Results 41 to 50 of about 150,861 (308)

Performance Evaluation of Outdoor High Voltage Glass Insulators in High Pollution Industrial Areas Using Simulated Acid Rain Contamination

open access: yesIEEE Access, 2022
A suitable, non-standard method for artificial pollution testing using simulated acid rain pollution in a laboratory was developed in this work. The method is applicable to a wide range of climatic conditions and rain acidities.
Chibuike Ilomuanya   +2 more
doaj   +1 more source

Statistical Analysis of Partial Discharge Characteristics in Transformer Oil at the “Point-Plane” Electrode at Alternating Voltage [PDF]

open access: yesProblems of the Regional Energetics, 2017
In this paper, we consider the problems related to measuring and analyzing the characteristics of partial discharges which are the main instrument for oil-filled high-voltage electrical equipment diagnosing.
Korobeynikov S.M.   +3 more
doaj  

Comparative Tests of Partial Discharges in Nomex® 910 Paper and Cellulose Paper

open access: yesEnergies, 2020
The article presents the results of comparative investigations of partial discharges in two insulation systems; aramid-enhanced cellulose paper-mineral oil, and pure cellulose paper-mineral oil. Partial discharges were investigated in a diagonal electric
Hubert Moranda   +4 more
doaj   +1 more source

A Study of the Cleansing Effect of Precipitation and Wind on Polluted Outdoor High Voltage Glass Cap and Pin Insulator

open access: yesIEEE Access, 2022
In this work, the extent of natural cleansing effect of rainfall, wind and fog or a combination of these on an insulator string were investigated. Results showed that pollution losses progress with time, with a considerable fraction of losses occurring ...
Chibuike Ilomuanya   +2 more
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Diagnosis of High Voltage Insulators Made of Ceramic Using Spectrophotometry

open access: yesJournal of Spectroscopy, 2016
The paper presents results of comparative analysis of optical signals emitted by partial discharges occurring on three types of high voltage insulators made of porcelain.
Paweł Frącz   +3 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Features of monitoring extra large partial discharge in high voltage insulators

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE of the described study is to study the effect of partial discharges on the physical state of previously detected defects in high-voltage insulators.
D. A. Ivanov
doaj   +1 more source

How Wikipedia Can Overcome the Great Firewall of China [PDF]

open access: yes, 2006
Oil is the main insulation in power transformers and over long time of ageing its insulation properties can change. In this paper ageing of oil due to the exposure to electric discharges was investigated.
Edin, Hans   +2 more
core   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Home - About - Disclaimer - Privacy