Results 191 to 200 of about 295,900 (371)

Dynamical Analysis of the Redshift Drift in FLRW Universes

open access: yesUniverse
Redshift drift is the phenomenon whereby the observed redshift between an emitter and observer comoving with the Hubble flow in an expanding FLRW universe will slowly evolve—on a timescale comparable to the Hubble time.
Francisco S. N. Lobo   +3 more
doaj   +1 more source

Hubble Redshift

open access: yes, 2000
8 pages, 4 ...
Sumner, W. Q., Vityaev, E. E.
openaire   +2 more sources

Adaptive Epitaxy of C‐Si‐Ge‐Sn: Customizable Bulk and Quantum Structures

open access: yesAdvanced Materials, EarlyView.
This work pushes the boundaries of epitaxy by achieving all‐group‐IV semiconductor heterostructures and extensive characterization. The alloys open new research topics in material properties investigation for next‐generation electronic and optoelectronic device technologies.
Omar Concepción   +15 more
wiley   +1 more source

Archetype-based Redshift Estimation for the Dark Energy Spectroscopic Instrument Survey

open access: yesThe Astronomical Journal
We present a computationally efficient galaxy archetype-based redshift estimation and spectral classification method for the Dark Energy Survey Instrument (DESI) survey.
Abhijeet Anand   +48 more
doaj   +1 more source

Highly Efficient Platinum‐Free Photocatalytic Hydrogen Evolution From Low‐cost Conjugated Polymer Nanoparticles

open access: yesAdvanced Materials, EarlyView.
Platinum‐free hydrogen photocatalysis is achieved using dibenzothiophene‐S,S‐sulfoxide‐based conjugated polymers, self‐assembled into nanoparticles via nanoprecipitation. Through side chain engineering and donor–acceptor design, these materials reach a hydrogen evolution rate of 209 mmol g⁻¹ h⁻¹. The structure–function insights presented here establish
Alexandre Holmes   +11 more
wiley   +1 more source

HETDEX-LOFAR Spectroscopic Redshift Catalog

open access: yesThe Astrophysical Journal
We combine the power of blind integral field spectroscopy from the Hobby–Eberly Telescope (HET) Dark Energy Experiment (HETDEX) with sources detected by the Low Frequency Array (LOFAR) to construct the HETDEX-LOFAR Spectroscopic Redshift Catalog ...
Maya H. Debski   +10 more
doaj   +1 more source

Plasmonic MoO3−x/Ag Photocatalyst for the Fixation of N2 from Air with the Solar Energy Conversion Efficiency Reaching over 0.28%

open access: yesAdvanced Materials, EarlyView.
A plasmonic MoO3−x/Ag photocatalyst is designed for efficient N2 photofixation. It exhibits superior light absorption, a Schottky‐barrier‐free feature, and plasmonic photothermal conversion. A diphase reaction platform is designed by loading the photocatalyst in a polymer film to suppress the light absorption of water and accelerate the mass transfer ...
Jingtian Hu   +7 more
wiley   +1 more source

Phase Distribution in Quasi‐2D Dion Jacobson Perovskite Dictates Ultrafast Energy Transfer and Directional Charge Transport

open access: yesAdvanced Materials Interfaces, EarlyView.
An efficient charge transfer and energy transfer at heterostructure interfaces is vital for optoelectronics. Quasi‐2D perovskites with varying layer thicknesses can create multiple interfaces, hindering charge transfer and energy transfer. Cesium Iodide (CsI) can help to redistribute these phases strategically, thereby enhancing energy transfer and ...
Nilesh G. Saykar   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy