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Search Results: 1 - 10 of 12616 matches for " Yangchao Luo "
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Antioxidant Activities and Inhibitory Effects of Auricularia Auricular and Its Functional Formula Diet Against Vascular Smooth Muscle Cell in Vitro  [PDF]
Yangchao Luo, Zhenlei Xiao, Qin Wang, Bo Li, Baoping Li
Food and Nutrition Sciences (FNS) , 2011, DOI: 10.4236/fns.2011.24038
Abstract: The functional formula diet AHP, containing polysaccharides from Auricularia auricular, polyphenolic compounds from Hawthorn (Crataegus) and Pueraria radix, has been recently developed as a dietary intervention against dyslipidemia in our previous study. In the present study, its antioxidant activities and protective effects against proliferation of vascular smooth muscle cells (VSMCs) were investigated. AHP possessed the potent radical-scavenging effects against hydroxyl and superoxide radicals, and also the inhibitory effects against peroxidation of low density lipoprotein induced by Cu2+ in vitro. The protective effects of AHP against proliferation of VSMCs were evaluated through the methodology of serum pharmacology. The serum containing AHP significantly inhibited the proliferation of VSMCs induced by oxidized low density lipoprotein in a time- and dose-dependent manner, and also promoted the nitric oxide production of VSMCs. Our study indicated that this functional formula diet would be a potent alternative as a functional diet to prevent atherosclerosis at early stage.
Anti-Money Laundering Regulation of China’s Mobile Payment and Settlement Industry  [PDF]
Yanwei Wang, Yangchao Ou
Open Journal of Social Sciences (JSS) , 2015, DOI: 10.4236/jss.2015.311033
Abstract: In recent years, with the continuous advance of payment equipment and technologies like China’s internet Finance, Big Data and Mobile Network, the anonymity, rapidity and cross-border transaction of mobile payment business have also brought many money laundering risks. Therefore, it is necessary to strengthen cooperation with the supervision organization of international payment and anti-money laundering business, and meanwhile to constantly improve the supervision mechanism of China’s payment and anti-money laundering business.
MaturePred: Efficient Identification of MicroRNAs within Novel Plant Pre-miRNAs
Ping Xuan,Maozu Guo,Yangchao Huang,Wenbin Li,Yufei Huang
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0027422
Abstract: MicroRNAs (miRNAs) are a set of short (19~24 nt) non-coding RNAs that play significant roles as posttranscriptional regulators in animals and plants. The ab initio prediction methods show excellent performance for discovering new pre-miRNAs. While most of these methods can distinguish real pre-miRNAs from pseudo pre-miRNAs, few can predict the positions of miRNAs. Among the existing methods that can also predict the miRNA positions, most of them are designed for mammalian miRNAs, including human and mouse. Minority of methods can predict the positions of plant miRNAs. Accurate prediction of the miRNA positions remains a challenge, especially for plant miRNAs. This motivates us to develop MaturePred, a machine learning method based on support vector machine, to predict the positions of plant miRNAs for the new plant pre-miRNA candidates.
Architecture of "Digital Earth"
“数字地球”的体系结构

