정전위 SSRT법에 의한 해양구조물용 Cu함유 고장력저합금강의 수소취성한계전위 규명에 관한 연구

김성종,박태원,심인옥,김종호,김영식,문경만 한국해양대학교 해양과학기술연구소 2001 硏究論文集 Vol.10 No.1

A marine structural material was well known to have high tensile strength, good weldability and proper corrosion resistance . Cu-containing high strength low alloy (HSLA) steel was recently developed for their purposes mentioned above, And the steel is free about preheating for welding, therefore it is reported that shipbuilding cost by using it can be saved more or less. However the marine structural materials like Cu-containing HSLA steel are being generally adopted with cathodic protection method in severe corrosive environment like natural sea water but the high strength steel may give rise to Hydrogen Embrittlement due to over protection at high cathodic current density for cathodic protection. In this study, Cu-containing HSLA steel using well for marine atructure was investigated about the susceptibility of Hydrogen Embrittlement as functions of tensile strength, strain ratio, fracture time, and fracture mode, etc. and an optimum cathodic protection potential by slow strain rate test(SSRT) method as well as corrosion properties in natural sea water. And its corrosion resistance was superior to SS400 steel , but Hydrogen Embrittlement susceptibility of Cu-containing HSLA steel was hider than that of SS400 steel. However Hydrogen Embrittlement of its steel by SSRT method was showed with pheonomena such as decreasing of fracture time. strain ratio and fracture mode of QC (quasi-cleavage) Eventually it is suggested that an optimum cathodic protection potential not presenting Hydrogen Embrittlement of Cu-containing of HSLA steel by SSRT method was from-770mV(SCE) to - 900mV(SCE) under natural sea water. (Received September 21, 2000)

대학 운동클럽(Club)학생들의 체형. 신체구성에 관한 연구

한기문,박승옥 광운대학교 기초과학연구소 1997 기초과학연구소논문집 Vol.26 No.-

The purpose of this study is to find the somatotype and body composition of the students in sports clubs in our school, and the subjects of study are 169 students in all including 68 students in sports clubs(16 in table tennis club, 12 in tennis club, 14 in basketball club, 12 in keumdo club), 53 non-sports club students and 48 common students. The result of data analysis is as follows. 1. Somatotype The mean somatotype of the group in table tennis club is found to be endomorphic mesomorph of 3.59-4.51-3.10, that of the group in tennis club ectomorphic mesomorph of 2.97-4.67-3.18, that of the group in basketball club endomorphic mesomorph of 3.88-4.62-2.77, that of the group in baseball club endomorphic mesomorph of 4.13-4.81-2.12, and that of the group in keumdo club ectomorphic mesomorph of 2.98-4.35-3.20. The mean somatotype of all the group is found to be endomorphic mesomorph of 3.37-4.37-1.26. 2. Absolute Fat 1) % Fat The average of the group in table tennis club showed 18.97%, that of the group in tennis club 16.11%, that of the group in basketball club 19.83%, that of the group in baseball club 21.41%, that of the group in keumdo club 15.51%. 2) Absolute Fat The average of the group in table tennis club showed 12.51kg, that of the group in tennis club 10.02kg, that of the group in basketball club 13.83%, that of the group in baseball club 14.85kg, that of the group in keumdo club 9.98kg. 3. The comparison of the group in sports club with the group in non-sports club. The comparison of the two groups in somatotype showed that the group in sports club is much higher(p〈0.05) than the group in non-sports club in mesomorphic components. The comparison of absolute fat showed that the group in sports club is much more than the group in non-sports club only in lean body mass, and didn't show any striking difference in other components.

