共查询到19条相似文献,搜索用时 140 毫秒
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理性、有序地建设探究实验室 总被引:1,自引:0,他引:1
建设探究实验室是提高学生对学习、学科兴趣的重要举措.本文提出了一套探究实验室评价方案以期对实验室的建设和发展有所帮助.总体评价和导向性评价基于对一个个实验就一些指标进行评估以及其后的统计.我们还对一些深层次的要求和指标进行了探讨. 相似文献
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综合指数法是多目标评价中一种常用的评价方法,本文根据物理实验室的特点,通过构建运行效率的评价模型指标体系,利用综合指数法对物理实验室的运行效率进行了综合评价. 相似文献
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井下核磁共振流体分析实验室及其应用 总被引:1,自引:1,他引:0
井下流体分析在储层实时评价有十分重要的应用. 该文介绍了NMR流体分析实验室的发展,并以哈里伯顿的井下NMR流体分析实验室为例, 详细讨论了其关键技术,包括探头结构、磁体结构和电路结构,探讨了获取流体核磁共振特性参数的测量方法. NMR流体分析实验室可以获取流体的多种重要参数,结合NMR测井能够进行综合解释,其实时评价性能实现NMR测量的优势. 相似文献
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《光谱学与光谱分析》2009,(4)
由中国分析测试协会主办、《分析试验室》编辑部承办的“第4届全国实验室管理科学研讨会”定于2009年7月在甘肃省兰州市召开。会议内容包括实验室管理科学、实验室认证认可、实验室比对、实验室信息管理系统(LIMS)、实验室仪器设备运行及考核、实验室技术人员培训等有关方面的学术研讨。 相似文献
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物理实验室的开放和精细化管理,是各高校必须面对的问题。从实验室开放的作用和方法以及实验项目改革等方面进行了简要的论述和探索。 相似文献
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本文介绍实验课程利用计算机进行教学和管理的改革,更新了教学内容和方法,建立了实验室管理的新模式,实现了实验全过程的计算机监控与管理。 相似文献
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大学物理实验室开放是以实验为方法和手段、以学生自学为主的一种研究性学习方式,而对应的实验室管理工作是实现开放的基本保证,本文对大学物理开放实验室的管理工作进行了探讨。 相似文献
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The Wilson plot method is a well-known tool used in practical applications and research activities that involve the analysis of different heat exchanger devices. Therefore, it is of interest to researchers and engineers working on heat transfer and related fields. Moreover, the application of this method is simple enough to be taught in laboratory practices with students. Taking into account the reasons cited above, a simple experimental apparatus has been designed and built at our laboratory. In this article, the calculation procedure to apply the Wilson plot method is explained and characteristic experimental results for a smooth tube and a spirally corrugated tube are reported. Moreover, the experimental results are compared with different correlations proposed in the literature. 相似文献
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传统车载激光惯导算法验证方式需要消耗大量的人力物力,而且算法性能的评估结果受各种外界因素影响较大,针对上述问题,提出基于实验室半物理仿真平台的激光惯导算法验证方法,并搭建了该仿真平台。研究表明,基于实验室半物理仿真平台的激光惯导算法验证方法相比传统算法验证方法具有快捷、简单、准确、客观等诸多优点。 相似文献
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《Radiation measurements》1999,31(1-6):371-374
Radon measurements were provided during the different stages of building of a low-level laboratory in Belgrade. The depth of the laboratory is 12 m, equivalent to 30 m of water with an area of 45 m2. The whole of the laboratory is hermetically lined with 1 mm Al foil and is ventilated with filtered air. Radon concentrations were measured with the CR-39 detector as well as via the gamma-ray spectroscopic measurements. The radon concentrations in the air were achieved to 20 Bqm−3 and reduction of secondary and tertiary cosmic-ray fluxes is five times when ventilation, filtering and sealing was applied. 相似文献
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本文结合东华理工大学物理演示实验室的建设实践,分析了物理演示实验室的教学辅助、科普教育和创新实践等教育功能,并提出了建设多功能物理演示实验室的思路。 相似文献
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Y.H. Huang S.P. Ng L. Liu C.L. Li Y.S. Chen Y.Y. Hung 《Optics and Lasers in Engineering》2009,47(7-8):774-781
Shearography has been widely adopted for nondestructive testing and evaluation of various materials, especially in the rubber industry and aerospace industry. It detects flaws and defects by identifying deformation anomalies when the specimen is stressed by a certain means. Conventional stressing methods for shearography include pressurization, mechanical or acoustic loading and vibration excitation. These stressing techniques are favorably applied in various applications. In this study, we propose a novel impulsive thermal stressing method using high-power flash lamps for convenient nondestructive testing and evaluation in both laboratory and industrial environment. The proposed technique employs a high-energy heat flux to excite the specimen and detects the thermal deformation anomaly using a shearographic setup. By incorporating a novel clustering phase extraction method, the movement of the continuously deforming object is obtained using only one single deformed speckle image at each deformed stage, thus enabling both qualitative and quantitative measurement. Experiments conducted on various samples with cracks and debonds demonstrate the practicability of proposed technique for both laboratory and industrial applications. 相似文献
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The practical applications of the method for retrospective 222Rn measurements by home stored CDs/DVDs need a proper metrological assurance. The specific feature of this method, as compared to other methods for retrospective 222Rn measurements is the possibility for an individual a posteriori calibration of the used CD/DVD-detectors. This paper describes a procedure to ensure the traceability of this method to a reference STAR laboratory. A set of 7 groups of CDs/DVDs were exposed to 4 reference 222Rn exposure levels. After that they were treated in the etching laboratory as ”real” detectors and the 222Rn concentrations were determined by applying an individual a posteriori calibration, correction for high track density and correction for depth at which the alpha tracks were etched. The results from all 7 groups of exposed detectors demonstrated relative variation from the reference values in the interval 3.4–23.4%. The results provide evidence that the routine measurements by the CD/DVD method warrant measurements with a relative uncertainty better than 25% and therefore this method is acceptable for large-scale applications. 相似文献