Results 71 to 80 of about 289,818 (249)
On the Unusual Depletions toward Sk 155, or What Are the Small Magellanic Cloud Dust Grains Made of?
, 2006 The dust in the Small Magellanic Cloud (SMC), an ideal analog of primordial galaxies at high redshifts, differs markedly from that in the Milky Way by exhibiting a steeply rising far-ultraviolet extinction curve, an absence of the 2175 Angstrom ...
Aigen Li +8 more
core +1 more source
ORGANOGELS OF SILICIC ACID. [PDF]
Journal of the American Chemical Society, 1921 n ...
Neuhausen, B. S., Patrick, W. A.
openaire +2 more sources
On the constitution of silicate groupings in binary lead silicate glasses [PDF]
Journal of Non-Crystalline Solids, 1976 Abstract Direct chemical methods have been used to determine the type and the percentage of silicate groupings present in binary lead silicate glasses within the composition range 4PbO · SiO2PbO · SiO2. The results obtained indicate that the constitution and the relative amounts of various silicate groupings change with the changing total amount of ...
Götz, J. +2 more
openaire +2 more sources
Metallization of Extruded Briquettes (BREX) in Midrex Process
Metals, 2017 The results of the full-scale testing of the Extruded Briquettes (BREX) as the charge components of the industrial Midrex reactor are discussed. The influence of the type of binder on the degree of metallization of BREX is analyzed.
Aitber Bizhanov, Tatyana Malysheva
doaj +1 more source
Hydration and structure formation of chloride-activated cement paste
Magazine of Civil Engineering, 2020 The result of the research is the formulation of chloride-activated high-strength cement paste with accelerated hardening, increased strength, and without heat treatment.
Tatiana Shepelenko +2 more
doaj +1 more source
Estimation of viscosity for some silicate ternary slags [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2014 A new method, combining KTH model with geometrical model (General solution model by Chou) to estimate viscosity of some ternary silicate slags, was proposed in this work.
Shu Q., Wang L., Chou K.C.
doaj +1 more source
Investigation of Magnesium Silicate as an Effective Gate Dielectric for AlGaN/GaN Metal Oxide High Electron Mobility Transistors (MOSHEMT) [PDF]
arXiv, 2023 In this study, a 6 nm layer of Magnesium Silicate (Mg-Silicate) was deposited on AlGaN/GaN heterostructure by sputtering of multiple stacks of MgO and SiO$_{2}$, followed by rapid thermal annealing in a nitrogen (N$_{2}$) environment. The X-ray photoelectron spectroscopy (XPS) analysis confirmed the stoichiometric Mg-Silicate (MgSiO$_{3}$) after being ...
arxiv
C/O abundance ratios, iron depletions, and infrared dust features in Galactic planetary nebulae
, 2014 We study the dust present in 56 Galactic planetary nebulae (PNe) through their iron depletion factors, their C/O abundance ratios (in 51 objects), and the dust features that appear in their infrared spectra (for 33 objects).
Delgado-Inglada, Gloria +1 more
core +1 more source
Extended silicate dust emission in PG QSOs [PDF]
, 2008 This paper addresses the origin of the silicate emission observed in PG QSOs, based on observations with the Spitzer Space Telescope. Scenarios based on the unified model suggest that silicate emission in AGN arises mainly from the illuminated faces of the clouds in the torus at temperatures near sublimation. However, detections of silicate emission in
arxiv +1 more source
The Structure of Certain Silicates
, 1927 The structures of the silicates which occur in nature present a highly interesting series of problems for X-ray analysis. The number of crystalline forms is very large, and they have been investigated very thoroughly as regards their crystallographical ...
W. Bragg, J. West
semanticscholar +1 more source