Results 61 to 70 of about 4,889,124 (198)

Systems code models for stellarator fusion power plants and application to stellarator optimisation

open access: yes, 2023
Stellarators are attractive candidates for commercial fusion power plants: they inherently operate in steady-state and, unlike tokamaks, do not require a plasma current to obtain magnetic confinement, which can lead to current-driven disruptions.
Lion, J. ; https://orcid.org/   +1 more
core   +1 more source

Improving fast-particle confinement in quasi-axisymmetric stellarator optimization

open access: yesPlasma Physics and Controlled Fusion, 2019
A method to improve fast-particle confinement during quasi-axisymmetric stellarator optimization has been identified. Quasi-axisymmetric (qa) stellarator designs have improved neoclassical transport due to their special symmetry of the magnetic field ...
S. Henneberg, M. Drevlak, P. Helander
semanticscholar   +1 more source

Magneto‐Thermal Assessment of Ferrofluid Flow in Corrugated Porous Domain With Rotating Cylinder for Nuclear Systems

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
This research presents a novel approach by combining magnetohydrodynamic (MHD) flow with ohmic heating to investigate the conjugate mixed convective transport of ferrofluid in a discretely heated, smooth/wavy‐walled, square‐shaped porous compartment featuring a clockwise spinning cylindrical body positioned at various locations.
Nahid Hasan   +4 more
wiley   +1 more source

Single-stage gradient-based stellarator coil design: stochastic optimization

open access: yes, 2021
We extend the single-stage stellarator coil design approach for quasi-symmetry on axis from [Giuliani et al, 2020] to additionally take into account coil manufacturing errors.
Cerfon, Antoine   +4 more
core   +2 more sources

Exploration of the parameter space of piecewise omnigenous stellarator magnetic fields

open access: yesNuclear Fusion
Piecewise omnigenous fields are stellarator magnetic fields that are optimized with respect to radial neoclassical transport thanks to a second adiabatic invariant that is piecewisely constant on the flux-surface.
J.L. Velasco, E. Sánchez, I. Calvo
doaj   +1 more source

Greedy permanent magnet optimization

open access: yesNuclear Fusion, 2023
A number of scientific fields rely on placing permanent magnets in order to produce a desired magnetic field. We have shown in recent work that the placement process can be formulated as sparse regression.
Alan A. Kaptanoglu   +2 more
doaj   +1 more source

Shaping the Future of Energy: Breakthrough Additive Manufacturing (3D) Technologies for Renewables

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
Additive manufacturing (AM), a rapidly growing field of application, is widely used to create environmentally friendly energy production and storage systems. This study presents a comprehensive analysis of recent developments in the production of renewable energy systems (RESs) using AM technologies, focusing on advantages, challenges, and possible ...
Gülbahar Bilgiç Tüzemen   +7 more
wiley   +1 more source

A quasi-isodynamic configuration with good confinement of fast ions at low plasma β

open access: yesNuclear Fusion, 2023
A new quasi-isodynamic (QI) stellarator configuration optimized for the confinement of energetic ions at low plasma β is obtained. The numerical optimization is carried out using the STELLOPT suite of codes.
E. Sánchez   +3 more
doaj   +1 more source

An optimized Hβ index for disentangling stellar population ages [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
We have defined a new H_βabsorption index definition, H$_{β_o}$, which has been optimized as an age indicator for old and intermediate age stellar populations. Rather than using stellar spectra, we employed for this purpose a library of stellar population SEDs of different ages and metallicities at moderately high spectral resolution.
Cervantes, J. L., Vazdekis, A.
openaire   +2 more sources

Implications of Innovative Nuclear Technologies on Ghana’s Nuclear Future

open access: yesScience and Technology of Nuclear Installations, Volume 2026, Issue 1, 2026.
Innovations in nuclear technology have the potential to play a transformative role in Ghana’s pursuit of a secure, reliable and low‐carbon energy future. This review examines recent global advances in nuclear reactor technologies, fuel cycle systems, waste management approaches, regulatory practices and digital applications and assesses their relevance
R. G. Abrefah   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy