试论社会公德教育的实践价值与具体路径——关于大学生社会公德教育的几点思考

文章分析了大学生社会公德教育的现状与不足,指出在社会生活快速发展、公共空间El益扩张并且传统道德偏重私德的现实历史语境中,大学生公德教育亟需改进教学理念与方法。文章提出,公德教育必须注意两个层次的问题：公德规范与德行动力,即“知”与“行”的问题。同时,引导学生接受公德规范与激发践行规范的精神动力,需要立足理性、情感与效益三条有效路径,并对这些路径的可行性进行了分析。     

Hip joint kinetics in the table tennis topspin forehand: relationship to racket velocity

The purpose of this study was to determine hip joint kinetics during a table tennis topspin forehand, and to investigate the relationship between the relevant kinematic and kinetic variables and the racket horizontal and vertical velocities at ball impact. Eighteen male advanced table tennis players hit cross-court topspin forehands against backspin balls. The hip joint torque and force components around the pelvis coordinate system were determined using inverse dynamics. Furthermore, the work done on the pelvis by these components was also determined. The peak pelvis axial rotation velocity and the work done by the playing side hip pelvis axial rotation torque were positively related to the racket horizontal velocity at impact. The sum of the work done on the pelvis by the backward tilt torques and the upward joint forces was positively related to the racket vertical velocity at impact. The results suggest that the playing side hip pelvis axial rotation torque exertion is important for acquiring a high racket horizontal velocity at impact. The pelvis backward tilt torques and upward joint forces at both hip joints collectively contribute to the generation of the racket vertical velocity, and the mechanism for acquiring the vertical velocity may vary among players.     

Organismic integration as a dynamic process: a systematic review of empirical studies on change in behavioral regulations in exercise in adults

In facilitating the adoption of exercise behavior, attention should be directed towards the dynamic nature of behavioral regulations. Organismic integration theory presents a suitable framework for investigating fluctuations in behavioral regulations. However, current results pertaining to this issue revealed mixed findings. The aim of this review is to examine the empirical literature on the dynamic nature of organismic integration theory in exercise settings over time in adults. A systematic review of English articles using PsycINFO, PsycARTICLES, ScienceDirect, and SPORTDiscus was conducted including keywords of organismic integration theory, longitudinal designs, change in behavioral regulations, and exercise. Findings are summarized through quantitative analysis of the evidence. Regarding autonomous regulations, steady increases in regulations are observable that originate within the first weeks and persist for up to one year. Most studies reported no changes in controlled regulations, although in a few cases changes were observed six weeks after baseline or later. The review adds to the theoretical understanding of how behavioral regulations are internalized. However, whether changes in regulation occur depends on both the type of regulation and on contextual characteristics. Future research of longitudinal design is warranted to identify optimal periods in which individuals seek for increased support during exercise adoption.     

浅谈如何应用动力学普遍定理解题

根据动力学普遍定理的特点,通过分析已知量与待求量之间的关系、受力特征和运动特征,是应用动力学定理解题的一般方法与思路.     

R16V280ZJ型柴油机配气凸轮动力学计算

介绍R16V280ZJ型柴油机配气凸轮型线的运动学计算和相应的配气机构动力学计算,并进行了分析,结果表明,该凸轮型线能满足柴油机强化功率的要求,同时配气机构也有较好的动力学性能。     

跳远踏跳的运动生物力学研究综述

从运动学、动力学的角度对跳远起跳的生物力学研究加以归纳、总结。运动学指标包括着板角、着板前三四步的步长、起跳时间等；动力学指标以测力台获得的垂直方向的力为主，较详细地总结了踏跳过程的缓冲阶段、蹬伸阶段等不同阶段的力学特征。并用压力中心这个指标分析了不同的起跳技术的特点。     

基于服务价值链企业服务增值机理与内部营销——哈飞汽车工业集团实证研究

基于服务价值链的服务增值逻辑,分析企业服务增值的机理:增值动因、影响因素、增值过程,构建了服务价值链增值过程的系统动力学模型。通过对哈尔滨哈飞汽车工业集团的实证研究可以得出,服务价值链具有良好的服务增值特性。服务价值链系统可看做一个价值增加模式,此模式存在一个服务增值的关键点——内部营销。通过控制内部营可使企业内部价值、员工价值和顾客价值呈现和谐统一地持续增长。     

西藏普兰县可持续发展的系统动力学分析

建立了"资源环境—经济—社会"系统模型,分析了人口、畜牧业、资源、环境和旅游业子系统的内在机制及其相互之间的关系,提出了粪便生产与消耗归属与资源系统的观点。在仿真基础上,对旅游产业替代传统畜牧业的效果以及草原鼠害对环境影响等方面进行了研究,最后提出了进行产业替代和环境保护的对策建议。     

Effect of template shape on metal nanoimprinting: a dislocation dynamics study

Dislocation dynamics simulations are performed to investigate the effect of template shape on the nanoimprinting of metal layers. To this end, metal thin films are imprinted by a rigid template made of an array of equispaced indenters of various shapes, i.e., rectangular, wedge, and circular. The geometry of the indenters is chosen such that the contact area is approximately the same at the final imprinting depth. Results show that, for all template shapes, the final patterns strongly depend on the dislocation activity, and that each imprint differs from the neighboring ones. Large material pile ups appear between the imprints, such that polishing of the metal layer is suggested for application of the patterns in electronics. Rectangular indenters require the lowest imprinting force and achieve the deepest retained imprints.     

可持续发展模式下产业-区域经济的系统仿真研究——基于系统动力与灰色预测模型下宜宾产业发展演变

以宜宾产业结构为研究对象,以系统动力学理论为基础,对宜宾地区人才流、技术流、资金流和市场流的因果关系进行分析。应用灰色预测模型对产业结构的时空演化进行预测,比较不同预测结果,分析产业结构调整的主要因素,提出从生态、社会、经济等方面改善宜宾的发展状态,实现社会经济可持续发展。