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Restoration method of characters on Jiagu rubbings based on Poisson distribution and fractal geometry

science china(Information sciences) 2010年第7期53卷 1296-1304页

作者： GU ShaoTong1,2,3. FENG GeFei1,2,3. MA XiaoHu1,2,4 & YANG YiMing1,2,3.1Institute of Linguistics, xuzhou normal university, xuzhou 221009,{3. 2Jiangsu college Key Lab of Linguistic sciences and Neuro-cognition Engineering, xuzhou normal university, xuzhou 221009,{3. 3.inguistic science college, xuzhou normal university, xuzhou 221009,{3. 4School of Computer science and Technology, Soochow university, Suzhou 215006,{3. Institute of Linguistics Xuzhou Normal University Jiangsu college Key Lab of Linguistic sciences and Neuro-cognition Engineering Xuzhou Normal University Linguistic science college Xuzhou Normal University School of Computer science and Technology

A scheme for character restoration of Jiagu rubbings based on Poisson distribution and fractal geometry is proposed in this paper. The distribution characteristics of the connected regions on Jiagu rubbings is analyzed, and all the connected regions are recognized according to differences between these and their mathematical expectations. Regions are recognized as noise regions and filled if the differences are negative, while stroke regions are reserved. The attributes of the character image edges on Jiagu rubbings are also analyzed. The fractal dimensions of the character edge of Jiagu rubbings are calculated by means of statistics. The feature points are obtained using the cosine of the angle between the two vectors of the point and the consecutive two points. Different compression transformations with weighted coordinates are performed on different strokes and segments of the characters so as to smoothen the character edge of Jiagu rubbings images. Experimental results show that our scheme could successfully clear noise regions and polish the character edge of Jiagu rubbings.

关键词： Jiagu rubbings Poisson distribution fractal geometry fractal dimension compression transformation character restoration

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Extremal problems on the Hua domain of the first type

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science china Mathematics 2005年第z1期48卷 343-354页

作者： SU Jianbing & YIN Weiping Mathematics Department, xuzhou normal university, xuzhou 221116, china Mathematics Department, Capital {3. university, Beijing 10003., china Mathematics Department Xuzhou Normal University Xuzhou China Mathematics Department Capital Normal University Beijing China

In this paper we study some extremal problems between the Hua domain of the first type and the unit ball.

关键词： extremal problem, Hua domain of the first type, minimal circumscribed Hermitian ellipsoid.

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Extremal problems on the generalized Hua domain of the first type

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Progress in Natural science:Materials International 2006年第4期16卷 352-358页

作者： SU Jianbing and YIN Weiping Department of Mathematics, xuzhou normal university, xuzhou 221116, china Department of Mathematics, Capital {3. university, Beijing 10003., china Department of Mathematics Xuzhou Normal University Xuzhou 221116 China National Natural science Foundation of china Department of Mathematics Capital Normal University Beijing 100037 China

Some extremal problems between the generalized Hua domain of the first type and the unit ball are studied. The extremal mapping and extremal value in explicit formulas are also obtained.

关键词： extremal problem generalized Hua domain of the first type minimal circumscribed Hermitian ellipsoid.

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Global existence and blow-up of solutions to a parabolic system with nonlocal sources and boundaries

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science china Mathematics 2007年第9期50卷 1251-1266页

作者： Ling-hua KONG~(1+) Ming-xin WANG~(2,3. 1 Department of Applied Mathematics,Dalian university of Technology,Dalian 116024,china 2 Department of Mathematics,Southeast university,Nanjing 210018,china 3.Department of Mathematics,xuzhou normal university,xuzhou 221116,china Department of Applied Mathematics Dalian University of Technology Dalian China Department of Mathematics Southeast University Nanjing China Department of Mathematics Xuzhou Normal University Xuzhou China

This paper deals with a semi-linear parabolic system with nonlinear nonlocal sources and nonlocal boundaries. By using super-and sub-solution techniques, we first give the sufficient conditions that the classical solution exists globally and blows up in a finite time respectively, and then give the necessary and sufficient conditions that two components u and ν blow up simultaneously. Finally, the uniform blow-up profiles in the interior are presented.

关键词： parabolic system nonlocal sources nonlocal boundary conditions blow-up set simultaneous blow-up uniform blow-up profile 3.K15 3.K65

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science china Mathematics 2004年第5期47卷 659-674页

作者： SHI Peihu & WANG MingxinDepartment of Mathematics, Southeast university, Nanjing 210018, china Department of Mathematics, xuzhou normal university, {3. 221116, china Department of Mathematics Southeast University Nanjing China Department of Mathematics Xuzhou Normal University Xuzhou China

This paper is devoted to study the classification of self-similar solutions to the quasilinear parabolic equations with nonlinear gradient termsu t = Δ(u m) - uq∣Δu∣ p withm ≥ 1,p,q > 0 andp +q >m. Form = 1, it is shown that the very singular self-similar solution exists if and only ifnq + (n +1)p 1, it is shown that very singular self-similar solutions exist if and only if 1

关键词： quasilinear parabolic equations, self-similar solutions, very singular solution, classification.

