http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
치료용 방사선의 입사각에 따른 광섬유 방사선량계의 체렌코프 빛 측정 및 분석
장경원,조동현,유욱재,신상훈,서정기,이봉수,박병기,문주현 제주대학교 방사선응용과학연구소 2008 방사선응용과학연구소논문집 Vol.22 No.-
In this study, we have measured scintillating light generated in a fiber-optic dosimeter by high energy photon and electron beams using a charge-coupled device. The intensity of Cerenkov lights are also measured and characterized as functions of incident angles and energies of the high energy beams from a clinical linear accelerator. To minimize or remove Cerenkov light, a simple subtraction method using a background optical fiber and wavelength discrimination method using optical filters are investigated. Also, the intensities of Cerenkov light induced by high energy photon and electron beams are compared.
한수경,김정욱,이상훈,김종철,한세현,장기택 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.1
정상적인 하악 성장에서, 하악 제1대구치 후방의 치배는 근심경사되어 있다. 보통 이러한 근심경사는 자발적으로 해소되나, 항상 그런 것만은 아니다. 첫 번째 증례는 14세 여아로서 가족이 모두 하악 제2대구치가 매복된 병력을 가지고 있었다. 환아 역시 양측 모두 매복되어 분절호선과 개방용 코일 스프링으로 치료하였다. 두 번째 증례는 14세 남아 환자로 Halterman 장치를 이용하여 매복된 하악 우측 제2대구치를 치료하였다. 세 번째 증례는 11세 남아로서 고정성 교정 치료 중, 하악 양측 제2대구치가 매복되었다. 분절호선과 개방용 코일 스프링 구리선으로 치료하였다. In the normal growth and development of the mandible, the molar tooth buds distal to the first permanent molar have a mesial inclination. This inclination is usually self-correcting, but, unfortunately this self-correction does not always occur. The first case is about, 14-year old female patient with familial history of lower second molar impaction. Hew lower second molars were both impacted, and she was treated with sectional wires and open-coil springs. The second case, 14-year-old male, we treated his impacted #47 with Halterman appliance. The third case, 11-year-old male, his both mandibular second molars were impacted during full-fixed orthodontic treatment. They were treated with brass wire sectional wire and open coil spring.
광섬유 집합체 센서를 이용한 6MV 광자선의 반음영 및 심부선량백분율 측정
신상훈,장경원,조동현,유욱재,서정기,이봉수,문주현,박병기 제주대학교 방사선응용과학연구소 2008 방사선응용과학연구소논문집 Vol.22 No.-
In this study, a fiber-optic bundle sensor has been developed using water-equivalent organic scintillating fibers for photon beam measurement. Beam penumbra and percent depth doses(PDD) are measured according to the depth of the photon beam. This sensor has many advantages such as high resolution, real-time measurement and ease of calibration over conventional radiation measurement devices.
광섬유 방사선 센서와 EBT 필름을 이용한 심부선량 백분율 측정 및 비교
조동현,장경원,유욱재,신상훈,이봉수,문주현,박병기 제주대학교 방사선응용과학연구소 2008 방사선응용과학연구소논문집 Vol.22 No.-
In this study, fiber-optic sensor is fabricated to measure PDD of CLINAC. As a scintillating light generated by a high energy X-ray from the medical LINAC is measured using photo diode amp system, It is expected that a high-resolution, real-time fiber-optic dosimeter for medical LINAC can be developed.
방사성 페기물 처리장의 지하수 온도 측정을 위한 광섬유 센서의 제작 및 특성 분석
서정기,유욱재,장경원,조동현,신상훈,이봉수 제주대학교 방사선응용과학연구소 2008 방사선응용과학연구소논문집 Vol.22 No.-
Fiber-optic temperature sensing technology can alternative to classical measurement techniques in nuclear environment, Its advantages allow low cost, a long distance measurement and real-time, In this study, we have measured the optical power of power meter and the output voltage of photodiode according to change temperature of water.
