作者： 饶益花;唐益群;刘应传;陈铀;丁风;...

期刊： 物理实验,2020年40(10):47-50 ISSN：1005-4642

作者机构： 南华大学数理学院;[黄新成; 丁风] 安徽省科大奥瑞科技有限公司;[刘应传; 饶益花; 唐益群; 陈铀] 南华大学

关键词： 快速电子;动量;动能;相对论关系;虚拟仿真;在线教学

摘要： 对开发的快速电子动量与动能相对论关系虚拟仿真实验进行了教学应用研究.设计了仿真实验教学过程,明确了实验教学目标;由测量数据得到了快速电子动量与动能的相对论关系曲线.利用网络技术虚拟仿真实验可大规模普及为常规在线教学实验.

语种： 中文

作者： 饶益花;管亮;唐益群;陈铀;黄新成;...

期刊： 物理实验,2020年40(01):30-34 ISSN：1005-4642

作者机构： 南华大学数理学院,湖南衡阳421001;安徽省科大奥瑞科技有限公司,安徽合肥230089;[饶益花; 管亮; 唐益群; 陈铀] 南华大学;[黄新成; 丁风] 安徽省科大奥瑞科技有限公司

关键词： 快速电子;动量;动能;相对论关系;虚拟仿真实验

摘要： 开发了快速电子动量与动能的相对论关系虚拟仿真实验,利用3D仿真、三维动画、HTML5、数学建模等技术构建了虚拟仿真实验仪器;利用组件开发技术构建虚拟实验场景和实验过程,直观显示快速粒子在磁场中的运动轨迹,使实验生动形象,提升了学习兴趣;可以利用网络技术大规模普及实验,节省实验成本,把"高危"实验变为安全普及型常规教学实验.

语种： 中文

作者： Raza, Ali;Lin Wenbin*;Chen Yanzheng;Zhang Yanting;Chattha, Hassan Tariq;...

期刊： Microwave and Optical Technology Letters,2020年62(7):2562-2568 ISSN：0895-2477

通讯作者： Lin Wenbin

作者机构： [Raza, Ali; Chen Yanzheng; Zhang Yanting; Lin Wenbin] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu, Peoples R China.;[Raza, Ali; Sharif, Abu Bakar] Govt Coll Univ Faisalabad, Dept Elect Engn, Faisalabad, Pakistan.;[Lin Wenbin] Univ South China, Sch Math & Phys, Hengyang, Peoples R China.;[Chattha, Hassan Tariq] Islamic Univ Madinah, Fac Engn, Dept Elect Engn, Al Madinah, Saudi Arabia.

通讯机构： [Lin Wenbin] U;Univ South China, Sch Math & Phys, Hengyang, Peoples R China.

关键词： Antenna grounds;Geological surveys;Geophysical prospecting;Microstrip antennas;Microwave antennas;Radar antennas;Slot antennas;Time domain analysis;Curved ground plane;Ground Penetrating Radar;Ground penetrating radar (GPR);Physical dimensions;Planar antennas;Resistively loaded antennas;Ta-pered-slot antennas;Wide-band;Ground penetrating radar systems

摘要： A planar slotted patch antenna is proposed for ground penetrating radar (GPR). The proposed antenna has a wide bandwidth ranging from 600 MHz to 4 GHz. Tapered slot feeding, curved ground plane, and slot loading are used for a wideband operation, whereas resistive loading is utilized for removal of notch band. Current loops made by slots are bifurcated with the use of 50 Ω resistors. The antenna is designed and optimized to achieve good performance, especially at lower frequencies while keeping the antenna's physical dimension relatively small. The time-domain analysis of the antenna is performed, and the comparative graph is added after analysis to validate its performance in the impulse-based radar. Furthermore, a sandbox test is conducted; the experimental results show the significance of the proposed antenna toward GPR application. © 2020 Wiley Periodicals, Inc.

语种： 英文

作者： Liao, Xinyuan*;Chen, Yuming

期刊： Advances in Difference Equations,2019年2019(1):1-10 ISSN：1687-1839

通讯作者： Liao, Xinyuan

作者机构： [Liao, Xinyuan] Univ South China, Sch Math & Phys, Hengyang, Peoples R China.;[Chen, Yuming] Wilfrid Laurier Univ, Dept Math, Waterloo, ON, Canada.

