浅谈开展课程建设与提高实验课教学质量

本文就如何开展物理实验课程建设，提高教学质量，从几方面进行了讨论和研究。     

物理教学过程要符合认知规律

阐述了初中物理课堂的教学设计应该从学生的角度出发,尽可能符合学生的认知规律.题目的讲解不要就题论题,为讲解而讲解.     

工科《大学物理实验》教材建设与实践

本文介绍了工科《大学物理实验》教材体系内容、教学模式及第二课堂教学几个方面的改革与实践探讨。     

大学物理课程的教学内容改革和教材资源建设

总结了教育部教指委教改项目大学物理课程与中学物理课程衔接研究的情况:圆满地完成了该项目预定的研究任务,取得了发表32篇教学研究论文并出版10本系列教材的成果,该成果具有数量多、水平高和效果好之特点,先后被评为河南大学教学成果特等奖、河南省优秀教学成果二等奖.     

基于物理认知规律的解题思路

针对学生解答高考题型中综合性问题时遇到的困难,在分析其原因的基础上,运用穆良柱物理认知规律模型,总结并归纳出解答高考题型中综合性问题的解题思路.以2020年高考理综全国卷Ⅰ第25题为例,详细介绍了基于物理认知规律的解题思路的具体应用.     

灵活运用教材搭好登高阶梯——从力的教学入手探究初高中物理顺利过渡的教学实践

介绍了如何贯彻新课改理念,从教材切入突破的实践过程及具体做法.     

对中美物理教材知识难度差异的分析与思考

通过分析我国人教版物理教材与美国教材《Physics:PrinciplesandProblems》的知识难度差异,试图挖掘出影响中美两国物理教材编写的深层原因,并找出我国物理课程改革当中的不合理因素,为课程改革提出几点可行的建议.     

我们的课程建设

本文介绍了为全面提高大学物理实验课程的教学质量，近年来我们在教材建设、教学方法和内容的改革及实验室管理等方面所做的工作。     

借鉴项目教学思想 创新高职教材体系

高职物理教材建设是职业学校课程改革的重要组成部分．本文试从物理课程与电工、电子类专业课有效教学的角度,阐释高职物理教材的体系,以期对正在进行的高职物理教材研究有所帮助．     

马氏定律与哈勃定律的辨析

本文从理论,实验上论证了“马氏（红移）定律”,同时指出所谓“退行速度Vr”或“星系红移”与“星系间的距离”无必须的关系,从这个意义上来说,哈勃定律是错误的。     

Properties of Building and Plastic Materials in the THz Range

We present measurements of the frequency dependent refractive index and absorption coefficient of a variety of common building and plastic materials between 100 and 1000 GHz. Accurate knowledge of the material parameters is indispensable for the modeling of bound media propagation phenomena including single and multiple reflections, transmission, diffraction and scattering effects. These models are for example required for a reliable channel simulation to investigate signal propagation in future wireless communication systems operating with Gigabit data rates at frequencies above 100 GHz. Also, the measured material parameters can be used for the investigation and development of THz system components.     

Applications of Terahertz Spectroscopy in the Field of Construction and Building Materials

Abstract: In last two decades, rapid development in the field of terahertz (THz) technology has opened new possibilities for creating innovative imaging and sensing systems. Although the applications of THz technology in different sectors constantly increase, the construction industry lags behind them. The aim of this article is to review the current applications of THz spectroscopy in research and industry related to construction and building materials, along with the key drawbacks of technology and recommendations for future use. The review concludes that THz spectroscopy and imaging have promising potential and provide many opportunities for applications in construction and building materials characterization.     

