Beijing, China
Beijing, China

Minzu University of China is a national-level university located in Haidian District, Beijing, China designated for ethnic minorities in China. Minzu University is the top university in China specially for ethnic minorities and aims to be one of the best universities of its kind in the world. With the strong support of Chinese government, it has developed rapidly over the years. It is currently one of the most prestigious universities in China in fields of ethnology, anthropology, ethnic economies, regional economics, religion studies, History, Dance and fine arts. The university has been selected as one of 38 national key universities to directly receive funding from Project 211 and Project 985, aspiring to build itself into a worldwide known leading university. It is commonly regarded as one of the most respected institutes for higher learning in China. It is colloquially known as Míndà in Putonghua. It was formerly known in English as the Central University for Nationalities . Wikipedia.


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He J.,Minzu University of China
Proceedings - 2016 9th International Symposium on Computational Intelligence and Design, ISCID 2016 | Year: 2017

This Bone X-ray images contain abundant texture information of bone trabeculae, high pass filter such as Butterworth filter can approach maintains and enhances trabecular bone texture combining histogram equalization, However, the biggest disadvantage of Butterworth high-pass filtering is an excessively slow operation speed. The newly proposed high-pass filtration algorithm based on spatial domain computation can quickly enhance trabecular bone texture in X-ray images. © 2016 IEEE.


Zhang Z.,Fujian Normal University | Yao Z.-Z.,Fujian Normal University | Xiang S.,Fujian Normal University | Xiang S.,Minzu University of China | Chen B.,University of Texas at San Antonio
Energy and Environmental Science | Year: 2014

It is emergent to reduce carbon dioxide emissions from fossil fuel combustion and thereby limit climate destabilization. In order to achieve the industrial scenario of CCS, there is a need for the discovery of better solid CO2 adsorbents that realize great improvement of selective capacity and stability to moisture as well as significant reductions in energy requirements and costs. In this review, we provide an overview of the current status of the emerging microporous metal-organic frameworks (MOFs) for the storage and separation of carbon dioxide. We summarize the main factors for CO2 capture performance of MOF materials under different working conditions, in comparison with those for zeolite materials. At the same time, we analyze the relationship among porous structures, pore/window sizes, capacity, selectivity and enthalpy of porous MOFs for CCS, which will give us clues for the design and synthesis of MOF materials as CO2 adsorbents. This journal is © the Partner Organisations 2014.


Feng S.,Minzu University of China | Wang Y.,Minzu University of China
Optics Express | Year: 2013

The novel all-optical unidirectional wavelength filters are studied by the finite-difference time-domain method, which are based on the twodimensional square-lattice photonic crystal with the rectangular defects. Owing to the modes' match and mismatch between the defect and the adjacent waveguides, the unidirectional propagation of the fundamentalmode light beam resonant at a certain frequency is obtained. Through merely altering the coupling region between the defect and the input waveguide, a unidirectional dual-branch waveguide filter is designed. This kind of devices has both the abilities of wavelength filtering and unidirectional light propagation, and may be potentially applied in the future all-optical complex integrated circuits. ©2013 Optical Society of America.


Studies suggest that dysfunction of brain-derived neurotrophic factor (BDNF) is a possible contributor to the pathology and symptoms of Alzheimer’s disease (AD). Several studies report reduced peripheral blood levels of BDNF in AD, but findings are inconsistent. This study sought to quantitatively summarize the clinical BDNF data in patients with AD and mild cognitive impairment (MCI, a prodromal stage of AD) with a meta-analytical technique. A systematic search of Pubmed, PsycINFO and the Cochrane Library identified 29 articles for inclusion in the meta-analysis. Random-effects meta-analysis showed that patients with AD had significantly decreased baseline peripheral blood levels of BDNF compared with healthy control (HC) subjects (24 studies, Hedges' g=−0.339, 95% confidence interval (CI)=−0.572 to −0.106, P=0.004). MCI subjects showed a trend for decreased BDNF levels compared with HC subjects (14 studies, Hedges' g=−0.201, 95% CI=−0.413 to 0.010, P=0.062). No differences were found between AD and MCI subjects in BDNF levels (11 studies, Hedges' g=0.058, 95% CI=−0.120 to 0.236, P=0.522). Interestingly, the effective sizes and statistical significance improved after excluding studies with reported medication in patients (between AD and HC: 18 studies, Hedges' g=−0.492, P<0.001; between MCI and HC: 11 studies, Hedges' g=−0.339, P=0.003). These results strengthen the clinical evidence that AD or MCI is accompanied by reduced peripheral blood BDNF levels, supporting an association between the decreasing levels of BDNF and the progression of AD.Molecular Psychiatry advance online publication, 26 April 2016; doi:10.1038/mp.2016.62. © 2016 Macmillan Publishers Limited


