Xin Wang

Hefei University of Technology

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Baojiu Chen

Dalian Maritime University

Longjiang Deng

University of Electronic Science and Technology of China

Xiangping Li

Shandong University of Science and Technology

Jinsu Zhang

Dalian Maritime University

Sai Xu

Dalian Maritime University

Xizhen Zhang

Dalian Maritime University

Jianliang Xie

University of Electronic Science and Technology of China

Jiashi Sun

Dalian Maritime University

Haipeng Lu

National Engineering Research Center of Electromagnetic Radiation Control Materials

Liangjun Yin

University of Electronic Science and Technology of China

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University of Electronic Science and Technology of China

190

Chinese Academy of Sciences

179

National Engineering Research Center of Electromagnetic Radiation Control Materials

108

University of Chinese Academy of Sciences

Xi'an Jiaotong University

Tsinghua University

Harbin Institute of Technology

Zhejiang University

Jilin University

Tianjin University

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Light-induced vibration characteristics of free-standing carbon nanotube films fabricated by vacuum filtration

Journal of Applied Physics (2014)

Junying Li Yong Zhu Xin Wang Ning Wang Jie Zhang

In this paper, we fabricated carbon nanotube (CNT) films with different thickness by vacuum filtration method, and the films were separated from Mixed Cellulose Ester membranes with burn-off process. The thickness of CNT films with different concentrations of CNTs 50 mg, 100 mg, 150 mg, and 200 mg are 10.36 μm, 20.90 μm, 30.19 μm, and 39.98 μm respectively. The CNT bundles are homogeneously distributed and entangled with each other, and still maintain 2D continuous network structures after burn-off process. The optical absorptivity of the films is between 84% and 99% at wavelengths ranging from 400 nm to 2500 nm. Vibration characteristics were measured with the Fabry-Perot (F-P) interferometer vibration measurement system. CNT films vibrate only under the xenon light irradiating perpendicularly to the surface. Vibration recorded by Fabry-Perot interferometer is considered to be caused by the time-dependent thermal moment, which is due to the temperature differences of two sides of CNT films. The vibration frequency spectrums between 0.1 ∼ 0.5 Hz were obtained by the Fast Fourier Transform spectra from time domain to frequency domain, and showed a linear relationship with films thickness, which is in accordance with theoretical model of thermal induced vibration.

10.1063/1.4887804

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Citations (7)

Monte Carlo Dosimetric Study of the GZP 60Co Brachytherapy Source with Stainless Steel Applicator

International Journal of Radiation Oncology*Biology*Physics (2018)

Junxiang Wu P. Wang Xin Wang Shengwei Kang J. Li

Dose rate

10.1016/j.ijrobp.2018.07.1565

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ENHANCED ANISOTROPIC SCATTERING TARGETS IMAGING IN WIDE-ANGLE SAR

Progress In Electromagnetics Research C (2020)

Xin Wang Guiqing Chang C.-C. Chi

10.2528/pierc20072705

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Visible emission and energy transfer in Tb³⁺/Dy³⁺ co‐doped phosphate glasses

Journal of the American Ceramic Society (2020)

Yan Sun Fei Yu Meisong Liao Ju‐Ping Ma Xin Wang

Abstract In this work, we systematically study the spectroscopic properties of Tb 3+ /Dy 3+ co‐doped phosphate glasses in the visible spectral region and explore the sensitization role of Dy 3+ in the enhancement of visible fluorescence of Tb 3+ ions. Judd‐Ofelt parameters Ω 2 and Ω 4 /Ω 6 of the phosphate glass as host for Tb 3+ are calculated as 21.60 × 10 ‐20 cm 2 and 0.73, respectively, based on the measured spectral absorption. Multiple energy transfer (ET) routes from Dy 3+ to Tb 3+ and their efficiencies are characterized, and the enhanced fluorescence properties of Tb 3+ are investigated, including the emission spectral strength and the spontaneous emission lifetime as functions of Dy 3+ doping concentration. The efficient nonradiative ET processes between Dy 3+ and Tb 3+ allow a moderate concentration level of Tb 3+ to achieve favorably stronger spectral absorption at blue and ultraviolet wavelengths. Tb 3+ /Dy 3+ co‐doped phosphate glass shows promising potential for phosphors and lasing operation at visible wavelengths.