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science china(Life sciences) 2009年第8期52卷 780-788页

作者： YANG Bo1,YANG SuYong2,ZHAO Lun3.YIN LiuHua1,LIU Xu1& AN ShaSha1 1 Laboratory of Psychology,School of Sociology,china university of Political science and Law,Beijing 102249,china 2 National Key Laboratory of Cognitive Neurosciences and Learning,Beijing normal university,Beijing 100875,china 3.Institute of Language,xuzhou normal university,xuzhou 221116,china Laboratory of Psychology School of Sociology China University of Political Science and Law Beijing China National Key Laboratory of Cognitive Neurosciences and Learning Beijing Normal University Beijing China Institute of Language Xuzhou Normal University Xuzhou China

Inhibitory control dysfunction is regarded as a core feature in *** major objective of this study was to explore the time course of response inhibition in chronic heroin addicts and provide the neurophysiological evidence of their inhibitory control *** amplitudes and latencies of ERP components were studied in fourteen heroin addicts(mean duration of heroin use being(13.54±5.71) years(Mean±SD),average abstinence being((4.67±6.44) months)) and fourteen matched healthy controls with a visual Go/Nogo *** results showed that heroin addicts demonstrated significantly larger Go-N2 amplitudes which results in a decreased N2 Go/Nogo effect,but no statistically significant differences were found between heroin addicts and controls in *** ERP data suggest that fronto-central areas of heroin addicts were impaired during the inhibition process(200-3.0 ms) and over-activated to *** impaired early process might reflect an abnormal conflict monitoring process in heroin *** results consolidate the inhibitory control dysfunction hypothesis in chronic heroin users.

关键词： heroin addicts events-related potentials inhibitory control conflict monitoring response inhibition

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C^MC^N D-computable state

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science china(Physics,Mechanics & Astronomy) 2008年第9期51卷 1300-1307页

作者： LIU DongDong1,2 & DI YaoMin1 1 School of Physics & Electronic Engineering,xuzhou normal university,xuzhou 221116,china 2 School of Mathematics & Physics science,xuzhou Institute of Technology,xuzhou 221008,china School of Physics & Electronic Engineering Xuzhou Normal University Xuzhou China School of Mathematics & Physics science Xuzhou Institute of Technology Xuzhou China

The notions of D-computable state and D-concurrence are generalized to the CMCN system. A class of D-computable state on CMCN is given and the calculating method of the lower bound of D-concurrence is provided. Th... 详细信息

关键词： quantum entanglement entanglement of formation concurrence D-computable state

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Uniform blow-up profiles and boundary layer for a parabolic system with localized nonlinear reaction terms

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science china Mathematics 2005年第2期48卷 185-197页

作者： LI Huiling & WANG Mingxin Department of Mathematics, Southeast university, Nanjing 210018, china Department of Mathematics, xuzhou normal university, {3. 221116, china Department of Mathematics Southeast University Nanjing China Department of Mathematics Xuzhou Normal University Xuzhou China

This paper deals with the blow-up properties of the solution to a semilinear parabolic system with localized nonlinear reaction terms, subject to the null Dirichlet boundary condition. We first give sufficient conditions for that the classical solution blows up in the finite time, secondly give necessary conditions and a sufficient condition for that two components blow up simultaneously, and then obtain the uniform blow-up profiles in the interior. Finally we describe the asymptotic behavior of the blow-up solution in the boundary layer.

关键词： parabolic system, localized nonlinear reaction terms, blow-up profiles, boundary layer size.

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Synthesis and Crystal Structure of cis-Bis(3.hydroxy2-ethyl-4-pyranonato)dioxomolybdenum(Ⅵ)

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Chinese Journal of Structural Chemistry 2003年第5期22卷 573-576页

作者： LU Zai-Sheng② NIU De-Zhong LI Xiu-Ling (Department of university, xuzhou normal university, xuzhou 221009,{3.) Department of university Xuzhou Normal University

The complex MoO2(C7H7O3.2 has been prepared by the reaction of 3.hydroxy- 2-ethyl-4-pyranone with (NH4)6Mo7O244H2O. The single-crystal X-ray study shows that the coordination sphere about the molybdenum atom in the complex consists of six oxygen atoms arranged in a distorted octahedral geometry with the dioxo ligands in cis positions. The crystal is of monoclinic, space group P21/c with a = 8.3.68(2), b = 12.753.(4), c = 14.5443.4) ? b = 96.277(1), V = 1548.18(7) ?, Z = 4, C14H14O8Mo, Mr = 406.19, Dc = 1.743./cm3. m = 0.886mm-1, F(000) = 816, R = 0.0444 and wR = 0.1091 for 23.6 observed reflections with I>2s(I). The average Mo=O bond length is 1.695(4) ? The two ketonic oxygen atoms of the pyranone moieties are trans to the oxo ligands and the hydroxy oxygen atoms are trans to each other. The average MoO bond lengths are 2.248(4) ?for the ketone oxygens and 2.005(3. ?for the hydroxy oxygens. The average ligand bite angle of OMoO is 75.2(2) and the bond angle between two Mo=O is 105.1(2). The dihedral angle is 79.16(2)?between two chelate ring planes.

关键词： crystal structure molybdenum(VI) complex 3.hydroxy-2-ethyl-4-pyranone

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Synthesis of some three-qubit gates and their implementation in a three spins system coupled with Ising interaction

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science china(Physics,Mechanics & Astronomy) 2010年第4期53卷 664-671页

作者： WEI HaiRui, DI YaoMin & WANG Yan School of Physics & Electronic Engineering, xuzhou normal university, xuzhou 221116, china xuzhou normal university School of Physics &amp Electronic Engineering Xuzhou China (GRID:grid.411857.e) (ISNI:***)

The synthesis of the Toffoli gate, Fredkin gate, three-qubit Inversion-on-equality gate and D(α) gate, as well as their implementation in a three spins system coupled with Ising interaction are investigated. The sequences of the control pulse and the drift process to implement these gates are given. It is revealed that the implementation of some three-qubit gates in a circular spin chain is much better than in a linear spin chain, and every two measurements of the quantum computation complexity are not always consistent. It is significant to directly study the implementation of the multi-qubit gates and even more complicated components of quantum information processing without resorting to their synthesis.

关键词： three-qubit gate three spins system Ising interaction the sequences of control pulses and drift processes

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