Results 81 to 90 of about 216,057 (315)
Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal
Advanced Functional Materials, EarlyView.Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland +9 more
wiley +1 more source
A new empirical fit to galaxy rotation curves
Frontiers in Astronomy and Space SciencesWe present a new empirical model for galaxy rotation curves that introduces a velocity correction term ω, derived from observed stellar motion and anchored to Keplerian baselines.
David C. Flynn, Jim Cannaliato
doaj +1 more source
Partitioning the Galactic halo with Gaussian Mixture Models [PDF]
, 2021 Xilong Liang +3 more
openalex +1 more source
On the relative ages of the α-rich and α-poor stellar populations in the Galactic halo [PDF]
, 2014 We study the ages of $\alpha$-rich and $\alpha$-poor stars in the halo using a sample of F and G dwarfs from the Sloan Digital Sky Survey (SDSS). To separate stars based on [$\alpha$/Fe], we have developed a new semi-empirical spectral-index based method
K. Hawkins +3 more
semanticscholar +1 more source
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
DOES SEGUE/SDSS INDICATE A DUAL GALACTIC HALO? [PDF]
, 2014 We re-examine recent claims of observational evidence for a dual Galactic halo in SEGUE/SDSS data, and trace them back to improper error treatment and neglect of selection effects. In particular, the detection of a vertical abundance gradient in the halo
R. Schoenrich, M. Asplund, L. Casagrande
semanticscholar +1 more source
Advanced Healthcare Materials, EarlyView.Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen +7 more
wiley +1 more source
A HADRONIC–LEPTONIC MODEL FOR THE FERMI BUBBLES: COSMIC-RAYS IN THE GALACTIC HALO AND RADIO EMISSION [PDF]
, 2014 We investigate non-thermal emission from the Fermi bubbles in a hadronic model. Cosmic-ray (CR) protons are accelerated at the forward shock of the bubbles.
Y. Fujita, Y. Ohira, R. Yamazaki
semanticscholar +1 more source
The Promise of Solid Lubricants for a Sustainable Future
Advanced Materials, EarlyView.Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher +7 more
wiley +1 more source
Plasma Wave-particle Acceleration as the Origin of the Galactic Gamma-Ray Bubbles
The Astrophysical JournalThe “Fermi bubbles” are two giant gamma-ray emitting configurations in the form of bubbles that extend above and below the Galactic plane. They are characterized by a smooth surface, sharp edges, and an almost flat intensity distribution.
A. Cardinali +3 more
doaj +1 more source