건치아동의 연조직 측모에 관한 두부방사선계측학적 연구

선예경,손동수,이상훈 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.1

The purpose of this study was to obtain standard measurements of the soft tissue profile of the children who had excellent mixed dentition. Cephalometric roentgenograms of 35 children(17 boys and 18 girls, Hellman dental age ⅢB) among the contestants in 1992 Healthy Dintition Contest in Seoul were studied for the soft tissue profile and following results were obtained; 1.Means and standard deviations of the children were obtained. 2.Maxillary sulcus thickness was thicker in male(p<0.05). 3.Lower lip lingth and lower facial height were longer in male(p<0.01). 4.No significant differences were noted between male and female in the facial convexity,lip protrusion,nose protrusion and inclination measurements(p>0.05). 5.Upper and lower lips were more protrusive and longer,soft tissue chins were thicker,profiles were straighter and sulcuses were more shallow in the Korean Healthy Dintition Contestants than in those of the Caucasian children.

교육대학교 학생 자치활동에 관한 연구

최예종,성기훈,장용규 서울교육대학교 학생생활연구소 2000 學生生活硏究 Vol.26 No.-

본 연구는 교육대학생의 자치활동 실태와 학생 의견을 바탕으로 교육대학에서 지향해야 할 자치활동의 방향을 모색하고, 건전한 학생활동에 대한 지원 및 지도 방안을 제시하는 데 목적이 있다. 본 연구를 위해 수집된 자료는 SPSS WIN 9.0 통계 패키지 프로그램을 사용하여 분석하였다. 학생 자치활동의 실태를 알아보기 위한 주요 통계 분석 기법은 빈도분석이었다. 서울교육대학교 학생들의 자치활동에 대한 의식 및 실태를 분석한 연구 결과, 첫째, 학과 자치활동의 경우, 응답자의 82.9%가 학과 회의나 행사에서의 학생 참여도에 대하여 부정적인 생각을 갖고 있고, 학과 자치활동시 가장 큰 애로사항은 학생들의 관심 부족이라고 생각하는 것으로 나타났다. 또한, 가장 활성화되어야 할 학과 자치활동으로 MT·수학여행·축제 등의 다양한 학과 행사를 꼽고 있었다. 둘째, 총학생회 자치활동의 경우, 총학생회에서 주도하는 집회나 행사에 대한 학생들의 참여도는 매우 낮은 것으로 조사되었으며, 앞으로 활성화되어야 할 총학생회 활동에 대해서는, 축제· 체육대회· 신입생 O.T. 등과 같은 연례적인 대규모의 이벤트성 행사에 많은 관심을 보여 주었다. 일반적으로 학생들은 총학생회의 역할이 주로 학생들의 의견을 대변하는 것으로 인식하고 있었으며, 총학생회와 학교 당국의 관계에 대한 학생들의 인식은 상당히 부정적으로 나타났다. 셋째, 동아리 자치활동의 경우, 상당수의 학생들은 동아리 활동시 적절한 공간이나 예산의 부족 등으로 어려움을 겪는 것으로 나타났다. 응답자들은 대체로(55.1%) 지도교수제의 필요성을 인식하고 있었으나, 동아리 지도교수의 역할 및 참여 정도에 대해서는 다소 아쉬움을 나타내고 있었다. 넷째, 축제 활동의 경우, 상당수의 학생들이 축제 행사에 방관적이거나 소극적으로 참여하는 것으로 조사되었으며, 적극적으로 축제에 참여하는 비율은 25% 정도인 것으로 나타났다. 또한, 공연이나 오락행사 등이 축제 때 보다 활성화되어야 한다고 생각하는 것으로 나타났으며, 축제때 주점 등을 통한 음주 문화를 개선하자는 의견도 있었다. 이상과 같은 연구 결과들을 바탕으로 교육대학교 학생 자치활동의 활성화 방안을 제시하면 다음과 같다. 첫째, 학생 자치활동의 최대 관건인 학생들의 관심을 적극 유도하기 위한 다양한 유인체계를 갖추어야 할 것이다. 둘째, 생산적인 학생 자치활동의 활성화를 위해, 교육대학생의 정체성을 고양하거나 최근 많은 학생들의 관심을 모으고 있는 학생들의 권익 보호와 복지 증진을 도모할 수 있는 독특한 자치활동 프로그램들을 강화해야 할 것이다. 셋째, 학생 자치활동에 대한 교수들의 적극적인 관심과 함께, 학교 당국과 학생 자치기구 간의 관계 개선 노력이 더욱 활발히 전개되어야 할 것이다. The purpose of this study was to investigate students' opinions of their activities in Seoul National University of Education and to suggest some propositions for the development. The data were collected from 321 students, and frequency distribution and percent rate methods have been adopted. The conclusions are as follows: (1) Department students association activities Few students have taken part in the activities. They showed the opinion that membership training, trip for educational purposes, and festival should be strongly activized. (2) General students association activities Fewer students have taken part in the activities. They wanted that athletic meeting and freshman orientation are improved. (3) Circle activities There have been found many difficulties in the activity space and the budget lack. They requested more positive role of the advisor. (4) Performance activities Most students participated passively in the activities. They hoped that more music programs and recreation programs should be developed. In order to develop students' activities, students positive participation, extension of programs, and agreeable relationship between the university authorities and the general student association are needed.

