Results 31 to 40 of about 292,808 (255)
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar +8 more
wiley +1 more source
Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton +11 more
wiley +1 more source
[This paper is part of the Focused Collection on Astronomy Education Research.] This paper presents the cases of two doctoral students in observational astrophysics whose circumstances and experiences led them on a career trajectory out of academic ...
Allison J. Gonsalves
doaj +1 more source
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui +17 more
wiley +1 more source
On the Creation of the Universe out of Nothing
We explain how the Universe was created with no expenditure of energy or initial mass.Comment: To be presented at IWARA 2009 (4th International Workshop on Astronomy and Relativistic Astrophysics), to be held in Brazil, October ...
Adler R. +8 more
core +1 more source
Planck pre-launch status: Low Frequency Instrument calibration and expected scientific performance [PDF]
We give the calibration and scientific performance parameters of the Planck Low Frequency Instrument (LFI) measured during the ground cryogenic test campaign.
A. Gregorio +105 more
core +4 more sources
The new worlds observer: The astrophysics strategic mission concept study
We present some results of the Astrophysics Strategic Mission Concept Study for the New Worlds Observer (NWO). We show that the use of starshades is the most effective and affordable path to mapping and understanding our neighboring planetary systems, to
Cash W.
doaj +1 more source
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto +8 more
wiley +1 more source
The Unified Astronomy Thesaurus: Semantic Metadata for Astronomy and Astrophysics
Several different controlled vocabularies have been developed and used by the astronomical community, each designed to serve a specific need and a specific group.
Accomazzi, Alberto, Frey, Katie
core +1 more source
Image et mesure : deux cultures aux origines de l’astrophysique française
In the commission preparing the 1874 transit of Venus, debates about the choice of photographic techniques are illustrative of the stakes that would come to characterize the beginning of astronomy in France over the following decades.
Stéphane Le Gars
doaj +1 more source

