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우제원 서울대학교 미국학연구소 2015 미국학 Vol.38 No.2
Famous slave narratives of the 1830s and 1840s, which were edited, outlined, and advertised by abolitionists, typify romantic and nationalistic ideals as if they were epitomized in the runaway slave as symbol of black humanity triumphant over corrupt institutions. However, a few slave narratives, not only written by but also published by their authors without the abolitionist aids, provide us with an important aspect of the slave narrative genre beyond its canons. This essay analyzes William Grimes’s Life of William Grimes, the Runaway Slave (1825, 1855), which was designed explicitly to raise money for its author, who had become penniless as a result of a series of legal fights for his freedom and civil rights. Grimes’s narrative exemplifies self-published slave narratives in the U.S. that do not subscribe the abolitionist framing of what the slave narrative should be, but establish African American authorship by redeeming the materialized blackness in the print market.
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廢 망간電池로부터 黃酸 암모늄에 의한 Mn 성분의 분리 회수에 관한 연구
박용성,우제원,황영애 한국자원리싸이클링학회 2000 資源 리싸이클링 Vol.9 No.6
본 연구는 폐 망간전지의 음극합체로부터 Mn성분을 분리 회수할 수 있는 새로운 공정개발을 위하여 폐 망간전지의 음극합체와 황산암모늄과의 분해반응을 조사하였다 최적 분해반응 조건은 반응온도 $425^{\circ}C$, 폐 망간전지의 음극합체에 대한 황산암모늄의 무게비 12.0, 반응시간 60분이었고, 이 조건에서 얻어진 Mn의 최고 회수율은 93.5%였다. A reaction between the depolarizing mixture in the spent manganese batteries and ($NH_4$)$_2$$SO_4$was carried out to find a new process for the extraction of Mn component from the spent manganese batteries. The optimum conditions were as follows : the reaction temperature $425^{\circ}C$, ($NH_4$)$_2$$SO_4$weight ratio to the depolarizing mixture in the spent manganese batteries 12.0, reaction time 60 min. Under above conditions manganese was extracted 93.5%.
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