超分辨处理的SNR门限。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。