有关运动的

Results show that the equivalent mass in normal direction depends on the modes of collision. In the case of reversed sliding and sticking, the coefficient of restitution varies as a result of the instantaneously changes of the equivalent mass during impacting process. The coefficient of restitution depends not only on the contact force, but also on the kinematical and dynamic parameters of the two rigid bodies. Moreover, a formula is proposed to calculate the coefficient of restitution.

指出法向等效质量依赖于碰撞状态，在反向滑动和停止滑动这两状态下的法向等效质量是变化的，因此导致其恢复系数是变化的，这样，恢复系数不仅与接触力有关，而且还与两刚体的运动和动力参数有关，同时给出各种碰撞状态下的恢复系数计算式。

There is a small action range in archery.Simple methods and analysis is inadequate,so the author,on the basis of testing the archery athletes in national team with the Qualisisy infrared photoelectric testing system,Footscan sole pressure testing system,Noraxon myoelectricity remote testing system, etc,analyzes comprehensively the action technique of the athletes in national team from the posture,body motion characteristics,body posture equilibrium and stability,distribution of centre sole pressure, myoelectricity characteristics,etc,with the methods of relative software and data statistics.The conclusions and the suggestions are as follows:Conclusion:Firstly,the communality of posture angle,muscle strength,the activation order of main muscle during raising the bow, raising the bow and the timing of the raising could be used as the evaluation index of technique action in archery;Secondly,the length of the time needed in the different periods couldn\'t be used as technique evaluation index since it has no relation with the result.But the time of raising and pulling back the row is relatively fixed,and the time has a positive relation with the archery achievement of the national team in China.Thirdly,the central index of the sole pressure could be used as the reference criterion of selecting athletes and forecasting achievement.During playing archery,the interrelation between the central index of the sole pressure and the achievement is different individually and in different periods.Fourthly,there is low stability of the archery athletes in the front and back direction during the action, caused by the athletes\' posture disequilibrium of dorsal abdominal muscle and non-professional sport shoes..Fifthly,kinematics and electromyography shows that the people on archery in China haven\'t taken the raising and pulling back the row seriously.

射箭的肢体动作幅度小，简单的手段和分析不能满足其需要，笔者结合各种运动生物力学仪器优点及射箭项目的特性，选用Qualisisy红外光点测试系统、Footscan足底压力测试系统、Noraxon肌电遥测系统等对国家队射箭队运动员进行多方位的测试，运用相关软件及数理统计方法，对运动员的射箭动作技术，从射箭动作的姿态构架、肢体运动特点，身体姿态平衡稳定性、足底压力中心分布、肌电特性等进行全面分析，结论及建议如下：结论：第一，姿态角、肌肉用力激活程度、举弓阶段主要用力肌肉激活顺序、举弓、开弓时间等的一致性可作为射箭技术动作评价指标；第二，各动作阶段所用时间的长短不能作为技术评价指标，但举、开弓的时间相对较固定，开举弓时间比与中国国家队射箭成绩正弱相关达到显著性；第三，闭眼状态下足底压力中心单位面积轨迹长与144支箭最好成绩正相关达到显著性，可作为身体素质、选材及成绩预测的参考依据；实射时身体平衡的足底压力中心指标与成绩的相关程度具有个体性差异、阶段性差异；第四，射箭运动员实射时身体在前后方向上的稳定性较差，这与运动员的站立姿态、腹背肌力量的不匹配以及射箭没有专业运动鞋有关；第五，运动学及肌电学都表明中国射箭训练对举弓、开弓阶段的重视不够，背部肌肉用力特征不明显，撒放技术合理性不高。

In order to further explore the benefits of reasonable exercise on maintaining bone health and examine the effect of exercise on skeleton of young college students, 20 male students of college were divided into exercise group (participates bodybuilding frequently) and control group, some indexes of bone metabolism and bone mineral density were observed and analyzed.

为了进一步论证科学合理的运动有利于维持骨骼的健康和对骨质疏松症的预防作用，揭示体育运动对处于青春后期大学生骨骼的影响，本课题在对部分有关骨代谢的研究成果进行理论研究的基础上，以我校20名男性大学生为实验对象，分为运动组和对照组，观察并分析体育运动对大学生骨密度和骨代谢的影响。

The results show that electric development depends highly on ice phase microphysical processes, and inductive and noninductive charging mechanisms play a role in evolution of electric structure inside thunderstorms.

结果表明：感应和非感应起电机制是雷暴云中电结构形成的主要因素，雷暴云中起电活动的强弱很大程度上依赖于冰相物的出现时间，对流运动与起电过程的关系主要体现在对流运动影响着云中的凝结和冻结过程，从而与冰相物出现的时间有关。

The paper are studied dynamics characteristic of IR smoke under entironment to vacuum and micro-gravitation,based maths-model of thermodynamic onflow pervasion by smoke formed, the experiment proves that the movement speed of smoke gradually minishes along with hoist of vacuum.The process after smoke formed analysed ,which proves that its movement rule relates hilum of particle.

