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Electrolytic Sampling from Pure Copper and Common Brasses Ⅰ: Calculation of the Mass Dissolved from the Samples according to Faraday's Law 被引量:2
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作者 Jin ZHANG Jian-Nan YANG(Chemistry Department, Liaoning University, Shenyang, 110036) 《Chinese Chemical Letters》 SCIE CAS CSCD 1997年第2期167-170,共4页
In a procedure for electrolytic dissolving pure copper and common brasses, the approximate electrochemical mole mass(k) of the sample was determined in accordance with the brand of the sample, a stitable electrolyte w... In a procedure for electrolytic dissolving pure copper and common brasses, the approximate electrochemical mole mass(k) of the sample was determined in accordance with the brand of the sample, a stitable electrolyte was selected to make the current efficiency equal to 100%, and then the dissolved mass of samples was calculated according to Faraday's law(m=klt).Three representative samples were sampled by the electrolytic dissolution method and the calculated dissolved amounts were equal to the values by weighing the anode.The cxperimental results of zinc and copper in the anode liquor are in agreement with certified values. 展开更多
关键词 MAss Electrolytic sampling from Pure Copper and Common Brasses Calculation of the Mass Dissolved from the samples according to faradays Law
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A New Insight for Faraday’s Law
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作者 Narahari V. Joshi 《World Journal of Mechanics》 2014年第11期309-314,共6页
The origin for one of the fundamental laws of electromagnetism, namely Faraday’s law is explained for the first time on the basis of the presence of strings in the form of a compact liquid. The rate of change of the ... The origin for one of the fundamental laws of electromagnetism, namely Faraday’s law is explained for the first time on the basis of the presence of strings in the form of a compact liquid. The rate of change of the magnetic field produces a pressure gradient in the medium giving rise to the fluid flow. According to fluid dynamics, the stress and the gradient of strain are originated in the space which creates vibrations in the system and is related with the electric field. The details of the mechanism which produces a circular motion of the electric field, XE, are also addressed. 展开更多
关键词 faradays LAW FLUID DYNAMICs MAGNETIC FIELD
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Ngawang Norbu’s Diary——a Record of a Special Mountaineering Event
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作者 Ngawang Norbu 《China's Tibet》 2008年第5期4-13,共10页
Editor's Notes: On May 8^(th),the Beijing Olympic torch relay team successfully reached the summit of Mt.Qomolangma. About 9:11a.m,at a spot 30 meters from the peak, Lozang Dradul ignited the first torch that had ... Editor's Notes: On May 8^(th),the Beijing Olympic torch relay team successfully reached the summit of Mt.Qomolangma. About 9:11a.m,at a spot 30 meters from the peak, Lozang Dradul ignited the first torch that had been named"Auspicious Clouds"and was held by the female Tibetan mountaineer Jiji.Then,the torch was relayed to Wang Yongfeng,Nyima Tsering,Huang Chungui。 展开更多
关键词 a Record of a special Mountaineering Event Ngawang Norbu’s diary
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The Magnetic Longitudinal (P-) Wave’s Propagation and Energy Models Underlying the Mechanisms of Its Capacity to Absorb Free Energy 被引量:1
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作者 Jianzhong Jiang Yufeng Wang 《Journal of Power and Energy Engineering》 2024年第7期39-62,共24页
The longitudinal wave term within Faraday’s law of electromagnetic induction (Faraday’s law) underwent recovery to ensure its suitability for theoretical derivation of the equation governing longitudinal electromagn... The longitudinal wave term within Faraday’s law of electromagnetic induction (Faraday’s law) underwent recovery to ensure its suitability for theoretical derivation of the equation governing longitudinal electromagnetic (LEM) waves. The revised Maxwell’s equations include the crucial parameters being the attenuation time constants of magnetic vortex potential and electric vortex potential generated by external electromagnetic field within the propagation medium. Specific expressions for them are obtained through theoretical analysis. Subsequently, a model for propagating magnetic P-wave generated by the superposition of a left-handed photo and a right-handed photon in a vacuum is formulated based on reevaluated total current law and revised Faraday’s law, covering wave equations, energy equation, as well as propagation mode involving mutual induction and conversion between scalar magnetic field and vortex electric field. Furthermore, through theoretical derivations centered around magnetic P-wave, evidence was presented regarding its ability to absorb huge free energy through the entangled interaction between zero-point vacuum energy field and the torsion field produced by the vortex electric field. 展开更多
