고온 하에서 고 강도 철근 콘크리트 보의 구조거동

신미경,신영수,이차돈,홍성걸,박재영 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

This paper deals with structural behavior of reinforced concrete beams under fire. The main purpose of this study is to investigate the effect of concrete covers and exposure time to fire on the structural behavior of the beams under high temperature condition. The structural behaviors of RC beams with ordinary and high strength concrete under high temperature are compared. For this purpose, twelve beam specimens are fabricated and experimented. Twelve specimens are exposed to the fire for 60 and 90 minutes and to the failure. The research result shows that the main variables of the test, concrete cover and exposure time to fire influence the structural behavior.

어린이에서 함치성 낭과 연관된 매복 소구치와 대구치의 치료

신차욱,김영재,김정욱,장기택,이상훈,김종철,한세현 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.4

치아 매복은 어린이 환자 진료시에 자주 관찰되는 맹출 장애이다. 어린 환자에서 매복된 치아가 존재하는 경우,함치성 낭과 연관이 있을 가능성이 높다. 함치성 낭은 제3대구치를 제외하고는 상악 견치,하악 소구치 부위에서 가장 호발하며,점진적인 증식으로 악골이 팽윤되어 안모를 변화시키며,주위 악골의 파괴와 치근의 흡수를 야기하거나 침범된 치아의 변위를 유발할 수 있으므로,조기 진단과 적절한 치료가 무엇보다도 중요하다. 함치성 낭과 연관된 치아가 과잉치나 지치라면,치아의 발거를 포함한 완전한 낭종 적출술이 적절한 치료라 할 수 있지만,그렇지 않은 경우에는 환자의 심리적,정선적 외상을 예방하기 위해 원인 치아의 보존이 고려되어야 할 것이다. 이뿐만 아니라,치아의 변위 정도,골 파괴 정도,치근의 성숙도,주위 치아와의 관계,환자의 교합과 구강 악안면 영역의 성장 양상 등도 같이 고려되어야 할 것으로 생각된다. 본 증례에서는 위와 같은 사항들을 고려하여,함치성 낭과 연관된 매복 소구치와 대구치블 낭종 적출술 후 공간 유지,외과적 수술과 교정적 견인,외과작 발거 후 교정적 배열 등의 방법을 통해 양호한 치료 결과를 얻었기에 보고하는 바이다. Tooth impaction is a frequently observed eruption anomaly in pediatric dental practice. Young patients with impacted or unerupted teeth have more prediction for dentigerous cyst formation. Dentigerous cyst presents radiographic features. unilocular or multilocular radioluscency. Cysts occur most frequently in the premolar region except third molar. Dentigerous cysts can grow to a considerable size, and large cysts may be associated with a painless expansion of the bone in the involved area. Extensive lesions may result in facial asymmetry, osseous destruction, root resorption of proximal teeth and displacement of associated tooth. The nature of the causative tooth influences the type of surgical treatrnent required for the dentigerous cyst. If the cyst is associated with a supernumerary or wisdom tooth. complete enucleation of the cyst along with extraction of tooth may be the first treatment choice. Otherwise. preservation of the associated teeth should be considered to prevent a young patient from psychological and mental trauma because of the loss of tooth. We should consider the degree of tooth displacement. osseous destruction and growth pattern of oromaxillofacial area when planning treatment. Thus a proper and logical treatment planning can help a proper growth and development of oromaxillofacial area and can save the patient from a psychological and mental trauma. This report describes 4 cases of the management of impacted premolars and molars associated with dentigerous cysts in children.

Matthew Arnold의 批評 小考

辛英子 숙명여자대학교 대학원원우회 1991 원우논총 Vol.9 No.-

Matthew Arnold(1822∼1888), One of the most powerful literary critics of the nineteenth century England, tried to solve the problems of the victorian Age which is in a flux of the breakdown of faith, the rise of the city and its chaotic atomosphere as a poet and a critic. In this thesis, I analyzed his main ideas from his major works into Arnold's view criticism and literary, and his theory of poetry. The function of criticism, in Arnold's sense, is to create a current of fresh ideas, to establish an order of ideas, and to make 'the best that is known and thought in the world' prevail with disinterested endeavour. Arnold thought that the middle class should be invigorated by intelligence and a critical spirit, and cultivated by culture. He emphasized that a critic with disinterestedness and intellectual curiosity should have the reponsibility to interpret "the main movement of the mind" and make the best ideas propagate in the world. Literature whatever it is, would serve to recover culture and morality. Culture is the keyword of Arnold's criticism. Culture is the endeavour to know the best and to make in prevail, in turn benefiting humankind. Later, Arnold considered that the conception of culture is in touch each other with the ideas of criticism. 'Poetry is a criticism of life' is the most important dictum of Arnold's. Poetry can interpret and evaluate human life. He predicted that poetry would superseds religion as something to console us, to sustain, to form of life and eventually supply a spiritual refreshment. In an age of religious uncertainty, he offered culture and especially poetry, as a source of the total perfection of humanity. Thus be thought poetry and criticism make 'the best ideas' prevail and make the society reach the state of harmonious inner perfection and full development of humanity. His literary, social and religious criticism have influenced the 20th century criticism and his message can still serve much as for modern people as to those to solve current social problems analogous of today.