LIQi,YANGChao Wei,YIShan Zhen,
李琦
,杨超伟

遥感学报 , 1999,
Abstract: 根据我们一年来对“数字地球”的研究,从地理信息与信息技术发展和信息化社会的角度出发,系统地介绍了“数字地球”涉及的研究内容、关键技术、应用前景等问题,比较客观地阐明了“数字地球”的相关内容。
Quantum Implementation of Unitary Coupled Cluster for Simulating Molecular Electronic Structure
Yangchao Shen,Xiang Zhang,Shuaining Zhang,Jing-Ning Zhang,Man-Hong Yung,Kihwan Kim
Physics , 2015,
Abstract: Quantum simulation represents an efficient solution to a certain classically intractable problem in various research area including quantum chemistry. The central problem of quantum chemistry is to determine the electronic structure and the ground-state energy of atoms and molecules. The exact classical calculation of the problem is demanding even for molecules with moderate size due to the "exponential catastrophe." To deal with such quantum chemistry problem, the coupled-cluster methods have been successfully developed, which are considered to be the current "gold standard" in classical computational chemistry. However, the coupled-cluster ansatz is built with non-unitary operation, which leads to drawbacks such as lacking variational bound of ground-state energy. The unitary version of the coupled-cluster methods would perfectly address the problem, whereas it is classically inefficient without proper truncation of the infinite series expansion. It has been a long-standing challenge to build an efficient computational scheme for the unitary coupled-cluster ansatz. Here we report an experimental realization of the unitary coupled cluster ansatz based on quantum simulation. The experiments are performed in a scalable platform containing a trapped multi-level \Yb ion for simulating the electronic structure of a molecular ion (HeH$^+$); we experimentally compute ground-state the energy curve and simulate chemical-bond softening non-perturbatively, which clearly shows the quantum implementation of the unitary coupled-cluster method yields better ground-states energies than classical implementations with truncations. Furthermore, the energy measurements, one most time consuming part in the experiments, can be parallelized. Our experimental results provide a new and solid evidence of how quantum simulation can advance the field of quantum chemistry.
A New Technique for Estimating the Lower Bound of the Trust-Region Subproblem  [PDF]
Xinlong Luo
Applied Mathematics (AM) , 2011, DOI: 10.4236/am.2011.24052
Abstract: Trust-region methods are popular for nonlinear optimization problems. How to determine the predicted reduction of the trust-region subproblem is a key issue for trust-region methods. Powell gave an estimation of the lower bound of the trust-region subproblem by considering the negative gradient direction. In this article, we give an alternate way to estimate the same lower bound of the trust-region subproblem.
Statistical Application in Economics  [PDF]
June Luo
Open Journal of Statistics (OJS) , 2012, DOI: 10.4236/ojs.2012.21013
Abstract: Statisticians have recently proposed some methods for ranking the gene variables with outlier expressions. The major attraction of these methods is their ability to select the variables which show systematic decrease or increase in only a subset of samples in the disease group. In order to fully account for the outliers, in this article, we truncate the expression values and propose an alternative method to rank the variables with systematic increase or decrease. The proposed statistic is very simple to implement. Simulations and real data study show that the proposed statistic has a more powerful ability to rank the variables than some methods in literature.
Measurement Method of Graviton Velocity and Thought on Correcting Lorentz Transformation——The Superluminal Neutrino’s Influence on Special Relativity and Other Physical Theories  [PDF]
Ping’an Luo
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.34042
Abstract: After discovery of the superluminal particle and consideration on development of contemporary physical theory research, also on the existing errors and omissions, the principle of constant light speed is found not a necessary condition in derivation of Lorentz Transformation; instead, this thesis proposes the velocity of graviton may feature superluminal, constant velocity in different directions, and independence of inertial reference frame speeds. This is an optional thought of correction. According serial hypothesis, an equation of graviton’s motion trace, i.e., the central curve of nebula density, is established for spiral galaxy. Thus we gain the method to measure velocity of graviton. If to totally avoid problem of limit speed, we have to search for independent of inertia frames, and relevant to space-time properties. Regarding current difficulties of singular points in the Theory of Limited Universe, this thesis points out that the document [1] is the best solution to these difficulties.
The Xinshu 新書 Reexamined: An Emphasis on Usability over Authenticity  [PDF]
Luo Shaodan
Chinese Studies (ChnStd) , 2013, DOI: 10.4236/chnstd.2013.21002
Abstract:
A collection of texts conventionally ascribed to Jia Yi 賈誼 (200-168 BC), the Xinshu 新書 has been subjected to an ages-long debate regarding its authenticity. The present study disclaims the discovery of any adequate evidence to prove the text trustworthy; but it finds the arguments for its forgery ill founded. Rather than present merely an account of this dilemma or attempt to corroborate either position in the debate, this paper argues against the approach in textual criticism that views early texts through a dualistic prism of authenticity vs. forgery. A case of forgery should be established upon no less concrete evidence than should one of authenticity. The mere lack of positive evidence can hardly be regarded or used as any negative evidence to disprove a text. Given the dilemma, the paper suggests treating the Xinshu nonetheless as a workable and even currently reliable source for our study of Jia Yi until that very day dawns upon us with any unequivocal evidence of its forgery detected or, better still, excavated.
FDI in Services and Manufacturing Efficiencies in Host Countries: Evidence from China  [PDF]
Libin Luo
iBusiness (IB) , 2013, DOI: 10.4236/ib.2013.53B037
Abstract:

The paper studies the correlations between FDI in services and manufacturing efficiencies in host countries. First a theoretical analysis is presented on the direct and indirect channels through which FDI in services enhances manufacturing efficiencies in host countries. Then the forward linkages and backward linkages between FDI in services and manufacturing sector in host countries are tested empirically using China’s industrial panel data. We find that FDI in services has positive forward and backward linkage effects on China’s manufacturing sector, with forward linkages stronger than backward linkages, and the wholesale, retail, trade and restaurant sector has the strongest linkage effects.

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