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The Measurement and Modeling Analysis for Internet Users Behavior Properties EI
会议论文 | 2018 , 2018-January , 130-133 | 2017 International Conference on Computing Intelligence and Information System, CIIS 2017
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Abstract :

The paper reports internet media user behavior characteristics measurement modeling and a preliminary investigation into interpersonal communication in the social media. It addresses the potential need to reformulate current thinking about what influences the internet media has brought to social communication. We look particularly at some of the most potent forms of today's interpersonal communication-We-chat, Weixin, QQ, Facebook, Twitter etc. The media users behavior characteristics is measured and modeling to improve communications level. We explored motivation driving behavior in social media. The serial random event chain model is adapted to analysis the event correlation. The conclusion summarizes the highlight measure point that we still need the demand for original way of interpersonal communication. The study of user behavior characteristics in the social media is great significance for the public opinions, network marketing promotion and improving user experience. © 2017 IEEE.

Keyword :

Behavior characteristic Driving behavior Event correlation Inter-personal communications Measurement model Network marketing Social communications User experience

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GB/T 7714 Ren, Yijing , Ren, R. , Wang, W.R. . The Measurement and Modeling Analysis for Internet Users Behavior Properties [C] . 2018 : 130-133 .
MLA Ren, Yijing 等. "The Measurement and Modeling Analysis for Internet Users Behavior Properties" . (2018) : 130-133 .
APA Ren, Yijing , Ren, R. , Wang, W.R. . The Measurement and Modeling Analysis for Internet Users Behavior Properties . (2018) : 130-133 .
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Controlling straight line motion up to quantum levels by quantum measurements SCIE Scopus
期刊论文 | 2018 , 10 , 805-808 | RESULTS IN PHYSICS
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Abstract :

A classical charged particle moves along a straight line and interacts with a silver atom in its ground state fixed at the origin of coordinates through Biot-Savart coupling. If the silver atom initially lies in a spin superposition state of valence electron, in the co-moving reference frame the projected measurements of the spin of silver's valence electron along the z direction determine the moving direction of the charged particle. The projected measurements of that spin along the x or the y direction yield straight line motion versions of Schrodinger's cat state for the charged particle. When the spin coherence state of the silver atom suffers from its environment decoherence, as long as the silver atom's spin is entangled with the trajectories of the moving charged particle, the measurements on the silver atom's spin also yield the partial superpositions of different trajectories of the moving charged particle. It is possible to control mechanical motion up to quantum level by the means of quantum measurements.

Keyword :

Quantum measurement Straight line motion versions of Schrodinger's cat state

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GB/T 7714 Huang, Yong-Yi . Controlling straight line motion up to quantum levels by quantum measurements [J]. | RESULTS IN PHYSICS , 2018 , 10 : 805-808 .
MLA Huang, Yong-Yi . "Controlling straight line motion up to quantum levels by quantum measurements" . | RESULTS IN PHYSICS 10 (2018) : 805-808 .
APA Huang, Yong-Yi . Controlling straight line motion up to quantum levels by quantum measurements . | RESULTS IN PHYSICS , 2018 , 10 , 805-808 .
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Preparation of Entangled States Based on Strong Coupling Between Double Electron Spins and Nano-Mechanical Harmonic Oscillator EI
期刊论文 | 2018 , 38 (10) | Guangxue Xuebao/Acta Optica Sinica
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Abstract :

A scheme of strong coupling between the double electron spins and the quantized nano-mechanical harmonic oscillator is proposed based on the diamond nitrogen vacancy (NV) color center. A two-dimensional entangled state of two qubits is prepared by using the dissipative process of the nano-mechanical harmonic oscillator. The numerical simulation results show that, all the systems with different initial states can evolve to the target states with a high fidelity and a high entanglement. This scheme reduces the influence of the dissipation on the system evolution, has no requirement on the quality factors and reduces the experimental operation difficulty, which is proved to possess strong reliability and feasibility. © 2018, Chinese Lasers Press. All right reserved.

Keyword :

Dissipative process Entangled state Harmonic oscillators High-fidelity Nitrogen vacancies Quality factors Strong coupling System evolution

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GB/T 7714 Lu, Ruiqi , Ren, Ren , Hu, Xiaorui et al. Preparation of Entangled States Based on Strong Coupling Between Double Electron Spins and Nano-Mechanical Harmonic Oscillator [J]. | Guangxue Xuebao/Acta Optica Sinica , 2018 , 38 (10) .
MLA Lu, Ruiqi et al. "Preparation of Entangled States Based on Strong Coupling Between Double Electron Spins and Nano-Mechanical Harmonic Oscillator" . | Guangxue Xuebao/Acta Optica Sinica 38 . 10 (2018) .
APA Lu, Ruiqi , Ren, Ren , Hu, Xiaorui , Guo, Yaru , Xue, Dandan . Preparation of Entangled States Based on Strong Coupling Between Double Electron Spins and Nano-Mechanical Harmonic Oscillator . | Guangxue Xuebao/Acta Optica Sinica , 2018 , 38 (10) .
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Flexible modulation of electronic and magnetic properties of zigzag H-MoS2 nanoribbons by crack defects EI SCIE PubMed Scopus
期刊论文 | 2018 , 30 (28) | JOURNAL OF PHYSICS-CONDENSED MATTER
WoS CC Cited Count: 1 SCOPUS Cited Count: 1
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Abstract :

