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Calculation of the molecular exchanging energy of binary surfactants system on the surface monolayer of aqueous solution

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Science China Chemistry 2007年第4期50卷 468-475页

作者： WANG ZhengWu1 & YI XiZhang2.1 department of Food Sciences & Technology, School of Agriculture and Biology, shanghai jiao tong university, {2. 2.02.0, China 2.Institute of Theoretical Chemistry, Shandong university, Jinan 2.0100, China 1. department of Food Sciences & Technology School of Agriculture and Biology Shanghai Jiao Tong University Shanghai 200240 China 2. Institute of Theoretical Chemistry Shandong University Jinan 250100 China

By using the binary anionic/cationic surfactants system CH3(CH2.nOSO_3/CH3(CH2.nN+(CH3)3 as an ex-ample, the molecular exchanging energy (ε) of adsorption on the surface monolayer of aqueous solu-tion has been studied. ε can be obtained with two methods. One is from the relationship between ε and the molecule interaction parameter (β). This relationship is founded by considering that the adsorption of mixed surfactants on the surface monolayer of solution satisfies the dimensional crystal model condition under which β can be obtained by testing the surface tension of solution. The other is directly from the molecular structure of surfactants with the Lennard-Jones formula. The results for the studied system show that these two methods coincide well.

关键词： surfactant molecule exchanging energy dimensional crystal model

Prevention of pathological change and cognitive degeneration of Tg2.76 mice by inoculating Aβ_(1-15) vaccine

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Science China(Life Sciences) 2008年第8期51卷 743-750页

作者： HU JinJia1, LI GuoYing2. WANG HuaQiao3, LIN Xian3 & YAO ZhiBin3 1 department of Anatomy, Medical College of shanghai jiao tong university, {2. 2.002., China 2.department of Anatomy, Preclinical College, Guangdong university of Pharmacy, Guangzhou 510006, China 3 department of Anatomy, Zhongshan School of Medicine, Sun Yat-sen university, Guangzhou 510080, China 1. department of Anatomy Medical College of Shanghai Jiao Tong University Shanghai 200025 China 2. department of Anatomy Preclinical College Guangdong University of Pharmacy Guangzhou 510006 China 3. department of Anatomy Zhongshan School of Medicine Sun Yat-sen University Guangzhou 510080 China

This study aims to discuss the effect of preventing pathological changes and cognitive degeneration of Tg2.76 mice by inoculating the subunit fragment of Aβ ***-two Tg2.76 mice were randomly divided into four groups, each having eight mice:Group I, the control group, inoculated with adjuvants;Group II, the Aβ42.group, inoculated with Aβ42.vaccine;Group Ⅲ, the Aβ1―15 group, inoculated with Aβ1―15 vaccine;and Group IV, the Aβ36―42.group, inoculated with Aβ36―42.*** titer of the serum anti-body against Aβ42.Group II) was significantly higher than that of the control group(Group I), and a low level of antibodies could be detected in the brain homogenate in the three vaccine-inoculated *** water maze test showed that the Aβ42.group, Aβ1―15 group and Aβ36―42.group were obviously im-proved compared with the control *** cultured splenocytes sampled from each group were induced by Con A or their respective antigens, and the cell proliferation of the three vaccine-inoculated groups was significantly higher than that of the control *** the Aβ42.group, IL2.and IFN-γ were relatively low and IL4 and IL10 were relatively *** contrast, IL4 and IL10 were much higher in the Aβ1―15 group and IL2.and IFN-γ were much higher in the Aβ36―42.*** immunohistochemical test showed a large number of senile plaques in the brain cortex and hippocampus of the mice in the con-trol group, no senile plaque in the brain of the Aβ1―15 group and Aβ42.group mice, and a small number of senile plaques in the brain of the Aβ36―42.group *** results suggest that the subunit fragment of Aβ1―15 vaccine could prevent not only cognitive and behavioral degeneration but also Aβ deposition and formation of senile plaques in Tg2.76 mice.

