我国大规模考试实施模式之分析

基于公平性、效率和可行性,本文比较和评价了我国当前四种大规模考试实施模式：省级政府、中央政府、企业和政府一企业模式,并根据不同的时限和情景状态,给出了相应的结论和建议。     

A Test Collection for the Evaluation of Content-Based Image Retrieval Algorithms—A User and Task-Based Approach

Content-based image retrieval (CBIR) algorithms have been seen as a promising access method for digital photograph collections. Unfortunately, we have very little evidence of the usefulness of these algorithms in real user needs and contexts. In this paper, we introduce a test collection for the evaluation of CBIR algorithms. In the test collection, the performance testing is based on photograph similarity perceived by end-users in the context of realistic illustration tasks and environment. The building process and the characteristics of the resulting test collection are outlined, including a typology of similarity criteria expressed by the subjects judging the similarity of photographs. A small-scale study on the consistency of similarity assessments is presented. A case evaluation of two CBIR algorithms is reported. The results show clear correlation between the subjects' similarity assessments and the functioning of feature parameters of the tested algorithms.     

我国优秀男子背越式跳高运动员力量训练水平的检查与评定

通过对我国22名优秀男子背越式跳高运动员6项力量素质指标的研究,建立了我国优秀男子背越式跳高运动员力量发展的检测模型,制定出各项力量素质评定标准和综合评定标准,并对模型和评定标准进行了实验训练。     

高校图书馆网络安全体系的构建

网络安全是高校图书馆现代化建设中迫在眉睫的一项重要任务。文章对目前威胁高校图书馆网络安全的因素作了比较全面的分析，并结合自身的管理实践，提出了构建图书馆网络安全防范体系的主要内容和方法。     

对改革体育成绩考核形式的探讨

通过对体育成绩考核改革的研究,设计了多次体育成绩考核制度,并在实施过程中发现:它能给学生提供控制自己学习成绩的机会,能调动学生学习的积极性,能促使学生主动地学习,而且提高了学生的整体素质.     

不同负荷因素对游泳运动员负荷后血乳酸、心率的影响

选择广东省游泳队20名运动员,研究最大强度负荷下负荷距离和负荷性质变化对游泳运动员负荷后机能状态的影响。结果表明:最大强度负荷后,血乳酸和心率并不呈同步变化趋势,心率指标的灵敏度较低,而血乳酸指标能较准确地区别游泳运动员机体承受不同负荷的变化。     

以求真务实的精神推进汉语教学工作--乌鲁木齐电大汉语教学工作现状调查分析报告

本文客观反映了所调查到的乌鲁木齐电大汉语教学的有关情况，并就当前汉语教学工作中存在的问题与困难进行了认真分析，提出了如何结合实际尽快推进汉语教学工作的建议与措施。     

Refinements Introduced in the Oddy Test Methodology

The ‘Oddy test’ is an accelerated corrosion test introduced in the 1970s at the British Museum to identify materials likely to emit volatile substances that could harm museum artefacts. It is carried out in many museums all around the world, but not always using the same methodology, which makes it difficult to compare and share test results between institutions. Refinements to the Oddy test methodology have been implemented at the British Museum over the last decade and the aim of this paper is to present these and promote consistency across institutions. The modifications introduced concern the method used to wash the glassware, the preparation of the metal coupons, and standard methods for preparing samples of liquid coatings, adhesives, and adhesive tapes. Finally, conducting Oddy tests is time consuming and measures employed at the British Museum to reduce the number of materials to be tested and streamline testing are described.     

基于化学核心素养的高中学业水平考试命题策略

化学学科核心素养构成要素之间具有内在的本质联系。根据高中学业水平考试的特征,化学学业水平考试命题必须坚持以化学核心素养为导向,准确把握"素养""情境""问题"和"知识"四个要素在命题中的定位及相互联系,围绕必备知识、关键能力、学科素养、核心价值的考查内容,建构以化学学科核心素养为导向的命题框架。