|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Dynamic variation and the fast acceleration of particles in Earth's radiation belt显示文摘We have quantitatively investigated the radiation belt's dynamic variations of 1.5-6.0 MeV electrons during 54 CME (coronal mass ejection)-driven storms from 1993 to 2003 and 26 CIR (corotating interaction region)-driven recurrent storms in 1995 by utilizing case and statistical studies based on the data from the SAMPEX satellite. It is found that the boundaries determined by fitting an exponential to the flux as a function of L shell obtained in this study agree with the observed outer and inner boundaries of the outer radiation belt. Furthermore, we have constructed the Radiation Belt Content (RBC) index by integrating the number density of electrons between those inner and outer boundaries. According to the ratio of the maximum RBC index during the recovery phase to the pre-storm average RBC index, we conclude that CME-driven storms produce more relativistic electrons than CIR-driven storms in the entire outer radiation belt, although the relativistic electron fluxes during CIR-related storms are much higher than those during CME-related storms at geosynchronous orbit. The physical radiation belt model STEERB is based on the three-dimensional Fokker-Planck equation and includes the physical processes of local wave-particle interactions, radial diffusion, and adiabatic transport. Due to the limitation of numerical schemes, formal radiation belt models do not include the cross diffusion term of local wave-particle interactions. The numerical experiments of STEERB have shown that the energetic electron fluxes can be overestimated by a factor of 5 or even several orders (depending on the pitch angle) if the cross diffusion term is ignored. This implies that the cross diffusion term is indispensable for the evaluation of radiation belt electron fluxes. Formal radiation belt models often adopt dipole magnetic field; the time varying Hilmer-Voigt geomagnetic field was adopted by the STEERB model, which self-consistently included the adiabatic transport process. The test simulations clearly indicate that the adiabatic process can significantly affect the evolution of radiation belt electrons. The interactions between interplanetary shocks and magnetosphere can excite ULF waves in the inner magnetosphere; the excited polodial mode ULF wave can cause the fast acceleration of 'killer electrons'. The acceleration mechanism of energetic electrons by poloidal and toroidal mode ULF wave is different at different L shells. The acceleration of energetic electrons by the toroidal mode ULF waves becomes important in the region with a larger L shell (the outer magnetosphere); in smaller L shell regions (the inner magnetosphere), the poloidal mode ULF becomes responsible for the acceleration of energetic electrons. | ZONG QiuGang YUAN ChongJing WANG YongFu SU ZhenPeng | 2013 | Science China Earth Sciences2013，56，7： | 5 |
| 2 | Strong convergence of modified implict iteration process for common fixed points of nonexpansive mappings显示文摘 | Su Yongfu | 2007 | Fixed Point Theory and Applications2007，，94： | 1 |
| 3 | Strong Convergence Theorems for Relatively Nonexpansive Mappings in a Banach Space 显示文摘 | QIN Xiaolong SU Yongfu | 2007 | Nonlinear Anal2007，67，6： | 1 |
| 4 | Approximating fixed points of non-self asymptotically nonexpansive mappings in Banach space显示文摘 | SU Yongfu QIN Xiaolong | | 0，，： | 1 |
| 5 | An iterative method of solution for equilibrium and optimization problems显示文摘 | Su Yongfu Shang Meijuan Qin Xiaolong | 2008 | Nonlinear Anal2008，69，8： | 1 |
