茶氨酸的生理作用及与运动的关系

茶氨酸是茶叶特有的1种氨基酸,是绿茶中有效的呈味物质,含量直接决定茶叶的品质。根据国内外已有的研究成果对茶氨酸的生理作用做一全面综述,并对其与运动的关系做一简要评述。其生理作用有降低血压、抗肿瘤、提高学习和记忆能力、放松、神经保护、抗疲劳、减轻体脂、免疫。茶氨酸是1种十分安全的、无毒的食品添加剂,可以提高运动能力,加速运动后疲劳的恢复,因此,可考虑将茶氨酸作为运动饮料的添加剂。     

蒙授体育教师培养目标定位的研究

为了使蒙授体育教师的培养目标更加符合社会的需要，更适合教学的需要，对26所中学的蒙授体育教师进行了抽样调查，通过调查和分析，对未来蒙授体育教师的基本能力、专业理论知识、术科知识等问题进行了初步的目标定位。     

掌握学习教学模式在体育术科教学中的应用研究

掌握学习理论与体育术科教学的相宜性在体育教学中具有重要地位。本分别从模式蕴含的理论、模式实施的目标、模式的操作程序、模式运作的条件、模式效果的评价五个方面对掌握学习教学模式进行了建构。     

运动队运动员思想的理解与管理

运动员是竞技体育的主体,只有做好运动员的思想工作,充分发挥他们的主观能动性,才能更好地完成各项训练任务;而充分地理解运动员,科学的切实有效的管理,对提高竞技体育水平是不可缺少的.     

基于语义联想的中文图像搜索引擎——构想与实验*

在分析了目前主流中文图像搜索引擎研究和开发的优点和缺点基础上，结合实际开发经验，提出一个基于语义联想的中文图像搜索引擎的构想。在图像内容信息表示上充分利用相关的文本信息。系统通过分析用户的检索行为记录，自动发现词间关系，并用知识库的方式来组织和存储图像信息，达到语义联想的功能。     

PLC模拟量信号输入的数字滤波法研究

可编程序控制器(下称PLC)是集微机技术、自动化技术、通讯技术于一体的通用工业自动控制装置,具有可靠性高、工作环境适应性较强、功能价格比高、使用方便等优点,已在工业控制的各个领域里得到了极为广泛的应用,成为实现工业自动化的一种强有力的工具。     

广西少数民族传统体育旅游资源评价

广西少数民族传统体育旅游资源，是广西各民族优秀传统化的一份宝贵财富，对它进行正确的认识和评价，将有助于开发利用这一独特旅游资源，促进广西旅游业的发展，着重分析了广西少数民族传统体育作为旅游资源的特点和审美价值。     

新课改中优秀数学老师基本素质解析

本文简要探讨了新课改中优秀数学老师所应具备的基本素质。     

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.