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Ultrafast excitation relaxation in light-harvesting complex LH2.from *** 601

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Science china Chemistry 2004年第3期47卷 192-199页

作者： GUO Lijun1,2. LIU Yuan3, LIU Weimin2. GUO Junhua1, XU Chunhe3 & QIAN Shixiong2.1. School of physics and Information Optoelectronics, Henan university, Kaifeng 475001,{2. 2. physics department, fudan university, shanghai 200433,{2. 3. shanghai Institute of Plant Physiology, Chinese Academy of Sciences, shanghai 2.0032.{2. School of physics and Information Optoelectronics Henan University Kaifeng China physics department Fudan University Shanghai China shanghai Institute of Plant Physiology Chinese Academy of Sciences Shanghai China

The energy relaxation and kinetic evolution of transient spectra of bacteriochloro- phylls (BChls) in light-harvesting complex LH2.from Rb. sphaeroides 601 were investigated using femtosecond pump-probe technique. Upon 783 nm excitation, the energy at B800 BChls ex-periences an intramolecular redistribution with 0.35 ps time constant before transferring to B850 BChls. With tuning the excitation wavelength, the dynamical evolution of excited BChls was clearly observed, which indicates an obvious competition between the ground state bleaching and excited state absorption (ESA) of BChls involved and an isosbestic point near 818 nm, and also demonstrates that from the lower electronic excited state of B800 BChls to the higher exci-tonic state of B850 BChls is an efficient routine for energy transfer. The excitation energy in higher excitonic states of B850 BChls relaxes rapidly to the next lowest excitonic state by inter-conversion, delocalization to adjacent molecular, populating the lowest excitonic state and the change of molecular conformation.

关键词： photosynthesis, light-harvesting complex, energy transfer, ultrafast, dynamics, purple bacteria.

Modern thermodynamics-New concepts based on the second law of thermodynamics

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Progress in Natural Science:Materials International 2009年第1期19卷 125-135页

作者： Jitao Wang department of Microelectronics,fudan {2.,shanghai 200433,china department of Microelectronics Fudan University Shanghai 200433 China

Thermodynamics is a core part of *** all scientists should have a basic knowledge of *** is a science of development,and is a viewpoint of scientific development in natural *** of thermodynamics has influence not only on natural sciences,but also on social sciences and *** concepts and definitions are very important for any discipline of science,so what is classical thermodynamics and what is modern thermodynamics have become the key points of puzzledom in *** this paper,after clarification of fundamental concept in thermodynamics,a complete basic modern classification of thermodynamics is naturally *** is suggested that extended Carnot theorem and dissipation decrease theorem,together with the laws of thermodynamics,are the most fundamental theorems in thermodynamics *** thermodynamics is a new field besides equilibrium thermodynamics belonging to the equal part of the second law of thermodynamics.

关键词： Modern thermodynamics Second law of thermodynamics Thermodynamic coupling Spiral reactions Chemical oscillation Low-pressure diamond growth

A NONLOCAL NONLINEAR BOUNDARYVALUE PROBLEM FOR THE HEAT EQUATIONS

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Chinese Annals of Mathematics,Series B 1996年第3期17卷 365-374页

作者： YAN JINHAI(department of Mathematics, fudan university,{2., china) department of Mathematics Fudan University Shanghai 200433 China

The existence and limit behaviour of the solution for a kind of nonlocal nonlinear boundaryvalue condition on a part of the boundary is studied for the heat equation, which physicallymeans that the potential is the function of the total flux. When this part of boundary shrinksto a point in a certain wayt this condition either results in a Dirac measure or simply disappearsin the corresponding problem.

关键词： Heat equation Nonlinear boundary problem Potential Limit behavior

THE CODIMENSION FORMULA ON AF-COSUBMODULES

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Chinese Annals of Mathematics,Series B 2002年第3期23卷 419-424页

作者： GUO KUNYU department of Mathematics, fudan university,{2., china department of Mathematics Fudan University Shanghai 200433 China

Let M1, M2.be submodules of analytic Hilbert module X on ?(? Cn) such that M1 ? M2.and dimM1/M2.= k < '. If M2.is an AF-cosubmodule, then the codimension dimM1/M2.of M2.in M1 equals the cardinality of zeros of M2.rel... 详细信息

Let M1, M2.be submodules of analytic Hilbert module X on ?(? Cn) such that M1 ? M2.and dimM1/M2.= k 2.is an AF-cosubmodule, then the codimension dimM1/M2.of M2.in M1 equals the cardinality of zeros of M2.related to MI by counting multiplicities. The codimension formula has some interesting applications. In particular, the author calculates out the dimension of Rudin quotient module, which is raised in [14].

