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생물막 공정에서 질소제거효율 향상을 위한 유기성담체의 효용성 검토
최동욱,최영균,김대영,김윤중,정태학 대한상하수도학회 2003 상하수도학회지 Vol.17 No.3
Availability of organic media for improving nitrogen removal efficiency in a biofilter process was studied. Although, aerobic and anoxic phase could be clearly divided during the operation of single-stage biofilter process and nitrification efficiency was about 80%, denitrification efficiency was very low due to depletion of organic substrate in anoxic phase. However, the deficiency could be improved by addition of organic media in anoxic phase from the simulated result. Nitrogen removal efficiency in a biofilter process packed with organic media in anoxic phase was predicted to be 29% higher than that packed with inorganic media. In addition, about 79% of nitrogen removal efficiency could be obtained from a column test using organic media innoculated by activated sludge. Improvement in nitrogen removal efficiency was responsible for organic leaching from the organic media and the leaching rate was 0.21㎎COD/g-org.media/day.
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한성욱,김형균,강태숙 제주대학교 1971 논문집 Vol.3 No.-
. The raising and feeding of swine in outhouses(Toilet) arose long ago and become a habit or custom for excrement control. The primary reason for practice is that most Cheju people simply do not like to tauch human feces. As a result of swine living in outhouses (Toilet) there is a great danger to humans of infection with cysticercus cellulosae from eating improperly cooked pork. Farmers do not recognize the offet of cysticercus cellulosae on human beings and must receive adequate education. We can slowly eliminate this problom by teaching and re emphasizing the unsanitary conditions and economic loss arising from this practice of W, C swine raising. The local governments and educated citizens as well as know ledgeable farmers must give continuous instruction and guidance in sanitary practices if we are to alter and eliminate swine feeding in the toilet 1. In Cheju-do the family does not include married children, thus the families are necessarily smaller than the mainland and the number of pigs at any house depends upon number of peoples in the family thus it is usually impossible to feed more than one pig since human feces are utilized as pig feed. 2. Since farmers have only a small amount of feed and feces and aware that the growth rate during a pig's first year is greater than its growth rate during the second year thus indicating a highly efficient utilization of feed during the first year, the farmers usually sell the pig within the first year. 3. Since there is a shortage of sanitary pig feed in Cheju-do greater use should be made of the waste products left over from sweet potato starch production. 4. The primary reason for raising the pig in the toilet is that about 90% of the people do not like to touch human feces out of habit. 5. The first objective in improving the feeding of Cheju swine is the instruction of farmers in the sanitation and health problems and econmic loss involved in raising pigs in the toilet because about 50% of the farmers are ignorant of even the existence of cysticercus cellulosae and its due effect on human beings.
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A Study on Protection of Maternal Antibody against Hantavirus in Rats
우영대,--,--,--,--,-- 대한의생명과학회 2005 Biomedical Science Letters Vol.11 No.1
The etiologic agents of haemorragic fever with ranal syndrom (HFRS) in Korea are Hantaan and Seoul virus in the genus Hantavirus, family Bunyaviridae. In order to elucidate the role of maternal immunity to Hantavirus infection in rats, the protective effect of the maternal antibody were studies by using rats experimentally infected with Seoul virus strain HR80-39. Antibody titers of sera and viral antigen against Seoul virus were investigated by indirect immunofluorscence antibody technique (IFA). The dam sera had IFA antibody titers ranging from 1:128 to 1:1,024 after parturition. In fetuses, IFA antibody titers ranged from 1:16 to 1:64 just after birth, increased to peak titers ranged from 1:256 to 1:1,024 in the 2nd week after birth. Challenged newborn rats had IFA antibody titers ranging from 1:64 to 1:1,024 after inoculation. No viral antigen was detected in lungs or other organs of the newborn rats. The maternal antibody to Seoul virus was transferred prenatally through placenta and postnatally via colostrum from immune dams to their offspring. These results demonstrated that maternal antibody to Seoul virus was quite effective in protecting newborn rats against same virus infection.
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이순복,조태순,윤기욱,이종찬,이선미,심성보 성균관대학교 약학연구소 1998 成均藥硏論文集 Vol.10 No.1
The dose-response effect of polysaccharide extracts(PS-1) from Artemisia iwayomogi was investigated under various hepatic disease models. Silymarin, DDB and UDCA were used as reference compounds. We found that the maximal effective dose of PS-1 was 100 ㎎/㎏ b.wt. in CCl_4-induced hepatotoxicity, D-galactosamine-induced hepatitis, in ANIT-induced cholestasis and 300 ㎎/㎏ b.wt. in CCl_4-induced chronic liver disease, 30 ㎎/㎏ b.wt. in chronic bile duct ligation and chronic ethanol fatty liver. These findings suggest that PS-1 fraction protects the hepatocyte against various hepatic injuries, and this fracton might be of therapeutic value.
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최윤선,김장욱,신승욱,이영미,이태호,홍명호 가톨릭대학교 가톨릭대학교 간호대학 호스피스 교육연구소 1998 호스피스논집 Vol.3 No.-
Background : Nowadays, it is possible to prolong the life. And to improve the quality of life of the dying patients, they need to receive not only the physical, pscychological, social and spiritual care but also comprehensive and continuous care. Also, doctors have to consider many ethical issues especially in the dying patients. The purpose of this study is to analyze the doctors' attitude of those ethical issues and emphasize the importance of hospice. Methods : During September 1996, doctors who worked for a university hospital participated in this study by responding to the pre-made questionnaire. It dealt with the most suffering pain, the preferred death place, the use of life maintaining equipments, the application of cardiopulmonary resuscitation(CPR) to terminal patients and the doctors' experience and attitude euthanasia. Results : ① The most suffering symptom in dying patients was pain(60.0%). ② The death place was recommended by doctors was home(58.8%) and hospital (15.4%) in order. ③ 56.9% of doctors answered 'the life maintaining equipments isn't needed', 29.2% of doctors answered' according to the case', and 'needed' was 12.3%. ④ The application of CPR to the terminal patients, without the DNR chart, the only 15.4% of doctors answered "Do not CPR." But with the DNR chart, the percents of 'Do not CPR' was increased to 69.2%. The resident group did more CPR than specialist group(p<0.01). ⑤ The 50.8% of doctors agreed with the passive euthanasia. Conclusions : Many doctors follow the family member's opinion in the ethical issues of the dying patients. Euthanasia is forbidden by the law in Korea, but many doctors agree with the passive euthanasia. Hospice can solve the debating ethical issues including the euthanasia.
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김선형,남상인,엄태준,제갈욱,신현철,권준택 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.1
This paper presents an improved admission policy of 2000 academical year so that more promising students apply for the University. By analyzing the past admission data and the questioned report, a unique admission policy has been suggested as the University feature reflected. One of the major differences compared from the admission policy of the last year is that the entry number limit for the special admission is in creased or newly established such as the entry allocated for recommended students, perfectly attending students, and regionally apportioned students. Also established is the special admission for those licensed students and late educated students.
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