Results 81 to 90 of about 669,031 (383)

Telescopic Denture [PDF]

The Open Dentistry Journal, 2018
Aim:This article explains the concept of telescopic denture.Procedure:It describes the different types of telescopic attachment (or double crown), and provides an overview of the advantages and the disadvantages of this type of prosthodontic treatment.Conclusion:The indications and the clinical applications of telescopic denture are discussed.
Hakkoum, Mohammad Ayham, Wazir, Ghassan
openaire   +2 more sources

L’observatoire de Juvisy-sur-Orge, l’« univers d’un chercheur » à sauvegarder

In Situ, 2017
In 1882, Camille Flammarion was given a property at Juvisy-sur-Orge by one of his admirers. He transformed the house into an astronomical observatory and installed what was for its day advanced scientific equipment.
Colette Aymard, Laurence-Anne Mayeur
doaj   +1 more source

THE NUCLEAR SPECTROSCOPIC TELESCOPE ARRAY (NuSTAR) HIGH-ENERGY X-RAY MISSION [PDF]

Astronomical Telescopes and Instrumentation, 2013
The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 2012 June 13, is the first focusing high-energy X-ray telescope in orbit. NuSTAR operates in the band from 3 to 79 keV, extending the sensitivity of focusing far beyond the ∼10 keV ...
F. Harrison, W. Craig, F. Christensen, C. Hailey, Will Zhang, S. Boggs, D. Stern, W. R. Cook, K. Forster, P. Giommi, B. Grefenstette, Yunjin Kim, T. Kitaguchi, J. Koglin, K. Madsen, P. Mao, H. Miyasaka, K. Mori, M. Perri, M. Pivovaroff, S. Puccetti, V. Rana, N. Westergaard, J. Willis, A. Zoglauer, H. An, M. Bachetti, N. Barrière, E. Bellm, V. Bhalerao, N. Brejnholt, F. Fuerst, C. Liebe, C. Markwardt, M. Nynka, J. Vogel, D. Walton, D. Wik, D. Alexander, L. Cominsky, A. Hornschemeier, A. Hornstrup, V. Kaspi, G. Madejski, G. Matt, S. Molendi, David M. Smith, J. Tomsick, M. Ajello, D. Ballantyne, M. Baloković, D. Barret, F. Bauer, R. Blandford, W. Brandt, L. Brenneman, J. Chiang, D. Chakrabarty, J. Chenevez, A. Comastri, F. Dufour, M. Elvis, A. Fabian, D. Farrah, Chris L. Fryer, E. Gotthelf, J. Grindlay, D. Helfand, R. Krivonos, D. Meier, Jonathan M. Miller, L. Natalucci, P. Ogle, E. Ofek, A. Ptak, S. Reynolds, J. Rigby, G. Tagliaferri, S. Thorsett, E. Treister, C. M. Urry   +80 more
semanticscholar   +1 more source

A Trigger Interface Board to manage trigger and timing signals in CTA Large-Sized Telescope and Medium-Sized Telescope cameras [PDF]

, 2017
One of the main goals of the Cherenkov Telescope Array (CTA) observatory is to improve the $\gamma$-ray detection sensitivity by an order of magnitude, compared to the current ground-based observatories. Widening the energy coverage down to 20 GeV and up
Barrio, Juan Abel, Cherenkov Telescope Array Consortium, López, Marcos, Peñil, Pablo, Tejedor, Luis Ángel   +4 more
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The MAGIC telescope [PDF]

Proceedings of International Europhysics Conference on High Energy Physics — PoS(HEP2005), 2007
MAGIC (Major Atmospheric Gamma Imaging Cherenkov telescope) is presently the largest ground-based gamma ray telescope. MAGIC has been taking data regularly since October 2004 at the Roque de los Muchachos Observatory on the island of La Palma. In this paper the MAGIC telescope status, its performances and some preliminary results on observed gamma ray ...
openaire   +3 more sources

MeerKAT time and frequency reference optical network: Preliminary design analysis

South African Journal of Science, 2017
The MeerKAT telescope is a precursor to the Square Kilometre Array, which will rely on optical fibres to link the telescope receivers to a central processor point. The main aspects to consider for the fibre transport are astronomical data transmission as
Enoch K. Rotich Kipnoo, Romeo R.G. Gamatham, Andrew W.R. Leitch, Timothy B. Gibbon, Sias Malan, Henno Kriel, Francois Kapp   +6 more
doaj   +1 more source

