Results 31 to 40 of about 200,425 (305)
Active optics: deformable mirrors with a minimum number of actuators [PDF]
Journal 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.
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Telescopic Network of Zhulong for Orbit Determination and Prediction of Space Objects
Remote SensingThe increasing proliferation of space debris, intermittent space incidents, and the rapid emergence of massive LEO satellite constellations pose significant threats to satellites in orbit.
Xiangxu Lei +6 more
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Activities of PMO optical space debris survey [PDF]
Anais da Academia Brasileira de CiênciasSpace debris division of PMO is devoted to play an important role in the research of orbital mechanics and the development of space debris observation techniques in China.
ZHANG CHEN, ZHAO CHANGYIN
doaj +2 more sources
PLoS ONE, 2014 Next generation sequencing technologies led to the discovery of numerous new microbe species in diverse environmental samples. Some of the new species contain genes never encountered before. Some of these genes encode proteins with novel functions, and some of these genes encode proteins that perform some well-known function in a novel way.
Szalkai, Balázs +4 more
openaire +4 more sources
Probing Diversity of Type II Supernovae with the Chinese Space Station Telescope
Universe, 2023 Type II supernovae (SNe II), which show abundant hydrogen in their spectra, belong to a class of SNe with diverse observed properties. It is commonly accepted that SNe II are produced by core collapse and explosion of massive stars.
Han Lin, Jujia Zhang, Xinghan Zhang
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Design and Development of an acoustic positioning system for a cubic kilometre underwater neutrino telescope [PDF]
, 2012 En los últimos años los telescopios submarinos de neutrinos han cobrado una mayor importancia ya que consisten en un nuevo y único instrumento para observar el Universo.
Larosa ., Giuseppina
core +1 more source
Gazi Üniversitesi Fen Bilimleri DergisiThe study aims experimental investigation of the sigma vectors in Nodal Aberration Theory for a customized non-aplanatic high-precision Cassegrain telescope under coma-free pivot point (CFPP) misalignment conditions.
Meltem Yeşiltepe +1 more
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Imagining the Heavens: Adam Elsheimer’s Flight into Egypt and the Renaissance Night Sky
Journal for the History of Knowledge, 2021 Adam Elsheimer’s The Flight into Egypt (1609) has triggered a longstanding debate among art historians. For the last five decades, Elsheimer’s novel naturalistic representation of the night sky in his painting on copper has been linked to Galileo’s ...
Stefan Zieme
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Journal of the Mechanical Behavior of Materials, 2018 Active optics techniques on large telescopes and astronomical instrumentations provide high imaging quality. For ground-based astronomy, the co-addition of adaptive optics again increases angular resolution up to providing diffraction-limited imaging at ...
Lemaitre Gérard Rene
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