Weiwang Wang
YOU?
Author Swipe
View article: Research on the classification of dimensional performance and feature extraction of primary school students' core literacy in science curriculum
Research on the classification of dimensional performance and feature extraction of primary school students' core literacy in science curriculum Open
The core competency-oriented curriculum reform has become an important issue in the current education field. In order to objectively evaluate the development status of primary school students' core literacy in science courses, this study u…
View article: Low-Loss Soft Magnetic Materials and Their Application in Power Conversion: Progress and Perspective
Low-Loss Soft Magnetic Materials and Their Application in Power Conversion: Progress and Perspective Open
Amorphous and nanocrystalline alloys, as novel soft magnetic materials, can enable high efficiency in a wide range of power conversion techniques. Their wide application requires a thorough understanding of the fundamental material mechani…
View article: Nonlinear dielectric response and conductivity characteristics of epoxy resin in high voltage AC electric field
Nonlinear dielectric response and conductivity characteristics of epoxy resin in high voltage AC electric field Open
High-voltage dielectric and AC conduction behaviors of epoxy resin (EP) insulation are beneficial for the design and application of solid-state power electronic devices. This study investigates the nonlinear dielectric response and AC cond…
View article: Influence of Thermal Aging on Space Charge Characteristics and Electrical Conduction Behavior of Cross-Linked Polyethylene Cable Insulation
Influence of Thermal Aging on Space Charge Characteristics and Electrical Conduction Behavior of Cross-Linked Polyethylene Cable Insulation Open
The aging of cable insulation presents a significant threat to the safe operation of cables, with space charge serving as a crucial factor influencing cable insulation degradation. However, the characteristics related to space charge and c…
View article: Effect of Thermal Ageing on Charge Transport Characteristics of Crosslinked Polyethylene Insulation
Effect of Thermal Ageing on Charge Transport Characteristics of Crosslinked Polyethylene Insulation Open
View article: Space Charge Characteristics and Breakdown Properties of Nanostructured SiO2/PP Composites
Space Charge Characteristics and Breakdown Properties of Nanostructured SiO2/PP Composites Open
Polypropylene (PP) has gained attention in the industry as an environmentally friendly material. However, its electrical properties are compromised due to space charge accumulation during operation, limiting its application in high-voltage…
View article: Interface Charge Characteristics in Polymer Dielectric Contacts: Analysis of Acoustic Approach and Probe Microscopy
Interface Charge Characteristics in Polymer Dielectric Contacts: Analysis of Acoustic Approach and Probe Microscopy Open
Interfaces are essential components in polymer contact systems, which widely exist in electronic devices and power equipment. Interface charge originating from the mismatch of the electronic structure in interfaces is one of the key issues…
View article: A Speedy Point Cloud Registration Method Based on Region Feature Extraction in Intelligent Driving Scene
A Speedy Point Cloud Registration Method Based on Region Feature Extraction in Intelligent Driving Scene Open
The challenges of point cloud registration in intelligent vehicle driving lie in the large scale, complex distribution, high noise, and strong sparsity of lidar point cloud data. This paper proposes an efficient registration algorithm for …
View article: Effect of Thermal Ageing on Charge Transport Characteristics of Crosslinked Polyethylene Insulation
Effect of Thermal Ageing on Charge Transport Characteristics of Crosslinked Polyethylene Insulation Open
View article: Intelligent model prediction of fluctuant increase of maximum electric field in XLPE insulation using long short‐term memory network algorithm
Intelligent model prediction of fluctuant increase of maximum electric field in XLPE insulation using long short‐term memory network algorithm Open
The electric field distortion due to space charge accumulations plays a significant role in the ageing, degradation and breakdown in failure of HVDC power cables. Currently, limited experimental results of the electric field dominated by s…
View article: Charge Accumulation in Inorganic Materials
Charge Accumulation in Inorganic Materials Open
Inorganic materials and ceramics are used for the insulating layer of IGBT-Modules of power devices.
