Results 221 to 230 of about 249,997 (379)

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

Ballistic transport enhanced heat convection at nanoscale hotspots

open access: hybrid
Shen Xu   +6 more
openalex   +1 more source

Nanoscale Graphene‐Based Ballistic Rectifiers for Detection of High Terahertz Frequency Optical Signals

open access: yesSmall Science, Volume 6, Issue 4, April 2026.
Ballistic graphene rectifier capable of operating at frequencies up to 3 THz, engineered through asymmetric nanojunction geometries in high‐mobility monolayer graphene encapsulated in hexagonal boron nitride Graphene exhibits the longest carrier mean free path of any known electronic material, yet only a few device concepts have successfully leveraged ...
Lili Shi   +4 more
wiley   +1 more source

ULF Wave Modulation of Energetic Electron Precipitation Caused by the Self‐Limiting of Space Radiation: May 2024 Superstorm Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The May 2024 geomagnetic superstorm provided the opportunity to explore how strong wave‐particle interactions affect energetic electron precipitation under intense driving. Using coordinated measurements from a balloon‐borne Timepix‐based X‐ray detector, ground‐based riometers and magnetometers, and Arase satellite observations, we identified ...
L. Olifer   +22 more
wiley   +1 more source

Indirect sciatic nerve transection from gunshot induced comminuted femoral fracture. [PDF]

open access: yesRadiol Case Rep
Garton LE   +4 more
europepmc   +1 more source

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