Results 211 to 220 of about 48,988 (289)

Velocity estimation in GPR data based on diffraction analysis: Methodology and application to Antarctic firn

Near Surface Geophysics, Volume 24, Issue 2, Page 170-186, April 2026.
Abstract This study presents a methodological framework for estimating electromagnetic wave velocities in ground‐penetrating radar (GPR) data based exclusively on the analysis of diffractions. The approach integrates diffraction separation using the plane wave destruction algorithm and subsequent velocity refinement through the residual diffraction ...
Ian E. Vogado, José Jadsom S. Figueiredo, Jandyr M. Travassos, Saulo S. Martins   +3 more
wiley   +1 more source

Fourier-plane wavefront and SLM aberration characterization via iterative scanning of beam deflector segments. [PDF]

Sci Rep
Wojcik AJ, Singh D, Rakshit A, Joyce HJ, Wilkinson TD.   +4 more
europepmc   +1 more source

Ultraviolet Extinction of Metal Oxide Nanoparticles Imaged at the Single Nanoaggregate Level

Particle &Particle Systems Characterization, Volume 43, Issue 4, April 2026.
Metal oxide nanoparticles are at the core of many nanotechnology applications, yet their tendency to form complex nanoaggregates imposes the development of alternative characterization methods. UV microscopy is introduced here to monitor the extinction cross‐section of TiO2, SnO2 and Fe2O3 nanoparticles with single nanoaggregate resolution of ...
Xinyu Fang, Luca Polacchi, Francesca Zuttion, Clément Larquet, Antonin Moreau, Antoine Montaux‐Lambert, Hervé Rigneault, Thomas Bornschlögl, Jérôme Wenger   +8 more
wiley   +1 more source

Rapid wavefront shaping using an optical gradient acquisition. [PDF]

Nat Commun
Monin S, Alterman M, Levin A.
europepmc   +1 more source

Landslide Activity in the European Alps ‐ Part 1: A Machine Learning Based Instrumental Catalog From the Analysis of Seismological Data

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 4, April 2026.
Abstract Landslides in the European Alps are a growing concern in the context of climate change. However, landslide catalogs for the European Alps remain incomplete, often lacking precise timing and containing few, if any, entries for remote areas.
Charlotte Groult, Clément Hibert, Jean‐Philippe Malet, Anthony Lomax, Floriane Provost   +4 more
wiley   +1 more source

Phase Control Mechanisms in Metasurfaces: From Static Approaches to Active and Space-Time Modulation. [PDF]

Sensors (Basel)
Haroon M, Kim SW, Choi DY.
europepmc   +1 more source

OH Airglow for Ionospheric Seismology Applications—From Instrumental Noise Characterization to Rayleigh Waves Detection Threshold

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Airglow layers are powerful tracers of upper‐atmosphere dynamics because of their sensitivity to a broad spectrum of atmospheric wave phenomena. Seismic activity, and in particular Rayleigh waves, constitutes a forcing mechanism capable of generating infrasonic waves in the atmosphere.
P.‐Y. Froissart, P. Lognonné, P. Simoneau, K. Nishida, T. Ohminato   +4 more
wiley   +1 more source

Design and Analysis of Optical-Mechanical-Thermal Systems for a High-Resolution Space Camera. [PDF]

Sensors (Basel)
Liu X, Jiao J, Gu K, Li H, Zhang W, Zhang S, Zhao W, Pei Z, Zhang B, Cheng Z, Yang F.   +10 more
europepmc   +1 more source

Investigating the Detectability of Body Wave Phases From Tidal Ice Cracking Events on Titan With the Dragonfly Short‐Period Seismometer

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Detecting seismic activity on Saturn's icy moon Titan during the Dragonfly mission could provide crucial information on its internal structure. The geological complexity of the moon's surface suggests significant cyclic tidal deformation, likely leading to the fracturing of the ice shell.
L. Delaroque, T. Kawamura, A. Lucas, S. Rodriguez, K. Onodera, H. Shiraishi, R. Yamada, S. Tanaka, M. P. Panning, R. D. Lorenz   +9 more
wiley   +1 more source

Image Matching Algorithm-Driven Multi-Beam Customized Meta-Device. [PDF]

Materials (Basel)
Cui X, Liu D, Wu B, Zeng H, Qin Y, Ren G, Wang G, Cai T.   +7 more
europepmc   +1 more source