Results 41 to 50 of about 529,516 (402)

Diffusion and Thermal Shock Behaviour of Silicate Dental Ceramics

open access: yesMedžiagotyra, 2023
The purpose of this study is to examine the diffusion and thermal shock behaviour of the alternative dental silicates. The samples derived from BaO-SiO2 system have been produced by melting process and followed by the heat treatment.
Burcu ERTUĞ
doaj   +1 more source

A structure hierarchy for silicate minerals: sheet silicates [PDF]

open access: yesMineralogical Magazine, 2018
AbstractThe structure hierarchy hypothesis states thatstructures may be ordered hierarchically according to the polymerisation of coordination polyhedra of higher bond-valence. A hierarchical structural classification is developed for sheet-silicate minerals based on the connectedness of the two-dimensional polymerisations of (TO4) tetrahedra, where T =
Elena Sokolova   +2 more
openaire   +2 more sources

9.7 um Silicate Features in AGNs: New Insights into Unification Models [PDF]

open access: yes, 2006
We describe observations of 9.7 um silicate features in 97 AGNs, exhibiting a wide range of AGN types and of X-ray extinction toward the central nuclei.
Antonucci R.   +17 more
core   +1 more source

High-Q bismuth silicate nonlinear glass microsphere resonators [PDF]

open access: yes, 2012
The fabrication and characterization of a bismuth-silicate glass microsphere resonator has been demonstrated. At wavelengths near 1550 nm, high-modes can be efficiently excited in a 179 µm diameter bismuth-silicate glass microsphere via evanescent ...
Brambilla, G.   +8 more
core   +2 more sources

Comparative Proteomic Analysis Reveals New Insights Into the Common and Specific Metabolic Regulation of the Diatom Skeletonema dohrnii to the Silicate and Temperature Availability

open access: yesFrontiers in Plant Science, 2020
Silicate (Si) and temperature are essential drivers for diatom growth and development in the ocean. Response of diatoms to these particular stress has been investigated; however, their common and specific responses to regulate intracellular development ...
Satheeswaran Thangaraj   +2 more
doaj   +1 more source

Structure, bonding and morphology of hydrothermally synthesised xonotlite [PDF]

open access: yes, 2009
The authors have systematically investigated the role of synthesis conditions upon the structure and morphology of xonotlite. Starting with a mechanochemically prepared, semicrystalline phase with Ca/Si=1, the authors have prepared a series of xonotlite ...
A. Stumm   +19 more
core   +1 more source

The biocompatibility of mesoporous silicates [PDF]

open access: yesBiomaterials, 2008
Micro- and nano-mesoporous silicate particles are considered potential drug delivery systems because of their ordered pore structures, large surface areas and the ease with which they can be chemically modified. However, few cytotoxicity or biocompatibility studies have been reported, especially when silicates are administered in the quantities ...
Robert F. Padera   +3 more
openaire   +3 more sources

Research on the Adsorption Behavior of Heavy Metal Ions by Porous Material Prepared with Silicate Tailings

open access: yesMinerals, 2019
Tailings generated from mineral processing have attracted worldwide concerns due to creating serious environmental pollution. In this work, porous adsorbents were prepared as a porous block by using silicate tailings, which can adsorb heavy metal ions ...
Dongxia OuYang   +5 more
semanticscholar   +1 more source

Photoemission study of the SiO₂conversion mechanism to magnesium silicate [PDF]

open access: yes, 2010
The objective of this work is to investigate interface chemistries which minimize the interfacial silicon oxide transition region at Si/high-k dielectric interfaces.
Casey, Patrick, Hughes, Greg
core   +1 more source

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