应用原子荧光光谱法研究废旧碱性电池中汞、砷的分布和迁移规律

研究了无汞碱性电池各主要组成部件（由内至外为：锌粉、浆纸、碳粉、金属外壳、塑料包皮）内汞（Hg）、砷（As）的分布规律和随时间变化规律。将不同出厂时间的电池按上述部件解剖消解后,分别采用原子荧光光谱法（AFS）测定各部件中Hg、As含量,进而分别绘制出其随环境存放时间变化图。结果表明：电池中Hg总量随在环境中的存放时间延长而下降,As总量则增加。电池中不同部位Hg、As含量差别较大;且随着存放时间延长,各部件含量变化明显。而电池表面选材对汞、砷的分布及迁移影响显著。     

Undergraduate Analytical Chemistry: To Use and Evaluate Organic Chelators for Spectrophotometric Determination of Iron

Abstract

An analytical chemistry laboratory project to use and evaluate pyridyl‐ and triazine‐containing chelators for spectrophotometric determination of iron is described. The “Iron Project” introduces students to UV‐visible spectrophotometry and Beer's law via hands‐on development and use of spectrophotometric methods for iron. Nine chelators are currently available for use. Students perform their proposed work, culminating in formal papers and posters. Student values of molar absorptivities (?_max) and λ_max for ligands 1–9 agree with published values to within ±15% (?_max) and ±3 nm (λ_max) for 75% of results obtained so far. Stoichiometries for Fe(II) chelates of ligands 1–5 are within ±1 mole of ligand of the published ratios. Student work shows a basic understanding of Beer's law as well as a need to improve writing, problem‐solving, and laboratory skills.     

Principle of Unattainability of absolute zero temperature,the Third Law of Thermodynamics,and projective quantum measurements

The Principle of Unattainability rules out the attainment of absolute zero temperature by any finite physical means, no matter how idealised they could be. Nevertheless, we clarify that the Third Law of Thermodynamics, as defined by Nernst's heat theorem statement, is distinct from the Principle of Unattainability in the sense that the Third Law is mathematically equivalent only to the unattainability of absolute zero temperature by quasi-static adiabatic processes. This, on the one hand, leaves open the possibility of attainability of absolute zero by non-adiabatic means, without violating the Third Law. On the other hand, we point out some apparent incompatibility between the Postulate of Projective Measurement in quantum mechanics and the Principle of Unattainability in that projective measurements of energy could result in zero temperature.     

光波在左手材料中的菲涅尔公式和布儒斯特定律

根据Maxwell的电磁场理论,推导出单色平面光波入射到介电常量和磁导率分别为ε1、μ1和ε2、μ2的两种介质时的菲涅耳公式和反射率及透射率的普适表达形式.对于ε2<0 和,μ2<0的左手材料,普适菲涅耳公式同样适用.研究了光从右手材料入射到左手材料时反射和折射的特性,给出了反射光为全偏光时布儒斯特角应满足的条件,此条件说明,在左手材料中布儒斯特角不但与折射率有关而且与磁导率有关.     

荧光光谱法检测非水体系中蒽和芘

用荧光光谱法检测建立了非水体系中蒽和芘的测试方法,蒽和芘的检测线性范围分别为5.6×10^-9—2.8×10^-6mol/L和4.9×10^-8—1.47×10^-6mol/L,相关系数为0.99959和0.99822,检出限分别为0.356ng/mL,5.230ng/mL,回收率分别为86.61%—98.66%和96.60%—115.80%。考察了常见离子、时间以及温度对荧光强度的影响,结果表明,常见离子对分析检测干扰均不大,可忽略,在2h、5—55℃温度范围内,对荧光强度影响较弱,故此分析检测方法对温度的适应范围较宽。方法可直接用于食品、饮料、酒产品等非水体系中的蒽和芘的测定。     

分子点群的确定与典型分子点群显示系统设计

基于分子点群判别的系统方法和步骤，以MATLAB语言设计了分子点群判别的计算机程序和典型分子点群中旋转、反映、反演、移动操作的计算机模拟操作，为进一步开拓计算机在量子化学中的应用和建立量子化学计算工具箱做了有益的探索。