Results 141 to 150 of about 44,379 (345)

A New Survey for Hα-Emission-Line Stars in the Small Magellanic Cloud [PDF]

, 1986
M. Azzopardi, N. Meyssonnier
openalex   +1 more source

Going Forward to Unveil the Nature of γ Cas Analogs

Galaxies
The star γ Cas and its analogs are a subset of Be stars that display particularly hard and bright thermal X-ray emission, which has no equivalent among other massive stars.
Yaël Nazé
doaj   +1 more source

Polarimetry of Early Emission Line Stars. [PDF]

, 2001
D. McDavid
openaire   +2 more sources

Prediction of Surface Topography Parameters in Direct Laser Interference Patterning of Stainless Steel Using Infrared Monitoring and Convolutional Neural Networks

Advanced Engineering Materials, EarlyView.
This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky, Marcelo Sallese, Leander Kläber, Clemens Kuhn, Keming Du, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Hα Emission among Evolved FGKM Stars: A Compendium from the Literature

The Astronomical Journal
Emission in the wings of the H α line among late-type giant stars occurs as a consequence of conditions in their chromospheres. Data from the literature have been used to document the incidence of H α emission among Population I giant stars as a function
Graeme H. Smith
doaj   +1 more source

Higher-dimensional black holes: Braneworld stars and Hawking radiation. [PDF]

, 2007
In this thesis two aspects of braneworld models are studied. A new attempt at finding the metric of a braneworld black hole within the second Randall-Sundrum model is explored. Branes containing distributions of perfect fluid are embedded in a variety of
Creek, Simon
core  

Hα Emission-Line Stars in Molecular Clouds. I. The NGC 2264 Region

, 2004
We present a deep survey of Hα emission-line stars in the NGC 2264region using wide-field objective prism films. We find 357 Hαemission-line stars, of which 113 were previously detected, within anarea of 3°×3° centered on the Cone Nebula, with a ...
Pettersson, Bertil,, Armond, Tina, Vaz, Luiz Paulo R., Bally, John, Reipurth, Bo   +4 more
core   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

On Emission-Line Stars in the ζ SCULPTORIS Cluster [PDF]

, 1972
Howard E. Bond
openalex   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source