基于图像处理的布氏硬度测试系统设计

布氏硬度测试中,传统的方法是用读数显微镜读取压痕直径,然后查表获得材料的布氏硬度.该文介绍了一种全新的、基于图像处理的布氏硬度测试系统,它可以方便、快捷,精确地自动测量压痕面积,并直接显示测量结果,效率更高,精度更高.介绍了该系统的工作原理、测试过程,以及软件的设计.     

不同营养条件对杏鲍菇菌丝生长量的影响

以杏鲍菇的菌落直径作为指标,采用平板固体培养法,研究不同碳源和氮源对杏鲍菇菌丝生长的影响情况;结果表明:杏鲍菇菌丝生长的最适碳源是麦芽糖,其次是蔗糖、果糖、葡萄糖、乳糖;最适氮源为酵母粉,其次是牛肉膏、蛋白胨、硝酸铵、硫酸铵,其中,有机氮源明显优于无机氮源.     

田径运动员心理训练探讨

本文对田径运动员进行心理训练进行了探讨,对在以田径为代表的体能主导类运动项目中心理训练的现状进行了分析,探讨结合田径运动的特点进行心理技能训练应掌握的相应技术,并对在田径运动中进行心理技能训练提出了展望.     

武德对高校学生思想道德建设的价值思考

文章采用文献资料法、专家访谈法、逻辑分析法等研究方法,针对当前高校学生思想道德建设所存在的政治信仰迷茫、诚信意识淡薄、社会责任感缺乏、心理素质较差等问题,在阐述武德及其现代内涵的基础上,对武德对高校学生思想道德建设的价值进行了分析,并提出相应的建议,以期为加强高校学生的思想道德建设、促进学生的身心全面发展提供相应的对策。     

To preserve or enhance precious memories: a segmented market analysis of the history museum in Singapore

This study examines the value placed on museums by patrons and non-patrons and investigates the factors that affect this valuation with a view to boost visitorship. The total economic value of Singapore’s History Museum is at least US$57 million, and this is high relative to other countries, a fact which can be used to justify increased government funding towards museums as cultural capital. Females and high income people are the target groups for increased visitation, while among the non-patrons, the ethnic majority is another potential clientele. Somewhat surprising is the finding that neither patrons nor non-patrons see the museum as having significant tourist value, and contrary to prospect theory, there is a preference for enhancing the museum’s services over keeping the museum. These findings provide some direction for the management of the museum to improve its visitor appeal.     

Superior short-term learning effect of visual and sensory organisation ability when sensory information is unreliable in adolescent rhythmic gymnasts

Rhythmic gymnasts specialise in dynamic balance under sensory conditions of numerous somatosensory, visual, and vestibular stimulations. This study investigated whether adolescent rhythmic gymnasts are superior to peers in Sensory Organisation test (SOT) performance, which quantifies the ability to maintain standing balance in six sensory conditions, and explored whether they plateaued faster during familiarisation with the SOT. Three and six sessions of SOTs were administered to 15 female rhythmic gymnasts (15.0 ± 1.8 years) and matched peers (15.1 ± 2.1 years), respectively. The gymnasts were superior to their peers in terms of fitness measures, and their performance was better in the SOT equilibrium score when visual information was unreliable. The SOT learning effects were shown in more challenging sensory conditions between Sessions 1 and 2 and were equivalent in both groups; however, over time, the gymnasts gained marginally significant better visual ability and relied less on visual sense when unreliable. In conclusion, adolescent rhythmic gymnasts have generally the same sensory organisation ability and learning rates as their peers. However, when visual information is unreliable, they have superior sensory organisation ability and learn faster to rely less on visual sense.     

协同导向：美国青少年体质健康政策的演进与启示

协同导向是美国青少年体质健康政策的突出特征,主要体现在政策文本协同和政策制订协同两方面.在政策文本协同方面,通过梳理历年来体质测量、体育、教育、校园卫生和营养等方面的政策演进过程,发现其体现出较明显的健康促进导向作用.在政策制订协同方面,除了政府相关部门外,社会组织和社会精英人物也都积极参与政策制订,形成了国家政府部门和各界参与的有机融合.我国青少年体质健康亦面临类似问题,可借鉴美国经验,注重体育与营养政策的协同作用,注重跨界政策制订主体的协同参与,强化学校和社区等场域的协同连接,凸显学生校园营养行为的国家责任.     

基于体育产业需求下我国体育翻译人才分层次培养的综合模式研究

通过辨析“体育外语人才”“体育英语人才”“体育翻译人才”的概念,界定出体育翻译人才的概念.在此基础上借鉴NAETI的等级划分标准,从体育翻译人才能力层次分为三级并提出高级体育翻译人才的培养将为重中之重.通过对“体育+外语”和“外语+体育”在体育翻译人才培养中优劣分析,提出培养应重点放在“外语+体育”方向上或者外语院校与体育院校联合培养上.在此基础上构建了高级体育翻译人才的培养模式.     

高温环境下咖啡因对耐力大学生运动员运动中唾液sIgA、溶菌酶的影响

探讨高温环境下运动中,口服咖啡因对男大学生运动员运动中唾液分泌型免疫球蛋白A（sIgA）和溶菌酶（lysozyme,LZM）的影响。采用实验研究方法,以13名男性耐力性项目大学生运动员为研究对象。每名研究对象在温度为33℃、相对湿度为65%的实验室完成两次实验（咖啡因运动实验和对照运动实验）。每次实验中,采集运动前60 min、运动前即刻、运动20 min、运动结束即刻的唾液样本,测定唾液sIgA、LZM的浓度。实验结果显示,口服咖啡因对高温环境下耐力大学生运动员运动中唾液sIgA无影响,但会降低唾液LZM水平,高温环境、中等强度运动使男耐力大学生运动员唾液sIgA和LZM的水平升高。     

Tianxia system on a snail's horns

Abstract

This article aims to report the findings from some recent researches on the historical formation of the concept of tianxia and its original meanings. In the light of these findings, I would like to make some comments on the Chinese philosopher Zhao Tingyang's works on the tianxia system. I demonstrate that the concept of tianxia portrayed by Zhao is at odds with the historical concepts of tianxia in many ways, and that the challenge raised by the latter for Chinese nationalism today is unanswered. I also examine Zhao's proposal of the tianxia system and point out that this proposal as a universalist commitment to a philosophy of the world seems to have failed on both the motivational and theoretical levels. In conclusion, I make an observation about a problem which might have a profound but inimical effect on the creativity of Chinese intellectual minds, namely, the urge to make chinoiserie theories at the expense of theoretical coherence and logical consistency.