Results 71 to 80 of about 152,416 (209)

Submarine Flank Collapses at Tagoro Volcano: Insights From Bathymetric Surveys and 3D Multiphase Simulations

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Volcanic islands are prone to flank instabilities that can generate tsunamis even when mobilized volumes are moderate. This study investigates submarine collapses during the 2011–2012 eruption south of El Hierro, which built the Tagoro submarine volcano.
E. P. Montellà, A. Romano, G. Barajas, J. A. Lozano, J. T. Vázquez, J. L. Lara, E. Fraile‐Nuez   +6 more
wiley   +1 more source

AI-Augmented, Ripple-Diamond-Chain Shaped, Rateless Routing in Wireless Mesh Networks With Multibeam Directional Antennas

IEEE Access, 2018
Use of multibeam directional antennas (MBDAs) allows a node to simultaneously communicate in multiple directions on its different beams, which can significantly improve the data throughput compared with omni-directional or single-beam directional ...
Ke Bao, Fei Hu, Sunil Kumar
doaj   +1 more source

Glacial Imprints and Marine Overprints: Sediment Architecture and Fjord Evolution in Fiordland, New Zealand

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Fjords are globally significant sedimentary archives that record the relationship between glacial, tectonic, and marine processes. Fiordland, on the southwest coast of New Zealand, hosts one of the most extensive temperate fjord provinces in the Southern Hemisphere, yet its postglacial evolution has remained poorly constrained.
Ellen Unland, Andrew R. Gorman, Philip M. Barnes, Christopher M. Moy, Gary S. Wilson, Christina R. Riesselman, Jess I. T. Hillman   +6 more
wiley   +1 more source

Analisys of Conformal Antennas for Avionics Applications [PDF]

, 2007
Conformal antennas might have an important impact on communication and navigation applications on aircraft, ships and other vehicles. This thesis work presents a general study on conformal antennas and their potential application on aircraft structures ...
Redondo Gonzalez, Maria del Carmen
core  

A QoS-Based Dynamic Queue Length Scheduling Algorithm in Multiantenna Heterogeneous Systems

EURASIP Journal on Wireless Communications and Networking, 2010
The use of real-time delay-sensitive applications in wireless systems has significantly grown during the last years. Therefore the designers of wireless systems have faced a challenging issue to guarantee the required Quality of Service (QoS).
Verikoukis Christos, Zorba Nizar
doaj   +2 more sources

Fish welfare in a changing world: New developments and current challenges

Journal of Fish Biology, Volume 109, Issue 2, Page 650-692, August 2026.
Abstract The welfare of non‐human animals is central to ethical discussions on animal use, with increasing attention to fish welfare across research, aquaria, aquaculture, and fisheries. This paper reviews current theoretical approaches to animal welfare and recent advances in defining and assessing fish welfare since the seminal paper by Huntingford ...
Sonia Rey Planellas, João L. Saraiva, Eliane Gonçalves‐de‐Freitas, Pablo Arechavala‐Lopez, Bernice Bovenkerk, Michael Breen, Steven J. Cooke, Martin Føre, Lene Northwood, Lars Helge Stien, Sunil Kadri, Chris Noble, Jonatan Nilsson, Fernando Rodriguez, Cosme Salas, Peter Sandøe, Hans van de Vis   +16 more
wiley   +1 more source

Gridded circular patch antennas [PDF]

, 1999
The performance of circular microstrip patch antennas is presented where the conducting patch and ground plane are constructed from a grid. Improved cross polarization, mode suppression, and band-width are possible, but are accompanied by lower gain and ...
Langley, Richard J., Vander Vorst, André, Hernandez-Figueroa, HE, Clasen, G., Sirkova, I, Ramos, RV, Storme, M, Huynen, Isabelle, Souza, RF   +8 more
core   +1 more source

A Wideband Multibeam Transmitarray Antenna Based on 3‐D FSS

IET Microwaves, Antennas & Propagation
This paper presents a novel method for designing a wideband dual‐polarised multibeam transmitarray antenna. First, a dual‐polarised element is implemented through a polarisation‐separating, orthogonal‐interleaved three‐dimensional frequency‐selective ...
Longfei Wang, Wanping Zhang, Yumei Chang, Bo Li, Lei Zhu   +4 more
doaj   +1 more source

Multibeam Antennas Based on 3-D Discrete Lenses With Magnified Field-of-View

IEEE Open Journal of Antennas and Propagation
A new type of beamforming network (BFN) based on three-dimensional (3D) discrete lenses is introduced and numerically analyzed in this paper as an antenna system capable of generating multiple beams within a large Field-of-View (FoV). To enhance scanning
Lisa Berretti, Renaud Loison, Esteban Menargues, Lucas Polo-Lopez, Giovanni Toso, Maria Garcia-Vigueras   +5 more
doaj   +1 more source

Beam-Switching Antenna Array Using Rotman Lens for Railway Communication at 28 GHz [PDF]

Journal of Electromagnetic Engineering and Science
In this paper, a multibeam antenna without a phase shifter is designed for railway communications in the upper 5G band (28 GHz). Railway turning angles can reach up to −20° to 20° depending on line geometry and train speed.
Hyeongjun Cho, Jaehyun Kim, Ashwini K. Arya, Chang-Woo Kim, Sanghoek Kim   +4 more
doaj   +1 more source