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尹美和(Mi-hwa Yoon) 한국영어교육연구학회 2007 영어교육연구 Vol.- No.34
The birth of detective story began with the development of novel. It was the result coming from the rapid growth of city and the advance of science. A crime was expanded in the complex cities, and that enhanced the police system and scientific crime investigation. Also, positivism science can clear not only biological process in human body but also procedure of thought. Economical growth accompanying with capitalism made the reading public come up to the surface, and which accelerated the development of detective novel. Changing circumstance distributed the right to write to the public and then, they could begin to write. The public who could write reflected their though and feeling into text. Like as a matter of life and death depends on the hand of the audience, many parts of literature genre rely on readers' judgments. The times in which a reader kept though and questions in his mind has gone. Development and expansion of media have inspired craving for writing into the public. However, not all the public began to write detective story even though the desire for writing was raised in the public. Also, the theme in detective novel which is murder, was not ordinary experience so that it was not easy to run into a fragrant crime in trivial round of daily life. The distinctive characteristic of detective story intimately associated with social evolution is modernity. The method of investigation in detective story depends on not preternatural or superstition but logical and scientific inspection. That is the modernity inside detective story. However, detective story was admitted inferior to other genre because it was reflected to public taste and it was positioned lower ranking in literature for long time. In twenty one century, many literature genre has faced on crisis. Emergency of reflection media has taken off eyes of readers and recently appearing text couldn't be categorized one genre, which demonstrates cross-over feature. This moment at which many critics says literature's crisis is the time to grasp opportunity. Detective story in this time has made an effort to enter territory of real literature.
퇴적물을 이용한 미생물연료전지에서 산화전극에 따른 전력생산비교
윤미화 ( Mi Hwa Yoon ),정석희 ( Sok Hee Jung ),이승목 ( Seung Mok Lee ),양재규 ( Jae Kyu Yang ) 한국수처리학회 2011 한국수처리학회지 Vol.19 No.3
Because sediment microbial fuel cells (SMFCs) utilize organic materials and microbial catalysts in river or oceanic sediment for electricity generation, high sustainability can be ensured in SMFC operation. However, oligotrophic sediment often creates limitation of electron donor (i.e., organic matter). It results in low power production and poor sustainability of SMFCs. The objective of this study is to evaluate electricity generation using sacrificial magnesium anodes and graphite anodes with or without chitin addition in SMFCs. During 40 days, maximum power densities of magnesium, graphite, magnesium and chitin, and graphite and chitin were 1100, 0, 1575 and 2 ㎽/㎡, respectively. The combination of magnesium and chitin produced the highest power, followed by magnesium electrode, showing combined electrochemical reactions from magnesium corrosion and chitin oxidation increased electricity generation by 30%. A magnesium electrode supplemented with chitin was more slowly corroded than the magnesium alone because chitin addition slowed magnesium corrosion. It shows strict oligotrophic condition of sediment, suggesting necessity of substrate addition in SMFCs. The power level obtained in our experiment using magnesium and chitin was enough for operating oceanographic instruments, which can be possibly deployed in the coastal ocean.