start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue=4 article-no= start-page=2407 end-page=2416 dt-received= dt-revised= dt-accepted= dt-pub-year=2023 dt-pub=20230530 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Sequential flotation of 4 components in silicon-based waste solar cells en-subtitle= kn-subtitle= en-abstract= kn-abstract=Si, Al, Cu, and Ag particles’ mixture which mainly composes pulverized silicon-based waste solar cells were individually separated by the batch flotation experiments with high recovery and content, and then a general flow chart of the sequential flotation procedure of n-component was postulated including 2-, 3-, and 4-components. The n-component mixture was separated to 1: n-1 or i: j (i + j = n) by a flotation procedure and n-1 times operation was necessary to divide into the individual component. The first flotation process to separate Al into the froth layer was carried out with a collector of SDS solution after dipping Si, Al, Cu, and Ag mixture into the SDS solution. Si was separated in the froth by the second flotation with a collector of a commercial neutral detergent after Al etching by HCl, and Si, Cu and Ag mixture dipped in the detergent. The Cu and Ag mixture was calcinated at 673 or 773 K and dipped into the detergent, and the third flotation with the collector of the detergent led to Cu in the froth and Ag in the sediment. The 4-component mixture was successfully separated into each component by the 3-consecutive flotation processes. en-copyright= kn-copyright= en-aut-name=MizukawaMami en-aut-sei=Mizukawa en-aut-mei=Mami kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=NishimuraNoriko en-aut-sei=Nishimura en-aut-mei=Noriko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=UddinMd. Azhar en-aut-sei=Uddin en-aut-mei=Md. Azhar kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=KatoYoshiei en-aut-sei=Kato en-aut-mei=Yoshiei kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=UchidaYu-ichi en-aut-sei=Uchida en-aut-mei=Yu-ichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= affil-num=1 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=2 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=3 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=4 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=5 en-affil=Department of Applied Chemistry, Faculty of Fundamental Engineering, Nippon Institute of Technology kn-affil= en-keyword=Flotation kn-keyword=Flotation en-keyword=Multicomponent kn-keyword=Multicomponent en-keyword=Waste solar cell kn-keyword=Waste solar cell en-keyword=Silicon kn-keyword=Silicon en-keyword=Recovery kn-keyword=Recovery END start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue=2 article-no= start-page=826 end-page=834 dt-received= dt-revised= dt-accepted= dt-pub-year=2022 dt-pub=20221210 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Flotation kinetics of aluminum powders derived from waste crystalline silicon solar cells and its comparison between batch, continuous and column flotation practices en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this study, floatability rate of aluminum (Al) powders was analyzed for the purpose of separating valuable resources from residual materials in waste photovoltaic (PV) solar cells, and equations for flotation recovery were developed for various flotation types according to the rate-determining steps of the gas flowrate and feed rate. The flotation rate became a zero-order reaction at the rate-determining step of the gas flow rate and had the same form between a batch and continuous typed practices by substituting residence time with real time. Under the rate-determining step of the feed rate, the flotation rate was expressed by the linear