토양 비소 오염원의 종류가 봉의꼬리의 생육 및 비소 축적에 미치는 영향

한지현,권혁준,이철희 한국자원식물학회 2014 한국자원식물학회지 Vol.27 No.4

This study was carried out to analyze the effect of arsenic types on growth and arsenic accumulation ability of Pteris multifida. Among arsenic pollution sources, Sodium arsenate, Calcium arsenate, Sodium arsenite and Potassium arsenite were treated in horticultural compost contaminated with 500 ㎎·kg -1 . P. multifida was cultivated for 12 weeks. The results of study, Calcium arsenate treatment showed slightly decreased growth of P. multifida. But, growth of P. multifida cultivated in the remaining arsenic treatment was similar to untreated control plot. With only short-term cultivation of 4 weeks, aerial part of P. multifida in Sodium arsenate treatment showed high arsenic accumulation of 2,289.5 ㎎·kg -1 DW. The arsenic accumulation (2,956.0 ㎎·kg -1 DW) was the highest at 12 week. On the other hand, underground part showed the highest arsenic accumulation in Potassium arsenite treatment (2,470.2 ㎎·kg -1 DW) and Calcium arsenate treatment accumulated 1,060.7 ㎎·kg -1 DW of arsenic. Regardless of arsenic types, aerial part of P. multifida was absorbed more than 1000 ㎎·kg -1 DW of arsenic. And removal of arsenic in soil was also higher. Therefore, Pteris multida is considered to be suitable phytoremediation meterial of various arsenic contaminated areas. 비소의 종류에 따른 봉의꼬리의 생육 반응 및 비소 축적능을분석하기 위해 sodium arsenate, calcium arsenate, sodiumarsenite 및 potassium arsenite 등의 4종류를 선정하여 500㎎·kg-1의 농도로 토양에 처리하여 봉의꼬리를 12주간 재배하였다. 그 결과, calcium arsenate 처리구의 봉의꼬리 생육은 다소감소하였으나, 나머지 비소 처리구에서는 무처리구에서 재배한 생육과 비슷하였다. Sodium arsenate 처리구의 봉의꼬리 지상부는 4주의 단기간 재배만으로 2,289.5 ㎎·kg-1 DW의 높은 비소 축적능을 보였으며, 12주에는 비소 축적능이 2,956.0 ㎎·kg-1DW로 더욱 증가하였다. 반면, 지하부는 potassium arsenite 처리구에서 2,470.2 ㎎·kg-1 DW로 가장 높았으며, calciumarsenate 처리구는 1,060.7 ㎎·kg-1 DW의 비소를 축적하였다. 봉의꼬리 지상부의 비소 축적능은 비소의 종류에 관계없이1,000 ㎎·kg-1 DW 이상으로 매우 우수하였다. 그리고 토양의 비소 제거량도 높았다. 따라서 봉의꼬리는 다양한 비소 오염 지역의 식물상 정화기법 소재로 활용이 가능할 것으로 생각된다.

이어도 해양과학기지 PM2.5 탄소 성분의 특성

한지현,신범철,황길영,김자한,길준수,이미혜,심재설 한국대기환경학회 2014 한국대기환경학회 학술대회논문집 Vol.2014 No.10

이어도 해양과학기지 오존의 장기 변화 특성과 오염원별 기여도 파악

한지현,신범철,이미혜,심재설 한국기상학회 2014 한국기상학회 학술대회 논문집 Vol.2014 No.10

식민지적 근대성의 한 양상 : 채만식의『여인전기』 Chae Man-siks A Biography of a Woman

한지현 한민족문화학회 2001 한민족문화연구 Vol.9 No.-

This paper is an analysis of A biography of a Woman by Chae Man-sik. It undertakes the task of tracing the writers literary and social consciousness through a comparative analysis of his various works including A Biography of a Woman which has been branded as a piece of pro-Japanese literature and evaluated as having inferior literary quality, and A Life Story of a Woman , the adaptation of the former after the 1945 Liberation. In the process, the paper reaffirms what the inner motive for pro-Japanese behavior on the part of the pro-Japanese writers of the time had been and proceeds to elucidate the fact that the intellects of those days had pursued to compensate themselves for the self-disavowal they practiced for their pro-Japanese activity by way of confirming their superiority over women. The existing discussions and reviews with regard to the pro-Japanese literature have been made on the issue of the individual writers respective will and principle. However, this was an approach that is not entirely satisfactory in tracking the inner logic of pro-Japanese literature. While it is undeniable that Chae Man-sik produced pro-Japanese writings partly due to the circumstances and the pressure at the time, it was his consciousness to acknowledge Japan, an advanced country, as the principal body in achieving the modernization of Chosun and to regard the role of the Japanese the colonial rule in reality - in the modernization as a positive one that made it possible for him to produce such works. Logics such as the Doctrine of Chosuns Conformity to Japan Common ancestry of Japaneses & Koreans and the Doctrine of Japan-Chosun Integration Homeland(i.e Japan) and Korea as one body became the conceptual devices that granted justification to such a view, a depiction of which can also be seen at the conclusion of A Biography of a Woman when the woman meets her half Japanese brother and the two are described as growing affectionate toward each other. What is significant here, however, is the fact that the structure was set in place, in which Japan was established as the main body of the modernization and Chosun was assumed to be dependent on and thus bound to be integrated into Japan, the result of which was the disavowal of the people of Chosun as the principal body. Since the Doctrine of Japan-Chosun Integration Homeland(i.e Japan) and Korea as one body itself is the logic that demands self-acknowledgement of ethnic inferiority and self-disavowal on the part of the people of Chosun, it stands to reason that such a conclusion was drawn. What bounds to follow self-disavowal is the inner demand for a new self-identity. The problem is that the Chosuns intellects in the 30, typified by the writer Chae Man-sik, had tried to overcome the sense of defeat and inferiority and the sense of impairment of masculinity felt as the result of self-disavowal by way of portraying the traditional image of the women as inferior one. For them to reaffirm self-superiority and self-identity by regarding the women equivalent to feudalistic and incompetent Chosun, the country, and by assuming an enlightening attitude toward the public on the basis of the products of new civilization and knowledge was also the process of identifying themselves with advanced Japan. In order to do that, they placed superiority in the domains traditionally regarded as masculine, on whose basis they prescribed affairs of daily nature, such as child-bearing, nursing, child care, and childs upbringing, for women and assumed the guidance-giving attitude to secure mens superiority over women. One notable characteristic revealed in Chae Man-siks novel A biography of a Woman is the clear dichotomy between the political and economic domain and manners and customs of daily nature; firmly in place behind such a dichotomy is the colonial mens desire for the recovery of their impaired masculinity.

