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“磁性物理与磁性材料”课程多模式教学设计与探索
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作者 左淑兰 张虎 +1 位作者 吴煜烨 蒋成保 《教育教学论坛》 2023年第4期124-128,共5页
基于“强化基础、科教融通”的教学理念,提出针对性小班教学,将“知识点教学+翻转课堂+课堂研讨解决问题”等多模式融合的教学手段应用于“磁性物理与磁性材料”课程的教学实践。重视基础拓展的同时,紧跟科技前沿,激发学生研究兴趣,使... 基于“强化基础、科教融通”的教学理念,提出针对性小班教学,将“知识点教学+翻转课堂+课堂研讨解决问题”等多模式融合的教学手段应用于“磁性物理与磁性材料”课程的教学实践。重视基础拓展的同时,紧跟科技前沿,激发学生研究兴趣,使其积极主动学习。着眼于授课学生的科学研究兴趣和方向,开展针对性教学内容,引导学生将专业理论知识与科研实践相结合,激发学生对未来科研工作的兴趣与热情,助力培养基础知识扎实、自主学习能力强和创新意识高的新时代人才。 展开更多
关键词 磁性物理 磁性材料 多模式融合教学 重视基础拓展 紧跟科技前沿
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“磁性物理”课程探究式小班教学模式探索 被引量:2
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作者 孙科 余忠 +2 位作者 蒋晓娜 兰中文 郭荣迪 《实验科学与技术》 2017年第6期80-82,共3页
"磁性物理"课程是电子科技大学电子科学与技术专业的一门重要专业核心课程,其涉及的基础理论和物理图像较为抽象,因而传统的"教师一言堂"和"灌输式"教学方式不利于提升教学质量。基于此,该文对"磁... "磁性物理"课程是电子科技大学电子科学与技术专业的一门重要专业核心课程,其涉及的基础理论和物理图像较为抽象,因而传统的"教师一言堂"和"灌输式"教学方式不利于提升教学质量。基于此,该文对"磁性物理"课程的探究式小班教学模式进行探索。课程组采用"小班授课+小班研讨"的教学方式,结合问题导向、全员参与、汇报及答辩、理论联系实践等举措,调动了学生学习的积极性和兴趣,激发了学生的求知动力与探索精神,培养了学生的批判性思维和创新能力,最终取得了良好的教学效果。 展开更多
关键词 探究式小班教学 磁性物理课程 教学方法 教学效果
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注重《磁性物理》实验教学,培养大学生创新能力 被引量:3
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作者 余忠 兰中文 《电子科技大学学报(社科版)》 2005年第S1期116-117,共2页
实验教学是实施素质教育,培养创新人才最重要的环节之一,在专业基础课的教学活动中起着举足轻重的作用。本文主要讨论了《磁性物理学》实验教学的内容及创新性,并阐述了提高实验教学质量、培养大学生创新能力的几点措施。
关键词 实验教学 创新能力 磁性物理
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问题探究式教学在工科专业基础课中的应用——以磁性物理学课程为例 被引量:1
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作者 孙可为 金丹 +1 位作者 孙昱艳 汤云 《新西部(中旬·理论)》 2017年第1期137-138,共2页
本文阐述了问题探究式教学模式理论基础,以磁性物理学课程为例,探讨了其在工科专业基础课程的应用策略与实施过程,以期提高教学效果。
关键词 工科专业 基础课程 磁性物理 问题探究式 应用
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“磁性物理”课程体系构建与实践探索
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作者 杨小春 《科学大众(科技创新)》 2018年第10期76-77,共2页
广义的课程界定就是在学校指导下,学生所经历的全部经验,也就是学生学校的全部生活。文章基于学生学习现状,提出构建“磁性物理”课程,并进行实践探索,把国家课程转化为教师的理解,转化为教师能操作的实践,并在此过程中促进师生共同成长。
关键词 磁性物理 校本化课程 实践探索
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“磁性物理”课程体系构建与实践探索
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作者 杨小春 《科学大众(智慧教育)》 2019年第8期24-24,14,共2页
广义的课程界定就是在学校指导下,学生所经历的全部经验,也就是学生学校的全部生活。笔者基于学生学习现状,提出构建'磁性物理'课程,并进行实践探索,把国家课程转化为教师的理解,转化为教师能操作的实践,并在此过程中促进师生... 广义的课程界定就是在学校指导下,学生所经历的全部经验,也就是学生学校的全部生活。笔者基于学生学习现状,提出构建'磁性物理'课程,并进行实践探索,把国家课程转化为教师的理解,转化为教师能操作的实践,并在此过程中促进师生共同成长。 展开更多
关键词 磁性物理校本化课程 实践探索
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南海前新生代残留盆地分布综合地球物理研究 被引量:18
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作者 胡卫剑 江为为 +2 位作者 郝天珧 徐亚 赵百民 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2011年第12期3315-3324,共10页
为了对南海海域的前新生代残留盆地分布有个整体而全面的认识,本文开展了南海残留盆地宏观分布的综合地球物理研究.通过岩石物性分析,综合重、磁、震等地球物理方法,利用正演与反演方法,分区计算并求取了南海的重力基底和磁性基底埋深,... 为了对南海海域的前新生代残留盆地分布有个整体而全面的认识,本文开展了南海残留盆地宏观分布的综合地球物理研究.通过岩石物性分析,综合重、磁、震等地球物理方法,利用正演与反演方法,分区计算并求取了南海的重力基底和磁性基底埋深,得到了中生界及前中生界残余厚度,给出了整个南海前新生代残留盆地的宏观格架与残余厚度分布特征并讨论了前新生代油气前景.研究结果表明南海东北部的东沙隆起和潮汕坳陷、台西南盆地和北港隆起、南部的礼乐滩地区等应具有较好的前新生代油气资源潜力. 展开更多
关键词 南海 前新生代残留盆地 重力基底 磁性基底 综合地球物理方法
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让物理课堂与学生“相吸”
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作者 王竞 《华夏教师》 2015年第5期57-57,共1页
关注物理课对学生的吸引力才能更好地引导学生参与到学习体验中来。在物理教学中,教师精心创设问题和物理情境,尊重学生,能让物理课充满吸力,学生在充满吸引力的物理学习中,才能更有效地提高物理素质和自主学力。
关键词 物理教学“磁性”问题 最近发展区 情境
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Stndy on Soil Magnetic Effect 被引量:5
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作者 YIYAN-LI LIUXIAO-YI 《Pedosphere》 SCIE CAS CSCD 1995年第3期215-220,共6页
A study on the effect of applied magnetic field was performed with six types of soils collected fromnortheastern China. Magnetic field was found to cause changes of soil physicc-chemical properties and soilenzyme acti... A study on the effect of applied magnetic field was performed with six types of soils collected fromnortheastern China. Magnetic field was found to cause changes of soil physicc-chemical properties and soilenzyme activities. An appropriate applied magnetic field could cut down soil zeta-potential, soil specificsurface, soil water potential and soil swelling capacity; raise the charge density on soil colloids and theactivities of invertase, hydrogen peroxidase and amylase in the soils; enhance soil aggregation and improvesoil structural status and soil water-releasing capability. 展开更多
关键词 enzyme activity soil magnetic effect soil physico-chemical properties
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Damping of Magnetorheological Elastomers 被引量:2
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作者 Lin Chen Xing-long Gong Wei-hua Li 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 北大核心 2008年第6期581-585,共5页
