Results 81 to 90 of about 2,626,294 (294)

Lessons from the High-resolution Spectroscopy of AW UMa and ϵ CrA: Is the Lucy Model Valid?

open access: yesThe Astronomical Journal
A re-examination of high-resolution spectral monitoring of the W UMa–type binaries AW UMa and ϵ CrA casts doubt on the widely utilized L. B. Lucy model of contact binaries.
Slavek M. Rucinski
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Detection of Contact Binary Candidates Observed By TESS Using the Autoencoder Neural Network

open access: yesThe Astronomical Journal
A contact binary may be the progenitor of a red nova that eventually produces a merger event and have a cut-off period of around 0.2 days. Therefore, a large number of contact binaries is needed to search for the progenitor of red novae and to study the ...
Xu Ding   +3 more
doaj   +1 more source

Roche Configurations of Two Near-Contact Binaries do CAS and SW Lyn [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1999
Light curves of two near-contact binaries DO Cas and SW Lyn are analyzed to investigate their Roche configurations. We made new BVR observations for DO Cas and employed the published observation data for SW Lyn.
Ho-Il Kim   +4 more
doaj  

Near-Contact Binaries on the Path to Contact Binaries

open access: yesActa Astronomica
22 pages, 5 figures, to appear in Acta ...
openaire   +2 more sources

An international survey of daily disposable contact lens prescribing

open access: yes, 2013
Free to read\ud \ud Purpose\ud \ud The aim was to determine the extent of daily disposable contact lens prescribing worldwide and to characterise the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Up to 1,000 survey forms were sent ...
Morgan, Philip B.   +3 more
core   +1 more source

Photometric study of a marginal contact binary SY Hor [PDF]

open access: yes, 2017
32nd International Physics Congress of Turkish-Physical-Society (TPS) -- SEP 06-09, 2016 -- Bodrum, TURKEYIn this study, we present light curve analysis of a southern contact binary SY lior.
Yildirim, Muhammed Faruk   +3 more
core   +1 more source

Multimodal Optoelectronic Synapses for Neuromorphic Intelligence: Coupling Light, Electrical, Thermal, and Beyond

open access: yesAdvanced Functional Materials, EarlyView.
This review revisits optoelectronic neuromorphic devices that extend from unimodal sensing toward multimodal perception. Five types of stimuli‐to‐output information flow that are classified based on the device roles within the system and applications are summarized and discussed.
Jihyun Shin   +6 more
wiley   +1 more source

Fundamental Parameters for Totally Eclipsing Contact Binaries Observed by TESS

open access: yesThe Astrophysical Journal
Totally eclipsing contact binaries provide a unique opportunity to accurately determine mass ratios through photometric methods alone, eliminating the need for spectroscopic data.
Xu Ding   +7 more
doaj   +1 more source

On the properties of contact binary stars

open access: yes, 2004
We have compiled a catalogue of light curve solutions of contact binary stars. It contains the results of 159 light curve solutions. The properties of contact binary stars were studied using the catalogue data. 
As is well known since Lucy's (
P. Klagyivik, Sz. Csizmadia
core   +1 more source

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