Results 121 to 130 of about 669,031 (383)

CCAT-prime: a novel telescope for submillimeter astronomy

, 2018
The CCAT-prime telescope is a 6-meter aperture, crossed-Dragone telescope, designed for millimeter and sub-millimeter wavelength observations. It will be located at an altitude of 5600 meters, just below the summit of Cerro Chajnantor in the high Atacama
Bazarko, Andrew, Bertoldi, Frank, Blair, James, Bustos, Ricardo, Campbell, Donald B., Chapman, Scott, Cothard, Nicholas, Devlin, Mark, Erler, Jens, Fich, Michel, Gallardo, Patricio A., Giovanelli, Riccardo, Graf, Urs, Gramke, Scott, Haynes, Martha P., Herter, Terry, Hills, Richard, Kronshage, Jörg, Limon, Michele, Mangum, Jeffrey G., McMahon, Jeff, Niemack, Michael D., Nikola, Thomas, Nolta, Mike, Omlor, Markus, Parshley, Stephen C., Riechers, Dominik A., Stacey, Gordon J., Steeger, Karl, Stutzki, Jürgen, Vavagiakis, Eve M.   +30 more
core   +1 more source

Contactless Tracking of Decomposition in Self‐Reporting Ceramic Cr‐Al‐B Coatings

Advanced Materials Interfaces, EarlyView.
Proof of concept for contactless tracking of decomposition in self‐reporting ceramic Cr‐Al‐B coatings in extreme environments by contactless resistivity measurements is demonstrated. To verify the results, high resolution in situ and ex situ methods are employed.
Peter J. Pöllmann, Sebastian Lellig, Dimitri Bogdanovski, Amir Hossein Navidi Kashani, Damian M. Holzapfel, Clio Azina, Peter Schweizer, Marcus Hans, Paula Zöll, Daniel Primetzhofer, Szilárd Kolozsvári, Peter Polcik, Johann Michler, Jochen M. Schneider   +13 more
wiley   +1 more source

Retracted: Can the chemical industry solve the climate change?On the role of human energy production, renewable energies, and the potential of chemistry as a solution provider

Chemie Ingenieur Technik, EarlyView., 2023
Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley   +1 more source

Paper Productivity of Ground-based Large Optical Telescopes from 2000 to 2009 [PDF]

, 2011
We present an analysis of the scientific ("refereed") paper productivity of the current largest (diameter >8 m) ground-based optical(-infrared) telescopes during the ten year period from 2000 to 2009. The telescopes for which we have gathered and analysed the scientific publication data are the two 10 m Keck telescopes, the four 8.2 m Very Large ...
arxiv   +1 more source

The Measurement and Correction of Atmospheric Dispersion in 4-Meter Telescope With Adaptive Optical System

IEEE Photonics Journal, 2023
Atmospheric dispersion is a wavelength-dependent effect that affects astronomical observations performed using ground-based telescopes. The effect of atmospheric dispersion for a 4-meter telescope is analyzed and an atmospheric dispersion corrector (ADC)
Guoqing Gao, Hao Chen, Yuanyuan Tang, Wenru Li, Hua Bao, Lingxiao Li   +5 more
doaj   +1 more source

Hybrid Microfluidic Chip Design with Two‐Photon Polymerized Protein‐Based Hydrogel Microstructures for Single Cell Experiments

Advanced Materials Technologies, EarlyView.
A versatile method is presented to integrate complex microstructures from protein‐based hydrogel in microfluidic channels with two‐photon laser writing. This approach is used to perform flow experiments with cells through microgaps and fibrous meshes with different properties.
Dustin Dzikonski, Elena Bekker, Riccardo Zamboni, Dominika Ciechanska, Albrecht Schwab, Cornelia Denz, Jörg Imbrock   +6 more
wiley   +1 more source

Simulating Atmospheric Characteristics and Daytime Astronomical Seeing Using Weather Research and Forecasting Model

Applied Sciences, 2023
The present study is aimed at the development of a novel empirical base for application to ground-based astronomical telescopes. A Weather Research and Forecasting (WRF) model is used for description of atmospheric flow structure with a high spatial ...
A. Y. Shikhovtsev, P. G. Kovadlo, A. A. Lezhenin, V. S. Gradov, P. O. Zaiko, M. A. Khitrykau, K. E. Kirichenko, M. B. Driga, A. V. Kiselev, I. V. Russkikh, V. A. Obolkin, M. Yu. Shikhovtsev   +11 more
doaj   +1 more source

Ritchey-Chretien Telescope [PDF]

, 1973
A Ritchey-Chretien telescope is described which was designed to respond to images located off the optical axis by using two transparent flat plates positioned in the ray path of the image.
Amon, M., Rosin, S.
core   +1 more source

Hybrid Electroluminescence Device for On‐Demand Single Photon Generation at Room Temperature

Advanced Optical Materials, EarlyView.
New type of electroluminescent device based on hBN nanocrystals deposited on a GaN laser diode displays electrically driven emission of single photons at room temperature. Low g2(0) autocorrelation function values are achieved of < 0.2 for continuous driving and < 0.4 for on‐demand single‐photon emission.
Aleksander Rodek, Mateusz Hajdel, Kacper Oreszczuk, Anna Kafar, Muhammed Aktas, Łucja Marona, Marek Potemski, Czeslaw Skierbiszewski, Piotr Kossacki   +8 more
wiley   +1 more source

BAIKAL Experiment: main results obtained with the neutrino telescope NT200 [PDF]

Nucl.Instrum.Meth.A567:423-427,2006, 2006
The Baikal Neutrino Telescope NT200 takes data since April 1998. On April 9th, 2005, the 10 Mton scale detector NT200$+$ was put into operation in Lake Baikal. Selected results obtained during 1998-2002 with the neutrino telescope NT200 are presented.
arxiv   +1 more source