The effects of crack defects on electronic and magnetic properties of zigzag MoS2 nanoribbons are investigated systematically by first-principles calculations based on spin-polarized density functional theory. We find that not only the electronic and spin transport ability of zigzag MoS2 nanoribbons can be enhanced significantly by the armchair crack defects, but also their magnetism could be modulated flexibly by crack defects. Our study suggests that the introduction of crack defect is a feasible way to modulate the electronic and magnetic properties of zigzag MoS2 nanoribbons. We further propose that the crack defects may also provide a useful tool for improving the performance of devices.

Keyword :

spin density zigzag MoS2 nanoribbons electronic and magnetic properties modulation first-principles charge density crack defects

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GB/T 7714 Liu, Y. C. , Ren, H. T. , Gao, P. F. et al. Flexible modulation of electronic and magnetic properties of zigzag H-MoS2 nanoribbons by crack defects [J]. | JOURNAL OF PHYSICS-CONDENSED MATTER , 2018 , 30 (28) .
MLA Liu, Y. C. et al. "Flexible modulation of electronic and magnetic properties of zigzag H-MoS2 nanoribbons by crack defects" . | JOURNAL OF PHYSICS-CONDENSED MATTER 30 . 28 (2018) .
APA Liu, Y. C. , Ren, H. T. , Gao, P. F. , Zhang, Y. , Xia, M. G. , Zhang, S. L. . Flexible modulation of electronic and magnetic properties of zigzag H-MoS2 nanoribbons by crack defects . | JOURNAL OF PHYSICS-CONDENSED MATTER , 2018 , 30 (28) .
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Thermal conductivity of suspended few-layer MoS2 EI SCIE Scopus
期刊论文 | 2018 , 10 (6) , 2727-2734 | NANOSCALE
WoS CC Cited Count: 14 SCOPUS Cited Count: 6
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Abstract :

Modifying phonon thermal conductivity in nanomaterials is important not only for fundamental research but also for practical applications. However, the experiments on tailoring thermal conductivity in nanoscale, especially in two-dimensional materials, are rare due to technical challenges. In this work, we demonstrate the in situ thermal conduction measurement of MoS2 and find that its thermal conductivity can be continuously tuned to a required value from crystalline to amorphous limits. The reduction of thermal conductivity is understood from phonon-defect scattering that decreases the phonon transmission coefficient. Beyond a threshold, a sharp drop in thermal conductivity is observed, which is believed to be due to a crystalline-amorphous transition. Our method and results provide guidance for potential applications in thermoelectrics, photoelectronics, and energy harvesting where thermal management is critical with further integration and miniaturization.

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GB/T 7714 Aiyiti, Adili , Hu, Shiqian , Wang, Chengru et al. Thermal conductivity of suspended few-layer MoS2 [J]. | NANOSCALE , 2018 , 10 (6) : 2727-2734 .
MLA Aiyiti, Adili et al. "Thermal conductivity of suspended few-layer MoS2" . | NANOSCALE 10 . 6 (2018) : 2727-2734 .
APA Aiyiti, Adili , Hu, Shiqian , Wang, Chengru , Xi, Qing , Cheng, Zhaofang , Xia, Minggang et al. Thermal conductivity of suspended few-layer MoS2 . | NANOSCALE , 2018 , 10 (6) , 2727-2734 .
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Half-metallic ferromagnetism prediction in MoS2-based two-dimensional superlattice from first-principles SCIE Scopus
期刊论文 | 2018 , 32 (7) | MODERN PHYSICS LETTERS B
WoS CC Cited Count: 4 SCOPUS Cited Count: 4
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Abstract :

Half-metallic ferromagnetism (HMFM) has great potential application in spin filter. However, it is extremely rare, especially in two-dimensional (2D) materials. At present, 2D materials have drawn international interest in spintronic devices. Here, we use ab initio density functional theory (DFT) calculations to study the structural stability and electrical and magnetic properties of the MoS2-based 2D superlattice formed by inserting graphene hexagonal ring in 6 x 6 x 1 MoS2 supercell. Two kinds of structures with hexagonal carbon ring were predicted with structural stability and were shown HMFM. The two structures combine the spin transport capacity of graphene with the magnetism of the defective 2D MoS2. And they have strong covalent bonding between the C and S or Mo atoms near the interface. This work is very useful to help us to design reasonable MoS2-based spin filter.

