THERMAL AND SMOKE MEASUREMENTS OF VEHICLE FIRES Establishing practical large-scale experiment for vehicle fires

Kim,Jeong-Hun,Kim,Hong,Lee,Bog-Young,Lee,Chang-Seop 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-

Experiments were conducted to evaluate the hazard risks of vehicle fires. Sensors were strategically placed in passenger cars to determine the temperature, propagation rate and direction of flame. The life safety hazard evaluations such as smoke and gas analysis were included. An important ignition position was performed in the engine compartment. The effects of different ignition positions and the opening of door glasses were also reviewed. The experimental results indicate that the maximum temperature when a vehicle burns varies commonly from 90<TEX>$0^{\circ}C$</TEX> -100<TEX>$0^{\circ}C$</TEX>. The flame reaches in the face of a driver about 6-7minutes and the windshield glass breaks about 10 minutes after the ignition in the engine compartment of vehicle. And the smoke and gas concentrations reached the limit of human inhalation after 13-14 minutes. Especially the concentrations of carbon monoxide exceeded the TWA(50 ppm) during short time after ignition in cases of all experiments.

급성 췌장염의 합병이 추정되는 한국형 출혈열 1예

박영수,김창오,김영근,홍성관,장경희,허애정,염준섭,송영구,김준명 대한감염학회 2001 감염 Vol.33 No.5

The Korean hemorrhagic fever (KHF) is an acute febrile disease with characteristic of fever, bleeding tendency, and renal failure. There are many complications of Korean hemorrhagic fever such as infection, anemia, internal bleeding, hypopituitarism, respiratory, and neurologic complication. A few cases were reported on acute pancreatitis with hemorrhagic fever abroad, but there was no case about Korean hemorrhagic fever with acute pancreatitis in this country. We experienced a case of Korean hemorrhagic fever associated with suspected acute pancreatits. With review of articles, we report a case of 51 year-old woman with KHF, where acute pancreatitis developed during management, (Korean J Infect Dis 33:376∼379, 2001)

내시경적 점막절제술로 치험한 식도 과립상 세포종 1례

강혁주,김성욱,최석진,이중현,장재식,서영범,윤병구,박건욱,김성자,김용섭,강승완,이구,양창헌,이창우,김욱년,이광헌,서정일 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-

과립상 세포종은 Schwann 세포 기원으로 생각되며 인체에 비교적 드물게 발생한다. 과립상 세포종은 전신 어느 곳에서나 발견될 수 있으나 주로 혀, 구강, 피부 혹은 유방 등에서 호발하며 드물게 위장관에서 발견된다. 위장관에서는 식도에서 가장 호발하며 다음으로 위, 대장 순이다. 과립상 세포종은 대부분, 특히 위장관에서는 양성이며 소수의 악성 병변이 보고되었다. 이러한 이유와 함께 수술 전의 진단이 어렵기 때문에 과립상 세포종에 대한 근본적인 치료는 현재까지 외과적 절제술이다. 최근에 시도되는 치료방법들로는 내시경적 레이저 치료, 용종절제술, 내시경적 점막 절제술 등이 있다. 저자들은 상부 소화관 내시경검사를 시행하여 식도 과립상 세포종을 진단하고 내시경적 점막 절제술을 시행하여 합병증 없이 퇴원하여 현재 재발없이 경과 관찰중인 1례를 경험하였기에 보고하는 바이다. Granular cell tumors, which occur infrequently, are probably of Schwann cell origin. They can occur almost anywhere in the body but usually affect the tongue, oral cavity, skin, or breasts and are rarely found in the gastrointestinal tracts. The esophagus is the most frequent gastrointestinal site, followed by the stomach and the colon. Granular cell tumors are generally benign, especially in the gastrointestinal tract, some malignant lesions have been reported. For this reason, and also because preoperative diagnosis is difficult, the standard treatment for granular cell tumor has until now been surgical excision. In recent years, other therapeutic methods is endoscopic laser therapy (ELT), polypectiomy, endoscopic mucosal resection (EMR). We report a case of esophageal granular cell tumor which was diagnosed by an endoscopy and managed using an endoscopic mucosal resection without complication.

자기공명영상용 라디오주파수 코일의 제작에 있어서 동조 및 매칭에 영향을 미치는 전기 용량 값들의 실험적 측정

양경승,신용진,김영섭,한재진,이성길,김승국,김영근,지연상 조선대학교 기초과학연구소 2003 自然科學硏究 Vol.26 No.-

Radio frequency coil which is capable of transmit and receive the signal has been used for image production in magnetic resonance imaging(MRI). Tuning and matching characteristic of radio frequency coil is major factor determining the image quality. In experiment the used coil was called a staircase type coil which is simplified the birdcage coil and referred to a simple LC resonant circuit. Because the inductance values of the coils are fixed coil performance was examined by changing of the capacitance values. In this study capacitance values were experimentally determined to increase of-tuning and matching effect in junction of the coil between coil endring and BNC cable to obtain the high quality of image.

