Wenxia Sima
YOU?
Author Swipe
View article: In Situ Autofluorescence Imaging Unveils Interfacial Confinement Effect on Electrical Treeing in Multiphase Polymers
In Situ Autofluorescence Imaging Unveils Interfacial Confinement Effect on Electrical Treeing in Multiphase Polymers Open
In the field of multiphase polymer interface science, electrical tree damage remains a critical scientific challenge for maintaining insulation reliability. However, the limited spatial resolution of existing characterization techniques ha…
View article: Electric Field‐Stimulated Autofluorescence for In Situ 3D Characterization of Polymer Defects
Electric Field‐Stimulated Autofluorescence for In Situ 3D Characterization of Polymer Defects Open
The absence of in situ detection approaches for internal defect structures in polymers (such as microscale fillers, voids, and electrical trees) has long impeded advanced materials characterization. Herein, it is demonstrate that moderate …
View article: Dynamic covalent networks and photothermal microcapsules: A synergistic strategy for autonomous repair of multi-scale defects
Dynamic covalent networks and photothermal microcapsules: A synergistic strategy for autonomous repair of multi-scale defects Open
View article: Eggshell-inspired high-load rigid porous microcapsules for efficient self-healing of multimodal damage in insulating materials
Eggshell-inspired high-load rigid porous microcapsules for efficient self-healing of multimodal damage in insulating materials Open
To address the inherent trade-off between mechanical strength and repair efficiency in conventional microcapsule-based self-healing technologies, this study presents an eggshell-inspired approach for fabricating high-load rigid porous micr…
View article: Preparation of epoxy resin composite based on thermochromic microcapsules and application in temperature monitoring for power equipment
Preparation of epoxy resin composite based on thermochromic microcapsules and application in temperature monitoring for power equipment Open
Abnormal temperature rise in power equipment is a primary cause of insulation aging and grid failures. Conventional temperature monitoring technologies face challenges such as poor environmental adaptability and high costs. This study pres…
View article: Eggshell–Inspired High–Load Rigid Porous Microcapsules for Efficient Self–Healing of Multimodal Damage in Insulating Materials
Eggshell–Inspired High–Load Rigid Porous Microcapsules for Efficient Self–Healing of Multimodal Damage in Insulating Materials Open
View article: 3D Non-Destructive Imaging via In Situ Autofluorescence Unravels Field-Driven Electric Tree Dynamics and Microfiller Synergy in Polymers
3D Non-Destructive Imaging via In Situ Autofluorescence Unravels Field-Driven Electric Tree Dynamics and Microfiller Synergy in Polymers Open
View article: Bioinspired Lotus Leaf Microstructure Self-Healing Flexible Sensor: Towards Dynamic Physiological Signal Monitoring and Three-Dimensional Stress Field Decoupling
Bioinspired Lotus Leaf Microstructure Self-Healing Flexible Sensor: Towards Dynamic Physiological Signal Monitoring and Three-Dimensional Stress Field Decoupling Open
View article: In Situ 3D Characterization of Polymer Microstructures: Electric Field-Induced Autofluorescence Confocal Microscopy Imaging and Stimulated Emission Mechanisms
In Situ 3D Characterization of Polymer Microstructures: Electric Field-Induced Autofluorescence Confocal Microscopy Imaging and Stimulated Emission Mechanisms Open
View article: Gas-Phase Collisional Ionization Suppression Via Nanostructure Design: A Silica-Epoxy Dielectric with Unparalleled Insulation and Carbon Sequestration
Gas-Phase Collisional Ionization Suppression Via Nanostructure Design: A Silica-Epoxy Dielectric with Unparalleled Insulation and Carbon Sequestration Open
View article: In Situ Autofluorescence Imaging Unveils Interfacial Confinement Effect on Electrical Treeing in Multiphase Polymers
In Situ Autofluorescence Imaging Unveils Interfacial Confinement Effect on Electrical Treeing in Multiphase Polymers Open