First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring

Astrophysical Journal Letters
The Event Horizon Telescope observed the horizon-scale synchrotron emission region around the Galactic center supermassive black hole, Sagittarius A* (Sgr A*), in 2017. These observations revealed a bright, thick ring morphology with a diameter of 51.8 ±
The Event Horizon Telescope Collaboration, K. Akiyama, A. Alberdi, W. Alef, J. Algaba, R. Anantua, K. Asada, R. Azulay, U. Bach, A. Baczko, D. Ball, M. Baloković, B. Bandyopadhyay, J. Barrett, M. Bauböck, B. Benson, D. Bintley, L. Blackburn, R. Blundell, K. Bouman, G. Bower, H. Boyce, M. Bremer, C. Brinkerink, R. Brissenden, S. Britzen, A. Broderick, D. Broguiere, T. Bronzwaer, S. Bustamante, D. Byun, J. Carlstrom, C. Ceccobello, A. Chael, Chi-kwan Chan, Dominic O. Chang, K. Chatterjee, S. Chatterjee, Ming-Tang Chen, Y. Chen 陈, Xiaopeng Cheng, I. Cho, P. Christian, N. S. Conroy, J. Conway, J. Cordes, T. Crawford, G. Crew, A. Cruz-Osorio, Y. Cui 崔, R. Dahale, J. Davelaar, M. De Laurentis, R. Deane, J. Dempsey, G. Desvignes, J. Dexter, Vedant Dhruv, I. K. Dihingia, S. Doeleman, S. Dougal, S. Dzib, R. Eatough, R. Emami, H. Falcke, J. Farah, V. Fish, E. Fomalont, H. Ford, M. Foschi, R. Fraga-Encinas, W. Freeman, P. Friberg, C. Fromm, A. Fuentes, P. Galison, C. Gammie, Roberto García, O. Gentaz, B. Georgiev, C. Goddi, R. Gold, A. I. Gómez-Ruiz, J. Gómez, M. Gu 顾, M. Gurwell, K. Hada, D. Haggard, K. Haworth, M. Hecht, R. Hesper, D. Heumann, Luis C. 子山 Ho 何, P. Ho, M. Honma, Chih-Wei L. Huang, L. Huang 黄, David H. Hughes, S. Ikeda, C. Impellizzeri, Makoto Inoue, S. Issaoun, D. J. James, B. Jannuzi, M. Janssen, B. Jeter, Wu 悟 Jiang 江, A. Jiménez-Rosales, Michael D. Johnson, S. Jorstad, A. Joshi, T. Jung, M. Karami, R. Karuppusamy, T. Kawashima, G. Keating, M. Kettenis, Dong-Jin Kim, Jae-Young Kim, Jongsoo Kim, Junhan Kim, M. Kino, J. Koay, Prashant Kocherlakota, Y. Kofuji, P. M. Koch, S. Koyama, C. Kramer, J. Kramer, M. Kramer, T. Krichbaum, C. Kuo, N. La Bella, T. Lauer, Daeyoung Lee, Sang-Sung Lee, P. Leung, A. Levis, Z. Li 李, R. Lico, Greg Lindahl, M. Lindqvist, M. Lisakov, J. Liu 刘, Kuo Liu, E. Liuzzo, Wen-Ping Lo, A. Lobanov, L. Loinard, C. Lonsdale, A. Lowitz, Ru-Sen 如森 Lu 路, N. MacDonald, J. Mao 毛, N. Marchili, S. Markoff, D. Marrone, A. Marscher, I. Martí-Vidal, S. Matsushita, L. Matthews, L. Medeiros, K. Menten, D. Michalik, I. Mizuno, Y. Mizuno, J. M. Moran, K. Moriyama, M. Mościbrodzka, W. Mulaudzi, C. Müller, H. Müller, A. Mus, G. Musoke, I. Myserlis, A. Nadolski, H. Nagai, N. Nagar, M. Nakamura, G. Narayanan, I. Natarajan, A. Nathanail, S. Navarro Fuentes, J. Neilsen, R. Neri, C. Ni, A. Noutsos, M. Nowak, J. Oh, H. Okino, H. Olivares, G. Ortiz-Léon, T. Oyama, F. Özel, D. Palumbo, G. Paraschos, Jongho Park, H. Parsons, N. Patel, U. Pen, D. Pesce, V. Piétu, R. Plambeck, A. PopStefanija, O. Porth, F. M. Pötzl, B. Prather, J. A. Preciado-López, D. Psaltis, Hung-Yi Pu, V. Ramakrishnan, R. Rao, M. Rawlings, A. Raymond, L. Rezzolla, Angelo Ricarte, B. Ripperda, F. Roelofs, Alan Rogers, C. Romero-Cañizales, E. Ros, A. Roshanineshat, H. Rottmann, A. Roy, I. Ruiz, C. Ruszczyk, K. Rygl, S. Sánchez, D. Sánchez-Argüelles, M. Sánchez-Portal, M. Sasada, K. Satapathy, T. Savolainen, F. Schloerb, J. Schonfeld, K. Schuster, Lijing Shao, Z. Shen 沈, D. Small, B. Sohn, J. SooHoo, L. D. Sosapanta Salas, K. Souccar, J. S. Stanway, H. Sun 孙, F. Tazaki, A. Tetarenko, P. Tiede, R. Tilanus, M. Titus, P. Torne, T. Toscano, E. Traianou, T. Trent, S. Trippe, M. Turk, I. van Bemmel, H. V. van Langevelde, D. V. van Rossum, J. Vos, J. Wagner, D. Ward-Thompson, J. Wardle, J. Washington, J. Weintroub, R. Wharton, M. Wielgus, K. Wiik, G. Witzel, M. Wondrak, G. Wong, Q. Wu 吴, N. Yadlapalli, P. Yamaguchi, A. Yfantis, D. Yoon, A. Young, K. Young, Z. Younsi, W. Yu 于, F. Yuan 袁, Y. Yuan 袁, J. A. Zensus, Shuo Zhang, Guangyao Zhao, S. Zhao 赵   +285 more
semanticscholar   +1 more source

