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| 1 | Relocation of the 10 March 2011 Yingjiang,China,earthquake sequence and its tectonic implications显示文摘An earthquake with MS5.8 occurred on 10 March 2011 in Yingjiang county,western Yunnan,China.This earthquake caused 25 deaths and over 250 injuries.In order to better understand the seismotectonics in the region,we collected the arrival time data from the Yunnan seismic observational bulletins during 1 January to 25 March 2011,and precisely hand-picked the arrival times from high-quality seismograms that were recorded by the temporary seismic stations deployed by our Institute of Crustal Dynamics,China Earthquake Administration.Using these arrival times,we relocated all the earthquakes including the Yingjiang mainshock and its aftershocks using the double-difference relocation algorithm.Our results show that the relocated earthquakes dominantly occurred along the ENE direction and formed an upside-down bow-shaped structure in depth.It is also observed that after the Yingjiang mainshock,some aftershocks extended toward the SSE over about 10 km.These results may indicate that the Yingjiang mainshock ruptured a conjugate fault system consisting of the ENE trending Da Yingjiang fault and a SSE trending blind fault.Such structural features could contribute to severely seismic hazards during the moderate-size Yingjiang earthquake. | Jianshe Lei Guangwei Zhang Furen Xie Yuan Li Youjin Su Lifang Liu Honghu Ma Junwei Zhang | 2012 | Earthquake Science2012，25，1： | 35 |
| 2 | Interference-assisted kaleidoscopic meta-plexer for arbitrary spin-wavefront manipulation显示文摘Achieving simultaneous polarization and wavefront control,especially circular polarization with the auxiliary degree of freedom of light and spin angular momentum,is of fundamental importance in many optical applications.Interferences are typically undesirable in highly integrated photonic circuits and metasurfaces.Here,we propose an interference-assisted metasurface-multiplexer(meta-plexer)that counterintuitively exploits constructive and destructive interferences between hybrid meta-atoms and realizes independent spin-selective wavefront manipulation.Such kaleidoscopic meta-plexers are experimentally demonstrated via two types of single-layer spinwavefront multiplexers that are composed of spatially rotated anisotropic meta-atoms.One type generates a spinselective Bessel-beam wavefront for spin-down light and a low scattering cross-section for stealth for spin-up light.The other type demonstrates versatile control of the vortex wavefront,which is also characterized by the orbital angular momentum of light,with frequency-switchable numbers of beams under linearly polarized wave excitation.Our findings offer a distinct interference-assisted concept for realizing advanced multifunctional photonics with arbitrary and independent spin-wavefront features.A variety of applications can be readily anticipated in optical diodes,isolators,and spin-Hall meta-devices without cascading bulky optical elements. | He-Xiu Xu Guangwei Hu Ying Li Lei Han Jianlin Zhao Yunming Sun Fang Yuan Guang-Ming Wang Zhi Hao Jiang Xiaohui Ling Tie Jun Cui Cheng-Wei Qiu | 2019 | Light(Science & Applications)2019，8，1： | 11 |
| 3 | THE UNCONDITIONAL STABILITY OF PARALLEL DIFFERENCE SCHEMES WITH SECOND ORDER CONVERGENCE FOR NONLINEAR PARABOLIC SYSTEM显示文摘 | Yuan Guangwei Sheng Zhiqiang Hang Xudeng | 2007 | Journal of Partial Differential Equations2007，20，1： | 9 |
| 4 | The unconditional stable and convergent difference methods with intrinsic parallelism for quasilinear parabolic systems显示文摘A kind of the general finite difference schemes with intrinsicparallelism for the boundary value problem of the quasilinearparabolic system is studied without assuming heuristically thatthe original boundary value problem%for the quasilinear parabolic systemhas the unique smooth vector solution. By the method of a prioriestimation of the discrete solutions of the nonlinear differencesystems, and the interpolation formulas of the various norms ofthe discrete functions and the fixed-pointtechnique in finite dimensional Euclidean space, the existence anduniqueness of the discrete vector solutions of the nonlineardifference system with intrinsic parallelismare proved. Moreover the unconditional stability ofthe general finite difference schemes with intrinsic parallelismis justified in the sense of the continuous dependence of thediscrete vector solution of the difference schemes on the discretedata of the original problems in the discrete W(2,1)2 norms. Finally the convergence of the discrete vector solutions ofthe certain difference schemes with intrinsic parallelism to the unique generalized solution of the original quasilinear parabolic problem is proved. | ZHOU Yulin YUAN Guangwei SHEN Longjun Laboratory of Computational Physics, Center of Nonlinear Studies, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China | 2004 | Science China Mathematics2004，47，3： | 6 |
