Results 141 to 150 of about 12,199,946 (296)
A Fast Spectral-multigrid Poisson Solver in Non-Cartesian Geometries
The Astrophysical Journal Supplement SeriesAccurate and efficient computation of self-gravity is essential in astrophysical fluid dynamics, particularly in spherical and cylindrical geometries where large radial dynamic ranges and nonaxisymmetric structures frequently arise.
Ankush Mandal +3 more
doaj +1 more source
Monthly notices of the Astronomical Society of London
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Astronomical Society of London
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Dry‑Contact Trimming for All‑Perovskite Tandem Solar Cells via Solid‑Solution Homogenization
Advanced Energy Materials, EarlyView.Narrow‐bandgap Sn–Pb perovskites are promising bottom absorbers for all‐perovskite tandems but suffer from Sn‐rich surfaces and depth‐dependent lattice/compositional inhomogeneity. Layered‐perovskite‐assisted dry‐contact trimming removes Sn‐rich surface species and reconfigures the Sn–Pb absorber, enabling efficient charge collection, reduced voltage ...
Woocheol Han +10 more
wiley +1 more source
An improved method of dividing astronomical circles and other instruments [PDF]
Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of LondonAbstract Although the author is most ready to admit the accuracy of Mr. Troughton’s method of dividing, which was described in our Transactions for the year 1809, and by which the mural circle at Greenwich has been divided, it appeared to him that some improvement might be made in regard to simplicity and facility of execution.
openaire +2 more sources
The Geography of Success: A Spatial Analysis of Export Intensity in the Italian Wine Industry
Agribusiness, EarlyView.ABSTRACT This paper investigates the paradox of how Italy's fragmented, SME‐dominated wine industry achieves global export success. Moving beyond purely firm‐centric explanations, we test whether export intensity is spatially dependent, clustering geographically in regional ecosystems.
Nicolas Depetris Chauvin, Jonas Di Vita
wiley +1 more source
Efficient Exoplanet Imaging Simulations of the Habitable Worlds Observatory
The Astronomical JournalDirect imaging simulations of starshades and other proposed mission concepts are needed to characterize planet detection performance and inform mission design trades.
Jamila S. Taaki +4 more
doaj +1 more source
Temperature‐Tunable Cholesteric Liquid Crystal Optical Combiners for Extended Reality Applications
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Recent advancements in extended reality highlight their potential to enhance traditional displays like liquid crystal displays and organic light‐emitting diode screens. This article introduces an innovative cholesteric liquid crystal‐based optical combiner for head‐mounted displays, enabling seamless transitions between augmented reality, virtual ...
Yuanjie Xia +6 more
wiley +1 more source
Solvent Hydrogen Bonding Determines Adsorption Geometry of Trimesic Acid on Cu
Angewandte Chemie, EarlyView.Water reorients adsorbate molecules. Combined tip‐enhanced Raman spectroscopy, density functional theory and molecular dynamics simulations reveal the adsorption geometry of trimesic acid on Cu. Subtle adsorbate–substrate–solvent energy differences due to hydrogen bonding dictate molecular orientation at solid/liquid and solid/gas interfaces, providing
Anusha Lalitha +4 more
wiley +2 more sources
The Astrophysical Journal Supplement SeriesFilaments play a crucial role in providing the necessary environmental conditions for star formation, actively participating in the process. To facilitate the identification and analysis of filaments, we introduce Directional and Positional Consistency ...
Yu Jiang +10 more
doaj +1 more source
Photoelectric observations of lunar occultations at Engelhardt Astronomical Observatory
, 2020 Results of the lunar occultations observed from 1984 to 1997 at the Engelhardt Astronomical Observatory are reported. The times of lunar occultation for 63 stars, with a precision of a few milliseconds, and diameters for 12 stars have been ...
Rizvanov N., Shaimukhametov R.
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