通讯机构： [Liao, Xinyuan] U;Univ South China, Sch Math & Phys, Hengyang, Peoples R China.

关键词： Asymptotic mean square stability;Stochastic discrete mutualism model;Linearized method;Lyapunov functional method

摘要： Under the assumption that stochastic white noise perturbations are directly proportional to the deviation of the state from the equilibrium states of a continuous mutualistic model, we use the Euler–Maruyama discretization method to obtain a two-species stochastic discrete mutualism model. For this stochastic model, we establish conditions on the asymptotic mean square stability of the positive equilibrium state and the almost sure asymptotic stability of the three boundary equilibrium states. The theoretical results are supported with numerical simulations. © 2019, The Author(s).

语种： 英文

作者： Raza, Ali;Lin, Wenbin*;Liu, Yunlin;Sharif, Abu Bakar;Chen, Yanzheng;...

期刊： Microwave and Optical Technology Letters,2019年61(4):1052-1057 ISSN：0895-2477

通讯作者： Lin, Wenbin

作者机构： [Liu, Yunlin; Raza, Ali; Lin, Wenbin; Chen, Yanzheng] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu, Sichuan, Peoples R China.;[Lin, Wenbin] Univ South China, Sch Math & Phys, Hengyang, Peoples R China.;[Sharif, Abu Bakar] Univ Elect Sci & Technol, Dept Microwave Engn, Chengdu, Sichuan, Peoples R China.;[Ma, Cunliang] Jiangxi Univ Sci & Technol, Sch Informat Engn, Ganzhou, Peoples R China.

通讯机构： [Lin, Wenbin] U;Univ South China, Sch Math & Phys, Hengyang, Peoples R China.

关键词： Antenna grounds;Geological surveys;Geophysical prospecting;Ground penetrating radar systems;Loop antennas;Magnetism;Monopole antennas;Radar antennas;Slot antennas;Time domain analysis;Ultra-wideband (UWB);Electrical trees;GPR applications;Ground Penetrating Radar;Ground planes;Low-frequency;Magnetic loops;Multiple applications;Planar antennas;Microwave antennas

摘要： A new planar antenna is proposed for multiple applications in ground-penetrating radar. The proposed antenna offers ultra-wide band characteristics ranging from 100 MHz to 6 GHz. The antenna composed of two elements: an electrical tree-shaped portion and a magnetic loop antenna, made by joining an electrical antenna with a ground plane via 50 Ohm resistor. The loop antenna portion provides a low-frequency operation without increasing physical size of the antenna. Proposed antenna has relatively small dimensions 20 × 22.5 cm 2 as compared with similar antennas covering the same bandwidth. Time domain analysis of this antenna is done to check its performance for applications in impulse-based radar systems. The antenna has been manufactured and experimental results are added to validate simulation results. © 2018 Wiley Periodicals, Inc.

语种： 英文

作者： Chen, Yanzheng;Lin, Wenbin*;Ma, Cunliang*;Liao, Cheng

期刊： Microwave and Optical Technology Letters,2018年60(12):2983-2988 ISSN：0895-2477

通讯作者： Lin, Wenbin;Ma, Cunliang

作者机构： [Lin, Wenbin; Liao, Cheng; Chen, Yanzheng] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu, Sichuan, Peoples R China.;[Lin, Wenbin] Univ South China, Sch Math & Phys, Hengyang, Peoples R China.;[Ma, Cunliang] Jiangxi Univ Sci & Technol, Sch Informat Engn, Ganzhou, Peoples R China.

通讯机构： [Lin, Wenbin] U;[Ma, Cunliang] J;Univ South China, Sch Math & Phys, Hengyang, Peoples R China.;Jiangxi Univ Sci & Technol, Sch Informat Engn, Ganzhou, Peoples R China.

