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Chinese Journal of Structural Chemistry 2018年第7期37卷 1037-1044页

作者： Fuzhou 350007 China） College of Chemistry and Materials Science Fujian Normal University College of Electronics and Information Science Fujian Jiangxia University State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Using density functional theory（DFT） combined with nonequilibrium Green＇s function investigates the electron-transport properties of several molecular junctions based on the PBTDT-CH=NH molecule, which is modified by one to four alkyl groups forming PBTDT-（CH2）nCH=NH. The electronic structures of the isolated molecules（thiol-ended PBTDT-（CH2）nCH=N） have been investigated before the electron-transport calculations are performed. The asymmetric current-voltage characteristics have been obtained for the molecular junctions. Rectifying performance of Au/S-PBTDT-CH=N-S/Au molecular junction can be regulated by introducing alkyl chain. The N3 molecular junction exhibits the best rectifying effect. Its maximum rectifying ratio is 878, which is 80 times more than that of the molecular junction based on the original N molecular junction. The current-voltage（I-V） curves of all the sandwich systems in this work are illustrated by transmission spectra and molecular projection density analysis.

关键词： the first principle phenyl benzothiophene alkyl chain rectification

Gowers-Maurey's space and its conjugate space

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Chinese Science Bulletin 1997年第1期42卷 14-17页

作者： ZHONG HuaijieDepartment of Mathematics, Fujian Normal University, Fuzhou 350007, China Department of Mathematics Fujian Normal University Fuzhou China

RECENTLY Gowers and Maurey constructed the first example of Banach space containing no unconditional basic sequence. We denote this space by X_G, in this note. Using the results in ref. [1], some further studies and reconstructions of this space result in some satisfactory answers of a series of open questions in the Banach spaces theory. There is a general description about this remarkable development. Just as indicated in ref. [1], the most important characteristic of the Banach space X_G

关键词： hereditarily indecomposable space quotient hereditarily incompoundable space Riesz operator.

Some G-M-type Banach spaces and K-groups of operator algebras on them

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Science China Mathematics 2004年第3期47卷 372-392页

作者： ZHONG Huaijie CHEN Dongxiao CHEN Jianlan Department of Mathematics, Fujian Normal University, Fuzhou 350007, China Department of Mathematics Fujian Normal University Fuzhou China

By providing several new varieties of G-M-type Banachspaces according to decomposable and compoundable properties, this paper discusses the operator structures of thesespaces and the K-theory of the algebra of the operators on these G-M-type Banach spaces throughcalculation of the K-groups of the operator ideals contained in the class of Riesz operators.

关键词： incompoundable Banach space, radical operator ideal, Banach algebra, K-theory.

Symmetric Lévy Type Operator

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Acta Mathematica Sinica,English Series 2009年第1期25卷 39-46页

作者： Jian WANGSchool of Mathematical and Computer Science, Fujian Normal University,Fuzhou 350007, P. R. China School of Mathematical and Computer Science Fujian Normal University Fuzhou P. R. China

The study of symmetric property in the L^2-sense for the non-positive definite operator is motivated by the theory of probability and analysis. This paper presents some sufficient conditions for the existence of symmetric measure for Lévy type operator. Some new examples are illustrated. The present study is an important step for considering various ergodic properties and functional inequalities of Lévy type operator.

关键词： Lévy type generator symmetric measure

A NEW FAMILY OF TRIVALENT CAYLEY NETWORKS ON WREATH PRODUCT Z_m■S_n

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Journal of Systems Science & Complexity 2006年第4期19卷 577-585页

作者： Shuming ZHOU Key Laboratory of Network Security and Cryptology(Fujian Normal University),Fujian Province University,Fuzhou,350007 College of Mathematics and Computer Science,Fajian Normal University,Fuzhou,350007,China. Key Laboratory of Network Security and Cryptology (Fujian Normal University) Fujian Province University Fuzhou College of Mathematics and Computer Science Fujian Normal University Fuzhou China

We propose a new family of interconnection networks （WGn^m） with regular degree three. When the generator set is chosen properly, they are isomorphic to Cayley graphs on the wreath product Zm ～ Sn. In the case of m ≥ 3 and n ≥3, we investigate their different algebraic properties and give a routing algorithm with the diameter upper bounded by [m/2]（3n^2- 8n ＋ 4） - 2n ＋ 1. The connectivity and the optimal fault tolerance of the proposed networks are also derived. In conclusion, we present comparisons of some familiar networks with constant degree 3.