표피 성장인자의 국소적용이 인체 표피화에 미치는 효과에 대한 연구

김현옥,유성종,정승문,김성수 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.3

An understanding of the mechanism of healing has increased dramatically during the past decade. The phenomenon of epithelization is important in the normal resurfacing of a donor site or a partial thickness burn wound. This study was conducted to clarify the effect of epidermal growth factor in wound healing of human. Paired donor sites were created in 18 patients who required skin grafting for either burns or reconstructive surgery. One donor site from each patient was treated topically with silver sulfadiazine cream, and the other was treated with silver sulfadiazine cream containing epidermal growth factor(10ug/ml) (Human recombinant epidermal growth factor ; Sigma, St.Louis, Mo). The donor sites were photographed daily, and healing was measured with the use of planimetric anlysis. The donor sites treated with silver sulfadiazine containing epidermal growth factor had an accelerated rate in all 18 patients as compared with that in the paired donor sited treated with silver sulfadiazine alone. Combining data from all patients demonstrated reduced the average time to 100% healing by approximately 2 to 3 days (p<0.01). Light and electron microscopical study of biopsy specimens taken from the centers of donor sites three days after the onset of healing supported these results. In conclusion, epidermal growth factor accelerates the rate of healing of partial thickness skin wound.

학교체육 활성화 방안에 대한 연구(Ⅰ) : 강원대학교 교양체육 운영방법의 개선을 중심으로

이광재,문병용,노성규,박기동,홍관이,한상준,유옥재,엄기진,정청자,오수일,김윤래,박장평,부기원 江原大學校附設 體育科學硏究所 1986 江原大學校附設體育科學硏究所論文集 Vol.- No.11

Try to find a scheme for activation to College Physical Education, this Report informs the various kinds of Survey and process those were projected for improvement of management methods on Cultural Physical Education in Kang Weon National University. From experimentally carried out "Sports events Choosing System" not as usual be inforced "Total practical Skill System", Following Positive effects and sujestions were Presented; 1. "Sports events choosing system" gave birth to more students' interesting and more voluntary participation to the sports events they chose, and sports skill and instruction level was elevated due to charge of expert according to each sports events. This system would be managed continuously hereafter for it related to life sports. 2. This System needs to closed cooperations between College and Community, for the facilities of community are utilized by college. 3. To complete the plan for activation of college Physical Education, additionally, the successional study ; namely "autonomous extracurricular sports activity" should be excuted hereafter.

인체대장암에서의 Cyclin 유전자의 발현

백원기,서민호,서성일,문성희,박종욱,최병길,배옥석 대한대장항문학회 1996 Annals of Coloproctolgy Vol.12 No.2

기관골 신생증 1예

오영상,이은우,정종혁,문승원,김수현,김동한,양혁승,박정환,박경옥,강성수,이영직 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Tracheobronchopathia osteoplastica is a rare disorder of unknown cause characterized by the projection of numerous bony or cartilaginous submucosal nodules into the tracheobronchial lumen with sparing of the posterior membranous portion of tracheobronchial tree. In the past, most of the cases were diagnosed as secondary finding at autopsy. Nowaday, the key component of the evaluation is flexible fiberoptic laryngoscopy and bronchoscopy, which typically demonstrates irregular spicules of subrnucosal bone and cartilage projecting into the tracheobronchial lumen and causing various degrees of airway obstruction. A 45 years old man was visited Sunchon St. Carollo hospital due to discomfort on throat. We saw several nodules just below vocal cord via laryngoscope. The computed tomography revealed multiple small calcified nqdules on trachea and both main bronchi. Pathologic finding of bronchoscopic biopsy showed abnormal proliferation of bony and cartilagious nodules in the tracheal submucosa. These fingdings were consistent with tracheobronchopathia osteoplastica. We report here on a case of tracheobronchopathia osteoplastica with review of literature.