| 5 | Toward emerging gallium oxide semiconductors:A roadmap显示文摘Owing to the advantages of ultra-wide bandgap and rich material systems,gallium oxide(Ga_(2)O_(3))has emerged as a highly viable semiconductor material for new researches.This article mainly focuses on the growth processes,material characteristics,and applications of Ga_(2)O_(3).Compared with single crystals and the epitaxial growth of other wide-bandgap semiconductors,large-size and high-quality��-Ga_(2)O_(3) single crystals can be efficiently grown with a low cost,making them highly competitive.Thanks to the availability of high-quality single crystals,epi-taxial films,and rich material systems,high-performance semiconductor devices based on Ga_(2)O_(3) go through a booming development in recent years.The defects and interfaces of Ga_(2)O_(3) are comprehensively analyzed owing to their significant influence on practical applications.In this study,the two most common applications of Ga_(2)O_(3) materials are introduced.The high breakdown electric field,high working temperature,and excellent Baliga’s figure-of-merit of Ga_(2)O_(3) represent an inspiring prospect for power electronic devices.In addition,the excellent absorption in deep-ultraviolet band provides new ideas for optoelectronic detectors and ensures the dramatic progress.Finally,the summary,challenges,and prospects of the Ga_(2)O_(3) materials and devices are presented and discussed. | Yuan Yuan Weibing Hao Wenxiang Mu Zhengpeng Wang Xuanhu Chen Qi Liu Guangwei Xu Chenlu Wang Hong Zhou Yanni Zou Xiaolong Zhao Zhitai Jia Jiandong Ye Jincheng Zhang Shibing Long Xutang Tao Rong Zhang Yue Hao | 2021 | Fundamental Research2021，1，6： | 5 |
| 6 | A cell-centered lagrangian scheme in two-dimensional cylindrical geometry显示文摘A new Lagrangian cell-centered scheme for two-dimensional compressible flows in planar geometry is proposed by Maire et al.The main new feature of the algorithm is that the vertex velocities and the numerical fluxes through the cell interfaces are all evaluated in a coherent manner contrary to standard approaches.In this paper the method introduced by Maire et al.is extended for the equations of Lagrangian gas dynamics in cylindrical symmetry.Two different schemes are proposed,whose difference is that one uses volume weighting and the other area weighting in the discretization of the momentum equation.In the both schemes the conservation of total energy is ensured,and the nodal solver is adopted which has the same formulation as that in Cartesian coordinates.The volume weighting scheme preserves the momentum conservation and the area-weighting scheme preserves spherical symmetry.The numerical examples demonstrate our theoretical considerations and the robustness of the new method. | SHEN ZhiJun YUAN GuangWei YUE JingYan LIU XueZhe | 2008 | Science China Mathematics2008，51，8： | 4 |
| 7 | Isolation and expression pattern analysis of novel ESTs from human fetal brain显示文摘In order to learn the mechanism of brain development and differentiation, 90 expressed sequence tags (ESTs) were isolated by differential display from the cerebrum and cerebellum of 13-week and 33-week fetal brains. After searching database, 74 of them represented novel genes, some of them were homologous to the brain development related genes. Using total cDNA probes, 79 of the ESTs and their expression differences in fetal brain were further characterized. | Meihui Pan Jiangang Yuan Guangwei Du Yan Zhou Hui Yao Boqin Qiang | 1998 | Chinese Science Bulletin1998，43，21： | 3 |
| 8 | Calculating the vertex unknowns of nine point scheme on quadrilateral meshes for diffusion equation显示文摘In the construction of nine point scheme,both vertex unknowns and cell-centered unknowns are introduced,and the vertex unknowns are usually eliminated by using the interpolation of neighboring cell-centered unknowns,which often leads to lose accuracy.Instead of using interpolation,here we propose a different method of calculating the vertex unknowns of nine point scheme,which are solved independently on a new generated mesh.This new mesh is a Vorono¨i mesh based on the vertexes of primary mesh and some additional points on the interface.The advantage of this method is that it is particularly suitable for solving diffusion problems with discontinuous coeffcients on highly distorted meshes,and it leads to a symmetric positive definite matrix.We prove that the method has first-order convergence on distorted meshes.Numerical experiments show that the method obtains nearly second-order accuracy on distorted meshes. | YUAN GuangWei SHENG ZhiQiang | 2008 | Science China Mathematics2008，51，8： | 3 |
