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Abe, Yuta; Nagai, Keiichi; Maie, Mitsuyoshi*; Nakano, Natsuko*; Kawashima, Yuichi*; Takesue, Naohisa*; Saito, Junichi
Dai-23-Kai Doryoku, Enerugi Gijutsu Shimpojiumu Koen Rombunshu (USB Flash Drive), 5 Pages, 2018/06
no abstracts in English
C collected by precipitation and gas-strip methods for dating groundwaterNakata, Kotaro*; Hasegawa, Takuma*; Iwatsuki, Teruki; Kato, Toshihiro
Radiocarbon, 58(3), p.491 - 503, 2016/09
Times Cited Count：5 Percentile：21.26(Geochemistry & Geophysics)Dissolved inorganic carbon (DIC) for C analysis of groundwater is usually extracted by a gas-strip or precipitation method. In this study, the certainty of the two methods for C dating were confirmed. DIC and C concentrations obtained by the gas-strip method were close to the theoretically predicted C value. Conversely, the C value obtained by the precipitation method always showed higher values than the predicted values. The difference in C value between gas-strip and precipitation methods was assumed to arise owing to contamination of modern carbon used in the precipitation method. The applicability of the precipitation method for groundwater should be considered carefully according to the DIC, C concentration of groundwater and purpose of the study being conducted.
Abe, Yuta; Nagai, Keiichi; Maie, Mitsuyoshi*; Nakano, Natsuko*; Saito, Junichi
no journal, ,
no abstracts in English
平塚 一; 阿部 哲也; 諸橋 裕子
大間知 聡一郎*
JP, 2018-195309 
Patent licensing information Patent publication (In Japanese)
【課題】アルミニウム切粉に付着した切削油および水分を除去または分解するためのキルンを設けることなく、したがってキルンに投入するエネルギーを不要にしたうえで、高純度のアルミニウムをリサイクルできる処理装置を提供する。 【解決手段】アルミニウム溶解炉と、前記アルミニウム溶解炉の上部に設けられた、筒状のサイクロン本体と、前記サイクロン本体内に切削油および水分が付着したアルミニウム切粉を気体とともに流入させる流入口と、前記サイクロン本体内から前記アルミニウム切粉を含まない気体を流出させる流出口とを有するサイクロンユニットとを含むアルミニウム切粉の処理装置。