The damping property of magnetorheological (MR) elastomers is characterized by a modified dynamic mechanical-magnetic coupled analyzer. The influences of the external magnetic flux density, damping of the matrix, co... The damping property of magnetorheological (MR) elastomers is characterized by a modified dynamic mechanical-magnetic coupled analyzer. The influences of the external magnetic flux density, damping of the matrix, content of iron particles, dynamic strain, and driving frequency on the damping properties of MR elastomers were investigated experimentally. The experimental results indicate that the damping properties of MR elastomers greatly depend on the interfacial slipping between the inner particles and the matrix. Different from general composite materials, the interracial slipping in MR elastomers is affected by the external applied magnetic field. 展开更多
关键词 Magnetorheological elastomers Damping property Interfacial slipping
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Ferromagnetic MnSb Films Consisting of Nanorods and Nanoleaves
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作者 戴瑞烜 陈诺夫 +2 位作者 张兴旺 彭长涛 吴金良 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2007年第5期661-664,共4页
Ferromagnetic MnSb films were synthesized on Si wafers by physical vapor deposition. X-ray diffraction revealed that the films primarily consisted of MnSb alloy. Nanorods and nanoleaves were observed in the MnSb films... Ferromagnetic MnSb films were synthesized on Si wafers by physical vapor deposition. X-ray diffraction revealed that the films primarily consisted of MnSb alloy. Nanorods and nanoleaves were observed in the MnSb films by field-emission scanning electron microscopy. These nanorods had an average diameter of 20nm and a length of up to hundreds of nanometers. The nanoleaves had a width and thickness of about 100 and 20nm, respectively. Magnetic hysteresis loops were measured by an alternative gradient magnetometer, and the loops showed strong geometrical anisotropy. 展开更多
关键词 FERROMAGNETIC MNSB nanorods and nanoleaves physical vapor deposition
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Effect of Lattice Distortion on Charge Order in Manganites at Doping x=0.5 被引量:1
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作者 WANGHai-Long TIANGuang-Shan LINHai-Qing 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第1期179-186,共8页
In the present paper, we continue our investigation on the antiferromagneticorigin of the charge order observed in the halt-doped manganese. By introducing aSu-Schrieffer-Heeger (SSH) type of perturbation interaction ... In the present paper, we continue our investigation on the antiferromagneticorigin of the charge order observed in the halt-doped manganese. By introducing aSu-Schrieffer-Heeger (SSH) type of perturbation interaction to the double-exchange Hamiltonian, wecalculate again its ground-state phase diagram at Glling x = 0.5 by the unrestricted real-spaceHartree-Fock approximation method. We find that, as the SSH electron-phonon interaction increases,the charge order parameter decreases to zero rapidly but the CE-type antiferromagnetic order becomesmore stable. In other words, the charge order is much more fragile than the CE-type or theNeel-type antiferromagnetic orders under the electron-phonon perturbation. These results support theproposed theory in the recent publications that the charge order in these systems is induced by theantiferromagnetic correlations. 展开更多
关键词 MANGANITES charge ordered phases antiferromagnetic correlation
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Internal energy and specific antiferromagnetic heat in a ferromagnetic- double layers
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作者 姜伟 国安邦 《Chinese Physics B》 SCIE EI CAS CSCD 2007年第12期3832-3836,共5页
The internal energy and specific heat of a Heisenberg ferro- antiferromagnetic double-layer system are studied by using spin-wave theory and the retarded Green function method at low temperatures. Numerical results sh... The internal energy and specific heat of a Heisenberg ferro- antiferromagnetic double-layer system are studied by using spin-wave theory and the retarded Green function method at low temperatures. Numerical results show that the antiferromagnetic intralayer coupling J2 has an important influence on internal energy and specific heat for a four-sublattice system with antiferromagnetic (or ferrimagnetic) interlayer couplings. 展开更多
关键词 spin-wave theory ferromagnetic-antiferromagnetic double layers internal energy specific heat
