Results 61 to 70 of about 2,108,671 (167)

Design and Implementation of a Digitalised Marine Aids to Navigation Monitoring System for High‐Density Maritime Traffic Waters: A Case Study of the Strait of Malacca

open access: yesApplied Research, Volume 5, Issue 5, October 2026.
A digitalised Aids‐to‐Navigation monitoring system (ARMS) was deployed across 478 installations in the Strait of Malacca and Malaysian waters, integrating multi‐sensor edge validation, hybrid AIS/VHF/cellular communication, and a centralised platform. It achieved 98.3% availability and cut fault‐detection time from weeks to just 8.4 min.
Muhammad Fadhli Makhtar   +5 more
wiley   +1 more source

Overvoltage protection in industrial power distribution

open access: yes, 2017
Sähköverkkojen ylijännitteet aiheuttavat laitevahinkoja ja keskeytyskustannuksia. Kustannuksien vähentämiseksi sähköverkon osia suojataan ylijännitesuojilla, joilla pyritään minimoimaan verkon komponentteihin kohdistuvat vahingot.
Paju, Jussi-Mikko
core   +1 more source

Mechanism and suppression of breaking overvoltage of DC circuit breakers

open access: yesHigh Voltage
The occurrence of breaking overvoltage in a DC circuit breaker (DCCB) poses a potential threat to the safe operation of a DC grid. Based on the structure of the ±10 kV three‐terminal DC distribution network, this paper sets up the medium‐voltage DCCB and
Lu Qu   +7 more
doaj   +1 more source

Dynamic Reconstruction of Metal–Organic Framework and Metal–Organic Framework‐Derived Electrocatalysts for Bifunctional Oxygen Electrocatalysis in Alkaline Energy Devices

open access: yesElectrochemical Science Advances, Volume 6, Issue 5, October 2026.
ABSTRACT Alkaline oxygen reduction reaction (ORR)/OER bifunctionality is central to rechargeable Zn–air batteries, reversible fuel cells and regenerative electrolysis. These technologies are promising for mitigating carbon emissions resulting from fossil fuel energy dependency, driving the energy sector towards a carbon‐neutral energy cycle.
Tebogo Abigail Mashola   +4 more
wiley   +1 more source

Photovoltaic system overvoltage protection

open access: yes, 2011
This paper deals with overvoltage protection strategy and methods for photovoltaic systems as renewable energy source. It describes some sample circuit connection with overvoltage protection devices and some overvoltage protection device ...
Balogh, Jozef, Petráš, Jaroslav
core  

Automatic detection device for mining intrinsic safety power supply based on PWM

open access: yesMeikuang Anquan
Aiming at the problems of cumbersome factory inspection steps, low inspection efficiency, and poor consistency of protection parameter measurement results for intrinsically safe power supplies used in mining, a high-precision fully automatic factory ...
Dedong ZOU
doaj   +1 more source

Hydrogen From Simulated Seawater Using Long‐Term Stable and Cost‐Effective Plasmonic Photocatalysts

open access: yesChemSusChem, Volume 19, Issue 18, 28 September 2026.
Can plasmonic photocatalysts withstand a saline environment? Yes! A conductive polyaniline shell stabilizes gold–silver nanoparticles while largely preserving charge transfer to TiO2, achieving 348 ± 108 μmol H2 g−1 h−1. Moreover, the catalyst survived 1 month of storage in simulated seawater, with almost full retention of its initial activity.
Fons Dingenen   +7 more
wiley   +1 more source

Protection against thunderbolt, overvoltage with using technical means of possession protection

open access: yes, 2006
Tato bakalářská práce popisuje ochranu proti blesku a přepětí při nasazování technických prostředků ochrany majetku. V práci jsou uvedeny nejčastější druhy přepětí s časovými průběhy a napěťovými úrovněmi, jejich způsoby pronikání a vliv na elektrické ...
Řezáč, Miroslav
core   +2 more sources

Analysis of Overvoltages Appearing in One-Sidedly Ungrounded MV Power Cable Screen

open access: yesEnergies, 2020
Changing the connection type of a medium voltage (MV) cable screen is linked to a decrease in power loss, although it may also lead to the generation of overvoltage in a metallic cable screen, which is hazardous for proper cable line work. In this paper,
Aleksandra Schött-Szymczak   +1 more
doaj   +1 more source

Design Principles of Electrocatalysts for Industrial‐Scale Water Electrolysis

open access: yesAdvanced Energy Materials, Volume 16, Issue 36, 23 September 2026.
This Review distills electrocatalyst design for industrial‐scale water electrolysis into integrated principles linking active‐site engineering, phase and lattice modulation, interfacial microenvironment regulation and mass‐transport control. By connecting catalyst families with HER/OER mechanisms and practical operating demands, it outlines pathways ...
Hong Tang, Ce Cui, John Wang
wiley   +1 more source

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