关键词 QED (Quantum Electrodynamics) Energy Wave and TEM (Transverse Electromagnetic) Wave Magnetic P-Wave Modified faradays Law of Electromagnetic Induction Electric/Magnetic Vortex Potential Zero-Point Vacuum Energy
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Patient's Diary Records Hospital Change
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作者 SO CHUNG 《The Journal of Human Rights》 2012年第3期37-39,共3页
On January 27, 2012, So Chung, a Tibetan jour- nalist with Lhasa-based Tibet.cn was sent to thehospital due to a hypokalemia attack on his way to take photos in the coun- tryside during the Spring Festival. The hospit... On January 27, 2012, So Chung, a Tibetan jour- nalist with Lhasa-based Tibet.cn was sent to thehospital due to a hypokalemia attack on his way to take photos in the coun- tryside during the Spring Festival. The hospital he was taken to was the People's Hospital of northwest China's Tibet Autonomous Region, where he received effective treatment and careful nursing. 展开更多
关键词 Patient’s diary Records Hospital Change
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A Mode of Electromagnetic Wave Propagation Based on the Inter-induction of Scalar Electric Field and Vortex Magnetic Field
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作者 Jiang Jianzhong 《Journal of Environmental Science and Engineering(B)》 CAS 2024年第4期134-143,共10页
Drawing upon the electromagnetic conversion formulas in a continuous conductive medium,an extensive examination for total current law and Faraday’s law of electromagnetic induction(Faraday’s law)is undertaken to exp... Drawing upon the electromagnetic conversion formulas in a continuous conductive medium,an extensive examination for total current law and Faraday’s law of electromagnetic induction(Faraday’s law)is undertaken to expound on the laws of electromagnetic induction and conversion.The longitudinal wave term of Faraday’s law is reinstated to render it suitable for theoretical derivation of the LEM(Longitudinal Electromagnetic Wave)equation.Subsequently,we formulate the wave and energy equations for electric P-wave based on reevaluated total current law and modified Faraday’s law;meanwhile proposing a propagation mode that reveals its mechanisms absorbing free energy for LEM waves in a conductor predicated on interaction between scalar electric field and vortex magnetic field.Furthermore,through theoretical derivations based on LEM waves,insights into concealed relationships between electric P-wave and electromagnetism scalar potential are disclosed alongside the constraint equation between the wave velocities of LEM wave and TEM(Transverse Electromagnetic)waves,unveiling the significance of LEM wave. 展开更多
关键词 Quantum electrodynamics LEM modified faradays law of electromagnetic induction electromagnetic vortex potential zero-point vacuum energy
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On the Unipolar Generator: An Experimental and Theoretical Study
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作者 Konstantinos Patrinos 《Journal of Applied Mathematics and Physics》 2024年第8期2928-2958,共31页
When studying the phenomenon of the induced electromotive force, which originates from Faraday’s unipolar inductor, the contrast between Faraday’s view of the magnetic field dynamic lines and the theory of relativit... When studying the phenomenon of the induced electromotive force, which originates from Faraday’s unipolar inductor, the contrast between Faraday’s view of the magnetic field dynamic lines and the theory of relativity is revealed. In order to remove this contradiction, this phenomenon was studied in depth, theoretically and experimentally, using an experimental setup similar to Faraday’s. Calculations of the induced electromotive force, based on relativity on the one hand and on Faraday’s view on the other were made with the help of measurements of the magnetic field components. Accurate magnetic field measurements are confirmed by analytical calculations. Precise-induced electromotive force measurements confirmed Faraday’s view and contradicted the theory of relativity. 展开更多
关键词 faradays Experiment Unipolar Generator Homopolar Generator faradays Inductor Unipolar Induction
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稀土石榴石的磁光效应与L-S耦合的影响及温度的依赖性
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作者 张锡娟 邵争鸣 汪颖梅 《辽宁师范大学学报(自然科学版)》 CAS 1998年第1期32-34,共3页
用量子理论计算了Ce-YIG中的L-S耦合作用对Faraday旋转角的影响.我们发现,基组态与激发组态的L-S耦合作用对θF的影响是不同的,基组态的L-S耦合作用大,不可忽略,而激发组态的L-S耦合作用很小,可以忽略... 用量子理论计算了Ce-YIG中的L-S耦合作用对Faraday旋转角的影响.我们发现,基组态与激发组态的L-S耦合作用对θF的影响是不同的,基组态的L-S耦合作用大,不可忽略,而激发组态的L-S耦合作用很小,可以忽略.本文并定量地计算了Faraday旋转随温度变化的关系. 展开更多
关键词 L-s耦合 基组态 稀土石榴石 磁光效应 温度
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Faraday定律的相对论形式
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作者 浦天舒 《纺织高校基础科学学报》 CAS 2001年第4期342-345,共4页
推导了相对论形式的 Faraday定律 ,举例说明了静止和运动参照系下感应电动势的计算 .