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Self-magnetism and Persistent Photoconductivity
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作者 Majid Vaezzadeh WANG Quan +1 位作者 Mohammadreza Saeidi Araz Seeabi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第10期999-1002,共4页
Persistent photoconductivity has been investigated by various models, among which the Macroscopic Barrier model, Large-Lattice-Relaxation model, and Random Local Potential Fluctuations model are mostly well known. Alt... Persistent photoconductivity has been investigated by various models, among which the Macroscopic Barrier model, Large-Lattice-Relaxation model, and Random Local Potential Fluctuations model are mostly well known. Although the three well-known models have played important roles in describing the persistent photoconductivity, they are not the principal cause of persistent photoconductivity. In this paper a classical model originated from "selfmagnetism of electron gas" is proposed to illustrate the persistent photoconductivity phenomenon. This classical model is based on electron gas pulsation, which depends on the charge density. Different concentrations of current carriers create different frequencies in the system, and thus the system is sensitive to different wave lengths of incident light. Then the construction of different detectors can be possible for different wave lengths of incident light. 展开更多
关键词 self-magnetism persistent photoconductivity electron gas pulsation
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Quantum Theory for Interfacial Roughness and Angle Dependence of Giant Magnetoresistance in Magnetic Multilayers
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作者 TAOYong-Chun DONGZheng-Chan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2001年第3期355-359,共5页
The giant magnetoresistance (GMR) in magnetic multilayers with current in the plane of the layers is studied by using the quantum-statistical Green's function approach, in which the effects of the interfacial roug... The giant magnetoresistance (GMR) in magnetic multilayers with current in the plane of the layers is studied by using the quantum-statistical Green's function approach, in which the effects of the interfacial roughness and magnetization configuration on the GMR are included. It is shown that the maximal GMR first increases and then decreases with increasing interfacial roughness, exhibiting a peak at an optimum value of interfacial roughness. An approximately linear dependence of GMR on is obtained, where is the angle between magnetizations of the two successive ferromagnetic layers. Furthermore, the maximal GMR is found to increase with increasing the number of bilayers. 展开更多
关键词 giant magnetoresistance interfacial roughness angle dependence Green's function magnetic multilayers
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Nonlinear Temperature Dependence of Magnetization of Two-Band Superconductors Near Upper Critical Field
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作者 I.N. Askerzade 《Communications in Theoretical Physics》 SCIE CAS CSCD 2007年第5X期949-952,共4页
Temperature dependence of the magnetization M (T) of two-band superconductors is studied in the vicinity of upper critical field He2 by using a two-band Ginzburg-Landau (GL) theory. It is shown that magnetization ... Temperature dependence of the magnetization M (T) of two-band superconductors is studied in the vicinity of upper critical field He2 by using a two-band Ginzburg-Landau (GL) theory. It is shown that magnetization M(T) has a nonlinear character due to positive curvature of upper critical field Hc2(T) and temperature dependence of effective Ginzburg-Landau parameter Neff(T). The results are shown to be in qualitative agreement with experimental data for the superconducting magnesium diboride, MgB2. 展开更多
关键词 two-band superconductivity Ginzburg-Landau theory MAGNETIZATION
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Tuning Exchange Anisotropy of Exchange-Biased System
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作者 XU Yan HU Jing-Guo R.L. Stamps 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第7期253-256,共4页
