Chenzhou, China
Chenzhou, China

Xiangnan University also as XNU, is a full-time public university affiliated with the Hunan Provincial Education Department. The university was formed by amalgamating the former Chenzhou Teachers’ College, Chenzhou Medicine College, Chenzhou Pedagogical Academy, and Chenzhou Teachers Training School. The campus cover an area of over 100 hectares with a building area of 460,000 square meters.Xiangnan University is a comprehensive university focusing on teachers training and medical education. It includes eight disciplines such as literature, science, medicine, education, management, engineering, economics, law, etc. Xiangnan University consists of 19 faculties and offers 30 Bachelor's degree programs . The university has also established 2 provincial key building disciplines, 3 provincial fine courses and 1 provincial key laboratory. There are over 15,000 full-time students enrolled from 27 provinces all over China, plus 5,000 adult learners. Wikipedia.

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Tian Y.,Xiangnan University | Bai Z.,Shandong University of Science and Technology
Computers and Mathematics with Applications | Year: 2010

In this paper, we consider the existence of solutions for a class of three-point boundary value problems involving nonlinear impulsive fractional differential equations. By use of Banach's fixed point theorem and Schauder's fixed point theorem, some existence results are obtained. © 2010 Elsevier Ltd. All rights reserved.

Chen F.,Xiangnan University | Nieto J.J.,University of Santiago de Compostela | Zhou Y.,Xiangtan University
Nonlinear Analysis: Real World Applications | Year: 2012

We present some results for the global attractivity of solutions for fractional differential equations involving RiemannLiouville fractional calculus. The results are obtained by employing Krasnoselskii's fixed point theorem. Similar results for fractional differential equations involving Caputo fractional derivative are also obtained by using the classical Schauder's fixed point theorem. Several examples are given to illustrate our main results. © 2011 Elsevier Ltd. All rights reserved.

Li H.-B.,Xiangnan University
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

The mol-ecule of the title compound, C19H15BrN 2O2, displays a pseudo-trans conformation about the N - N bond [C - N - N=C torsion angle = 164.7 (2)°]. The dihedral angle between the planes of the benzene ring and the naphthyl system is 70.1 (2)°. In the crystal, mol-ecules are linked into C(4) chains along the c axis by N - H⋯O hydrogen bonds.

Chen Y.,Xiangnan University
Hydraulic Engineering III - Proceedings of the 3rd Technical Conference on Hydraulic Engineering, CHE 2014 | Year: 2015

This paper takes urban landscape and the surrounding rural landscape as a whole study object, which is based on the present situation of rural and urban landscape of Chenzhou, and then it will carding the relations of rural-urban historical and cultural landscape systematically. Finally, bring up a historical and cultural landscape zone construction mode which including three methods listed below: the protection of a unique natural substrate, the shaping of three culture landscape chains, and the construction of four urban cultural landscape areas. © 2015 Taylor & Francis Group, London, UK.

In the present paper, some basic properties of prime filters in MTL-algebras are studied. By introducing some topological structures on the set of all prime filters and the set of all maximal filters, respectively, and by investigating the topological properties of them, we conclude that the set of all prime filters is a compact T0 topological space and the set of all maximal filters is a compact Hausdorff topological space. By studying the relation between valuations and filters in MTL-algebras, we prove that a MTL-algebra is homomorphic to a subalgebra of a MTL-cube over the set of all prime filters and illustrate that the Stone representation theorem of Boolean algebras is only a special case of fuzzy sets representation theorem of MTL-algebras. Thus the well-known Stone representation theorem of Boolean algebras is extended to MTL-algebras. © 2011 Elsevier B.V.

Chen F.,Xiangnan University | Zhou Y.,Xiangtan University
Computers and Mathematics with Applications | Year: 2011

In this paper, some attractivity results for fractional functional differential equations are obtained by using the fixed point theorem. By constructing equivalent fractional integral equations, research on the attractivity of fractional functional and neutral differential equations is skillfully converted into a discussion about the existence of fixed points for equivalent fractional integral equations. Two examples are also provided to illustrate our main results. © 2011 Elsevier Ltd. All rights reserved.

Liao F.,Central South University | Liao F.,Xiangnan University | Tang X.H.,Central South University | Zhang J.,Central South University
Zeitschrift fur Angewandte Mathematik und Physik | Year: 2015

This paper is concerned with the following elliptic system:(Formula presented.),where V and W are 1-periodic in x, and W(x,s,t) is super-quadratic in (Formula presented.) for some a, b > 0. By using a generalized linking theorem established by Li and Szulkin, we are able to obtain the existence of nontrivial solutions under some more generic assumptions on the nonlinearity. © 2014, Springer Basel.

Wu X.,Xiangnan University | Zhang J.-L.,Xiangnan University
International Journal of General Systems | Year: 2012

As knowledge blocks in databases are fuzzy and random patterns may emerge, we propose random fuzzy rough set models based on random fuzzy sets and fuzzy logic operators. We give some properties of random fuzzy rough set. We prove that the lower fuzzy measures and the upper fuzzy measures induced by lower approximation and upper approximation of fuzzy set are fuzzy belief measures and fuzzy plausibility measures, respectively, in particular, if a random fuzzy set degenerates a random fuzzy point set, then the lower fuzzy measures and upper fuzzy measures are fuzzy probability measures, and then the lower fuzzy measures and the upper fuzzy measures are exactly the infimum and supremum of the fuzzy probability measures induced by the selections of the random fuzzy set. We investigate the Gdel random fuzzy rough set model in detail, in which the implication operator is chosen as Gdel implication, and prove that a pair of fuzzy belief measure and fuzzy plausibility measure is induced essentially by the lower approximation and the upper approximation of a random fuzzy approximation space. © 2012 Taylor and Francis Group, LLC.

Chen F.,Xiangnan University
Computers and Mathematics with Applications | Year: 2012

In this paper, we give existence results for solutions of impulsive boundary value problems involving the Caputo fractional derivative of order α∈(0,1) by applying the coincidence degree theory. An example is also given to demonstrate our main result. © 2011 Elsevier Ltd. All rights reserved.

Chen X.G.,Xiangnan University
Information Technology Journal | Year: 2013

With the development of E-commerce, the E-commerce monitor system is very important and traditional web crawler can't support real-time monitoring for E-commerce web. To solve the problems, this study proposes the theme crawler and monitoring technology and research and realization of E-commerce monitor system. User can customize his own tasks, including search the website and search the theme. The system may monitor a website according to monitoring period that the user defined and the results are returned to the user immediately. And it uses ontology to describe the topic representation model and it can accurately describe the user requirements. This study presents a new evaluation model about the topic correlation based on information quality. The attribute keywords of the represented topic webpage are viewed as a sequence in the model and it indicates the difference between the theme webpage using information quality. The simulation results show that the method can not only analyze similarity of the web page for crawling fast and effectively, but also improve the efficiency of the theme crawler for crawling and it greatly improves the monitoring efficiency using the E-commerce monitor system. © 2013 Asian Network for Scientific Information.

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