关键词 faraday定律 相对论 感应电动势
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Induced Electromagnetic Fields Estimation in Spine Examinations of MRI Patients: A Re-Evaluation of Existing Clinical Protocols at a Hospital in Accra, Ghana
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作者 Frempong Acheampong Theresa Dery +1 位作者 Rita Appiah Daniel A. Abaye 《Journal of Applied Mathematics and Physics》 2018年第5期1065-1075,共11页
Patients undergoing Magnetic Resonance Imaging (MRI) are exposed to strong, non-uniform static magnetic fields outside of the central imaging region, in which the movement of the body may induce electric currents in t... Patients undergoing Magnetic Resonance Imaging (MRI) are exposed to strong, non-uniform static magnetic fields outside of the central imaging region, in which the movement of the body may induce electric currents in tissues which could possibly be harmful. The purpose of this study was to re-evaluate existing clinical protocols by determining the induced electromagnetic (EM) fields in MRI spine examinations. The study covered 120 MRI spine examinations at the MRI Unit of a hospital in Accra, Ghana. A numerical model based on Faraday’s equation was developed using the finite difference method (FDM) and MATLAB software to compute, first, a test simulation of induced EM field intensities and then actual measurements of induced fields on the spine. The simulation results were peak induced electric field, 0.39 V/m and current density, 0.039 A/m2. Patient results were;calculated maximum velocity, 0.29 m/s;peak induced electric field strength, 0.44 V/m, and current density, 0.043 A/m2. The levels of induced EM-fields were such that they would not pose any potential health hazards to the patients as these values were well below the recommended guidance levels set by the Directive IEC 60601-2-33 of the European Parliament. 展开更多
关键词 MRI sPINE EXAMINATIONs Finite DIFFERENCE Method faradays Equation
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Electromagnetic Self-Force Mechanisms and Origin of <i>R</i><sup>-1</sup>Term
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作者 Saeed Fathi Hamed Razavi 《Journal of Applied Mathematics and Physics》 2017年第5期1099-1105,共7页
An accelerating charged particle exerts a force upon itself. If we model the particle as a spherical shell of radius R, and calculate the force of one piece of this shell on another and eventually integrate over the w... An accelerating charged particle exerts a force upon itself. If we model the particle as a spherical shell of radius R, and calculate the force of one piece of this shell on another and eventually integrate over the whole particle, there will be a net force on the particle due to the breakdown of Newton’s third law. This symmetry breaking mechanism relies on the finite size of the particle;thus, as Feynman has stated, conceptually this mechanism doesn’t make good sense for point particles. Nonetheless, in the point particle limit, two terms survive in the self-force series: R0 and R-1 terms. The R0 term can alternatively be attributed to the well-known radiation reaction but the origin of R-1 term is not clear. In this study, we will show that this new term can be accounted for by an inductive mechanism in which the changing magnetic field induces an inductive force on the particle. Using this inductive mechanism, we derive R-1 term in an extremely easy way. 展开更多
