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효율적 퇴비화를 위한 온도제어 공기공급방식의 적용에 관한 연구
김병태(Byung-Tae Kim),김정욱(Jung-Wk kim) 유기성자원학회 1994 유기물자원화 Vol.2 No.1
우리나라 도시고형폐기물은 퇴비화에 적합한 조건을 갖추고 있으나, 퇴비화 공정개발이 미약하여 폐기물퇴비화를 실용화하지 못하고 있다. 폐기물 퇴비화의 실용화를 위하여는 최종퇴비의 질을 높이면서도 대량의 폐기물을 단기간에 처리할 수 있도록 공정제어를 하여야 한다. 이를 위하여 최적온도를 지속적으로 유지하도록 공기공급량을 제어하는 방식 (온도제어 공기공급방식) 이 있다. 본 연구에서는 우리나라 도시고형폐기물에 온도제어 공기공급방식을 적용하여 퇴비화 과정중의 공정효율과 최적온도를 분석하고자 하였다. 실험결과, 온도제어 공기공급방식이 일정공기공급방식에 비하여 짧은 기간에 분해효율과 건조효과가 높은 것으로 나타났다. 또한 우리나라 도시고형폐기불 퇴비화의 최적온도는 50~54 "c로 평가되었다. Municipal solid wastes in Korea have physical and chemical properties suitable for composting, but composting has had little practical use in solid waste disposal until now because of a lack of understanding of process control. For practical use of composting, process control must be capable of maintaining good product quality while large quantities are composted in a short period of time. Ventilation control to maintain optimum temperature(Temperature Feedback Aeration Method) is reported to be convenient to operate. The purpose of this study is to analyze process efficiency and optimum temperature in the temperature feedback aeration method for composting of municipal solid wastes. The results of this study show that degradation and drying of substrate in the temperature feedback aeration method are higher than those in the constant aeration method. And the optimum temperature range for composting of solid wastes appears to be 50 ~ 54 "C.
궤양성 대장염 환자에서 5 - Aminosalicylic Acid 로 유발된 급성 췌장염
이현영(Hyun Young Lhee),김병익(Byung Ik Kim),유태우(Tae Woo Yoo),이호철(Ho Chul Lee),정찬희(Chan Hee Jung),신헌섭(Hun Sub Shin),박승하(Seung Ha Park),김정욱(Jung Uk Kim),조용균(Yong Kyun Cho),이준행(Jun Haeng Lee),박창영(Chang Young 대한소화기학회 2002 대한소화기학회지 Vol.40 No.4
Acute pancreatitis is a rare complication of 5-aminosalicylic acid (5-ASA) treatment. We recently experienced a case of acute pancreatitis secondary to 5-ASA in a patient with ulcerative colitis (UC). A 25-year-old man was admitted for bloody diarrhea and lower abdominal pain. Mesalazine was used under the diagnosis of ulcerative colitis, but the symptoms were not improved. After symptomatic improvement by steroid treatment, mesalazine was restarted for maintaining the remission. On the next day, he had a sudden severe epigastric pain with elevation of serum amylase and lipase levels. Drug- induced pancreatitis was suspected, and the mesalazine was discontinued. His abdominal pain disappeared, and his serum amylase and lipase levels returned to normal. After the administration of sulfasalazine, however, pancreatitis was relapsed. In conclusion, we suggest that drug-induced pancreatitis should be suspected in any patient who develops new abdominal pain while receiving 5-ASA. (Korean J Gastroenterol 2002; 40: 282-285)
건강검진 수진자에서 비알코올성 지방간 및 간기능 장애 인슐린 저항성과의 관계
박승하 ( Seung Ha Park ),김병익 ( Byung Ik Kim ),유태우 ( Tae Woo Yoo ),김정욱 ( Jeong Wook Kim ),조용균 ( Yong Kyun Cho ),성인경 ( In Kyung Sung ),박창영 ( Chang Young Park ),손정일 ( Chong Il Sohn ),전우규 ( Woo Kyu Jeon ),이원 대한소화기학회 2003 대한소화기학회지 Vol.41 No.5
Background/Aims: Nonalcoholic fatty liver disease (NAFLD) is one of the major causes of the elevation of aminotransferase when other causes of liver disease are excluded. Insulin resistance is an essential pathophysiologic factor in the development of NAFLD and metabolic syndrome. We hypothesized that there would be an association between the elevation of aminotransferase and metabolic syndrome. Methods: A total of 6,244 health screen examinees (3,975 men, 2,269 women) with no evidence of viral hepatitis and alcohol abuse were enrolled in this study. We assessed the clinical characteristics using liver function test (LFT) and ultrasonography. Homeostatic model assessment (HOMA) was used as an index of insulin resistance. Results: According to the increment of HOMA, the prevalence of abnormal liver function significantly increased after adjustment with age, sex, and obesity (p<0.01). Abnormal liver function remained as an independent risk factor for metabolic syndrome in both sexes after logistic multiple regression analysis with age and body mass index (p<0.001 in male, p<0.05 in female). Conclusions: The abnormal liver function was closely associated with insulin resistance. Thus, it can be an independent risk factor for metabolic syndrome. Index of insulin resistance such as HOMA may serve as a good parameter for follow-up during the treatment of NAFLD. (Korean J Gastroenterol 2003;41:366-373)