本文对真空和微重力环境下的红外烟幕进行了动力学特性研究，建立了烟幕形成过程中的热力湍流扩散数学模型，通过实验表明随著真空度的升高，烟幕的运动速度逐渐减小；并对烟幕形成后的过程进行了分析，结果表明其运动规律跟粒子的粒径有关。

The first two chapters showcase the Anti-Rightist Campaign (1957) and "the Great Leap Forward"(1958). Based on the works of Poetry and the poems relevant to the two said political campaigns, these two chapters analyze the ways in which the poems assembled, cohered and acquired referentiality intra-textually and in a wider cultural context. Changes in that formative process provide an effective frame of reference for us to reflect on the losses and gains of the Poetry and socialist literature in a particular time.

前两章分别选择1957年下半年的"反右派"和1958年的大跃进这两个典型的运动，根据《诗刊》与这两个运动有关的作品来分析文本与文本群、文本类型在自身内部以及在更大的文化语境中聚集、凝结和获取现实指涉力的方式，其中的变化过程为我们思考和总结一个刊物和一个阶段的社会主义文艺的特点和得失提供一个有效的观察点。

It has been proved by previous studies that peripheral nerve injury can induce a series of changes of expression of some neural active material and their receptors either in the somata or in the terminals of the damaged primary afferent neurons and motoneurons. These changes may reflect a re-ordering of metabolic priorities so that the synthesis of trophic factors or growth-associated proteins augmented while that of neurotransmitter-related proteins decreased.

以往的研究表明，周围神经损伤能够引起受损神经元(包括初级传入神经元和运动神经元)的胞体或终末内某些神经活性物质及其受体的表达发生一系列变化，其中与神经生长和营养有关的物质常发生上调，而与神经传递有关的物质则发生下调；与此同时，受损神经元的周围常伴随发生胶质反应及神经胶质增生等变化。

But programs set, time of course, amount of curriculum, teaching condition, and teaching form are still insufficient.4The reasons why other universities and colleges do not set elective physical education course are mainly due to leaders" consciousness, quantity and quality of physical education teachers, the field and equipment.5The reform and development of elective physical education course in universities and colleges should incarnate the guideline "health first. people oriented". Teaching content should be pertinent, scientific, arranged, and systematic, so as to build up a teaching content system combined theory, skills and abilities. Set programs on base of students" choice, at the same time, give attention to the requirement of social development and students" interest, and make differential treatment according to gender. The classroom teaching should be sportful, joyful, and successful. The organizing of course could be mutual choice, compensating service, both in and out classroom. The score could be graded synthetically assess knowledge, innovation, and effect.6Strengthening the management to elective physical education course, improving teachers" comprehensive quality, making full use of fields and stadiums are all supporting conditions for the development of elective physical education course.

但是开设的项目、开课的时间、教学时数、教学条件、教学组织形式还难以满足学生学习和掌握知识和技能的需要。4、未开设公共体育选修课的高校其主要原因与领导的认识程度、体育教师的数量和质量、体育场地器材等有关。5、高校公共体育选修课的改革发展应体现&健康第一、以人为本&的指导思想：教学内容突出针对性、科学性、层次性、系统性，构建理论、运动技能、能力培养相结合的内容结构体系；运动项目设置以大学生对体育的选择性为基本前提，同时兼顾社会发展的需要和学生兴趣的需要，注重性别差异与因材施教；教学方法力求教懂、教会，体现课堂教学的娱乐性、快乐感和成功的喜悦：教学组织实施双项选择、有偿服务、课内课外相结合等多种形式；学习成绩实施知识+创新+效果的综合考核评价方法。6、加强公共体育选修课动态管理，提高教师综合素质，挖掘现有体育场馆设施的潜力，充分提高利用率是公共体育选修课改革发展的基本保障条件。

James Legge's comparative studies on religions and his concept of comparative religions are related to the secularization movement of the Great Britain in the Victorian age, the progress from the traditional theology to religious history studies and comparative religions studies, and his over thirty-year stay in China and fifty-year research in Chinese classics.

理雅各的比较宗教研究以及在此过程中所形成的比较宗教观，既与维多利亚时代英国的宗教世俗化运动有关，也与传统神学向宗教历史研究和比较宗教研究过渡的进程有关，同时也与他在华30多年的生活经验和长达50年之久的中国经典研究密不可分。

His methods of holding the mallets and original concepts of mallet motion outlined in his book,"Method of Movement", have been adopted by players around the world.

全世界的马林巴打击乐手都采用了雷斯哈瓦德·斯蒂文森有关握槌的技术以及在他书中提到的&动作技术&——有关木槌运动新颖的概念。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。