Results 21 to 30 of about 19,231 (267)

Optimization of substation grounding grid design for horizontal and vertical multilayer and uniform soil condition using Simulated Annealing method.

PLoS ONE, 2021
Grounding systems are critical in safeguarding people and equipment from power system failures. A grounding system's principal goal is to offer the lowest impedance path for undesired fault current. Optimization of the grounding grid designs is important
Navinesshani Permal, Miszaina Osman, Azrul Mohd Ariffin, Navaamsini Boopalan, Mohd Zainal Abidin Ab Kadir   +4 more
doaj   +1 more source

Performance Optimization of Grounding System for Multi-Voltage Electrical Installation

Applied Sciences
Grounding systems are critical for ensuring electrical safety, fault current dissipation, and electromagnetic compatibility in power installations across different voltage levels.
Md Tanjil Sarker, Marran Al Qwaid, Md Sabbir Hossen, Gobbi Ramasamy   +3 more
doaj   +1 more source

Fault location method combining transient mutation and dynamic time warping algorithm for grounding system

Energy Reports, 2023
In the urban distribution network, due to the wide application of underground cables, the traditional resonant grounding system has gradually been unable to match the increasing fault current amplitude, real-time compensation and harmonic component ...
Kangli Liu, Chi Zhang, Wenzhe Chen, Jianfeng Zhao   +3 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

An Overview of Grounding Design and Grounding Fault Detection and Location Methods for a Multiphase Rectifier Generator Power Supply System

Machines, 2023
A multiphase rectifier generator is important power generation equipment in DC power systems in transportation fields such as ships and aviation. Grounding design and grounding fault detection and positioning are key technologies for the safe operation ...
He Huang, Fan Ma, Lijun Fu, Wei Zhu, Chun Li   +4 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Analysis of Transferred Potentials on Substation Fences

IEEE Open Journal of Industry Applications
Grounding systems play a critical role in ensuring the safety and reliability of power systems, particularly in substations, where public access poses a significant risk.
Erika Stracqualursi, Rodolfo Araneo, Massimo Mitolo   +2 more
doaj   +1 more source

Performance of Practical Grounding Systems under High Impulse Conditions

Energies, 2018
This paper investigates the factors affecting the impulse characteristics of purposely built grounding systems. We installed 2 m × 2 m grounding systems in four different sites with different soil resistivity values.
Muhd Shahirad Reffin, Normiza Mohamad Nor, Nurul Nadia Ahmad, Syarifah Abdullah   +3 more
doaj   +1 more source

Analysis of grounding system transient with consideration of soil ionization and mutual coupling effect

Journal of Electrical Systems and Information Technology, 2023
The grounding system of an electrical substation provides safety to both operator and equipment. The lightning current waveform has a major influence on the dynamic performance of ground electrodes.
Kaushal Pratap Sengar, Kandasamy Chandrasekaran   +1 more
doaj   +1 more source