Phosphate glass

Ultraviolet

Visible spectrum

10.1111/jace.17391

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Citations (30)

The Structure and Magnetic Moment Study of Fe–Si–Al by First-Principles Calculation

IEEE Transactions on Magnetics (2015)

Yin Cui Gang Li Nan Zhang Xin Wang Jiangliang Xie

In general, the contribution to the reinforcement of the magnetism in the order-disorder transition of FeAl alloys depends on their Fe content and the order-disorder transition. However, the Fe ₇₅ Si ₁₅ Al ₁₀ alloys were investigated by means of first-principles calculation and experimental verification. We found that the mechanism of the magnetic moment (μ _m ) reinforcement is the exchange interaction of Fe atom with its nearest neighbor Fe atoms. In addition, the exchange interaction of Fe-Fe atoms is affected by internal stress, lattice distortion, the Fe content, and the position of nearest neighbor nonferrous atoms (Si and Al atoms). At the annealing temperature of 600 °C , the μ _m is the maximum value, as the ordered DO3 structure is transformed extremely.

Magnetism

10.1109/tmag.2015.2434940

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Citations (4)

Cuo Doping Sio2 for Enhancing Electron Transfer to Product C2h4 in Electrocatalytic Co2 Reduction

Ji Xu Weicong Xu Chao Liu Xin Wang

10.2139/ssrn.5108768

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Study on Algorithms for Prediction of Solid Propellant Rocket Motor Performance

Xin Wang Zhongqin Zhang

Abstract : This article introduces two predictive algorithms for the performance of solid propellant rocket motor. The emphasis is on the introduction of Time-Space Algorithm. The authors proposed a general two-dimensional grain calculation procedure in order to conduct the grain calculations. Therefore, the predictive algorithms for performance introduced by this article show generality. A comprehensive computer program for the aforementioned method has been written and applied to calculating the performance of three different solid rocket motors. The calculated results are consistent with those derived from experimental data.

Solid-fuel rocket

Generality

Rocket (weapon)

Performance Prediction

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The Study and Simulation on Effects of UHV access to Power Grid

Mengyao Zhang Xin Wang Min Li

The access of Ultra-High Voltage (UHV) line must have a great impact on security and stability of power grid.In this paper, to access a 1000kV UHAC line to a power grid, the stability and security of power grid are analyzed and a sensitivity method is proposed to solve the problem of threshold-crossing voltage.Firstly, it establishes the model of a power grid by using PSD-BPA software and makes analysis of power flow and N-1 static security of lines of 500kV and above.Secondly, by setting up three-phase short circuit malfunctions near the impact point of UHV grid and using the stable curve analysis tools, transient stability of power grid is analyzed.Thirdly, based on the analysis results of the security and stability above, the 220kV grid arises the problem of threshold-crossing voltage.Combined with the sensitivity analysis, a node voltage adjustment program is proposed to solve this problem.It calculates sensitivity value of the reactive power compensation for the threshold-crossing voltage nodes nearby and determines the amount of reactive power compensation.Combined with the methods of reactive power compensation for load nodes and transformer ratio adjustment, it adjusts the level of voltage to more reasonable threshold.Finally, the simulation on the PSD-BPA software proves that the program can effectively adjust the level of voltage to more reasonable range.

Power grid

10.2991/icaees-15.2015.213

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Magnetic Graphene-based Free-standing Composite Film for Electromagnetic Wave Absorption Applications

Kaiyu Yang Xin Wang Cunqing Ma

Carbon-based lightweight, thin, and self-standing composite film/paper could be a promising material for electromagnetic shielding applications because of their high flexibility, good electromagnetic properties, and high electrical conductivity.In this paper, a new-type composite of reduced graphene oxide (rGO) and Fe 3 O 4 nanoparticles (F-NPs) has been investigated for potential applications in electromagnetic microwave absorbing film.The results indicated that with increasing the loading of F-NPs in the films, the values of saturation magnetization increased, contributing to an enhanced permeability of rGO/F-NPs composite films, while the dielectric loss decreased corresponding to a low conductivity.A maximum reflection loss of -11.04 dB was obtained at 5.19 GHz for the composite with 100 mg graphene oxide and 200 mg F-NPs with a matching thickness of 3.0 mm, and the effective absorption bandwidth with reflection loss values less than -10 dB covered 2.8-8.6 GHz.

10.2991/icmmcce-17.2017.183

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High frequency magnetic properties of patterned FeCoSiB multilayer thin films on silicon substrate

Bulletin of the American Physical Society (2014)

Wenbin Zhu L. Zhang Huiyuan Zheng Xin Wang M. Li

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