Results 11 to 20 of about 323,837 (316)

Predictive Control for Current Distortion Mitigation in Mining Power Grids

open access: yesApplied Sciences, 2023
Current distortion is a critical issue of power quality because the low frequency harmonics injected by adjustable speed drives increase heating losses in transmission lines and induce torque flickering in induction motors, which are widely used in ...
Juan S. Gómez   +7 more
doaj   +1 more source

Simulation calculation of electric field protection for live working on Ultra-high voltage transmission line

open access: yesThe Journal of Engineering, 2019
The current standards related to live working provide no determined path for equal potential working, in which only safety distance is referred, so that the works are often executed relying on the line maintenance experience.
Bing Zhang   +6 more
doaj   +1 more source

Analysis and design of carbon fibre clamping apparatus for replacement of insulator strings in ultra-high voltage transmission line

open access: yesThe Journal of Engineering, 2019
Aiming at the characteristics of closed fixtures such as large size, heavy weight and difficulty in high-altitude operation, this study proposed a design method to improve the clamping apparatus for replacement of insulator strings in the ultra-high ...
Bing Zhang   +6 more
doaj   +1 more source

Electric Car Sharing as an Interdisciplinary Test Ground of Various Fields of Study

open access: yesStudia i Materiały, 2020
The aim of the article is to present car sharing, with particular emphasis on electric car sharing, as an interdisciplinary research area. This applies not only to social sciences – management (strategy or marketing), sociology, economics (including the ...
Grzegorz Tchorek   +8 more
doaj   +1 more source

Legendre Transforms for Electrostatic Energies [PDF]

open access: yes, 2014
We review the use of Legendre transforms in the formulation of electrostatic energies in condensed matter. We show how to render standard functionals expressed in terms of the electrostatic potential, Phi, convex - at the cost of expressing them in terms of the vector field D.
Andrew Colin Maggs, Justine S. Pujos
openaire   +2 more sources

Electrochemical cell recharging by solvent separation and transfer processes

open access: yesScientific Reports, 2022
Electrochemical conversion and storage of unutilized renewable energy will contribute to decarbonization. Here, we create the concept of a liquid electrochemical cell that discharges between the anodic and cathodic sides by reverse reactions of the same ...
Yohei Matsui   +3 more
doaj   +1 more source

Endogenous learning for green hydrogen in a sector-coupled energy model for Europe

open access: yesNature Communications, 2023
Many studies have shown that hydrogen could play a large role in the energy transition for hard-to-electrify sectors, but previous modelling has not included the necessary features to assess its role.
Elisabeth Zeyen   +2 more
doaj   +1 more source

Framework for energy transformation

open access: yes, 2022
We propose and adopt an energy saving conceptual framework which contains three parts: the energy conversion system, the socio-ecological system, and global environmental changes. The framework shapes our research in several ways. First, it recognises the role of young people (students) as an active player in energy consumption and carbon emissions. In
Quy Van Khuc, Phuong-Mai Tran
openaire   +1 more source

Effect of Carbonization Behaviour of Cotton Biomass in Electrodes for Sodium‐Ion Batteries

open access: yesChemElectroChem, 2023
Free‐standing hard carbon electrodes are produced from cotton biomass using a low‐cost, one‐step pathway. The free‐standing feature of the electrode eliminates the use of binders and toxic solvents.
Hridip Ranjan Sarma   +4 more
doaj   +2 more sources

Transforming energy use

open access: yesCurrent Opinion in Behavioral Sciences, 2021
Connecting individual energy-related perceptions and behaviors to the larger climate system is a daunting task. What can individuals do to change the system itself? How do we perceive how much energy different activities use? Are there ways to improve our perceptions?
openaire   +2 more sources

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