Results 91 to 100 of about 2,245 (187)

On the Generation of Pre‐Sunrise Equatorial Plasma Bubbles in Southeast Asia During the Geomagnetic Storm of May 2024

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract A set of fresh Equatorial Plasma Bubbles (EPBs) formed during pre‐sunrise hours in the Southeast Asian sector amid the recovery phase of May 2024 geomagnetic storm. They offered new insights into their formation mechanism. This study used Total Electron Content (TEC) and Rate of TEC Index maps over Indonesia, along with ionosondes in Thailand ...
Sri Ekawati, Prayitno Abadi, Takuya Sori, Rezy Pradipta, Ihsan Naufal Muafiry, Teguh Nugraha Pratama, Agri Faturahman, Noersomadi, Febrylian Fahmi Chabibi, Punyawi Jamjareegulgarn   +9 more
wiley   +1 more source

UAV-Assisted Network Coded Cooperation by Using Height-Dependency Shaping Parameters in Nakagami-m Faded Channel

IEEE Access
In this paper, we propose a height-dependency shaping parameter ( $m$ ) and a height-dependency path-loss exponent for modelling small-scale Nakagami- $m$ fading and a large-scale path-loss model for unmanned aerial vehicle (UAV)-assisted network coded ...
Pankaj Kumar, Sudhan Majhi
doaj   +1 more source

Multi‐Scale Spatial Variations in Pacific Mantle Seismic Anisotropy: Constraints on Plate Evolution and Asthenospheric Flow

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract We present array‐scale (∼500 × 500 km) anisotropic shear‐velocity models from two Pacific ocean‐bottom seismometer (OBS) arrays of the OBS Research in the Convecting Asthenosphere (ORCA) experiment: Young ORCA (∼43 Ma) and Old ORCA (∼90 Ma). Rayleigh‐wave phase velocities spanning 5–150 s are combined with Love‐wave phase velocities from 5 to ...
Joseph H. Phillips, James B. Gaherty, Joshua B. Russell, Zachary C. Eilon, Donald W. Forsyth, Joseph S. Byrnes   +5 more
wiley   +1 more source

Learning Vertical Coordinates via Automatic Differentiation of a Dynamical Core

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Terrain‐following coordinates in atmospheric models often imprint their grid structure onto the solution, particularly over steep topography, where distorted coordinate layers can generate spurious horizontal and vertical motion. Standard formulations, such as hybrid or SLEVE coordinates, mitigate these errors by using analytic decay functions
Tim Whittaker, Seth Taylor, Elsa Cardoso‐Bihlo, Alejandro Di Luca, Alex Bihlo   +4 more
wiley   +1 more source

A Comparison Between Recursive Least-Squares (RLS) and Extended Recursive Least-Squares (E-RLS) for Tracking Multiple Fast Time Variation Rayleigh Fading Channel

Al-Khawarizmi Engineering Journal, 2017
In order to select the optimal tracking of fast time variation of multipath fast time variation Rayleigh fading channel, this paper focuses on the recursive least-squares (RLS) and Extended recursive least-squares (E-RLS) algorithms and reaches the ...
Ali Salah Mahdi
doaj  

Signal Data Stream Parameters Passing Ionospheric Communication Links With Fading Caused by Natural Clutter Phenomena

Radio Science, Volume 61, Issue 8, August 2026.
Abstract This paper explores the impact of natural phenomena on signal data transmission across various ionospheric communication channels. The study focuses on three primary phenomena: meteor trails prevalent in the middle‐ and lower‐latitude ionosphere, bubble and plume structures observed around the equatorial ionosphere, and magnetic‐storm‐induced ...
I. Bronfman, Y. Ben‐Shimol, N. Blaunstein   +2 more
wiley   +1 more source

Self‐Limiting of Artificial Electron Radiation Belts: Evidence From the Starfish Prime High‐Altitude Nuclear Explosion

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract The 1962 Starfish Prime high‐altitude 1.4‐megaton nuclear detonation injected large amounts of fission‐produced energetic electrons into the inner magnetosphere (L = 1.12), creating an intense artificial radiation belt that persisted for years. In this study, we revisit historical data from this unprecedented event to investigate the potential
L. Olifer, I. R. Mann
wiley   +1 more source

Rhythmic Structure Shapes Dyadic Self−Other Representations Through Interpersonal Action Coupling

Annals of the New York Academy of Sciences, Volume 1562, Issue 1, August 2026.
Musical rhythms can imply multiple interpretations of the beat, allowing various ways of moving together. Dyads drummed to songs, producing rhythmic ratios varying the relative temporal complexity of their movements. Stable coordination increased social bonding, which decreased with complexity.
Dhwani P. Sadaphal, Günther Koliander, Christian R. Blum, Jan Stupacher, W. Tecumseh Fitch, Peter E. Keller   +5 more
wiley   +1 more source

Robust Reed Solomon Coded MPSK Modulation

Journal of ICT Research and Applications, 2014
In this paper, construction of partitioned Reed Solomon coded modulation (RSCM), which is robust for the additive white Gaussian noise channel and a Rayleigh fading channel, is investigated.
Emir M. Husni
doaj  

Sum-Rate of Multi-User MIMO Systems with Multi-Cell Pilot Contamination in Correlated Rayleigh Fading Channel. [PDF]

Entropy (Basel), 2019
Wang M, Wang D.
europepmc   +1 more source