Zobrazeno 1 - 10
of 22
pro vyhledávání: '"J. A. Schier"'
Autor:
J. Alan Schier, Martin Wilkinson, Éric Depagne, Darragh O'Donoghue, Lisa A. Crause, Janus D. Brink, Kenneth H. Nordsieck, Ockert J. Strydom, Wouter Lochner, Jonathan Love
Publikováno v:
SPIE Proceedings.
Liquid lens coupling provides excellent transmission efficiency when compared to multilayer coatings especially for applications where broadband transmission is required. However, long term reliability of liquid coupling is difficult to achieve. This
Autor:
J. G. Schier
Publikováno v:
Academic Emergency Medicine. 11:329-334
Autor:
Katherine E. McGowan, J. Wren, E. S. Rykoff, Timothy A. McKay, M. A. Phillips, W. T. Vestrand, D. Smith, J. A. Schier, S. L. Marshall, Donald E. Casperson, Robert Kehoe, Michael C. B. Ashley, Carl W. Akerlof, P. R. Wozniak, Harland W. Epps
Publikováno v:
Publications of the Astronomical Society of the Pacific. 115:132-140
The observation of a prompt optical flash from GRB990123 convincingly demonstrated the value of autonomous robotic telescope systems. Pursuing a program of rapid follow-up observations of gamma-ray bursts, the Robotic Optical Transient Search Experim
Autor:
Mark P. Mulligan, Curtis Bartosz, Kenneth H. Nordsieck, T. B. Williams, Kristine Garot, Gregory Mosby, Stephen A. Smee, Briana L. Indahl, J. Christopher Clemens, David A. H. Buckley, Jeffrey P. Wong, Donald J. Thielman, Harland W. Epps, Jeffrey W. Percival, William P. Mason, Marsha J. Wolf, Sujit Punnadi, Pravin Chordia, Mark W. Werner, Ron J. Koch, Douglas P. Adler, Matthew A. Bershady, Anamparambu N. Ramaprakash, Andrew I. Sheinis, Michael P. Smith, J. Alan Schier, Mahesh P. Burse, Kurt P. Jaehnig
Publikováno v:
SPIE Proceedings.
The Robert Stobie Spectrograph Near Infrared Instrument (RSS-NIR), a prime focus facility instrument for the 11-meter Southern African Large Telescope (SALT), is well into its laboratory integration and testing phase. RSS-NIR will initially provide i
Autor:
D. Hullinger, Katherine E. McGowan, Jack Tueller, Robert White, J. W. Asa, P. R. Wozniak, Jay Cummings, David Palmer, H. Davis, A. M. Parsons, Kirsty J. McLean, E. E. Fenimore, Scott Barthelmy, W. T. Vestrand, J. A. Schier, C. B. Markwardt, T. Sakamoto, M. Galassi, Neil Gehrels, Jim Wren, S. M. Evans, Hans A. Krimm, Donald E. Casperson
Publikováno v:
Nature. 435:178-180
The prompt optical emission that arrives with the γ-rays from a cosmic γ-ray burst (GRB) is a signature of the engine powering the burst, the properties of the ultra-relativistic ejecta of the explosion, and the ejecta's interactions with the surro
Publikováno v:
SPIE Proceedings.
We report on extensive laboratory testing of the optical compatibility of immersion fluids often used in astronomical instrumentation. A strong near-ultraviolet absorption feature is seen after incubating several fluids with polyurethane often used i
Autor:
Kenneth H. Nordsieck, J. Alan Schier, T. B. Williams, Darragh O'Donohue, Michael P. Smith, James O'Connor, Jeffrey W. Percival, E. B. Burgh
Publikováno v:
SPIE Proceedings.
The Prime Focus Imaging Spectrograph (PFIS) is a first light instrument for the Southern African Large Telescope (SALT). PFIS is a versatile instrument designed to operate in a number of scientific modes by utilizing volume phase holographic gratings
Autor:
K B, Allen, D A, Heimansohn, R J, Robison, J J, Schier, G L, Griffith, E B, Fitzgerald, J H, Isch, S, Abraham, C J, Shaar
Publikováno v:
The heart surgery forum. 3(4)
Risk factors for leg wound complications following traditional saphenectomy have included: obesity, diabetes, female gender, anemia, age, and peripheral vascular disease. Use of an endoscopic saphenectomy technique may modify the risk factor profile
Autor:
Brian M. Sutin, Andrew I. Sheinis, David F. Hilyard, J. A. Schier, Harland W. Epps, Jeffrey P. Lewis
Publikováno v:
SPIE Proceedings.
The Echellette Spectrograph and Imager (ESI), currently being delivered for use at the Cassegrain focus of the Keck II telescope employs an all-spherical, 308 mm focal length f/1.07 Epps camera. The camera consists of 10 lens elements in 5 groups: an
Publikováno v:
SPIE Proceedings.
We describe a new telescope encoder that overcomes several traditional problems. The system uses a camera, a ruled scale, and a robust image processing algorithm to determine angular position. The ruled scale can be any of a variety of materials. The