다핵자 전달을 하는 중이온 핵반응 연구

정의헌,김경훈,김병택 성균관대학교 기초과학연구소 1987 論文集 Vol.38 No.2

We apply the massive transfer reaction theory to the heavy-ion reactions which show that the most part of projectile have been transferred to the target nucleus. We show that this theory explains well data measured with the ^14N projectile.

여수국가산업단지 인근 지역 대기오염물질 농도에 영향을 미치는 요인분석

김민영,변정훈,이영훈,이건영,한지은,이예림,임지현,장봉기 순천향대학교 기초과학연구소 2022 순천향자연과학연구 논문집 Vol.28 No.1,2

Eight monitoring stations in the Yeosu National Industrial Complex will determine the concentration of air pollutants measured every hour in 2019, analyze what factors affect them, and how they correlate with the air pollutant measurements. Six air pollutants (SO2, NO2, O3, CO, PM-10 and PM-2.5) measured at eight monitoring stations around Yeosu National Industrial Complex (Seogang-dong, Wolnae-dong, Munsu-dong, Yeocheon-dong, Deokchung-dong, Hwayang-myeon, Yulchon-myeon, Samil-dong) the measurement data for each hour of the year were downloaded to analyze the concentration by weather condition, time zone, season, separation distance from Yeosu Industrial Complex, and separation distance from Gwangyang Industrial Complex. SO2, NO2, and CO concentrations were significantly higher in winter, significantly lower in summer, and O3, PM-10, and PM-2.5 concentrations were significantly higher in spring. SO2, CO, PM-10, and PM-2.5 concentrations were significantly higher between 10 a.m. and 12 p.m., NO2 concentrations were significantly higher between 7 a.m. and 9 a.m., and O3 concentrations were significantly higher between 13 p.m. and 15 p.m.(p<0.001). The concentration of air pollutants (SO2, NO2, CO, PM-10, PM-2.5) excluding O3 was found to have a negative (-) correlation with weather condition, and in the case of O3, it was found to have a positive (+) correlation with PM-10, PM-2.5, temperature and wind speed. It was confirmed that the concentration of air pollutants emitted from the Yeosu National Industrial Complex differs depending on the season, time and distance to the industrial complex. This study aims to establish measures to minimize health damage to residents living relatively close to the industrial complex and contribute to the establishment of management and response measures according to the properties of substances to reduce the concentration of air pollutants in the future.

혈액암환자에서 조혈모세포 이식 후 따르는 헤르페스 바이러스 감영 양상

이호섭,탁희상,신성훈,김양수,남성진,김혜수,박진희,정수현,김성빈,김예나 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.1

