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Rogue Wave, Breathers and Bright-Dark-Rogue Solutions for the Coupled Schrodinger Equations

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Chinese Physics Letters 2011年第11期28卷 4-7页

作者： guo Bo-ling ling Li-Ming Institute of Applied Physics and Computational Mathematics Beijing 100088 The Graduate School of China Academy of Engineering Physics Beijing 100088

We construct explicit rogue wave solutions,breather solitons,and rogue-bright-dark solutions for the coupled non-linear Schrodinger equations by the Darboux transformation.

关键词： Schrodinger transformation solitons

Local Stability to the Einstein-Euler System in Schwarzschild Space-time

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Acta Mathematicae Applicatae Sinica 2022年第2期38卷 352-367页

作者： Jun WU Bo-ling guo Institute of Applied Physics and Computational Mathematics Beijing 100088China

We study the Schwarzschild spacetime solutions to the Einstein-Euler *** our analysis,we aim to show local stability under small *** resolve this problem,we use the Nash-Moser(-Hamilton)*** work was originally develop... 详细信息

关键词： schwarzschild metric local stability Nash-Moser(-Hamilton)theorem

ATTRACTORS FOR DISCRETIZATION OF GINZBURG-LANDAU-BBM EQUATIONS

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Journal of Computational Mathematics 2001年第2期19卷 195-204页

作者： Mu-rong Jiang Bo-ling guo Department of Mathematics Yunnan UniversityKunming 650091China R&D Center for Parallel Software Institute of SoftwareChinese Academy of SciencesBeijing 100080China Institute of Applied Physics and Computational Mathematics Beijing 100088China

Focuses on a study which discreted Ginzburg-Landau-BBM equations with periodic initial boundary value conditions by the finite difference method in spatial direction. Background on the discretization of the equations and the priori estimates; Existence of the attractors for the discrete system; Estimates of the upper bounds of Hausdorff and fractal dimensions for the attractors.

关键词： attractor spatially discreted Ginzburg-Landau-BBM equations Hausdorff and fractal dimensions

Effect of surfactant structure on catalysis of microemulsion for photoisomerization of trans-stilbene

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Chinese Chemical Letters 2007年第10期18卷 1265-1268页

作者： Xia guo ling Lin Rong guo School of Chemistry and Chemical Engineering Yangzhou University Yangzhou 225002 China

In this study, the photoisomerization of trans-stilbene was carded out in water in oil （W/O） microemulsions by using sodium dodecyl sulfate （SDS）, dodecyl trimethyl ammonium bromide （DTAB） and cetyl trimethyl ammonium bromide （CTAB） as surfactant, respectively. The catalytic effect of microemulsion on this reaction is closely related to the structure of surfactant. When there is no photosensitizer 9,10-dicyanoanthracene （DCA）, the surfactant with shorter hydrophobic chain is preferred, while in the presence of DCA, the surfactant with anionic polar group is preferred.

关键词： Microemulsion Photoisomerization trans-Sfilbcne

Numerical analysis of pipeline in J-lay problem

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第11期11卷 908-920页

作者： Li-zhong WANG Feng YUAN Zhen guo ling-ling LI College of Civil Engineering andArchitecture Zhejiang University Hangzhou 310058 China

The pipe configuration and internal loads along the pipeline during the pipeline laying process have long been the focus of engineers. Most researchers simplify the seabed to be rigid and the water to be calm, ignoring the pipe embedment into the seabed and the influence of ocean currents. In this paper, a novel numerical approach is proposed for the laying of pipelines in the so-called J-lay method, taking into account the importance of both pipe embedment and ocean currents. The pipeline is divided into two parts, one part suspended in water, and the other laid on the seabed. The continuity of the two parts at the touch down point (TDP) is guaranteed to make a whole. The feasibility of the model is proved by the comparison between the present model and an analytical model, which shows good agreement in both pipeline configuration and bending moment distribution. Finally, parametric study was performed to consider the influence of current velocity, water depth, top inclination angle, and seabed stiffness, and conclusions are drawn.

关键词： Pipeline J-lay method Numerical model Seabed stiffness Current velocity

The Quasi-reversibility Method to Solve the Cauchy Problems for Parabolic Equations

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Acta Mathematica Sinica,English Series 2013年第8期29卷 1617-1628页

作者： Jing LI Bo ling guo School of Mathematics and Computational Science Changsha University of Science and Technology Institute of Applied Physics and Computational Mathematics

In this paper, on the one hand, we take the conventional quasi-reversibility method to obtain the error estimates of approximate solutions of the Cauchy problems for parabolic equations in a sub-domain of QT with strong restrictions to the measured boundary data. On the other hand, weakening the conditions on the measured data, then combining the duality method in optimization with the quasi-reversibility method, we solve the Cauchy problems for parabolic equations in the presence of noisy data. Using this method, we can get the proper regularization parameter ε that we need in the quasi-reversibility method and obtain the convergence rate of approximate solutions as the noise of amplitude δ tends to zero.