아동기 가정 내 스트레스가 공동의존성에 미치는 영향 및 공동의존성과 정신병리와의 관련성
곽운환,손지욱,한규희,박철수,김장락,김붕년,김봉조,강여화,하형래 대한생물치료정신의학회 2003 생물치료정신의학 Vol.9 No.1
연구목적: 본 연구는 공동의존성에 영향을 미치는 아동기 가정내 스트레스 요인과 공동의존성과 다른 병리와의 연관성을 규명하고자 하였다. 더불어 특정한 질환에서의 공동의존성의 평가가 가지는 의의를 탐색해 보고자 하였다. 방 법: 연구 대상은 정상 일반인 남성집단 88명과 알코올리즘 남성 집단 76명으로 구성되어 있다. 평가도구는 본 저자가 직접 작성한 '아동기 가정내 스트레스 요인 측정용 설문'과 공동의존 척도(RPS), 간이증상 진단검사(SCL-90-R)를 사용하였다. 통계적 분석은 Mann-Whitmey test, Kruskall- Wallis test, Multiple linear regression analysis, Spearman correlation analysis를 이용하였다. 결 과: 1) 정상 일반인 군과 알코올리즘 군의 공동의존성 평균값은 각각 49.12점(표준편차=15.41)과 88.31점(표준편차=17.48)이었다. 2) 정상 일반인 군에서는 '아동기 부모 사별'(p<0.01) '부모의 알코올리즘'(p<0.01) '부모의 상습적 구타'(p<0.01)의 3가지 요인에서, 알코올리즘 군에서는 '어린시절 부모 사별'(p<0.01) '부모의 알코올리즘'(p<0.01) '부모의 상습적 구타'(p<0.01) '부도의 도박'(p<0.01) '사회 병질자 부모의 존재'(p<0.05)의 5가지 요인에서 스트레스 유무에 따라 공동의존성에 유의한 차이를 보였다. 3) 두 집단 동시에 SCR-90-R의 8개 소척도 중 '대인관계 예민성'이 공동의존성과 가장 높은 연관성(rs>0.06, p<0.01)을 보였다. 이외에도 '우울증' '불안증'등이 두 집단 모두에서 통계적으로 유의한 연관성을 보였다. 결 론: 본 연구는 부모의 알코올리즘뿐만 아니라 여러 가정 내 스트레스 요인이 공동의존성의 발생에 영향을 미칠 수 있음과 공동의존성이 높은 집단이 다른 정신과 질환을 동반할 가능성이 높음을 증명한다고 할 수 있다. Objectives : The aim of this study was to examine the relationships of codependency with family stressors in childhood and psychopathology. Methods : Subjects were a group of 88 normal adult males and a group of 76 alcoholic males. The degree of codependency was assessed with the Korean version of Recovery Potential Survey(RPS). All subjects filled out questionnaires regarding demographic information and family stressors. The psychopathology was measured by self-administred questionnaires using Symptom Check List-90-Revision(SCL-90-R). Results : 1) There were no significant differences in codependency levels by sociodemographic characteristics in two groups, but obvious difference in mean of codependency scores(normal group : 49.12±15.41, alcoholism group : 88.31±17.48). 2) There were significant differences in codependency levels between the presence and absence of parental physical abuse, parental death, and parental alcoholism(p<0.01) in both groups. 3) Among family stressors, parental physical abuse had the largest contribution to codependency level in multiple linear regression. 4) There were significant correlations between the codependency levels and the scores of SCL-90-R's subscales of interpersonal sensitivity, depression, and anxiety in both groups. Conclusion : The codependency levels were related to some family stressors such as parental physical abuse, parental death, and parental alcoholism and the high-level codependency was correlated with higher level of psychopathology in both normal and alcoholism group. These results suggested that various family stressors, as well as parental alcoholism may be predictors of codependency, and codependency also may be a predictor of other psychiatric disorders.
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.