点粒子

基于迭代sigma点粒子滤波的再入目标跟踪

Iterative sigma point particle filter in target tracking on reentry

本文用微扰理论下环形Josephson结中圆对称孤子点粒子模型所得的结果，首先分析了环形结中各种耗散情形下的孤子回波效应，部分结果与数值模拟计算结果进行了比较；

The returning effect of soliton in an annular Josephson junction is analysed in detail theoretically . Some results are compared with directly numerical simulation ones .

太阳风是一股带点粒子流。

The solar wind is a stream of electrically-charged .

其原因在于中微子以及所有轻子、夸克并不是点粒子。

This is because the neutrino is not point particle but the4-dimensional space-time cylinder .

理论计算是在假定轻子是点粒子的条件下完成的。

The theoretical computations are performed under the assumption that the leptons are point particles .

它可以用来计算托卡马克中任意电磁扰动下带点粒子的导心轨道。

The code can be used to compute the guiding-center orbit of the charged particles with an arbitrary electromagnetic fields in tokamaks .

作为一个基本的理论模型，该理论方法还可以用来探究粒子从微腔中逃逸，或者光波或点粒子从势场中逃逸过程。

For example , as a basic theoretical model it can be used to the transport problem of particles through a microcavity and to the escape process of the optical wave or point particle from potential field .

事实上，如果从原点观察，由一个带点粒子产生的电场，其方程与上述方程是一样的，类似的例子还有磁场等等。

Actually , if you look at the electric field generated by a charged particle at the origin , it is given by exactly the same kind of formula , and there are magnetic fields and so on .

光滑粒子流体动力学（SPH）中，物质域由具有质量和体积的点（粒子）离散；跟踪每个粒子的运动，可得到物质构型的变化。

Smoothed Particle Hydrodynamics ( SPH ) discretizes the configuration by a set of particles with the properties of mass and volume . By tracing the motion of each particle , the variation history of the configuration could be derived .

PSO-CF算法初始时在积分区域内随机选取一定的分割点，粒子的速度采用收缩因子进行更新，粒子将朝着更好的位置移动。

PSO-CF algorithm selected some initial partition points randomly in the domain , and used the constriction factor to update the velocity , then the particles would move towards better position .

拟现实在转载点粉尘粒子扩散运动中的应用

Application of virtual reality to get the diffuse movement of power dust on transshipment point

而对于心脏来说，左心室容积是一个比较重要的参数，所以本文除了控制点的粒子系统外，还另外创建了一种容积粒子来测量心室的容积。

The left ventricular volume is an important parameter to heart , and then this paper create a new particle system to measure ventricular volume in this paper .

提出了一种求解离子晶体等价格点的单粒子离子Dirac方程方法，确定离子晶体的点电荷电量。

In this paper , the method of determining the net charge value of ions in ionic crystal is posed by solving the equivalent lattice Dirac equation .

注射器注塑与输液器拉管操作点的尘埃粒子数超标率较严重。

The air dust particles at sites for moulding syringes and producing tubes of infusion sets badly exceeded allowable limit .

提出了新的确定三维云场各格点真实有效粒子半径及对云场进行尺度平均的方法。

Present new methods for determining the true value of effective particle radius of 3D cloud field and for scale averaging of high resolution 3D cloud filed .

基于k-中心点法的改进粒子群算法在旅行商问题中的应用

Improved particle swarm optimization based on k-center and its application in traveling salesman problem

模型中二维离散空间中的点赋予引力，粒子在引力作用下以模拟智能生命的概率控制方式飞翔。

In the model , points in two-dimension discrete space are assigned gravity to . All of particles fly under gravity action according to probability controlling manner that simulates intelligence life .

同时讨论了解决非线性问题的推广的卡尔曼滤波、网格点逼近算法、粒子滤波算法逼近理想贝叶斯方法。

At the same time discussed applying the extended Kalman filter , approximate grid-based methods , particle filters which were used to solve non-linear problem to approach the ideal Bayesian 's theory .

原始物体：把原始物体移动到摄像头以外要小心，于正常的网格复制点不同的是，复制点粒子也会被渲染的！

Original Object : Take care to move the original object out of the camera view , because , differently than in regular Mesh Dupliverts , in Dupliverted particles it will also be rendered !

本文将以上方法用于流面的构造，并解决了流面构造过程中的曲面光滑拼接处理问题，在分离流时，用点定位方法在适当点上增加粒子，而当流面会聚时，减少粒子。

These methods have been used in stream surface construction .

而变异算子是实数编码遗传算法中的主要搜索算子，通过变异算子来更新粒子的个体极值点和全局极值点能大大提高粒子群优化算法的稳定性、收敛性及全局搜索能力。

The hybrid algorithm increased its convergence rate and stability using the mutation operator to update the best point of the individual and the best point of the global , because of the ability to mutation operator in local searching .

通过对心室控制点的选择，建立起控制点的粒子系统，并对这些粒子的行为采用弹性力学来约束。

Through the choice of the ventricular control points , establish a particle system of control points , and the behavior of these particles is limited by elasticity .