加强管理健全制度 提高实验教学质量

通过物理实验教学的实践，证明了实验室是提高学生思维能力、动手能力的重要基地。要提高实验教学的质量，培养出符合时代要求的人才，既要提高师资水平，发挥教师的积极性，也要加强实验室的建设和管理。     

独立学院大学物理教学的改进措施研究

分析了独立学院大学物理教学工作中存在的一些主要问题,并探讨了为提高独立学院大学物理的教学质量应该采用的改革措施,如强化大学物理对专业人才培养服务的模块化教学、促进大学物理和专业课程相结合的师资建设、达到最佳教学效果的课程设置体系优化和以应用能力为标准的考核方式等。     

加强以人文本的实验室建设,促进师生发展

实验室文化是校园文化的重要组成部分,实验室文化建设包括物质文化建设、制度文化建设和精神文化建设。物理实验课是理工科高校的基本公共课程之一,物理实验室文化建设要遵循以人为本的原则,物质文化建设以师生需求为出发点,制度文化建设要因地制宜,规章的制定要有的放矢、有可执行性,丰富的文化墙设计辅助完成精神文化建设。以人为本的实验室文化建设,促进了师生的共同发展。     

关于独立学院大学物理教学的思考

独立学院是我国高等教育在办学模式上的一种尝试,它是公办高等院校教学资源与社会资金有机结合的产物．独立学院的生源是本科第三批学生,其高考成绩一般要比本科第二批学生低几十分．其生源的特殊性,在很大程度上决定其教学方式和模式的特殊性,并直接影响着教学质量的提高．     

广西独立学院大学物理教学模式优化改革——基于学生实践创新能力的培养

广西独立学院的物理教学模式面临教学目的不明确、授课方式单一等缺点,而影响独立学院物理教学的因素主要是整体构建意识的缺乏、学生知识基础的薄弱和教师教学能力的不足。要培养独立学院学生实践创新能力,独立学院必须转变对物理教学的看法,建立健全保障机制,培养并提升学院自有物理教师素质,改革优化教学模式。     

实验室开放与网络多媒体教学

开放物理实验教学能够激发学生学习的主动性和积极性，有利于培养学生的创新能力。本通过介绍开放实验教学的几种模式，说明实验室开放要与网络多媒体教学相结合，最后介绍了开放网络多媒体实验教学达到的效果。     

物理演示实验室建设的实践与探索

本文针对目前各院校十分重视物理演示实验室的建设，结合我院物理演示实验室的建设实践，谈几点建设体会。     

中国科学院激发态物理重点实验室——我国惟一专门从事发光学研究的开放实验室

中国科学院激发态物理重点实验室（以下简称实验室）始建于1989年，是国内惟一专门从事发光学及其应用研究的中国科学院开放实验室。徐叙珞院士是实验室的创始人和第一届主任，黄昆院士为实验室顾问（1989．4—1993．6）。现任实验室主任为申德振研究员。实验室依托于中国科学院长春光学精密机械与物理研究所，拥有12000平方米的独立实验楼。多年来实验室一直得到国家科技部、自然科学基金委及中国科学院的大力支持，特别是近年来在中国科学院知识创新工程和依托单位支持下，在学科建设、实验室建设、研究队伍建设及人才培养等方面取得了长足的进步。     

中国科学院激发态物理重点实验室——我国惟一专门从事发光学研究的开放实验室

中国科学院激发态物理重点实验室（以下简称实验室）始建于1989年，是国内惟一专门从事发光学及其应用研究盼中国科学院开放实验室。徐叙珞院士是实验室的创始人和第一届主任，黄昆院士为实验室顾问（1989．4～1993．6）。现任实验室主任为申德振研究员。实验室依托于中国科学院长春光学精密机械与物理研究所，拥有12000平方米的独立实验楼。多年来实验室一直得到国家科技部、自然科学基金委及中国科学院的大力支持，特别是近年来在中国科学院知识创新工程和依托单位支持下，在学科建设、实验室建设、研究队伍建设及人才培养等方面取得了长足的进步。     

理性、有序地建设探究实验室

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.     

EPICS在加速器控制系统中的应用

 介绍了当前国内外大型加速器实验室采用的主流控制系统软件开发工具EPICS的总体结构和特点,主要介绍了ASYN结构和特点,以及对使用ASYN软件包建立磁铁电源串口设备支持模块进行的研究,并将其应用于中国工程物理研究院驱动自由电子激光的30 MeV直线加速器磁铁电源控制系统中。同时还具体介绍了磁铁电源控制系统的结构以及系统软件设计,为直线加速器控制系统的建设做好准备工作。使用EPICS开发工具建立的加速器控制系统可以满足实验要求的高可靠性和高稳定性,从而为自由电子激光实验提供高品质束流。     

Potential low frequency ground vibration (<6.3 Hz) impacts from underground LRT operations

Vibration sensitive research activities at the laboratories of the University of Washington (UW) Physics and Astronomy Building (PAB) were a critical issue for the design of the Sound Transit Link Light Rail LRT system in Seattle, Washington. A study was conducted to measure and predict low frequency ground vibration generated by the LRT operations. The University's concern was an on-going research experiment in gravity, which had sensitivity to vibration below 6.3 Hz. The experiment was located on an independent concrete slab in an area cut-out from the building foundation with no connection to the building structure. Another concern was the planned future construction of a Life Sciences Center with vibration sensitive test equipment. This paper presents the results of a study to estimate the ground displacement at these buildings using empirical measured data of a similar deep tunnel transit system and finite difference modelling analysis.     

