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CMC surfaces in the hyperbolic 3-space

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Chinese Science Bulletin 1998年第7期43卷 547-550页

作者： YU Zuhuan 1, 2 and LI Zhenqi 1, 3 1. institute of mathematics, fudan university, shanghai 200433, china 2. Department of mathematics,Sichuan Union university, Chengdu 610064, china 3. Department of mathematics, Nanchang university, Nanchang 33 nstitute of Mathemalics Fudan University Shanghai China Department of mathematics Sichuan Union University Chengdu China Department of mathematics Nanchang University Nanchang China

CMC-H surfaces satisfying H≥1 are studied. It is proved that these surfaces possess a natural representation which is a generalization of the Bryant’s result.

关键词： hyperbolic space CMC surface Weierstrass representation.

Local Existence of the Shock Front Solution to the Axi-symmetrical Piston Problem in Compressible Flow

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Acta Mathematicae Applicatae Sinica 2004年第4期 589-604页

作者： Ze Jun WANG institute of mathematics,fudan university,shanghai 200433,P.R.china

In this paper,we study a kind of 2-dimensional axi-symmetrical piston problem in com-pressible *** corresponding mathematical model is the well-known Euler *** theNewton iteration procedure and energy estimate,we give... 详细信息

关键词： Piston problem Euler system Shock front solution Newton iteration Energy estimate

AN ELASTOPLASTIC PROBLEM WITH FRICTIONS

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Chinese Annals of mathematics,Series B 1990年第4期11卷 454-465页

作者：汤奇 institute of mathematics Fudan UniversityShanghaiChina.

This looper discusses on elastoplastic problem with frictions given on a part of *** that friction follows simplified Coulom’s law,the author gives anexplicit relaxation of energy and proves that the solution exists.

关键词： relaxation simplified admissible friction hough embedding simplify relaxed preserve 子一

Mean Curvature Flow via Convex Functions on Grassmannian Manifolds

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Chinese Annals of mathematics,Series B 2010年第3期31卷 315-328页

作者： Yuanlong XIN Ling YANG institute of mathematics Fudan University Shanghai 200433 China. Max Planck institute for the mathematics in sciences Inselstr. 22-24 Leibzig 04103 Germany.

Using the convex functions on Grassmannian manifolds, the authors obtain the interior estimates for the mean curvature flow of higher codimension. Confinable properties of Gauss images under the mean curvature flow have been obtained, which reveal that if the Gauss image of the initial submanifold is contained in a certain sublevel set of the v-function, then all the Gauss images of the submanifolds under the mean curvature flow are also contained in the same sublevel set of the v-function. Under such restrictions, curvature estimates in terms of v-function composed with the Gauss map can be carried out.

关键词： Mean curvature flow Convex function Gauss map

THE REGULARITY OF SOLUTIONS FOR NONLINEAR DEGENERATE ELLIPTIC BOUNDARY VALUE PROBLEM

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Chinese Annals of mathematics,Series B 1990年第3期11卷 330-341页

作者：洪家兴 institute of mathematics Fudan University

This paper is devoted lo the study of regularity of solutions for Dirichlet probelm ofnonlinear degenerate elliptic equations in two dimensional case. A sufficient condition fortheir solutions in C3+α（Ω） to be cer... 详细信息

关键词： regularity elliptic degenerate devoted Dirichlet proof Nirenberg grateful implies milar

LIFE-SPAN OF CLASSICAL SOLUTIONS TO ONE DIMENSIONAL NONLINEAR WAVE EQUATIONS

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Chinese Annals of mathematics,Series B 1992年第3期13卷 266-279页

作者：李大潜俞新周忆 institute of mathematics Fudan UniversityShanghai 200433China. Department of Applied mathematics Tongji UniversityShanghai 200092China.

By means of a simple and direot method,the authors obtain the sharp lower bound ofthe life-span of classioal solutions to the Cauohy problem with small initial data for onedimensional fully nonlinear wave equations ut... 详细信息

关键词： WAVE sharp affine verified 云一岁夕 integer applying desired satisfy

Ozone decomposition under the irradiation of 253.7 nm in the presence of methyl bromide

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Journal of Environmental sciences 2000年第3期12卷 266-269页

作者： LI Chao\|min, HOU Jian, YU Yong, HOU Hui\|qi (institute of Environmental Science, fudan university, shanghai 200433, china) institute of Environmental Science Fudan University Shanghai 200433 China

In this paper the mechanism and kinetic of ozone decomposition under the irradiation of 253.7 nm UV\|light were studied. The quantum yield of the ozone depletion in the presence of methyl bromide is further determine... 详细信息

关键词： methyl bromide ozone UV

Identification and Characterization of a Rat Novel Gene RSEP4 Expressed Specifically in Central Nervous System

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Acta Biochimica et Biophysica Sinica 2004年第7期36卷 501-507页

