民族传统体育对抗类项目视频分析与智能诊断系统研究*     

李春木  连〓迅 《广州体育学院学报》2016,(1):52-56

当前民族传统体育对抗类项目训练分析主要是以教练员主观经验判断为主,缺乏客观性和时效性.本研究搭建了一个ARM+ DSP+ CPLD技术框架平台,采用视频图像智能分析与处理技术对运动员的训练及比赛实况进行实时记录和智能诊断,得出可供教练员与运动员参考的处理结果,达到提高训练效率,提高比赛成绩的目的.  相似文献   

北京市男子大学生足球运动员运动损伤特征与风险因素筛查     

吴放  陈效科 《北京体育大学学报》2017,40(7):56-62

摘要：目的：掌握北京市男子大学生足球运动员运动损伤的流行情况，对导致运动损伤发生的风险因素进行筛查，为进一步预防男子大学生足球运动损伤的发生提供依据。方法：应用方便分层抽样的方法，对参加北京市男子大学生足球联赛甲、乙、丙组的14所高校249名在校大学生足球运动员的损伤情况进行调查，应用T检验、单因素χ2检验与二元非条件logistic回归模型进行分析。结果与结论：充分了解了北京市男子大学生足球运动员的运动损伤现状和特征；筛查出为运动损伤发生的主要的风险因素；错误的技术动作、对手的粗野动作导致损伤发生的主要诱发事件。  相似文献   

Beliefs of teachers in Italian schools concerning the inclusion of disabled students: a Q‐sort analysis     

Franco Zambelli  Raffaele Bonni 《欧洲特需教育杂志》2013,28(3):351-366

This paper presents a course of research into the beliefs of class teachers concerning the scholastic integration of children with disabilities. In the current situation in Italy, due to limited specialist training, the attitudes that teachers develop can constitute an obstacle to the full realization of scholastic integration. Of the 23 teachers who took part in the study, conducted using the Q‐sort methodology, some had direct experience with scholastic integration (with opinions both positive and negative); and others had no direct experience (but also had both positive and negative opinions). Using the Q‐sort system, the paper sets out to verify whether effectively the simple manifestation of positive or negative beliefs in relation to inclusion on the part of the teachers (whether they had direct experience or not) could be confirmed, and whether it lent itself to being developed in reference to specific areas of scholastic experience. From the factorial analysis of the Q‐data, four factors emerged that confirm our hypothesis regarding the existence of different beliefs among teachers.  相似文献   

Talking about the test. Boundary work in primary school teachers' interactions around national testing of student performance     

《Teaching and Teacher Education》2013

There is currently a strong belief in accountability as a policy of action and standardized testing has been implemented in several countries. This article examines tensions that occur in meetings when primary school teachers in Norway discuss national testing, and how these are handled. In particular, tensions revolve around what is seen as internal (teachers' everyday work) and external (policies and practices outside the main frame of teaching). Even though national testing is mainly seen as external to teachers' work, teachers involve in boundary work and reshape professional discourse in order to create relevance and maintain legitimacy following new expectations.  相似文献   

Evaluating the Comparability of Paper‐ and Computer‐Based Science Tests Across Sex and SES Subgroups     

Jennifer Randall  Stephen Sireci  Xueming Li  Leah Kaira 《Educational Measurement》2012,31(4):2-12

As access and reliance on technology continue to increase, so does the use of computerized testing for admissions, licensure/certification, and accountability exams. Nonetheless, full computer‐based test (CBT) implementation can be difficult due to limited resources. As a result, some testing programs offer both CBT and paper‐based test (PBT) administration formats. In such situations, evidence that scores obtained from different formats are comparable must be gathered. In this study, we illustrate how contemporary statistical methods can be used to provide evidence regarding the comparability of CBT and PBT scores at the total test score and item levels. Specifically, we looked at the invariance of test structure and item functioning across test administration mode across subgroups of students defined by SES and sex. Multiple replications of both confirmatory factor analysis and Rasch differential item functioning analyses were used to assess invariance at the factorial and item levels. Results revealed a unidimensional construct with moderate statistical support for strong factorial‐level invariance across SES subgroups, and moderate support of invariance across sex. Issues involved in applying these analyses to future evaluations of the comparability of scores from different versions of a test are discussed.  相似文献   

Collaborative risk method for information security management practices: A case context within Turkey     

Sevgi Ozkan  Bilge Karabacak 《International Journal of Information Management》2010

In this case study, a collaborative risk method for information security management has been analyzed considering the common problems encountered during the implementation of ISO standards in eight Turkish public organizations. This proposed risk method has been applied within different public organizations and it has been demonstrated to be effective and problem-free. The fundamental issue is that there is no legislation that regulates the information security liabilities of the public organizations in Turkey. The findings and lessons learned presented in this case provide useful insights for practitioners when implementing information security management projects in other international public sector organizations.  相似文献   

区域创新中企业的交互式学习及其组成结构研究   总被引：1，自引：0，他引：1       下载免费PDF全文

薛捷 《科研管理》2010,31(1):116-125

摘要：区域创新中交互式学习活动的开展已经成为研究的热点问题。本研究探讨了交互式学习的概念内涵，基于已有研究提出了企业在区域中的交互式学习的组成和结构。通过问卷调查并采用验证性因子分析以及高阶因子分析等统计分析方法，对于交互式学习的组成和结构进行了实证检验，为区域创新中交互式学习活动的相关研究提供了一定的实证证据和理论依据。  相似文献   

哈尔滨市水资源供需分析与预测   总被引：2，自引：0，他引：2  

高云朝  李磊 《科技与管理》2010,12(2):5-9

在对哈尔滨市水资源进行供需分析的基础上,结合各地用水定额、人口数量、国民生产总值等预测了哈尔滨市各行政规划区,2010—2030年水资源的供需变化情况,并根据预测结果从工程、经济、政策、科技等方面给出了相关的政策建议。  相似文献   

美剧《越狱》对白语用分析     

潘国豪 《江西师范大学学报(哲学社会科学版)》2010,43(3):136-139

《越狱》是美国福克斯电视台于2005年推出的剧情类连续剧。该剧成功地展示了影视剧作叙事艺术的精髓。剧内对白为语用研究提供了丰富的语料，借助合作原则的理论对这些语料进行研究，不仅可以探索影视语言的语用与修辞特色，还有助于理解角色的成长以及进一步探究剧情矛盾发展的特征。  相似文献   

长三角地区科技企业孵化器运行效率研究——基于DEA的有效性分析   总被引：6，自引：0，他引：6       下载免费PDF全文

殷群  张娇 《科学学研究》2010,28(1):86-94

运用数据包络分析方法评价研究了长三角地区企业孵化器的综合效率、技术效率以及规模效率,进而提出了提高企业孵化器运行效率的调整和改进思路:一方面应控制资源投入的冗余;另一方面应提高资源的产出水平。  相似文献