둥시 장아찌 제조 과정 중 이화학적 특성 변화

차원섭,백신경,나경민,박준희,오상룡,이원영,천성숙,최웅규,조영제 한국응용생명화학회 2003 Applied Biological Chemistry (Appl Biol Chem) Vol.46 No.4

떫은감 품종의 하나인 등시를 이용하여 감장아찌 제조 중 과육의 이화학적 변화를 조사한 결과, 염도 변화는 저농도 간장 및 된장 침지의 경우 다소 완만한 증가를 보였고, 고농도의 간장 및 된장 침지의 경우 침지 기간내내 증가하는 것으로 나타났다. 간장 침지액 감장아찌의 경도는 간장 및 된장 모두 20-80% 농도에서는 침지 초기에는 증가하다가 침지 기간이 경과할수록 감소하는 경향을 나타내었다. 간장 침지 감장아찌의 색도 변화는 저장기간이 경과할수록 명도가 낮아지는 경향이었고, 적색도와 황색도는 침지액 농도를 달리하였을 경우 농도가 낮을수록, 침지 기간이 길어질수록 높았으며, 침지액 농도에 따른 차이는 크지 않았다. 침지액의 간장 및 된장의 농도를 달리하였을 때 감장아찌 중의 탄닌함량의 변화는 모든 침지액 농도에서 침지 기간이 지속될수록 탄닌의 함량은 저장 초기에 서서히 감소되다가 침지 기간이 길어질수록 급격히 감소하였으며, 첨가량에 따른 탄닌함량의 변화폭은 크지 않았다. 침지액의 간장 및 된장의 농도를 달리하였을 때 감과육에 존재하는 연화효소인 polygalacturonase와 pectinesterase 활성 변화는 간장침지 및 된장침지 모두 침지 초기부터 효소활성이 증가하기 시작하였으며 침지 기간이 경화할수록 효소활성은 더욱 높아지는 것을 알 수 있었고, 침지액의 농도가 높아질수록 효소활성이 억제되었다. Changes of physicochemical properties during the preparation of persimmon pickles were investigated. The salinity in persimmon pickles increased during storage time (0~50 days) with soy sauce and soy paste. When the fermented soy sauce and soy paste was added to the soaking solution with 80~100%, the salinity increased more rapidly. The hardness of persimmon pickles with soy sauce and soy paste was slightly increased up to the 20 or 30th day of storage and then decreased. L value of persimmon pickles was gradually decreased, but a and b value were slightly increased. The concentration of soluble tannin in persimmon pickles was slightly decreased down to the 20th day of storage and then decreased rapidly. The activities of polygalacturonase and pectinesterase as softening enzyme in persimmon pickles with soy sauce and soy paste increased during storage time (0-50 days) and enzyme activity was inhibited by high concentration of soaking solution.

Gitelman씨 증후군 1예

차영학,송명준,신요식,김성민,김영욱,김윤권,김소연,김영중,조민구,이권전 全南大醫大 2001 전남의대학술지 Vol.37 No.3

강재 슬릿형 댐퍼를 부착한 철근콘크리트조 골조의 거동

신종익,이정한,송한범,강대언,오상훈,차승렬,이용재,김상대,이원호 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

This study investigates the performance of the reinforced concrete frame with the steel plate slit damper. The test was carried out to investigate the structural behavior between the reinforced concrete bare frame and the reinforced concrete frame with the steel plate slit damper. The test results showed that the energy absorption capacity of the damped-frame was several times larger than that of the bare frame. For the damage by the input energy is concentrated on the steel plate slit damper, the ductilities of the former structure were increased and the damaged frame can be reused after exchange the steel plate slit damper.