Plasmas are known as the most abundant form of matter in the Universe. Nowadays, with respect to the cosmic plasmas, considerable efforts have been put into investigating the experimentally relevant Korteweg-de Vries (KdV)-Burgers-type equations. In this letter, with plenty of experimental/observational support presented, symbolic computation on a general variable-coefficient KdV-Burgers equation is performed, which covers the models for a variety of the cosmic plasmas. An auto-Bäcklund transformation is constructed out, along with two families of the analytic solitonic solutions, for the electrostatic wave potential, perturbation of the magnitude of the magnetic field, fluctuation of electron or ion density, or radial-direction component of the velocity of ions or dust particles. Both our auto-Bäcklund transformation and solitonic solutions depend on the cosmic-plasma parameters by way of the nonlinearity, dispersion, dissipation and geometric-effect coefficient functions, as to the ion-acoustic, magnetoacoustic, electron-acoustic, positron-acoustic, dust-acoustic and quantum dust-ion-acoustic waves. The shock structures from our analytic investigation agree well with to those experimentally reported. Certain effects of a cosmic-plasma system, described by such variable coefficients, might be detected by the future plasma experiments/observations. Copyright © EPLA, 2015.


He X.,Minzu University of China
Zeitschrift fur Angewandte Mathematik und Physik | Year: 2011

This paper is concerned with the multiplicity and concentration of positive solutions for the nonlinear Schrödinger-Poisson equationswhere ε > 0 is a parameter, V:ℝ3 → ℝ is a continuous function and f{hook}: ℝ → ℝ is a C1 function having subcritical growth. The proof of the main result is based on minimax theorems and the Ljusternik-Schnirelmann theory. © 2011 Springer Basel AG.


Cheng W.,Minzu University of China
Proceedings - 2013 Wireless and Optical Communications Conference, WOCC 2013 | Year: 2013

In this paper, we present the end-to-end performance of a dual-hop cooperative system over independent non-identical composite Nakagami-lognormal (NL) fading channels using Mixture Gamma (MG) distribution. Novel closed-form expressions for the Probability density function (PDF) and the Moment-generation function (MGF) of the end-to-end Signal-to-noise ratio (SNR) are derived. Moreover, the average Symbol error rate (SER) and outage probability of the dual-hop cooperative system are found based on the above new expressions, respectively. Numerical and simulation results are shown to verify the accuracy of the analytical results. © 2013 IEEE.


In this paper, we present the end-to-end performance of a multi-node cooperative network over independent non-identical composite Nakagami-lognormal (NL) fading channels using Mixture Gamma (MG) distribution. Novel closed-form expressions for the Probability density function (PDF) and the Moment-generation function (MGF) of the end-to-end Signal-to-noise ratio (SNR) are derived. Moreover, the average Symbol error rate (SER) and outage probability of the multi-node cooperative network are found based on the above new expressions, respectively. Numerical and simulation results are shown to verify the accuracy of the analytical results. Compared with the generalized-K (KG) distribution, MG distribution is more available to approximate the NL distribution from two aspects of the expression complexity and the analytical accuracy in the performance analysis of cooperative networks. © 2013 ACADEMY PUBLISHER.


Nowadays, marine scientists are making use of the Kadomtsev-Petviashvili (KP)-category equations in their investigations from the Straits of Georgia and Gibraltar to the Adriatic Sea, North Sea and South China Sea. In fluid mechanics and other fields, the (3+1)-dimensional B-type KP equations have attracted a good size of recent research. For a generalized (3+1)-dimensional variable-coefficient B-type KP equation for the nonlinear waves in fluid mechanics, with symbolic computation, we obtain a variable-coefficient-dependent auto-Bäcklund transformation, along with two variable-coefficient-dependent families of the shock-wave-type solutions. © 2015 Elsevier Ltd.


Recent studies on the water waves have been impressive. Of current interest in fluid physics, Jiang et al. [J. Math. Phys. 51, 093519 (2010)] have reported certain soliton interactions along with binary-Bell-polynomial-type Bäcklund transformation and Lax pair for the (2 + 1)-dimensional Boiti-Leon-Pempinelli system for water waves. However, the story introduced by that paper can be made more complete, since in fluid physics and other fields, the variable-coefficient models can describe many physical processes more realistically than their constant-coefficient counterparts. Hereby, on a (2 + 1)-dimensional variable-coefficient Boiti-Leon-Pempinelli generalization, water-wave symbolic computation is performed. For the horizontal velocity of the water wave as well as the wave elevation, variable-coefficient-dependent auto-Bäcklund transformation is constructed out, along with some variable-coefficient-dependent shock-wave-type solutions. Relevant variable-coefficient constraints are also given, with respect to water waves. © 2015 AIP Publishing LLC.

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