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Two-photon Induced UV Fluorescence in Photo-active Spiropyran Molecules

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Chinese Journal of Lasers 1995年第2期B4卷 101-104页

作者： CHI lunguang WANG Zugeng(department of Physics, east china normal university,Joint Laboratory for Quantum Optics, shanghai Institute of Optics &. Fine mechanics,Academia Sinica and east china normal university, shanghai 200062, china) east china normal Univ Shanghai China

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关键词： spiropyran merocyanine two-photon absorption UV fluorescence

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, shanghai 200433, 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 1/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

THE MINIMAL CLOSED NON-TRIVIAL IDEALS OF TOEPLITZ ALGEBRAS ON DISCRETE GROUPS

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Chinese Annals of mathematics,Series B 2000年第3期21卷 367-374页

作者： XU QINGXIANG(department of mathematics, shanghai normal university, shanghai 200234, china.) E-mail:qxxu@*** department of mathematics Shanghai Normal University Shanghai 200234 China

Let G be a discrete group and (G, G+) an ordered group. Let (G, GF) be the minimal quasiordered group containing (G, G+). Let G+ (G) and (G) be the corresponding Toeplitz algebras, and γGF,G+ the natural C*-algebra morphism from G+ (G) to GF(G). This paper studies the connection between Ker GF,G+ and the minimal closed ideal ofTG+ (G). It is proved that if G is amenable and GF≠G+, then Ker γGF,G+ is exactly the minimal closed non-trivial ideal of G+ (G). As an application, in the last part of this paper, a character of K-groups of Toeplitz algebras on ordered groups is clarified.

关键词： Discrete group Toeplitz algebra Minimal ideal

Microfabrication and Performance of Annealed NiTi Shape Memory Thin Films by Sputtering for Microdevice Applications

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材料热处理学报 2004年第5B期25卷 921-922页

作者： GONGFeng-fei. PhysicsDept. EastChinaNormalUniversityShanghai200062China

The microfabrication and performance NiTi shape memory thin films for microdevice applications were studied by microfabrication processes, which were compatible with those of microelectronics fabrication processes. The sputter-deposition conditions, patterning process, and annealing conditions were investigated. The B2 crystal structures of the thin films can be obtained by annealing at 525°C for 30min. The results from x-ray photoemission spectroscopy indicated that the atomic concentration in the surface of the annealed thin films with preferred structures is comparable with those of the as-deposited films.

关键词： NiTi合金退火形状记忆薄膜复合系统

A LINE SEARCH FILTER SECANT METHOD FOR NONLINEAR EQUALITY CONSTRAINED OPTIMIZATION

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Journal of Systems Science & Complexity 2010年第2期23卷 343-361页

作者： Zhujun WANG Detong ZHU department of mathematics Shanghai Normal University Shanghai 200234 China. Business College Shanghai Normal University Shanghai 200234 China.

This paper formulates and analyzes a line search method for general nonlinear equalityconstrained optimization based on filter methods for step acceptance and secant methods for *** feature of the new algorithm is that the secant algorithm is used to produce a searchdirection,a backtracking line search procedure is used to generate step size,some filtered rules areused to determine step acceptance,second order correction technique is used to reduce infeasibility andovercome the Maratos *** convergence properties of this method are analyzed:under mildassumptions it is showed that every limit point of the sequence of iterates generated by the algorithmis feasible,and that there exists at least one limit point that is a stationary point for the ***,it is also established that the Maratos effect can be overcome in our new approach by addingsecond order correction steps so that fast local superlinear convergence to a second order sufficient localsolution is ***,the results of numerical experiments are reported to show the effectivenessof the line search filter secant method.

关键词： Filter method nonlinear programming secant algorithm second order correction.

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, shanghai 200433, 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

A TEM study on pre-excystment cellular structures of Euplotes encysticus

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Cell Research 1995年第1期5卷 125-133页

作者： GU FUKANG AND JUNMEI XU (department of Biology, east china normal university, shanghai 200062, china) department of Biology East China Normal University Shanghai China

Right before the excystment of an Euplotes encysti-cus sawtooth-like folds appeared among the pellicle plas- malemma, the inner and outer alveolar membranes were still sticking together, and were not distinguishable. Mi- crotubular layers already formed at the sites beneath the dorsal cortical pellicle corresponding to vegetative cells,but they still proceed to be organized on the ventral struc-tures. Cristae, highly-tangled with tubular-type struc-tures, appeared on the mitochondria, and were morpho-logically similar to that of vegetative cells. In the cor-tical ciliatures, such as ciliary shafts, kinetosomes, sur-rounding fibrillar cirral baskets, and attached structures of ciliatures, etc., they are different from those in rest- ing cysts which are degenerated or lost. All the cilia- ture microtubules of ciliary shafts are of the 9+2 pattern,but the microtubule-like structure aggregates at triplet - microtubule centers of many kinetosmes, are still under various stages of differentiation. Microtubules beneath the kinetosomal rows are of a developmentally elongated stage; crowded chromatins of various shapes and sizes are found in macronucleus, but there are no nuclear pores (formed by nuclear membrane as in resting cysts) on the nuclear membrane where these chromatins attached.

关键词： Euplotes encysticus excystment pellicle kinetosome macronucleus

On Holomorphic Automorphisms of a Class of Non-homogeneous Rigid Hypersurfaces in C^(N+1)

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Chinese Annals of mathematics,Series B 2010年第2期31卷 201-210页

作者： Qingyan WU department of mathematics,Linyi normal university,Linyi 276005,Shandong,china department of mathematics,Zhejiang university,Hangzhou 310027,china department of mathematics Linyi Normal University Linyi China department of mathematics Zhejiang University Hangzhou China

The author determines the real-analytic infinitesimal CR automorphisms of a class of non-homogeneous rigid hypersurfaces in CN+1 near the origin,and the connected component containing the identity transformation of al... 详细信息

关键词： Real-analytic infinitesimal CR automorphisms Rigid hypersurfaces Holomorphic automorphisms

NUMERICAL SIMULATION OF THE DISPERSION IN OSCILLATING FLOWS WITH REVERSIBLE AND IRREVERSIBLE WALL REACTIONS

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Journal of Hydrodynamics 2009年第4期21卷 482-490页

作者： ZHANG Dao-xiang lu Zhi-ming LIU Yu-lu NG Chiu-On shanghai Institute of Applied mathematics and Mechanics Shanghai University Shanghai 200072 China College of mathematics and Computer Science Anhui Normal University Wuhu 241000 China department of Mechanical Engineering The University of Hong Kong Hong Kong China

This is a study on the mass transport of a solute or contaminant in oscillating flows through a circular tube with a reactive wall layer. The reaction consists of a reversible component due to phase exchange between the flowing fluid and the wall layer, and an irreversible component due to absorption into the wall. The short-time dispersion characteristics are numerically investigated, incorporating the coupling effects between the flow oscillation, sorption kinetics, and retardation due to phase partitioning. The effects of various dimensionless parameters e.g., Da （the Damkoehler number）, α （phase partitioning number）, F （dimensionless absorption number）, and δ （dimensionless Stokes boundary layer number） on dispersion are discussed. In particular, it is found that there exist trinal peaks of the breakthrough curves in some cases.

关键词： dispersion flow oscillation wall reactions