关键词： broadband antenna;multi-dipole;unidirectional antenna

摘要： A novel wideband unidirectional multi-dipole antenna is proposed, which has an enhanced impedance bandwidth of about 68.1% for VSWR < 1.5 and a gain > 8 dBi, covering the frequency region from 1.54 to 3.13 GHz. A stable radiation pattern is obtained and the 3 dB beamwidth is 62 ± 4° at E-plane and 63 ± 4° at H-plane over the bandwidth. This model has been manufactured, and the experimental results are in good accordance with the simulated ones. © 2018 Wiley Periodicals, Inc.

语种： 英文

作者： Yin, L.;Yang, C.;Gong, X. Y.*;Lu, X. Q.;Cao, J. J.;...

期刊： AIP Advances,2018年8(5):055315 ISSN：2158-3226

通讯作者： Gong, X. Y.

作者机构： [Du, D.; Chen, Y.; Gong, X. Y.; Yin, L.] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[Chen, Y.; Cao, J. J.; Wu, Z. Y.; Yin, L.; Lu, X. Q.] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Yang, C.] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China.

通讯机构： [Gong, X. Y.] U;Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.

摘要： Control of the current profile is a crucial issue for improved confinement and the inhibition of instability in advanced tokamak operation. Using typical discharge data for the Experimental Advanced Superconducting Tokamak, numerical simulations of driven-current profile control in mode conversion current drive (MCCD) in the ion cyclotron range of frequencies were performed employing a full-wave method and Ehst-Karney efficiency formula. Results indicate that the driven current profile in MCCD can be effectively modified by shifting the mode conversion layer. The peak of the driven current can be located at an aimed position in the normalized minor radius range (-0.60≤r/a≤0) by changing the radiofrequency and the minority-ion concentration. The efficiency of the off-axis MCCD can reach 233 kA/MW through optimization, and the mode converted ion cyclotron wave plays an important role in such scenarios. The effects of electron temperature and plasma density on the driven current profile are also investigated. © 2018 Author(s).

语种： 英文

作者： 谢宝艺;余俊;龚学余;陈铀;余江妹

期刊： 核聚变与等离子体物理,2017年37(1):8-13 ISSN：0254-6086

作者机构： 南华大学数理学院,衡阳,421001;[龚学余] 南华大学数理学院,衡阳 421001;[龚学余] 南华大学核科学技术学院,衡阳 421001;[陈铀; 余江妹; 余俊; 谢宝艺] 南华大学

关键词： 环向转动;测地声模;低频模;声波分支;无碰撞阻尼

摘要： 采用回旋动理学方程推导得到了环向转动托卡马克等离子体中测地声模的色散关系,分析了环向转动对测地声模、低频模和声波分支的频率以及无碰撞阻尼率的影响。结果表明,测地声模的频率会随着环向转动马赫数而逐渐增大,而其无碰撞阻尼率则会随着环向转动马赫数而迅速减小。此外,低频模和声波分支的频率以及无碰撞阻尼率都会随着环向转动马赫数而逐渐减小,其中环向转动对声波分支的频率以及无碰撞阻尼率的影响非常小,基本上可以忽略。

语种： 中文

作者： Yin, L.;Yang, C.;Gong, X. Y.*;Lu, X. Q.;Du, D.;...

期刊： PHYSICS OF PLASMAS,2017年24(10):102502 ISSN：1070-664X

通讯作者： Gong, X. Y.

作者机构： [Du, D.; Chen, Y.; Yin, L.] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[Chen, Y.; Gong, X. Y.; Yin, L.; Lu, X. Q.] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Yang, C.] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China.

通讯机构： [Gong, X. Y.] U;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

关键词： plasma radiofrequency heating;plasma toroidal confinement;Tokamak devices

摘要： Fast wave in the ion-cyclotron resonance frequency (ICRF) range is a promising candidate for non-inductive current drive (CD), which is essential for long pulse and high performance operation of tokamaks. A numerical study on the ICRF fast wave current drive (FWCD) and mode-conversion current drive (MCCD) in the Experimental Advanced Superconducting Tokamak (EAST) is carried out by means of the coupled full wave and Ehst-Karney parameterization methods. The results show that FWCD efficiency is notable in two frequency regimes, i.e., integral >= 85 MHz and integral = 50-65 MHz, where ion cyclotron absorption is effectively avoided, and the maximum on-axis driven current per unit power can reach 120 kA/MW. The sensitivity of the CD efficiency to the minority ion concentration is confirmed, owing to fast wave mode conversion, and the peak MCCD efficiency is reached for 22% minority-ion concentration. The effects of the wave-launch position and the toroidal wavenumber on the efficiency of current drive are also investigated. Published by AIP Publishing.