The Daniel K. Inouye Solar Telescope – Observatory Overview

Solar Physics, 2020
We present an overview of the National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST), its instruments, and support facilities. The 4 m aperture DKIST provides the highest-resolution observations of the Sun ever achieved.
T. Rimmele, M. Warner, S. Keil, P. Goode, M. Knölker, J. Kuhn, R. Rosner, J. McMullin, R. Casini, Haosheng Lin, F. Wöger, O. F. von der Lühe, A. Tritschler, A. Davey, A. D. de Wijn, D. Elmore, A. Fehlmann, D. Harrington, S. Jaeggli, M. Rast, T. Schad, W. Schmidt, M. Mathioudakis, D. Mickey, T. Anan, C. Beck, H. Marshall, P. Jeffers, J. Oschmann, A. Beard, D. Berst, Bruce Cowan, S. Craig, E. Cross, Bryan K. Cummings, Colleen Donnelly, Jean-Benoit de Vanssay, A. Eigenbrot, Andrew E. Ferayorni, Christopher Foster, C. Galapon, Christopher Gedrites, K. Gonzales, B. Goodrich, B. S. Gregory, Stephanie S. Guzman, Stephen Guzzo, S. Hegwer, R. Hubbard, J. Hubbard, E. Johansson, L. Johnson, Chen Liang, Mary Liang, Isaac McQuillen, C. Mayer, K. Newman, Brialyn Onodera, L. Phelps, Myles M. Puentes, Christopher Richards, Lukas M. Rimmele, P. Sekulic, Stephan R. Shimko, Brett E. Simison, Brett Smith, E. Starman, S. Sueoka, Richard T. Summers, A. Szabo, Louis R. Szabo, S. Wampler, T. Williams, Charles R. White   +73 more
semanticscholar   +1 more source

The Swift Ultra-Violet/Optical Telescope [PDF]

SPIE Optics + Photonics, 2002
The Ultra-Violet/Optical Telescope (UVOT) is one of three instruments flying aboard the Swift Gamma-ray Observatory. It is designed to capture the early (∼1 min) UV and optical photons from the afterglow of gamma-ray bursts in the 170–600 nm band as well
P. Roming, T. Kennedy, K. O. Mason, J. Nousek, Lindy Ahr, Richard E. Bingham, P. Broos, M. Carter, B. Hancock, H. Huckle, S. Hunsberger, Hajime Kawakami, R. Killough, T. S. Koch, M. McLelland, Kelly Smith, Philip J. Smith, Juan Carlos Soto, P. T. Boyd, A. Breeveld, S. T. Holland, M. Ivanushkina, Michael S. Pryzby, Martin D. Still, Joseph Stock   +24 more
semanticscholar   +1 more source

Cerenkov Events Seen by The TALE Air Fluorescence Detector [PDF]

, 2013
The Telescope Array Low-Energy Extension (TALE) is a hybrid, Air Fluorescence Detector (FD) / Scintillator Array, designed to study cosmic ray initiated showers at energies above $\sim3\times10^{16}$ eV. Located in the western Utah desert, the TALE FD is
Abu-Zayyad, Tareq, Collaboration, Telescope-Array   +1 more
core