正弦波

Transient and surge are the instant aberrance of the voltage and electric current on the simple alternating current wave circuit.

瞬变和浪涌是正弦交流波电路上电压与电流的一种瞬时态的畸变。

For ensure safety normal use upmentioned equipment, then had to eliminate existent all sorts ofs disturbance in electrified wire netting, such as press, wave gush, depression, sinkness, aiguille disturb and so on … Base on above concept, our company de engineer Men cumulate ten number year current supply device de designer manufacture experience, very adopt sines energys dispensers circuit and our companys specific high-tech, launch this new generation de purify AC power certain press utensil.

为了保证安全正常的使用上述设备，就必须消除电网中所存在的各种干扰，诸如过压，波涌，低压，下陷，尖峰干扰等等…基於以上理念，本公司的工程师们累积了十数年电源设备的设计制造经验，特采用正弦能量分配器电路及本公司特有的高新技术，推出此新一代的净化交流电源稳压器。

The analogue method and FFT method, as the basic measurement techniques for distortion are discussed, the technique and the difficulties of distortion measurement is analyzed in detail.

叙述了正弦信号源失真的分类：谐波失真、噪声失真和杂波失真；讨论了失真测量的基本技术的优点和局限性，分析了失真测量技术的难点和技术状况；介绍了谐波失真和总失真度的定义。

Some problems such as start-up of the motor, vector control, SPWM output, fault protection closedown, system communication, were discussed in this paper.

论文具体讨论了电机启动、矢量控制、正弦脉宽调制波的输出、故障保护停机及系统通信的软件实现方法。

It is designed as a periodic cylindrically symmetric sinusoidal corrugation waveguide and operates in 10GHz.

在设计方案中，它是旁壁对称正弦波纹的圆波导，变换器的中心频率为10GHz。

Meth od: The impl ants were studied by supper SAP93 program under the force of 0.8 s period b y the way of half sine wane.In group A the implants were without countersink, wh ile in group B those were with countersink.

采用三维有限元动态分析法，以Supper SAP93程序在周期为0.8 s的正弦半波力作用下对两种种植体进行应力分析，A组无防沉装置，B组有防沉装置。

It is shown that many of the existing integral transforms (including their logically equivalents) such as chirplet transform, dispersion transform, wavelet transform, chirp-Fourier transform, short-time Fourier transform, Gabor transform, Fourier transform, cosine transform, sine transform, Hartley transform, Laplace transform, z transform, Mellin transform, Hilbert transform, autocorrelation function, cross-correlation function, and the energy and mean of a signal, can each be considered as a special case of the FMmlet transform with specific parameters. In fact, an inventory of subspaces of FMmlet transform runs into countless numbers. The subspaces mentioned above are merely a few among a zoo of subspaces. They are essentially obtained by cutting the transform space of FMmlet transform at different positions, and can be likened to the computed tomography in medical diagnosis. Through these subspaces we actually see different slices or profiles of the FMmlet transform.

将现有诸多变换置于统一的 FMmlet 变换中加以审视，发现 chirplet 变换、频散变换、小波变换、 chirp-Fourier 变换、短时 Fourier 变换、 Gabor 变换、 Fourier 变换、余弦变换、正弦变换、 Hartley 变换、 Laplace 变换、变换、 Mellin 变换、 Hilbert 变换、自相关函数、互相关函数、能量和均值等，均为 FMmlet 变换在其参数取特定值时的特例；上述诸变换之间的差别，主要在于变换空间的维数有别，以及在不同空间维上取值的不同；这些变换有如医学诊断中的 CT，均由压缩 FMmlet 变换域空间所致，可以说我们通过这些变换看到的，是 FMmlet 变换的不同剖面。

At first, we constructed a family of smooth orthonormal bases of k-adic wavelets.

首先我们利用局部正弦与余弦基构造了L〓的k进小波正交基。

TE mode diffraction characteristics of surface-relief grating having different symmetrical profiles (rectangular, sinusoidal, triangle, trapezoidal profile) are calculated with rigorous second order vector couple-wave theory, the law of diffraction efficiency as a function of grating groove depth are analyzed: in a specific condition, diffraction efficiency might be close to 100%.

本论文采用严格的二阶矢量耦合波理论计算了矩形、正弦、三角形、梯形等对称面形蚀刻光栅的TE模偏振的衍射特性，分析了光栅的衍射效率随着沟槽深度变化规律。

This thesis simulates the transmittance of the ultrasonic and seismoscope in the two structure models with the transient dynamic analysis module of Ansys finite element method procedure under the sine load function of displacement.

应用Ansys有限元程序的瞬态动力分析模块模拟了数值模型在正弦载荷作用下介质内波的传播。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。