Results 81 to 90 of about 8,121 (248)
A MODEL OF SILICATE GRAIN NUCLEATION AND GROWTH IN CIRCUMSTELLAR OUTFLOWS
The Astrophysical Journal, 2011 Based on its abundance, high bond energy, and recent measurements of its vapor pressure SiO is a natural candidate for dust nucleation in circumstellar outflows around asymptotic giant branch stars. In this paper, we describe a model of the nucleation and growth of silicate dust in such outflows.
John A. Paquette +2 more
openaire +1 more source
Journal of Raman Spectroscopy, EarlyView.Micrometer analysis of millimeter lines of Raman spectra concludes in the association of anatase and graphitized organic matter (graphogen). The photosynthetic microorganisms at the origin of the microbialites produce O2, which is transformed by TiO2 into reactive species that, in turn, decompose the organic matter of the microorganisms. ABSTRACT Raman
Marie‐Paule Bassez
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Journal of Raman Spectroscopy, EarlyView.An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello +2 more
wiley +1 more source
Silicate Sundogs: Probing the Effects of Grain Directionality in Exoplanet Observations
The Astrophysical Journal LettersCrystalline ice in Earth’s atmosphere can produce spectacular phenomena due to orientation-dependent attenuation, such as sundogs and halos, providing diagnostics of the external processes acting on the aerosol grains.
Elijah Mullens, Nikole K. Lewis
doaj +1 more source
Cogent EngineeringThe work aims to study the possibility of using artificial aggregate based on high-calcium fly ash in firing material on a sodium-calcium silicate binder developed as a thermal insulation material.
Sergey Korotaev +3 more
doaj +1 more source
Ambient‐Light‐Activated Rewritable Optical Patterning in Transparent Long‐Afterglow Garnet Ceramics
Laser &Photonics Reviews, EarlyView.This work demonstrates sunlight‐activated rewritable optical information storage in transparent long‐afterglow Y3Al2Ga3O12:Ce (YAGG:Ce) garnet ceramics fabricated via solid‐state sintering with tetraethyl orthosilicate (TEOS) as a sintering aid. By integrating ambient‐light operability, reversibility, and high optical clarity in a robust ceramic host ...
Luyang Hua +11 more
wiley +1 more source
Analysis of Corrosion and Wall Perforation in the Heat Exchanger Made of AISI 316L Stainless Steel
Materials and Corrosion, EarlyView.Elevated passivation temperature is identified as the dominant factor triggering localized corrosion and subsequent perforation of AISI 316L heat exchanger tubes. Electrochemical and complementary characterization results show that the alloy retains high resistance to general, pitting, and intergranular corrosion, indicating that failure primarily ...
Bojana Radojković +7 more
wiley +1 more source
Supernova Dust Synthesis—Carbonaceous Dust in the Very Early Universe
The Astrophysical JournalRecent observations have revealed the spectral features of carbonaceous grains even in very distant galaxies. We develop a state-of-the-art dust synthesis code by self-consistently solving molecule and dust formation in supernova (SN) ejecta that contain
Gen Chiaki +2 more
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Application of Magnesium Metal as Anode in Batteries
MetalMat, EarlyView.When used as an anode, magnesium metal offers several advantages, including a high volumetric capacity, environmental friendliness, abundant natural reserves, and a low tendency for dendrite growth. Battery types employing magnesium as the anode include rechargeable magnesium‐ion batteries, aqueous magnesium‐ion batteries, magnesium–air batteries, and ...
Yuanjie Zhang +5 more
wiley +1 more source
Geophysical Monograph Series, Page 97-104., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Daniele Cherniak +2 more
wiley +9 more sources