Results 111 to 120 of about 11,959 (300)

Investigation on performances of insulation materials for inverter-fed traction motors

, 1998
In order to investigate the degradation phenomena of the electrical insulation of stator windings stressed by non sinusoidal applied voltages, an experimental activity has been carried out on specimen subjected to repetitive unipolar pulse voltages.
PETRARCA, C., V. Tucci, VITELLI, M., PETRARCA, CARLO, L. Egiziano, C. PETRARCA, TUCCI, Vincenzo, M. Vitelli, VITELLI, Massimo, G. LUP, EGIZIANO, Luigi   +10 more
core   +1 more source

Safety of Lead Repair Compared to Lead Revision for Visible Lead Insulation Defects in Patients With Cardiac Implantable Electronic Devices. [PDF]

CJC Open, 2021
Fanous Y, Gula L, Skanes A, Tang A, Yee R, Khan HR.   +5 more
europepmc   +1 more source

A Preprocessing Method for Insulation Pull Rod Defect Dataset Based on the YOLOv5s Object Detection Network

Sensors
Insulation pull rods used in gas-insulated switchgear (GIS) inevitably contain the micro defects generated during production. The intelligent identification method, which requires large datasets with a balanced distribution of defect types, is regarded ...
Xuetong Li, Meng Cong, Bo Liu, Xianhao Fan, Weiqi Qin, Fangwei Liang, Chuanyang Li, Jinliang He   +7 more
doaj   +1 more source

Further Investigations into the Capacitive Imaging Technique Using a Multi-Electrode Sensor

Applied Sciences, 2018
As a novel non-destructive testing technique, capacitive imaging (CI) has been used to detect defects within the insulation layer and metal surface of an insulated metallic structure, that is, pipe or vessel. Due to the non-linearity of the probing field,
Zhen Li, Guoming Chen, Yue Gu, Kefan Wang, Wei Li, Xiaokang Yin   +5 more
doaj   +1 more source

A Holistic Stabilization of the Anode in Lithium‐Sulfur Batteries Through a Ternary Alloy Fusion

Advanced Functional Materials, EarlyView.
LiTeAl anodes fabricated through a scalable thermal fusion technique holistically addresses the stability issues faced by lithium‐metal anodes in lithium–sulfur batteries. Aluminum forming a skeletal network with lithium suppresses dendrite growth and enhances energy density, while tellurium forming a robust SEI facilitates Li+‐ion flow.
Akhil Shenoy, Arumugam Manthiram
wiley   +1 more source

Acoustic system for online wiring test on aircraft. [PDF]

, 2008
- Wiring onboard of legacy aircraft is becoming a liability due to a prolonged use of aircraft. Testing as well as repairs and maintenance require extensive number of man-hours bringing up the costs and reducing flight time of the aircraft.
Richardson, Andrew, Sutherland, A., Koltsov, D., Xu, Z.   +3 more
core  

A Dual‐Functional Electrolyte Additive for Highly Reversible Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
This study introduces tetrabutylammonium bromide (TBAB) as a dual‐function additive for aqueous zinc‐ion batteries. TBAB disrupts the hydrogen‐bond network of water while TBA+ adsorbs on Zn to improve interfacial wettability and regulate Zn2+ flux, resulting in suppressed dendrite growth and parasitic reactions. This synergy extended the lifespan of Zn|
Shirui Zhang, Shixun Wang, Jianen Zhang, Jun Liu, Jinfeng Xie, Wentao Tang, Li Guan, He Huang, Qi Xue, Chunyi Zhi   +9 more
wiley   +1 more source

Analysis of the deterioration process of DC XLPE cable with protrusion defect based on the development of partial discharge.

PLoS ONE
High-voltage direct current (HVDC) cables are essential for long-distance power transmission, particularly in renewable energy applications. Cross-linked polyethylene (XLPE) insulation is commonly used in these cables, but protrusion defects that occur ...
Yunjie Zhou, Shuting Yang, Jiamin Xu, Haosheng Lv, Jialiang Yuan, Baiyu Li   +5 more
doaj   +1 more source

Enhancement of Dielectric Breakdown Strength and Recoverable Energy Density in Three‐Dimensional Heterointerfaces on BaTiO3–PbZrO3–PbTiO3 Films via Room‐Temperature Nano‐Clustering

Advanced Functional Materials, EarlyView.
A room‐temperature aerosol deposition process yields multiphase nano‐clustered dielectric capacitors containing discrete BaTiO3, PbZrO3, and PbTiO3 crystals. This architecture creates three‐dimensional heterointerfaces that induce interfacial charge trapping and effectively inhibit breakdown propagation.
Hyunseok Song, Ke Xu, Donggeon Baek, Dayeong Hur, Minjae Kim, Hyun‐Cheol Song, Dae‐Yong Jeong, Houbing Huang, Jungho Ryu   +8 more
wiley   +1 more source

Radio frequency non-destructive testing and evaluation of defects under insulation [PDF]

, 2014
PhD ThesisThe use of insulation such as paint coatings has grown rapidly over the past decades. However, defects and corrosion under insulation (CUI) still present challenges for current non-destructive testing and evaluation (NDT&E) techniques.
Zhang, Hong
core