Exchange anisotropy in FM/AFM bilayers has given a lot of static magnetization properties such as enhanced coercivity and magnetization loop shifts. These phenomena are primarily from the effective anisotropies introd... Exchange anisotropy in FM/AFM bilayers has given a lot of static magnetization properties such as enhanced coercivity and magnetization loop shifts. These phenomena are primarily from the effective anisotropies introduced into a ferromagnet by exchange coupling with a strongly anisotropic antiferromagnet. These effective anisotropies can also be used to explain the dynamic consequences of exchange-biased bilayers. In this article, the dynamic consequences such as exchange-induced susceptibility, exchange-induced permeability, and the corresponding domain wall characteristics in the exchange-biased structures of ferromagnet/antiferromagnetl/antiferromagnet2 are studied. The results show that the second antiferromagnetic layer can largely affect the dynamic consequences of exchange-blazed bilayers. Especially in the case of critical temperature, the effects become more obvious. Practically, the exchange anisotropy of biased bilayer system can be tuned by exchange coupling with the second antiferromagnetic layer. 展开更多
关键词 Idomain effects SUSCEPTIBILITY PERMEABILITY FM/AFM1/AFM2 trilayers
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Control of Beam Halo-Chaos by Fraction Power-Law Function in Hackle Periodic-Focusing Channel
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作者 YU Hai-Jun BAI Long +2 位作者 WENG Jia-Qiang LUO Xiao-Shu FANG Jin-Qing 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第12期1365-1368,共4页
The Kapchinsky Vladimirsky(K-V)beam through a hackle periodic-focusing magnetic field is studiedusing the particle-core model.The beam halo-chaos is found,and an idea of fraction power-law function controller ispropos... The Kapchinsky Vladimirsky(K-V)beam through a hackle periodic-focusing magnetic field is studiedusing the particle-core model.The beam halo-chaos is found,and an idea of fraction power-law function controller isproposed based on the mechanism of halo formation and the strategy of controlling halo-chaos.The method is appliedto the multi-particle simulation to control the halo.The numerical results show that the halo-chaos and its regenerationcan be eliminated effectively by using the fraction power-law function control method.At the same time,the radialparticle density is uniform at the beam's center as long as the control method and appropriate parameter are chosen. 展开更多
关键词 beam halo-chaos hackle periodic-focusing magnetic field fraction power-law function
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Synthesis of magnetically modified palygorskite composite for immobilization of Candida sp. 99–125 lipase via adsorption 被引量:6
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作者 Ya Li Jicheng Hu Pingfang Han 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第5期822-826,共5页
Magnetically modified palygorskite composites were synthesized with γ-Fe2O3 dispersing on the external surface of clay mineral. The magnetic clay was characterized with Fourier transform infrared, X-ray diffrac- tion... Magnetically modified palygorskite composites were synthesized with γ-Fe2O3 dispersing on the external surface of clay mineral. The magnetic clay was characterized with Fourier transform infrared, X-ray diffrac- tion, transmission electron microscopy, and vibrating sample magnetometer. Candida sp. 99-125 lipase was immobilized on magnetic palygorskite composites by physical adsorption with enzyme loading of 41.5 mg· g^-1 support and enzyme activity of 2631.6 U· (g support)^-1. The immobilized lipase exhibit better thermal and broader pH stability and excellent reusabilitV compared with free lipase. 展开更多
关键词 Magnetically modified palygorskite Immobilized lipase Adsorption Stability Reusability
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Muon g - 2 in the Littlest Higgs Model
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作者 Farshid Tabbakh LIU Jing-Jing MA Wen-Gan 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第5期894-900,共7页
In this paper the anomalous magnetic dipole moment ofmuon in the littlest Higgs (LH) model is studied at one-loop level. We discuss the dependence of the contributions on the global symmetry breaking scale f, mizing... In this paper the anomalous magnetic dipole moment ofmuon in the littlest Higgs (LH) model is studied at one-loop level. We discuss the dependence of the contributions on the global symmetry breaking scale f, mizing angles c` and , and the Higgs triplet vacuum expectation value v' in the electroweak precision data preferring ranges. We find that the LH model can give a relatively small, but non-negligible extra weak contribution to the muon anomalous magnetic moment and can reduce the deviation of △aμ from 2.6σ for the SM to 2.5σ for the LH model. 展开更多
关键词 Littlest Higgs model anomalous magnetic dipole moment of muon
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