Results 51 to 60 of about 2,131,152 (220)

Decoupling Energy, Water, and Food Resources Production from GHG Emissions: A Footprint Perspective Review of Africa from 1990 to 2017

open access: yesEnergies, 2021
Decoupling energy, water, and food (EWF) consumption and production from GHG emissions could be an important strategy for achieving the UN Sustainable Development Goals (SDGs), especially SDG 2 (Zero Hunger), SDG 6 (Clean Water and Sanitation), and SDG 7
Fabien Muhirwa   +6 more
doaj   +1 more source

Signatures of clean phases in many-body localized quantum circuits [PDF]

open access: yesarXiv, 2021
Many-body phenomena far from equilibrium present challenges beyond reach by classical computational resources. Digital quantum computers provide a possible way forward but noise limits their use in the near-term. We propose a scheme to simulate and characterize many-body Floquetsystems hosting a rich variety of phases that operates with a shallow depth
arxiv  

Exchange induced ordinary reflection in a single-channel superconductor-ferromagnet-superconductor junction [PDF]

open access: yesPhys. Rev. B 70, 224520 (2004), 2004
The stationnary Josephson effect in a clean Superconductor-Ferromagnet-Superconductor junction is revisited for arbitrarily large spin polarizations. The quasiclassical calculation of the supercurrent assumes that the Andreev reflection is complete for all channels.
arxiv   +1 more source

On clean energy use: the role of health care facilities in improving clean cooking energy adoption in Ghana

open access: yesDiscover Sustainability
The quest towards a low carbon economy and to achieve the SDG 7 of access to a clean, affordable and modern energy for all has led to numerous studies that seek to examine the determinants of clean energy adoption. Despite the numerous studies previously
Kwame Adjei-Mantey
doaj   +1 more source

Advancing a global transition to clean energy – the role of international cooperation

open access: yesEconomics: Journal Articles, 2019
International cooperation in support of a global energy transition is on the rise, and official development assistance (ODA) in the energy sector is increasingly being directed to renewable energy sources.
Quitzow Rainer   +4 more
doaj   +1 more source

Techno-Economic Evaluation of Hydrogen-Based Cooking Solutions in Remote African Communities—The Case of Kenya

open access: yesEnergies, 2023
Hydrogen has recently been proposed as a versatile energy carrier to contribute to archiving universal access to clean cooking. In hard-to-reach rural settings, decentralized produced hydrogen may be utilized (i) as a clean fuel via direct combustion in ...
Nikolas Schöne   +2 more
doaj   +1 more source

A moving mesh unstaggered constrained transport scheme for magnetohydrodynamics [PDF]

open access: yes, 2016
We present a constrained transport (CT) algorithm for solving the 3D ideal magnetohydrodynamic (MHD) equations on a moving mesh, which maintains the divergence-free condition on the magnetic field to machine-precision. Our CT scheme uses an unstructured representation of the magnetic vector potential, making the numerical method simple and ...
arxiv   +1 more source

D6 Family Symmetry and Cold Dark Matter at LHC

open access: yes, 2008
We consider a non-supersymmetric extension of the standard model with a family symmetry based on D6 Z2 Z2, where one of Z2's is exactly conserved. This Z2 forbids the tree-level neutrino masses and simultaneously ensures the stability of cold dark matter
C. E. Aalseth   +7 more
core   +1 more source

Generalization of Strongly Clean Rings [PDF]

open access: yesarXiv, 2012
In this paper, strongly clean ring defined by W. K. Nicholson in 1999 has been generalized to n-strongly clean, {\Sigma}-strongly clean and with the help of example it has been shown that there exists a ring, which is n-strongly clean and {\Sigma}-strongly clean but not strongly clean. It has been shown that for a commutative ring R formal power series
arxiv  

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