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INTERIOR SPACETIME FOR THE QUANTUM BLACK HOLE AND ITS HOMOMORPHIC MAP

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Science in China,Ser.A 1986年第8期29卷 880-888页

作者：朱世昌 department of physics shanghai Teachers Univerity

The quantum gravitational effect in the Planck area is discussed for the dynamical and static cases. The interior metric of the quantum black hole is obtained. We prove the existance of the singularity-free quantum bl... 详细信息

关键词： INTERIOR SPACETIME FOR THE QUANTUM BLACK HOLE AND ITS HOMOMORPHIC MAP IT 占一

All-optical Steerable Directional Coupler Using Kerr Dark Spatial Soliton Waveguides

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Chinese Journal of Lasers 1997年第5期B6卷 452-460页

作者： CHEN Xianfeng CHEN Yingli LI Qu (Institute of Optics and Photonics department of Applied physics,shanghai Jiaotong University, shanghai 200030, China) shanghai Jiaotong Univ Shanghai China

Based on guidemode characters of spatial soliton wavesuides and theory of coupling between two waveguides, it has realized a kind of all-optical steerable directional coupler using spatial soliton waveguides. When input site and corresponding POwer intensity of two spatial solitons change, the output site of the signal through coupling between the two soliton waveguides will change. Some factors such as ratio of soliton and signal wavelength, linear refractive-index of media and coupling length which have influence on the performance of the steerable all-optical directional coupler have been studied.

关键词： spatial soliton waveguides all-optical directional coupler optical communication

Bounded Projections and Duality on Spaces of Holomorphic Functions in the Unit Ball of (?)~n

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Acta Mathematica Sinica,English Series 1995年第1期11卷 29-36页

作者： Ren Fuyao department of Mathematics Fudan University shanghai,200433 China Xiao Jianbin department of Mathematics Hunan Normal University Changsha,410081 China department of Mathematics Fudan University Shanghai People's Republic of China department of Mathematics Hunan Normal University Changsha People's Republic of China

In this paper three Banach spaces A(ф),A(ф)and A~1(ф)of functions holomor- phic in the unit ball B of ■~n are *** exhibit bounded projections from C(B)onto A(ф),from L~1(B)onto A~1(ф),and from L~∞(B)onto A(ф).... 详细信息

关键词： Bounded Projections and Duality on Spaces of Holomorphic Functions in the Unit Ball of Math Ball

Traveling－Wave　Electrooptical　Modulator　on　Polymeric　Film　with　Reversal　Poling　Structure

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Chinese Journal of Lasers 1994年第1期B3卷 57-61页

作者： ZHOU Yi CHEN Yixin(department of Applied physics, shanghai Jiao Tong University, shanghai200030, China)SUN Shiping(department of Electronical Engineering ,shanghai Jiao Tong University , shanghai 200052, China) shanghai Jiaotong Univ Shanghai China

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Ｔｒａｖｅｌｉｎｇ－ＷａｖｅＥｌｅｃｔｒｏｏｐｔｉｃａｌＭｏｄｕｌａｔｏｒｏｎＰｏｌｙｍｅｒｉｃＦｉｌｍｗｉｔｈＲｅｖｅｒｓａｌＰｏｌｉｎｇＳｔｒｕｃｔｕｒｅ￥ＺＨＯＵＹｉ；ＣＨＥＮＹｉｘｉｎ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＰｈｙｓｉｃｓ，Ｓ...

关键词： reversal poling Electrooptical effect modulator

Back-scattering from rough sea surface with foams

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Acta Oceanologica Sinica 1993年第4期12卷 563-572页

作者： Jin Yaqiu, Huang Xingzhong and Yin Jieyi department of Electronic Engineering, Fudan University, shanghai 200433, China department of Electronic Science, China East Normal University, shanghai 200062, China Dept of Electronic Engineering Fudan University Shanghai 200433 China China

By using iterative method to solve the vector radiative transfer equation of discrete scatterers with randomly rough under-boundary, the back-scattering coefficient is derived, and is applied to the two-scale model of sea surface with foam scatterers driven by strong wind. By employing the modified probability density function of Cox and Munk's, and Pierson's sea spectrum, numerical results of polarized back-scatter ing are calculated. The functional dependence on wind speed and direction, observation angle, polarization and other parameters are discussed, and theoretical results are favorably matched with experimental data.

