Wenyu Deng
A5020705435- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- MXene and MAX Phase Materials
- Magnetic Properties of Alloys
- Neutrino Physics Research
- Magnetic properties of thin films
- Magnetic Properties and Applications
- Particle physics theoretical and experimental studies
- Multilevel Inverters and Converters
- Electromagnetic wave absorption materials
- Induction Heating and Inverter Technology
- Metal and Thin Film Mechanics
- Electric Motor Design and Analysis
- Magnetic and transport properties of perovskites and related materials
- Photonic and Optical Devices
- Hydrogen Storage and Materials
- Semiconductor Quantum Structures and Devices
- Metallurgical and Alloy Processes
- Thermochemical Biomass Conversion Processes
- Electric Power Systems and Control
- 2D Materials and Applications
- Radio Astronomy Observations and Technology
- Solar Thermal and Photovoltaic Systems
- Iterative Learning Control Systems
General Hospital of Shenyang Military Region
2020-2024
State Grid Corporation of China (China)
2023
Beijing Normal University - Hong Kong Baptist University United International College
2023
Jinan University
2023
University of Science and Technology Liaoning
2022
University of Utah
2004-2010
University of Minnesota
1995
The composition of Ultra High Energy Cosmic Rays (UHECR) is measured with the Resolution Fly's Eye cosmic ray observatory (HiRes) data using Xmax technique. Data were collected in stereo between 1999 November and 2001 September. are reconstructed well-determined geometry. Measurements atmospheric transmission incorporated reconstruction. detector resolution found to be 30 g cm^-2 13% Energy. elongation rate 10^18.0 eV 10^19.4 54.5 +/- 6.5 (stat) 4.5 (sys) per decade. This compared...
The High Resolution Fly's Eye (HiRes) experiment is an air fluorescence detector which, operating in stereo mode, has a typical angular resolution of 06 and sensitive to cosmic rays with energies above 1018 eV. HiRes cosmic-ray thus excellent instrument for the study arrival directions ultra-high-energy rays. We present results search anisotropies distribution on small scales (<5°) at highest (>1019 eV). based data recorded between 1999 December 2004 January, total 271 events 1019 No...
We have measured the cosmic ray spectrum at energies above $10^{17}$ eV using two air fluorescence detectors of High Resolution Fly's Eye experiment operating in monocular mode. describe detector, PMT and atmospheric calibrations, analysis techniques for detectors. fit to models describing galactic extragalactic sources. Our gives an observation a feature known as ``ankle'' near $3\times 10^{18}$ eV, strong evidence suppression $6\times 10^{19}$ eV.
Stereo data collected by the HiRes experiment over a six-year period are examined for large-scale anisotropy related to inhomogeneous distribution of matter in nearby universe. We consider generic case small cosmic-ray deflections and large number sources tracing distribution. In this tracer model expected flux depends essentially on single free parameter, typical deflection angle θs. find that with threshold energies 40 EeV 57 incompatible at 95% confidence level unless θs > 10° compatible...
Abstract A family of hexagonal in‐plane chemical ordering (Mo 2/3 R 1/3 ) 2 AlB ( = Tb, Dy, Ho, Er, Tm, and Lu) i ‐MAB phases are synthesized with R‐3m structure. The Tb to Tm considered have a nonlinear ferromagnetic‐like coupling magnetic ground state gradually weakened magnetocrystalline anisotropy due variant R‐R distances 4 f electrons. Their 2D derivatives (2D‐MBene) rare‐earth atom vacancies obtained by etching. delamination solvent, surface functional terminations, bond 2D‐MBene can...
Abstract A multistage pore‐structured porous carbon (AFPC) was created by employing protein as a widely available source and simple pretreatment, carbonization, KOH activation procedure. Based on the physical denaturation of protein, foam with self‐doped nitrogen from biomass successfully adding air to precursor. The AFPC‐600 exhibited BET surface area 443.52 m 2 g −1 an average pore diameter 35 nm. material demonstrated high electrical capacitance 798.5 F at current density 1 in...
