Bowen Tang

University of Electronic Science and Technology of China

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Yuehang Xu

University of Electronic Science and Technology of China

Zhichao Shang

China University of Mining and Technology

Farid Akhtar

Luleå University of Technology

Peizhong Feng

China University of Mining and Technology

Zixuan Pang

Weijia Guo

Zhejiang A & F University

Baojing Zhang

China University of Mining and Technology

Xuewei Xu

China University of Mining and Technology

Jiazhen Lin

Northeastern University

Xiaodong Feng

China Electronics Technology Group Corporation

Cooperative Institutions

University of Electronic Science and Technology of China

China University of Mining and Technology

China Electronics Technology Group Corporation

China General Nuclear Power Corporation (China)

Shenzhen University

Chinese Academy of Sciences

Beijing Institute of Technology

Ministry of Industry and Information Technology

Harbin Institute of Technology

Nanjing University of Aeronautics and Astronautics

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Study on microstructure and mechanical properties of steel corrosion products in marine environment

Frontiers in Materials (2024)

Bowen Tang Wei Wang Haicheng Yang Haiwei Zhu

The microstructure and mechanical properties of steel corrosion products in marine environment are key parameters for developing the concrete corrosion-induced model. In this study, steel corrosion products from steel plates, concrete specimens with 10 mm and 20 mm covers, and cracked beams in Zhejiang province were sampled and analyzed. Initially, the microstructure of the steel corrosion products were determined by X-ray diffractometry (XRD), thermogravimetric analysis (TG), scanning electron microscopy (SEM), and energy-dispersive spectrometry (EDS). Subsequently, the mechanical properties of steel corrosion products including nanoindentation elastic modulus, hardness and instantaneous elastic modulus were measured by nanoindentation and consolidation experiments. This study holds potential for establishing the concrete corrosion-induced model and assessment of the concrete structure durability in marine environment.

10.3389/fmats.2024.1474315

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0.03-2.5 GHz High Linearity 10 W GaN Power Amplifier

2021 IEEE Asia-Pacific Microwave Conference (APMC) (2024)

Bowen Tang Qingzhi Wu Jinming Lai Bin Kong Yong Zhang

Linearity

10.1109/apmc60911.2024.10867730

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High-Resolution Simulation of the Near-Field Pollutant Dispersion in a Nuclear Power Plant Community with High-Performance Computing

Journal of Nonlinear Mathematical Physics (2024)

Bowen Tang Hao Wang Jianjun Xu Jiazhen Lin Xin Ma

Abstract This study aims to employ numerical simulations to understand the dynamics of wind fields and air pollutant dispersion in the proximity of a nuclear plant, situated within a specified urban environment. By leveraging computational fluid dynamics (CFD) combined with geographical information system (GIS) data, the research comprehensively models atmospheric interactions in terms of wind flow patterns, building-induced pressure variances, and pollutant trajectories. The computational domain extends over an area of $$8.8\,\textrm{km} \times 8.4\,\textrm{km}$$ 8.8 km × 8.4 km , vertically stretching to 0.5 km. The wind and pollutant distribution equations are discretized using the finite volume method, providing detailed insights into fluid interactions with urban topographies. Key findings highlight the profound influences of terrain, urban structures, and wind flow behavior on the dispersion of radioactive aerosols, shedding light on potential risks and safety protocols for nuclear plant environments.

10.1007/s44198-024-00171-7

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2–26.5 GHz GaN ultra‐wideband amplifier with over 2 W output power

Microwave and Optical Technology Letters (2024)

Wei Dai Bowen Tang Junting Lu Xiaodong Feng Yuehang Xu

Abstract A 2–26.5GHz broadband amplifier monolithic microwave integrated circuit (MMIC) based on the 0.15 μm GaN high electron mobility transistor process has been developed. The broadband amplifier adopts a two‐stage distributed amplifier cascade structure, which improves the gain of the broadband amplifier. Further, the capacitive coupling is used to improve the gain bandwidth product of the power amplifier. To improve the output return loss of the wideband amplifier, a tuning stub is introduced at the output of the circuit. The on‐wafer measurement results show that the amplifier has a gain greater than 18 dB, gain flatness less than ±1.4 dB, and saturated output power >35 dBm with a >13% power added efficiency in the whole band.