combination of the first-order reaction of an even group material. The flotation recovery rate of Al powders was analyzed by the data of a batch floatability experiment and indicated by the linear expression of the first-order reaction of two groups due to the rate-determining step of the feed rate. The calculated separation recovery of n-cell type device increased as the number of cells increased and approached that of the batch and column types. en-copyright= kn-copyright= en-aut-name=KatoYoshiei en-aut-sei=Kato en-aut-mei=Yoshiei kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=HaradaSho en-aut-sei=Harada en-aut-mei=Sho kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=NishimuraNoriko en-aut-sei=Nishimura en-aut-mei=Noriko kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=UddinMd. Azhar en-aut-sei=Uddin en-aut-mei=Md. Azhar kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=UchidaYu-ichi en-aut-sei=Uchida en-aut-mei=Yu-ichi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= affil-num=1 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=2 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=3 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=4 en-affil=Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University kn-affil= affil-num=5 en-affil=Department of Applied Chemistry, Faculty of Fundamental Engineering, Nippon Institute of Technology kn-affil= en-keyword=Flotation kn-keyword=Flotation en-keyword=Recovery kn-keyword=Recovery en-keyword=Waste solar cell kn-keyword=Waste solar cell en-keyword=Column flotation kn-keyword=Column flotation en-keyword=Cell-to-cell flotation kn-keyword=Cell-to-cell flotation END start-ver=1.4 cd-journal=joma no-vol=135 cd-vols= no-issue= article-no= start-page=121 end-page=126 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070625 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Conflicts Related to Implementing the Individualized Education Program for Students with Disabilities in the United States: Parent and Student Rights and School Responsibilities under the Special Education Law kn-title=アメリカ合衆国における障害のある子どもの教育権と個別教育計画　-特殊教育関連サービスの提供に関する係争事例の検討- en-subtitle= kn-subtitle= en-abstract= kn-abstract=アメリカ合衆国における特殊教育関連サービスの提供をめぐる係争事例を検討し、法制度の実践的応用に伴う課題について明らかにすることを目的とした。とりわけ、個別教育計画(IEP)の記載内容とサービス提供の関係が議論された2つの係争事例をとりあげた。その結果、事例における議論の主な背景要因として、①サービス提供を組織的確立するための学校システムの構築、②共通理解を深めるための関係者における連携の強化が課題となっていた。これらの課題を踏まえ、組織的な管理・支援体制を構成し、子どもに関わる全ての者が適切に情報・理解を共有するための継続的な機会確保の必要性が示唆された。 en-copyright= kn-copyright= en-aut-name=YoshitoshiMunehisa en-aut-sei=Yoshitoshi en-aut-mei=Munehisa kn-aut-name=吉利宗久 kn-aut-sei=吉利 kn-aut-mei=宗久 aut-affil-num=1 ORCID= en-aut-name=NishimuraNoriko en-aut-sei=Nishimura en-aut-mei=Noriko kn-aut-name=西村典子 kn-aut-sei=西村 kn-aut-mei=典子 aut-affil-num=2 ORCID= en-aut-name=MiyoshiMituko en-aut-sei=Miyoshi en-aut-mei=Mituko kn-aut-name=三好美津子 kn-aut-sei=三好 kn-aut-mei=美津子 aut-affil-num=3 ORCID= en-aut-name=YokouchiRie en-aut-sei=Yokouchi en-aut-mei=Rie kn-aut-name=横内理絵 kn-aut-sei=横内 kn-aut-mei=理絵 aut-affil-num=4 ORCID= en-aut-name=MasudaYasuko en-aut-sei=Masuda en-aut-mei=Yasuko kn-aut-name=益田泰子 kn-aut-sei=益田 kn-aut-mei=泰子 aut-affil-num=5 ORCID= en-aut-name=UraikeSatoko en-aut-sei=Uraike en-aut-mei=Satoko kn-aut-name=浦池聡子 kn-aut-sei=浦池 kn-aut-mei=聡子 aut-affil-num=6 ORCID= en-aut-name=NishiSachiyo en-aut-sei=Nishi en-aut-mei=Sachiyo kn-aut-name=西幸代 kn-aut-sei=西 kn-aut-mei=幸代 aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 affil-num=5 en-affil= kn-affil=岡山大学 affil-num=6 en-affil= kn-affil=岡山大学 affil-num=7 en-affil= kn-affil=岡山大学 en-keyword=特殊教育関連サービス kn-keyword=特殊教育関連サービス en-keyword=個別教育計画 kn-keyword=個別教育計画 en-keyword=理学療法 kn-keyword=理学療法 en-keyword=作業療法 kn-keyword=作業療法 en-keyword=言語療法 kn-keyword=言語療法 END