Zobrazeno 1 - 10 of 43 pro vyhledávání: '"Motoharu Kawano"'
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Akademický článek
POLYMORPHIC CHANGES OF CALCIUM CARBONATE MINERALS IN THE PRESENCE OF GALACTURONIC ACID AND GLUCURONIC ACID AT 40–60°C.
Autor: MOTOHARU KAWANO, YASUYUKI KOYAMA
Publikováno v: Clay Science; 2023, Vol. 27 Issue 1/2, p17-24, 8p
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Adsorption Of Cs+ and IO3− Ions by Pseudoboehmite Before and After the Decomposition of Citrate Adsorbed on Its Surface
Autor: Eri Yamada, Motoharu Kawano
Publikováno v: Clays and Clay Minerals. 66:370-378
Citrate is distributed widely in the Earth’s surface environments as a biological product released by microbes and plants. Citrate is also often used as a chelating agent for the selective dissolution of iron coatings and free iron oxides in soils.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60f5b845c75652f3e4051ccd4bbeeaa6
https://doi.org/10.1346/ccmn.2018.064105
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Impact of selenite, arsenate, and silicate oxyanions on the polymorphism and precipitation rate of calcium carbonate minerals in solutions with Mg2+ ions
Autor: Tomoaki Maeda, Motoharu Kawano
Publikováno v: Journal of Crystal Growth. 535:125536
Selenic acid (Se(IV)), arsenic acid (As(V)), and silicic acid are widespread oxyanions in some Earth’s surface environments. To evaluate the effect of these oxyanions on the polymorphism and precipitation rate of calcium carbonate (CaCO3) minerals,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::856d06ba55503286468eaed71ab4e5a5
https://doi.org/10.1016/j.jcrysgro.2020.125536
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Roles of microbial acidic polysaccharides in precipitation rate and polymorph of calcium carbonate minerals
Autor: Motoharu Kawano, Jinyeon Hwang
Publikováno v: Applied Clay Science. 51:484-490
Organic molecules secreted by bacterial cells are capable of influencing dissolution and precipitation rates of various minerals including calcium carbonate (CaCO 3 ) minerals. To evaluate the effects of polysaccharides on the precipitation rates and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::602428ab6c5e2a8e6939846f700303f5
https://doi.org/10.1016/j.clay.2011.01.013
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Microbiotic Formation of Silicate Minerals in the Weathering Environment of a Pyroclastic Deposit
Autor: Katsutoshi Tomita, Motoharu Kawano
Publikováno v: Clays and Clay Minerals. 50:99-110
Bacterial mineralization in weathered pyroclastic deposits of the Kaimondake volcanic ash (4040 ybp) and the Koya pyroclastic flow (6400 ybp) was investigated to evaluate the impacts of bacteria on mineral formation, and to characterize the microbiog
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b1868dd68fb696ba0c268070f5a59b9
https://doi.org/10.1346/000986002761002865
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10
Geochemical modeling of bacterially induced mineralization of schwertmannite and jarosite in sulfuric acid spring water
Autor: Katsutoshi Tomita, Motoharu Kawano
Publikováno v: American Mineralogist. 86:1156-1165
Mineralogy and geochemistry of a sulfuric acid spring water with a pH of 3.37 to 2.89 were investigated to verify the formation processes of iron minerals and the effects of bacteria on their formation. To estimate the solubility of schwertmannite, e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3497d8768d06c4b562b83fbfb775fde5
https://doi.org/10.2138/am-2001-1005
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