Results 131 to 140 of about 5,323,059 (392)
Advanced Science, EarlyView.This study presents MonoSeal, a single‐component adhesive sponge powered by the novel Autopenetrative Adhesion (APA) mechanism. Unlike traditional adhesives, which require external stimuli, APA enables strong tissue adhesion under dynamic, high‐pressure bleeding conditions. MonoSeal's ability to autonomously seal large‐size arterial defects underscores
Rong Wang +15 more
wiley +1 more source
Evidence of Doppler frequency shift between direct and bottom-reflected ray families [PDF]
, 1977 G. J. Sehn
openalex +1 more source
Advanced Science, EarlyView.An age‐adapted therapy pairs δ‐Amyrenone, a CBX7 inhibitor, with an alginate hydrogel (CSAδ) to rescue infarcted elderly hearts. CSAδ disrupts CBX7–ATP7A liquid–liquid phase separation, restores ATP7A trafficking and copper efflux, suppresses cuproptosis, supplies oxygen, scavenges ROS, promotes M2 polarization, supports angiogenesis, and enhances ...
Jun Liu +11 more
wiley +1 more source
Accuracy of carotid Doppler peak frequency analysis: Results determined by receiver operating characteristic curves and likelihood ratios [PDF]
, 1985 K.W. Johnston +5 more
openalex +1 more source
Searching for Topological Semi‐Complete Bandgap in Elastic Truss Lattices
Advanced Science, EarlyView.Ideal gapless nodes within clear bandgaps remain elusive in elastic systems, where degeneracies always hide in trivial bulk bands due to intricate modes. The work proposes a topological semi‐complete bandgap (exhibits a complete bandgap except for the inevitable topological degenerate points) in a 3D elastic truss lattice by tuning a supporting rod ...
Yiran Hao +9 more
wiley +1 more source
IET CommunicationsHere, fast time‐varying channels of high‐mobility vehicle‐to‐vehicle communications for massive multiple‐input multiple‐output orthogonal frequency division multiplexing systems are considered.
Zeyu Yan, Weile Zhang, Fuqiang Li
doaj +1 more source
Transcutaneous measurement of volume blood flow [PDF]
Blood flow velocity measurements, using Doppler velocimeter, are described. The ability to measure blood velocity using ultrasound is derived from the Doppler effect; the change in frequency which occurs when sound is reflected or transmitted from a ...
Daigle, R. E. +4 more
core +1 more source
Doppler Sonar Observations of Internal Waves: The Wavenumber-Frequency Spectrum [PDF]
, 1984 Robert Pinkel
openalex +1 more source
Micro/Nanorobots for Combating Brain Disorders: Challenges, Advances, and Perspectives
Advanced Science, EarlyView.Micro/nanorobots (MNRs) offer a transformative approach for precision therapy in brain disorders. By overcoming biological barriers and enabling controlled propulsion, targeted delivery, and real‐time imaging/tracking, MNRs pave the way toward effective, minimally invasive treatments. This review outlines the interplay between brain disease challenges,
Qi Zhang, Dong Sun
wiley +1 more source
Doppler effect and frequency-shift in optics
, 2004 A critical review of frequency-shift phenomena a la Doppler effect is presented. The importance of Fermi's theory of 1932 is pointed out, and it is argued that there exists a gap in our understanding of this phenomena at a fundamental level. Alternative mechanism in terms of photon number oscillations is suggested for polarization changing experiments.
openaire +2 more sources