배경 : 헤르페스바이러스과에는 단순포진 바이러스(HERPES SIMPLEX VIRUS, HSV), 수두대상포진 바이러스 (VARICELLA-ZOSTER VIRUS, VZV), 엡스타인-바 바이러스 (EPSTEIN-BARR VIRUS, EBV), 그리고 거대세포 바이러스 (CYTOMEGALOVIRUS, CMV) 등이 있다. 헤르페스바이러스 감염은 혈액암환자에서 조혈모세포 이식 환자에서 전파 (dissemination), 이차감염, 세균 중복 감염의 심각한 합병증을 일으킬 수 있다. 하지만 항암약물치료를 받는 림파종 환자에서 항 바이러스 약제의 사용 용량과 기간에 대한 concensus는 없다. 헤르페스바이러스 감염에 대한 발생율과 위험인자를 후향성으로 분석하였다. 방법 : 고신대학교 복음 병원에서 1995년 6월부터 2009 년 2월 사이에 새롭게 진단되어 조혈모세포 이식을 받은 전체 58명의 환자들이 후향적으로 현 연구에 등록했다. 헤르페스 바이러스 감염은 임상적 진단, 혈청학적 검사 또는 병리학적 진단에 기초하여 확진한다. 환자들의 특성은 다음과 같다: 평균 연령은 44세 (범위 19-62세)였고 남녀비는 30:28이었다. 등록된 질환은 백혈병 (n=9, 15.5%), 림프종 (n=30, 51.7%), 다발성 골수종 (n=12, 20.7%), 재생불량성 빈혈 (n=6, 10.3%) 그리고 골수이형성증후군 (n=1, 1.7%)이 포함되었다. 결과는 chi-squre test나 independent samples T test를 사용하여 분석되었다. Multivariate analysises에 대해 logistic regression test를 사용하였다. 결과 : 15명의 환자들 (25.9%)에서 조혈모세포 이식후 헤르페스 바이러스 감염이 발생하였다. 조혈모세포 이식 5년간 누적 발생율은 53.9%였다. Univariate analyses에서 헤르페스 바이러스 감염에 대한 유의한 위험 인자는 없었다. 하지만 조혈모세포 이식후 생존 기간(40.18 ± 30.14 months vs 20.06 ± 26.67 months, p=0.018)은 헤르페스 바이러스 감염의 낮은 발병율과 유의한 관련성이 있었다. 이식 편대 숙주질환 (GVHD)의 존재 (37.5% in developed GVHD vs 0% in no GVHD, p=0.200), 동종조혈 모세포 이식에서 면역억제요법의 기간 (15.98 ± 14.02 months vs 6.78 ± 3.67 months, p = 0.374)은 헤르페스 바이러스 감염에 대한 위험인자가 아니었다. 결론 : 조혈모세포 이식 후 생존 기간은 어사이클로비어 예방을 받은 혈액암 환자에서 헤르페스 바이러스 감염의 낮은 발병율과 연관성이 있는 것으로 보인다. 저용량의 어사이클로비어 예방은 헤르페스 바이러스 감염의 고위험군인 조혈모세포 이식을 받은 혈액암 환자에 필요하리라 생각된다. Background : Herpesviridae family includes herpes simplex virus, varicella zoster virus, Epstein-Barr virus, and cytomegalovirus, etc. Herpesviridae viral infection (HVI) can lead to serious complications including dissemination, secondary infection, bacterial superinfection in patients with hematologic malignancy following hematopoietic stem cell transplantation (HSCT). But there was no consensus on the dose and duration of antiviral agents prophylaxis in patients undergoing chemotherapy. We retrospectively analyzed the incidence and the risk factors for HVI. Method : A total of 58 patients who newly diagnosed and received HSCT with prophylaxis of acyclovir at the Kosin University Gospel Hospital, Busan, Korea between June 1995 and February 2009 were enrolled retrospectively in the current study. HVI was confirmed based on clinical diagnosis, serologic test or pathologic diagnosis. The characteristics of the patients were as follows: the median age was 44 years (range 19-62 years) with a female-to-male ratio of 30:28. The enrolled diseases included leukemia (n=9, 15.5%), lymphoma (n=30, 51.7%), multiple myeloma (n=12, 20.7%), aplastic anemia (n=6, 10.3%) and myelodysplastic syndrome (n=1, 1.7%). The results were analyzed using a chi-square test and independent samples T test. For the multivariate analysis, we used logistic regression test. Results : Fifteen patients (25.9%) developed HVI after HSCT. The cumulative incidence of HVI was 53.8% at 5 years after HSCT. In univariate analysis, there was no significant risk factor for HVI. The presence of graft-versus-host disease (GVHD) (37.5% in developed GVHD vs. 0% in no GVHD, p=0.200), duration of immunosuppressive therapy (IST) in allo-SCT (15.98 ± 14.02 months vs. 6.78 ± 3.67 months, p = 0.374) were not risk factors for HVI. Conclusion : The incidence of HVI was similar to that in historical other studies. There was no risk factor associated with development of HVI. Most of the HVI occurred within the first 24 months after transplantation. So long term use of antiviral prophylaxis may be needed to prevention of HVI after HSCT.

