Results 31 to 40 of about 128,880 (312)

Hammering with the telescope

open access: yesFrontiers in Artificial Intelligence, 2022
The rapid pace in which various Artificial Intelligence and Machine Learning tools are developed, both within the research community and outside of it, often discourages the involved researchers from taking time to consider potential consequences and applications of the technical advances, especially the unintended ones.
openaire   +3 more sources

Low Vision Aids: Visual Outcomes and Barriers in Children with Low Vision

open access: yesDelhi Journal of Ophthalmology, 2019
Aims: To study the demographic profile, cause of low vision, visual outcome and the barriers in using low vision aids (LVA). Design: Prospective observational clinical study.
V. R. Venkataramanan   +5 more
doaj   +1 more source

Active optics: deformable mirrors with a minimum number of actuators [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
We present two concepts of deformable mirror to compensate for first order optical aberrations. Deformation systems are designed using both elasticity theory and Finite Element Analysis in order to minimize the number of actuators.
Laslandes M., Hugot E., Ferrari M.
doaj   +1 more source

Modified Method to Detect the Turbulent Layers in the Atmospheric Boundary Layer for the Large Solar Vacuum Telescope

open access: yesAtmosphere, 2021
A method to detect the atmospheric turbulent layers using a single Shack–Hartmann wavefront sensor is discussed. In order to determine the height distribution of the atmospheric turbulence above a telescope, we register the wavefront distortions at ...
Artem Yurievich Shikhovtsev   +6 more
doaj   +1 more source

Wavelength-Dependent Seeing Systematically Changes the Normalized Slope of Telescopic Reflectance Spectra of Mercury

open access: yesRemote Sensing, 2022
Telescopic observations of Mercury consistently report systematic variations of the normalized spectral slope of visible-to-near-infrared reflectance spectra.
Kay Wohlfarth, Christian Wöhler
doaj   +1 more source

THE ASTRONOMICAL TELESCOPE [PDF]

open access: yesSchool Science and Mathematics, 1913
n ...
openaire   +1 more source

Discrete Time Dynamic Model for Telescope Auto-Guiding System [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2007
In the auto-guiding system for obtaining a long exposure astrophotography, CCD camera is usually used for measuring guide errors which are affected by optical dispersion and mechanical disturbances.
Joon Hwa Lee
doaj   +1 more source

Freeform Wide Field-of-View Spaceborne Imaging Telescope: From Design to Demonstrator

open access: yesSensors, 2022
Wide field-of-view imaging optics offer a huge potential for space-based Earth observation enabling the capture of global data. Reflective imaging telescopes are often favored, as they do not show chromatic aberrations and are less susceptible to ...
Luca Schifano   +7 more
doaj   +1 more source

PracticalAstronomyCrew/telescope-models: Aperture Obstruction Models [PDF]

open access: yes, 2021
The initial release of the code and 3D models used for modeling the obstruction of the aperture(s) of the Gratama telescope by the hemispherical dome of the Blaauw ...
Jake Noel-Storr, Mick Veldhuis
core   +1 more source

Atmospheric Conditions within Big Telescope Alt-Azimuthal Region and Possibilities of Astronomical Observations

open access: yesRemote Sensing, 2022
The paper presents the results of analysis of astroclimatic conditions in the Big Telescope Alt-azimuthal (BTA) region (40°N–50°N; 35°E–55°E). Using data from the European center for medium-range weather forecast ReAnalysis (ERA-5), we estimated the ...
Artem Yu. Shikhovtsev   +8 more
doaj   +1 more source

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