Shaoguan, China

Shaoguan University

www.sgu.edu.cn
Shaoguan, China
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Guo H.,Shaoguan University | Ling W.,Guangdong Provincial Key Laboratory of Food
Reviews in Endocrine and Metabolic Disorders | Year: 2015

With the dramatically increasing prevalence of obesity and type 2 diabetes mellitus (T2DM) worldwide, there is an urgent need for new strategies to combat the growing epidemic of these metabolic diseases. Diet is an essential factor affecting the development of and risk for obesity and T2DM and it can either help or hurt. In searching for preventative and therapeutic strategies, it is therefore advantageous to consider the potential of certain foods and their bioactive compounds to reverse or prevent the pathogenic processes associated with metabolic disease. Anthocyanins are naturally occurring polyphenolic compounds abundant in dark-colored fruits, vegetables and grains. Epidemiological studies suggest that increased consumption of anthocyanins lowers the risk of T2DM. Many in vitro and in vivo studies also reveal an array of mechanisms through which anthocyanins could prevent or reverse obesity- and T2DM-related pathologies including promotion of antioxidant and anti-inflammatory activities, improvement of insulin resistance, and hypolipidemic and hypoglycemic actions. Here, we summarize the data on anthocyanin-mediated protection against obesity and T2DM and the underlying mechanisms. Further population-based and long-term human intervention studies are necessary to ultimately evaluate the use of anthocyanins for protection/prevention against the development of obesity and T2DM. © 2015 Springer Science+Business Media New York


Liu Y.,Shaoguan University
Science China: Physics, Mechanics and Astronomy | Year: 2013

We propose a potentially practical scheme to generate macroscopic W-type state of N atomic ensembles in cavity QED system consisting of N atomic ensembles trapped in N single-mode cavities connected by (N - 1) optical fibers. We show that the N-qubit W-type state of atomic ensembles can be realized with high success probabilities if the coulping strength of the cavity-fiber is much stronger than that of cavity-atom. We also show that both the growth of atomic number in each ensemble and the increase of the number of atomic ensembles can diminish the detrimental influence from dissipative processes. This idea provides a scalable way to an atomic-ensemble-based quantum network, which is plausible with current available technology. © 2013 Science China Press and Springer-Verlag Berlin Heidelberg.


Liu Y.,Shaoguan University
Science China: Physics, Mechanics and Astronomy | Year: 2013

We propose a potentially practical scheme for efficient generation of entanglement with two nitrogen-vacancy centers (NVC) coupled to a whispering-gallery mode cavity. By virtue of the virtual-photon-excitation, the entanglement with two separate NVC can be produced in a deterministic way. The required operations are very close to the capabilities of current experimental techniques. The effects of decoherence induced by the cavity decay and the atomic spontaneous decay are also investigated. © 2013 Science China Press and Springer-Verlag Berlin Heidelberg.


Guo H.,Shaoguan University
Journal of Nanoscience and Nanotechnology | Year: 2014

Chiral analysis is one of the most important/challenging analytical tasks due to the necessity for differentiation of very slight differences in the molecular configurations between chiral isomers. It consists of two processes, chiral recognition and signal transduction. Quartz crystal microbalance (QCM) holds a great promise for the next-generation sensors, due to its remarkable mass sensitivity, fast response, capable of online detection and low cost. It has been the focus of academic and practical research on chiral analysis during the last two decades. This review provides a detailed overview of recent advances made in chiral analysis based on QCM detection with regard to the recognition elements, which include synthetic macromolecules, molecular imprinting polymers (MIPs), proteins, amino acids and their derivatives, etc. The prospects of using QCM for chiral analysis are also put forward. © 2014 American Scientific Publishers All rights reserved.


Yao X.-S.,Shaoguan University
Dongli Gongcheng Xuebao/Journal of Chinese Society of Power Engineering | Year: 2011

Taking account of the effect of spin softening, the shaking, swing, torsion and coupled vibration of the wind turbine blade were studied under different rotational conditions. Results show that the blade vibration frequencies increase with rising rotating velocity, while spin softening results in decrease of the vibration frequencies. Spin softening has great influence on low frequency swing, but has little influence on other vibrating mode. With the variation of rotating velocity, various order vibration frequencies of blade change at different rates, during which coupled vibration may occur. In coupled vibration, shaking mode is contained in the torsion mode, and torsion mode is also contained in the shaking mode. Coupled vibration is generally more destructive.


