Results 21 to 30 of about 7,660 (299)
Environmental Systems Research, 2023 Potentially toxic elements (PTE) from industrial activities remain a global concern for their environmental hazards. In particular, strontium is found in drinking water and food, primarily from contamination from the nuclear industry, petroleum ...
Phatchani Srikhumsuk +3 more
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Carbon and Strontium Abundances of Metal‐poor Stars [PDF]
The Astrophysical Journal, 2007 We present carbon and strontium abundances for 100 metal-poor stars measured from R$\sim $7000 spectra obtained with the Echellette Spectrograph and Imager at the Keck Observatory. Using spectral synthesis of the G-band region, we have derived carbon abundances for stars ranging from [Fe/H]$=-1.3$ to [Fe/H]$=-3.8$.
Lai, David K. +3 more
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Surface complexation model for strontium sorption to amorphous silica and goethite
Geochemical Transactions, 2008 Strontium sorption to amorphous silica and goethite was measured as a function of pH and dissolved strontium and carbonate concentrations at 25°C. Strontium sorption gradually increases from 0 to 100% from pH 6 to 10 for both phases and requires multiple
Criscenti Louise J +3 more
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Incorporation of strontium in earthworm-secreted calcium carbonate granules produced in strontium-amended and strontium-bearing soil [PDF]
Geochimica et Cosmochimica Acta, 2013 This paper investigates the incorporation of Sr into biomineralized calcium carbonate granules secreted by the earthworm Lumbricus terrestris. Experiments were conducted using an agricultural soil amended with Sr(NO3)2 to give concentrations in the range 50 - 500 mg kg-1 Sr and a naturally Sr-rich, Celestine-bearing soil containing up to 11 000 mg kg-1
Brinza, Loredana +4 more
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Preparation of strontium hexaferrite magnets from celestite and blue dust by mechanochemical route [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2008 In the present investigation celestite (natural ore of strontium) and blue dust (iron ore fines) have been used for the preparation of strontium hexaferrite powder. The mechanical alloying process has been adopted to prepare strontium hexaferrite powder.
Tiwary R.K., Narayan S.P., Pandey O.P.
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Intermediate Temperature Electrochemical Properties of Al3+ and K+ Double Doped Strontium Silicate
International Journal of Electrochemical Science, 2019 In this study, K+ and Al3+ double doped strontium silicate was synthesized via a solid state reaction method using strontium carbonate, silicon dioxide, potassium carbonate and aluminum trioxide as raw materials.
Wei Chen, Wenli Hu, Hongtao Wang
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Nature Communications, 2023 Spatiotemporal control over crystal nucleation and growth is of fundamental interest for understanding how organisms assemble high-performance biominerals, and holds relevance for manufacturing of functional materials.
Marloes H. Bistervels +4 more
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Geochemistry, Geophysics, Geosystems, 2022 We use geochemical and petrographic data from anoxic sequences of the Nicobar Fan to document extensive marine silicate weathering (MSiW) in the input sediment of the Sumatra subduction zone and the conditions that result in authigenic minerals ...
M. E. Torres +4 more
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npj Clean Water, 2021 Poor drinking water quality in household wells is hypothesised as being a potential contributor to the high prevalence of chronic kidney disease of uncertain aetiology (CKDu) among the farming communities of the Medawachchiya area, Anuradhapura, Sri ...
Liza K. McDonough +3 more
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Open Ceramics, 2023 Strontium-substituted apatite has been proposed as a promising material for osteoporosis treatment. Several synthesis methods have been attempted in the past.
Yuta Otsuka +4 more
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