Results 31 to 40 of about 8,773,144 (338)

Energy metrics assessment of a photovoltaic thermal air collector (PVTAC): a comparison between flat and wavy collector

open access: yesEnergy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
In this paper, the performances of two different configurations of the PVT air collector (PVTAC) were studied and compared with respect to three energy matrices: energy payback time, electricity production factor, and life-cycle conversion efficiency ...
P. Jha, J. Mondol, B. Das, Rajat Gupta
semanticscholar   +1 more source

Energy functionals and canonical Kähler metrics [PDF]

open access: yesDuke Mathematical Journal, 2007
Yau conjectured that a Fano manifold admits a Kahler-Einstein metric if and only if it is stable in the sense of geometric invariant theory. There has been much progress on this conjecture by Tian, Donaldson and others. The Mabuchi energy functional plays a central role in these ideas. We study the E_k functionals introduced by X.X. Chen and G.
Song, Jian, Weinkove, Ben
openaire   +4 more sources

Source sector and fuel contributions to ambient PM2.5 and attributable mortality across multiple spatial scales

open access: yesNature Communications, 2021
Ambient fine particulate matter (PM2.5) is one of the most important environmental health risk factors in many regions. Here, the authors present an assessment of PM2.5 emission sources and the related health impacts across global to sub-national scales ...
Erin E. McDuffie   +15 more
doaj   +1 more source

Energy, Carbon and Renewable Energy: Candidate Metrics for Green-Aware Routing?

open access: yesSensors, 2019
There are all sort of indications that Internet usage will go only upwards, resulting in an increase in energy consumption and CO2 emissions. At the same time, a significant amount of this carbon footprint corresponds to the information and communication
Md. Mohaimenul Hossain   +3 more
doaj   +1 more source

Entropy-Based Metrics for Occupancy Detection Using Energy Demand

open access: yesEntropy, 2020
Smart Meters provide detailed energy consumption data and rich contextual information that can be utilized to assist electricity providers and consumers in understanding and managing energy use.
Denis Hock, Martin Kappes, Bogdan Ghita
doaj   +1 more source

Cyber-Physical Energy Systems Security: Threat Modeling, Risk Assessment, Resources, Metrics, and Case Studies [PDF]

open access: yesIEEE Access, 2021
Cyber-physical systems (CPS) are interconnected architectures that employ analog and digital components as well as communication and computational resources for their operation and interaction with the physical environment. CPS constitute the backbone of
Ioannis Zografopoulos   +3 more
semanticscholar   +1 more source

Valuation of energy harvesting technologies — Insights for technology managers

open access: yesEnergy Reports, 2022
With the growing number of energy harvesting technologies, there is a need to identify the ones that hold the strongest future potential. This information is important to both investors and policy makers who are looking to adequately resource their ...
Praveena Chandra, Andy Dong
doaj   +1 more source

TELEPARALLEL GRAVITATIONAL ENERGY IN THE GAMMA METRIC [PDF]

open access: yesInternational Journal of Modern Physics D, 2006
The Møller energy (due to matter and fields including gravity) distribution of the gamma metric is studied in teleparallel gravity. The result is the same as those obtained in general relativity by Virbhadra in the Weinberg complex and Yang–Radincshi in the Møller definition.
openaire   +2 more sources

On the Geroch-Traschen class of metrics [PDF]

open access: yes, 2009
We compare two approaches to semi-Riemannian metrics of low regularity. The maximally 'reasonable' distributional setting of Geroch and Traschen is shown to be consistently contained in the more general setting of nonlinear distributional geometry in the
Steinbauer, R., Vickers, J.A.
core   +1 more source

Energy Integrals and Metric Embedding Theory [PDF]

open access: yesInternational Mathematics Research Notices, 2014
17 pages, Accepted in International Mathematics Research ...
Carando, Daniel Germán   +2 more
openaire   +3 more sources

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