Results 201 to 210 of about 81,210 (254)

Single-shot hyperspectral wavefront imaging. [PDF]

Nat Commun
Blochet B, Lebas N, Berto P, Papadopoulos D, Guillon M.   +4 more
europepmc   +1 more source

The economic burden of diabetes-related visual impairment and blindness in Saudi Arabia. [PDF]

Health Econ Rev
Hamdy Elsisi G, Alhumaidan A, Alturaiki A, Abdul Kareem H, Abu-Shraie N, Al Judaibi R, Alshehri S.   +6 more
europepmc   +1 more source

Astronomical Observations in Support of Planetary Entry-Probes to the Outer Planets. [PDF]

Space Sci Rev
Buratti BJ, Orton GS, Roman MT, Momary T, Bauer JM.   +4 more
europepmc   +1 more source

A decade of sub-arcsecond imaging with the International LOFAR Telescope. [PDF]

Astrophys Space Sci
Morabito LK, Jackson N, de Jong J, Escott E, Groeneveld C, Mahatma V, Petley J, Sweijen F, Timmerman R, van Weeren RJ.   +9 more
europepmc   +1 more source

Magnetic star-planet interaction in the young exoplanet system DS Tucanae Ab

Santos Ld, Owen J, Duvvuri G, Loyd ROP, Vidotto A, Presa A, Bourrier V, King G, Airapetian V, Ehrenreich D, France K, Lendl M, Lothringer J, Nielsen L.   +13 more
europepmc   +1 more source

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Wide field x-ray telescope mission

SPIE Proceedings, 2008
The Wide Field X-Ray Telescope (WFXT) will carry out an unprecedented X-ray survey of galaxy clusters and groups, AGNs and QSOs, and galaxies. WFXT is a medium-class strategic mission that will address key questions in both Cosmic Origins and Physics of the Cosmos.
Murray SS, Norman C, Ptak A, Giacconi R, Weisskopf M, Ramsey B, Bautz M, Vikhlinin A, Brandt N, ROSATI, Piero, Weaver H, Allen S, Flanagan K.   +12 more
openaire   +1 more source

The SkyMapper wide field telescope

SPIE Proceedings, 2006
The SkyMapper wide field telescope is currently in production by EOS and is scheduled for first light in Q1 2007. This telescope will produce high quality images over a 3.4 degree diameter flat field for wavebands from 310 nm to 1000 nm. This paper discusses the optical and opto-mechanical design and tolerancing of the SkyMapper Telescope.
Andrew Rakich, Mark Blundell, Gordon Pentland, Rob Brunswick, Terry Ferguson, Jim Waltho   +5 more
openaire   +1 more source

Wide-field Fizeau imaging telescope: experimental results

Applied Optics, 2006
A nine-aperture, wide-field Fizeau imaging telescope has been built at the Lockheed-Martin Advanced Technology Center. The telescope consists of nine, 125 mm diameter collector telescopes coherently phased and combined to form a diffraction-limited image with a resolution that is consistent with the 610 mm diameter of the telescope. The phased field of
R L, Kendrick, Jean-Noel, Aubrun, Ray, Bell, Robert, Benson, Larry, Benson, David, Brace, John, Breakwell, Larry, Burriesci, Eric, Byler, John, Camp, Gene, Cross, Peter, Cuneo, Peter, Dean, Ramji, Digumerthi, Alan, Duncan, John, Farley, Andy, Green, Howard H, Hamilton, Bruce, Herman, Kris, Lauraitis, Erich, de Leon, Kenneth, Lorell, Rob, Martin, Ken, Matosian, Tom, Muench, Mel, Ni, Alice, Palmer, Dennis, Roseman, Sheldon, Russell, Paul, Schweiger, Rob, Sigler, John, Smith, Richard, Stone, David, Stubbs, Gregg, Swietek, John, Thatcher, C, Tischhauser, Harvey, Wong, Vassilis, Zarifis, Kurt, Gleichman, Rick, Paxman   +40 more
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Single-acquisition wide-field superresolution for telescopes

Applied Optics, 2016
A simple optical setup is introduced here that is capable of improving the diffraction-limited angular resolution of a telescope at minimal cost to image quality. The system consists of, at minimum, an axicon and a convex lens located in the optical path of the telescope, which can increase the angular resolution by up to 38%.
Steve, Wereley, Yuxing, Zhang, Jian-Wei, Khor, Craig, Snoeyink   +3 more
openaire   +2 more sources