Results 61 to 70 of about 160,396 (265)

Validation and Testing of the CROBAR 3D Coronal Reconstruction Method with a MURaM Simulation

open access: yesThe Astrophysical Journal, 2023
I report on validation and testing of a novel 3D reconstruction method than can obtain coronal plasma properties from a single snapshot perspective.
Joseph Plowman
doaj   +1 more source

Data modeling applications in space science and astronomy

open access: yes, 2009
This Portfolio Thesis introduces seventeen scientific and technical papers that present unique numerical and analytical algorithms that can be applied to any type of data and imagery, independent of scene content, but are developed and illustrated here in the context of astronomy and space sciences.
openaire   +2 more sources

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

open access: yesAdvanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King   +3 more
wiley   +1 more source

TESS asteroseismology of the known red-giant host stars HD 212771 and HD 203949 [PDF]

open access: yes, 2019
International ...
Adibekyan, Vardan   +47 more
core   +5 more sources

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

open access: yesAdvanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya   +22 more
wiley   +1 more source

Data Models for Radio Astronomy in the VO

open access: yes, 2009
Data Models are an essential part of automatic data processing, but even more so when trying to tie together data coming from many different data sources, as is the case for the International Virtual Observatory. In this talk we will review the different data models used in the IVOA, which parts of that Data Modelling work are still incomplete ...
openaire   +2 more sources

ALMA Observations of SPT-Discovered, Strongly Lensed, Dusty, Star-Forming Galaxies

open access: yes, 2013
We present Atacama Large Millimeter/submillimeter Array (ALMA) 860 micrometer imaging of four high-redshift (z=2.8-5.7) dusty sources that were detected using the South Pole Telescope (SPT) at 1.4 mm and are not seen in existing radio to far-infrared ...
Aguirre, J. E.   +66 more
core   +1 more source

Analysis of CMB foregrounds using a database for Planck [PDF]

open access: yes, 2000
Within the scope of the Planck IDIS (Integrated Data Information System) project we have started to develop the data model for time-ordered data and full-sky maps.
Banday, A. J.   +7 more
core   +2 more sources

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

open access: yesAdvanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia   +7 more
wiley   +1 more source

Prototyping scalable digital signal processing systems for radio astronomy using dataflow models

open access: yes, 2012
There is a growing trend toward using high-level tools for design and implementation of radio astronomy digital signal processing (DSP) systems. Such tools, for example, those from the Collaboration for Astronomy Signal Processing and Electronics ...
Bhattacharyya, Shuvra S.   +3 more
core   +1 more source

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