TV의 매체적 속성과 프로그램의 연관성 연구 : TV코미디 프로그램의 공감각적 특성을 중심으로 Focusing on Synesthetic Characteristics of TV Comedy Programs

하효숙,양지윤,홍예진 서강대학교 언론문화연구소 2002 언론문화연구 Vol.18 No.-

대기 중 오염물질의 시료채취시 관측오차 저감방법에 대한 연구 : 6구형 매니폴더를 장착한 MFC system의 개발과 평가 Development and Assessment of a Six-port Manifold MFC System

김기현,오상인,최여진,김민영,최규훈 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.4

In order to develop a confident sampling technique, we designed and constructed a 6-port manifold MFC sampling system for collecting gaseous pollutants in air. Using this instrumentation, we tested the performance criteria of MFC system in terms of: (1) flow rate; (2) MFC-to-MFC variability: (3) tube-to-tube variability: and (4) time. It was interesting to find that the later two factors did not show any significant variations, while the former two show substantially large variations. However, as most of those variabilities are consistent enough to form systematic patterns, we were able to explain the occurrence patterns of all those MFC biases in terms of those tour major variables. The overall results of our experiment suggest that one needs to use correction factor for each MFC unit under a given flow rate to maintain optimal accuracy and precision for sampling of those pollutants.

음성 인식 헬스케어 시스템

신진우,조우승,조성빈,김재훈,정지은,사예지,백경동,박동규 순천향대학교 부설 산업기술연구소 2021 순천향 산업기술연구소논문집 Vol.27 No.2

As modern people's interest in health grows, wearable healthcare-related technologies that can collect biometric information and receive health-related services regardless of time and place are developing. This paper proposes the healthcare system based on voice recognition function. Unlike conventional wearable healthcare systems, the proposed system provides real-time telemedicine and diagnosis and the direct connection with doctors is possible through it. And almost all functions of the application in it are operated with voice commands to lower user access barriers. Because it deals with personal information including medical information, encryption algorithms have been applied between all data movements. Finally, the healthcare system proposed in this paper is expected to increase convenience in health care and reduce the medical gap.

ADI Analysis of Toxicity Report on 141 Bactericides including Anilazine

Ye Ji Bae,Jong Su Byun,Ki Hoon Kim,Min Jeong Lee,Do Hoon Kim,Ji Soo Seo,Seung-Woo Lee,Sung-Hee Choi,Ok-Nam Bae,Jin Seok Kang,Beom Seok Han 한국농약과학회 2021 한국농약과학회 학술발표대회 논문집 Vol.2021 No.11

This study analyzed the Acceptable Daily Intake (ADI) level for the toxicity assessment report on 141 bactericides, including registered in domestic country. NOAEL and ADI of bactericides toxicity study evaluated at domestic and foreign institute, toxicity study type based ADI setting, grade of ADI level, major toxicity and target organ were analyzed. As a result, agencies the most reporting bactericides toxicity data is the Food Safety Commission in Japan (FSC, 36%). Other government agencies are EFSA, EPA, JMPR, INCHEM and other apparatuses in that order. When setting different ADI level to one substance, the cause of the ADI difference among institution was the type of the toxicity test, modification of significant figures and safety factor in that order. As for major toxicity study affecting ADI setting, the chronic toxicity was the highest (25%, 35/141). Other toxicities were chronic/carcinogenicity combined test, repeated dose toxicity test, carcinogenicity test, reproductive and developmental toxicity in that order. As for the classification of ADI grade, a number of ADI range was usually confirmed in the between 0.01 mg/kg bw/day and 0.1 mg/kg bw/day (59%, 83/141). The major target organ affecting ADI setting was the liver (hypertrophy, fatty change, etc.). After that, the kidney (pigmentation, etc.) and thyroid (hypertrophy, etc.) were listed in that order, and other organs were selected as target organs. Therefore, the toxicity report analysis of 141 bactericides will contribute to obtain reliable safety data and evaluate accurate risk assessment of pesticide.

Adaptive Power and Rate Transmission in hybrid DS/FH CDMA Communications over Fading Channels

Ye Hoon Lee,Dong Ho Kim 보안공학연구지원센터 2013 International Journal of Smart Home Vol.7 No.5