Results 31 to 40 of about 14,635 (238)

An international campaign of the 19th century to determine the solar parallax - The US Naval expedition to the southern hemisphere 1849 - 1852

, 2014
In 1847 Christian Ludwig Gerling, Marburg (Germany), suggested the solar parallax to be determined by measuring the position of Venus close to its inferior conjunction, especially at the stationary points, from observatories on nearly the same meridian ...
Schrimpf, Andreas
core   +1 more source

SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. I. Science goals, survey design and instrumentation [PDF]

, 1998
The Molonglo Observatory Synthesis Telescope, operating at 843 MHz with a 5 square degree field of view, is carrying out a radio imaging survey of the sky south of declination -30 deg.
Amy S. W., Baars J. W. M., Benn C. R., Campbell-Wilson D., Campbell-Wilson D., Cram L. E., D. C.-J. Bock, Dunlop J. S., Ebeling H., Elaine M. Sadler, Green A. J., Hunstead R. W., Kooiman B. L., Large M. I., Large M. I., Large M. I., M. I. Large, Maddox S. J., Manchester R. N., Mills B. Y., Mills B. Y., Peacock J. A., Robertson J. G., Unewisse A. M., Wunderlich E.   +24 more
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Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Glasgow time signals [PDF]

, 2016
From 1859 to 1864, both visual and audio one o’clock time signals operated in Glasgow. Although the University carried a remit to provide the city’s time, following convoluted processes of establishment, a local chronometer-maker operated a time ball for
Black, William B., Clarke, David
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Actuation of Cell Layers in Three Dimensions

Advanced Materials, EarlyView.
ABSTRACT The alignment of fibers and cells in living tissues affect their mechanical properties and functionality. In this context, one can draw an analogy between tissues and nematic liquid crystal elastomers. We explore this analogy by growing fibroblasts on 2D‐patterned substrates and observing the contraction of cell sheets upon detachment from the
Kirsten Endresen, Aniruddh Murali, Birte C. Geerds, Grecia M. Valenzuela Portillo, Maria Bloksgaard, Daniel J.G. Pearce, Francesca Serra   +6 more
wiley   +1 more source

The first measurement of the deflection of the vertical in longitude -- The figure of the earth in the early 19th century

, 2014
During the summer of 1837 Christian Ludwig Gerling, a former student of Carl Friedrich Gau{\ss}'s, organized the world wide first determination of the deflection of the vertical in longitude.
Schrimpf, Andreas
core   +1 more source

Calibration and Stokes Imaging with Full Embedded Element Primary Beam Model for the Murchison Widefield Array [PDF]

, 2017
15 pages, 11 figures. Accepted for publication in PASA. © Astronomical Society of Australia 2017The Murchison Widefield Array (MWA), located in Western Australia, is one of the low-frequency precursors of the international Square Kilometre Array (SKA ...
Bell, M. E., Callingham, J. R., Colegate, T., Dwarakanath, K. S., For, Bi-Qing, Gaensler, B. M., Hancock, P. J., Hindson, L., Hurley-Walker, N., Johnston-Hollitt, M., Kapińska, A. D., Kaplan, David L., Lenc, E., McKinley, B., Morgan, J., Offringa, A. R., Pindor, B., Procopio, P., Sokolowski, M., Staveley-Smith, L., Sutinjo, A. T., Ung, D., Wayth, R. B., Wu, C., Zheng, Q.   +24 more
core   +4 more sources

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

The site conditions of the Guo Shou Jing Telescope

, 2012
The weather at Xinglong Observing Station, where the Guo Shou Jing Telescope (GSJT) is located, is strongly affected by the monsoon climate in north-east China. The LAMOST survey strategy is constrained by these weather patterns.
Carlin, Jeffrey L., Chen, Li, Christlieb, Norbert, Deng, Licai, Gao, Shuang, Han, Zhanwen, Hou, Jinliang, Lee, Hsu-Tai, Li, Jing, Liu, Chao, Liu, Nian, Liu, Xiaowei, Newberg, Heidi Jo, Pan, Kaike, Wang, Hongchi, Xu, Yan, Yang, Fan, Yao, Song, Zhang, Haotong, Zhang, Yueyang, Zhou, Xu   +20 more
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