根据介质极化率求机械法拉第效应旋转角

通过对机械法拉第效应和磁法拉第效应关系的理论分析，总结出用介质极化率求机械法拉第效应旋转角的理论方法。     

法拉第效应实验中样品介质的色散与波长的关系

介绍了在法拉第效应实验中确定样品介质的色散dn／dλ和波长λ之间关系的两种方法。     

Accurate Jones Matrix of the Practical Faraday Rotator

TheFaradayrotatorisoneoftheessentialelementsofopticalisolatorsandopticalcirculators[1,2 ] ,whichiswidelyusedinopticalfibercommunicationandopticalprecisemea surementsystems .Asisknown ,itisconvenienttoresearchthetransformationsofpolarizedlighttopassthroughsomeop ticalelementswiththehelpofJonesmatricesoftheelements .Therefore ,itisnecessarytoknowtheJonesmatricesoftheopticalelements .FortheidealFaradayrotator,itsJonesma trixwhichisfamiliartouscanbeusedinsomesituations[3] .ButthepracticalFarada…     

抗磁性起源的两种经典解释

某些物质在外磁场作用下 ,呈现出抗磁性 ,现在的教材中对抗磁性起源主要是用电子轨道进动和电磁感应两种经典解释。论文对两种结果等效性作论证并予讨论     

Michael Faraday on the Learning of Science and Attitudes of Mind

The paper makes use of Michael Faraday's ideas about learning, in particular his thoughts about attitudes to the unknowns of science and the development of an attitude which improves scientific decision-making. An invented scenario involving nursery school children demonstrates some attitudes displayed there. Discussion of the scenario and variation in possible outcomes suggests that Faraday's views are relevant to scientific learning in general. The main thesis of the paper is that it is central to learning in science to acknowledge that there is an inner struggle involved in facing unknowns, and that empathy with the fears and expectations of learners is an essential quality if genuinely scientific thought is to develop. It is suggested, following Faraday, that understanding our own feelings while we teach is a pre-requisite to enabling such empathy and that only then will we be in a position to evaluate accurately whether or not our pupils are thinking scientifically.     

强激光脉冲产生的引力法拉第效应

1Introduction Generalrelativityisthetheoryofstudyinggravita tionandthestructureofspace time.Sinceitsestab lishment,ithasbeenattractinginterestsoftheoreti cians.However,thereislittleobservableandexperi mentalexaminationshowingthefeaturesoflarge scale structureofspace time.Withtechnologicaladvances, severalgravitationaleffectswereinvestigatedsuchas gravitationalwavetest,starkeffect,gravitationallens effect,gravitationalFaraday,etc.Inthispaperwe discussgravitationalFaradayeffect. Itiswellkn…     

用法拉第定律判定感应电动势方向的简捷方法

提出了一种用法拉第定律判定感应电动势方向的简捷方法,分析了流行教材判断方法的弊端,并给出了验证的实例.     

父爱缺失对《安琪拉的灰烬》中弗兰克成长的影响

《安琪拉的灰烬》描述了弗兰克苦难的成长历程,弗兰克小小年纪里所经受的人间疾苦,他在极端困难的生活中所发出的渴望的颤音,以及那不可思议的坚忍、乐观与热情曾令数亿计的读者感动。在成长为男子汉的过程中,父爱的缺失导致未成年的弗兰克必须早早承担起养家的重任,在人生路上历尽艰辛。     

不同光源对旋光效应实验测量的影响

采用调整三分视场寻找暗场以测定旋光度的实验方法,研究了钠灯、汞灯和日光灯对不同浓度蔗糖溶液旋光效应实验测量的影响。通过对测量数据的平均值、标准差以及最小二乘法直线拟合的斜率和相关系数的分析表明,对于单色的钠灯光源,在旋光度的测量准确度、旋光度与溶液浓度的直线拟合上都优于其他两种光源;而汞灯和日光灯的实验结果较为接近,这应该是与汞灯和日光灯有较为相似的线状光谱有关。此外,使用钠灯光源对比旋度的测量结果与已有的经验值也较为符合。因此,从实验的角度充分证明了钠灯是旋光效应实验测量效果非常好的一种光源。     

磁性材料的典型效应及其应用

本文通过热力学函数半定量地讨论了磁性材料的磁力效应、磁热效应,并定性地介绍了磁电阻效应和磁光效应及其应用．     

Contributions of Maxwell to electromagnetism

Maxwell, one of the greatest physicists of the nineteenth century, was the founder of a consistent theory of electromagnetism. However, it must be noted that significant discoveries and intelligent efforts of Coulomb, Volta, Ampére, Oersted, Faraday, Gauss, Poisson, Helmholtz and others preceded the work of Maxwell, enhancing a partial understanding of the connection between electricity and magnetism. Maxwell, by sheer logic and physical understanding of the earlier discoveries completed the unification of electricity and magnetism. The aim of this article is to describe Maxwell's contribution to electricity and magnetism. P V Panat is Professor of Physics at the Pune University, His main research interests are condensed matter theory and quantum optics.     

韩少功小说《爸爸爸》的神秘性浅探

韩少功的中篇小说《爸爸爸》是寻根小说的典型代表。小说中人物的生活方式、小说的叙事线索和叙事视角造就了小说文本的神秘性。这种神秘性给读者留下了无穷的回味与思考的空间,并引起对传统文化中神秘性的探寻。     

James Watt: Father of steam power

This article describes the success story of James Watt who had humble beginnings and yet changed the course of history by paving the way for the Industrial Revolution through his great inventions.     

"寻父"与"弑父":虹影小说的悖论式书写及其意义

虹影的小说中有大量的父女关系的书写,在这些父女关系的书写中主要包含了两种悖论性的基本元素:寻父与弑父,两者相互纠结,矛盾重重。小说的主人公(以女儿为主)由于无父的身世创伤以及由此带来的现实和精神的困境,迫切期待父亲将她们带离这种无能为力的泥淖之地。于是,寻父成为她们生活的动力与目的所在。但是,寻父的无望,成为弑父欲望的另一书写形式,伴随着弑父而来的是无尽的忏悔和依恋。虹影的这种悖论式的书写,与其创伤性的童年经验密不可分。     

"寻父"与"弑父":虹影小说的悖论式书写及其意义

虹影的小说中有大量的父女关系的书写,在这些父女关系的书写中主要包含了两种悖论性的基本元素:"寻父"与"弑父",两者相互纠结,矛盾重重.小说的主人公(以女儿为主)由于"无父"的身世创伤以及由此带来的现实和精神的困境,迫切期待"父亲"将她们带离这种"无能为力"的"泥淖之地".于是,"寻父"成为她们生活的动力与目的所在.但是,"寻父"的无望,成为弑父欲望的另一书写形式,伴随着弑父而来的是无尽的忏悔和依恋.虹影的这种悖论式的书写,与其创伤性的童年经验密不可分.     

浅谈电磁波对人体的影响

本文介绍电磁波对人体健康的影响，以及如何防护电磁辐射     

浅析电磁场的"势"

讨论了电磁场的各种“势”,分析了电势、磁标势、矢势、标势、推迟势、库仑势、电磁势…的适用范围,相互之间的区别和联系.指出了“运动电荷的推迟势”的说法不一定成立,阐明了量子力学要用到电磁势;在量子理论中,将电磁势看成一种数学工具而非物理现实是不对的,电磁势的物理效应是可观测的.     

磁介质抗磁性的经典解释

文章从经典物理角度出发,给出了磁介质抗磁性的经典解释方法。得出在外磁场中,抗磁性物质中的电子会产生附加磁矩△→↑Pm=-e^2r^2/4m→↑B0.