한국산 채소류의 Angiotensin Ⅰ converting enzyme 저해작용에 관한 연구

배인영,신현경,양차범 漢陽大學校 韓國生活科學硏究所 1999 韓國 生活 科學 硏究 Vol.- No.17

The renin-angiotensin system is one of the most important of humoral vasoconstrictor and vasodilator machanisms involved in blood pressure regulation. The angiotensin I converting enzyme catalyzes the production of the vasoconstrictor angiotensin II as well as the inactivation of the vasodilator bradykinin and of the enkaphalins. Consequently, many researchers have investigated to prepare and isolate the naturally occuring ACE inhibitors. This study was carried out to investigate the inhibitory activity of ACE from 33 kinds of vegetables. The yield and ACE inhibitory activity of these samples were found to be significantly affected by the condition of extraction. ACE inhibitory activity of most samples were higher in water extract in order with broccoli, Small watercress, sedum, leek, parsley, egg plant, green onion, radish root and perllila leaf exhibiting more than 60%. The yield of soluble solids in water extraction were higher in order with pumpkin, garlic, sedum, onion, broccoli, spinach, cucumber, green onion, korean cabbage and leek exhibiting more than 20%. When dried samples were extracted with various solvents, sedum, broccoli and tomato showed higher ACE inhibition in ethanol extract while parsley, leek, Small watercress, persimmon leaf and garlic showed higher ACE inhibition in methanol extract. Hot water extraction at 100℃ for 30min caused a significant decrease in ACE inhibition as compared with cold water extraction. Thus these results suggest that ACE inhibitor of these samples seems to be water soluble component being heat-unstable.

생쥐 위장관의 Interstitial cells of Cajal(ICC)에 대한 면역조직화학적 연구

김영철,차경훈,신무경,임건한,김주영,안병수,김장만,양경철,박도영,오재욱,장인엽 조선대학교 2003 The Medical Journal of Chosun University Vol.28 No.1

Background and Objectives : Interstitial cells of Cajal(ICC) are the pacemakers in gastrointestinal tract that modulates gastrointestinal motiliey and these cells also transmit neural input from enteric nerves to smooth muscles. Recent work on tissues from patients with motility disorders that suggest that loss or defect in ICC could be related to pathophysiology in human and animal models. Immunolabelling of ICC in intestinal wall is recently developed by using specific marker, anti-c-kit antibody. Immunohistochemistry was done for ICC network in attempt to provide a morphological basis for the mechanism regulating gastrointestinal motility Methods : Cryosection was done, and whole-mount preparations of mouse stomach, gastrointestinal tract were immunolabelled using the anti-c-Kit. Immunolabelled ICC networks were observed under a confocal laser scanning microscopy. Results : According to three dimensional reconstruction study, we found that the c-Kit-positive celluar networks were widely distributed in the gastrointestinal muscle (1) circular muscle layer(IC-IM), (2) myenteric plexus(IC-MY), (3) deep muscular plexus(IC-DMP) in ileum, (4) submucosal plexus(IC-SMP) and longitudinal muscle layer(IC-LM) in colon. Conclusion : The characteristic profiles of ICC celluar networks provide a morphological basis upon the mechanism regulating gastrointestinal motility. Additional studies for the enteric nerves-ICC interaction are need to evaluate the detailed roles of Icc in gastrointestinal tract.

Prednisolone과 Prednisone의 임상약동학적 평가

신재국,윤영란,차인준,이경훈,장인진,신상구,박찬웅 大韓臨床藥理學會 1994 臨床藥理學會誌 Vol.2 No.1

알코올 금단 발작 환자에서 진전 섬망 예방에 대한 Nimodipine과 Chlordiazepoxide의 효과 비교

정두신,양광익,이보람,방차옥,이태경,성기범,안무영,박형국 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Background & objectives : An increase of calcium influx during alcohol withdrawal state may contribute to neuronal hyperexitability, which cause delirium tremens(DT). Some investigators have found calcium channel blockers effects in prevention of DT in experimental animals. Therefore we evaluated the preventive effects of calcium channel blocker(nimodipine) and benzodiazepine(chlordiazepoxide) on the development of DT in alcohol withdrawal seizure(AWS) patients. Method : A total 59 patients with AWS were divided into three groups according to the management nimodipine-treated, chlordiazepoxide-treated, and control(no specific medication) groups. We compared the incidence rates of DT in the three groups. Results : Total incidence rate of DT was 30.5%(18 of 59 patients). There were 6 DTs of 18 patients(33.5%) in nimodipine-treated group, 4 of 21 patients(22.5%) in chlordiazpoxide-treated group, and 8 of 20 patients(44.0%) in control. Conclusion : The control group(44.0%) showed the highest incidence rate of DT. And nimodipine-treated(33.5%) and chlordiazepoxide-treated group(22.5%) were followed. However, this result failed to demonstrated statistically significant differences due to small numbers size.