Results 61 to 70 of about 86,915 (297)

Small-scale Intensity Mapping: Extended Halos as a Probe of the Ionizing Escape Fraction and Faint Galaxy Populations during Reionization

, 2017
We present a new method to quantify the value of the escape fraction of ionizing photons, and the existence of ultra-faint galaxies clustered around brighter objects during the epoch of cosmic reionization, using the diffuse Ly$\alpha$, continuum and H ...
Davies, Frederick B., Dijkstra, Mark, Hennawi, Joseph F., Mas-Ribas, Lluís, Rix, Hans-Walter, Stern, Jonathan   +5 more
core   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler, Serhii Yaroshevskyi, Alexander Adamczyk, Mahnaz Mehdizadehlima, Julia Richter, Cameliu Himcinschi, David Rafaja, Alexandros Charitos, Christos G. Aneziris, Jens Kortus   +9 more
wiley   +1 more source

Studies on Physical Properties of Snow Based on Multi Channel Microwave Radiometer [PDF]

, 1985
The analysis of the data observed over a snow field with a breadboard model of MSR (microwave scanning radiometer) to be installed in MOS-1 (Marine Observation Satellite-1) indicates that: (1) the influence of incident angle on brightness temperature is ...
Takeda, K., Tsuchiya, K.
core   +1 more source

Inference of the Cold Dark Matter substructure mass function at z=0.2 using strong gravitational lenses [PDF]

, 2014
We present the results of a search for galaxy substructures in a sample of 11 gravitational lens galaxies from the Sloan Lens ACS Survey. We find no significant detection of mass clumps, except for a luminous satellite in the system SDSS J0956+5110.
Auger, M. W., Bolton, A. S., Koopmans, L. V. E., Treu, T., Vegetti, S.   +4 more
core   +2 more sources

The Artificial Sky Brightness in Europe Derived from DMSP Satellite Data [PDF]

Symposium - International Astronomical Union, 2001
We present maps of the artificial sky brightness in Europe in V band with a resolution of ~1 km. The aim is to understand the state of night sky pollution in Europe, to quantify the present situation and to allow future monitoring of trends. For each terrestrial site the artificial sky brightness in a given direction on the sky is obtained by ...
Cinzano, P., Falchi, F., Elvidge, C. D., Baugh, K. E.   +3 more
openaire   +2 more sources

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Unsupervised domain adaptation for Global Precipitation Measurement satellite constellation using Cycle Generative Adversarial Nets

Environmental Data Science, 2022
Artificial intelligence has provided many breakthroughs in the field of computer vision. The fully convolutional networks U-Net in particular have provided very promising results in the problem of retrieving rain rates from space-borne observations, a ...
Vibolroth Sambath, Nicolas Viltard, Laurent Barthès, Audrey Martini, Cécile Mallet   +4 more
doaj   +1 more source

The SAGA Survey: I. Satellite Galaxy Populations Around Eight Milky Way Analogs

, 2017
We present the survey strategy and early results of the "Satellites Around Galactic Analogs" (SAGA) Survey. The SAGA Survey's goal is to measure the distribution of satellite galaxies around 100 systems analogous to the Milky Way down to the luminosity ...
Bernstein, Rebecca, Geha, Marla, Hoyle, Ben, Lu, Yu, Mao, Yao-Yuan, Marchi, Sebastian, Marshall, Phil J., Munoz, Ricardo, Tollerud, Erik J., Wechsler, Risa H., Weiner, Benjamin   +10 more
core   +1 more source

Production of MgO/TiC Composites From MgO‐C Recyclates Using Spark Plasma Sintering

Advanced Engineering Materials, EarlyView.
Using the spark plasma sintering technique, MgO/TiC composites are manufactured from recycled MgO‐C refractories stemming from the steel production that were mixed with titanium powder. This article shows, how the size of the Ti grains and their distribution in the powder mixture affect the local carbon concentration in TiC.
Jiayan Yu, Christian Schimpf, Stefan Martin, David Rafaja   +3 more
wiley   +1 more source

Simulated Impact on LSST Data of Starlink V1.5 and V2 Satellites

The Astronomical Journal
The new Starlink V2 satellites incorporate improvements to the chassis brightness through dielectric mirrors, off-pointing solar arrays, and blackened exposed components. For the general case in which the reflectivities are initially unknown, we simulate
Phanindra Kandula, J. Anthony Tyson, Jacob Askari, Forrest Fankhauser   +3 more
doaj   +1 more source