Wei Shi

ORCID: 0009-0005-5453-4491
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About
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Research Areas
  • High-Voltage Power Transmission Systems
  • Smart Grid and Power Systems
  • Lightning and Electromagnetic Phenomena
  • Power Systems and Technologies
  • High voltage insulation and dielectric phenomena
  • Thermal Analysis in Power Transmission
  • Power Systems Fault Detection
  • HVDC Systems and Fault Protection
  • Integrated Circuits and Semiconductor Failure Analysis
  • Fire effects on ecosystems
  • Geoscience and Mining Technology
  • Electrical Fault Detection and Protection
  • Engineering Applied Research
  • Machine Fault Diagnosis Techniques
  • Welding Techniques and Residual Stresses
  • Advanced Sensor and Control Systems
  • Advanced Decision-Making Techniques
  • Pulsed Power Technology Applications
  • Gyrotron and Vacuum Electronics Research
  • Advanced Algorithms and Applications
  • Icing and De-icing Technologies
  • Advanced Sensor Technologies Research
  • Electrical Contact Performance and Analysis
  • Quantum Dots Synthesis And Properties
  • X-ray Diffraction in Crystallography

State Key Laboratory of Electrical Insulation and Power Equipment
2024-2025

Xi'an Jiaotong University
2001-2025

Soochow University
2004-2025

First Affiliated Hospital of Jiangxi Medical College
2025

Jiangxi University of Traditional Chinese Medicine
2025

China Electric Equipment Group (China)
2024

Wen's Food Group (China)
2024

Jingdezhen Ceramic Institute
2024

Shanghai University of Engineering Science
2022

Suzhou Research Institute
2022

With the development of information and communication technology, it has become possible to improve pharmacy management system (PMS) using these technologies. Our study aims enhance accuracy drug attribute classification recommend appropriate medications patient compliance treatment outcomes through use a semi-supervised learning method combined with artificial intelligence (AI) technology. This proposed that integrates various technologies such as PMS, electronic prescriptions, inventory AI...

10.1097/md.0000000000041601 article EN cc-by-nc Medicine 2025-03-07

Wide bandgap metal compound-based carrier-selective contacts have been intensively investigated for crystalline silicon (c-Si) solar cells. In this work, we develop the electron-selective contact tantalum oxynitride (TaOxNy) deposited via magnetron sputtering. The effect of deposition parameters (N2 concentration, power, and pressure) on optoelectronic properties TaOxNy is investigated. optimized film features a low work function 4.3 eV, wide 2.8 sheet resistance. surface passivation...

10.1063/5.0269841 article EN Applied Physics Letters 2025-03-01

Abstract Selecting a proper warehouse location serving to satisfy the demands of goods from certain business area is important successful retail business. However, large solution space, uncertain traffic conditions, and varying preferences impose great challenges on selection. Conventional approaches mainly summarize relevant evaluation criteria compile them into an analysis report facilitate rapid data absorption but fail support comprehensive joint decision‐making process in In this paper,...

10.1111/cgf.13996 article EN Computer Graphics Forum 2020-06-01

The stepped leader process in negative cloud-to-ground lightning plays a vital role protection analysis. As discharge usually presents significant branched or tortuous channels, the charge distribution along channels and stochastic feature of propagation were investigated this paper. density channel tip for each branch approximated by introducing correlation coefficients. In combination with geometric characteristics natural discharge, model was presented based on fractal theory. By...

10.1063/1.4895155 article EN Journal of Applied Physics 2014-09-09

High‐quality electron transport layer (ETL) is a prerequisite for high‐performance wide‐bandgap mixed‐halide perovskite solar cells (PSCs), which critical efficient perovskite/silicon tandem cells. Herein, an atomic deposited ZnO–SnO 2 bilayer ETL PSCs reported, featuring high uniformity and conformality over large area. The shows matched band alignment with extraction transport, lower nonradiative recombination. As result, champion power conversion efficiency of 18.1% achieved on the...

10.1002/solr.202201026 article EN Solar RRL 2022-11-30

At neutral-grounded substations, ferroresonance may happen upon switching a circuit breaker or disconnector due to the saturated magnetizing characteristics of bus PT. A systematical method is presented analyze and suppress phenomenon. The scheme for suppressing insert resistance, made from parallel-connected resistors, into PT's wye secondary circuit. For particular substation, it first studied theoretically whether can possibly happen; and, if so, theoretical critical resistance estimated...

10.1109/mper.2002.4311933 article EN IEEE Power Engineering Review 2002-12-01

At neutral-grounded substations, ferroresonance may happen upon switching a circuit breaker or disconnector, due to the saturated magnetizing characteristics of bus PT. In this paper, systematical method is presented analyze and suppress phenomenon. The scheme for suppressing insert resistance, made from parallel-connected resistors, into PT's wye secondary circuit. For particular substation, it first studied theoretically whether can possibly happen; if so, theoretical critical resistance...

