복어중독에 의한 가사 상태에서 소생한 1예

송승찬,신진호,강석우,박경남,최호순,박근태,문희식,기춘석,이성희,윤병철,노우균,조균석,이민호 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3

Tetrodotoxin is a neurotoxin produced by about 90 species of puffer fish and causes paralysis of central nervous system and peripheral nerves by blocking the movement of all monovalent cation. Ingestion of tetrodotoxin produces clinical manifestations such as paresthesias(within 10-45 min), vomiting, lightheadedness, salivation, muscle twitching, dysphagia, difficulty in speaking, convulsion and death that expressed by cardiopulmonary arrest with loss of brain stem reflex sometimes. Tetrodotoxin prevents or delays ischemia induced neuronal death by way of following 3 mechanisms. Firstly, it reduces the energy demand of the brain tissues. Secondly, it delays or even prevents anoxic depolarization. Finally, it deminishes ischemia induced cell swelling and cerebral edema. We report a case of puffer fish poisoning which presented with cardiopulmonary arrest and loss of brain stem reflex, but completely recovered by aggressive cardiopulmonary resuscitation.

H형 패치 안테나 설계

최석호,김학선,박종권 한밭대학교 정보통신전문대학원 2003 정보통신전문대학원 논문집 Vol.1 No.1

이 논문은 H형 패치 안테나가 무선통신에 적합하다는 것을 보여준다. H형 패치 안테나는 기존의 사각형 패치 안테나처럼 작은 크기, 적은 제작비용, 고조파 성분에서의 비 공진과 같은 몇 가지 장점을 가진다. H형 패치 안테나의 기본적인 이론과 설계과정 및 시뮬레이션 결과를 소개하였다. In this paper, H-shaped patch antenna suitable for wireless communication is presented. This antenna has several advantages compared to conventional rectangular microstrip patch antennas such as small size, low cost fabrication and absence of harmonic resonance. The fundamental principle, simulated result and design procedure are presented.

족관절 내과골절에서 피질골 나사못을 이용한 변형된 긴장대 고정술

최호림,도현우,김병흠,김규현,박종석,송준민 대한골절학회 2004 대한골절학회지 Vol.17 No.4

목적 : 전위된 족관절 내과골절에 대해 피질골 나사못을 이용한 변형된 긴장대 고정술을 이용한 치료결과를 분석해 보고자 하였다. 대상 및 방법 : 2001년 1월부터 2003년 1월까지 전위된 내과골절에 대해 변형된 긴장대 고정술을 시행 받고 최소 1년 이상 추시관찰 가능 하였던 24례를 대상으로 하였다. 남자 13례, 여자 11례로 평균 연령은 46세였다. 골절은 Lauge-Hansen 분류법을 사용하였으며, 결과는 Meyer와 Kumler의 평가 방법을 이용하였다. 결과 : 13례 (54%)에서 우수의 결과를 얻었고, 9례 (38%)에서 양호의 결과를 얻었으며, 운동범위의 제한이 발생한 1례에서 보통, 후외상성 관절염이 발생한 1례에서 불량의 결과를 얻었다. 결론 : 전위된 족관절 내과골절에서 피질골 나사못을 이용한 변형된 긴장대 고정술은 견고한 내고정과 조기 관절 운동이 가능한 효과적인 수술 방법이 될 수 있을 것으로 사료된다. Purpose : To evaluate the clinical results of modified tension band wire technique using cortical screw for treatment of displaced medial malleolar fractures of the ankle. Materials and Methods : From January 2001 to January 2003, 24 patients were treated by modified tension band wiring using cortical screw for medial malleolar fracture. The follow-up period was 12~35 months (average 18 months). There were 13 males and 11 females, and the mean age was 46 years. Fractures were classified by Lauge-Hansen's classification. The results were analyzed by Meyer and Kumler's criteria. Results : There were 13 cases (54%) of excellent, 9 cases (38%) of good, and one case of fair because of limitation of motion of the ankle joint and one case of poor which showed post-traumatic arthritis of the ankle. Conclusion : Modified tension band wire technique using cortical screw can be an effective operative method for the treatment of displaced medial malleolar fractures of the ankle.

