Results 281 to 290 of about 134,677 (321)
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Photoluminescence of barium-strontium niobates and strontium pyroniobate
Ferroelectrics, 1982The photoluminescence (PL) of nominally pure Barium-Strontium Niobates (SBN) with various barium contents, and SBN doped by cerium and Strontium Pyroniobate (SNO) were studied. The investigation included measurements of the spectral characteristic of PL, PL excitation spectra, the temperature dependence of PL intensity, thermoluminescence (TL), the ...
A. R. Mordukhayev +3 more
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STRONTIUM “ RICKETS ” : BONE, CALCIUM AND STRONTIUM CHANGES
Australasian Annals of Medicine, 1961SummaryWhen rats were fed increasing levels of strontium in the diet, inhibition of calcification was shown by increased width of epiphyseal cartilage, presence of uncalcified bone matrix and decreased ash weight of bone. When ash weight was used as an indicator of mineralization, inhibition of calcification became greater as the dietary strontium ...
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Strontium and strontium ranelate: Historical review of some of their functions
Materials Science and Engineering: C, 2017The review covers historical and last decade's scientific literature on the biological and clinical role of strontium (Sr) and strontium ranelate (Sr RAN). It enrols the description of the main effects of Sr on supportive tissue, its proven and possible morphopathogenetical mechanisms and the interaction with the bone, and especially focuses on the Sr ...
M. Pilmane +4 more
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Preparation of strontium ferrite from strontium residue
Chinese Journal of Geochemistry, 2012Strontium ferrite was prepared from Strontium Waste Residue (SWR) as a material. Strontium chloride was obtained by leaching SWR with ammonia chloride, and then SrCl2 was converted to SrCO3. Strontium ferrite (SrFe12O19) was formed by roasting the mixture of SrCO3 and FeCl3 in a proper proportion.
Jianjun Ren +4 more
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ChemInform Abstract: Potassium‐Strontium and Ammonium‐Strontium Tripolyphosphates.
ChemInform, 1989AbstractThe reaction between K5P3O10 or (NH4)5P3O10·H2O and Sr(NO3)2 is investigated in aqueous solution at 25 °C with the aim to prepare the novel title compounds in pure state and to find out the optimum conditions for their preparation.
E. A. Prodan, O. P. Ol'shevskaya
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Electron Affinity of Strontium
Physical Review Letters, 1995We have observed a threshold in the electron photodetachment cross section of ${^{88}S\mathrm{r}}^{\ensuremath{-}}$ ions at a photon energy $h\ensuremath{\nu}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.820\mathrm{eV}$ and assign it to a $p$-wave transition from the ${5s}^{2}5p^{2}P$ ground state in ${\mathrm{Sr}}^{\ensuremath{-}}$ to the $5s5p^
Dan Berkovits +4 more
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1981
Publisher Summary For the determination of strontium in silicate and other rocks, flame photometric and atomic absorption techniques have displaced both photometric and gravimetric procedures. In common with calcium and barium, strontium has a very characteristic flame emission. The strongest emission of strontium is at the resonance line of 460.7 nm.
P G JEFFERY, D HUTCHISON
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Publisher Summary For the determination of strontium in silicate and other rocks, flame photometric and atomic absorption techniques have displaced both photometric and gravimetric procedures. In common with calcium and barium, strontium has a very characteristic flame emission. The strongest emission of strontium is at the resonance line of 460.7 nm.
P G JEFFERY, D HUTCHISON
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Bone, 2013
<p>Strontium ranelate is an approved pharmacotherapy for osteoporosis in Europe and Australia, but not in Canada or the United States. Strontium citrate, an alternative strontium salt, however, is available for purchase over-the-counter as a nutritional supplement. The effects of strontium citrate on bone are largely unknown.
Gregory R. Wohl +7 more
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<p>Strontium ranelate is an approved pharmacotherapy for osteoporosis in Europe and Australia, but not in Canada or the United States. Strontium citrate, an alternative strontium salt, however, is available for purchase over-the-counter as a nutritional supplement. The effects of strontium citrate on bone are largely unknown.
Gregory R. Wohl +7 more
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Rubidium/Strontium and Strontium-87/Strontium-86 Ratios in Deep Crustal Material
Nature, 1964RECENT work on the strontium isotopes, stimulated by a paper of Gast1, has shown variations in the initial 87Sr/86Sr ratio of rocks. The interpretation of this observation has not been clear but it has been implied that ratios similar to those in basalts define an origin more or less directly from mantle material2–4. Higher ratios have been interpreted
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Solid State Communications, 1970
Abstract Monodomain SrTiO 3 crystals were found in less than 0.3 mm thick (110) plates below the cubic-to-tetragonal phase transition. Up to 98.5% monodomain samples were observed for rectangular plates with edges 7 mm // [001] and 2 mm // [110]. Quantitative results were obtained by monitoring EPR spectra of Fe 3+ impurities. Optical dichroism was
K. A. Mueller +3 more
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Abstract Monodomain SrTiO 3 crystals were found in less than 0.3 mm thick (110) plates below the cubic-to-tetragonal phase transition. Up to 98.5% monodomain samples were observed for rectangular plates with edges 7 mm // [001] and 2 mm // [110]. Quantitative results were obtained by monitoring EPR spectra of Fe 3+ impurities. Optical dichroism was
K. A. Mueller +3 more
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