关键词： Cayley graph connectivity diameter interconnection network routing

Synthesis and characterization of a strong-fluorescent Eu-containing hydrotalcite-like compound

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Science China Chemistry 2010年第6期53卷 1273-1280页

作者： CHEN Hong & ZHANG WenGong Institute of Polymer Science,College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China Institute of Polymer Science College of Chemistry and Materials Science Fujian Normal University Fuzhou China

A novel strong-fluorescent Eu-containing hydrotalcite-like compound (Eu-HTlc) was synthesized using the coprecipitation method,in which aluminum(III) was partially substituted by Europium (III) in the hydrotalcite-like layers,and thenoyltrifluoroacetone,1,10-phenanthroline were dispersed into the anions in the interlayer *** sample was characterized by XRD,XPS,FT-IR,ICP,TG-DSC,TEM and fluorescence spectra,and its composition and structure were *** results indicated that the sample exhibited a characteristic red light (614 nm).The fluorescent lifetime and fluorescence quantum yield of Eu-HTlc were measured to be respectively 893 -s and 66.44%,higher than those of Eu(III)-thenoyltrifluoroacetone1,10-phenanthroline complex [Eu(TTA)3phen].The result of TG-DSC measurement showed the enhanced thermal stability of Eu-HTlc compared with that of MgAl-LDHs and Eu(TTA)*** excellent photoluminescent property and thermal stability,low contents of rare earth ions and ligands,the Eu-HTlc may become one of the novel fluorescent materials with potential applications.

关键词： hydrotalcite-like compound Europium fluorescence intercalation supramolecule

Frequency hopping sequences based on d-form functions

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The Journal of China Universities of Posts and Telecommunications 2010年第4期17卷 58-62页

作者： KE Pin-hui,ZHANG Sheng-yuan Key Laboratory of Network Security and Cryptology,Fujian Normal University,Fuzhou 350007,China Key Laboratory of Network Security and Cryptology Fujian Normal University Fuzhou 350007 China

By using d-form function, a new construction of frequency hopping sequence with optimal Hamming correlation is presented in this article, which generalizes the results presented by Ding （2007）. Furthermore, a new class of non-power function style d-form function is proposed and an upper bound of the Hamming autocorrelation of the corresponding sequence is also derived.

关键词： frequency hopping sequence hamming correlation d-form function spread spectrum communication

On Polynomial Rings over a Ring with a Selfduality

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Acta Mathematica Sinica,English Series 1997年第4期13卷 571-576页

作者： Zhang Shenggui Department of Mathematics. Fujian Normal University. Fuzhou 350007. China 福建师范大学数学系福建福州

We prove that a ring R has a self dudlity induced by a left R-module M if and only if its polynomial ring R[x] has a graded self duality induced by a graded left R[x]-module M[x^-1].

关键词： Self duality Graded self duality

Relations between Lipschitz functions and convex functions

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Science China Mathematics 2005年第5期48卷 703-710页

作者： RUAN Yingbin Department of Mathematics, Fujian Normal University, Fuzhou 350007, China Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100080, China Department of Mathematics Fujian Normal University Fuzhou China Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China

We discuss the relationship between Lipschitz functions and convex functions. By these relations, we give a sufficient condition for the set of points where Lipschitz functions on a Hilbert space is Frechet differenti... 详细信息

关键词： Lipschitz functions convex functions the Frechet differentiability.

Chain Conditions for Skew Polynomial Modules

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Communications in Mathematical Research 1999年第2期 62-68页

作者： Shen Minghui and Xue Weimin (Department of Mathematics, Fujian Normal University, Fuzhou, Fujian, 350007)

§１．ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｒｏｕｇｈｏｕｔｔｈｉｓｐａｐｅｒＲｉｓａｎａｓｓｏｃｉａｔｉｖｅｒｉｎｇｂｕｔｎｏｔｎｅｃｅｓｓａｒｉｌｙｈａｓａｕｎｉｔｙ，ｈｉｓａｎｅｎｄｏｍｏｒｐｈｉｓｍｏｆａｌｅｆｔＲ－ｍ... 详细信息

§１．ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｒｏｕｇｈｏｕｔｔｈｉｓｐａｐｅｒＲｉｓａｎａｓｓｏｃｉａｔｉｖｅｒｉｎｇｂｕｔｎｏｔｎｅｃｅｓｓａｒｉｌｙｈａｓａｕｎｉｔｙ，ｈｉｓａｎｅｎｄｏｍｏｒｐｈｉｓｍｏｆａｌｅｆｔＲ－ｍｏｄｕｌｅＭ，ａｎｄｗｅｆｒｅｅｌ...

关键词： The Property (F) Skew Polynomial Module Skew Inverse Polynomial Module