关键词： Alzheimer’s disease β-amyloid peptide vaccine Tg2.76 mice senile plaque

Hamiltonian type Lie bialgebras

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Science China Mathematics 2007年第9期50卷 1267-1279页

作者： Bin XIN~(1+) Guang-ai SONG~2.Yu-cai SU~3 1 department of Mathematics,shanghai {2. tong university,shanghai 2.02.0,China 2.College of Mathematics and Information Science,Shandong Institute of Business and Technology,Yantai 2.4005,China 3 department of Mathematics,university of Science and Technology of China,Hefei 2.002.,China department of Mathematics Shanghai Jiao Tong University Shanghai 200240 China College of Mathematics Information Science Shandong Institute of Business Technology Yantai 264005 China department of Mathematics University of Science Technology of China Hefei 230026 China

We first prove that,for any generalized Hamiltonian type Lie algebra H,the first co- homology group H^1(H,H(?)H) is *** then show that all Lie bialgebra structures on H are triangular.

关键词： Lie bialgebra Yang-Baxter equation Hamiltonian Lie algebra 17B62 17B05 17B37 17B66

How random are matrix elements of the nuclear shell model Hamiltonian?

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Science China(physics,Mechanics & Astronomy) 2009年第10期52卷 1477-1481页

作者： SHEN JiaJie1 & ZHAO YuMing1,2.3,4 1 department of physics,{2. jiao tong university,{2. 2.02.0,China 2.Center of Theoretical Nuclear physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China 3 Nishina Center,Institute of Physical Chemical Research(RIKEN),Hirosawa 2.1,Wako-shi,Saitama 351-0198,Japan 4 CCAST,World Laboratory,Beijing 100080,China department of physics Shanghai Jiao Tong University Shanghai 200240 China Center of Theoretical Nuclear physics National Laboratory of Heavy Ion Accelerator Lanzhou 730000 China Nishina Center Institute of Physical Chemical Research (RIKEN) Hirosawa 2-1 Wako-shi Saitama 351-0198 Japan World Laboratory CCAST Beijing 100080 China

In this paper we study the general behavior of matrix elements of the nuclear shell model *** find that nonzero off-diagonal elements exhibit a regular pattern,if one sorts the diagonal matrix elements from smaller to larger *** correlation between eigenvalues and diagonal matrix elements for the shell model Hamiltonian is more remarkable than that for random matrices with the same distribution unless the dimension is small.

关键词： nuclear shell model geometry property linear correlation randomize

Parametric Analysis and Experimental Study on Local Flexibility of TY-Type Tubular Joints

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China Ocean Engineering 1996年第1期11卷 71-84页

作者： XuHantao Chen Bozhen HuYuren Pan Hao department of Naval Architecture and Ocean Engineering, shanghai jiao tong university (SJTU), {2. 2.0030 Professor, department of Naval Architecture and Ocean Engineering, shanghai jiao tong university (SJTU), {2. 2.0030 department of Naval Architecture and Ocean Engineering Shanghai Jiao Tong University (SJTU) Shanghai 200030

Loal flexibility of tubular joints has important effect on the static and dynamic behaviour of offshore platforms, therefore, the determination of it becomes an important research subject in the field of offshore engineering. In this paper, the local flexibility of TY-type tubular joints, which are widely used in offshore platforms, is calculated by using semi- analytical method. Based on the calculated results, parametric formulae for evaluating element in the local joint flexibility matrix of TY- type tubular joints are derived by regression. A test on PVC models of TY-type tubular joints to measure the local joint flexibility is also reported. A comparison of the results calculated from the parametric formulae presented in this paper with those measured from the model test shows that the parametric formulae are reliable. It is recommended that these formulae be used in the global structural analysis of offshore platforms.

关键词： parametric analysis off shore platform turbulent joint local flexibility experimental study

INFLUENCES OF NATURE FRIENDLY RIVERTRAINING WORKS ON BED LOAD TRANSPORT

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International Journal of Sediment Research 1999年第2期14卷 59-64页

作者： Zhi-Gang SHEN (department of Engineering Mechanics, shanghai jiao tong university, 2.02.0 {2., China)

Nature-friendly river training measures to restore streams to their natural appearance can significantly alter their hydraulic and bed load transport behavior. A systematic theory is however still lacking. By means of laboratory experiments the present paper discussed the initial motion of the bed sand as well as the bed load transport behavior of the rivers with nature-friendly bed works. An experimental formula, based on the dimensional analysis and the regression analysis of the flume data, was presented for the evaluation of bed load transport.

