共查询到20条相似文献，搜索用时 437 毫秒
1.
研制了油品小呼吸蒸发损耗实验装置。实验结果表明，此装置结构紧凑、测试手段完善、操作安全方便、实验效果良好，理论计算与实际测量误差小于10%，有助于提高工作人员的理论分析能力和实践操作技能。 相似文献
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搞好自制实验装置提高实验教学水平 总被引：1，自引：0，他引：1
穆玉刚 《沈阳教育学院学报》2003,5(3):123-124
本文结合实验室管理工作实际，就如何搞好自制实验装置工作等问题，从充分认识自制实验装置工作的重要性、调动广大教师和实验技术人员的积极性及建立有效的保证监督措施等方面，谈了个人的认识。 相似文献
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针对我室原有电力拖动实验装置实践性差、利用率低等缺点，我们自行设计制作了一套电机与拖动综合实验装置。利用该装置可以完成《电机与拖动控制》、《PIC原理及应用》、《通用设备控制、等课程的实验。该装置不仅利用率高，而且能让学生在实验中真正做到手脑并用，把理论知识和实际有机地结合起来。一年来的实验证明，该装置对学生的培养和锻炼有很大帮助。 相似文献
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“探究pH对过氧化氢酶的影响”实验是高中生物必修教材（浙科版）中实验要求很高、操作难度很大的一个实验，教材为此设计了一个十分详细的实验方案，力求降低操作难度，确保实验的成功开展。但在实际的教学过程中，笔者发现，原实验方案的可操作性仍旧存在较大的缺陷，导致实验的成功率很低。究其原因，主要是实验装置的设计存在缺陷，导致实验的成功率很低。笔者结合教学实际，对此实验装置进行了重大改进，并取得了显著的效果。 相似文献
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凌骏 《中学生数理化(高中版)》2011,(7):96-96
一、装置的选择
目前教学中使用的水电解装置一般以霍夫曼定量电解装置为主，笔者尝试用多套水电解装置进行实验，从实际实验效果看，仪器厂生产的电解器效果要优于自制的电解装置，酸式滴定管电解装置要优于碱式滴定管电解装置，开放组装式电解装置要优于成套封闭式电解装置． 相似文献
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实验是物理学的基础，物理科学是在实验与理论相结合的基础上发展起来的．我们在实际的物理教学中应始终坚持这一科学方法，将实验贯穿于课堂教学中，从实验中获取真知．尤其是在提倡素质教育的今天，我们更应注重对知识的实际应用以及创新能力，自制教具，使实验装置更多更好地应用于教学．在这里。笔者要介绍一个自制的实验装置——伯努利效应演示实验装置． 相似文献
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开发了一套适用于大学实验教学的风力发电演示实验装置。装置演示了风力发电系统的组成，风力发电原理和相关空气动力学原理以及风力发电系统控制方法.该装置可以使工科学生了解风力发电的基本过程，普及可再生能源知识，增强环境保护意识。帮助学生进一步将所学的理论知识和实际应用结合，促进其综合素质的提高. 相似文献
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针对气垫导轨实验中遇到的变质量问题、恒力问题、等速发射等问题,分别设计和改进了相应的实验装置,对实验装置的可行性从理论上进行了分析,并用实际实验进行了验证． 相似文献
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我们把拉曼光谱仪与实验室自制的光纤探针结合起来,建立了微区拉曼光谱系统,并基于此装置进行了实际测量,效果较好. 相似文献
13.
丁智 《宁波职业技术学院学报》2012,(2):61-63
软件度量有三种,本文对其中的软件开发生产率的度量进行了研究,提出一套度量方法并将度量工作实用化。通过实例对三种典型的工作小组进行软件开发生产率度量分析,给出度量结果。它的实用化将对软件的高质量和高速发展有一定的影响。 相似文献
14.