关键词： AF-cosubmodule Characteristic space Analytic Hilbert module

Metalloproteins/metalloenzymes for the synthesis of acetyl-CoA in the Wood-Ljungdahl pathway

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Science china Chemistry 2009年第12期52卷 2071-2082页

作者： ZHU XiaoFei1 & TAN XiangShi1,2.1 department of Chemistry,fudan {2.,shanghai 200433,china 2.Institutes of Biomedical Sciences,fudan {2.,shanghai 200433,china department of Chemistry Fudan University Shanghai China Institutes of Biomedical Sciences Fudan University Shanghai China

This paper focuses on the group of metalloproteins/metalloenzymes in the acetyl-coenzyme A synthesis pathway of anaerobic microbes called Wood-Ljungdahl pathway,including formate dehydrogenase (FDH),corrinoid iron sulfur protein (CoFeSP),acetyl-CoA synthase (ACS) and CO dehydrogenase (CODH). FDH,a key metalloenzyme involved in the conversion of carbon dioxide to methyltetrahydrofolate,catalyzes the reversible oxidation of formate to carbon dioxide. CoFeSP,as a methyl group transformer,accepts the methyl group from CH3-H4 folate and then transfers it to ACS. CODH reversibly catalyzes the reduction of CO2.to CO and ACS functions for acetyl-coenzyme A synthesis through condensation of the methyl group,CO and coenzyme A,to finish the whole pathway. This paper introduces the structure,function and reaction mechanisms of these enzymes.

关键词： Wood-Ljungdahl pathway formate dehydrogenase corrinoid iron sulfur protein acetyl-CoA synthase CO dehydrogenase

The adsorption isotherms, IR and ^(2.)Si MAS NMR spectra of modified MCM-41 molecular sieves

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Chinese Science Bulletin 1997年第10期42卷 828-832页

作者： LONG Yingcai, DONG Weiyang, XU Taiming, GAO Xiaoqin, XIE Guangen and SUN Yaojun1. department of Chemistry, fudan university,{2., china 2. Centre of Analysis and Measurement, fudan university,{2., china department of Chemistry Fudan University Shanghai China Centre of Analysis and Measurement Fudan University Shanghai China

RECENTLY a new family of mesoporous molecular sieves,M41S,was reported by researchers atMobil R&D *** a member of the family,MCM-41,which exhibits a hexagonalarray of uniform channel mesopores,has been *** channel size can be variedfrom approximately 1.5 nm to greater than 10 nm by choosing different surfactants,auxiliarychemicals(1,3,5-trimethylbenzene)in the reactant,and by changing the reaction *** wall thickness of this kind of molecular sieve is in the range of 0.3 to 1.3 nm esti-

关键词： MCM-41 surface modification adsorption isotherm IR 2.Si MAS NMR.

BLOCKWISE PERTURBATION THEORY FOR 2.2.BLOCK MARKOV CHAINS

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Journal of Computational Mathematics 2000年第3期18卷 305-312页

作者： Jun-gong Xue Wei-guo Gao (department of Mathematics, fudan university, {2., 200433, china) 复旦大学上海 200433

Let P be a transition matrix of a Markov chain and be of the form P = qq@. The stationary distribution πT is partitioned conformally in the form (π1T, π2.). This paper establish the relative error bound in πiT (i ... 详细信息

关键词： Blockwise perturbation Markov chains stationary distribution error bound

FATOU　PROPERTY　ON　HARMONIC　MAPS　FROM　COMPLETE　MANIFOLDS　WITH　NONNEGATIVE　CURVATURE　AT　INFINITY　INTO　CONVEX　BALLS

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Chinese Annals of Mathematics,Series B 1995年第3期16卷 341-350页

作者： YANG YIHU(department of Mathematics,fudan {2.,shanghai 200433, china.) fudan UNIV DEPT MATHSHANGHAI 200433PEOPLES R CHINA

The author considers harmonic maps on complete noncompact manifolds, solves the Dirichlet problem in manifolds with nonnegative sectional curvature out of a compact set, and proves the Fatou theorem for harmonic maps ... 详细信息

关键词： Complete manifold Harmonic map Convex ball Fatou property.

Local connectivity of Julia sets for a family of biquadratic polynomials

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Science china Mathematics 2007年第10期50卷 1477-1492页

作者： Jing L~(1+) Wei-yuan QIU~2.~1 department of Basic Education,shanghai Maritime {2.,shanghai 2.0000,china ~2.department of Mathematics,fudan {2.,shanghai 200433,china department of Basic Education Shanghai Maritime University Shanghai China department of Mathematics Fudan University Shanghai China

The local connectivity of Julia sets for the family of biquadratic polynomials f_c(z)= (z^2.2.^2.z^2.with a parameter c is *** is proved that for any parameter c,the boundary of the immediately attracting domain of f_... 详细信息

关键词： biquadratic polynomials Julia sets local connectivity