Results 111 to 120 of about 528,312 (296)
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
THE PROBLEMS OF DETERMINATION OF ABUNDANCES IN ATMOSPHERES OF K GIANT STARS
Odessa Astronomical Publications, 2017 The influence of effective temperatures of surface gravities, of metallicities, of microturbulent velocities as well as of effects non-LTE, of starspotting, of chromospbere, corona and wind of different nonthermal mechanisms on determination of ...
N. S. Komarov +5 more
doaj +1 more source
Cool Stars in the Hertzsprung–Russell Diagram [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractAs the opening review to the focus meeting “Stellar Behemoths: Red Supergiants across the Local Universe”, I here provide a brief introduction to red supergiants, setting the stage for subsequent contributions. I highlight some recent activity in the field, and identify areas of progress, areas where progress is needed, and how such progress ...
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Splinter session: What future for stellar X-ray spectroscopy?
, 2005 Advances and current limits of stellar X-ray spectroscopy have been discussed, with special emphasis on its relevance for cool stars science, the drawbacks of using simple models to describe complex physical environments, and the requirements for ...
Drake, J.J. (author) +3 more
core +1 more source
THE ONSET OF CHAOS IN PULSATING VARIABLE STARS
Odessa Astronomical Publications, 2010 Random changes in pulsation period occur in cool pulsating Mira variables, Type A, B, and C semiregular variables, RV Tauri variables, and in most classical Cepheids.
D. G. Turner +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization
Advanced Engineering Materials, EarlyView.Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier +17 more
wiley +1 more source
THE CHEMICAL ABUNDANCES OF ATMOSPHERES OF K GIANT STARS
Odessa Astronomical Publications, 2017 The abundances of 18 cool giant stars in Vicinity of Sun have been determinated. This determination was made by using the method of model atmospheres. It should be noted that almost all elements show discrepancies in abundances determined for absorption ...
N. S. Komarov +3 more
doaj +1 more source