| 6 | General iteration algorithm and convergence rate optimal model for common fixed points of nonexpansive mappings显示文摘 | Su Yongfu Qin Xiaolong | 2007 | Applied Mathematics and Computation2007，186，： | 1 |
| 7 | Strong Convergence of Monotone Hybrid Algorithm for Quasi-Nonexpansive Mappings显示文摘 | YONGFU SU DONGXING WANG MEIJUAN SHANG | 2007 | Journal of Math Analysis2007，，： | 1 |
| 8 | Strong convergence theorems for relatively nonexpansive mappings in a Banach space显示文摘 | QIN Xiaolong SU Yongfu | 2007 | NonlAnal2007，67，： | 1 |
| 9 | New monotone hybrid algorithm for hemi-relatively nonexpansive mappings and maximal monotone operators 显示文摘 | Yongfu Su Mengqin Li Hong Zhang | 2011 | Applied Mathematics and Computation2011，217，： | 1 |
| 10 | STRONG CONVERGENCE OF MONOTONE HYBRID METHOD FOR FIXED POINT ITERATION PROCESSES显示文摘K。Nakajo 和 W。在 2003 的 Takahashi 由在数学编程使用混合方法在 Hilbert 空格为单调操作符的零个点为非广泛的地图砰,非广泛的半组,和近似的点算法证明了强壮的集中定理。这篇论文的目的是修改 K 的混合重复方法。Nakajo 和 W。通过单调混血儿方法的 Takahashi,并且证明集中定理强壮。单调混血儿方法的重复过程的集中率比 K 的混合方法的重复过程的快。Nakajo 和 W。Takahashi。在在这篇文章的证明, Cauchy 顺序方法被用来避免 demiclosedness 原则和 Opial 的条件的使用。 | Yongfu SU Xiaolong QIN | 2008 | Journal of Systems Science & Complexity2008，21，3： | 1 |
| 11 | Strong convergence of the composite Halpem iteration显示文摘 | Qin Xiaolong Su Yongfu Shang Meijuan | 2008 | J Math Anal Appl2008，339，： | 1 |
| 12 | On the probabilistic structure spaces显示文摘 | Su Yongfu | 2002 | Stochastic Analtsis and Applications2002，2，1： | 1 |
| 13 | Composite implicit iteration process for common fixed points of a finite family of strictly pseudoeontracive maps显示文摘 | Yongfu Su Suhong Li | 2006 | J Math Anal Appl2006，320，： | 1 |
| 14 | Strong convergence of the composite Halpem iteration 显示文摘 | Qin Xiaolong Su Yongfu Shang Meijuan | 2008 | J Math Anal Appl2008，339，2： | 1 |
| 15 | Converting intercalation-type cathode in spent lithium-ion batteries into conversion-type cathode显示文摘The widespread applications of lithium-ion batteries(LIBs)generate tons of spent LIBs.Therefore,recycling LIBs is of paramount importance in protecting the environment and saving the resources.Current commercialized LIBs mostly adopt layered oxides such as LiCoO_(2)(LCO)or LiNi_(x)Co_(y)Mn_(1-x-y)O_(2)(NMC)as the cathode materials.Converting the intercalation-type spent oxides into conversion-type cathodes(such as metal fluorides(MFs))offers a valid recycling strategy and provides substantially improved energy densities for LIBs.Herein,two typical Co-based cathodes,LCO and LiNi_(0.6)Co_(0.2)Mn_(0.2)O_(2)(NMC622),in spent LIBs were successfully converted to CoF_(2) and(Ni_(x)Co_(y)Mn_(z))F_(2) cathodes by a reduction and fluorination technique.The as converted CoF_(2) and(Ni_(x)Co_(y)Mn_(z))F_(2) delivered cell energy densities of 650 and 700 Wh/kg,respectively.Advanced atomic-level electron microscopy revealed that the used LCO and NMC622 were converted to highly phase pure Co metal and Ni_(0.6)Co_(0.2)Mn_(0.2) alloys in the used graphite-assisted reduction roasting,simultaneously producing the important product of Li_(2)CO_(3) using only environment friendly solvent.Our study provided a versatile strategy to convert the intercalation-type Co-based cathode in the spent LIBs into conversion-type MFs cathodes,which offers a new avenue to recycle the spent LIBs and substantially increase the energy densities of next generation LIBs. | Dingding Zhu Yong Su Jingzhao Chen Xiangze Ou Xuedong Zhang Wen Xie Yuyan Zhou Yunna Guo Qiushi Dai Peng Jia Jitong Yan Lin Geng Baiyu Guo Liqiang Zhang Yongfu Tang Qiao Huang Jianyu Huang | 2024 | Nano Research2024，17，5： | 0 |
