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볏짚으로부터 바이오오일 생산에 대한 열분해 반응온도의 영향
강보성,박영권,김주식,Kang Bo-Sung,Park Young-Kwon,Kim Joo-Sik 한국자원리싸이클링학회 2006 資源 리싸이클링 Vol.15 No.1
볏짚은 국내에서 유용한 재생 가능한 바이오매스이다. 유동층과 char 분리 장치가 구비된 급속 열분해 장치를 이용하여 볏짚으로부터 바이오오일의 생산에 대한 실험을 수행하였다. 본 연구는 온도변화에 따른 볏짚의 열분해 생성물의 분포와 생성물의 화학적 구성을 알아보고 바이오오일의 활용 가능성을 고찰하고자 했다. 급속 열분해 반응은 $466^{\circ}C,\;504^{\circ}C,\;579^{\circ}C$에서 각각 수행되었다. 유동화 매체로는 생성가스를 사용하였으며 유량은 약 30NL/min 였다. 볏짚의 열분해 결과 기체, 액체, 고체 물질을 얻을 수 있었으며, 기체물질은 GC(TCD, FID)를 이용하여 정성적, 정량적 분석을 하였다. 액체물질은 상등액과 tar가 풍부한 하등액으로 분리하여 발열량, 원소분석, 수분, GC/MS를 통해 화학구성성분을 분석하였다. 고체물질인 char는 원소분석을 하고 그 발열량을 측정하였다. 액체물질인 바이오오일은 화학특성 분석결과 대체 연료유뿐만 아니라 화학 원료물질로서의 사용가능성을 볼 수 있었다. Rice straw is one or the main renewable energy sources in Korea. Bio-oil is produced from rice straw with a lab-scale equipment mainly with a fluidized bed and a char removal system. It was investigated how the reaction temperature affected the production of bio-oil and the efficiency of a char removal system. To elucidate how the temperature depended on the production of bio-oil, experiments were conducted at $466^{\circ}C,\;504^{\circ}C\;and\;579^{\circ}C$, respectively. The mass balance was established in each experiment, and the produced gas and oil were analyzed with the aid of GCs and a GC-MS system. The char removal system is composed of a cyclone and a hot filter. Tn the experiments, we observed that the production of bio-oil was decreased with temperature, and the bio-oil contained very useful chemicals.
쇼그렌 증후군 환자에서 작은 침샘 조직검사의 진단적 효용성
강보성,김재욱 대한이비인후과학회 부산,울산,경남 지부회 2015 임상이비인후과 Vol.26 No.2
Background:Sjögren’s syndrome is difficult to diagnose. Because several tools for exact diagnosis have been made over the decades. However none of them is both sensitive and specific. American College of Rheumatology (ACR) issued new diagnostic criteria based on only three objective tests in 2012. These are immunoserologic test, minor salivary gland biopsy, ocular staining test. We analyzed diagnostic effectiveness of minor salivary gland biopsy in suggesting Sjögren’s syndrome patients based on ACR guideline. Methods:We analyze 41 patients who suggesting Sjögren’s syndrome retrospectively about Immunoserologic results, minor salivary gland biopsy results, ocular staining test. Sensitivity and specificity of minor salivary gland biopsy was obtained. Results:Minor salivary gland biopsy sensitivity was 70.8% and specificity, 100%, positive predictive value, 100%, negative predictive value, 70.8%. No salivary gland biopsy complication was noted in 41 patients. Conclusions:Minor salivary gland biopsy is objective test and keyword method for Sjögren’s syndrome final diagnosis. High specificity can help physician to exclude normal people from Sjögren’s syndrome patients. Due to relatively invasive procedure and low sensitivity, this procedure could be recommended to last step for final diagnosis.
康保成 한양대학교 동아시아문화연구소 2012 동아시아 문화연구 Vol.51 No.-
Yang Xi is one kind of Nuo Xi. Xiangren Nuo, which was recorded in the Fellow Villager of Analects of Confucius, was recorded as Xiangren Yang in the Jiaote Sheng of Book of Rites(≪礼记․郊特牲≫). When the character “禓”(Yang) of Xiangren Yang pronounces yáng, it is, no matter in grapheme or pronunciation, similar to the other character “阳(陽)” (Yang) of Yang Xi. Thus, the character “阳(陽)”(Yang) of Yang Xi originated from the “禓”(Yang) of Xiangren Yang. The Yang Xi in Southwest China has three kinds of performing forms, and they are Puppet Xi(傀儡戏), Entertaining‐gods Xi (酬神戏) which are played by sorcerer or witch, and Entertaining‐human Xi (以娱乐功能为主的小戏). It is obvious that Yang Xi is a typical case that analyzes the relationship between primitive belief and Xiju and, the one between Sacrifice Xiju and Aesthetic Xiju. Seeing from this case, it is positive that Aesthetic Xiju has evolved from Sacrifice Ritual. “阳戏”是傩戏的一种。《论语․乡党》篇中的“乡人傩”,在《礼记․郊特牲》中记为“乡人禓”。而当“乡人禓”之“禓”读[yáng]的时候,无论字形、读音,都与“阳戏”之“陽”(陽)相近。故“阳戏”之“陽”(陽)即来自“乡人禓”之“禓”。中国西南地区的阳戏有三种表演形态,即傀儡戏、巫优扮演的酬神戏和以娱乐功能为主的小戏。可见阳戏是剖析原始宗教与戏剧关系、祭祀戏剧与观赏性戏剧关系的一个典型个案。从这一案例看,祭神仪式演进成为观赏性戏剧是完全可能的。
인터넷 관광정보 이용 경험이 관광만족에 미치는 영향 : 제주도 관광객을 중심으로
강보성,노영희 경기대학교 소성관광종합연구소 2003 여가관광연구 Vol.7 No.-
The emergence of new interactive technologies has tremendously affected to travel and tourism industries as well as tourists who are willing to get travel related information through the internet. However, there are few studies on the internet, as the donor of tourism media, which influences to the degree of tourists satisfactions. Therefore, the purpose of this study is to examine the relationship between the internet users and their satisfactions degrees in comparison with non users. According to this study, tourists who satisfy more with the travel related information through the internet have higher satisfaction degrees on a certain travel. However, there is no significant relationship to the degree of satisfactions between the internet users and non users. Also, among the internet users, tourists who had a reservation or purchased tourist products through internet were more satisfied with the internet as the major tourism media. Therefore, the internet as the donor of tourism media consequences on the degree of tourist satisfactions after all.
생체흡수성 판 부목이식을 이용한 비중격 미부 만곡증의 교정
강보성,김정태,이현수,신재민 대한이비인후과학회 2016 대한이비인후과학회지 두경부외과학 Vol.59 No.9
Caudal septal deviation is difficult to correct due to elasticity of cartilage. Septal batten graft is a useful surgical technique used for correction of caudal septal deviation and the septal cartilage is used mainly for graft material. However, in some cases (i.e., revision surgery), its quality may be insufficient or inadequate to be useful. Septal batten graft with a bioabsorbable plate can be an alternative in these cases. The use of a bioabsorbable plate connected with septal cartilage would facilitate surgical correction of severe caudal septal deviation and offer mechanical stability until the manipulated cartilage heals. With a brief review of the literature, we describe our experience of treating a 29-year-old woman with severe caudal septal deviation and clinical summary of 7 patients who underwent septal batten graft using a bioabsorbable plate for caudal septal deviation. Korean J Otorhinolaryngol-Head Neck Surg 2016;59(9):680-3