임신 종결 후 발생한 자궁 동정맥 누공에서 자궁동맥색전술로 치료한 1예

김종민,이해혁,김태희,남계현,심일구,이권해,김형문,이임순,장종호 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Arteriovenous fistula of uterus is rarely reported disease. This vascular malformation is very dangerous condition because Dilatation & curettage can cause massive uterine bleeding without accurate diagnosis. The diagnosis is made by angiography, gray scale ultrasonography, color and duplex doppler ultrasonography, computed tomography, and magnetic resonance imaging is helpful. Especially color and duplex doppler ultrasonography is allows convincing detection and diagnosis of arteriovenous fistula. Recently transcatheter uterine artery embolization is treatment of choice. We have experienced a case of arteriovenous fistula of uterus. Which is presented with a brief review of literature.

고압 분사노즐의 최적형상에 관한 연구

이종선,김형철 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.2

This study makes to flow analysis of computational fluid dynamics(CFD) according to the basic theory of turbulent flow regarding high-pressure injection nozzle. It also makes structural analysis to find out the structural validity of the optimum shape of high-pressure injection nozzle. It divides to two areas such as plunger area and high-pressure injection nozzle area including plunger.

매복 상악 견치의 맹출 유도에 관한 증례 보고

이종갑,권태희,손홍규,김형태 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.2

Upper cuspid impation is a serious that occurs with sufficient frequency to justify diagnosis and intervention as early as a dental age of 8 years. The maxillary cuspid follows a more difficult and tortuous path of eruption than other tooth. Where upper arch crowding prevents such a tooth from following its normal eruption path, it will diverted either buccally or palatally. The diagnosis of canine impaction is on both clinical and radiographic examinations. When clinician detects early signs of ectopic eruption of canines, an attempt should be made to prevent theier impaction and its potential sequelae. Screening consists of identifying patients who lack a normal cuspid bulge on palpation, with follow-up radiographic evaluation where indicated. Selective removal of deciduous cuspids is a suggested interceptive measure in class Ⅰ uncrowded malocclusions. Each patient with an impacted canine must undergo a comprehensive evaluation of the malocclusion. The clinician should then consider the various treatment options available for the patient. Surgical exposure of the canine and orthodontic treatment to bring the tooth into the line of occlusion is the most desirable approach. After the surgical exposure of the impacted tooth, an auxiliary(button) is attached to the crown. It should be reemphasized that in the surgical exposure of an impacted tooth, only enough bone should be removed to allow for the placement of a bracket and that during the procedure the CEJ should not be intentionally exposed. The removable appliance was designed This applied traction along a desired path of eruption using elastics changed daily Removable appliance seemed to offer more in vertical anchorage than did the fixed appliances. 13 year-old male and 14 year-old female with impacted maxillary canine were treated with surgical exposure and direct traction.

Snorer의 앙와위와 직립위에서의 상도의 크기

이계형,김종철 전남대학교 치과대학 1995 전남치대논문집 Vol.7 No.1

The purpose of this study was to compare and evaluate the upper airway structure between the snorers and asymptomatic control subjects depending on the positional change. Lateral cephalograms in the upright and supine position were taken in 25 female snorers and 20 female asymptomatic control subjects. The length and the area of the soft palate, tongue and airway were measured and evaluated statistically. The results obtained were as follows : 1. The snorers showed longer and higher tongue, narrower and longer airway, inferiorly positioned hyoid bone, longer and broader soft palate and narrower hypopharynx than the control subjects both in the upright and supine position. In addition, the snorers showed broader tongue area and narrower oropharynx area than the control subjects in supine position. 2. Depending on the positional change from upright to supine position, the controls and the snorers showed decreased airway length and superior positioned the hyoid bone. In addition, the snorers showed decreased tongue length and height, airway length and thickness and oropharynx area, but increased tongue area and soft palate area.

정신분열병 환자에서 얼굴 영상의 작동기억 장애 : 기능자기공명영상연구

이창욱,김태석,주라형,박주미,박여진,김종진,전신수,배치운,김정진,이수정,이철,백인호 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.2