关键词： Ⅲ-posed problems parabolic equations Cauchy problems quasi-reversibility

Study of the Reconstruction of Fractal Structure of Closed-cell Aluminum Foam and its Thermal Conductivity

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Journal of Thermal Science 2012年第1期21卷 77-81页

作者： Dehong Xia Shanshan guo ling Ren Department of Thermal Engineering University of Science and Technology Beijing Beijing 100083 China

Based on the characteristics of the internal structure of closed-cell aluminum foam, this paper attempts to illus- trate the process of reconstructing the internal structures of closed-cell aluminum foam in Monte-Carlo method and the fractal characteristics of the reconstructed model. Furthermore, Binary Array Method is proposed by analyzing the reconstructed model and the thermal conductivity model of closed-cell aluminum foam is established. At the same time, the thermal conductivity of the foam materials with different porosity is calculated by Binary Array Method, and the calculated value coincides with the experimental results in the reference, which proves the correctness of these methods.

关键词： fractal closed-cell aluminum foam reconstruction Binary Array Method thermal conductivity

Geochemistry and sedimentology of sediments in a short fluvial system,NW China:implications to the provenance and tectonic setting

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Journal of Oceanology and Limnology 2023年第5期41卷 1706-1728页

作者： ling guo Huanmeng ZHANG Xiaoxia PENG State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China Shandong Provincial Key Laboratory of Depositional Mineralization&Sedimentary Mineral Shandong University of Science and TechnologyQingdao 266590China

Six outcrop sections in Fenghe River,Northwestern China,were sampled and *** study aims to determine provenance,tectonic setting,and source-area paleoweathering of the sediments of Fenghe River in combination of lithofacies analysis and bulk-rock geochemical *** lithofacies in the studied area were classified as gravel,sand,and fine-grained clastic lithofacies,reflecting generally channel fill deposits,channel bar deposits,and over-bank deposits,*** Chemical Index of Alteration(CIA),Plagioclase Index of Alteration(PIA),and Chemical Index of Weathering(CIW)values ranged 50.10–62.29,50.13–66.35,56.52–71.12,respectively,together with element ratios such as Rb/Sr,K/Na,Rb/K,Th/K,Rb/Ti,and Cs/Ti indicate that the source area was under a low to moderate chemical weathering condition probably in cold and semi-arid ***,plot of SiO_(2)vs.(Al_(2)O_(3)+K_(2)O+Na_(2)O)suggests that the sediments were deposited in a semi-arid *** of Cr/Th ***/Sc,TiO_(2)***,La/Yb *** earth element(REE),and La-Th-Sc ternary diagrams,along with the lithology,indicate that the sediments in Fenghe River were mainly originated from felsic igneous *** elements-based discrimination diagrams and Th-Sc-Zr/10 and La-Th-Sc ternary diagram of the samples indicates that the source rocks of Fenghe River developed in a composite active continental margin and continental island arc field.

关键词： geochemistry lithofacies sediments provenance paleoweathering Fenghe River

Stability and Instability of Schwarzschild-AdS for the Nonlinear Einstein-Klein-Gordon System

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Acta Mathematicae Applicatae Sinica 2022年第4期38卷 778-812页

作者： Feng-Xia LIU Bo-ling guo Institute of Artificial Intelligence Beihang UniversityBeijing 100083China Institute of Applied Physics and Computational Mathematics Beijing 100088China

In this paper,we study the global behavior of solutions to the spherically symmetric(it means that the problem is 2+2 framework)coupled Nonlinear-Einstein-Klein-Gordon(NLEKG)system in the presence of a negative cosmological *** prove the well posedness of the NLEKG system in the Schwarzschild-AdS spacetimes and that the Schwarzschild-AdS spacetimes(the trivial black hole solutions of the EKG system for whichφ=0 identically)are asymptotically *** perturbations of Schwarzschild-AdS initial data again lead to regular black holes,with the metric on the black hole exterior approaching a SchwarzschildAdS *** argument on the black hole exterior,with the redshift effect and weighted Hardy inequalities playing the fundamental role in the *** integrated decay and pointwise decay estimates are obtained.

关键词： nonlinear-Einstein-Klein-Gordon equation schwarzschild-AdS spacetime well-posedness bootstrap