A5101443966- earthquake and tectonic studies
- Seismology and Earthquake Studies
- Earthquake Detection and Analysis
- Machine Fault Diagnosis Techniques
- Seismic Waves and Analysis
- Seismic Imaging and Inversion Techniques
- Electric Motor Design and Analysis
- High-pressure geophysics and materials
- Magnetic Properties and Applications
- Industrial Technology and Control Systems
- Geophysics and Sensor Technology
- Advanced Sensor and Control Systems
- Multilevel Inverters and Converters
- Technology and Security Systems
- Acupuncture Treatment Research Studies
- Sensorless Control of Electric Motors
- Advanced Algorithms and Applications
- Gear and Bearing Dynamics Analysis
- Engineering Diagnostics and Reliability
- Higher Education and Teaching Methods
- Facial Nerve Paralysis Treatment and Research
- Advanced Machining and Optimization Techniques
- Computational Physics and Python Applications
- AI and Multimedia in Education
- QR Code Applications and Technologies
Guangzhou University of Chinese Medicine
2023-2024
Shaoyang University
2020-2023
University of South China
2004-2020
Twelfth Guangzhou City People's Hospital
2012
Shenzhen Polytechnic
2012
South China Agricultural University
2007
Ganzhou People's Hospital
2006
National University of Defense Technology
2002
Maximum torque per amper (MTPA) control can realize the minimum copper loss of induction motor, which is often applied below rated speed. In this paper, MTPA firstly extended from constant mode to apparent power and voltage mode, realizes motor in whole speed range. Firstly, paper establishes a MTPA-based nonlinear optimization problem Then, analyzed analytical expressions are obtained for three different modes. Finally, finite set-model predictive current adopted achieve fast stator...
Background From the end of 2019 to December 2023, world grappled with COVID-19 pandemic. The scope and ultimate repercussions pandemic on global health well-being remained uncertain, ushering in a wave fear, anxiety, worry. This resulted many individuals succumbing fear despair. Acupoint massage emerged as safe effective alternative therapy for anxiety relief. However, its efficacy was yet be extensively backed by evidence-based medicine. study aimed enhance clinical effectiveness acupoint...
Abstract To solve the problem of air gap eccentric fault traction motor, characteristic frequency is close to fundamental frequency, and decomposed affects each other, which easy cause spectrum aliasing. A reconstruction variational mode decomposition method proposed (reconstructed decomposition, RVMD); first all, construct stator current signal problem, find best number, obtain multiple modal functions, realize effective separation profile component signal. Then, function components with...
Although previous studies have suggested that meteorological factors are associated with Bell’s palsy, articles on this topic rare and the results inconsistent. We aim to reveal relationship between exposure different onset of severe palsy (SBP) daily data. A case-crossover study based time-series data was applied, minimum risk value each climatic factor set as reference value. fitted a distributed lag non-linear model (DLNM) which applied quasi-Poisson regression evaluate exposure-response...
A lot of adaptive signal decomposition methods have been applied for nonstationary DPMIG electrical signals as they are always affected by noise. Recently, to solve the problems former caused Gibbs phenomenon and calculation extremas when dealing with broadband such square sawtooth "sharp corners", mode (BMD) method was proposed application algorithm showed a good performance. The main idea BMD is searching in associative dictionary contains both narrowband using regulated differential...
Our previous study revealed that acupuncture may exhibit therapeutic effects on Alzheimer's disease (AD) through the activation of metabolism in memory-related brain regions. However, underlying functional mechanism remains poorly understood and warrants further investigation. In this study, we used resting-state magnetic resonance imaging (rsfMRI) to explore potential effect electroacupuncture (EA) 5xFAD mouse model AD. We found EA group exhibited significant improvements number platforms...
Limited by road and railway transportation conditions, the volume of large transformers cannot be increased indefinitely. For this reason, it is necessary to compress height transformer core for transportation. However, change size will cause problems such as uneven distribution leakage magnetic field, excessive loss changes in short-circuit impedance. Based on Magnet software, a three-dimensional transient field simulation analysis performance 500kV single-phase three-column yoke was...
In view of the fuzziness and uncertainty expert knowledge in fault diagnosis system for flexible manufacturing cell (FMC), this paper presents fuzzy production rule (FPR) representation storage using Petri nets (FPN) model, their reasoning mechanism algorithm implementation. Based on these, taking FFS-1500-2 FMC as an object, by acquiring PLC data online, analyzing logic relations each signal ladder-shaped graph hardware detail, especially combining information a multisensor condition...
Moment tensor inversion with single-
Model predictive current control, which inherits from vector control framework, is expected to become a promising strategy improve the dynamic performance of servo system because its simple structure and fast response.However, mismatch parameters will cause stator prediction errors, resulting in deterioration performance, increase steady-state error harmonic.To solve this problem, predictor proposed paper, construction principle introduce feedback mechanism discrete domain.Based on theory,...
Due to the limitation of transportation conditions, volume transformer cannot be increased indefinitely. Therefore, it is necessary disintegrate iron core for transportation. structural changes, magnetic field distribution may disordered and no-load loss too large. This paper, based on field-circuit coupled finite element, conducted three-dimensional transient electromagnetic simulation study performance a large-scale three-phase five-column disassembled transformer. The density, current...