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在体育教学的课程中,学生会因为身体素质差、基础训练不足和疲劳等多种原因造成运动损伤,这些运动损伤在很大程度上影响了学生正常的体育锻炼。本文通过教师自身多年的教学经验,应用运动医学损伤的理论知识和体育教学相结合,研究体育教学中常见的运动损伤应对措施及其预防的方法,并进行归纳总结,为体育教师和学生提供参考。 相似文献
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The high temperature heat pump and desiccant wheel(HTHPDW) system can make full use of heat released from the condenser of heat pump for DW regeneration without additional heat. In this study, DW operation in the HTHPDW system was investigated experimentally, and the optimization analysis of HTHPDW system was carried out. The performance of DW had influence on the dehumidification(evaluated by dehumidification and regeneration effectiveness) and cooling load(evaluated by thermal and adiabatic effectiveness). The results show that the enthalpy increase occurred in all the experiments. Compared to the isosteric heat, heat accumulation in the desiccant and matrix material and heat leakage from regeneration side to process side have greater influence on the adiabatic effectiveness. Higher regeneration temperature leads to lower adiabatic effectiveness that increases more cooling load of the system. When the regeneration temperature is 63℃, the maximal dehumidification effectiveness is 35.4% and the satisfied adiabatic effectiveness is 88%, which contributes to the optimal balance between dehumidification and cooling. 相似文献
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交际法在很大程度上以通用外语教学为主,即教学内容以日常使用的语言为主,培养人们获得在日常生活中运用外语达到交际目的的能力.在交际化的教学过程中,学生不单是操练活动的主动者,还是构成影响所操练的话语功能的社会因素之一.所以教学过程的组织应以学生为主,教师的责任是给学生提供交际情景、场合,帮助学生创造性地、自由地表达、交流自己的意念、思想.…… 相似文献
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交际法在很大程度上以通用外语教学为主,即教学内容以日常使用的语言为主,培养人们获得在日常生活中运用外语达到交际目的的能力.在交际化的教学过程中,学生不单是操练活动的主动者,还是构成影响所操练的话语功能的社会因素之一.所以教学过程的组织应以学生为主,教师的责任是给学生提供交际情景、场合,帮助学生创造性地、自由地表达、交流自己的意念、思想. 相似文献
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体验教学模式是初中音乐课堂教学中最重要的模式之一．它以学生主动参与直接体验音乐活动为主要形式．重在学生的参与体验。即学生通过教师精心组织、安排活动,参与到教学之中。主动与教师一起进行教学活动。各种音乐教学活动是联系教师、学生和教学内容的纽带,音乐活动的过程就是学生情感、认知和行为协调的过程。在这样的教学模式里,师生地位平等。突显学生的主体地位,充分发挥教师的主导作用,体现了“主导”与“主体”的有机统一。由此。打造像日本教育家佐藤学所说的“润泽的课堂”。 相似文献
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An explosion-proof dual throttling air-conditioning system was put forward to solve the heat dissipation and internal dewing problems of explosion-proof frequency converter in the underground coal mine. This study investigated the feasibility and benefits of explosion-proof dual throttling cooling and dehumidification air-conditioning system applied to the explosion-proof frequency converter. The physical model of dual throttling air-conditioning system was established and its performance parameter was described by mathematical method. The design calculation of the system has also been done. The experimental result showed that the system reached the steady state at the refrigeration mode after running 45 min, and the maximum internal temperature of the flame-proof cavity was 31.0 ℃. The system reached the steady state at the dehumidification mode after running 37 min. The maximum internal relative humidity and temperature of the flame-proof cavity were 33.4% and 36.3 ℃, respectively. Therefore, the proposed system had excellent ability of heat dissipation and avoided internal dewing. Compared with water cooling system, it was more energy-saving and economical. The airflow field of dual throttling air-conditioning system was also studied by CFD simulation. It was found that the result of CFD numerical simulation was highly consistent with the experimental data. 相似文献
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通识教育的核心理念是全人教育,要将通识教育理念贯穿于教学全过程,提高知识的整合性和贯通性,促进学生综合能力的发展,培养有责任感的公民.天津大学"城市生态建筑技术"课程,依托丰富生动的教学内容,润物细无声的思政设计,多形式的互动式教学的课堂组织,过程化的考评模式,在提升学生知识吸收和综合运用能力的同时,提升学生的沟通表达... 相似文献
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当前,"保健"已成为城市老年人最为关注的问题,各种名目繁多的保健品、药品、医疗器械如雨后春笋般冒了出来.尽管执法部门加大执法力度,媒体不断曝光各种形式的销售骗局,但一些医药公司打着"义诊"、"专家讲座"、"免费赠送"的牌子迷惑中老年人的现象仍屡有发生,这类陷阱主要以免费义诊、免费送药、健康讲座等方式进行销售,甚至一部分人假扮为医生、专家、教授等,以骗取老年人的信任,引诱老年人以高价购买其产品,近年来,此类非法义诊案例不断增多,有愈演愈烈之势. 相似文献
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