语种： 英文

作者： Xie, Baoyi;Guo, Wenfeng*;Gong, Xueyu;Yu, Jun;Chen, You;...

期刊： Nuclear Fusion,2016年56(12):124001 ISSN：0029-5515

通讯作者： Guo, Wenfeng

作者机构： [Chen, You; Xie, Baoyi; Gong, Xueyu; Yu, Jun] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[Guo, Wenfeng] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China.;[Gong, Xueyu; Cao, Jinjia] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

通讯机构： [Guo, Wenfeng] C;Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China.

关键词： Damping;Electrons;Geodesy;Magnetoplasma;Plasma theory;Rotation;Safety factor;Tokamak devices;Collisionless;Dispersion relations;Electron dynamics;Electron response;Frequency up shift;Geodesic acoustic modes;Number of electrons;Toroidal rotation;Collisionless plasmas

摘要： Collisionless damping of the geodesic acoustic mode due to electron dynamics in rotating tokamak plasmas is investigated. A dispersion relation of the geodesic acoustic mode with a non-adiabatic electron response in a rotating tokamak is derived and solved both analytically and numerically. It is found that the collisionless damping of the geodesic acoustic mode, due to electron dynamics, significantly increases with the increasing toroidal rotation, especially in the large safety factor regime. The rotation-induced frequency up-shift of the geodesic acoustic mode increases the resonant velocity, which enables a larger number of electrons to resonate with the geodesic acoustic mode. The significant increase of the number of the resonant electrons significantly enhances the collisionless damping of the geodesic acoustic mode. The result indicates that in rotating tokamak plasmas a more complete picture of the geodesic acoustic mode should include the electron dynamics. © 2016 IAEA, Vienna.

语种： 英文

作者： 谢宝艺;余俊;龚学余;陈铀;余江妹

期刊： 核聚变与等离子体物理,2016年36(3):208-212 ISSN：0254-6086

作者机构： 南华大学数理学院,衡阳,421001;[龚学余] 南华大学数理学院，衡阳 421001;南华大学核科学技术学院，衡阳 421001;[龚学余] 南华大学核科学技术学院，衡阳 421001;[陈铀; 余江妹; 余俊; 谢宝艺] 南华大学

关键词： 环向转动;等熵平衡;测地声模;低频带状流;声波

摘要： 采用流体模型理论推导了等熵平衡条件下环向转动托卡马克等离子体中带状流的色散关系。从理论上分析了环向转动对测地声模、低频带状流和声波的频率、压力和密度扰动量的影响。结果表明,环向转动对低频带状流的频率没有影响,但会使测地声模的频率逐渐增大。此外,存在环向转动时,低频带状流会具有驻波形式的压力和密度扰动量,且测地声模和声波可以沿着极向传播。而且还发现,等熵平衡可以看成是等温平衡的一种特殊情况。

语种： 中文

作者： Gong, Xueyu;Xie, Baoyi;Guo, Wenfeng;Chen, You;Yu, Jiangmei;...

期刊： PHYSICS OF PLASMAS,2016年23(3):032503 ISSN：1070-664X

通讯作者： Yu, Jun

作者机构： [Gong, Xueyu] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Chen, You; Yu, Jiangmei; Xie, Baoyi; Yu, Jun] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[Guo, Wenfeng] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China.

通讯机构： [Yu, Jun] U;Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.

关键词： dispersion relations;Mach number;plasma flow;plasma toroidal confinement;Tokamak devices

摘要： With the dispersion relation derived for the geodesic acoustic mode in toroidally rotating tokamak plasmas using the fluid model, the effect of the toroidal rotation on the collisional viscous damping of the geodesic acoustic mode is investigated. It is found that the collisional viscous damping of the geodesic acoustic mode has weak increase with respect to the toroidal Mach number. &copy;2016 AIP Publishing LLC.

