Results 101 to 110 of about 5,710 (349)
Advanced Engineering Materials, EarlyView.Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi +2 more
wiley +1 more source
Weakened Magnetic Braking in the Exoplanet Host Star 51 Peg
The Astrophysical Journal LettersThe consistently low activity level of the old solar analog 51 Peg not only facilitated the discovery of the first hot Jupiter, but also led to the suggestion that the star could be experiencing a magnetic grand minimum.
Travis S. Metcalfe +13 more
doaj +1 more source
Magnetohydrodynamic instabilities in stellar radiative regions
Astronomy & AstrophysicsContext. Space missions such as Kepler have brought new constraints, along with new questions, on stellar evolution. A key issue is the unexpected spin-down of low-mass stellar cores, pointing to an efficient angular momentum transport mechanism in which
Durepaire V. +6 more
doaj +1 more source
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Magnetic Fields on Solar-Type Stars: The Solar-Stellar Connection
, 2016 Our understanding of solar magnetic fields is significantly more detailed than we can achieve for other stars. However, over the last few decades, techniques such as Zeeman Doppler Imaging (ZDI), have delivered major advances in the study of stellar ...
Marsden, Stephen (5124401) +1 more
core +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
Development and application of a global magnetic field evolution model for the solar corona
, 2009 Magnetic fields are fundamental to the structure and dynamics of the Sun’s corona. Observations show them to be locally complex, with highly sheared and twisted fields visible in solar filaments/prominences.
Yeates, Anthony Robinson
core
Early Stellar Evolution and the Role of Magnetic Fields
, 2017 <p>Presentation given at the 2017 Georgia Regional Astronomy Meeting (GRAM) at the University of Georgia (Athens, GA, USA).</p> <p><strong>Abstract</strong><br> Young low-mass stars often exhibit observational ...
Feiden, Gregory A. (5304169) +1 more
core +1 more source
The Measurement of Stellar Photospheric Magnetic Fields [PDF]
Highlights of Astronomy, 1986 The credit for the first detection of magnetic fields on a star belongs to Hale who, in 1908, spectroscopically examined sunspots and determined their Zeeman splitting. Routine measurements of fields, however, did not come until the late 1940’s, with the development of the magnetograph by Babcock.
openaire +1 more source
Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source