关键词 ELECTROMAGNETIC self-Force self-Force Mechanisms Radiation Reaction faradays Law of Induction
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Mapping the Child’s Grey Interior:Authenticity of Plague Narrative in The Great Plague
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作者 SHI Long 《Journal of Literature and Art Studies》 2023年第4期272-275,共4页
The Great Plague:The Diary of Alice Paynton,London 1665-1666 adopts the realistic painting style and direct writing to the painful experience,describes the situation of the Great Plague in London truly from the perspe... The Great Plague:The Diary of Alice Paynton,London 1665-1666 adopts the realistic painting style and direct writing to the painful experience,describes the situation of the Great Plague in London truly from the perspective of children,and breaks people’s cognitive expectation of children’s literature,the construction of children’s Gray inner world is completed behind the true description of the Great Plague in London with the true brushwork,which presents a different world of childlike innocence.Despite the importance of epidemics writing in literature,the child’s diary perspective of them is one of the least developed of Plague Narrative.Only when authenticity and the child’s grey interior are integrated will we reveal a true picture of society as it was. 展开更多
关键词 The Great Plague The diary of Alice Paynton AUTHENTICITY plague narrative the child’s grey interior
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学生德育自我评价的内省传统与日记因应
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作者 黄小莲 陈嘉锐 《天津市教科院学报》 2024年第3期67-77,共11页
学生德育日记自我评价是基于我国近40年来德育评价领域出现的学生道德自我失语问题而提出的改革之钥。溯源儒家心性修养论所倡导的自我内省法,主张在“反省内求”所意指的自我修养中提升德性,以“为仁由己”助推学生“育己立德”的德育... 学生德育日记自我评价是基于我国近40年来德育评价领域出现的学生道德自我失语问题而提出的改革之钥。溯源儒家心性修养论所倡导的自我内省法,主张在“反省内求”所意指的自我修养中提升德性,以“为仁由己”助推学生“育己立德”的德育自主评价目标导向。学生德育日记评价通过学生对道德事件的价值判断唤醒道德自我知觉和道德提升感,实现道德认知能力的发展;帮助学生在日记叙事的自我反思中完成对道德情感的自我倾诉,发挥道德自豪对道德行为品质的强化功用,寻得道德内疚的疏解路向;适应学生道德动态发展特点,以合其志功的评价导向引导学生关注自身道德纵向发展。日记评价实践路向聚焦于日记自评与语文写作的融合、增值评价与过程评价的联合、自我隐私与坦诚沟通的和合,为学生道德自我评价提供适切的载体。 展开更多
关键词 自我评价 日记 内省传统 儒家心性修养论 学生德育评价改革
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2023年高考全国甲卷物理第25题的深入分析
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作者 罗恒 《物理通报》 CAS 2024年第6期133-136,共4页
对2023年高考物理全国甲卷第25题进行分析,从磁场中“导轨+滑杆”模型的特点出发,给出了在高中阶段此类题型的常见解答过程,并从微积分思想的角度分析微积分在解决电磁感应问题中的应用.同时,对题目中金属棒P、Q可能的碰撞次数进行了分... 对2023年高考物理全国甲卷第25题进行分析,从磁场中“导轨+滑杆”模型的特点出发,给出了在高中阶段此类题型的常见解答过程,并从微积分思想的角度分析微积分在解决电磁感应问题中的应用.同时,对题目中金属棒P、Q可能的碰撞次数进行了分析,题目中“碰撞一次后”的表述是十分严谨的. 展开更多
关键词 高考物理 法拉第电磁感应定律 微积分思想
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法拉第力线思想的形成过程 被引量:9
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作者 王洛印 胡化凯 孙洪庆 《自然科学史研究》 CSCD 北大核心 2009年第2期156-171,共16页
