Results 101 to 110 of about 574,892 (287)
Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction
Advanced Science, EarlyView.Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen +5 more
wiley +1 more source
Primary beam calibration for commensal telescopes utilizing offset optics
Frontiers in Astronomy and Space SciencesIntroductionAccurate primary beam calibration is essential for precise brightness measurements in radio astronomy. The VLA Low-band Ionosphere and Transient Experiment (VLITE) faces challenges in calibration due to the offset Cassegrain optics used in ...
Emil Polisensky +3 more
doaj +1 more source
Advanced Science, EarlyView.This study employs cryogenic magneto‐terahertz nanoscopy to reveal the real‐space electrodynamics of the colossal magnetoresistance transition. By capturing the terahertz electrodynamic evolution of field‐driven spin switching, the work unveils the dissipative dynamics of emergent metallic states, providing a high‐frequency view of coupled spin‐charge ...
Samuel Haeuser +6 more
wiley +1 more source
Profiling the turbulent atmosphere and novel correction techniques for imaging and photometry in astronomy [PDF]
, 2010 The turbulent atmosphere has two detrimental effects in astronomy. The phase aberration induced by the turbulence broaden the point spread function (PSF) and limits the resolution for imaging.
OSBORN, JAMES
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New Symbiotic Stars from LAMOST DR10 Spectra and Multiband Photometry
The Astrophysical JournalThe Symbiotic star (SySt) is a long-period interacting binary system, typically consisting of a white dwarf (WD) and a red giant surrounded by a nebula. These systems are natural astrophysical laboratories for investigating binary star evolution. In this
Jing Chen +7 more
doaj +1 more source
Observational evidence for enhanced magnetic activity of superflare stars
Nature Communications, 2016 Superflares are large explosive events on stellar surfaces, much larger than solar flares, but it remains unclear whether they share the same origin. Here, the authors analysed 48 superflare stars and determine the relation between their chromospheric ...
Christoffer Karoff +13 more
doaj +1 more source
Advanced Science, EarlyView.Ultraviolet (UV) imagers are important for a variety of applications but often require dedicated semiconductor process flows. Here, a versatile capacitive CMOS platform is transformed into a visible‐blind, multispectral UV imager through post‐CMOS functionalization with solution‐processed metal‐oxide nanoparticles. The UV‐induced photodielectric effect
Suman Kundu +5 more
wiley +1 more source
Kirkpatrick Baez X-ray optics for astrophysics: Recent status
, 2020 © 2018 Astronomical Institute, Slovak Academy of Sciences. X-ray optics in Kirkpatrick Baez arrangement represent promising alternative to Wolter optics in common use.
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Observing techniques for astronomical laser guide star adaptive optics [PDF]
, 1998 We discuss astronomical observing requirements and their implementation using sodium-layer laser guide star adaptive optics. Specific issues requiring implementation include the ability to place the astronomical object at different locations within the ...
Max, C. E. +4 more
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Identifying ∼20,000 Li-rich Giants in the LAMOST Low-resolution Survey
The Astrophysical Journal Supplement SeriesLi-rich giants serve as valuable tracers of stellar evolution and surface enrichment processes, for which a statistically large and homogeneous sample is crucial. Using the massive low-resolution ( R ∼ 1800) spectroscopic dataset from the Large Sky Area
Ming-Yi Ding +10 more
doaj +1 more source