Chaohui Zhao

ORCID: 0000-0001-6474-5843
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About
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Research Areas
  • Electric Motor Design and Analysis
  • Magnetic Bearings and Levitation Dynamics
  • Sensorless Control of Electric Motors
  • Magnetic Properties and Applications
  • Microgrid Control and Optimization
  • Multilevel Inverters and Converters
  • Smart Grid Energy Management
  • Power Systems and Renewable Energy
  • Advanced Battery Technologies Research
  • Silicon Carbide Semiconductor Technologies
  • Magnetic Field Sensors Techniques
  • Pancreatic and Hepatic Oncology Research
  • Induction Heating and Inverter Technology
  • Advanced Sensor and Control Systems
  • Control Systems in Engineering
  • COVID-19 Clinical Research Studies
  • Industrial Technology and Control Systems
  • Industrial Automation and Control Systems
  • Neuroendocrine Tumor Research Advances
  • High-Voltage Power Transmission Systems
  • Advanced DC-DC Converters
  • Iterative Learning Control Systems
  • Diet and metabolism studies
  • Advanced Algorithms and Applications
  • HVDC Systems and Fault Protection

Shanghai Dianji University
2011-2025

Northwestern Polytechnical University
2025

Ministry of Industry and Information Technology
2025

New York University
2022-2025

Island Hospital
2022-2024

Emory University Hospital
2024

Smile Train
2023

Tianjin University of Technology
2022-2023

Office of Energy Efficiency and Renewable Energy
2022

Yangtze River Delta Physics Research Center (China)
2021

Abstract Real‐time, high‐precision X‐ray imaging is of critical importance in a wide range applications, from medical diagnostics to security screening. While lanthanide luminescent materials are among the most commonly used scintillators, achieving combination large‐area scalability, rapid response, and optimal performance remains challenging. Herein, perovskite‐inspired cerium halide nanocrystal scintillator presented with remarkable photoluminescence quantum yield approaching unity fast...

10.1002/adfm.202422959 article EN Advanced Functional Materials 2025-02-16

ABSTRACT The hybrid excitation generators combine the advantages of permanent magnet (PMGs) and electrically excited (EEGs), offering significant potential for power generation systems. However, there has been little research on operational mechanisms current I f voltage U with constant output ratio magnetic field modulation P FM to PM . This study uses a tangential concentrated parallel structure generator as an example construct field‐circuit coupled system model. working principle, phase...

10.1002/cta.4490 article EN other-oa International Journal of Circuit Theory and Applications 2025-02-21

Neoadjuvant therapy (NAT) is increasingly being used for pancreatic ductal adenocarcinoma (PDAC). This study investigates how NAT differentially impacts PDAC's carcinoma cells and the tumor microenvironment (TME). Spatial transcriptomics was to compare gene expression profiles in TME of 23 NAT-treated versus 13 NAT-naïve PDACs. Findings were validated by single-nucleus RNA sequencing (snRNA-seq) analysis. induces apoptosis inhibits proliferation coordinately upregulates multiple complement...

10.1038/s41698-025-00848-2 article EN cc-by-nc-nd npj Precision Oncology 2025-03-03

ABSTRACT The doubly fed differential linear active disturbance rejection control (DLADRC) in the speed loop of permanent magnet synchronous motor (PMSM) produces observation time lag due to bandwidth impact, which leads problem slower dynamic response and poorer performance system. To solve this problem, a controller PMSM based on series lead correction DLADRC (SLC‐DLADRC) is investigated paper. Firstly, modeled traditional LADRC reconstructed obtain improve Based DLADRC, phase unit...

10.1002/cta.4506 article EN other-oa International Journal of Circuit Theory and Applications 2025-03-05

Abstract Although glass scintillators hold great promise for high‐resolution X‐ray imaging, the practical application is often limited by thermodynamic instability, leading to uncontrolled glass‐to‐crystal transformations that degrade imaging resolution. Herein, a novel strategy presented synthesize (methyl(triphenyl)phosphonium) 3 EuCl 6 ((MTP) ) through dehydration of their crystalline precursors. The findings reveal process significantly enhances stability confining constituent ions...

10.1002/adma.202500925 article EN Advanced Materials 2025-04-01

Although many prior studies have found that landscape pattern significantly affects urban heat environment globally, the spatially heterogeneous in cooling effects of remains poorly understood. In addition, most previous only employed a single metric separately, without holistic consideration composition and configuration different landscapes. Taking one new “stove” cities China-Fuzhou City, Fujian Province, as an example, we principal component analysis (PCA) to synthesize comprehensive...

10.3390/land11020239 article EN cc-by Land 2022-02-05

Current sharing is a major problem for paralleling devices, which can affect the performance and reliability of devices. In this paper, factors leading to current unbalance in silicon carbide (SiC) MOSFETs are analyzed, especially circuit mismatch. A double pulse test based on SiC MOSFET established testing mismatch including common source stray inductance (Ls), switching loop (Ld) gate driver resistance (Rg). The experimental results verify influences caused by

10.1109/iciea.2017.8282906 article EN 2017-06-01

The short-circuit capability of power devices is one the key issues that related to reliability and safety Silicon Carbide (SiC) devices. Firstly, two types faults are introduced, mechanism current analyzed in detail. Then, influence different circuit parameters on characteristics SiC MOSFET under condition compared. factors influencing further revealed, providing a guidance for designing protection some extent.

10.1109/iciea.2017.8282866 article EN 2017-06-01

Abstract Background There is an urgent need to better understand the novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), for that disease 2019 (COVID-19) continues cause considerable morbidity and mortality worldwide. This paper was differentiate COVID-19 from other infectious diseases such as avian-origin influenza A (H7N9) (H1N1) virus infections. Methods We included patients who had been hospitalized with laboratory-confirmed infection by SARS-CoV-2 ( n = 83),...