Keyword :

first-principles graphene configurations Superlattice MoS2

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GB/T 7714 Wen, Yan-Ni , Gao, Peng-Fei , Xia, Ming-Gang et al. Half-metallic ferromagnetism prediction in MoS2-based two-dimensional superlattice from first-principles [J]. | MODERN PHYSICS LETTERS B , 2018 , 32 (7) .
MLA Wen, Yan-Ni et al. "Half-metallic ferromagnetism prediction in MoS2-based two-dimensional superlattice from first-principles" . | MODERN PHYSICS LETTERS B 32 . 7 (2018) .
APA Wen, Yan-Ni , Gao, Peng-Fei , Xia, Ming-Gang , Zhang, Sheng-Li . Half-metallic ferromagnetism prediction in MoS2-based two-dimensional superlattice from first-principles . | MODERN PHYSICS LETTERS B , 2018 , 32 (7) .
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Chaos Prediction of Fast Fading Channel of Multi-rates Digital Modulation Using Support Vector Machines EI CPCI-S Scopus
会议论文 | 2017 , 10603 , 783-790 | 3rd International Conference on Cloud Computing and Security (ICCCS)
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Abstract :

According to the support vector domain properties, the paper establishes vector domain predictive models of chaos channel as well as chaos phase trace of non-linear map, the chaotic fading channel model was established based on Takens phase space delay reconstructing theory. Self-learning makes error least upper bound of generalization model to be minimum. The non-linear higher dimension map was realized by the squares support vector domain. The future fading channel data was predicted from training data set. The predictive error changes with the increase of embed dimension to a constant. The experiment result indicates that the support vector domain needs little support vector with fast convergence rate. With the small sample and unknown probability density, the multi-path predictive series consisted with true value series in Doppler fast fading channel. Under the conditions of small sample, the predicted series is in concordance with the channel true value.

Keyword :

Communication network Interpersonal communication Chaos predictive Least square Support vector machines Fast fading

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GB/T 7714 Ren, Yijing , Ren, Ren . Chaos Prediction of Fast Fading Channel of Multi-rates Digital Modulation Using Support Vector Machines [C] . 2017 : 783-790 .
MLA Ren, Yijing et al. "Chaos Prediction of Fast Fading Channel of Multi-rates Digital Modulation Using Support Vector Machines" . (2017) : 783-790 .
APA Ren, Yijing , Ren, Ren . Chaos Prediction of Fast Fading Channel of Multi-rates Digital Modulation Using Support Vector Machines . (2017) : 783-790 .
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Spontaneous formation of non-uniform double helices for elastic rods under torsion SCIE Scopus
期刊论文 | 2017 , 381 (7) , 689-700 | PHYSICS LETTERS A | IF: 1.863
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Abstract :

The spontaneous formation of double helices for filaments under torsion is common and significant. For example, the reseatch on the supercoiling of DNA is helpful for understanding the replication and transcription of DNA. Similar double helices can appear in carbon nanotube yarns, cables, telephone wires and so forth. We noticed that non-uniform double helices can be produced due to the surface friction induced by the self-contact. Therefore an ideal model was presented to investigate the formation of double helices for elastic rods under torque. A general equilibrium condition which is valid for both the smooth surface and the rough surface situations is derived by using the variational method. By adding further constraints, the smooth and rough surface situations are investigated in detail respectively. Additionally, the model showed that the specific process of how to twist and slack the rod can determine the surface friction and hence influence the configuration of the double helix formed by rods with rough surfaces. Based on this principle, a method of manufacturing double helices with designed configurations was proposed and demonstrated. Finally, experiments were performed to verify the model and the results agreed well with the theory. (C) 2016 Elsevier B.V. All rights reserved.

Keyword :

