本文采用探究式教学对电动力学课程的教学内容、教学方法、教学手段和考核形式进行了改革,提高了学生学习的积极性、开拓了学生的视野,培养了学生的能力,获得了较好的教学效果.

亟于新形势变革和社会需求,实践应用型本科道路,应用物理学专业在课程设置中加大实践课程比重,就应用物理学专业开设信号与系统课程建设和思考,从课程性质、授课技巧以及多方位教学手段突出物理与工程技术方面的融合,拓宽专业实践,培养厚基础、强技能、高素质创新实践型应用物理学专业人才.

结合多年数字电路实验教学的经验,认识到Multisim软件在教学中的优势,举例说明Muldsim在数字电路实验教学中的辅助作用,以提高教学效率.

自然科学类的通识课在培养大学生科学素质方面具有独特的功能和作用。在通识课《纳米的神奇与魅力》教学中通过教学内容的选取、演示实验的教学、科学探索事例的灌输、研究性学习模式的实施有效培养了大学生的科学素质。

On the basis of many years of practice in physics teaching using multimedia, this paper sums up the advantages of multimedia applications in teaching. After analyzing the problems in using of multimedia in physics teaching, workable solutions are proposed to improve the efficiency of physics teaching.

Laser diode end-pumped solid state green lasers are developing fast,and have been widely applied in communication,medical,laser display and scientific researching and other fields.The main research contents are still focused on high efficient,high power,high beam quality and/or high stability all solid state green lasers.It has more advantages for balancing the lasing performance while using method of intracavity frequency-doubling to produce green laser.After analyzing the researching history of LD end-pumped intracavity frequency-doubling green lasers,we can conclude that the goal of most researches is making a breakthrough in one or two aspects or achieving an optimization balance between several aspects of laser performance.It's important and has some benefits to make a comparison of relevant researches worldwidely for upcoming researches on green lasers and demarcate the current researching level.At the present time,it's true that certain one-sided performance of LD end-pumped intracavity frequency-doubling green laser has reached a very high level,and most of the achievements are contributed by domestic researchers.The current study should focus on how to take better way to make most of the performance indicators more prominent simultaneously.

本文首先介绍了多晶体微观组织观察和晶粒大小的X射线衍射法测量原理;继而对测试方法中试样、镍多晶体应力的测量程序进行初步的阐述分析。

In this paper,with molecular dynamics method to analyze the process of Ni3Al in crack propagation phenomenon,the corresponding failure mechanism of the crack is given by observing the stress field under the deformation mechanism and the competition mechanism,.