양측성 관상동정맥루 1예

최용원,오석규,이재훈,이상재,권경희,최은경,김남호,정진원 圓光大學校 醫科學硏究所 2002 圓光醫科學 Vol.17 No.1

저자들은 호흡곤란, 흉부불쾌감, 심계항진 등을 주소로 내원한 환자에서 경흉부 및 경식도 심초음파 검사상 주폐동맥에서 이완기에 전행하는 지속적인 혈류의 흐름을 관찰하고, 관상동맥 조영술을 통해 좌전하행지 중간부위와 우관상동맥 근위부에서 각각 기시하여 공통경로를 이루면서 주폐동맥으로 유입되는 양측성 관상동정맥루를 보이는 드문 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. A coronary arteriovenous fistula is infrequently encountered vascular communication between a coronary artery and a cardiac chamber, a great artery or the vena cava. It is the most common congenital anomaly that can affect coronary perfusion. Bilateral involvement of coronary fistula constitutes an uncommon subgroup of coronary arteriovenous fistulas. A 69 year-old female patient presented with chest discomfort, palpitation, and dyspnea. In the echocardiography, doppler color flow imaging visualized abnormal flow signals with mosaic appearance in the main pulmonary artery during diastolic phase. Coronary angiography revealed arteriovenous fistula arising from the left anterior descending artery and the right coronary artery. Both coronary arteriovenous fistulas drained into the main pulmonary artery. We report a case of bilateral coronary arteriovenous fistula that was confirmed by echocariography and coronary angiography.

지문정보를 이용한 안전한 암호키 저장 시스템 개발

최은화,서창호,임종태,김석우 公州大學校 工學硏究院 生産技術硏究所 2003 論文集 Vol.11 No.-

Biometric encryption refers to a process of secure key management. Biometric encryption does not directly provide a mechanism for the encryption/decryption of data, but rather provides a replacement to typical passcode key-protection protocols. Although the process of biometric encryption can be applied to any biometric image, the initial implementation was achieved using fingerprint images.

左金丸이 腸運動 및 胃液分泌에 미치는 影響

崔斗鎬,文九,文錫哉 圓光大學校 韓醫學硏究所 1993 원광한의학 Vol.3 No.1

Effects of Joakeumwhan(左金丸) extract on the gastrointestinal tract were investigated in rabbits and rats. Treatment of Joakeumwhan extract caused an increase of contractile response of the isolated rabbit ileum. Generally the magnitude of increase was related to the dose of Joakeumwhan extract. The contracting effect of Joakeumwhan extract was not changed by pretreatment of Atropine. The contracting effect of Joakeumwhan extract was inhibited by pretreatment of Pheniramin maleate. The contracting effect of Joakeumwhan extract was inhibited by pretreatment of Cyproheptadine. The contractile response of the isolated lieum was reduced by retreatment of Joakeumwhan extract. The gastric secretion of rat was increased by treatment of Joakeumwhan extract. The gastric acidity of rat was not changed by treatment of Joakeumwhan extract.

CPW급전을 이용한 UWB 안테나 설계

최석호,이성훈,김학선,박종권 한밭대학교 정보통신전문대학원 2004 정보통신전문대학원 논문집 Vol.2 No.1

본 논문은 CPW급전 구조와 CST사의 Microwave Studio 사용하여 UWB 안테나를 설계하였다. 시물레이션 결과 제안된 안테나의 대역폭은 3.O5-13GHz를 가지고 방사패턴은 무지향성의 형태를 갖는 것을 보였다. In this paper, we have designed a UWB antenna using CPW feed line and used the Microwave Studio of CST to simulate the UWB antenna. Simulated results show that antenna bandwidth is 3.05-13GHz and radiation pattern is omni-directional.

