head wave

Particle system and image synthesis are adopted to implement the ship's head wave and tail wave.

采用粒子系统和图像合成技术实现了舰艇首浪和尾浪的模拟；

First, we analyze the head wave PN, it shows that it's good in linearity relation, and the value of PN velocity counted out is same to the crust model using in the list of pass time of HuaNan seism.

首先对其首波PN进行分析，结果表明其线性关系较好，计算出的速度值与华南地区近震走时表中所用的地壳模型中的速度值一致。

A Statistical Analysis of Torque and Thrust Variation of the Propeller under Random Head Wave

在随机迎浪下螺旋桨的扭矩和推力变化的统计分析

Experimental results about influence of gas saturation upon compressional head wave velocity, amplitude and dominant frequency

含气饱和度对纵波首波速度、振幅及主频影响的实验结果

Third, the products are the trend at the head wave.

第三, 产品是否在趋势浪头上.