Objectives : Impaired processing of facial information is one of the broad ranges of cognitive deficits seen in patients with Schi-zophrenia. We aimed to elucidate the differences in brain activities involved in the process of facial working memory between schizophrenic patients and healthy comparison subjects. Methods : Twelve patients with schizophrenia were recruited along with twelve demographically matched healthy volunteers as a comparison group. Functional magnetic resonance imaging (fMRI) was used to assess cortical activities during the Perfor-mance of a 2-back working memory paradigm using images of neutral faces as mnemonic content. Rcsults : The patient group performed the tasks with reduced accuracy. Group analysis revealed that the left fusiform gyrus, the right superior frontal gyrus, the bilateral middle frontal gyri/insula, the left middle temporal gyrus, the precuneus, the quadrangular lobules and the vermis of cerebellum showed decreased cortical activities in the patient group. On the other hand, an increased level of activation in the lateral prefrontal cortex and the pahetal lobule was observed from the patient group, all in the right hemisphere. Conulusion : A decreased level of activity in the left fusiform gyrus among the patient group implicates inefficient processing of facial information. An increased level of activation in prefrontal and parietal neural networks from the patient group confirms earlier findings on the impaired working memory of patients with schizophrenia.

구호흡을 동반한 증식성 치은염 환자의 치료증례

이종갑,이남형,손흥규,김형태 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.2

Mouth breathing gives direct irritation to gingival tissue and increases gingivitis by increasing debris deposite. Generally, it is reported that gingivitis increases at puberty and it is mainly caused by microbial change and hormonal imbalance. This study included generalized gingivitis accompanying mouth breathing and localized gingival hypertrophy. This 11 years old female patient had no past medical history but she had menarchy a year ago. As a treatment, primarily eliminated the cause of mouth breathing and conducted tooth brushing instruction, scaling, and gingivectomy which resulted good.

CAD/CAM 시스템을 활용한 세라믹 공구 금형제작

이종선,김형철 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-

The object of this study is a manufacture of buff die using CAD/CAM systems. Systems are consist of AutoCAD, CAM software and CNC milling machine. CAM software is purpose of G-code generation for CNC programming. Then CAM software and CNC milling machine are connect to RS-232-C cable for networking.

AMESim를 이용한 유압 굴삭기용 Main Control Valve의 해석에 관한 연구

임태형,최종환,양순용,이병룡,안경관 한국공작기계학회 2003 한국공작기계학회 춘계학술대회논문집 Vol.2003 No.-

The hydraulic excavator has been a popular research object for automation because of its multi-workings and economic efficiency. When it works crane tasks, most of disasters happen. The objective of this paper is to design each components and to construct boom, arm, bucket circuit. These models modeled with AMESim show us change of variables and behavior of excavator. Simulation model will be used for simulator of excavator.

진공증착중합법에 의해 제조된 PMDA / 4,4'-DDE 폴리이미드의 내열 특성

김형권,이은학,우호환,김종석,이덕출 (사단법인)韓國火災 ·消防學會 1996 한국화재소방학회논문지 Vol.10 No.3

The Polyimide thin films based on PMDA and 4,4'-DDE were fabricated by VDPM, and their heat resistance characteristics were invastigated by TGA(Thermogaravimetry Analyzer). It was found that deposition rate decreased with increasing substrate temperature and the thin films were not fabricated over the substrate temperature of 70℃. T_TG of 5% weight loss temperature is 565℃, 397℃ and 210℃ at the substrate temperature of 20℃, 40℃ and 70℃, respectively. It is realized that the endurace temperature for 20,000 hour of thin films fabricated at 20℃ and 40℃ is 230℃ and 200℃, respectively.

차세대 신규 정보통신 서비스

김종일,김진철,조정호,민준식,이형옥 한국정보사회진흥원 2005 정보화정책 Vol.12 No.2

오늘날 정보통신 환경은 디지털 융합(Digital Convergence)으로 대표되는 유?무선 및 음성?데이터 통합, 방송?통신?인터넷이 하나로 융합되어질 전망이다. 이러한 정보통신 환경변화에 따라 VoIP, 인터넷방송, e-Learning, VOD, Multicast, T-Gov, M-Gov, IPv6, 위성 DMB 등 다양한 형태의 차세대 신규 정보통신서비스가 출현하게 되었다. 본 연구에서는 정보통신 환경의 변화에 따라 제공 가능한 차세대 신규 정보통신서비스를 정의하였다. 그리고 정의된 서비스를 무선랜과 무선인터넷, VoIP, DMB, e-Learning, M-Gov, IPv6, 텔레매틱스 등 7개영역으로 구분하여 그에 대한 개념과 해외 차세대 신규 정보통신 서비스의 구축 및 응용 사례를 조사하였다. 또한 해외 사례를 기반으로 국내의 공공부문 즉, 행정 분야, 의료 및 복지 분야, 재난관리 분야, 교통정보 분야에 적용 가능한 새로운 서비스를 제안하였다.