원위 전대뇌동맥류의 외과적 치료

성경훈,도종웅,강재규,김기욱 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.6

The authors described a more different type of aneurysms in the distal anterior cerebral artery (DACA), which is difficult to approach surgically. There are anomalies of distal anterior cerebral artery in about one fourth and narrow space, which made more careful surgical dissection. We experienced 7 cases of DACA aneurysm, 6 cases of which were treated surgically through the interhemispheric approach via the unilateral frontal paramedian craniotomy on the non-dominant side. Surgical results were anatomical complexities, modem microsurgical technique aided by microscope make the approach more exactly and safely.

상부요추부수핵탈출증에 관하여

성경훈,김상진,박순필,도종웅 최신의학사 1988 最新醫學 Vol.31 No.2

Failure Diagnosis Method of Photovoltaic Generator Using Support Vector Machine

Kyeong‑Hee Cho,Hyung‑Chul Jo,Eung‑sang Kim,Hyang‑A. Park,박준호 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.4

The capacity of photovoltaic (PV) generators can increase owing to the 4030 policy of the Government of South Korea.. In addition, there has been signifcant interest in developing a technology for the maintenance of PV generators owing to an increase in the number of outdated PV generators. This paper describes a failure diagnosis method that uses operational data for power generation and solar radiation of PV generators. The measured data stored since four years in an operational 50-kW PV generator that was installed in 2014, were analyzed. The proposed failure diagnosis logic uses support vector machine classifcation as a failure diagnosis method that can classify normal and failure data. The failure data were processed to be used as the fault diagnosis logic for solar power generators. A new 50-kW PV generator, which contained no fault data, was used for a case study in this paper. Fault data were generated and the operation data of the PV generators were diagnosed by applying the proposed method. In addition, the accuracy was calculated and the results were analyzed.

담도에 국한되어 증상을 유발한 석회쓸개즙 2 예

윤성우,이지영,하경호,이수경,한나,배효근,박선자 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.2

Limy bile is a rare condition characterized by excessive precipitation of calcium carbonate in the gallbladder or bile duct. Recently we experienced two cases with obstructive jaundice in which limy bile in the common bile duct but not in the gallbladder for one case, and in the common bile duct and intra hepatic duct but not in the gallbladder for another case. The patients were treated by endoscopic sphincterotomy. Here, we report the cases and review the literature.

골절 및 탈구 없는 경추손상의 치료

성경훈,김상진,강재규,도종웅 대한신경외과학회 1989 Journal of Korean neurosurgical society Vol.18 No.7-12

The authors analized the 98 cases of cervical spine injuries without fracture or dislocation by hyperflexion/hyperextension of the neck. The peak incidence of the age was in the second to fourth decades(69.4%). There was a male preponderance with a sex ratio of 1.8:1. Sources of trauma were motor vehicle accident, object falling on and motorcycle accident in the order of frequency. The common mechanisms of injury were flexion-extension, extension and flexion injury in the order of frequency. There were 10 cases of cervical cord injury without fracture or dislocation and operative management was given in 6 cases of them. The most common preexisting desease was congenital cervical stenosis. Surgical modality such as laminectomy, laminoplasty and anterior decompressive procedure made them improved. The authors discuss the mechanism of injury and surgical management of the patients with cervical cord injury in the abscence of concomittent fracture or dislocation.

고등학교 야구선수들의 경쟁상태불안에 관한 연구

김상규,김성문,김경석,권판근 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.3

The Purpose of this study is to investigate the surbordinate elements of the competition state anxiety-cognitive state anxiety, somatic state anxiety, and state self-confidence- before the game according to their grades, positions and rols, and to present some useful guiding principles of effective coaching and the basic data of conduct guide to improve the performance ability and control competition anxiety of high school baseball players. A total of 410 high school baseball player who participated in the 57th Chungryonggi National High School Baseball Tournament(2002. 5. 1-5. 8) took part in the CSAI-Ⅱ. The collected data were analyzed with descriptive statistics and one-way ANOVA. Result were as followings: First, in the analysis of the competition state anxiety according to the grade, there isn't any significant difference in the somatic state anxiety statistically. However, there are significant difference in the cognitive state anxiety and state self-confidence statistically (p<.05). Second, in the analysis of the competition state anxiety according to the position, there isn't any significant difference in the cognitive state anxiety and state self-confidence statistically(p<.05). Third, in the analysis of the competition state anxiety according to the game performance ability, there isn't any significant difference in the cognitive state anxiety and somatic state anxiety statistically. However, there are significant difference in the state self-confidence statistically(p<.001). Forth, in the analysis of the competition state anxiety according to the roles, there isn't any significant difference in the cognitive state anxiety, somatic state anxiety, and state self-confidence statistically.

가로변 건물 외장 재료의 구성과 이미지에 관한 연구 : 전주시를 중심으로

한상수,남해경,박한규 대한건축학회 2004 대한건축학회논문집 Vol.20 No.12

This study aims to find out the composition of the architectural materials for the exterior design of the urban buildings and their facade Image. To carry out this study, the field survey for the buildings of the 5 main streets in Chonju area was done And each one of the exterior building materials of the selected 15 buildings were investigated by a specialist group and non-specialist group They were analyzed as their built age, function, story and materials and their image It is concluded as followings 1 The tiles are mostly used as the building facade materials 2 As the built age, the tiles are chiefly used in the buildings that were built from 1970 to 1980, the granite and glass are more widely used in the recent buildings 3 As the function, the tiles are largely used in the kinds of daily life buildings and hospital buildings, and the glasses are in the office buildings 4 As the building story, the tiles are generally used In the lower story buildings, however in the middle story buildings granite and glasses are generally used. And in the higher story buildings, the glass is mostly used The compositional proportion of the buildings, as its used materials, are 70%, 23% and 7% respectively It is shown that the image of cool and modernness is taken with the buildings of glass, steel, timber and aluminum made And the buildings of red brick, tile, dry-bite and concrete have their own Images of warm together with the images of physical properties In the process of architectural design, the design of its exterior materials will be applied as its physical properties and images