A standard method to calibrate sonochemical efficiency of an individual reaction system

Fricke reaction, KI oxidation and decomposition of porphyrin derivatives by use of seven types of sonochemical apparatus in four different laboratories were examined in the range of frequency of 19.5 kHz to 1.2 MHz. The ultrasonic energy dissipated into an apparatus was determined also by calorimetry. Sonochemical efficiency of Fricke reaction and KI oxidation was defined as the number of reacted molecule per unit ultrasonic energy. The sonochemical efficiency is independent of experimental conditions such as the shape of sample cell and irradiation instruments, but depends on the ultrasonic frequency. We propose the KI oxidation dosimetry using 0.1 moldm(-3) KI solution as a standard method to calibrate the sonochemical efficiency of an individual reaction system.     

Reproducibility experiments on measuring acoustical properties of rigid-frame porous media (round-robin tests)

This paper reports the results of reproducibility experiments on the interlaboratory characterization of the acoustical properties of three types of consolidated porous media: granulated porous rubber, reticulated foam, and fiberglass. The measurements are conducted in several independent laboratories in Europe and North America. The studied acoustical characteristics are the surface complex acoustic impedance at normal incidence and plane wave absorption coefficient which are determined using the standard impedance tube method. The paper provides detailed procedures related to sample preparation and installation and it discusses the dispersion in the acoustical material property observed between individual material samples and laboratories. The importance of the boundary conditions, homogeneity of the porous material structure, and stability of the adopted signal processing method are highlighted.     

嵌入式Linux根文件系统的构建与分析

Linux系统移植主要包括bootloader的移植、内核移植、根文件系统的移植等三大部分。在基于Linux的嵌入式系统的构建过程中,根文件系统是不可缺少的重要组成部分。重点对利用busybox构建根文件系统的过程进行了详细的讲解,包括busybox的配置过程,根文件系统的构建过程,Web服务器BOA的构建过程,网络视频服务器MJPG-streamer的构建过程,NFS挂载根文件系统的测试过程,以及三种文件系统Cramfs、JFFS2及Ramdisk的制作过程,将几种不同的文件系统的性能进行了对比分析。实验表明制作完成的三种文件系统能够正常使用,并且运行稳定。     

Studying the Dynamics of Hybrid X-Pinches

Since the first experiments with hybrid X-pinches (HXP), it has been shown that a short wire between two conical tungsten electrodes produces the same radiation as a standard X-pinch. Since HXP has a simple construction, it is commonly used in many laboratories instead of standard pinches. Although details of the HXP dynamics remain poorly studied, the main factors governing HXP formation are investigated experimentally in this work. It is shown that the process of the electrode plasma formation is one of the main factors that lead to single hot spot bursts. Experimental results allow the fitting of HXP parameters and determination of the size of the source of X-ray radiation. It is also shown the radiation of HXP can be used as a source for point projection radiography in the wavelength range of soft to hard X-rays. Such sources can be also used for absorption spectroscopy and even electron beams.     

The CO-CO dimer as a nonrigid molecular system

A model for describing the spectrum of internal motions of the carbon monoxide dimer CO-CO is constructed with allowance for nonrigid transitions between its independent equilibrium configurations. The model construction is based on use of the symmetry-group chain methods currently being developed, which allow one to describe internal dynamics without resorting to equations of motion.     

Intercomparison measurements of Rn concentration in water samples in Poland

The paper presents the results of intercalibration measurements of ²²²Rn concentration in water samples. The aim of the experiments was to evaluate the different measurement methods of radon determination in water samples performed by eleven laboratories in Poland and to test these methods in field work. In the years 2001-2003 three national intercomparison experiments were organized. The results allowed the participating laboratories to improve their measurement methodologies and to achieve better, i.e. more convergent results of determining radon concentration in water samples. The results show that the use of liquid-scintillation technique seems to be the best measurement method. It should be emphasized that comparative experiments are essential for all laboratories and they should be carried out as often as possible, based both on prepared samples with known concentration values of ²²²Rn and natural water samples, the most commonly used in laboratory practice.     

Electrical AC loss measurements of Bi-2223 tapes, performed under the Brite EuRam Research programme SACPA

A series of electrical AC loss measurements on Bi-2223 tapes have been performed under the Brite Euram project SACPA. This included, for the first time, a round-robin of independent self-field AC loss measurements between four laboratories. The very close agreement of data demonstrates the validity of the electrical technique and lays the basis for a measurement standard. Other preliminary measurements in SACPA showing the variation of losses with frequency, temperature and applied DC field are also reported.