Results 261 to 270 of about 98,671 (308)
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Journal of Dental Research, 1974
Hydroxyapatite, fluorapatite, and chlorapatite materials were synthesized and their sintering characteristics were studied. The compressive strength of the apatites was determined and is given as a function of density. Scanning electron micrographs of the typical material structure are given.
W R, Rao, R F, Boehm
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Hydroxyapatite, fluorapatite, and chlorapatite materials were synthesized and their sintering characteristics were studied. The compressive strength of the apatites was determined and is given as a function of density. Scanning electron micrographs of the typical material structure are given.
W R, Rao, R F, Boehm
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Science, 2014
Wetted Apatite The long-running story of the dry Moon was rewritten a few years ago when hydrogen-bearing glass spherules were discovered. The highest water contents are found in lunar apatite, at levels suspiciously comparable to the water content of Earth apatites. Boyce et al.
J W, Boyce +4 more
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Wetted Apatite The long-running story of the dry Moon was rewritten a few years ago when hydrogen-bearing glass spherules were discovered. The highest water contents are found in lunar apatite, at levels suspiciously comparable to the water content of Earth apatites. Boyce et al.
J W, Boyce +4 more
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Adsorption of oleate on apatite
Mining, Metallurgy & Exploration, 1987Adsorption experiments were conducted at two different solid loadings to investigate the mechanism of oleate adsorption on apatite. Adsorption density at pH 10 was found to be dependent on solids loading in an oleate concentration region where surface precipitation could occur.
Moudgil, B.M. +2 more
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Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, 2010
We present Apatite, a new tool that aids users in learning and understanding a complex API by visualizing the common associations between its various components. Current object-oriented API documentation is usually navigated in a fixed tree structure, starting with a package and then filtering by a specific class.
Daniel S. Eisenberg +2 more
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We present Apatite, a new tool that aids users in learning and understanding a complex API by visualizing the common associations between its various components. Current object-oriented API documentation is usually navigated in a fixed tree structure, starting with a package and then filtering by a specific class.
Daniel S. Eisenberg +2 more
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Science, 1969
More than 25 atomic percent of aluminum can substitute for other cations in the structure of apatite [ A 10 ( X O 4 ) 6 Z 2 ]. Such a synthetic product was obtained by expelling volatile constituents (H
D J, Fisher, D, McConnell
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More than 25 atomic percent of aluminum can substitute for other cations in the structure of apatite [ A 10 ( X O 4 ) 6 Z 2 ]. Such a synthetic product was obtained by expelling volatile constituents (H
D J, Fisher, D, McConnell
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[Need for the differentiation of apatite and carbonate apatite].
Zeitschrift fur Urologie und Nephrologie, 1989With extensive analytical and clinical examinations it is shown that the proof of carbonate in apatite may allow no additional reference of an infection with urea-splitting bacteria. With certain analytical methods the presence of carbonate is demonstrable in each urinary calculus apatite phase.
G, Brien +4 more
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The Reaction of Monofluorophosphate with Apatite
Caries Research, 1972The action of sodium monofluorophosphate on Syntheti chydroxyapatites has been studied using pure mono- syntheticfluorophosphate solutions.Monofluorophosphate-treated hydroxyapatite was less soluble in acid buffer than fluoride-treated mineral of similar fluorine content. During the reaction some orthophosphate was liberated from the solid and addition
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[Fluoride ions and apatite recrystallization of apatite in enamel].
Prakticke zubni lekarstvi, 1991The authors discuss the basic process on which the principle of fluoridation in based--i.e. the mutual exchange of F- ions and the OH- group in hydroxyapatite of enamel. Model investigations assessing the energy difference between hydroxyapatite and F- and fluorapatite and the OH- group indicate that fluorapatite tends to release steadily fluoride ions
O, Brázda, R, Zahradník
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Hydrothermal preparation of fibrous apatite and apatite sheet
Solid State Ionics, 2002Abstract Hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 :HA) with highly designed microstructures is required for bone filling materials and tissue engineering of cultured bones. This study deals with the shape control of HA particles and preparation of HA sheet from fibrous HA.
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