排序方式： 共有54条查询结果，搜索用时 15 毫秒
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采用文献资料法、调查法、因素分析法和实验法，对足球专修学生成绩的评定问题进行了比较系统的综合研究，为制定评定学生足球专项成绩体系和权重等提供了客观依据。建立了技、战术考核评分模式。 相似文献
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郑惠群 《宁波职业技术学院学报》2005,9(5):10-12
轮轴称重仪是测量车辆各轮、轴重及车辆总重的称重仪器,影响轮轴称重仪称重误差的因素很多,本文将车辆本身结构对轮轴称重仪的误差影响及其他因素的误差影响进行全面分析. 相似文献
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在教学设计中,核心素养是三维课程目标的继承与发展,是教学适应社会发展的理论指导。社会生活对于学生的发展提出新的要求,这种要求在职业教育阶段更为突出。在食品、药品生产与经营相关专业的职业教育中,做出精准快速的称量操作,是学生应该掌握的基础技能和职业素质。这项实训课程应不断创新教学设计,体现核心素养。 相似文献
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《Journal of College Student Psychotherapy》2013,27(1):78-91
This study investigated weighing and body-monitoring behaviors, as well as psychological and behavioral reactions to weighing, among female college students. Weighing and body monitoring were engaged in by the majority of participants. Participants changed food intake and exercise based on weight. About 63% reported that the scale number impacts their mood, and 50% and 48% indicated that it impacts their sexual comfort and self-esteem, respectively. Most did not perceive self-weighing to be harmful. College counselors should be aware that weighing and body monitoring are normative, with negative psychological outcomes associated with weighing for a substantive percentage of college women. 相似文献
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正确而熟练地掌握试样的称量方法是分析化学实验中最基本的操作技能之一。熟练地掌握分析天平的使用,并能根据不同的称量对象和不同的天平类型,采用相应的称量方法和操作步骤。针对机械天平,主要涉及三种常用的称量方法,其中最常用的是递减称量法。 相似文献
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佟莹欣 《辽宁科技学院学报》2006,8(3):16-17
文章着重介绍了基于恒流源激励的远距离高精度电子秤,这种电子秤克服了基于恒压源激励的电子秤在远距离传输信号的时候,信号不稳度而造成的精度下降问题,同时实践证明基于恒流源激励的电子秤在温度系数上也低于基于恒压源的电子秤. 相似文献
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采用实验法建立了自动化身体成分测试分析系统。结果表明,本系统成功地实现了对身体成分测定的实验操作及数据采集,具有较高的精确性和可信度。 相似文献
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王再冉 《商丘职业技术学院学报》2004,3(1):36-37
“推敲”这一典故是中国文学史上的一段佳话。关于它的来源，后人传述版本很多，介绍评说也颇不同，但这些并未影响“推敲”成为一个使用频率极高的合成词。 相似文献
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The weighing system designed for large structure object is mainly composed of three parts. The part of hydraulic system is made up of hydraulic cylinders, high pressure hydraulic hoses and electric pumps; the part of computer controlling system comprises pressure sensors, displacement sensors, data acquisitions, RS 485 network and the computer controlling model; the part of loading system is composed of the fulcrum structure and the concrete girder. The measurement principle and composition of the weighing system are discussed in this paper. Credibility and security of the weighing system are fully considered during the design phase. The hydraulic system is controlled by pilot operated check valves in case of the sudden loss of system pressure. The states of all gauges and RS485 network are monitored by computer controlling system functioning in different modules. When the system is running incorrectly, it will be switched to manual mode and give alarm. The finite element method is employed to analyze fulcrum structure so that the system has enough intensity to be lifted. Hence the reliability of the whole system is enhanced. 相似文献