Results 21 to 30 of about 134,603 (317)
Comparative analysis of three mode-selection methods for solid-state lasers [PDF]
E3S Web of Conferences, 2021 In the Nd3+:YAG pulsed Q-switched laser system, the selective output of several low order modes of TEM00, TEM01 and TEM11 is realized by adding a iris diaphragm, a telescope or a Gaussian mirror at an appropriate position in the resonator, and the three ...
Sun Yan
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Performance of the MALTA telescope
The European Physical Journal C, 2023 AbstractMALTA is part of the Depleted Monolithic Active Pixel sensors designed in Tower 180 nm CMOS imaging technology. A custom telescope with six MALTA planes has been developed for test beam campaigns at SPS, CERN, with the ability to host several devices under test.
van Rijnbach, Milou +29 more
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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
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Frontiers in Artificial Intelligence, 2022 The rapid pace in which various Artificial Intelligence and Machine Learning tools are developed, both within the research community and outside of it, often discourages the involved researchers from taking time to consider potential consequences and applications of the technical advances, especially the unintended ones.
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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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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
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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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Temporal Variations of the Turbulence Profiles at the Sayan Solar Observatory Site
Atmosphere, 2019 The paper focuses on the development of the method to estimate the mean characteristics of the atmospheric turbulence. Using an approach based on the shape of the energy spectrum of atmospheric turbulence over a wide range of spatial and temporal scales,
Artem Shikhovtsev +2 more
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Atmosphere, 2021 A method to detect the atmospheric turbulent layers using a single Shack–Hartmann wavefront sensor is discussed. In order to determine the height distribution of the atmospheric turbulence above a telescope, we register the wavefront distortions at ...
Artem Yurievich Shikhovtsev +6 more
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