10.1109/tpwrd.2003.813858 article EN IEEE Transactions on Power Delivery 2003-07-01

Rapid expansion of power system and the limitation transmission corridor resources have indispensably promoted development AC/DC hybrid lines on same tower under special situations, especially for ultra-high voltage systems being established in China. A model incorporating a double-circuit AC bipolar DC is proposed study. The lightning performance investigated based electro-magnetic transient program (EMTP) leader progression model, taking into account operating as well competition multiple...

10.1049/iet-gtd.2012.0308 article EN IET Generation Transmission & Distribution 2013-02-01

We experimentally demonstrate ultra-compact (<0.008mm2), 4-channel CWDM demultiplexers using silicon photonic contra-directional couplers. Flat-top passbands of 10nm, insertion loss lower than 1dB, and crosstalk -20dB have been obtained.

10.1364/cleo_si.2013.ctu3f.5 article EN 2013-01-01

The cold cathode magnetron is one of the most significant research areas in development magnetrons. Unlike thermionic magnetron, such a device capable to start up instantaneously, while featuring an excellent stability and reliability as compared with one. In this paper, we report on start-up performance four types magnetrons, i.e., barium-tungsten (Ba-W), Ba-W priming, Pd-Ba alloy, diamond coated cathodes. Based measured data, (3.5% weight) alloy was found be best for magnetron. This able...

10.1109/tps.2016.2585644 article EN IEEE Transactions on Plasma Science 2016-07-18

Recently, recycling of rare metals has been great interest because the rapid growth in their demands. Substance flow analysis (SFA) is a useful tool to figure out substance designated area. SFA sometimes used quantify potentials substances. However, few so far conducted for metals. In this paper, we focused on Dy and Japan. The end use was categorized into 4 groups; automobiles, electronic home appliances, factory automation voice coil motor, which were further subdivided 10 categories. We...

10.2320/jinstmet.74.758 article EN Journal of the Japan Institute of Metals and Materials 2010-01-01

Spatial harmonic magnetrons (SHMs) are effective microwave oscillation sources in short millimeter and terahertz regions. This paper presents the development of a miniaturized W-band SHM, which features small size, lightweight, high power, reliability. In design this first backward spatial wave π/2 -1 mode was used for beam-wave interaction. Then particle-in-cell code employed to analyze its characteristics, including dispersion, separation, field distribution, electron spokes. Based on...

10.1109/ted.2016.2569002 article EN IEEE Transactions on Electron Devices 2016-05-27

10.1016/s0022-0248(99)00616-8 article EN Journal of Crystal Growth 2000-02-01

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> In this paper, a new method called arbitrary-difference precise-integration (ADPI) algorithm is proposed to calculate the electromagnetic transients in single-phase nonuniform transmission line. The employs arbitrary difference space domain and precise integration time domain, respectively. It not only can create equations arbitrarily according characteristics of line but also remove...

10.1109/tpwrd.2008.919187 article EN IEEE Transactions on Power Delivery 2008-06-24

Islet transplantation (IT) is an established clinical therapy for select patients with type-1 diabetes. Clinically, the hepatic portal vein serves as site IT. Despite numerous advances in IT, limitations remain, including early islet cell loss posttransplant, procedural complications, and inability to effectively monitor grafts. Hence, alternative sites IT are currently being explored, subcutaneous space one potential option. When left unmodified, routinely fails promote successful...

10.1117/1.jbo.21.6.066003 article EN cc-by Journal of Biomedical Optics 2016-06-06

In the power system, 1/3 of load is by hydro-generating supply where its reliability important requirement. Rotor internal turn-to-turn short circuit a common fault in hydro-generators. It will cause serious damages if such faults are not handled properly time. For this reason, according to multi-loop method AC machines paper proposes mathematical model hydro-generators with inter-turn circuits field windings. The simulation for rotor winding on six poles hydro-generator carried out methods...

10.1109/icems.2011.6073346 article EN International Conference on Electrical Machines and Systems 2011-08-01

The upward leader is a key physical process of the progression model lightning shielding. inception mechanism and criterion need further understanding clarification. Based on discharge theory, this paper proposes critical electric field intensity stable (CEFISUL) characterizes it by valve conductor surface, EL, which basis new for leader. Through numerical simulation under various conditions, we verified that EL mainly related to radius, data fitting yields mathematical expression EL. We...

10.1063/1.4769378 article EN Physics of Plasmas 2012-12-01
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