Results 91 to 100 of about 14,564 (307)

Assessment of the risk of failure of high voltage substations due to environmental conditions and pollution on insulators

, 2015
Pollution on electrical insulators is one of the greatest causes of failure of substations subjected to high levels of salinity and environmental pollution. Considering leakage current as the main indicator of pollution on insulators, this paper focus on
Oviedo-Trespalacios, Óscar, Soto, Jose D., Candelo, John E., Sierra, Rafael Castillo   +3 more
core   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Characteristics and influence of lightning impulse discharge of zero-value insulator strings in heavy rainfall environment

电力工程技术
Heavy rainfall can bridge the sheds of insulators on transmission lines, substations, and converter stations with continuous water columns, leading to electric field distortion.
Bingbing DONG, Yu QIAO, Xia YAO
doaj   +1 more source

Reconfigurable Logic‐in‐Memory Operations Enabled by Triple‐Gated Feedback Field‐Effect Transistors for Area‐Efficient Computing

Advanced Engineering Materials, EarlyView.
A reconfigurable logic‐in‐memory cell composed of triple‐gated feedback field‐effect transistors implements multiple combinational logic functions within a single configuration. By utilizing program gates as dynamic input terminals, the proposed cell performs full adder, full subtractor, 2‐to‐1 multiplexer, and 4‐to‐2 encoder operations without ...
Minhyeok Seol, Yunwoo Shin, Donghyung Lee, Dongki Kim, Kyoungah Cho, Sangsig Kim   +5 more
wiley   +1 more source

Computation of Electric Field on High Voltage Polymeric Insulators Using Actual Model With Optimal Corona Ring Dimensions

Energy Science & Engineering
This article deals with the calculations of the electric field and the potential distribution of the polymer insulators of the HVTLs with the use of corona rings. The calculations are done when the insulators are stressed by power frequency voltage.
Ossama E. Gouda, Esraa Aziz, Matti Lehtonen, Mohamed M. F. Darwish   +3 more
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Effect of Industrial Pollution on Different Types of High Voltage Insulators

Journal of Engineering and Sustainable Development, 2011
High voltage insulators is essential part of the high voltage electric power transmission line . This paper investigate the electrical performance of two types of insulator (porcelain and silicon rubber) used in service and subjected to pollution ...
Arkan A. Hussein, Yaroub G. Jasim, Sabah S. Salih   +2 more
doaj  

Microbiological growth analysis on a 275 kV transmission line composite insulator in South Africa

South African Journal of Science
Transmission line silicon rubber insulators are frequently subjected to harsh environmental conditions that can change their surface characteristics and result in a transient or permanent loss of hydrophobicity.
Rembuluwani P. Tshubwana, Chandima Gomes, John van Coller, Thierry J.C. Regnier   +3 more
doaj   +1 more source

High Voltage Performance of Surface Coatings on Alumina Insulators

, 2016
Alumina insulators and dielectrics are required for a variety of applications in particle accelerators. Their use in high voltage devices, both pulsed and DC, is well established as both insulation and mechanical support.
Barnes, Michael, Ducimetière, Laurent, Day, Hugo, Adraktas, Antonios   +3 more
core   +1 more source