Energy dissipation of a ring-like metal rubber isolator

Metal rubber （MR） is a kind of homogeneous poroelastic damping material made of metal wire. In this paper, by ana- lyzing the forces on the MR isolator and the MR element, the hysteresis loops of the force and deformation are studied and verified by experiments. The results show that the force and displacement hysteresis loop of the MR isolator is described by the force and deformation hysteresis loops of the MR elements. In addition, the relationship between the energy dissipation coefficient of the MR element and that of the MR isolator is derived. The energy dissipation coefficient is programmed and calculated by MATLAB using experimental data, and the results are compared with the theoretical value. It is the basis for the design and applied research of the MR isolator in a future study.     

Im Anfang was das Bewusstsin, und das Bewusstsein war bei Sich Selbst, und das Bewusstsein was Sich Selbst. An actress must never lose her ego without it she has no talent. --Tom Lehrer

据说量子物理和相对论是现代物理的两大支柱.不过,这两大支柱是建立在self-adjointness,eigenvalue（vec-tor）,proper time（length）,proper Lorentz group,self-interference等事关＂自己的＂概念碎石上的.没了自我,物理学似乎少了很多内容.     

茶汤抗氧化活性的测定综合化学实验的研究

实验以潮州工夫茶文化为背景,在工夫茶传统冲泡工艺的基础上,采用茶汤抗氧化活性为评判指标,探讨工夫茶冲泡工艺的优化条件.实验内容包括文献调研、实验方案设计、实验操作、数据处理及小论文撰写等一系列学习任务.实践教学结果表明,将传统茶文化融入实验教学中,易于激发学生的学习兴趣,传递文化基因;引导学生从文化生活源头提出问题,运用科学方法分析问题、解决问题,利于学生熟悉科学过程,养成正确的科学思维习惯;同时,实践活动中学生会触及到多个学科领域、多重实验操作技能训练,可以全面提升学生的综合素养,达成课程育人目标.     

谈新课程视野下初中物理教学的一点思路

随着课程改革的深化推进，教师已由新课程理念的学习进入到教学实践层面的探索，新课程给我们带来了全新的教学理念，传统的教学方式已不能适应现代教学改革的需要，因此如何把新的教学理念有效导人课堂教学实践中来，是当前迫切需要解决的问题。从现行的新课程改革物理教育中看，怎样从不同的方位来提高学生物理学科的综合素质，开拓学生的创造思维能力，培养学生适应社会发展能力，如何才能真正地提高学生的物理素质？     

自制三种物理实验装置及演示

1演示超重现象 取透明塑料瓶一个，截去瓶底，并改用一张白纸封住底部（可用细线捆扎）．再取一段橡皮筋，一端和一柱形金属重物连结，并将重物放入瓶中，橡皮筋另一端固定在瓶口处．静止时重物不和白纸接触，约保持1cm距离．整个装置如图1所示．     

计算物理的教学改革研究与实践——与MATLAB软件的完美结合

针对《计算物理》课程教学的一些问题，提出了将本门课的教学与MATLAB软件相结合的改革措施．     

Recent results for single meson production from the Crystal-Barrel/TAPS experiment at ELSA

The present focus of the CBELSA/TAPS experiment is on meson-photoproduction off the nucleon using polarized photons and polarized targets. Here first preliminary results on the reactions γp → pπ and γp → pπ for both circularly and linearly polarized photons and a longitudinally polarized target are presented. Preliminary results for the beam asymmetry ∑ and the double polarization observable G have been extracted for both reactions using the linear polarization data. From the circular polarization data the observable E has been determined. Due to the near 4π angular coverage of the detector system these results cover almost the full solid angle.     

利用手机的一组小实验

手机用于教学别具新意,令人耳目一新,使人感到物理就在身边.下面就为大家提供几则实例.