流体输送综合实验平台的开发与应用 总被引：3，自引：0，他引：3
介绍了具有计算机在线数据采集与控制功能的流体输送综合实验平台的开发,及其在实验教学中的应用。平台合理地将流体输送所涉及的流动能量损失、流量计标定、输送机械性能测定与选型等实验内容融合,实现了过程、实验和研究的一体化,开出了一系列综合性、研究性实验内容。 相似文献
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Pablo Pirnay-Dummer Dirk Ifenthaler J. Michael Spector 《Educational technology research and development : ETR & D》2010,58(1):3-18
Effective and efficient measurement of the development of skill and knowledge, especially in domains of human activity that involve complex and challenging problems, is important with regard to workplace and academic performance. However, there has been little progress in the area of practical measurement and assessment, due in part to the lack of automated tools that are appropriate for assessing the acquisition and development of complex cognitive skills. In the last 2 years, an international team of researchers has developed and validated an integrated set of assessment tools called highly integrated model assessment technology and tools (HIMATT) which addresses this deficiency. HIMATT is web-based and has been shown to scale up for practical use in educational and workplace settings, unlike many of the research tools developed solely to study basic issues in human learning and performance. In this paper, we describe the functions of HIMATT and demonstrate several applications for its use. Additionally, we present two studies on the quality and usability of HIMATT. We conclude with research suggestions for the use of HIMATT and for its further development. 相似文献
16.
测控技术与仪器专业实践教学体系改革与探索 总被引：1，自引：0，他引：1
根据测控技术与仪器专业培养目标,探索建立以知识、技能、能力为核心的实践培养目标体系,新体系的基本框架由基础实验、专业实验、校内实践训练和校外实践训练4个模块组成,保证整个实践教学计划目标的实现。该体系对于提高测控技术与仪器专业学生综合能力和素质具有重要的作用。 相似文献
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At times, the same set of test questions is administered under different measurement conditions that might affect the psychometric properties of the test scores enough to warrant different score conversions for the different conditions. We propose a procedure for assessing the practical equivalence of conversions developed for the same set of test questions but administered under different measurement conditions. This procedure assesses whether the use of separate conversions for each condition has a desirable or undesirable effect. We distinguish effects due to differences in difficulty from effects due to rounding conventions. The proposed procedure provides objective empirical information that assists in deciding to report a common conversion for a set of items or a different conversion for the set of items when the set is administered under different measurement conditions. To illustrate the use of the procedure, we consider the case where a scrambled test form is used along with a base test form. If section order effects are detected between the scrambled and base forms, a decision needs to be made whether to report a single common conversion for both forms or to report separate conversions. 相似文献
18.
朱礼敏 《湖州师范学院学报》1992,(6)
本文采用系统思想,利用模糊数学中的隶属度函数为标度的测评标准,建立评价的数学模型,确定隶属度函数与评价的方式,以及评价因素的隶属度准则,认为用模糊数学中的隶属度函数为标度的测评标准来评价体育教师是一种简单、科学、实用的数学方法. 相似文献
19.
Yuan Gao 《Higher Education》2018,76(2):317-336
Since universities’ commitment to internationalisation has been increasing, instruments for measuring institutional internationalisation performance are urgently needed to monitor and evaluate the progress made about internationalisation. Although efforts have been made to develop various tools, an internationally applicable instrument for universities to measure and compare their internationalisation performance remains missing. This study attempted to develop an indicator framework of such kind to fill the gap. A total of 182 administrative staff and 17 policymakers from 17 flagship universities in Australia, Singapore and China were consulted in order to establish the framework. The study resulted in a set of 15 indicators that captures six key dimensions of university internationalisation. It attempts to cover internationalisation in its widest possible sense with practical number of indicators. This study also contributes to the knowledge body of developing measurement for university internationalisation by reflecting on the fundamental challenge of measuring the phenomenon. 相似文献
20.
《International Journal of Educational Research》1994,21(6):623-634
Much has been written about the possibilities of computer adaptive testing (CAT), but little practical success has been reported. Most proposals are so complicated and fraught with expected problems that one gets the impression the idea is hopeless. In fact, CAT enabled by the application of probabilistic conjoint measurement works well and the resulting data has shown that most of the expected problems do not necessarily appear. This chapter explains how probabilistic conjoint measurement enables CAT, reviews the results of some applications to medical certification problems in the U.S., and outlines how CAT leads to practical and useful computer assisted instruction. 相似文献