The handle of boundary conditions and the formulation of acoustic particle velocity are given.

给出了边界条件的处理方法及声粒子速度的计算公式。

The algorithm discards the particle velocity and tracks the state of particle swarm by observing the overall changes in the fitness of all particles in the swarm.

该算法舍弃了粒子速度这个参数，并通过粒子群中所有粒子适应度的整体变化跟踪粒子群的状态。

High particle velocity will increase the maximal contacting stress and shift the position of maximal contacting stress.

同时也发现，较大的污染颗粒速度有增大接触应力和改变最大接触应力点的作用；

Through processing sound pressure combine with particle velocity, the information of underwater target radiation noise field is entirely used.

通过声压与振速的联合信号处理，充分利用水下目标辐射噪声场的信息。

The equations of particle velocity are deduced when the initial velocities are different for both the temporal model and the spatial model.

在考虑了时间模式的基础上进一步推导求解了空间模式下不同初始速度的固粒群的运动解析关系；

The surface particle velocity responses of a solid medium with a cavity under dynamic loads are numerically obtained by the finite element method.

通过有限元数值模拟，得到了含洞穴固体介质在动荷载下表面质点的速度响应。

This is showed on the image of the particles' trajectory: when the opening-angle increase, the particle velocity to the axis increase, on both sides of the axis.

这在颗粒的运动轨迹图象上表现为：当开口角度增大时，在中轴线两侧的颗粒向中轴线运动的速度相对增大。