10.1186/s40249-020-00781-5 article EN cc-by Infectious Diseases of Poverty 2020-12-01

The lack of sufficient mechanical stimulation to the human bone, results in disuse osteoporosis. Low-intensity pulsed ultrasound (LIPUS) promotes fracture healing and treatment osteoporosis, but its biomechanical mechanism remains unknown. Simulative research on effects LIPUS trabecular bone osteoblasts have been performed. von Mises stress obviously increased under irradiation. average were two orders magnitude higher irradiation simulant than that without irradiation, was positively...

10.1115/1.4056658 article EN Journal of Biomechanical Engineering 2023-01-11

Halbach array is a hot research topic for motor researchers in recent years. With the aid of finite element analysis method, traditional Halbach, uneven thickness and soft magnetic are compared studied under same amount permanent magnets. The air gap density, AC-DC axis inductance reluctance torque three arrays analyzed. simulation results show that has largest density but does not have torque. with nonuniform unequal smallest, generated due to AC DC axis. only larger also

10.1109/icaica50127.2020.9182625 article EN 2022 IEEE International Conference on Artificial Intelligence and Computer Applications (ICAICA) 2020-06-01

Osteoporosis occurs in astronauts after long-term space flight owing to the lack of gravity. The mechanical microenvironment osteocytes load-bearing bone are changed during resistance exercise, which prevents massive loss human body. A cylindrical fluid-structure coupling finite element model for osteons with a two-stage pore structure (i.e., Haversian canal, lacunar-canalicular system) was established software COMSOL. In Earth's gravity field and microgravity, considering effects pulsating...

10.1080/10255842.2022.2037130 article EN Computer Methods in Biomechanics & Biomedical Engineering 2022-02-16

To solve the problem of high harmonic in stator current Permanent-Magnet Synchronous Motor (PMSM), a suppression method combining Three-parameter Notch Filter (TNF) and Linear Active Disturbance Rejection Controller (LADRC) is proposed. First, loop controller adopts LADRC, extended state observer (LESO) used to estimate disturbance signal. The performance studied frequency domain. Second, TNF extract feedforward compensation signals specific frequency, which further weakens influence medium...

10.1016/j.egyr.2022.08.052 article EN cc-by-nc-nd Energy Reports 2022-08-18

Interior Permanent Magnet Synchronous Motor (IPMSM) significantly speed fluctuations under load change suddenly conditions. With the help of MATLAB/Simulink simulation software, a novel IPMSM loop control strategy is studied. A Fuzzy linear active disturbance rejection (Fuzzy-LADRC) controller designed, and LADRC parameters are dynamically adjusted by to reduce in this paper. Finally, dSPACE experimental platform used conduct simulations experiments. The results show that Fuzzy-LADRC has...

10.1016/j.egyr.2022.05.258 article EN cc-by-nc-nd Energy Reports 2022-06-09

To study the influence of magnitude excitation current on radial electromagnetic force wave tangential magnetizing parallel structure hybrid synchronous motor (TMPS-HESM) under different working conditions. Firstly, basic and rotor magnetic circuit model is introduced. Secondly, considering current, Maxwell stress tensor method used to analyze source, frequency order that has a great vibration are qualitatively obtained. Then, three-dimensional finite element calculate variation law when...

10.3233/jae-230016 article EN International Journal of Applied Electromagnetics and Mechanics 2024-02-06

The analysis of electromagnetic (EM) force waves in rotor magnetic shunt hybrid excitation synchronous motor (RMS-HESM) under direct current (DC) has received limited attention from researchers, despite its crucial importance for the electric vehicle industry and significant role optimizing noise, vibration, harshness design. This paper investigates EM RMS-HESM DC across multiple operating conditions detail. Firstly, fundamental structure was briefly introduced, an equivalent circuit model...

10.1109/jsen.2024.3405979 article EN IEEE Sensors Journal 2024-06-04

The rotor magnetic shunt structure hybrid excitation synchronous motor (RMS-HESM) has been widely used in marine propulsion due to its advantages of low loss and high efficiency. objective this paper is improve the output torque capability with a by conducting multi-objective optimization design for permeability structure. first step involved establishing mathematical analytical model average ripple based on fundamental principle magnetization. Next, parameters were designed analyzed using...

10.3390/jmse12071064 article EN cc-by Journal of Marine Science and Engineering 2024-06-25

In order to research vibration and noise of TMPS-HESM. The Magnetic pole eccentricity TMPS-HESM is established. frequency characteristics radial electromagnetic force are discussed coupling model built by ANSYS Workbench simulation platform. response variation discussed. results show that magnetic can effectively reduce air gap flux density harmonic content, third significantly decreased. excitation current will affect the (8,2f1), (16,4f1), (0,12f1) components Although component not same...

10.1016/j.egyr.2022.08.081 article EN cc-by-nc-nd Energy Reports 2022-08-18

The G protein-coupled bile acid receptor (TGR5) is a cell surface which induces the production of intracellular cAMP and promotes epithelial-mesenchymal transition in gastric cancer lines. TGR5 found wide variety tissues including kidney. However, patterns expression have not been well characterized physiologic kidney or renal neoplasms. We explore benign tissue neoplasms assess its utility as diagnostic marker. Sixty-one cortical from 2000 to 2014 were retrieved. protein was examined by...

10.1186/s13000-018-0700-5 article EN cc-by Diagnostic Pathology 2018-04-02
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