CASE REPORT : A Case of Ulcerative Colitis Patient with Colonic Stenosis and Enterocutaneous Fistula

( Seong Yeon Jeong ),( You Sun Kim ),( Kyeong Sam Ok ),( Sun Ok Kwon ),( Jin Nam Kim ),( Jeong Seop Moon ),( Yun Kyung Kang ),( Seong Woo Hong ) 대한장연구학회 2012 Intestinal Research Vol.10 No.4

Ulcerative colitis (UC) is one of the chronic inflammatory bowel diseases (IBD), characterized by a diffuse mucosal inflammation limited to the colon. Complications of UC include stricture, colorectal cancer, and toxic colitis. UC patients rarely present with a stenosis or fistula, and strictures develop in less than 5% of patients with UC. We present a patient with UC, accompanied by unusual complications that involved not only a stricture but also a fistula and abscess. A 49-year-old female was presented with a left flank pain and fever that had begun two weeks before admission. She had received a diagnosis of UC 20 years ago and had it treated for 2 years in a local hospital. However, she arbitrarily stopped visiting the hospital and relied on home remedies. An abdominopelvic CT scan revealed luminal narrowing and extra-peritoneal fistula formation in the descending colon. Fistula was connected with a subcutaneous abscess in the left flank. She had undergone total colectomy and ileo-anal anastomosis. On the pathologic exam, the long standing UC with severe stenosis was observed without malignant change. It cannot be emphasized enough that a correct therapeutic approach and an appropriate follow-up schedule are very important for patients with UC. (Intest Res 2012;10:388-391)

일반유치원 통합학급 담당교사의 개별화교육프로그램과 가족참여에 대한 인식

문성옥 ( Seong Ok Moon ),권현수 ( Hyun Soo Kwon ) 한국특수교육문제연구소 2011 특수교육저널 : 이론과 실천 Vol.12 No.3

일반유치원에서 통합교육을 받는 장애유아의 수가 증가함에 따라 통합학급 담당교사에 의한 특수교육 서비스 제공의 기회가 늘어나고 있다. 따라서 본 연구에서는 일반유치원 통합학급 담당교사의 개별화교육프로그램과 가족참여에 대한 인식을 확인하고 통합유치원의 특수교육 서비스 질을 개선하기위한 방안을 모색해보고자 하였다. 연구 결과 통합학급 담당교사는 개별화교육프로그램 운영 실태에 대해 잘 모르고 있었고 특수교육 서비스 과정에서의 가족참여에 대해서도 유치원 설립형태나 특수교사의 지원이 있는가 여부에 따라 인식에 차이를 보였다. 이러한 결과를 토대로 장애유아의 의무교육 시행이 성공적인 성과를 거두기위해서는 사립유치원에 대한 정책적, 재정적 지원이 보장되고 장애유아가 있는 일반유치원에 대해 특수교사 배치를 의무화 할 필요가 있음을 제안하면서 더불어 일반교사와 가족을 위한 교육기회를 확대하고 실질적인 참여를 촉진시키기 위한 방안을 마련해야한다고 주장하였다. Because the number of students with disabilities who have been included in general education classrooms are increased, there are enormous needs for general education teachers’ knowledge and skills about special education. In this paper, the researcher studied about general education teachers’ perceptions about IEP and family participations in inclusive kindergarten. As a result, the researcher reported that general education teachers did not know well about IEP and showed perceptional differences depend on variables such as educational level, organization status as well as availability of special education teachers’ support. Therefore, the researcher suggested several ways to improve the quality of special education in inclusive environments: (1) there should be more systematic supports for private schools, (2) special education teachers should be placed in every inclusive school, (3) it is necessary to provide various educational opportunities for teachers as well as families, and (4) many practical ways to encourage participation of teachers and families in special education should be developed.