소뇌연수열 박리를 이용한 상부 뇌교종양의 절제 : 증례보고 a case report

김영규,민경수,이무섭,김동호,김호재 충북대학교 의과대학 충북대학교 의학연구소 2003 忠北醫大學術誌 Vol.13 No.2

뇌교 및 연수에서 발생한 병변은 뇌간에 중요한 신경구조물들이 밀집하여 수술적 적출에 따르는 심각한 신경학적 장애가 발생할 가능성이 매우 높다. 병변이 제 4뇌실 전방에 위치한 경우는 제 4 뇌실바닥을 통하여 뇌간조직을 절개하여야 하므로, 이 부위의 해부학적인 이해와 수술적 접근방법을 알고있어야 신경학적 손상을 최소화 할 수 있다. 저자들은 상부뇌교에서 발생한 낭성 양성 신경교종을 적출하기 위하여 소뇌충수를 보존하면서 좌측 소뇌연수열 접근법으로 제 4 뇌실바닥 상부까지 노출할 수 있었으며, suprafacial triangle을 절개하여 신경학적 후유증 없이 종양을 성공적으로 절제할 수 있어 증례보고와 함께 제 4 뇌실바닥 노출 방법의 하나인 소뇌연수열 접근법과 제 4 뇌실바닥 수술적 절개와 해부학적 특성에 대한 문헌 고찰을 하였다. Surgical removal of brain stem pathology causes high risks for neurologic deficits because of compact aggregation of important neural structures and complex anatomy. For the removal of pathologies which are located anterior to the floor of fourth ventricle in the brain stem, exposure of variable extents of the floor of fourth ventricle and incision of rhomboid fossa are necessary. In order to minimize postsurgery neurologic sequale for the removal of these pathologies, understanding of anatomy and surgical approach is very important. Authors successfully removed upper pontine benign cystic glioma by trans–medullary fissure approach without vermian incision to exposure floor of fourth ventricle and by incision of suprafacial triangle of rhomboid fossa without causing further neurologic deficit. Surgical technique of transcerebellomedullary approach and surgical anatomy of rhomboid fossa are discussed with report of a surgical case.

부착형 고분자 압전센서를 이용한 탄성파 검출 연구

김기복,윤동진,권재화,이영섭,이승석 한국비파괴검사학회 2003 학술대회 논문집 Vol.- No.1

스마트 구조물에 적합한 탄성과 검출 센서로서 고분자 압전 필름을 이용한 부착형 센서에 대한 연구를 수행하였다. PVDF와 copolymer에 대하여 센서로서의 특성을 평가하였으며 상용화된 PZT 센서와 비교하였다. 탄성과 속도와 음향임피던스가 서로 여러 가지 재료에 고분자 압전필름 센서를 부착하여 연필심 파괴 시 발생하는 탄성파를 검출하여 분석하였다. 센서의 직경이 증가함에 따라 검출 신호의 피크 전압은 증가하였으나 센서의 dynamic range는 감소하는 것으로 나타났다. 시편의 음향임피던스가 감소할수록 검출신호 파형의 피크 값은 증가하였으며 주로 저주파수의 주파수 성분의 신호에 민감한 것으로 분석되었다. Copolymer 센서가 PVDF 센서보다 감도 면에서 다소 양호한 것으로 나타났다.

長距離選手의 體格要因이 記錄에 미치는 影響

金榮駿,李政欣,李昌燮 忠南大學校體育科學硏究所 1986 體育科學硏究誌 Vol.4 No.1

This treatise was intended to analyse the influence of physique factors on long distance records (5.000 meters and 10.000 meters ) in order to help select excellent runners. A total of 87 high school boys of age 17 were subject to analysis. They were divided into three groups: Group A with 22boys, Group B with 30 and Group C with 35. The physique factors were classified as height. weight, chest circumference. length of leg. femur length. femur circumference. crus circumference and foot circumference. 1. The Group B showed excellence in the influence of height and weight on records but yielded no significant relationship. 2. The B Group showed excellence in the influence of chest circumference on records and yielded good records in 10,000 meters race. 3. The Group A yielded excellent results in the influence of length of leg on records. especially on 5.000 meters and 10,000 meters. 4. The foot circumference had a significant influence on records in all the three groups.

