Objective To study the relation between P wave dispersion, P wave width and paroxysmal atrial fibrillation.
目的研究心电图P波离散度、P波宽度与阵发性心房纤颤的关系。
The text introduces the theory of the radar antenna 's scan wave by adopting the method of using wave width to describe antenna radiate direction FIG.
本文介绍了雷达天线的扫描波束理论，采用了用波束宽度描述天线辐射方向图的方法。
Receiving the third signal and based on a reference voltage, the switching circuit controls the pulse wave width of the switching signal so as to adjust output current of the power converter.
切换电路接收第三讯号并依据一参考电压，以控制切换讯号的脉波宽度，所以可调整功率转换器的输出电流。
The numerical results show that the presence of small dissipation causes a slow decrease of the amplitude and the propagation speed of the solitary waves and slow increase of the solitary wave width.
结果显示，小耗散的存在使孤波的振幅和移速随时间缓慢地减小，孤波宽度则随时间缓慢增大；
In other words, pulse width modulation is a modulation technique for generating variable width pulses to represent the amplitude of an input analog signal or wave.
或者换句话说，脉宽调制是一种调制技术，为发电可变脉冲宽度为代表的幅值输入模拟信号或波。
The graph below for example shows the average width of the waist and the Kondratieff wave for the US from 1791-1936.
下例图表展示的就是：从1791至1936年美国女性的平均腰宽与Kondratieff波动。
Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).
脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。
As one of inverters, Sinusoidal Pulse Width Modulation inverters can achieve low total harmonic distortion output wave.
正弦脉宽调制逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
As one of inverters, Sinusoidal Pulse Width Modulation (SPWM) inverters can achieve low total harmonic distortion (THD) output wave.
正弦脉宽调制(SPWM)逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
Introduction was made to the method of sine pulse width modulation (SPWM) wave generated by table searching, which is based on area equivalence principle.
介绍了一种基于面积等效原理，采用查表法产生正弦脉宽调制(SPWM)波的方法。
The optimized wave configuration results in ideal flow across the entire plate width, guaranteeing maximum heat transfer rates.
波在整个板宽的理想流的优化配置，保证最大的传热率。
Frequency, current, voltage and pulse width of successive wave and intermittent wave were similar. Frequency, current, voltage and pulse width of sound electric wave changed continuously.
连续波与断续波（续波）的频率、电流、电压、脉冲宽度均相同，声电波的频率、电流、电压、脉冲宽度均为不断变化的。
The formulas of mode conversion are derived and effects of optical beam power, initial beam width radius and inverse of the radius of curvature of the wave front on the mode conversion are analysed.
导出模式变换公式，分析了光束功率、光束初始的束宽半径和波前曲率半径的倒数对模式变换的影响。
The width of the reflection pulse is increased and its amplitude reduced as the rise time of incident wave delays, which may to some extent be good for the detection of insulation faults.
入射波上升时间增长，反射脉冲变宽，幅值降低，但一定程度上有利于检测出绝缘故障。
With smoothed particle hydrodynamics, we calculate the formation of micro-jet from the groove of metal surface, and reveal the dependence on the width of loading wave front.
利用光滑粒子流体动力学方法，计算了金属表面沟槽在冲击下的微射流现象，详细讨论了微射流对加载波前沿宽度的依赖性。
The displacement, inclination, shape and width of fault are closely relative to the decrement of electromagnetic wave energy.
断层落差、断面倾角、断层形态以及断层带宽度与电磁波能量的衰减有密切的关系。
Based on model tests, the effect of the berm width and elevation of composite slope on irregular wave run-up is analyzed.
通过物理模型试验研究陡墙式海堤复坡平台高程和宽度对波浪爬高的影响。
The amplitude of wave before repeat wave and dicrotic wave obviously increased compared with vire pulse(P<0.01), but its width of main wave didn't increase greatly(P<0.01).
与弦脉比较，紧脉重搏前波波幅及降中波波幅增高明显（P＜0.01）；而主波宽度不如弦脉增加明显（P＜0.01）。
The pulse width measuring of the different frequency square wave signals was done by using interrupt control technology.
应用中断控制技术测量不同频率方波信号的脉冲宽度。
The on-line detection of the laser shock processing effect is performed by detecting the amplitude and pulse width of the shock wave spreaded in the air.
本发明通过检测在空气中传播的冲击波的振幅和脉冲宽度，实现激光冲击强化效果的在线检测。
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
电力变换器主电路部（3），其根据该脉冲宽度调制波对开关元件进行驱动，将直流电压转换为三相交流电压；
Fiber configurations and effects of the soliton amplitude on polarization dispersion and soliton wave-width are discussed.
并以椭圆芯单模阶跃光纤为特例，讨论了光纤结构参数、孤立波振幅对偏振色散和孤立波宽度的影响。
The Sine wave Pulse Width Modulation (SPWM) is used to reduce the wastage and the noise of the motor more effectively, as comparing to the equal pulse width modulated PWM.
相对于等宽脉宽调制PWM，正弦波脉宽调制SPWM可以有效地降低电动机的损耗和噪声。
Good wave spectrum lines only could be acquired with all those techniques which ensure the value of full width at half maxium to be within the given range of the system.
只有尽一切技术手段使得半高宽在系统提示的范围之内，才有可能获得好的谱线。
Good wave spectrum lines only could be acquired with all those techniques which ensure the value of full width at half maxium to be within the given range of the system.
只有尽一切技术手段使得半高宽在系统提示的范围之内，才有可能获得好的谱线。
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