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4가지 관엽식물을 이용한 바이오필터의 미세먼지 제거 효과
권계정, 박봉주 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2
In this study, indoor pollutant removal performance of biofilters with four foliage plants (Ficus elastica, Chrysalidorcarpus lutescens, Anthurium schott, Spathiphyllum spp.) was evaluated using tobacco smoke as pollutant. The removal performance of particulate matters (PM1, PM2.5, PM10) was compared to evaluate the effect of control and plants. The performance of PM1 diffuse suppression was greatest in the order of Ficus elastica, Anthurium schott, Chrysalidorcarpus lutescens and Spathiphyllum spp., while the performance of PM2.5 diffuse suppression was greatest in the order of Anthurium schott, Ficus elastica, Spathiphyllum spp., and Chrysalidorcarpus lutescens. There was no difference found in PM10 removal performance of the control and plant species. For PM1 and PM2.5, however, plants always showed the best removal performance regardless of the plants species followed by the control. There was no difference found in PM10 diffuse suppression between control and plants, because it was decrease rapidly. For PM1 and PM2.5, however, plants always showed better removal performance regardless of the plant species than the control. This is because ultra-fine particles were adsorbed to leaves and absorbed by stoma. The performance of PM removal depends on not a leaf area but a pore size and pore number of plants. It is expected to utilize plant-based biofilter for air pollutant removal in indoor and underground spaces when sufficient ventilation is difficult to be achieved.
루쏘의 『대화』와 에피소드 '라자리로'(Lazarillo)
김계주 명지영어영문학회 1998 명지영어영문학 Vol.3 No.1
Although J.J.Rousseau is widely considered to be on of the greatest writers in the 18th century, he and his works have been criticized unjustly at times. This was a major cause of the unhappiness in his personal life. He earnestly desired to be estimated fairly and ever wrote Dialogues with pain in order to argue on behalf of himself. Rousseau intentionally intersted in the Dialogues an episode of Lazarillo de Luna which was a prototype of Rousseau himself. Therefore, this short episode has a symbolic significance to be situated in the center of the Dialogues.
강계철 한국외국어대학교 외국학종합연구센터 중국연구소 2006 中國硏究 Vol.37 No.-
This is a study on the analysis of the contents such as the abstract, theme, characters, origins of the ancient events in Mai Jian ji, which is Shen Jing's representative work among the works heightening morality and ethics. Shen Jing emphasized in his scenario ethics and morality when describing Wu Bao An and Guo Zhong Xiang who still keep their friendship even when they are between life and death. Also, Shen Jing proposed the supreme principles in the relations such as king and subjects, father and son, husband and wife, friends, and employer and employee. It is found that Shen Jing's sentences deviated a little from the elegant style but he used classic style in his writings.
UV/H_2O_2, UV/TiO_2 시스템에서 염료의 색도 및 COD 제거
김계월,박정미,심수진,이희정,이동석 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.A
The Photocatalytic decolorization and degradation of commercial dyes were studied using a batch reactor. Degussa P25 titanium dioxide and H_2O_2 were used as the photocatalyst and proved to be effective for dyes degradation when they were irradiated with UV light. The light source was a 20W low pressure mercury lamp. Three different kinds of dyes, such as direct dye(congo red), acid dye(acid black) and disperse dye(disperse blue) were tested. Extending the UV only treatment up to 120min, direct dye was decolorized to 60% and degraded to 30% as COD. On the other side, acid and disperse dyes were eliminated less than 10% as color and COD. But, color and COD were eliminated about 90% for all of the three dyes by UV/H_2O_2 system. And then the most effective decolorization was done for direct dye with 96% removal efficiency by UV/TiO_2 system at 120min 500mg/L of TiO_2.
Les Deux Premiers Discours에 나타난 Rousseau의 자연 사상과 인간 행복의 추구
김계주 명지영어영문학회 1996 명지영어영문학 Vol.1 No.-
루소 사상의 가장 큰획은 본래적 인간에 대한 탐구와 놀라운 발견이라고 볼 수 있다. 이것은 인류학적인 또는 역사학적인 의미의 관찰이 아니라 아마도 역사 이전에도 그 후에도 존재하지 않았을 신화적 의미의 고유한 인간에 대한 탐구이다.「인간불평등기원론」에서 루소 자신이 설명한바에 의하면 이것은 “더이상 존재하지 않으며 과거에도 존재하지 않았을 것이며 미래에도 존재하지 않을 그런 상태”에 대한 깊은 사색이다. 루소는 홀로 숲속에서 꿈꾸는 시인처럼 현재의 인간의 모습 속에서 인위적인 것을 제해버린 자연상태의 원래적 인간의 본질을 찾으려고 고뇌하였다. 루소는 유토피아를 꿈꾸는 몽상가가 아니며 가능한한 더 나은, 덜 나쁜 세상을 어떻게 정확한 푯대를 세워놓고 만들어 나갈수 있을까를 모색한 가장 현실적인 이상주의자이다.
『수녀』를 통해 살펴본 디드로(Diderot)의 종교 철학
김계주 명지영어영문학회 1997 명지영어영문학 Vol.2 No.-
Diderot criticized the blind Christianism and said that the superstitions is more injurious than the atheism. Diderot, a humanist, in his novel "La Religieuse", intended to denounce an abuse of the religious "intolerance" in eighteen centry. He purposed also to show us his antipathy against the fanatic Jansenists and the denaturalization which results from the absurd mode life of the society. The heroine of his novel, Suzanne inspires us with the emotion, not only because her suffering excites our sympathy but also because her human nature is morally well expressed.