Results 101 to 110 of about 345,531 (342)
Laser-driven high-power X- and gamma-ray ultra-short pulse source
, 2008 A novel ultra-bright high-intensity source of X-ray and gamma radiation is suggested. It is based on the double Doppler effect, where a relativistic flying mirror reflects a counter-propagating electromagnetic radiation causing its frequency ...
A. G. Zhidkov +7 more
core +2 more sources
Advanced Science, EarlyView.This study reveals that the E3 ubiquitin ligase TRIM56 exacerbates neuronal ferroptosis and brain damage by mediating K48‐linked ubiquitination and degradation of KLF4, leading to suppression of the xCT/GSH/GPX4 axis. Targeting TRIM56 alleviates cerebral ischemia‐reperfusion injury in vivo and in vitro, highlighting its therapeutic potential.
Qiangping Wang +15 more
wiley +1 more source
Advanced Science, EarlyView.This work introduces a beamforming‐based method to generate acoustic images from fiber‐optic distributed acoustic sensing (DAS) data. By performing 2D scanning around the sensing fiber, the approach enables near‐field imaging and localization of acoustic sources, even in regions distant from the fiber. A data‐driven DAS channel selection improves image
Marcelo A. Soto +1 more
wiley +1 more source
IDENTIFICATION OF AIR RADAR TARGETS USING THE DOPPLER EFFECT FROM A HEATED JET ENGINE
Вестник Дагестанского государственного технического университета: Технические науки, 2018 Objectives The aim of the study is to develop a methodology for identifyingaircraft by the deflections of an electromagnetic radar beam by a heated jet engine. Methods Atoms of the crystal lattice of the metallic parts of the operating jet engine will be
P. Sh. Adalaeva +3 more
doaj +1 more source
Christian Doppler and the Doppler effect
Eos, Transactions American Geophysical Union, 1984 A summary is given of Doppler's life and career. He was born 180 years ago on November 29, 1803, in Salzburg, Austria. He died on March 17, 1853 in Venice. The effect bearing his name was first announced in a presentation before the Royal Bohemian Society of the Sciences in Prague on May 25, 1842.
openaire +1 more source
Advanced Science, EarlyView.Human participants with early‐ or chronic‐stage tendinopathy and healthy controls are investigated using ultrasound Doppler, 3T and 7T MRI, and tendon biopsies. Tendon swelling and hyperperfusion are evident early, while vascular growth and extracellular matrix changes are most pronounced in chronic tendinopathy. Early intervention may provide superior
Max F. R. Merkel +11 more
wiley +1 more source
Spatiotemporal Acoustic Communication by a Single Sensor via Rotational Doppler Effect. [PDF]
Adv Sci (Weinh), 2023 Zhang C, Jiang X, He J, Li Y, Ta D.
europepmc +1 more source
, 2012 The spatially averaged density of states, , of an unconventional d-wave superconductor is magnetic field dependent, proportional to $H^{1/2}$, owing to the Doppler shift of quasiparticle excitations in a background of vortex supercurrents[1,2].
Dai, Pengcheng +6 more
core +1 more source
Advanced Science, EarlyView.A bioinstructive injectable hydrogel enables sustained release of stromal cell–derived factor‐1 alpha (SDF‐1α) and stable retention of laminin through ionic and hydrophobic interactions. This dual‐signaling matrix promotes endogenous stem cell recruitment and training, supports angiogenesis, and enhances intrinsic regenerative processes in ischemic ...
Yurim Kim, Young‐Min Kim
wiley +1 more source
Rotating axis measurement based on rotational Doppler effect of spliced superposed optical vortex. [PDF]
Nanophotonics, 2023 Zhu X +7 more
europepmc +1 more source