基于时空数据融合的古城区停车需求模式识别

在城市机动化快速发展背景下,南京、苏州等城市的古城区往往因为建筑保护等原因加剧机动车停车供需矛盾.探寻各种缓解停车问题对策的基础是准确掌握实际停车需求.实践中,传统依赖人工调查采集或者停车场抽样数据的方式存在精度维度较低以及不可持续等缺陷.研究以苏州为实证对象,利用交通卡口等多源数据,提出一套目标区域停车需求估计,以及...     

英语应用能力等级考试对高职高专英语教学的反拨作用

英语测试是教师了解学生个体发展和教学反馈的重要手段。本文通过对高职高专英语应用能力B级考试测试题型的分析,归纳、总结了试卷的特点和重点,指出其对高职高专英语教学的教材、课堂教学模式,课程结构等几个方面所具有的反拨作用。     

Pre-service teachers' implicit and explicit beliefs about English language learners: An implicit association test study

Pre-service teachers' attitudes and beliefs about English Learners (ELs) are especially critical as they enter their professions among an increasingly diverse student population. This study uses an Implicit Association Test to explore implicit and explicit beliefs and attitudes of pre-service teachers about ELs. Pre-service teachers from a Southeastern U.S. university hold generally positive implicit beliefs about ELs and express positive expectations for working with ELs and school support. Implicit association test measures have potential as tools for preparing pre-service teachers and evaluating the impact of interventions that seek to improve teachers’ readiness to serve this population.     

Difference score reliabilities within the RIAS-2 and WISC-V

Many prominent intelligence tests (e.g., Wechsler Intelligence Scale for Children, Fifth Edition [WISC-V] and Reynolds Intellectual Abilities Scale, Second Edition [RIAS-2]) offer methods for computing subtest- and composite-level difference scores. This study uses data provided in the technical manual of the WISC-V and RIAS-2 to calculate reliability coefficients for difference scores. Subtest-level difference score reliabilities range from 0.59 to 0.99 for the RIAS-2 and from 0.53 to 0.87 for the WISC-V. Composite-level difference score reliabilities generally range from 0.23 to 0.95 for the RIAS-2 and from 0.36 to 0.87 for the WISC-V. Emphasis is placed on comparisons recommended by test publishers and a discussion of minimum requirements for interpretation of differences scores is provided.     

实现体育利益均衡的条件:基于制度供给与制度需求的分析

体育利益均衡是人们对现有体育利益格局的一种满足状态,体育利益均衡的动力是体育利益不均衡,阻力是体育制度变革的成本.体育利益均衡的实现条件是潜在的体育制度需求转变为现实的体育制度需求,同时潜在的体育制度供给转变为现实的体育制度供给.     

运用信息网络化技术构建高校《国家学生体质健康标准》测试评价系统研究

在调研其他高校的基础上,结合学校的贯彻实施,研究<国家学生体质健康标准>测试评价系统的环节、流程,提出运用信息网络化技术构建<国家学生体质健康标准>测试评价系统技术平台的设想并进行实践.为高校今后的<国家学生体质健康标准>实施提供理论与实践参考.     

Automatic measurement of key ski jumping phases and temporal events with a wearable system

We propose a new method, based on inertial sensors, to automatically measure at high frequency the durations of the main phases of ski jumping (i.e. take-off release, take-off, and early flight). The kinematics of the ski jumping movement were recorded by four inertial sensors, attached to the thigh and shank of junior athletes, for 40 jumps performed during indoor conditions and 36 jumps in field conditions. An algorithm was designed to detect temporal events from the recorded signals and to estimate the duration of each phase. These durations were evaluated against a reference camera-based motion capture system and by trainers conducting video observations. The precision for the take-off release and take-off durations (indoor < 39 ms, outdoor = 27 ms) can be considered technically valid for performance assessment. The errors for early flight duration (indoor = 22 ms, outdoor = 119 ms) were comparable to the trainers' variability and should be interpreted with caution. No significant changes in the error were noted between indoor and outdoor conditions, and individual jumping technique did not influence the error of take-off release and take-off. Therefore, the proposed system can provide valuable information for performance evaluation of ski jumpers during training sessions.     

江苏省首届体育教育专业学生基本功测试成绩综析

为推动体育教育专业的改革和发展,提高体育教育专业人才培养质量,对体育教育专业大学生的基本功进行了测试。运用文献资料法及数据统计法,对首届江苏省高校体育教育专业学生基本功测试结果进行了分析。结果表明:基本功测试方法内容全面,方法合理,结果客观真实,较为客观地反应了四所被测学校教育专业教学质量,有效促进了体育教育专业的建设和发展。     

全国健美操青少年测试赛身体形态测试分析

对全国健美操联赛青少年测试赛中形态测试结果及测试出现的问题进行分析,并对运动员各身体形态指标做了描述统计和分析。结果显示:从测试赛对形态指标的评分来看,竞技健美操运动员的身材比例要求特点是四肢较长、肩宽、胸厚、腰细、髋窄。运用皮尔逊相关系数的分析计算形态、体能、技能及成套测试得分的相关性,结果显示形态指标与体能、技能、成套测试成绩均无显著相关性,甚至呈一定的负相关性。形态评分标准不符合身体形态促进各项身体素质能力的规律,测试结果不能准确反映运动员竞技能力高低,评分标准不太合理。     

高原训练对游泳运动员的影响

以湖北省游泳队为期23天高原训练的10名队员为研究对象,对运动员的血乳酸、血红蛋白、睾酮、皮质醇等方面进行机能监测与分析,探讨高原训练对游泳的生理效应。结果验证了高原训练提高机能水平,乳酸——速度曲线右移,血红蛋白回升等,为监控训练提供了科学的数据,具有统计学意义。