Wideband

10.1002/mop.34098

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A 2–6 GHz Single-chip Transceiver Front-End GaN MMIC for Electronic Warfare Application

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) (2021)

Bowen Tang Zhi‐Kang Lin Yuehang Xu

This article presents a single-chip transceiver frontend GaN MMIC operating at 2–6 GHz with high power handling capacity. The GaN MMIC integrates a power amplifier, a switch and a low-noise amplifier. A simple on-chip tuned inductance solution is proposed considering the resonance caused by the on-chip capacitance and the inductance induced by the bias bond-wire of the power amplifier to enhance wide-band design. To enhance the power capacity and isolation of transceiver, a topology of "one series and two in parallel" is proposed for switch, which shows more than 100W power handling capacity and 40 dB isolation. The transceiver MMIC demonstrated a 39 dBm of output power and a gain greater than 15 dB of the transmitting branch, the power added efficiency is 24-37% in the range of 2–6 GHz, the noise figure of the receiving branch is better than 3dB and the gain is greater than 15 dB over 1.5-5.5 GHz.

Transceiver

10.1109/imws-amp53428.2021.9643988

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Quantitative research of topological insulator based on mining and analysis model

Weiwei Li Wei Shen Bowen Tang Xingwen Suo Yang Yang

Topological insulator is a new material with unique quantum mechanical properties, which is insulating in the bulk energy state and metallic in the surface state. It can realize the high-speed transport of electrons without energy consumption, and it has good application prospect in electronics. In this paper, the quantitative and qualitative method based on different data analysis models is used to for topological insulator analysis. Firstly, the multi-source heterogeneous data analysis method is used to mine and analyze topological insulator from varied dimensional data. The analyzed elements are included by material preparation, theoretical verification, structural control, device and extended application. Secondly, bibliometric and patent analysis tools such as Citespace and Innography are used for quantitative analysis of topological insulator. The elements include technology timing, research hotspots, institution distribution and research team. Finally, expert evaluation method is used to analyze future trend and application prospects of topological insulator. The mining and analysis model will provide good value for evaluation and prospect of cutting-edge technologies, as well as future research.

Topological insulator

Topological data analysis

Qualitative analysis

10.1117/12.3023748

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Effect of Al variation on microstructure and properties of porous FeCoNiCrAlx high-entropy alloys synthesized via thermal explosion

Intermetallics (2025)

Bowen Tang Zhichao Shang Weijia Guo Zixuan Pang Farid Akhtar

Variation (astronomy)

High-Entropy Alloys

10.1016/j.intermet.2025.108687

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Rapid fabrication and corrosion behavior of 3D-porous Cu-Al-Si compounds via low-energy self-exothermic reaction

Journal of Alloys and Compounds (2024)

Zixuan Pang Zhichao Shang Xuewei Xu Weijia Guo Bowen Tang

Exothermic reaction

10.1016/j.jallcom.2024.177198

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Shape reconstruction of acoustic obstacle with linear sampling method and neural network

AIMS Mathematics (2024)

Bowen Tang Xiaoying Yang Su Mei Lin

<abstract><p>We consider the inverse scattering problem of reconstructing the boundary of an obstacle by using far-field data. With the plane wave as the incident wave, a priori information of the impenetrable obstacle can be obtained via the linear sampling method. We have constructed the shape parameter inversion model based on a neural network to reconstruct the obstacle. Numerical experimental results demonstrate that the model proposed in this paper is robust and performs well with a small number of observation directions.</p></abstract>

10.3934/math.2024664

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Rapid Fabrication and Corrosion Behavior of 3d-Porous Cu-Al-Si Compounds Via Low-Energy Self-Exothermic Reaction

Zixuan Pang Zhichao Shang Xuewei Xu Weijia Guo Bowen Tang

Exothermic reaction

10.2139/ssrn.4884866

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