语种： 英文

作者： Xie, Baoyi;Yu, Jun;Gong, Xueyu*;Guo, Wenfeng;Chen, You

期刊： PHYSICS OF PLASMAS,2016年23(3):032504 ISSN：1070-664X

通讯作者： Gong, Xueyu

作者机构： [Chen, You; Xie, Baoyi; Gong, Xueyu; Yu, Jun] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;[Gong, Xueyu] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Guo, Wenfeng] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China.

通讯机构： [Gong, Xueyu] U;Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China.;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.

关键词： damping;plasma collision processes;plasma flow;plasma kinetic theory;plasma toroidal confinement;Tokamak devices

摘要： The collisional damping of the geodesic acoustic mode (GAM) is analytically investigated in toroidally rotating tokamaks by using the gyrokinetic equation. It is found that the toroidal rotation could decrease the collisional damping of the GAM in the small safety factor region and increase the collisional damping of the GAM in the large safety factor region at low ion collision rate;while at high ion collision rate, the toroidal rotation will increase the collisional damping of the GAM with arbitrary safety factor. Furthermore, the change quantity of collisional damping rate of the GAM due to the toroidal rotation at high collision rate is larger than that at low collision rate. &copy;2016 AIP Publishing LLC.

语种： 英文

作者： Yu, Jun*;Gong, Xueyu;Chen, You

期刊： Nuclear Fusion,2015年55(2):023015 ISSN：0029-5515

通讯作者： Yu, Jun

作者机构： [Chen, You; Gong, Xueyu; Yu, Jun] Univ South China, Sch Math & Phys, Hengyang 421001, Hunan, Peoples R China.;[Gong, Xueyu] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.

通讯机构： [Yu, Jun] U;Univ South China, Sch Math & Phys, Hengyang 421001, Hunan, Peoples R China.

关键词： Dispersion (waves);Dispersions;Growth rate;Plasma confinement;Plasma theory;Plasma waves;Rotation;Tokamak devices;Turbulence;Finite amplitude;Geodesic acoustic modes;Nonlinear dispersion relation;Nonlinear growth rates;Nonlinear terms;Tokamak plasmas;Toroidal rotation;Zonal flows;Magnetoplasma

摘要： With the nonlinear dispersion relation derived, excitation of low frequency zonal flow by drift waves is examined in tokamak plasmas with toroidal rotation. It is shown that the growth rate of the low frequency zonal flow is decreased by the frequency shift of the geodesic acoustic mode and is increased by the additional nonlinear terms with toroidal rotation velocity. If the amplitude of the pump drift wave is greater than the threshold value, which is the function of the Mach number of the toroidal rotation, the toroidal rotation increases the nonlinear growth rate, otherwise, it decreases the nonlinear growth rate. There is always a finite nonlinear growth rate of the low frequency zonal flow if only there is a finite amplitude of the pump wave in tokamak plasmas with a finite velocity of the toroidal rotation. © 2015 IAEA.

语种： 英文

作者： Hong, J.*;Chen, Y.;Lei, J.;Song, S-M.;Yan, Y-Z.;...

期刊： Lasers in Engineering,2015年30(3-4):203-209 ISSN：0898-1507

通讯作者： Hong, J.

作者机构： [Hong, J.; Lei, J.; Song, S-M.; Yan, Y-Z.; Li, Z-L.] Hunan Inst Technol, Dept Elect & Informat Engn, Hengyang 421002, Hunan, Peoples R China.;[Chen, Y.] Univ South China, Sch Math & Phys, Hengyang 421001, Hunan, Peoples R China.

通讯机构： [Hong, J.] H;Hunan Inst Technol, Dept Elect & Informat Engn, Hengyang 421002, Hunan, Peoples R China.