Variational method Double helix Self-contact Non-uniform

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GB/T 7714 Li, Hongyuan , Zhao, Shumin , Xia, Minggang et al. Spontaneous formation of non-uniform double helices for elastic rods under torsion [J]. | PHYSICS LETTERS A , 2017 , 381 (7) : 689-700 .
MLA Li, Hongyuan et al. "Spontaneous formation of non-uniform double helices for elastic rods under torsion" . | PHYSICS LETTERS A 381 . 7 (2017) : 689-700 .
APA Li, Hongyuan , Zhao, Shumin , Xia, Minggang , He, Siyu , Yang, Qifan , Yan, Yuming et al. Spontaneous formation of non-uniform double helices for elastic rods under torsion . | PHYSICS LETTERS A , 2017 , 381 (7) , 689-700 .
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Modifying the Surface Properties of Iron Oxide Nanoparticles with Organic-Inorganic Shells EI SCIE Scopus
期刊论文 | 2017 , 17 (3) , 1957-1962 | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | IF: 1.354
WoS CC Cited Count: 1
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The synthesis, processing and characterization of first-ever-available Fe3O4@ Poly(cyclotriphosphazene-co-4,4'-sulfonyldiphenol)@Au(Fe3O4@ PZS@ Au) and Fe3O4@ PZS@ TiO2 nanocomposites have been studied here. Monodisperse Fe3O4 magnetic nanoparticles were synthesized and the core/shell Fe3O4@ PZS nanocomposites were prepared via coating the highly cross-linked stabilizer PZS obtained by the polycondensation of co-monomers hexachlorocyclotriphosphazene (HCCP) and 4,4'-sulfonyldiphenol (BPS). Furthermore, Fe3O4@ PZS@ Au and Fe3O4@ PZS@ TiO2 nanocomposites with well-defined core/shell/shell nanostructure were achieved by reducing HAuCl4 solution and hydrolysis of titanium tetrabutoxide (TBOT). The morphology, phase composition, and crystallinity of the as-prepared nanocomposites have been characterized by transmission electron microscopy (TEM) and powder X-ray diffraction (XRD). The magnetic properties of Fe3O4@ PZS@ Au and Fe3O4@ PZS@ TiO2 nanocomposites remain almost independent of addition coated particles. UV-vis absorption spectra of Fe3O4@ PZS@ Au nanocomposites shows blue-shift from 551 nm to 540 nm with increasing the thickness of Au-coating.

Keyword :

Fe3O4 Nanoparticles Fe3O4@ PZS@ Au Nanocomposites Polyphosphazene Fe3O4@ PZS@ TiO2 Nanocomposites

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GB/T 7714 Zhao, Zhongxia , Ren, R. , Li, Xuan et al. Modifying the Surface Properties of Iron Oxide Nanoparticles with Organic-Inorganic Shells [J]. | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY , 2017 , 17 (3) : 1957-1962 .
MLA Zhao, Zhongxia et al. "Modifying the Surface Properties of Iron Oxide Nanoparticles with Organic-Inorganic Shells" . | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 17 . 3 (2017) : 1957-1962 .
APA Zhao, Zhongxia , Ren, R. , Li, Xuan , Xu, Rongdong , Wu, Ziqiang , Wen, Liya et al. Modifying the Surface Properties of Iron Oxide Nanoparticles with Organic-Inorganic Shells . | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY , 2017 , 17 (3) , 1957-1962 .
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A method to calculate thermal conductivity of a nonperiodic system, bamboo Si1-xGex nanowire with axially degraded components EI SCIE
期刊论文 | 2017 , 90 (10) | EUROPEAN PHYSICAL JOURNAL B | IF: 1.536
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For a nonperiodic system, a bamboo Si1-xGex nanowire with axially degraded components, it is impossible to obtain its phonon dispersion relations through lattice dynamic or the first principle calculation. Therefore, we present a simple and available method to solve this problem. At first, the Si1-xGex nanowire with axially degraded component is divided into several sections according to its component distribution like bamboos' sections formed in the growth process. For each section with a given x value, we constructed a pseudo-cell to calculate its phonon dispersion relations. Thermal conductances of junctions and of each section are then calculated by the phonon mismatch model and the phonon transmission probability with diffusive and ballistic portions. The dependences of thermal conductivity on the length of each section and the gradient of degraded component between sections are presented. We studied thermal conductivity dependence on temperature, length and diameter of the Si1-xGex nanowire with axially degraded component. And we found kappa similar to l(0.8), in which the exponent 0.8 is ascribed to the competition between phonons ballistic and diffusive transport. Furthermore, thermal conductivities along axial (100), (110), and (111) directions are discussed in detail. The method provides a simple and available tool to study thermal conductivity of a non-period system, such as a quasiperiodic superlattice or a nanowire with axially degraded component.

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GB/T 7714 Xia, Minggang , Han, Jinyun , Cheng, Zhaofang et al. A method to calculate thermal conductivity of a nonperiodic system, bamboo Si1-xGex nanowire with axially degraded components [J]. | EUROPEAN PHYSICAL JOURNAL B , 2017 , 90 (10) .
MLA Xia, Minggang et al. "A method to calculate thermal conductivity of a nonperiodic system, bamboo Si1-xGex nanowire with axially degraded components" . | EUROPEAN PHYSICAL JOURNAL B 90 . 10 (2017) .
APA Xia, Minggang , Han, Jinyun , Cheng, Zhaofang , Zhang, Shengli , Li, Baowen . A method to calculate thermal conductivity of a nonperiodic system, bamboo Si1-xGex nanowire with axially degraded components . | EUROPEAN PHYSICAL JOURNAL B , 2017 , 90 (10) .
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