当代人类健康的危机及其体育理念

采取文献资料法，信息查询法等方法，对当今人类面临的健康危机和体育新的理念进行分析论证，研究表明，当代人类面临的健康危机是由多个因素组成的，人类在维护赖以生存的环境并与各种疾病作斗争的同时，必须树立新的体育理念，以克服现代社会进步给人类带来的负面效应，健康本身就是财富，健康可以创造财富，而起决定作用的是人们的健康观念和行为，所以积极健康观念和良好的体育行为本身也是财富。     

江西农村居民开展武术活动的现状与发展建议

为了解江西农村居民开展武术活动的情况,为江西全民健身提供指导,通过问卷调查,文献资料,专家访谈等方法,对江西农村居民的武术观念、习武行为和制约因素及发展趋势进行研究,针对以上现状提出江西农村居民参加活动的发展建议。     

对北方高校冰上课教学内容健身化改革的研究与实践

转变观念,树立"健康第一"的指导思想,建立以人为本,淡化竞技,注重健身,以冰上运动项目为手段,以提高学生身体综合素质和科学健身能力,培养终身体育意识为目的的冰上课新内容体系.经教学实践证明,新的冰上课健身化教学内容体系,能有效地激发学生学习的积极性,消除学生对滑冰的畏惧心理,使学生较快掌握滑行能力,提高了冰上课的教学质量.     

Environmentally-induced stone decay: the cumulative effects of crystallization–hydration cycles on a Lincolnshire oopelsparite limestone

An investigation has been undertaken at St Andrew’s church, Walpole St Andrew, Norfolk, to establish the underlying causes of the observed stone decay to the upper parts of the six stone piers. The stone decay was first recorded in the early 1930s. The salt-contaminated masonry within the church has been shown to undergo severe salt decay during the summer, with little damage occurring over the winter months. The south aisle piers have been shown to decay 2.5 times faster than the north aisle piers. Although crystallization–hydration cycles have been identified, the rate of decay is at its greatest when the cycling is relatively infrequent. This was not the expected trend. Furthermore, it has been shown that during extended periods where the ambient relative humidity is less than 75%, the rate of decay reaches a maximum. It is the length of this ‘drying’ period that apparently has the greatest influence on the rate of decay and could explain the significant difference in the rate of decay between the south and north aisle piers. The results have serious implications for passive conservation, where it is often recommended to lower the ambient relative humidity to well below the equilibrium relative humidity of the salt contaminant, to avoid crystallization–hydration cycles. Since, at the time of building, the church was situated on the coast, it is possible that the sodium chloride contamination occurred during the building process (1440–1520), particularly since the area was prone to sea-flooding at this time. Alternatively, the salt could have been applied as a treatment during the general restoration of 1897. Whatever the source of the salt, it seems likely that the ambient environment was changed by the insertion of a sealed floor in 1897, which could account for the onset of the salt decay.     

模拟船舶电站数据采集系统软件的开发

运行良好的模拟船舶电站必需有输入输出速度快、功能强大的微机数据采集系统的支持。本文介绍了模拟船舶电站数据采集系统软件的开发方法。该方法在实际应用中能满足用户要求，并产生较好的经济效益。     

罕品虫树合化玉

树化玉是地质学所称硅化木中的极品，主要成分为蛋白石和玉髓，密度为2.2-2.8克/厘米^3，硬度为摩氏7.4度，已超过翡翠的硬度。世界上只有少数国家有发现，其中首推缅甸产的色彩丰富，质地过硬，通体细腻光洁。