View article: Down-Regulation of Long Non-Coding RNA TINCR Induces Cell Dedifferentiation and Predicts Progression in Oral Squamous Cell Carcinoma
Down-Regulation of Long Non-Coding RNA TINCR Induces Cell Dedifferentiation and Predicts Progression in Oral Squamous Cell Carcinoma Open
Objectives Recently long non-coding RNAs (lncRNAs) have emerged as novel gene regulators involved in tumorigenic processes, including oral squamous cell carcinoma (OSCC). Here, we identified a differentiation-related lncRNA, terminal diffe…
View article: Electric stress and dielectric breakdown characteristics under high-frequency voltages with multi-harmonics in a solid-state transformer
Electric stress and dielectric breakdown characteristics under high-frequency voltages with multi-harmonics in a solid-state transformer Open
Mixed-frequency electric stress and the thermal issue by rapid semiconductor switching and circuit topology cause the unexpected insulation breakdown, indicating a key issue on medium-high frequency (MF-HF) transformers. This work focuses …
View article: Failure of submarine cables used in high‐voltage power transmission: Characteristics, mechanisms, key issues and prospects
Failure of submarine cables used in high‐voltage power transmission: Characteristics, mechanisms, key issues and prospects Open
This study reviews the failure of high‐voltage submarine cables used in offshore power transmission and provides highlights of their failure characteristic, mechanisms, key issues and prospects. High‐voltage submarine cables are designed a…
View article: Effects of Spike Voltages Coupling With High <i>dV/dt</i> Square Wave on Dielectric Loss and Electric-Thermal Field of High-Frequency Transformer
Effects of Spike Voltages Coupling With High <i>dV/dt</i> Square Wave on Dielectric Loss and Electric-Thermal Field of High-Frequency Transformer Open
The insulation of high-frequency transformers (HFTs) has a significant impact on the safety and reliability of high voltage power electronic transformers (PETs). The transient voltages from the rapid turn-off and turn-on of the high voltag…
View article: Research status and development of insulation breakdown in engineering solid dielectrics
Research status and development of insulation breakdown in engineering solid dielectrics Open
Insulation breakdown is the key basic scientific issue in the development of high-performance engineering dielectric materials. With the development requirements of the third-generation power grid, super/UHV AC-DC (alternating current-dire…
View article: MicroRNA-204-5p is a tumor suppressor and potential therapeutic target in head and neck squamous cell carcinoma
MicroRNA-204-5p is a tumor suppressor and potential therapeutic target in head and neck squamous cell carcinoma Open
Elucidation of the molecular mechanisms governing aggressiveness of HNSCC may provide clinical therapeutic strategies for patients. In this study, a novel hub miR-204-5p functioning as tumor suppressor has been identified and explored in H…
View article: Improvement of Dielectric Breakdown Performance by Surface Modification in Polyethylene/TiO2 Nanocomposites
Improvement of Dielectric Breakdown Performance by Surface Modification in Polyethylene/TiO2 Nanocomposites Open
Dielectric breakdown is a significant property for the insulation system in high voltage power equipment. This paper is dedicated to the improvement of dielectric breakdown by surface-functionalized nanoparticles in low-density polyethylen…
View article: Surface trap effects on flashover voltages of epoxy/Al2O3 nanocomposites for high voltage insulation
Surface trap effects on flashover voltages of epoxy/Al2O3 nanocomposites for high voltage insulation Open
View article: Sensor for Accumulated Charge Detection in Packaged Insulation Layer of Insulated Gate Bipolar Transistor Power Devices
Sensor for Accumulated Charge Detection in Packaged Insulation Layer of Insulated Gate Bipolar Transistor Power Devices Open
A compact system for detecting charge accumulation in the insulation layer of power electronic devices such as insulated gate bipolar transistor (IGBT) modules was developed.The amount of electric charge accumulated in IGBT modules at high…
View article: Synergic effect of adsorbed gas and charging on surface flashover
Synergic effect of adsorbed gas and charging on surface flashover Open
Flashover is a crucial issue in both high-voltage engineering and surface physics. It not only challenges the existing theories about its dynamic evolution, but also inhibits the clean energy revolution by limiting the accessible voltage r…
View article: Unraveling the “U-Shaped” Dependence of Surface Flashover Performance on the Surface Trap Level
Unraveling the “U-Shaped” Dependence of Surface Flashover Performance on the Surface Trap Level Open
The effects of surface traps on surface flashover remain controversial. To clarify the relation between surface flashover and surface trap level, in this work, the surface trap level of epoxy composites was modified by nanoparticles incorp…
View article: Perioperative risk factors for postoperative pneumonia after major oral cancer surgery: A retrospective analysis of 331 cases
Perioperative risk factors for postoperative pneumonia after major oral cancer surgery: A retrospective analysis of 331 cases Open
Several perioperative risk factors can be identified that are associated with POP. At-risk oral cancer patients should be subjected to intensified postoperative pulmonary care.
View article: Space Charge of Polyethylene and Electronic Structure Analysis of Trapping Site using Common Chemical Groups
Space Charge of Polyethylene and Electronic Structure Analysis of Trapping Site using Common Chemical Groups Open
Pulsed electroacoustic (PEA) measurement technology is widely accepted to detect the space charge distribution inside insulating materials all over the world.In this work, we elucidated further the space charge mechanism based on the typic…
View article: Enhanced flashover strength in polyethylene nanodielectrics by secondary electron emission modification
Enhanced flashover strength in polyethylene nanodielectrics by secondary electron emission modification Open
This work studies the correlation between secondary electron emission (SEE) characteristics and impulse surface flashover in polyethylene nanodielectrics both theoretically and experimentally, and illustrates the enhancement of flashover v…
View article: Molecular relaxation and glass transition properties of epoxy resin at high temperature
Molecular relaxation and glass transition properties of epoxy resin at high temperature Open
Epoxy resin is widely used as a polymeric insulating material in power equipment, such as gas-insulated switchgear and gas-insulated lines. The motions of molecular chains or segmental chains in a polymeric insulating material can affect t…