Results 41 to 50 of about 16,187 (303)

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

open access: yesAdvanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe   +4 more
wiley   +1 more source

Monthly Power Outage Maintenance Scheduling for Power Grids Based on Interpretable Reinforcement Learning

open access: yesEnergies
This paper proposes an interpretable optimization method for power grid outage scheduling based on reinforcement learning. An outage scheduling optimization model is proposed, considering the convergence of power flow calculation, voltage violations, and
Wei Tang   +4 more
doaj   +1 more source

Multi-Hop Cognitive Wireless Powered Networks: Outage Analysis and Optimization

open access: yesIEEE Access, 2019
This paper analyzes and optimizes the outage performance of multi-hop cognitive wireless powered networks (CWPNs) in underlay paradigms. To be specific, there are multiple power beacons (PBs) performing wireless power transfer (WPT) for multiple battery ...
Chi Xu   +4 more
doaj   +1 more source

Lassoing line outages in the smart power grid [PDF]

open access: yes2011 IEEE International Conference on Smart Grid Communications (SmartGridComm), 2011
6 pages, 3 ...
Hao Zhu 0001, Georgios B. Giannakis
openaire   +2 more sources

Distributed beamforming and power allocation for cooperative networks. [PDF]

open access: yes, 2008
Cooperative diversity systems rely on using relay nodes to relay copies of transmitted information to the destination such that each copy experiences different channel fading, hence increasing the diversity of the system.
Ding, Zhiguo   +2 more
core  

Extreme Weather Events and Consumer Food Responses

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study investigates consumer food responses to Hurricanes Helene and Milton, which affected a swath of the Southeastern U.S. in 2024. Using representative consumer survey data from six affected states, we analyze 10 distinct food responses classified into ex ante and ex post responses, and examine their associations with food insufficiency
Ahmad Zia Wahdat, Joseph Balagtas
wiley   +1 more source

Power Management in Multiuser Adaptive Modulation Transmission under QoS Requirements

open access: yesInternational Journal of Antennas and Propagation, 2013
A transmitter power management mechanism is presented in this paper where Multiple-Input Multiple-Output (MIMO) Multiuser Random Beamforming with Adaptive Modulation strategy is performed by the system.
Saud Althunibat   +3 more
doaj   +1 more source

Investigations on hybrid line stability ranking index with polynomial load modeling for power system security

open access: yesElectrical engineering & Electromechanics, 2023
Introduction. In recent years, numerous non-renewable and renewable energies are connected to the grid to meet the demand. Also, transient variation with loads poses the shortcomings for generating units, transmission and distribution networks.
P. Venkatesh, N. Visali
doaj   +1 more source

Biographies, ontological security and the socio‐spatial politics shaping teachers' mobility in remote Australia

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The global teacher shortage continues to intensify, with disparate impacts across geographic and socio‐economic communities. In Queensland, Australia, where this study originates, post‐COVID teacher shortages have intensified workforce pressures, leaving several regional, rural and remote schools as some of the ‘hardest‐to‐staff’ in the ...
Matthew Readette   +5 more
wiley   +1 more source

Non-orthogonal multiple access in full-duplex-based coordinated direct and relay transmission (CDRT) system: performance analysis and optimization

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
This paper considers non-orthogonal multiple access (NOMA)-based coordinated direct and relay transmission (CDRT) system, where the base station (BS) directly communicates with the nearby users while it requires the help of a dedicated relay to ...
Aswathi V, Babu A V
doaj   +1 more source

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