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| 1 | Temperature enhancement induced by ionosphere heating in low altitude region显示文摘电子温度近似等于离子温度的假设不在在低电离层区域加热的高频率(HF ) 期间是合理的。因此,使用理论公式支离破碎与 collisional 血浆散布系列,支离破碎散布数据在电离层在 91.7 km 高度加热期间被分析在 2006 年 8 月 15 日。电子温度的改进被获得,并且增长百分比分别地在 10:22 和 10:30 的通用时间直到 37% 和 46% 。由使用一样的初始化值,加热进程的电离层被欧姆的理论模仿,试验性的结果与模拟基本上一致。 | Bin Xu Jian Wu Zhensen Wu Jun Wu Haiqin Che Yubo Yan Kun Xue | 2008 | Progress in Natural Science:Materials International2008，18，11： | 7 |
| 2 | Incoherent scatter spectra from plasma of a 13-moment approximation distribution function显示文摘The function and physical mechanism of heat flow and the viscous stress in the velocity distribution function expanded by Maxwellian distribution are presented. With the introduction of effective temperature Tf, incoherent scatter spectra from plasma for electromagnetic wave in arbitrary line of sight are given. The effect of asymmetry and anisotropy provided by heat flow and the viscous stress on power spectra is discussed. Radar spectra are calculated for different cases of electric field, direction, collision frequency and temperature. The effect of heat flow and the viscous stress on inversion results is analyzed. With a large electric field, the character of non-Maxwellian must be considered. | XU Bin XUE Kun WU Jian WU ZhenSen | 2008 | Science China(Technological Sciences)2008，51，5： | 4 |
| 3 | Abnormal perturbations in the ionospheric F2 region before Wenchuan earthquake on 12 May 2008显示文摘On 12 May 2008 at 14:28 BJT, a great earthquake (M=8.0) occurred in Wenchuan (31.00°N, 103.40°E), China. The hourly foF2 from 5 to 12 May have been analyzed over four ionospheric observatories: Kunming (25.00°N, 102.70°E), Chongqing (29.50°N, 106.40°E), Lhasa (29.63°N, 91.17°E), and Lanzhou (36.07°N, 103.87°E). The results show that foF2 were notably abnormal from upper bound (the maximum abnormality up to 65% at 17:00 BJT) and lasted about 3 h on 9 May over Chongqing station. Moreover, there were obvious perturbations of foF2 on the same day over other stations except Lhasa. Taking into account that the solar activity and geomagnetic activity were very quiet during this period, we can conclude that the observed positive ionospheric perturbations were likely associated with the imminent earthquake. | Xu Tong Hu YanLi Wu Jian Wu ZhenSen Suo YuCheng Feng Jian Huang ChaoJun | 2010 | Science China Earth Sciences2010，53，11： | 4 |
| 4 | Electromagnetic Scattering from One-Dimension Fractal Surface显示文摘In this paper,the surfaces are modeled by multiscaled band-limited continuous fractal function and fractional Brownian motion function.The relationship between the scattering behavior and geometrical characteristics of the fractal surface is analysed in detail based on the perturbation solution and Kirchhoff approximation.Finally,some discussions are given about scattering from fractal surface. | GUO Lixin WU Zhensen | 1994 | Chinese Physics Letters1994，11，5： | 3 |
| 5 | Incoherent scatter spectra due to HF heating in the low ionosphere region显示文摘The electron velocity distribution function and the incoherent scatter spectra during ionospheric heating in low ionosphere region are presented with consideration of the elastic collision between electrons and neural particles and the excitation of rotation energy level. The effects of pump frequency and electric fields on the spectra are discussed. With the increase of electric field, the non-Maxwellian feature is enhanced, and with the increase of heating frequency, the non-Maxwellian feature is weak- ened. The non-Maxwellian factor will bring a large error in ionosphere parameters, which must be con- sidered in the inversion. | XU Bin WU ZhenSen WU Jian XUE Kun | 2009 | Science China(Technological Sciences)2009，52，4： | 2 |
| 6 | Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions显示文摘Using high temporal resolution optical data obtained from three-wavelength all-sky imagers at Chinese Yellow River Station in the Arctic, together with the EISCAT Svalbard radar (ESR) and SuperDARN radars, we investigated the dayside poleward moving auroral forms (PMAFs) and the associated plasma features in the polar ionosphere under different interplanetary magnetic field (IMF) conditions, between 0900 and 1010 UT on 22 December 2003. Simultaneous optical and ESR observations revealed that all PMAFs were clearly associated with pulsed particle precipitations. During northward IMF, particles can precipitate into lower altitudes and reach the ionospheric E-region, and there is a reverse convection cell associated with these PMAFs. This cell is one of the typical signatures of the dayside high-latitude (lobe) reconnection in the polar ionosphere. These results indicate that the PMAFs were associated with the high-latitude reconnection. During southward IMF, the PMAFs show larger latitudinal motion, indicating a longer mean lifetime, and the associated ionospheric features indicate that the PMAFs were generated by the dayside low-latitude reconnection. | XING Zanyang YANG Huigen HAN Desheng WU Zhensen LIU Junming HU Zejun ZHANG Qinghe LIU Yonghua ZHANG Beichen HU Hongqiao | 2012 | Advances in Polar Science2012，23，4： | 2 |