View article: In Situ Autofluorescence Imaging Unveils Interfacial Confinement Effect on Electrical Treeing in Multiphase Polymers
In Situ Autofluorescence Imaging Unveils Interfacial Confinement Effect on Electrical Treeing in Multiphase Polymers Open
View article: In Situ 3D Characterization of Polymer Microstructures: Electric Field-Induced Autofluorescence Confocal Microscopy Imaging and Stimulated Emission Mechanisms
In Situ 3D Characterization of Polymer Microstructures: Electric Field-Induced Autofluorescence Confocal Microscopy Imaging and Stimulated Emission Mechanisms Open
View article: Achieving Exceptional High-Temperature Capacitance Energy Storage in Polyimide Through Aromatic Structure-Based Electron Induced Effects
Achieving Exceptional High-Temperature Capacitance Energy Storage in Polyimide Through Aromatic Structure-Based Electron Induced Effects Open
View article: Bilayer Nested Porous Microcapsules Inspired by Honeycomb Structures Achieving Efficient Self-Healing and Intrinsic Property Enhancement of Insulating Materials
Bilayer Nested Porous Microcapsules Inspired by Honeycomb Structures Achieving Efficient Self-Healing and Intrinsic Property Enhancement of Insulating Materials Open
View article: Nondestructive 3D Imaging of Microscale Damage inside Polymers—Based on the Discovery of Self‐Excited Fluorescence Effect Induced by Electrical Field (Adv. Sci. 25/2023)
Nondestructive 3D Imaging of Microscale Damage inside Polymers—Based on the Discovery of Self‐Excited Fluorescence Effect Induced by Electrical Field (Adv. Sci. 25/2023) Open
Nondestructive 3D Imaging of Microscale Damage In article number 2302262, Potao Sun, and co‐workers report for the self‐excited fluorescence of a microscale‐damaged microchannel inside a polymer under the influence of an electric field. Th…
View article: Nondestructive 3D Imaging of Microscale Damage inside Polymers—Based on the Discovery of Self‐Excited Fluorescence Effect Induced by Electrical Field
Nondestructive 3D Imaging of Microscale Damage inside Polymers—Based on the Discovery of Self‐Excited Fluorescence Effect Induced by Electrical Field Open
The development of high‐precision, non‐destructive, and three‐dimensional (3D) in situ imaging of micro‐scale damage inside polymers is extremely challenging. Recent reports suggest that 3D imaging technology based on micro‐CT technology c…
View article: Environmentally Friendly Super-Insulating Material with Three-Dimensional Nanoporous Structure: A Promising Candidate for Future Gas Insulated Transmission Lines and Carbon Sequestration
Environmentally Friendly Super-Insulating Material with Three-Dimensional Nanoporous Structure: A Promising Candidate for Future Gas Insulated Transmission Lines and Carbon Sequestration Open
View article: An adaptive‐impedance fault current limiter for accelerating fault current suppression in MMC‐HVDC systems
An adaptive‐impedance fault current limiter for accelerating fault current suppression in MMC‐HVDC systems Open
DC fault clearance is one of the critical issues for the modular‐multilevel‐converter‐based high voltage direct current (MMC‐HVDC) systems. Employing a hybrid DC circuit breaker (H‐DCCB) to isolate the faulty line is a typical method to ac…
View article: Siloxane-Based Nanoporous Polymer Insulating Dielectrics with High Electrical Strength and Low Permittivity for Future Ultra-High Voltage Pipeline Transmission
Siloxane-Based Nanoporous Polymer Insulating Dielectrics with High Electrical Strength and Low Permittivity for Future Ultra-High Voltage Pipeline Transmission Open
View article: Physicochemical Characteristics and Dynamic Charge Mapping in Thermally Aged Two-Layered Polymer Considering Surface States: Experiment and Simulation
Physicochemical Characteristics and Dynamic Charge Mapping in Thermally Aged Two-Layered Polymer Considering Surface States: Experiment and Simulation Open
Under operational conditions of high electric fields and elevated temperatures, the accumulation of space charges at multilayer insulation interfaces is often considered as an important factor affecting insulation performance. This study e…