反語法의 性格과 作家의 視線 : 「痴叔」과 「날개」를 중심으로

韓智現 국어국문학회 1974 국어국문학 Vol.- No.64

N-nitroso-N-methylurea가 백서의 치배에 미치는 영향

한지현,조한국 慶熙大學校 齒科大學 1994 慶熙齒大論文集 Vol.16 No.1

The purpose of this study was to evaluate the effect of N-nitroso-N-methylurea(NMU Sigma Co.) on the tooth gem ,teeth as well as the periodontal tissue of the mother rats and also the teeth germs of the prenatal rats. Forty eight female Wistar rats, 200gm in body weight, were used in this experiment, in which pregnancy had been induced in all of them. In the experimental group of 32 a 0.4m1 NMU solution which was diluted in normal saline at a dose of lgm/100m1 was intravenously injected into the tail vein of all thirty two on the 13th day after pregnancy. Arid in the control group of 16, only 0.4m1 of normal saline solution was injected. The 48 pregnant rats were divided into 8 groups, each group consisting of 4 from the experimental group and 2 from the control group. One group was sacrificed on each of the following respective occasions; on the 17th, 19th, and 21rst day of pregnancy as well as on the 5th, 9th, 13th, 20th, and 24th week after delivery. When examined, the mandible, cervical lymph node, mammary gland, heart, liver, lung, kidney, ovary, stomach and colon were removed from moth and prenatal rats obtained from pregnant rats which were sacrificed during pregnancy. Then the histopathologica evaluation was performed by the routine method. The results were as follows; 1. The tooth germs of the mother rats began to form dysplastic dentin and irregular ameloblastic layer on the 21rst day, and metaplastic adenomatoid proliferation of the epithelium in some tooth germs with the time lapse. 2. The pulpal tissue of the mother rats revealed severe congestion of the blood vessels and a dense cellular layer odontoblasts, and then cystic structures and denticles was formed gradually 3. The periodontal tissue of the mothers was thickened by proliferation of fibroblasts with blood vessel congestion, and it showed formation of cysts and denticles in some portions and hypercementosis of molar teeth. The gingiva revealed hyperkeratinization and basilar hyperplasia by epithelial proliferation, but did not show dysplastic or malignant features 4. There was 1 mammary gland carcinoma, 3 lung carcinomas, 3 hepatic carcinomas, 2 kidney sarcomas and 2 colon carcinomas among all organs removed from mothers. 5. In the tooth germs at the cap stage of the prenatal rats, the inner enamel epithelium revealed metaplastic proliferation with hyperchromatic nuclei. 6. The tooth germs of the mothor rats showed more severe developmental disturbance than that of prenatal rats. 7. To conclude, the general administration of NMU induced carcinoma on various organs and nietaplastic adenomatoid proliferation of the epithelium in some tooth germs can be recognized as an early developing feature of odontogenic carcinoma

남한 상세 RCP4.5 시나리오에 대한 기상청 지역기후모델들 간의 비교

한지현,심창섭 한국기상학회 2016 한국기상학회 학술대회 논문집 Vol.2016 No.10

염증성 근육섬유모세포종에 동반된 부종양성 중증 근무력증 1례

한지현,어수택,김양기,구소미,윤희영,석진우,윤은총,김기업 대한내과학회 2023 대한내과학회 추계학술대회 Vol.2023 No.2

여성의 시각에서 본 이태준의 장편소설 연구 : 「딸 삼형제」와「행복에의 흰손들」을 중심으로

한지현 연세대학교 인문과학연구소 1999 人文科學 Vol.80 No.-

玄鎭健 短篇文學 小考 : 플로트의 性格을 중심으로

韓智現 연세대학교 국어국문학과 1976 연세어문학 Vol.7-8 No.-