다이폴 안테나를 이용한 이동체 경로 추정 방식

이성필,윤여경,김종수 慶南大學校 附設 工業技術硏究所 1997 硏究論文集 Vol.15 No.1

위상각 차에 의한 이동방향 및 거리를 구할 수 있는 모델을 제시하고, 다이폴 안테나 어레이와 방탐 처리회로를 이용한 방향탐지 시스템을 설계하였다. 컴퓨터 시뮬레이션 결과 높은 이득과 대칭성이 나타났으며, 360 MHz에서 우수한 필터링 특성을 나타내었다. We suggested a new model which can be obtained moving directions using tangential function by phase difference of arrayed poles, which can be calculated the displacement by measured initial and final direction angles. A detecting system for moving object has been designed by dipole antenna array and driving circuits. The designed system showed high gain and good symmetric and filtering characteristics in 360 MHz through computer simulation.

Raphanus sativus Var. Chungpihongsim의 hairy root 배양에 의한 anthocyanin 생성

황성진,백윤웅,고경민,안준철,황백 全南大學校 農漁村開發硏究所 1991 農業科學技術硏究 Vol.26 No.-

청피홍심무우를 재료로 A. rhizogenes A₄균주를 접종하여 hairy root를 유도하였으며 유도된 hairy root는 paper electrophoresis를 통하여 mannopine과 agropine이 검출되어 형질전환 되었음을 확인하였다. Hairy root는 MS의 기본염을 1/2로 희석시킨 1/2 MS, sucrose 3%, pH 5.2로 조성된 배지에서 최적인 성장을 보였다. 유도된 hairy root는 각 strain사이에 색소능에 다소간의 차이를 보였으며 2, 4-D kinetin의 적절한 조합의 처리구에서는 탈분화와 더불어 색소가 형성되었고, 그 중 2, 4-D와 kinetin을 각각 1 ppm, 5 ppm 처리하였을 때 최대 색소능을 보였다. hairy root의 탈분화시 형성되는 색소는 원 식물 뿌리의 주 색소인 pelargonidin 계열의 색소로 추정되며 총 색소량은 49mg/100g(F.W.)로 잠정 계산되었다. Hairy root induced following inoculation of the root disc and plantlet fragment of R. sativus Var Chungpihongsim with A. rhizogenes A₄. The hairy root contained agropine and mannopine. Medium contained 1/2 MS salt, sucrose 3%, pH 5.2 was optimized to growth of hairy root. Depending on the hairy root line, the level of pigment in hairy root varied somewhat . When 2, 4-D and kinetin were added in hairy root, the synthesis of pigment induced with deorganization of hairy root. Especially, addition of 2, 4-D 1 ppm and kinetin 5 ppm showed the maximum synthesis of pigment. Compared with anthocyanin extract of mature root three pigments were assumed to acylated pelargonin. The content of anthocyanin in these sample was 49mg/100(F.W.).

간에서 보이는 직선연 징후의 CT 소견

박성태,이현경,김정혜,이성우 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-

목적 : 전산화단층촬영(CT) 에서 조여증강 전, 후에 간 내에서 관찰되는 직선연 징후(straight border sign)의 그 원인에 따른 영상소견을 알아보고자 한다. 대상 및 방법 : 복부 CT에서 간내에서 직선연 징후를 보이는 9례를 후향적으로 분석하였다. 원인 질환은 간전이, 간세포암, 외상성 간손상이 각각 1례와 간농양, 재발성화농성담도염, 그리고 지방간 각각 2례였다. 결과 : 전이암과 간세포암 각각 1례에서는 종양의 문맥침범으로 인하여 그리고 간농양과 재발성화농성담도염 각각 2례에서는 염증이 있는 간엽으로의 스틸현상에 의해 직선연으로 경계되는 간 엽간의 조영증강의 차이가 있었다. 외상성 간손상 1례에서는 간문맥과 동맥의 손상에 의한 쐐기모양의 간경색이 관찰되었으며 2례의 지방간에는 간우엽에 갠틀리선을 경계로 하는 저음영이 관찰되었다. 결론 : CT 영상에서 간내 직선연 징후가 보일 때 음영의 분포 (해부학적 또는 비해부학학적), 감쇠도(고감쇠 또는 저감쇠), 그리고 조영증가 유무와 그 방법에 대한 지식을 모두 고려하여야 할 것으로 생각된다. Purpose : We demonstrate computed tomography (CT) appearances of straight border sign of liver and correlate with its causes. Material and Methods : We retrospectively reviewed nine cases of abdominal CT scan that showed the straight border sign. Underlying disease were liver metastasis (n=1), hepatocellular carcinoma (n=1), traumatic liver injury (n=1), liver abscess (n=2), recurrent pyogenic cholangitis (n=2), and fatty liver (n=2). Results : Attenuation differences of liver bordered by the straight line were depicted in various conditions. These conditions are the followings : portal vein invasion in case of liver metastasis and hepatocelluar carcinoma ; steel phenomenon in case of liver abscess and recurrent pyogenic cholangitis ; and hepatic artery and portal vein injury in case of traumatic liver injury. Lobar fatty liver lesions were also seen in right lobe bordered by straight line. Conclusion : To correctly interpret the straight border sign, we should consider the distribution (anatomic vs nonanatomic), the attenuation (low vs high), and the use and technique of contrast enhancement.