Results 21 to 30 of about 535,996 (398)

Corrected Method for Interference of Iron on P2O5 during Complete Silicate Analysis in Uranium-producing Ore

open access: yesYankuang ceshi, 2021
BACKGROUND For the determination of P2O5 in complete silicate analysis of uranium-producing ore by alkali fusion-phosphovanoclonolybeate spectrophotometry with wavelength of 420nm, iron (Fe) was detected simultaneously, because Fe as the co-existing ...
WANG Di
doaj   +1 more source

The silicate absorption profile in the ISM towards the heavily obscured nucleus of NGC 4418 [PDF]

open access: yes, 2015
The 9.7-micron silicate absorption profile in the interstellar medium provides important information on the physical and chemical composition of interstellar dust grains.
Alonso-Herrero, A.   +2 more
core   +2 more sources

Calcium silicate-based root canal sealers: a literature review

open access: yesRestorative Dentistry & Endodontics, 2020
Epoxy resin-based sealers are currently widely used, and several studies have considered AH Plus to be the gold-standard sealer. However, it still has limitations, including possible mutagenicity, cytotoxicity, inflammatory response, and hydrophobicity ...
M. Lim   +4 more
semanticscholar   +1 more source

The distribution of silicate strength in Spitzer spectra of AGNs and ULIRGs [PDF]

open access: yes, 2006
A sample of 196 AGNs and ULIRGs observed by the Infrared Spectrograph (IRS) on Spitzer is analyzed to study the distribution of the strength of the 9.7 micron silicate feature.
Antonucci R.   +11 more
core   +3 more sources

Optimizing Broadband Near-Infrared Emission in Bi/Sn-Doped Aluminosilicate Glass by Modulating Glass Composition

open access: yesMicromachines, 2022
The Bi/Sn-doped aluminosilicate glass samples were prepared using a melting–quenching method and their near-infrared (NIR) emission properties were studied.
Song Xiang   +4 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 Environmental Drivers of Benthic Fauna Diversity and Community Composition

open access: yesFrontiers in Marine Science, 2022
Establishing management programs to preserve the benthic communities along the NW Pacific and the Arctic Ocean (AO) requires a deep understanding of the composition of communities and their responses to environmental stressors.
Hanieh Saeedi   +5 more
doaj   +1 more source

Iron, silicate, and light co-limitation of three Southern Ocean diatom species [PDF]

open access: yes, 2008
The effect of combined iron, silicate, and light co-limitation was investigated in the three diatom species Actinocyclus sp. Ehrenberg, Chaetoceros dichaeta Ehrenberg, and Chaetoceros debilis Cleve, isolated from the Southern Ocean (SO).
A Abelmann   +50 more
core   +1 more source

Neutron diffraction and Raman studies of the incorporation of sulfate in silicate glasses [PDF]

open access: yes, 2020
The oxidation state, coordination and local environment of sulphur in alkali silicate (R2O-SiO2; R= Na, Li) and alkali-alkaline earth silicate (Na2O-MO-SiO2; M= Ca, Ba) glasses have been investigated using neutron diffraction and Raman spectroscopy ...
Barney, Emma   +3 more
core   +2 more sources

Silicate rock weathering and atmospheric/soil CO2 uptake in the Amazon basin estimated from river water geochemistry: seasonal and spatial variations [PDF]

open access: yes, 2003
Using the data of the CAMREX project (1982–1984) on the water geochemistry of the Amazon river and its main tributaries, it was possible to assess the silicate rock weathering processes and the associated consumption of atmospheric/soil CO2, taking into
Mortatti, Jefferson, Probst, Jean-Luc
core   +2 more sources

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