Results 251 to 260 of about 176,754 (298)
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Light and lightened mirrors for astronomy
SPIE Proceedings, 2008For ground-based astronomy, more and more large telescopes are emerging all around the world. Similarly to space borne telescopes, for which the use of lightened optics has always been a baseline for purpose of mass reduction of payloads, same kinds of lightened/light mirrors are then now more and more intensively used also for ground-based ...
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Measurements of Scattered Light from Mirrors and Lenses
Applied Optics, 1968The limitations arising from scattered light from lenses and mirrors in a program of daytime astrometry near the sun are discussed. Measurements were made of the angular distribution of the scattered radiance for (1) a coronagraphic lens, (2) a 2.54-cm thick coronagraph quality window, and (3) flat quartz mirrors. Results are also given for the optical
G R, Hostetter +3 more
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Needles of light produced with a quasi-parabolic mirror
Journal of the Optical Society of America A, 2017We propose a quasi-parabolic mirror that can produce a long needle of light by focusing a radially polarized annular beam. The quasi-parabolic mirror can be acquired by moving the axis of rotation of a parabolic mirror. Using the extended Richards-Wolf theory for axisymmetric surfaces, we calculated that the needle obtained can have a longitudinal FWHM
Li Hang, Ying Wang, Peifeng Chen
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Mirroring trees in the light of their topologies
2012Motivation: Determining the interaction partners among protein/domain families poses hard computational problems, in particular in the presence of paralogous proteins. Available approaches aim to identify interaction partners among protein/domain families through maximizing the similarity between trimmed versions of their phylogenetic trees.
I. Hajirasouliha +4 more
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Science Activities: Classroom Projects and Curriculum Ideas, 2000
Brian Tiburzi +2 more
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Brian Tiburzi +2 more
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AN EXPERIMENTAL INVESTIGATION OF MIRROR LIGHTING
2016The aim of this study is to investigate the preferred vertical illuminance and luminaire placements for mirror lighting experimentally. For this purpose, a mirror is fixed on a wall of the mock-up room and three linear luminaires are placed around the mirror; one on each side and one above the mirror.
Erbil, Filiz Acari, Öztürk, Leyla
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Dual Signal Light Detection of Beta-Lactoglobulin Based on a Porous Silicon Bragg Mirror
Biosensors and Bioelectronics, 2022ZhenHong Jia, Jiajia Wang, Zhenhong Jia
exaly

