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Cui S.,Xinyang Normal University
Journal of Computational and Theoretical Nanoscience | Year: 2017

Cross-cultural communication is a field of study that looks at how people from differing cultural backgrounds communicate. It is applied in college English teaching more and more. Cloud computing has an important value and significance to solve the problem of college education resource sharing and construction. The construction of cloud platform in universities is to integrate all sorts of educational resources and it can provide rapid and convenient resource storage, sharing, learning and computing services. In this paper we analyse the advantages of cloud platform in the college English teaching, further build a college network English teaching system based on cloud computing, and probe into the construction of an autonomous learning mode in the light of the problems existing in across-cultural communication. Copyright © 2017 American Scientific Publishers.

Li L.,Xinyang Normal University
Journal of Computational and Theoretical Nanoscience | Year: 2017

As Chinese Olympic Games, National Games these large-scale sports meetings are now behind us; retirement situation of a group of senior athletes also becomes prevalent. Therefore, the paper carries out specific research on employment situation of Chinese retired athletes. The paper investigates retired athletes' current situations, and makes comparative analysis, finds that though Chinese retired athletes has acquired some subsidies materially, their life demands cannot be fully satisfied; evaluate on Chinese retired athletes comprehensive quality by discriminant analysis and comprehensive evaluation approach, think that Chinese athletes professional levels are very high but social skills and learning capacity in comprehensive quality are still to be improved, therefore suggest to arrange athletes of rather excellent techniques to participate in cultivation of teenager athlete; present relative opinions on Chinese future retired athletes' allocation, which is the protection of Chinese vulnerable groups in the background of harmonious development of Chinese socialism so that Chinese society can balanced, coordinated and sustainable move forward. Copyright © 2017 American Scientific Publishers.

Gao Y.,Xinyang Normal University
Journal of Physics B: Atomic, Molecular and Optical Physics | Year: 2017

We show that the detection sensitivity of a linear detector is lower bounded by some quantum limits. For the force sensitivity, which is relevant for atomic force microscopes, the lower bound is given by the so-called ultimate quantum limit (UQL). For the displacement sensitivity, which is relevant for detecting gravitational waves, a generalized lower bound that can overcome the usual UQL is obtained. © 2017 IOP Publishing Ltd.

Yang M.-H.,Xinyang Normal University | Han Z.-Q.,Dalian University of Technology
Nonlinear Analysis: Real World Applications | Year: 2012

In this paper, we study the existence and multiplicity results for the nonlinear SchrödingerPoisson systems -Δu+V(x)u+K(x)φ(x)u=f(x,u), in R 3,-Δφ=K(x) u2,in R 3. Under certain assumptions on V, K and f, we obtain at least one nontrivial solution for (*) without assuming the Ambrosetti and Rabinowitz condition by using the mountain pass theorem, and obtain infinitely many high energy solutions when f(x,·) is odd by using the fountain theorem. © 2011 Elsevier Ltd. All rights reserved.

Lu J.,Liaoning Normal University | Xu L.,Korea Astronomy and Space Science Institute | Xu L.,Dalian University of Technology | Liu M.,Xinyang Normal University
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2011

Kinematical models are constrained by the latest observational data from geometry-distance measurements, which include 557 type Ia supernovae (SNIa) Union2 data and 15 observational Hubble data. Considering two parameterized deceleration parameter, the values of current deceleration parameter q0, jerk parameter j0 and transition redshift zT, are obtained. Furthermore, we show the departures for two parameterized kinematical models from ΛCDM model according to the evolutions of jerk parameter j(z). Also, it is shown that the constraint on jerk parameter j(z) is weak by the current geometrical observed data. © 2011 Elsevier B.V.

Liu X.,Xinyang Normal University | Xie L.,Henan University of Technology | Li H.,Xinyang Normal University
Journal of Electroanalytical Chemistry | Year: 2012

A novel platform based on reduced graphene oxide and Au nanoparticles entrapped in chitosan/silica sol-gel hybrid membranes (RGO-AuNPs-CSHMs) was successfully constructed for the fabrication of biosensor. The hybrid membranes are prepared by cross-linking chitosan (CS) with 3-aminopropyltriethoxysilane (APTES), while the presence of RGO and AuNPs improved the conductivity of CSHMs. The morphologies and electrochemistry of the nanocomposite film were investigated by using scanning electron microscopy and electrochemical techniques including electrochemical impedance spectroscopy and cyclic voltammetry (CV), respectively. The results suggested that the modified electrode exhibited enhanced sensitivity towards the oxidation of dopamine (DA) and uric acid (UA). Well defined and separated oxidation peaks were observed by CV and differential pulse voltammetry. Linear calibration plots for the oxidation of DA and UA were obtained in the range of 1.0-200 μM for DA and 1.0-300 μM for UA. Detection limits of DA and UA were found to be 0.3-0.7 μM, respectively. In addition, the sensor was successfully applied for the determination of analytes urine samples using the standard adding method with recoveries of 94.2-106.0%. © 2012 Elsevier B.V. All rights reserved.