关键词： Laser applications;Lasers;DC noise;Intensity modulation and direct detections;Microwave photonic links;Physical phenomena;Relative intensity noise;Systematic noise;Phase noise

摘要： A new method for measuring the relative intensity noise (RIN) of a laser is proposed and verified by experiment in this paper. As an important module of microwave-photonic link (MPL), the RIN of a laser has contribution to systematic noises of MPL in the type of the intensity modulation and direct detection (IM-DD), so the phase noise of transmitted carrier would increase. This physical phenomenon is used to measure RIN of a laser and this method avoids the influence of near-dc noise and is unrestricted by the power of the laser compared with previous methods. © 2015 Old City Publishing, Inc.

语种： 英文

作者： 贾鹏;陈铀;彭志华

期刊： 科技资讯,2014年(30):196-196 ISSN：1672-3791

作者机构： 南华大学数理学院 湖南衡阳 421001;[彭志华; 陈铀; 贾鹏] 南华大学

关键词： 大学物理教学;专业教育;结合

摘要： 结合大学物理教学现状,从专业思想教育、教学内容及教学方法方面同专业结合的角度来进行高校大学物理教学与专业教育结合的教学改革探讨,为当前大学物理的教学提供了新的思路。

语种： 中文

作者： 胡苹;尹岚;陈铀;李树玮

期刊： 南华大学学报(自然科学版),2014年(3):76-81 ISSN：1673-0062

作者机构： 南华大学 数理学院,湖南 衡阳,421001;中山大学 物理科学与工程技术学院,广东 广州,510275;[李树玮] 中山大学;[尹岚; 胡苹; 陈铀] 南华大学

关键词： 分子束外延;双极阻变开关;非易失性

摘要： 利用等离子体辅助的分子束外延设备在SrTiO3掺Nb(Nb：STO)的衬底上制备了双层的Cu2O/ CuO 薄膜，经过测量其电流电压特性，发现Pt/ Cu2O/ CuO/ Nb：STO 器件的阻变存储特性非常显著，而且可重复程度高，适合多次数据写入与擦除，有望应用于信息存储领域。

语种： 中文

作者： 尹岚;张睿智;郭萍;陈铀

期刊： 物理通报,2014年(8):19-21 ISSN：0509-4038

作者机构： 南华大学数理学院 湖南 衡阳 421001;湖南工学院计算机学院 湖南 衡阳 421002;[张睿智] 湖南工学院;[尹岚; 陈铀; 郭萍] 南华大学

关键词： 大学物理;网络化;课程建设;网络教学平台

摘要： 以南华大学数理学院“大学物理”网络课程的建设为蓝本，详细介绍了数字化网络教学体系的建设和实现．该体系完全实现了学生网络课程的无纸化学习、在线答疑、师生互动、习题下载、在线观看教学录像等十几项网络教学功能，在当下信息化社会迅速发展的今天，为各高校相关的课程建设起到参考和借鉴作用．

语种： 中文

作者： 尹岚;陈铀;郭萍

期刊： 数理医药学杂志,2014年(2):138-140 ISSN：1004-4337

作者机构： 南华大学数理学院 衡阳421001;[尹岚; 陈铀; 郭萍] 南华大学

关键词： β-粒子源;内照射;吸收剂量

摘要： 研究采用β-粒子源进行内照射治疗时，放射源的不同分布状态对肿瘤的吸收剂量分布的影响，比较β-粒子源在肿瘤区域以点源状态分布和均匀状态分布状台下肿瘤的吸收放射剂量分布情况，得到β-粒子源内照射治疗肿瘤选用放射源分布状态的最佳方案，其结果对β-粒子源内照射治疗的临床应用具有指导意义。

语种： 中文

作者： 胡苹;龚学余;尹岚;陈铀;彭志华;...

期刊： 科技创新导报,2014年(17):156-156 ISSN：1674-098X

作者机构： 南华大学数理学院 湖南衡阳 421001;[龚学余; 彭志华; 尹岚; 胡苹; 陈铀; 郭萍] 南华大学

关键词： 医学留学生;医学物理;教学质量;学习态度

摘要： 该文结合本校临床医学专业留学生教学方面存在的问题和不足，探讨医用物理教学在留学生教育方面的改革和尝试，以促进和提高教学质量，提升学生的学习热情。

语种： 中文