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探讨了原子物理学在现代科学技术中的学术战略地位以及素质教育中的重要作用,指出了在科教兴国、大力发展高科技的今天,原子物理学的教学只能加强、不能削弱。 相似文献
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物理学既然如此重要,因此,搞好并提高物理教学是各级教育管理部门与学校的一项重要任务.下面谈谈对物理教学的四点认识. 相似文献
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本文对变质量力学方程提出简单引入法,给出利于记忆的方程形式,并对文献[1]和[2]所提问题重新求解,指出其不足。 相似文献
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依据热学课程的教学实践,提出物理课程思政的5点思考,也是对课程思政的5点建议,即隐性思政、及时思政、点到即止,同时课程思政要有计划性和非针对性.在此基础之上,给出了具体案例和思政点.希望能与同行交流,起到抛砖引玉的作用. 相似文献
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钱学森 《原子与分子物理学报》2007,24(2):203-205
我们今天召开“首届原子分子物理与物理力学学术座谈会”,来了这么多代表,我非常高兴.这次会议,是请泉教授和我一起酝酿,由中国物理学会和中国力学学会联合召开的.请泉教授让我致开幕词,就算是一个开场白吧.精彩的内容还要由参加会议的同志们报告.我首先要给大家读一段周恩来总 相似文献
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力学是学生初中物理学习的难点, 学生对力学的一些概念感到似是而非, 觉得力学难学. 通过对学生
刚接触力学时最感到困惑不解的几个易混点的辨析能够让学生豁然开朗, 有助于学生克服对物理学习的畏难情
绪 相似文献
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The paper presents a brief review of the scientific work performed by the authors in the field of quantum mechanics and atomic, laser, and mathematical physics. The following problems are considered: the semiclassical theory of tunneling and multiphoton ionization of atoms and ions in a strong electromagnetic field; generalization of the Keldysh ionization theory to the relativistic case; calculation of the Coulomb corrections to the ionization rate of atoms for arbitrary values of the adiabaticity parameter γ: from γ ≪ 1 (the adiabatic region) to γ ≫ 1, when the laser field changes its direction and magnitude many times during the time of flight of the electron through the barrier; the Lorentz ionization of atoms moving in a constant magnetic field; the WKB approximation and the imaginary time method for describing electron tunneling through a time-varying barrier; the Stark effect in a strong field; the energy spectrum of a hydrogen atom in a strong and superstrong magnetic field; quantization with account of the barrier transparency; creation of electron-positron pairs from vacuum in a constant electric or intense pulsed (laser) field and the dependence of the number of pairs on the intensity and frequency of the laser field; the Feynman method of disentanglement of noncommuting operators and its applications: transitions between atomic states in an alternating magnetic field (the Majorana problem); a quantum oscillator with time-dependent frequency; and a singular oscillator. The mathematical problems of quantum mechanics are considered: the fall of a particle to the center; modification of the Bohr-Sommerfeld quantization condition for potentials with a barrier and the Kramers matching conditions; divergence of perturbation series and their summation; eigenvalues of the Casimir operators for irreducible representations of Lie groups, including the SU(2), SU(3), and SU(6) groups, which are widely used in physics. 相似文献
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通过热容量的实验值和理论值的比较,讨论了能量均分定理中自由度的冻结和解冻问题,并由此分析了能量均分定理的局限性和经典统计理论的适用范围. 相似文献
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S. A. Pozdneev 《Journal of Russian Laser Research》1998,19(2):105-115
The quantum theory of few-body scattering based on Faddeev-Yakubovsky integral and differential equa¬tions is applied to calculations of various processes (elastic, inelastic, atom exchange, and dissociative) in nuclear, atomic, and molecular physics. Analytical solutions of these equations are presented for various limiting cases. The methods used for solving the integral and differential systems of equations are discussed. 相似文献
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为了改进我国物理教学论教育硕士(专业型学位)的课程设置,通过访谈和问卷调查,对我国9所高等院校教育硕士(学科教学论.物理)的课程满意度进行了调查与分析.提出了课程设置应适当灵活多样,多设置一些与中学物理教育教学关系密切的课程,要重视论文写作类课程的设置等方面的课程建设建议. 相似文献
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通过德国卡尔斯鲁厄物理课程高中版教材与上海高中物理教材力学部分的比较研究发现,中德教材在教材结构、知识点分布与数量、概念展开的方式和概念系统等方面,具有很大的差异.德国教材的一些特点值得我们研究和借鉴. 相似文献
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《中国科学:物理学 力学 天文学(英文版)》2014,(10)
<正>(Formerly Science in China Series G:Physics,MechanicsAstronomy)ABOUT THE JOURNAL SCIENCE CHINA Physics,MechanicsAstronomy(Sci China-Phys Mech Astron)is a monthly peerreviewed research journal,founded in 2003,that is devoted to the publication of the basic and innovative research results of high quality in the fields of physics,mechanics and astronomy. 相似文献
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The adiabatic effective baryon-baryou interactions and dibaryon candidates are studied systematically with three constituent quark models based on different effective degrees of freedom:Glozman-Riska-Brown Goldstone boson exchange model based on constituent quark and Goldstone boson coupling;Fujiwara model based on constituent quark gluon coupling and Nijmegen one-boson exchange;QDCSM based on constituent quark and gluon coupling with quark delocalization and color screening.We find that the three models predicted the similar effective baryon-baryon interactions for roughly two thirds among the 64 states consisted of octet and decuplet baryons.The differences among three models and their separate characteristics are also studied. 相似文献