| 9 | Experimental observation of coherent interaction between laser and erbium ions ensemble doped in fiber at sub 10 mK显示文摘Rare-earth ions doped in solid-state materials are considered promising candidates for quantum information applications,especially for photonic quantum memory.Among them,erbium ions doped in an optical fiber have attracted a lot of attentions due to their ability to provide efficient photon-atom interaction on a telecom-C band compatible transition.The coherent photon-atom interaction,which is crucial for quantum memory,has not yet been investigated for erbium ions doped in fiber at the temperature of sub 10 m K with the magnetic environment.In this paper,we experimentally observe optical nutation,which results from the coherent interaction between laser and erbium ions ensemble,in a piece of 9.5-m-long fiber with the erbium concentration of 200 ppm.We also extract the transition dipole moment from the results of optical nutation and further investigate its dependence on laser wavelength and magnetic field.A transition dipole moment of(3.424±0.019)×10^-32 C·m is obtained at the wavelength of 1537 nm and magnetic field of 0.2 T.Our results could pave the way for realizing solid-state quantum networks at telecom-C band. | Qi XI Shihai WEI Chenzhi YUAN Xueying ZHANG You WANG Haizhi SONG Guangwei DENG Bo JING Daniel OBLAK Qiang ZHOU | 2020 | Science China(Information Sciences)2020，63，8： | 3 |
| 10 | On the Suitable Weak Solutions to the Boussinesq Equations in a Bounded Domain | Guo Boling Yuan Guangwei Guo Boling Yuan Guangwei Institute of Applied Physics and Computational Mathematics Beijing,100088 China | 1996 | Acta Mathematica Sinica,English Series1996，12，2： | 2 |
| 11 | Unconditional Stablility of Parallel Alternating Difference Schemes for Semilinear Parabolic Systems显示文摘 | Yuan Guangwei Shen Longjun Zhou Yulin | 2001 | Appl Math Comput2001，117，： | 1 |
| 12 | An Explicit-Implicit Predictor-Corrector Domain Decomposition Method for Time Dependent Multi-Dimensional Convection Diffusion Equations显示文摘The numerical solution of large scale multi-dimensional convection diffusion equations often requires efficient parallel algorithms.In this work,we consider the extension of a recently proposed non-overlapping domain decomposition method for two dimensional time dependent convection diffusion equations with variable coefficients. By combining predictor-corrector technique,modified upwind differences with explicitimplicit coupling,the method under consideration provides intrinsic parallelism while maintaining good stability and accuracy.Moreover,for multi-dimensional problems, the method can be readily implemented on a multi-processor system and does not have the limitation on the choice of subdomains required by some other similar predictor-corrector or stabilized schemes.These properties of the method are demonstrated in this work through both rigorous mathematical analysis and numerical experiments. | Liyong Zhu Guangwei Yuan Qiang Du | 2009 | Numerical Mathematics(Theory,Methods and Applications)2009，2，3： | 1 |
| 13 | A Stability Analysis of Hybrid Schemes to Cure Shock Instability显示文摘The carbuncle phenomenon has been regarded as a spurious solution produced by most of contact-preserving methods.The hybrid method of combining high resolution flux with more dissipative solver is an attractive attempt to cure this kind of non-physical phenomenon.In this paper,a matrix-based stability analysis for 2-D Euler equations is performed to explore the cause of instability of numerical schemes.By combining the Roe with HLL flux in different directions and different flux components,we give an interesting explanation to the linear numerical instability.Based on such analysis,some hybrid schemes are compared to illustrate different mechanisms in controlling shock instability.Numerical experiments are presented to verify our analysis results.The conclusion is that the scheme of restricting directly instability source is more stable than other hybrid schemes. | Zhijun Shen Wei Yan Guangwei Yuan | 2014 | Communications in Computational Physics2014，15，5： | 1 |
| 14 | ParaUel difference schemes for heat conduction equations 显示文摘 | YUAN Guangwei ZUO Fengli | 2003 | Intern J Computer Math2003，80，8： | 1 |
| 15 | Unconditional stability of parallel difference schemes with second order accuracy for parabolic equation显示文摘 | SHENG Zhiqiang YUAN Guangwei HANG Xuedeng | 2007 | Applied Mathematics and Computation2007，184，： | 1 |
| 16 | A monotone finite volume scheme for advection–diffusion equations on distorted meshes显示文摘 | Shuai Wang Guangwei Yuan Yonghai Li Zhiqiang Sheng | 2011 | Fluids2011，，7： | 1 |
| 17 | Analysis of Accuraccy of a Finite Volume Scheme for Diffusion Equations on Distotted Meshes显示文摘 | YUAN Guangwei SHENG Zhiqiang | | 0，，02： | 1 |
| 18 | Monotone Finite Volume Schemes for Diffusion Equations on Polygonal Meshes显示文摘 | YUAN Guangwei SHENG Zhiqiang | | 0，，12： | 1 |
| 19 | Influence of the Growth Temperature of the High-temperature AlN Buffer on the Properties of GaN Grown on Si( 111 ) Substrate 显示文摘 | Lu Yuan Liu Xianglin Wang Xiaohui Lu Da-Cheng Li Dabing Han Xiuxun Cong Guangwei Wang Zhanguo | 2004 | Journal of Crystal Growth2004，263，14： | 1 |
| 20 | Unconditional stability of parallel alternating difference schemes for semilinear parabolic systems显示文摘 | Yuan Guangwei Shen Longjun Zhou Yulin | 2001 | Appl Math Comput2001，117，： | 1 |
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