力学的

In this paper,the author deduces the basic equation of statistical Mechanics- Liouville Theorem in two different ways from analytical mechanics′ concepts of phase space and the Hamilton Canonical Equation.

本文笔者用两种不同思路由分析力学的相空间概念和哈密顿正则方程推导了统计力学的基本方程———刘维定理。

Postulates of classical statistical mechanics, micro canonical, canonical, and grand canonical distributions; applications to lattice vibrations, ideal gas, photon gas.

经典统计力学的假定、微正则、正则和巨正则分布；统计力学在晶格振动中的应用、理想气体、光子气体。

A theoretical formula of vuggy rock compressibility is proposed based on the theory of material mechanics and elastic theory.

根据材料力学和弹性力学的有关理论，推导出了溶洞介质的压缩系数计算公式。

The design requirement and mechanism of Lunar Rover with Center of Mass Varied (CMR-1) are briefly introduced. Based on the characteristics of wheelsoil interaction mechanics, the wheel sinkage, stability margin, motion resistance and drawbar pull of lunar rover in forward mothion are analyzed using terramechanics theory.

简要介绍了变质心月球车(CMR1)的设计要求和机械结构，并基于地面力学的知识，从分析月球车轮地接触力学特性入手，对变质心月球车行走过程中车轮下陷量、运动阻力和牵引力等进行了分析。

The establishment of Matrix and Wave mechanics ,is the important incident on the development history of physics of 20th century.

矩阵力学和波动力学的创立，是20世纪物理学发展史上的重要事件。

The developments of the computational micromec hanics are characterized by the progress of the finite element computational micromechanics.

有限元计算细观力学的发展是近十年来细观计算力学发展的主要特征和推动力。

This resulted in the creation of "high-speed mechanics", or as it is called , relativistic mechanics.

这就导致了"高速力学"的产生，也就是人们所说的相对论力学。

A numerical human head model based on CT scan image of alive head of a Chinese has been developed using finite element method and computer-aided-engineering techniques.

该项目从计算生物力学着手，以有限元法和计算机辅助工程技术为手段，建立中国人的头部损伤生物力学的数字化头颅。

Deduct the formula of compressibility of vug with mechanics of materials and elasticity.

应用弹性力学和材料力学的理论，得到了溶洞压缩系数的计算公式

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

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。