弹性碰撞

The study is divided into three major parts:(1) To discussing the differences between the COR K coefficient of restitution as ball hits the bat in these two different softball.

研究可分为三部分：第一部份是了解两种垒球碰撞球棒之弹性恢复系数的差异。

We can calculate the differential cross section and found new physics and new matter state.

高能质子—原子核碰撞产生大质量轻子对的Drell-Yan过程类似于轻子—原子核深度非弹性散射过程，可以用于研究束缚核子的部分子分布。

We fit the anisotropic interaction potential based on the Murrell-Sorbie potential function for He-HCl system by applying the interaction energy data, which are calculated at the theoretical level of the single and double excitation coupled-cluster method with noniteractive perturbation treatment of triple excitation CCSD. The new potential model is compared with other potential models. The differential scattering cross sections for collisions between He atoms and HCl molecules are calculated by using CC (Close-Coupling) method. Furthermore, the changing regularity of the inelastic differential scattering cross sections is summed up.

根据在CCSD/aug-cc-pVQZ理论水平下计算的He-HCl相互作用能数据，作者采用Murrell-Sorbie势函数形式拟合了He原子与HCl分子相互作用的各向异性势，并与其它势模型进行了比较；然后采用公认的精确度较高的CC近似方法计算了He-HCl碰撞体系的微分散射截面，总结了非弹性微分散射截面的变化规律。

This paper designed a kind of biliary tract virtual surgery simulation system and discussed the actualization of related techniques such as system structure design, 3D reconstruction, collision detection, elastic deformations of soft tissues and force feedback.

设计了一种用于外科医生仿真训练的具有实时力反债的胆道虚拟手术仿真系统。主要讨论了本系统的结构设计、三维重建、碰撞检测、软组织的弹性变形和力反馈等方面的技术实现。

Combining Newton two state model with step function,a u nified dynamic model between separation and collision process for the linkage me chanism with clearance connections,and with variable rotating speed of the cran k was developed in the paper.

将阶跃函数与牛顿二状态相结合，考虑曲柄非匀速运转，对含间隙平面连杆机构的副间分离与碰撞过程建立了动力学统一模型，利用该模型，引入粘弹性阻尼被动控制技术，通过算例分析了被动控制的效果。

And M.Hirai are introduced. The parton distributions function of bound nucleon are obtained through the experimental data of deep inelastic scatting and Drell-Yan process.

Hirai等利用不依赖于物理模型的整体分析，通过拟合现有轻子—原子核深度非弹性散射以及高能质子—原子核碰撞核Drell-Yan过程实验数据，分别得到了束缚核子中的部分子分布函数。

A radial basis function with polynomials interpolation method and a Heaviside step function are chosen for establishing local Petrov-Galerkin formulations of hyperelasticity.

提出了求解超弹性材料静力学、动力学、静态接触和动态碰撞等问题的局部Petrov-Galerkin方程。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。