查询词典 wave function

Having considered the effect of wave number setting on the numerical calculation result, the cubic spline interpolation method has been used to infill data in the wave number domain. An inverse Fourier transform realized by Gaussian integral method converts the K domain solutions to electromagnetic fields in real space.

针对波数域中波数取值对模拟结果的影响，采用三次样条插值加密波数域数据，用高斯积分实现Fourier逆变换将波数域解变换为空间域电磁场。

According to the space domain iteration method of the Fredholm integral equation of the first kind, the wave number domain iteration formula is deduced for calculating the wave spectrum of the potential field on a lower horizontal plane.

根据第一类Fredholm积分方程的空间域迭代解法，推导出计算向下延拓水平面上位场波谱的波数域迭代公式。

This paper analyses fundamental of general thyristor single phase bridge half controlled rectifier and draws work wave of each part. to avoid out of control, the freewheel diode is added, the work wave is analyzed.

本文从常规的晶闸管单相桥式半控整流电路着手，分析其电路工作原理和各部分工作波形，为避免失控，在电路中添加续流二极管，并分析了相应的各部分波形。

Software analysis includes wave form of time domain, stick diagram of characteristics parameter, guiding diagram of frequency region and minor wave analysis.

软件分析包括时域波形、特征参数棒图、频域谱图、小波分析。诊断系统也包括计算机辅助系统。

The envelope detection has twoquestions: One, the demodulation main process is carries on thehalf-wave or the full-wave rectification to the amplititude-modulatedsignal, is unable from the detector output distinction modulationsignal phase.

包络检波有两个问题：一是解调的主要过程是对调幅信号进行半波或全波整流，无法从检波器的输出鉴别调制信号的相位。

Using the time-gain compensation technique to compensate for ultrasonic wave's weaking when transmitting in the air,and reduce the fluctuation of echo signal.The peak time detecting circuit which is composed of full-wave rectification circuit and differential circuit can detect the reach time of echo signal accurately.

和其他方法相比，如激光测距、微波测距等，由于声波在空气中传播速度远远小于光线和无线电波的传播速度，对于时间测量精度的要求远小于激光测距、微波测距等系统，因而超声波测距系统电路易实现、结构简单和造价低，且超声波在传播过程中不受烟雾、空气能见度等因素的影响，在各种场合均得到广泛应用。

EMG signal analysis software from DASYLab 6.0 rectus femoralis, biceps femoris, tibialis anterior , the gastrocnemius and other muscles of the original EMG signal, the 10-500Hz to the band-pass filter processing, the full-wave rectifier on the turn, rate of 10 Hz low-pass smoothing wave treatment, and then by the integral operation, the available IEMG values, and divided by the integral interval of time, come to the average EMG EMG signal amplitude, and action cycle the largest standardized EMG values.

肌电讯号由DASYLab 6.0软体分析股直肌、股二头肌、胫骨前肌、腓肠肌等肌群之原始肌电讯号后，进行10-500Hz的band-pass滤波处理，经全波整流上翻、10 Hz低通率波平滑化处理，再经积分运算后，可得积分肌电值，并除以积分区间之作用时间，得出肌电讯号的平均肌电振幅，并以动作周期中最大肌电值进行标准化处理。

The full-wave and half-wave Fourier transform algorithms are studied in their similarities and differences, and then applied to the same data for emulation test.

理论分析了全波差分傅氏算法和半波差分傅氏算法的异同。并采用这2种算法对同一组数据进行仿真验证。

The innovative points include of this dissertation is introducing the x-p transformation into transient Rayleigh wave method to improve the extracting effect of fundamental surface wave; utilizing several methods to suppress alias and leverage point effects to raise the signal-to-noise.

本文的主要创新点：在瞬态瑞雷面波资料处理过程中入τ-p正、反变换，提高了面波基波的提取效果；综合使用多种压制假频和端点效应的方法，提高了地震资料的信噪比。

The results show that whether the stiffness profiles are smoothly varying or layered, the fundamental mode dominates the surface wave field and the effective phase velocity approaches to the phase velocity of the mode in far field for the regular profiles. For the irregular profiles, the higher modes have a significant influence on the surface wave field. The intensity and the frequency range of the influence are related to variation of the profile stiffness.

结果显示，无论剖面刚度是缓变还是分层变化，对规则剖面，表面波场基阶模态占主导地位，远场表面波有效相速度与基阶模态相速度接近；对不规则剖面，表面波场中高阶模态影响较大，影响程度及频率范围与剖面刚度变化有关。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。