연립 주택 화재시 유독가스 방출 특성과 Rats를 이용한 독성평가

김홍,강영구,김동현,정기창,이창섭,김운형 한국화재소방학회 2002 한국화재소방학회논문지 Vol.16 No.3

화재에 의한 독성가스의 노출은 인간에게 있어서 화재시 생명에 아주 위험한 요소일 것이다. 다양한 화재에 의한 독성가스의 노출 중 본 논문에서는 경기도 안산시 재개발지구에서 한 연립주택을 이용하여 실제화재와 같은 조건으로 화재 시험을 하였다. 화재시 발생하는 가스 CO, CO_2, O_2, SO_2, NO 및 NO_2등을 측정하였으며, 발생하는 가스를 실험동물인 백서(S.D)에 노출시켜 2분간격으로 혈액을 체취하였다. 독성평가를 위하여 백서의 혈액과 혈청 중 Glucose, AST(GOT), ALT(GPT), CBC Count 및 CO(carboxy)-Hb를 분석하였다. 폭로되는 CO의 농도와 백서의 혈액중 CO-Hb 농도사이에 양-반응 관계(dose-response relationship)를 보였다. It has long been recognized that exposure to fire-induced toxic gases is a fatal hazard confronting people in fires. In this study, an indoor fire experiment was conducted in an unoccupied residential building located in An-san city, Kyoung-gi province, and the composition of effluent gases, which include CO, CO_2, O_2, SO_2, NO and NO_2, were measured by a gas analyzer A group of lab rats were exposed to the toxic gases released from fire, and the blood samples of the rats were gathered every 2 minutes. A toxicity evaluation was conducted by analyzing the concentrations of Glucose, AST(GOT), ALT(GPT), CBC Count and CO(carboxy)-Hb in the blood samples. Shown from the analysis is the does-response relationship between the CO concentration that rats were exposed to and the CO-Hb concentration in rat blood.

치근단 병소의 임상적 연구

김상우,우순섭,유임학,이영수,심광섭 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.3

The purpose of this study was to find the clinical features of periapical lesions. A total of 130 periapical lesions which were obtained from biopsy and diagnosed histopathologically as periapical cyst, periapical abscess, and periapical granuloma at the Department of Dentistry in Hanyang University Hospital were throughly analysed according to the distribution and incidence of age, sex, location, and so on. The following results were obtained : 1.Out of 130 periapical lesions, 88 cases(67.7%) were periapical cysts, 30 cases(23.1%) were periapical abscesses, and 12 cases(9.2%) were periapical granulomas. 2.The periapical lesions occurred most frequently in the third decade, and followed by the fourth, fifth, sixth, and second decade. The periapical cysts occurred most frequently in the third decade(26.1%), the periapical granulomas in the fourth decade(33.3% ) the periapical abscesses in the sixth decade(26.7%). 3.The periapical lesions were more frequent in men than in women with the ratio of men to women of 1.4 : 1. The radio of men to women of periapical cysts was 1.6 : 1, that of periapical granulomas was 0.5 : 1, and that of periapical abscesses was 1.3 : 1. 4.The periapical lesions were more frequent in maxilla than in mandible with the ratio of 1.2 : 1. The ratio of maxilla to mandible of periapical cysts was 1.5 : 1, that of periapical granulomas was 0.5 : 1, that of periapical abscesses was 1 : 1. 5.The most commonly involved location of the periapical lesions was maxillary anterior teeth(40.8%), and followed by mandibular molars, mandibular premolars, and mandibular anterior teeth and maxillary molars. The most frequent location of the periapical cysts was maxillary anterior teeth(48.9%), that of periapical granulomas was mandibular molars(50.0%), that of periapical abscesses was mandibular molars(40.0%).

堤體 增築 材料의 選定을 위한 浸透 擧動의 實驗的 硏究

金英默,申允燮 大田産業大學校 1998 한밭대학교 논문집 Vol.15 No.1

To study seepage behaviors, a model test is designed and tested for some cases of enlargement of embankment. The materials of enlargement are coarse sand, fine snnd, and weathered residual soil. The aim of this study is to aid and propose some materials for enlargement of old embankment in some rivers and irrigation reserviors. The seepage behavior is unstable at the rapid rise and drawdown water level in uniform sand landfills; that is, coarse snad and fine sand. The enlargement of outward slope using some sands shows stable seepage behavior in the old embankment made of some weathered residual soils, because the outward enlargement of sand seems to serve as filtration. The enlargement of inward slope by some sands shows unstable seepage behavior in the old embankment made of the weathered residual soils. On the other hands, the enlargement of inward slope by some residual soils is stable seepage behavior in the old embankment made of some sand soils. In this case, the old embankment seems to serve as a filter.