仪器分析是化学类本科生的必修基础课程,时代的发展使得分析方法和实验技术都产生了深刻的变化,这些都对仪器分析提出了越来越高的要求.本文旨在如何改革目前陈旧的教学模式,通过"N+1"模式进行仪器分析课程改革,注重过程考核,其中N的形式多样,包括课堂笔记、课堂提问、讨论、考勤、作业、单元测试、实践实验考核、期中考试等,而1为期末考试,以此激发学生的学习兴趣,全方位提高教学质量.

仪器分析课程是高校中很多专业均开设的重要专业基础课程.针对课程自身的特点,结合教学过程与经验,探索在教学过程中引入新的教学方法和手段,以培养学生学习兴趣和提升教学效果.

沿用几十年的四大基础化学课程,以二级学科为基础各成体系,内容重复,占用课时较多。本文从提高教学质量入手,重构基础化学课程体系,改革教学内容,改进教学方法。

The experimental and training center of comprehensive applied arts of Beijing Union University provides experimental teaching and training for more than 3600 liberal arts students majored in history,archival science,journalism,advertising,English and law,and some students majored in science.Based on 24 laboratories,how to train and improve students' applied abilities in adapting to work environment capability,and how to learn and solve problem capabilities by themselves are researched in depth.Aiming at the above-mentioned problems,some liberal arts students' jobs are investigated.By the needs of employers and characteristics of students of liberal arts,combined with the today's development of the multimedia information technology,a modular,task-oriented of experimental platform is designed for multimedia network technology and experimented on students majored in history(H & M,tourism),archival science,PSA(Public Service Administration),journalism,journalism(film and television).And now some thoughts about it are shared with everyone.

To measure the optical parameters of biological tissue, the laser imaging system of the diffusing reflection and the transmission measurements based on CCD was designed. The absorption coefficient (μa) and the reduced scattering coefficient (μ's) of the biological tissue simulating liquid (Intralipid-20% diluents) were derived from nonlinear regression of the diffusion equation with spatially resolved steady-state diffuse reflectance which was measured by CCD. At the same time, the reduced scattering coefficient (μ's) of the biological tissue simulating liquid (Intralipid-20% diluents) was also derived from linear regression of the Beer-Lambert equation with transmission light intensity of the biological tissue simulating liquid (Intralipid-20% diluents) which was measured by CCD for the different titer, which is used as the calibration of the non-invasively method. The optical parameters of the same sample measured by CCD diffusing reflection and transmission measurements were compared. The results of the two methods were approximately consistent. Furthermore, the optical parameters of Eggplant and Murphy were measured by CCD diffusing reflection measurements. So the technique of laser scattering imaging analysis is useful for measuring the optical properties of the vegetable tissues.

<正>北京联合大学应用文科综合实验教学中心(以下简称"文科中心")是一个全校性人文社科类专业的综合实验教学平台。文科中心设有教学副校长任主任的实验教学指导委员会,实行中心主任负责制。文科

For non-invasively measuring optical parameters of biological tissues,CCD non-invasive measurement technique was introduced.Under irradiation of continuous He-Ne laser,spatially resolved steady-state diffuse reflectance of bio-tissue simulating liquor(Intralipid-20% diluents)was measured by CCD equipment.Experimental data were compared with the data obtained from Monte Carlo simulation and both results were coherent in the 10mm.Optical parameters were derived from nonlinear regression of the diffusion equation with spatially resolved steady-state diffuse reflectance,and the result is similar to that reported by R.A.Bolt,et al in 1993.An idea of utilizing the CCD equipment to non-invasively measure optical parameters of bio-tissues was proposed for the first time and the feasibility was demonstrated by some preliminary tests.