View article: A Promising Nano-Insulating-Oil for Industrial Application: Electrical Properties and Modification Mechanism
A Promising Nano-Insulating-Oil for Industrial Application: Electrical Properties and Modification Mechanism Open
Despite being discovered more than 20 years ago, nanofluids still cannot be used in the power industry. The fundamental reason is that nano-insulating oil has poor stability, and its electrical performance decreases under negative impulse …
View article: Low-frequency model for single-phase transformers based on the three-component Preisach model considering deep saturation
Low-frequency model for single-phase transformers based on the three-component Preisach model considering deep saturation Open
View article: Review of accumulative failure of winding insulation subjected to repetitive impulse voltages
Review of accumulative failure of winding insulation subjected to repetitive impulse voltages Open
The premature failure phenomenon that occurs in solid insulation under the application of repetitive impulse voltages is known as the accumulative effect of impulse voltages on a solid dielectric. The accumulative failure of winding insula…
View article: Novel Nanostructure Composite Dielectric with High Insulation Performance: Silica-Based Nanometer-Sized Porous Composite Insulating Paper Reinforced by Ceramic Fibers
Novel Nanostructure Composite Dielectric with High Insulation Performance: Silica-Based Nanometer-Sized Porous Composite Insulating Paper Reinforced by Ceramic Fibers Open
View article: Optimization and Experimental Study of the Semi-Closed Short-Gap Arc-Extinguishing Chamber Based on a Magnetohydrodynamics Model
Optimization and Experimental Study of the Semi-Closed Short-Gap Arc-Extinguishing Chamber Based on a Magnetohydrodynamics Model Open
The multi-chamber arc-extinguishing structure (MAS), which consists of a lot of semi-closed short-gap arc-extinguishing chambers (SSAC) in series, can be used in parallel gap lightning protection devices to improve the ability to extinguis…
View article: Effects of waveform parameters on the breakdown characteristics of OIP subjected to impulse voltages and evaluation method for waveform equivalence
Effects of waveform parameters on the breakdown characteristics of OIP subjected to impulse voltages and evaluation method for waveform equivalence Open
The impulse voltage wave invading a transformer is not the double exponential impulse wave (DEIW) specified by the IEC but a non‐standard waveform with oscillation attenuation characteristics, and this fact leads to doubts about the scient…
View article: Failure Characteristics and Mechanism of Nano-Modified Oil-Impregnated Paper Subjected to Repeated Impulse Voltage
Failure Characteristics and Mechanism of Nano-Modified Oil-Impregnated Paper Subjected to Repeated Impulse Voltage Open
Nano-modification is a prospective method for improving the electrical properties of transformer oil. In most situations, transformer oil combined with cellulose paper is used to construct an insulation system for power equipment, such as …
View article: Development and distribution of surface charge on epoxy resin under dc electric field in different gases
Development and distribution of surface charge on epoxy resin under dc electric field in different gases Open
Under DC voltage, charge accumulates on the break insulation of mechanical DC circuit breakers, distorting the local electric field, which increases the risk of break insulation failure. Glass-fiber vacuum-impregnated epoxy resin can be us…
View article: Modeling of grain-oriented Si-steel and amorphous alloy iron core under ferroresonance using Jiles–Atherton hysteresis method
Modeling of grain-oriented Si-steel and amorphous alloy iron core under ferroresonance using Jiles–Atherton hysteresis method Open
Amorphous alloy is increasingly widely used in the iron core of power transformer due to its excellent low loss performance. However, its potential harm to the power system is not fully studied during the electromagnetic transients of the …