한의진단명과 진단요건의 표준화 연구 III : 3차년도 연구결과 보고

최선미,양기상,최승훈,박경모,박종현,심범상,김성우,노석선,이인선,정진홍,이진용,김달래,임형호,김윤범,박성식,송태원,김종우,이승기,최윤정,신순식 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1

The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the third year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows : - analyzing and differentiating of epidemic febrile disease - analyzing and differentiating in accordance with the Sasang constitution medicine based on four-type recognition - differentiation of disease according to pathological changes of Chong and Ren channels - standards for diagnosis of women's disease - standards for diagnosis of children's disease - standards for diagnosis of motor and sensor disturbance (-muscle. born, joint, etc.) - standards for diagnosis of neuropsychiatric disease - standards for diagnosis of five sense organ disease - standards for diagnosis of external disease The indivisual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name, notion of diagnosis pattern, index of differentiation of symptoms and signs, the main point of diagnosis, analysis of diagnosis pattern, discrimination of diagnosis pattern, prognosis, a way of curing a disease, prescription, herbs in common use, disease appearing the diagnosis pattern, documents. The standards for diagnosis of each disease was arranged by the diagnostic requirements in the following order : another name, notion of disease, the main point of diagnosis, analyzing and differentiating of disease, analysis of disease, discrimination of disease, prognosis, a way of curing and prescription of disease, disease in western medicine appearing the disease in oriental medicine, documents.

효율적인 일반화 자료처리를 위한 작업공정 개발

최석근,김명호,황창섭 한국지리정보학회 2003 한국지리정보학회지 Vol.6 No.3

본 연구는 대축척 수치지도 ver. 2.0(1/5,000)을 이용하여 소축척 수치지도 ver. 2.0(1/25,000)으로 제작하기 위한 처리공정을 개발하였다. 기존 수치지도와 달리 수치지도 ver. 2.0은 속성정보 및 면처리 등 많은 정보들을 포함하고 있기 때문에 이를 효율적으로 처리하기 위하여 소축척 수치지도의 지형·지물코드에 포함되지 않는 레이어를 삭제하고, 자료처리를 8대 지형·지물별로 분류하여 처리한 후, 자료를 병합하는 과정으로 작업공정을 도출하였다. 따라서 본 연구에서 개발한 작업공정은 향후 최적 자동일반화시스템 개발시 기초자료로 이용할 수 있을 것이고, 소축척 수치지도 및 각종 주제도 제작에 기여할 수 있을 것이다. This paper proposes a work procedure for generalizing large-scale digital maps ver. 2.0(1/5,000) into a small-scale digital map)1/25,000). Unlike a existent digital map, the digital map ver. 2.0 has a variety of attribute data as well as graphic data. To perform an efficient map generalization with these structural properties, we establish a work procedure as follow; firstly, delete layers which don's exist in small-scale digital map's feature code, and secondly, generalize features which have been classified into 8 layers, and finally merge 8 layers which have been generalized into 1 layer. Therefore, we expect that a work procedure which is proposed in this paper will play a fundamental role in automated generalization system and will contribute to small-scale digital mapping and thematic mapping.

경사각에 따른 자리 진동 히트파이프의 열전달특성에 관한 연구

최재혁,윤두호,윤석훈 한국해양대학교 산업기술연구소 2002 연구논문집 Vol.19 No.-

In this paper, heat transfer characteristics of a self-oscillating heat pipe were experimentally investigated for the effect of inclination angle and heat loads. This type of heat pipe consists of a heating section, a cooling section and an adiabatic section. The heat pipe used has a 0.002m internal diameter, a 0.34m length in one turn and consists of 19 turns. Each of the heating and cooling section has a length of 70mm. Experiments were performed to measure the temperature distributions and the pressure variation of the heat pipe according to inclination angle. Based on the experimental results, the heat transfer ability of the self-oscillating heat pipe seems to improved with the increase of the inclination angle.