Kou H.,Wuhan Polytechnic University | Yang S.,Xinyang Normal University
Journal of Physical Chemistry C | Year: 2012

Band energetics of nanostructured Zn 2SnO 4 electrodes were determined with spectroelectrochemical measurements, and its trap states were investigated with electrochemistry. The flat band edges (E fb) of nanostructured Zn 2SnO 4 electrodes were highly dependent on pH of electrolyte and measured to be -0.60, -0.73, -0.85, -0.94, and -1.08 V vs saturated Ag/AgCl in 0.5 mol L -1 LiClO 4 of pH 3.0, 5.0, 6.9, 10.0, and 13.0, respectively, and followed the Nestain relationship of E fb = -0.49 - 0.046pH, V vs Ag/AgCl. The addition of acetate also changed the E fb. The E fb were measured to be -0.48, -0.54, -0.71, -0.86, and -1.03 V in 0.5 mol L -1 LiClO 4 and 1.0 mol L -1 NaAc of pH 4.0, 5.0, 7.0, 10.0, and 13.2, respectively, and followed a Nestian relationship of E fb= -0.25 - 0.060pH, V vs Ag/AgCl, very close to that reported by Wu and Alpuche-Aviles [J. Am. Chem. Soc.2009, 131, 3216]. The time-resolved currents at different applied potentials positive of flat band edge clearly indicate a trap-filling process. Trap state densities are also highly pH dependent. Total trap state densities of 2.79 × 10 15, 6.75 × 10 15, and 9.98 × 10 15 cm -2 were determined in 0.5 mol L -1 LiClO 4 solutions of pH 3.0, 6.9, and 13.0, respectively, with maximum located at -0.25 V, -0.30 V, and -0.60 V. The trap state densities of 4.17 × 10 15, 6.88 × 10 15, and 7.17 × 10 15 cm -2 were calculated in 0.5 mol L -1 LiClO 4 and 1.0 mol L -1 NaAc solutions of pH 4.0, 7.0, and 13.2, respectively. The results obtained from CVs are in good agreement with that obtained from the measurements of time-resolved currents, and the size of the peak potentials related to the trap states increases dramatically with an increase of pH, indicating that traps are mostly surface-related. © 2012 American Chemical Society.

Gao Y.,Xinyang Normal University
European Physical Journal D | Year: 2013

We investigate the effects of the initial correlation on the dynamics of open system in the exactly solvable pure dephasing model. We show that the role of the initial correlation come into play through a phase function and a weight factor, which would perform oscillations during time evolution, and find that the decoherence of a qubit coupled to a boson bath is more enhanced with respect to a spin bath in the short time. We also demonstrate that the trace distance between two states of a qubit can increase above its initial value, and that the initial correlation can provide another resource for the damply oscillation and revival of the entanglement of two qubits. We finally investigate the dependence of the crossover of decoherence from the dynamical enhancement to suppression under the bang-bang pulse control on the initial correlation and the statistics of the bath constituents. © 2013 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.

Huang K.-J.,Xinyang Normal University | Wang L.,Xinyang Normal University | Li J.,Xinyang Normal University | Liu Y.-M.,Xinyang Normal University
Sensors and Actuators, B: Chemical | Year: 2013

Layered MoS2-graphene composites were synthesized by a modified l-cysteine-assisted solution-phase method, and were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (TEM). The electrochemical properties of the nanocomposite film were investigated by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). Acetaminophen as model molecular was employed to study its electrochemical responses at the MoS 2-graphene modified electrode, which shows more favorable electron transfer kinetics than graphene modified glassy carbon and bare glassy carbon electrodes. This novel electrochemical sensor exhibits excellent analytical performance for acetaminophen detection with detection limit of 2.0 × 10-8 M (S/N = 3) and linear range of 0.1-100 μM. The superior electrochemical performances of MoS2-graphene composites are attributed to their robust composite structure and the synergistic effects between layered MoS2 and graphene, and it may hold great promise for electrochemical sensors and biosensors design. © 2013 Elsevier B.V.

Liu M.,Xinyang Normal University | Lu J.,Xinyang Normal University
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2011

Motivated by recent logarithmic entropy of Hořava-Lifshitz gravity, we investigate Hawking radiation for Kehagias-Sfetsos black hole from tunneling perspective. After considering the effect of self-gravitation, we calculate the emission rate and entropy of quantum tunneling by using Kraus-Parikh-Wilczek method. Meanwhile, both massless and massive particles are considered in this Letter. Interestingly, two types tunneling particles have the same emission rate Γ and entropy Sb whose analytical formulae are Γ=exp[Π(rin2-rout2)/2+Π/αlnrin/rout] and Sb=A/4+Π/αln(A/4), respectively. Here, α is the Hořava-Lifshitz field parameter. The results show that the logarithmic entropy of Hořava-Lifshitz gravity could be explained well by the self-gravitation, which is totally different from other methods. The study of this semiclassical tunneling process may shed light on understanding the Hořava-Lifshitz gravity. © 2011 Elsevier B.V.

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