孔子儒家体育思想的核心内含及对现代人文体育观的影响*

孔子儒家体育思想是儒家文化思想体系中的重要组成部分,对我国体育思想及现代人文体育观的形成具有重要影响。在继承孔子儒家体育思想的方法上,只有深入理解其体育思想的核心内含,并将之融入世界文化的多元化发展之中,才能使现代人文体育观更具时代进步与社会发展所需要的精神价值。     

几个新的平面Bonnesen型不等式

在原Bonnesen型不等式基础上,利用积分几何方法推导出几个新的Bonnesen型不等式。     

Penetration of disk fragments following impact on thin plate

To investigate the ballistic resistance and failure pattern of aeroengine casing following the impact of disk fragments, and to determine the optimum case structure, the phenomena of a 1/3rd disk fragment impact on single and double-layered thin plate targets were simulated using nonlinear dynamical analysis software MSC.Dytran. Strain rate effect was introduced in a Johnson-Cook （JC） material model for the disk fragment and the plate. Impact modeling was based on the Arbitrary Lagrange-Eulerian method, and simulated using explicit finite element method （FEM）. Simulation results showed that the major failure pattern of the plate is shearing and tensile fracture with large plastic deformation. It was also concluded that the ballistic limit velocity increases with the standoffdistance when it is beyond a certain value, and that greater resistance is obtained when the front plate has either a proportionately low or high thickness. The impact resistance of a double-layered plate may exceed that of a single plate if the thicknesses and standoff distance of the two plates are set appropriately.     

格、俄战争——俄罗斯的战略困局

在2008年爆发的格、俄战争中,俄罗斯虽然以雷霆之势在军事上取得了压制性的胜利,但越来越多的迹象表明,在政治上,特别是在高加索区域原苏联各国政治外交的未来架构上,不利于俄罗斯的天平已经开始倾斜。     

强化考试机制 遏制考试作弊

考试作弊是一种逆社会行为,防治考试作弊已经成为当前各类考试面临的难题。如何防治考试作弊:一要加强考试宏观控制;二要精细考试微观环节;三要健全考试法制;四要强化考试硬件建设。只要全社会分工合作齐抓共管,考试作弊就会得到遏制乃至杜绝。     

驾驭奥运权力“烈马”——现代奥运权力异化及其消解

现代奥林匹克运动的有序开展,需要奥运公权力的公平行使加以保障,而因奥组委"逆向代表制"的不合理性以及奥运权力的强制性、扩张性、工具性等特性,导致奥运权力的滥用和失范,使体育社会公众权利遭受破坏。因此实现奥运权力公平运行是现代奥运会健康发展的有力保证。     

全容式 LNG 储罐桩基施工质量控制研究

全容式LNG低温储罐上部荷载较大,对差异沉降较敏感,基础施工要求非常严格。以天津全容式LNG储罐钻孔灌注桩施工为例,分析了影响桩基施工质量的因素,并提出了在施工过程中控制质量的措施及常见问题预防对策,以保障桩基施工质量。     

AP1000和M310安全壳冷却系统的对比与分析

随着核电发展对安全的要求越来越高,世界各国在新建核电项目上均以芋代核电技术为主,逐步取代原有的Ⅱ代和Ⅱ代+技术。AP1000作为芋代核电技术的代表,以非能动的特性显著提高了机组的安全性。通过对AP1000的非能动安全壳冷却系统(PCS)和M310的安全壳喷淋系统(EAS)进行比较分析,得出在安全壳冷却方面非能动系统较能动系统的优势。     

Creativity,Art and Learning: A Psycho‐Social Exploration of Uncertainty

What makes it possible for artists to stay with the anxieties and uncertainties of the creative process? This aspect of an artist's development is rarely theorised or addressed despite it being an essential aspect of creative practice. It is a capacity, similar to tacit knowing, that is gradually acquired and learnt, and cultivated over time as part of the process of practising art and being an artist. The role of tacit knowledge as a key aspect of fine art education is well documented and is a learning experience that artists are familiar with. However, what tends to get focused on in discussions about tacit knowing are the practical, usually physical and technical, aspects of learning from experience to the exclusion of a range of mental or psychological capacities that are also a fundamental part of the tacit knowing process and vital to the learning necessary to be an artist. These mental capacities, which include being able to tolerate high levels of excitability, periods of nothingness, chaos, uncertainty and not‐knowing, are also, I suggest, passed between tutor and student as a form of tacit knowledge. This article draws on the experience of one artist, both as a learner and as an emergent practising artist, in developing this ability. The role played by art tutors in supporting student artists to develop a capacity to stay with the anxieties of the creative process is also explored.     

20世纪60、70年代美国对中国核武器研制对策调整

冷战以来中美之间长期存在的敌视和猜忌使美国政府认定，中国拥有核武器会对其国家安全和全球战略利益构成巨大威胁。对美国政府解密外交档案的研究表明，尽管美国对中国发展核能力的对策制定一直受冷战格局和意识形态等诸多因素的羁绊，但最终仍完成了从敌视到承认的政策转变，体现出随着国际形势的变化美国在核政策上不得不转而采取较为现实和灵活的态度。