| 16 | Revealing alkali metal ions transport mechanism in the atomic channels of Au@a-MnO_(2)显示文摘Understanding alkali metal ions’(e.g.,Li^(+)/Na^(+)/K^(+))transport mechanism is challenging but critical to improving the performance of alkali metal batteries.Herein using a-MnO_(2)nanowires as cathodes,the transport kinetics of Li^(+)/Na^(+)/K^(+)in the 2×2 channels of a-MnO_(2)with a growth direction of[001]is revealed.We show that ion radius plays a decisive role in determining the ion transport and electrochemistry.Regardless of the ion radii,Li^(+)/Na^(+)/K^(+)can all go through the 2×2 channels of a-MnO_(2),generating large stress and causing channel merging or opening.However,smaller ions such as Li^(+)and Na^(+)cannot only transport along the[001]direction but also migrate along the<110>direction to the nanowire surface;for large ion such as K^(+),diffusion along the<110>direction is prohibited.The different ion transport behavior has grand consequences in the electrochemistry of metal oxygen batteries(MOBs).For Li-O_(2)battery,Li^(+)transports uniformly to the nanowire surface,forming a uniform layer of oxide;Na^(+)also transports to the nanowire surface but may be clogged locally due to its larger radius,therefore sporadic pearl-like oxides form on the nanowire surface;K^(+)cannot transport to the nanowire surface due to its large radius,instead,it breaks the nanowire locally,causing local deposition of potassium oxides.The study provides atomic scale understanding of the alkali metal ion transport mechanism which may be harnessed to improve the performance of MOBs. | Jingzhao Chen Yong Su Hongjun Ye Yushu Tang Jitong Yan Zhiying Gao Dingding Zhu Jingming Yao Xuedong Zhang Tingting Yang Baiyu Guo Hui Li Qiushi Dai Yali Liang Jun Ma Bo Wang Haiming Sun Qiunan Liu Jing Wang Congcong Du Liqiang Zhang Yongfu Tang Jianyu Huang | 2023 | Journal of Energy Chemistry2023，，7： | 0 |
| 17 | THREE-STEP ITERATIONS FOR NONEXPANSIVE MAPPINGS AND INVERSE-STRONGLY MONOTONE MAPPINGS显示文摘This paper introduces a three-step iteration for finding a common element of the set of fixedpoints of a nonexpansive mapping and the set of solutions of the variational inequality for an inverse-strongly monotone mapping by viscosity approximation methods in a Hilbert space.The authors showthat the iterative sequence converges strongly to a common element of the two sets,which solves somevariational inequality.Subsequently,the authors consider the problem of finding a common fixed pointof a nonexpansive mapping and a strictly pseudo-contractive mapping and the problem of finding acommon element of the set of fixed points of a nonexpansive mapping and the set of zeros of an inverse-strongly monotone mapping.The results obtained in this paper extend and improve the correspondingresults announced by Nakajo,Takahashi,and Toyoda. | Meijuan SHANG Yongfu SU Xiaolong QIN | 2009 | Journal of Systems Science & Complexity2009，22，2： | 0 |
| 18 | The effect of light on the Mn(II) or Fet(lll)-catalyzed oxidation of aqueous S(IV)显示文摘TheeffectoflightontheMn(II)orFetlll)xatalyzedoxidationofaqueousS(IV)XuYongfu(InstituteofAtmosphericPhysics,ChineseAcademyofSc... | Xu Yongfu(Institute of Atmospheric Physics, Chinese Academy ofSciences, Beijing 100029, China)Su WeihanResearch Center for Eco-Environmental Sciences. ChineseAcademy of Scienees, Beijing 100085, China | 1994 | Journal of Environmental Sciences1994，6，1： | 0 |
| 19 | STRONG CONVERGENCE THEOREMS FOR NONEXPANSIVE MAPPING显示文摘这份报纸为接近介绍一个合成重复计划在一致地光滑的 Banach 空格和分别地有一张弱连续的两重性地图的 reflexiveBanach 空格的框架的 nonexpansive mappings 的 fixedpoint。我们建立合成重复计划的 strongconvergence。结果 Kim,徐, Wittmann 和一些其它改进并且延长那些。 | Yongfu SU Xiaolong QIN | 2007 | Journal of Systems Science & Complexity2007，20，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员