作者： Xi-Dao WANG1,2, Ling-Wei KONG1, Zhi-Qin xie1, Yu-Qiu ZHANG3, Zhi-Xin LIN2, Zhi-Qi ZHAO3,Lei YU4, and Nai-He JING1* 1 Laboratory of Molecular Cell Biology, Laboratory of Stem Cell Biology, institute of Biochemistry and Cell Biology, shanghai institutes for Biological sciences, Chinese Academy of sciences, Graduate school of the Chinese Academy of sciences, shanghai 200031, china school of Life Science and Biotechnology, 2 shanghai Jiaotong university, shanghai 200030, china institute of Neurobiology, fudan university, shanghai 200433, china 3 4 Department of Cell Biology, Neurobiology and Anatomy, College of Medicine, university of Cincinnati, Cincinnati, Ohio, USA Laboratory of Molecular Cell Biology and Stem Cell Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Graduate School of the Chinese Academy of Sciences Shanghai China

The low-abundantly expressed genes composed the majorities of the mRNAs expressed in the central nervous system (CNS), and were thought to be important for the normal brain functions. Through differential screening a low-abundance cDNA sublibrary with mRNA from neuropathic pain of chronic constriction injury (CCI) model, we have identified a novel rat gene, rat spinal-cord expression protein 4 gene (RSEP4). The total length of RSEP4 cDNA is 2006 bp, with a 501 nucleotide open reading frame (ORF) that encodes a 167 amino acid polypeptide. Northern blot revealed that RSEP4 was expressed specifically in the CNS. In situ hybridization showed that the mRNA of RSEP4 was strongly expressed in the CA1, CA2, CA3 and DG regions of hippocampus, the Purkinje cells of cerebellum, and the small sensory neurons of dorsal horn and large motor neurons of ventral horn of spinal cord. Over-expression of RSEP4-EGFP fusion protein in the human embryonic kidney 293T cells showed that RSEP4 protein was mainly localized in the cell cytoplasm. These results suggest that RSEP4 may play some roles in the CNS.

关键词： central nervous system (CNS) rat Northern blot in situ hybridization

Identification and Characterization of glnA Promoter and its Corresponding Trans-regulatory Protein GlnR in the Rifamycin SV Producing Actinomycete,Amycolatopsis mediterranei U32

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Acta Biochimica et Biophysica Sinica 2006年第12期38卷 831-843页

作者： Hao YU~(1&) Wen-Tao PENG~1 Yang LIU~1 Ting WU~2 Yu-Feng YAO~1 Ming-Xue CUI~1 Wei-Hong JIANG~1 Guo-Ping ZHAO~(1,3,4*) 1 Laboratory of Molecular Microbiology,institute of Plant Physiology and Ecology,shanghai institutes for Biological sciences,Chinese Academy of sciences,shanghai 200032,china 2 Department of Medicinal Chemistry,school of Pharmacy,fudan university,shanghai 200032,china 3 State Key Laboratory of Genetic Engineering & Department of Microbiology,school of Life Science,fudan university,shanghai 200433,china 4 Laboratory of Disease and Health Genomics,Chinese National Human Genome Center at shanghai,shanghai 201203,china Laboratory of Molecular Microbiology Institute of Plant Physiology and Ecology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200032 China Department of Medicinal Chemistry School of Pharmacy Fudan University Shanghai 200032 China State Key Laboratory of Genetic Engineering & Department of Microbiology School of Life Science Fudan University Shanghai 200433 China Laboratory of Disease and Health Genomics Chinese National Human Genome Center at Shanghai Shanghai 201203 China

The genetic requirements for the transcription of glnA,encoding the major glutaminesynthetase in a rifamycin SV-producing Amycolatopsis mediterranei strain,U32,were *** experiments showed that the promoter of U32 glnA （pglnA） was likely to have two transcriptioninitiation sites:P1and P2,located 157 and 45 nucleotides （nt） upstream of the translational start codon,*** mobility shift and DNase I footprinting analyses revealed a 30 bp cis-element locatedat 45 to 75 nt downstream of P1,or 38 to 68 nt upstream of *** sequence of the cis-element displayedhigh similarity to the corresponding regions of pglnA from Streptomyces coelicolor and *** as a reporter gene,the expression levels of U32 pglnA and its deletion derivatives under differentnitrogen-source conditions were analyzed by detecting the catechol dioxygenase activities in ***54,*** J508 and *** FS10 （glnR mutant）.These in vivo studies showed that theactivation of U32 pglnA in *** required GlnR,and its binding to the U32 pglnA was furtherconfirmed by the gel mobility shift *** and heterologous expression of the U32 glnR allowed usto detect the in vitro interaction between the U32 GlnR and the corresponding pglnA *** shown by in vivo glnR inactivation and complementation indicated that GlnR is essential for theactive transcription of glnA in U32.

关键词： glnA promoter cis-element glnR Amycolatopsis mediterranei