关于信息技术与环境保护问题探讨

信息技术与环境保护是当今社会的两大热门话题。本文把信息技术与环境保护联系起来进行讨论，并着重探讨利用信息技术进行环境保护以及“绿色计算机”的问题。     

基于虚拟环境的黄河仿真系统构建

虚拟现实的产生和发展无疑为加强地理科学研究提供了强大的手段和方法上的支持.本文从虚拟环境的角度出发,给出了一个黄河仿真系统的建设方案,它包括数据源、三维仿真地形库、三雏仿真模型库、三维仿真虚拟实现四大模块.然后详细探讨了黄河仿真系统的关键技术: ①通过对三维图形开发工具OpenGL的原理、实现功能等的分析,提出了在黄河仿真系统建设中OpenGL技术的具体应用实现方法,实现了实时动态漫游; ②基于MultiGen Creator的真实感三维模型建设; ③利用OpenGL和MO来实现三维场景与二维电子地图的互响应;这充分发挥了三维场景与二维电子地图各自的优势,有机地结合了三维虚拟场景的直观性、现实性、局部性和二维电子地图的宏观性、整体性、简洁性的优点,同时又克服了三维虚拟场景漫游的方向迷失感和二维电子地图的抽象多义性.     

高校图书馆在信息素养教育中的作用

本文简述了信息素养教育的概念、标准和必要性，并对信息素养教育的主要内容和高校图书馆在信息素养教育中的重要作用进行了探讨。     

篮球运动跳投训练浅析

运用理论分析的方法,阐述篮球运动中队员“跳投”的重要作用。通过三步系统化训练提高队员“跳投”的合理性及准确性,为大家提供参考。     

图书馆人力资源培训研究

通过对我国图书馆界人力资源培训的现状及存在问题的分析,提出一些合理化建议,以使各图书馆能立足实际,加强人力资源培训,提高员工素质,实现快速发展的战略目标.     

MODERN INDUSTRIAL TRAINING IN VOCATIONAL TECHNOLOGY EDUCATION

In this article the importance of modern industrial training in higher vocational technology education, the demands for the modem industrial training bases, the quality demands on the vocational technicians and how to enhance the quality of the students for vocational technology training are discussed. The discussions on the quality demands concentrate only on professional ethics.The integration of mechanical technology, electrical technology and optical technology is the main stream of manufacturing technology of modem industry. Great attention has to be devoted on the development of professional ethics. Industrial training must have clear purpose and aim.     

《国家体育锻炼标准》的实施与学校体育

《国家体育锻炼标准》作为一项国家体育法规,具有其权威性,它与学校体育工作密切结合,对推进学校体育工作的开展,有十分重要的意义     

Acute effects of intense interval training on running mechanics

The aims of this study were to determine if there are significant kinematic changes in running pattern after intense interval workouts, whether duration of recovery affects running kinematics, and whether changes in running economy are related to changes in running kinematics. Seven highly trained male endurance runners (VO 2max = 72.3 +/- 3.3 ml kg -1 min -1 ; mean +/- s) performed three interval running workouts of 10 X 400 m at a speed of 5.94 +/- 0.19 m s -1 (356 +/- 11.2 m min -1 ) with a minimum of 4 days recovery between runs. Recovery of 60, 120 or 180 s between each 400 m repetition was assigned at random. Before and after each workout, running economy and several kinematic variables were measured at speeds of 3.33 and 4.47 m s -1 (200 and 268 m min -1 ). Speed was found to have a significant effect on shank angle, knee velocity and stride length (P ? 0.05). Correlations between changes pre- and post-test for VO 2 (ml kg -1 min -1 ) and several kinematic variables were not significant (P > 0.05) at both speeds. In general, duration of recovery was not found to adversely affect running economy or the kinematic variables assessed, possibly because of intra-individual adaptations to fatigue.     

影响排球发球队员的心理因素及其调控与训练

排球比赛中的发球失误与发球队员的心理活动现象有着密切的关系。本文通过对运动员在发球失误时的动作表象进行了归类和统计学分析研究,指出在扎实基本功的基础之上进行发球的专项心理训练的必要性,同时针对各种失误现象采取了针对性训练。     

外籍教练执教中国男篮的启示

外籍教练执教中国男篮所体现出的新理念主要有以下几个方面:强调训练态度,提倡求真务实的科学训练 观;重视技、战术训练中的每一个细节,必须在观念、理论、训练实践和作风上全方位下功夫提高防守水平。