关键词： Nacre-friendly measures Flow resistance Competent velocity Bed load transport

Twisted exponential sums of polynomials in one variable

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Science China Mathematics 2010年第9期53卷 2395-2404页

作者： LIU ChunLei1,& LIU WenXin2.3 1department of Mathematics,shanghai {2. tong university,shanghai 2.02.0,China 2.0} of Fundamental Subject,Tianjin Institute of Urban Construction,Tianjin 300384,China 3School of Mathematical Sciences,Beijing Normal university,Beijing 100875,China 1. department of Mathematics Shanghai Jiao Tong University Shanghai 200240 China2. Department of Fundamental Subject Tianjin Institute of Urban Construction Tianjin 300384 China3. School of Mathematical Sciences Beijing Normal University Beijing 100875 China

The twisted T-adic exponential sums associated to a polynomial in one variable are *** explicit arithmetic polygon in terms of the highest two exponents of the polynomial is proved to be a lower bound of the Newton polygon of the C-function of the twisted T-adic exponential *** bound gives lower bounds for the Newton polygon of the L-function of twisted p-power order exponential sums.

关键词： exponential sum L-function Newton polygon

Studies of low-lying states of even-even Xe isotopes within the nucleon pair approximation

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Science China(physics,Mechanics & Astronomy) 2011年第S1期54卷 103-108页

作者： ZHANG LiHua1, JIANG Hui1,2.& ZHAO YuMin1,3,4 1Institute of Nuclear, Particle, Astrophysics and Cosmology, department of physics, shanghai jiao tong university, shanghai 2.02.0, China 2.chool of Arts and Sciences, shanghai Maritime university, shanghai 2.0135, China 3Center of Theoretical Nuclear physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China 4CCAST, World Laboratory, P.O. Box 8730, Beijing 100080, China 1. Institute of Nuclear Particle Astrophysics and Cosmology Department of Physics Shanghai Jiao Tong University Shanghai 200240 China2. School of Arts and Sciences Shanghai Maritime University Shanghai 200135 China3. Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator Lanzhou 730000 China4. CCAST World Laboratory P.O. Box 8730 Beijing 100080 China

We study the relevance of nucleon pairs with higher spins, in addition to spin-zero and spin-two pairs (i.e., S D pairs), in low-lying states of even-even Xe nuclei. By including those higher-spin pairs in our configuration, we recalculate energy level schemes, elec trical quadrupole moments, magnetic moments and electric quadrupole transition rates, for low-lying states of even-even 12.-142.e nuclei. The agreement between our calculated results and the experimental data is substantially improved in comparison with previous studies.

关键词： nucleon pair approximation shell model configuration space low-lying states

Rational Form Solitary Wave Solutions and Doubly Periodic Wave Solutions to (1+1)-Dimensional Dispersive Long Wave Equation

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Communications in Theoretical physics 2005年第6期43卷 975-982页

作者： WANG Qi CHEN Yong ZHANG Hong-Qing department of Applied Mathematics, Dalian university of Technology, Dalian 11602.. China department of Mathematics, Ningbo university, Ningbo 3152.1, China department of physics, shanghai jiao tong university, shanghai 2.0030, China department of Applied Mathematics Dalian University of Technology department of Mathematics Ningbo University department of physics Shanghai Jiao Tong University

In this work we devise an algebraic method to uniformly construct rational form solitary wave solutionsand Jacobi and Weierstrass doubly periodic wave solutions of physical interest for nonlinear evolution equations. Withthe aid of symbolic computation, we apply the proposed method to solving the (1+1)-dimensional dispersive long wavethe (1+1)-dmensional dispesive long wavedelliptic donbly periodc wave solutions as special cases.

关键词： elliptic equation rational expansion method rational form solitary wave solutions rational form Jacobi and Weierstrass doubly periodic wave solutions symbolic computation (1+1)-dimensional dispersive long wave equation