A new, to our knowledge, optical method for small-angle measurement based on surface-plasmon resonance (SPR) is presented. In this the high sensitivity of phase SPR angle incidence employed improve resolution angle. Small-angle performed by monitoring shift resulting from minute change with use magneto-optical modulation. The validity demonstrated, and a 0.2 arc sec achieved experimentally.
Limitation in manufacturing tolerances and assembly imperfections are the source of asymmetrical stator axes (ASA) defect, particular, a vacuum dry pumps (VDP) where canned permanent magnet machines (CPMMs) with fractional slot concentrated winding (FSCW). The performance multi-physical field CPMM environment is vulnerable to ASA. This work provides comprehensive research on influence ASA for VDP. article establishes mathematical model Park transformation 1.6kW 6-pole/9-slot under condition....
In composite magnets, an in-depth understanding of magnetization reversal behaviors promotes optimizing the structure design a magnet and improving its performance. this work, perpendicular magnetic anisotropic Ta/La–Pr–Fe–B/Dy/La–Pr–Fe–B/Ta multilayers have been prepared by adjusting thickness Dy layer. The domain evolutionary procedure has investigated in different aspects including characterization morphology, micromagnetic analysis, irreversible distribution. It is confirmed that...
Canned induction motors fed by inverters are widely used in pharmaceutical, chemical, and nuclear fields. It is necessary to analyse the effect of time harmonic injected inverter on performance canned motor. However, existing researches consider motor separately, without analyzing reverse as a nonlinear active load harmonics inverter. Therefore, this paper establishes field-circuit coupling analysis model considering influence load, studies current under different conditions electromagnetic...
The microstructure, Curie temperature and magnetostriction of R(Fe1−xAlx)1.8 alloys (R=Dy0.65Tb0.25Pr0.1, x≤0.3) have been investigated using optical microscopy, x-ray diffraction, transmission electron probe microanalysis, positron annihilation technique, vibrating sample magnetometer, standard strain gauge technique. It was found that the are essentially single phase up to x=0.30. defects in decrease with increasing Al content when x≤0.1. decreases high applied magnetic fields, but it...
Magnetron sputtering systems are widely used for depositing industrially important coatings. Research has been conducted to optimize and improve these structures increase coating effectiveness target utilization. The paper investigates the engineering problem of uneven etching caused by an magnetic field in magnetron equipment. characteristics desired distribution required equipment analyzed, a corresponding excitation structure analytical model cylindrical proposed calculated. uniform...
MXene has shown great potential in electromagnetic interference (EMI) shielding field benefit due to its excellent conductivity and surface hydrophilicity. Vacancy-doped can be obtained by selectively etching Al Y of the 3D (Mo[Formula: see text]Y[Formula: text]) 2 AlC precursor. Introducing defects such as vacancy into reduce weight per unit volume realize lightweight. Herein, for first time, defect-containing Mo[Formula: text]C “paper” 3.5 [Formula: text]m thickness was tested materials,...
TiN/Al2O3 protective film layer was alternately deposited on the surface of sintered Neodymium Iron Boron (NdFeB) permanent magnet by magnetron sputtering technology, and effect different cycles morphology microstructure studied.At same time, performance explored for NdFeB in NaCl solution.The results show that increase number layers contributes to continuous improvement quality each layer, nucleation rate top increases, grains are refined, density continues increase, stress defects is also...
MXene has shown great potential in electromagnetic interference (EMI) shielding field benefit from its excellent conductivity and surface hydrophilicity. Vacancy-doped can be obtained by selectively etching Al Y of the 3D (Mo2/3Y1/3)2AlC precursor. Introducing defects such as vacancy into reduce weight per unit volume realize lightweight. Herein, for first time, defect-containing Mo1.33C ‘paper’ 3.5μm thickness were tested materials, showing promising results compared to other graphene-based...