| 7 | Dayside poleward moving auroral forms and ionospheric convection under stable interplanetary magnetic field (IMF) conditions显示文摘Using high temporal resolution optical data obtained from three-wavelength all-sky imagers over six winters continuously at Yellow River Station (78.92°N,11.93°E) in Arctic,we statistically investigated the dependence of location of poleward moving auroral forms (PMAFs) on the interplanetary magnetic field (IMF) B z and B y components as a function of MLT and MLAT under stable IMF conditions.It is found that more PMAFs occurred in lower latitude for Bz<0 and there was less evident IMF B y-related prenoon-postnoon asymmetry for Bz<0 than for Bz>0.We found that the PMAFs were distributed over a wide range of MLT when Bz<0,which indicates that the reconnection X-line might spread like an 'S' shape.However,during northward IMF,PMAFs were observed predominantly prenoon for IMF By>0 and postnoon for IMF By<0 associating with the effect of the high-latitude reconnection,which is largely consistent with the theoretical model of the convection flow. | XING ZanYang YANG HuiGen HAN DeSheng WU ZhenSen LIU JunMing HU ZeJun ZHANG QingHe HU HongQiao LIU YongHua | 2013 | Science China(Technological Sciences)2013，56，4： | 2 |
| 8 | Bi-static scattering by arbitrarily shaped objects with rough surface at optical and infrared frequencies显示文摘 | Wu Zhensen Cui Suomin | 1992 | Int J infr Mill Waves1992，13，4： | 1 |
| 9 | Statistical temporal behavior of pulse wave propagation through continuous random media显示文摘 | Zhengwen Xu Jian Wu Zhensen Wu | 2003 | Waves Random Media2003，13，1： | 1 |
| 10 | The Fast EPILE Combined with FBM for Electromagnetic Scattering from Dielectric Targets above and below the Dielectric Rough Surface显示文摘 | Liang Yu Guo Lixin Wu Zhensen | 2011 | IEEE Transactions on Geoscience and Re- mote Sensing2011，4910，： | 1 |
| 11 | Modeling low elevation GPS signal propagation in maritime atmospheric ducts 显示文摘 | ZHANG Jinpeng WU Zhensen WANG Bo | 2012 | Journal of Atmos- pheric and Solar-Terrestrial Physics2012，，80： | 1 |
| 12 | Improved composite surface model for two-dimensional ocean surface scattering显示文摘 | WU Zhensen ZHANG Yandong GUO Lixin | 2000 | Remote Sensing of the Ocean and Sea Ice2000，4172，： | 1 |
| 13 | Light scattering and visibility condition of spatial objects 显示文摘 | WU Zhensen LI Daoyong ZHANG Yanqun | 2004 | International Journal of Infrared and Millimeter Waves2004，25，8： | 1 |
| 14 | Influence of highspeed dielectric spherical particles movement on its scattering characteristics 显示文摘 | WANG Mingjun WU Zhensen LI Yingle | 2007 | Chinese Optics Letters2007，5，4： | 1 |
| 15 | Scattering of solar and atmospheric background radiation from a target 显示文摘 | WU Zhensen LIU Anan | 2002 | International Journal of Infrared and Millimeter Waves2002，23，6： | 1 |
| 16 | A study of optical scintillation in the atmospheric turbulence by using modification modification of the Ryzov method显示文摘 | GUO Lixin LUO Zhimin WU Zhensen | 2001 | China of Electronic2001，10，3： | 1 |
| 17 | Fractal model and electromagneticscattering from time-varying sea surface 显示文摘 | Guo Lixin Wu Zhensen | 2000 | ElectronicsLetters2000，36，21： | 1 |
| 18 | Study on electromagnetic backscattering and Doppler spectrum of a moving spherical target above time-varying sea surface显示文摘The surface electric current of the sea surface and the first-order scattering field from the spherical target were obtained by employing Physical Optics method and Mie theory,respectively. The backscattering field of the time-evolving sea surface was calculated by using Kirchhoff Approximation. Meanwhile,by taking the ad-vantage of a newly developed technique that utilizes the reciprocity theorem,the difficulty in formulating the secondary coupling scattering fields from the spherical target above the sea surface was reduced. The dependence of the secondary cou-pling backscattering field on the size and the position of the spherical target was discussed,and the characteristic of the Doppler spectrum of the composite back-scattering field with different incident angles was analyzed in detail. | GUO LiXin WANG YunHua WU ZhenSen | 2008 | Science China(Physics,Mechanics & Astronomy)2008，51，3： | 1 |
| 19 | Monte carlo simulation for millimeter wave propagation and scattering in rain medium显示文摘 | Yan Yi and Chen Lihong | 1992 | International Journal of Infrared and Millimeter Waves1992，13，7： | 1 |
| 20 | Monte Carlo simulation for millimeter wave propagation and scattering in rain medium显示文摘 | Wu Zhensen Yan Yi Chen Lihong | 1992 | International Journal of Infrared and Millimeter Waves1992，，7： | 1 |
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