Clinical Implication of Hepatogenous Diabetes in Liver Cirrhosis

( Seong Hee Kang ),( Min Sun Park ),( Yoon Ok Jang ),( Soon Koo Baik ),( Moon Young Kim ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

Aims: Disorders of glucose metabolism, namely glucose intolerance and hepatogenous diabetes (HD), are frequent in cirrrhosis. HD and impaired glucose tolerance (IGT) usually present with normal fasting plasma glucose (FPG) and HbA1c level, thus, can be diagnosed by only performing an oral glucose tolerance test (OGTT). Therefore, HD and IGT has not been received enough attention and underestimated when FPG levels are taken into account. We aim to determine if an abnormal glucose tolerance has influence on prognosis of patients with cirrhosis. Methods: This prospective observational study included 719 patients with cirrhosis, either compensated or decompensated, who underwent a 75-g OGTT. All patients were divided into 3 groups: group I - patients with normal glucose tolerance (NGT), group II - patients with IGT (140mg/dL ≤ OGTT < 200mg/dL), group III - patients with newly diagnosed HD (200mg/dL ≤ OGTT). Results: Among 719 patients, NGT was diagnosed in 144 (20.0 %), IGT in 222 (30.9%) and HD in 353 (49.1 %). During median follow-up period of 42.0 months (interquartile range, 21.0-66.0 months), the cumulative survival rates of patients with NGT were 18.1%; IGT, 23.9%; HD, 32.0%. In total patients, HD (adjusted hazard ratio (aHR) =1.712, 95% CI=1.112-2.636, P=0.015) was independent predictor of mortality after adjustment for Child-Pugh score and MELD scores. And IGT (aHR=2.226, P=0.028) and HD (aHR=2.582, P=0.006) were associated with variceal bleeding. However, risk of other complication including hepatic encephalopathy, spontaneous bacterial peritonitis and hepatorenal syndrome were not significantly different between three groups. In patients with compensated cirrhosis (n=179, 24.9%), those with IGT (aHR=4.023, P=0.040) and HD (aHR=4.028, P=0.030) showed a worse survival rate than NGT. In contrast, in patients with decompensated cirrhosis (n=540, 75.1%), neither IGT nor HD conferred higher risk for mortality. Conclusions: Abnormal glucose tolerance including IGT and HD is associated with unfavorable prognosis in patients with cirrhosis, particularly in compensated state.

Impact of Sarcopenia in Patients with Cirrhosis: A Systematic Review and Meta-Analysis

( Seong Hee Kang ),( Gaeun Kim ),( Min Sun Park ),( Yoon Ok Jang ),( Moon Young Kim ),( Soon Koo Baik ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

Aims: Skeletal muscle wasting, sarcopenia, which is a common syndrome in chronic diseases such as liver cirrhosis, is a key feature of frailty. The association between sarcopenia and outcomes, such as complications and survival has recently been described in various patient groups. However, study results remain inconclusive. Therefore, the aim of this study was to systematically review the impact of sarcopenia on outcome in patients with cirrhosis. Methods: We conducted a systematic review (SR) and meta-analysis (MA) on the impact of sarcopenia on outcome in liver cirrhosis were performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Results: Of the 322 studies identified, 20 were eligible according to our inclusion criteria. Most of the studies used CT to diagnose sarcopenia. Two studies used bioelectrical impedance analysis, 10 studies used skeletal muscle index and 8 studies used total psoas muscle area. Seven studies included Asian participants and the remaining 13 studies included Western participants. The prevalence rate of sarcopenia among participants was mean 48.1%, and appeared more among men with a rate of 61.6% whereas the rate was 36% for women. With respect to clinical outcomes, patients with sarcopenia had poorer survival rates and an increased risk of complications such as infection compared to those without sarcopenia. According to the analysis of race subgroup, Asians had a HR 2.45 (95% con fidence interval (CI) =1.44-4.16, p=0.001, I² =0%) of mortality whereas Westerners had a HR 1.45 (95% CI=1.002-2.09, p<0.05, I² =70%). Conclusions: Based on this SR and MA, the presence of sarcopenia is related to a poor prognosis and occurrence of cirrhotic complications and could be used for risk assessment. Moreover, Asian participants had higher mortality related to sarcopenia compared to the Western participants.