关键词： Radiative transfer two-scale randomly rough surface back-scattering wind

Studies on the alcohol exchange reactions of methoxide ditungsten [W(IV)] compound W_2Cl_4(OCH_3)_4(CH_3OH)_2, prepared from (n-Bu_4N)_3W_2Cl_9

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Chinese Journal of Chemistry 1990年第6期8卷 520-528页

作者： HONG Bo JIN, Song-Lin Yih-Tong KU (GU, Yi-Dong), department of Chemistry, Fudan University, shanghai 200433 CHEN, Ming-QinCenter of Analyses and Measurements, Fudan University, shanghai 200433 department of Chemistry Fudan University Shanghai 200433 Center of Analyses and Measurements Fudan University Shanghai 200433

(n-Bu_4N)_3W_2Cl_9, prepared from K_3W_2Cl_9, can be readily converted to a series of [W(IV)]cluster compounds,W_3Cl_4(μ-OR)_2(OR')_2(R'OH)_2, including seven known compounds and two newcompounds with R=Me, R＇=i-Pr ... 详细信息

关键词： CI prepared from HONG Bo JIN Song-Lin Yih-Tong KU Studies on the alcohol exchange reactions of methoxide ditungsten Yi-Dong compound W2Cl4 n-Bu4N CH3OH Fudan University GU Cl IV

Characterization of Annealed, Proton Exchange Optical Waveguides in Y-cut MgO∶LiNbO3 Crystal

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Chinese Journal of Lasers 2000年第3期9卷 47-51页

作者： CAO Xia XIA Yuxing YANG Yi WANG Pinghe CHEN Xianfeng (department of Applied physics, shanghai Jiao Tong University, shanghai 200030, China) 上海交通大学上海

It is reported the results of a systematic study on planar w aveguides fabricated in Y-cut MgO∶LiNbO 3 crystal. The index profile of the as-exchanged waveguide can be modeled as a step-like one. It is deduced the diffusion coefficient and the activation energy for the proton exchange process. The surface index increases Δn e of around 0.127 after proton exchange can be reduced by post thermal annealing. The effects of the annealing on the index profile and guide depth were found not as fast as it does on a pure LiNbO 3 crystal.

关键词： proton exchange MgO∶LiNbO 3 crystal optical waveguides refractive index profile

Tolerance of Mice to Lipopolysaccharide is Correlated with Inhibition of Caspase-3-mediated Apoptosis in Mouse Liver Cells

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Acta Biochimica et Biophysica Sinica 2007年第2期39卷 96-100页

作者： Jie LUAN Bingrong ZHOU Hui DING and Zhongtian QI department of Microbiology,State Key Laboratory of Medical Immunology,Second Military Medical University,shanghai 200433,China department of Microbiology State Key Laboratory of Medical Immunology Second Military Medical UniversityShanghai 200433 China

Bacterial endotoxin lipopolysaccharide (LPS) often results in multiple organ ***,pre-exposure of mice to a sublethal dose of LPS renders the animal tolerant to a lethal dose of *** was designed to determine whether pre-exposure of a small dose of LPS was able to suppressapoptosis in mice when challenged with LPS in combination with D-galactosamine,and to investigate theexpression changes of the apoptosis-associated *** results showed that a characteristic apoptoticDNA fragmentation existed in mouse livers of the LPS-naive group,but not in control groups;and the miceof the LPS-naive group were all dead after 2 ***,in the LPS-tolerance groups,both the lethal rateand apoptotic DNA fragmentation were suppressed after the mice were challenged with LPS/D-galactosamine,and the protection against the lethality and apoptotic reaction could be maintained for up to 7 *** thisperiod, significantly lower levels of caspase-3 and its mRNA appeared in LPS-tolerant groups compared tothose of the LPS-naive group (P<0.05),and the caspase-3 activities gradually recovered as the observationwas *** findings suggest that LPS tolerance could suppress apoptosis in mouse liver cells,andthe expression and activity of caspase-3 could be down-regulated.

关键词： lipopolysaccharide endotoxin tolerance apoptosis caspase-3

Harmonic maps with potential from complete manifolds

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Chinese Science Bulletin 1998年第21期43卷 1780-1786页

作者： CHEN Qun Mathematics department, Central China Normal University, Wuhan 430079, China Institute of Mathematics, Fudan University, shanghai 200433, China Mathematics department Central China Normal University Wuhan China Institute of Mathematics Fudan University Shanghai China

Harmonic maps with potential from complete manifolds are considered. This is a new kind of maps more general than the usual harmonic maps relating to many interesting problems such as equilibrium system of ferromagnetic spin chain and Neumann motion. Aiming at the general properties, the author derives basic gradient estimates and then Liouville type results for these maps, which are interesting in constrast to those of the usual harmonic maps for the presence of potentials.

关键词： harmonic maps potential ferromagnetic chain gradient estimate.