Results 191 to 200 of about 22,098 (322)

The Effect of Voxel Volume and Voxel Shape on Cardiac Diffusion Tensor Imaging Metrics

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 4, Page 2063-2077, April 2026.
ABSTRACT Purpose Cardiac diffusion tensor imaging (cDTI) is signal‐to‐noise ratio (SNR)‐limited due to diffusion signal attenuation, long echo times from gradient moment nulling, and moderate myocardial T 2$$ {}_2 $$. Increasing voxel volume improves SNR but reduces spatial sensitivity and introduces physiological bias.
Ariel J. Hannum   +3 more
wiley   +1 more source

Distant Storms Can Affect Seismic Noise Crustal Monitoring

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Using seismic noise interferometry to monitor the Earth's interior relies on continuous seismic wavefields produced by stable, invariant sources. In numerous applications, this condition is relaxed, arguing that secondary scattering effects render the late coda source independent.
Jinwu Li   +4 more
wiley   +1 more source

Monitoring Near‐Surface Changes Using Anthropogenic Seismic Vibrations

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract The abundance of anthropogenic seismic noise provides a valuable resource for monitoring dynamic subsurface property changes. We utilize railway and wind turbine‐induced vibrations recorded by a geophone array to estimate surface wave attenuation and velocity in the underlying glacial deposits of Illinois.
Sayan Mukherjee   +3 more
wiley   +1 more source

Ultrafast Dynamics of Organic Exciton–Polaritons

open access: yesNanophotonics, Volume 15, Issue 6, 27 March 2026.
This work reveals the conditions required to capture the coherent dynamics of organic exciton–polaritons. The ultrafast relaxation of these collective hybrid states is uniquely observed only when they sit beyond the tail of the molecular absorption. In this condition, they do not enter into equilibrium with intracavity dark states, raising questions ...
Soham Mukherjee   +3 more
wiley   +1 more source

Experimental wounding models of different bullet types and diameters on extremities. [PDF]

open access: yesUlus Travma Acil Cerrahi Derg
Arslan I   +4 more
europepmc   +1 more source

Helically Magnetized Plasma: From Photonic Fermi‐Arc Metal to Chirality‐Free Uniaxial Medium

open access: yesNanophotonics, Volume 15, Issue 5, 16 March 2026.
A helically modulated magnetic field in magnetized plasma realizes a photonic Fermi‐arc metal, enabling full analytical tracking of Weyl node evolution. As modulation strengthens, opposing‐chirality Fermi arcs hybridize and recombine, yielding a chirality‐free uniaxial optical medium without conventional node annihilation.
Wanxia Huang   +4 more
wiley   +1 more source

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