法拉第的电磁力线思想不仅对麦克斯韦建立电磁场理论具有重要影响,而且是经典电磁学的重要内容之一。根据《法拉第日记》及其他相关文献资料,对法拉第力线思想的形成与发展过程进行了分析和讨论,阐明了法拉第力线思想的形成与其实验研... 法拉第的电磁力线思想不仅对麦克斯韦建立电磁场理论具有重要影响,而且是经典电磁学的重要内容之一。根据《法拉第日记》及其他相关文献资料,对法拉第力线思想的形成与发展过程进行了分析和讨论,阐明了法拉第力线思想的形成与其实验研究活动之间的紧密联系,指出了力线思想的基本内涵及其意义。 展开更多
关键词 法拉第 力线《法拉第日记》 实验
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电磁感应定律的建立及法拉第思想的转变 被引量:14
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作者 王洛印 胡化凯 《哈尔滨工业大学学报(社会科学版)》 2009年第3期19-33,共15页
通过研究《法拉第日记》,并与法拉第公开发表的论文及其他研究资料进行对比分析,可以真实地说明法拉第电磁感应定律的建立过程以及法拉第思想的发展变化情况。法拉第在发现电磁感应现象之前已经预见到了感应电流的瞬时性;法拉第发表的... 通过研究《法拉第日记》,并与法拉第公开发表的论文及其他研究资料进行对比分析,可以真实地说明法拉第电磁感应定律的建立过程以及法拉第思想的发展变化情况。法拉第在发现电磁感应现象之前已经预见到了感应电流的瞬时性;法拉第发表的论文存在署名日期提前现象,因此,不能根据论文的署名时间判定法拉第的科学发现和理论的提出时间,法拉第在研究电磁感应现象期间,思想上存在一个从"电紧张态"向"磁力线"的转变过程,力线思想是在这期间形成和确立的。 展开更多
关键词 法拉第 法拉第日记 电磁感应 磁曲线 电紧张态
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法拉第对电磁旋转现象的研究 被引量:6
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作者 王洛印 胡化凯 《自然科学史研究》 CSCD 北大核心 2008年第4期418-428,共11页
阐述了法拉第发现电磁旋转现象的实验过程及其进行的相关研究,并通过与安培及沃拉斯顿的研究进行对比,说明法拉第的研究对两者均有借鉴,但法拉第在其研究过程中又有自己独特的方法和特点,这是他成功的原因所在;还探讨了法拉第研究电磁... 阐述了法拉第发现电磁旋转现象的实验过程及其进行的相关研究,并通过与安培及沃拉斯顿的研究进行对比,说明法拉第的研究对两者均有借鉴,但法拉第在其研究过程中又有自己独特的方法和特点,这是他成功的原因所在;还探讨了法拉第研究电磁旋转现象的起因、原始实验装置和指导思想,澄清了前人的一些认识分歧和错误,并对法拉第该阶段的研究方法和科学思想进行了讨论。 展开更多
关键词 法拉第 电磁旋转 安培 沃拉斯顿《法拉第日记》
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利用X射线微型计算机断层扫描技术(Micro-XCT)进行钢筋的通电腐蚀行为及裂缝的三维分布研究 被引量:10
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作者 孙红芳 赵钿钿 +5 位作者 李冠桦 辜炀 李嘉鸿 王耀城 刘伟 李大望 《电子显微学报》 CAS CSCD 2015年第6期514-520,共7页
为了揭示钢筋混凝土结构中的钢筋腐蚀情况及裂缝的三维分布,采用无损检测技术中的X射线计算机断层扫描技术(Micro-X-ray computed tomography)对水泥净浆包裹的钢筋试件在微米尺度进行了三维重构和定量分析,研究了钢筋腐蚀产物与裂缝之... 为了揭示钢筋混凝土结构中的钢筋腐蚀情况及裂缝的三维分布,采用无损检测技术中的X射线计算机断层扫描技术(Micro-X-ray computed tomography)对水泥净浆包裹的钢筋试件在微米尺度进行了三维重构和定量分析,研究了钢筋腐蚀产物与裂缝之间的关系,并将钢筋质量腐蚀率的实际值与理论值进行了对比。结果表明:X射线微型计算机断层扫描技术(Micro-XCT)能够从微米尺度反映水泥净浆试件中的钢筋腐蚀产物及裂缝的三维分布情况;裂缝的存在为氯离子进入钢筋表面提供了通道,是导致钢筋腐蚀的重要原因;分析计算所得钢筋质量腐蚀率的实际值与理论值较为符合。 展开更多
关键词 无损检测 Micro-XCT 钢筋腐蚀 裂缝分布 三维重构 法拉第定律
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混凝土中钢筋加速锈蚀方法探讨 被引量:43
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作者 曾严红 顾祥林 +1 位作者 张伟平 黄庆华 《结构工程师》 2009年第1期101-105,共5页
电化学加速锈蚀钢筋是大量获取锈蚀钢筋试件的有效方法。从钢筋电化学加速锈蚀机理出发,依据法拉第定律,探讨了电流密度、接线方法、电解液及构造措施对钢筋通电加速锈蚀效果的影响,并通过试验证明腐蚀过程中钢筋串联与并联效果相同。... 电化学加速锈蚀钢筋是大量获取锈蚀钢筋试件的有效方法。从钢筋电化学加速锈蚀机理出发,依据法拉第定律,探讨了电流密度、接线方法、电解液及构造措施对钢筋通电加速锈蚀效果的影响,并通过试验证明腐蚀过程中钢筋串联与并联效果相同。最后通过试验验证钢筋表面脱钝后与电解液充分接触的情况下,钢筋实际锈蚀率与理论锈蚀率基本一致,不同电流密度对通电加速锈蚀率影响较小,依据法拉第定律能较精确估算钢筋加速锈蚀的实际锈蚀率。 展开更多
关键词 法拉第定律 加速锈蚀 钢筋 混凝土
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法拉第对地磁电感应现象的研究 被引量:3
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作者 王洛印 胡化凯 《广西民族大学学报(自然科学版)》 CAS 2010年第2期7-16,共10页
通过研究《法拉第日记》及其他资料,详细叙述了法拉第对地磁电感应现象的研究过程,并对其该阶段的科学思想变化情况进行了探讨.指出:法拉第研究地磁电感应现象受到了地磁学研究的影响;通过研究地磁电感应现象,法拉第发现了电力、电流和... 通过研究《法拉第日记》及其他资料,详细叙述了法拉第对地磁电感应现象的研究过程,并对其该阶段的科学思想变化情况进行了探讨.指出:法拉第研究地磁电感应现象受到了地磁学研究的影响;通过研究地磁电感应现象,法拉第发现了电力、电流和电阻三者之间的相互关系,揭示了欧姆定律的内容. 展开更多
关键词 法拉第 《法拉第日记》 地磁电感应 电磁感应
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