Dong X.-Y.,Shaoguan University | Tang S.-Q.,Shaoguan University
Peptides | Year: 2010

Insulin-induced genes (Insigs) including Insig-1 and Insig-2, are proteins that mediate sterol regulation of sterol regulatory element-binding protein (SREBP) cleavage-activating protein (SCAP) and 3-hydroxy-3-methylglutaryl- coenzyme A reductase (HMG-CoA reductase). Insigs perform distinct tasks in the regulation of these effectors: they promote the endoplasmic reticulum (ER) retention of SCAP, but ubiquitin-mediated degradation of HMG-CoA reductase. Through these activities, Insig-1 and Insig-2 influence cholesterol metabolism, lipogenesis, and glucose homeostasis in diverse tissues such as adipose tissue and liver. In this article, we focus on the functions, expression and regulation, gene polymorphisms of Insigs, and their deficiency with diseases. © 2010 Elsevier Inc. All rights reserved.


Guo H.,Shaoguan University | Ling W.,Shaoguan University
Reviews in endocrine & metabolic disorders | Year: 2015

With the dramatically increasing prevalence of obesity and type 2 diabetes mellitus (T2DM) worldwide, there is an urgent need for new strategies to combat the growing epidemic of these metabolic diseases. Diet is an essential factor affecting the development of and risk for obesity and T2DM and it can either help or hurt. In searching for preventative and therapeutic strategies, it is therefore advantageous to consider the potential of certain foods and their bioactive compounds to reverse or prevent the pathogenic processes associated with metabolic disease. Anthocyanins are naturally occurring polyphenolic compounds abundant in dark-colored fruits, vegetables and grains. Epidemiological studies suggest that increased consumption of anthocyanins lowers the risk of T2DM. Many in vitro and in vivo studies also reveal an array of mechanisms through which anthocyanins could prevent or reverse obesity- and T2DM-related pathologies including promotion of antioxidant and anti-inflammatory activities, improvement of insulin resistance, and hypolipidemic and hypoglycemic actions. Here, we summarize the data on anthocyanin-mediated protection against obesity and T2DM and the underlying mechanisms. Further population-based and long-term human intervention studies are necessary to ultimately evaluate the use of anthocyanins for protection/prevention against the development of obesity and T2DM.


Peng J.,Shaoguan University
Quantum Information Processing | Year: 2016

In this paper I put forward a tripartite quantum operation sharing scheme with a five-qubit entangled state presented by Brown et al. (J Phys A 38:1119, 2005). I confirm the scheme security via analysis, expose its three features and compare my scheme with others from these aspects via discussions. Besides, I reveal the experimental feasibility of the scheme with the current technologies. © 2016 Springer Science+Business Media New York


Luo Z.,Shaoguan University
Procedia Engineering | Year: 2012

In view of the limitation of poor direction selectivity about 2-D wavelet transform and the problem of redundancy on contourlet transform, an iris texture feature extraction method based on wavelet-based contourlet transform (WBCT)for obtaining high quality features is proposed in the paper. Firstly, the preprocessed iris image is decomposed by WBCT, then calculating its energy, mean, standard deviation and Hu invariant moments of each subband of different scales and different directions, and taking them as the eigenvalues of iris image, finally, it tests on four iris image databases by using Euclidean distance. Experimental results show that the algorithm is simple and effective, and obtain better recognition performance. © 2011 Published by Elsevier Ltd.


Yao X.S.,Shaoguan University
Applied Mechanics and Materials | Year: 2013

Fatigue fracture of the intermediate shaft in a transmission was analyzed by finite element method.The solid model has advantages of centrifugal force and spin softening effects over beam models.The results show that the fatigue fracture of the shaft is mainly due to the torsional vibration,the stress stiffening and spin softening have strong influence on the bending vibration medes,and torsional vibration modes do not changed at different speeds.There is accounting for the effects by an adjustment of the stiffness matrix.By using of solid models,the vibration modes of the intermediate shaft were researched,then the model was optimized in order to avoid resonance. © (2013) Trans Tech Publications, Switzerland.

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