심폐소생술중 심실기능 및 판막운동의 평가

이부수,김영식,이강현,황성오,임경수,박금수,윤정한,안무업,최경훈 대한응급의학회 1994 대한응급의학회지 Vol.5 No.2

Background : Mechanism of blood flow during cardiopulmonary resuscitation(CPR) in humans remains controversial and poorly understood, although cardiac or thoracic pump theory was proposed. We investigated cardiac movement, ventricular function and atrioventricular valve motion with aid of transesophageal echocardiography during precordial compression during CPR in humans. Methods and results : During CPR transesophageal echocardiography was performed in 14 patients with non-traumatic cardiac arrest. Manual precordial compression during CPR was performed according to American Heart Association guidelines. Mitral valve closed in 9 and did not close in 5 patients during "compression systole". Tricuspid valve closed during compression systole. Compression vector directed to right ventricle, basal portion of interventricular septum and left atrium. The heart rotated clockwise and the apex was more displaced than the base("swing motion"). Fractional shortening(FS) and ejection fraction(EF) of right ventricle exceeded those of left ventricle(FS : 55±9% vs 18±8%, p<0.05), EF : 79±9% vs 37±16%, p<0.05). FS and EF of left ventricle was higher in patients with systolic mitral valve closure than patients with persistent systolic opening of mitral valve(FS : 21±7 vs 13±7%, EF : 45±12 vs 22±12%, p<0.05), but FS and EF of right ventricle was not different. Conclusion : During precordial compression, the heart rotated clockwise and displaced. Systolic function of right ventricle exceeded left ventricle. Marked compression of right ventricle and systolic closure of tricuspid valve suggested that right ventricle functioned as a pump generating blood flow during precordial compression. Closure of mitral valve was dependant on systolic function of the left ventricle.

혼수상태의 외상환자에서 초음파를 이용한 흉부 및 복부손상의 진단

임경수,이강현,이진웅,이부수,황성오,유수영,강성준 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

The need for rapid diagnosis and treatment of life-threatening thoracic and intra-abdominal injury result in controversy over the appropriate triage of unconscious blunt trauma patients. To aid in early decisions for these patients, a prospective analysis of 98 patients with glasgow coma scale(GCS) scores≤8 was undertaken. Although intra-thoracic and intra-abdominal injuries were frequently identified based on systolic blood ressure, the use of clinical signs alone resulted in more missed injuries than did using the emergency ultrasonography. In normotensive patients(n=34), intra-thoracic injuries was identified in one patient(2.9%), and intra-abdominal injuries were in 7 patients(20.6%). In shock(systolic blood pressure<90mmHg) Pa-tients(n=64), thoracic injuries and intra-abdominal injuries were diagnosed in 8(12.5%) and 27 patients(42.3%), thoracic and abdominal combined injuries were identified in 11 patients(17.2%). The sensitivity, specificity, and accuracy of emergency ultrasonography were 96.3%, 91.7%, 94.9%. This study suggests that all unconscious trauma patients undergo immediate emergency ultrasonography to prevent missing life-threatening injuries.

심정지환자에서 epinephrine투여시 혈중 catecholamine의 변화

임경수,황성오,이부수,이강현,이진웅,임종천,김영식,김선만,김 현 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

Background : Cardiac arrest is a potent stimulus for the release of endogenous catecholamine and high plasma catecholamine concentration has been reported during cardiopulmonary resuscitation(CPR). Few data were present about the clinical effect of high plasma catecholamine and endogenous catecholamine response to exogenous epinephrine administration during CPR. Purpose : This study was designed to evaluate endogenous catecholamine response to cardiac arrest and exogenously administered epinephrine during CPR. Method : In 21 cardiac arrest victims, blood sample for epinephrine and norepinephrine was drawn before and 1 minute after each epinephrine administration during CPR. 1mg of epinephrine was administered immediately after intravenous access and 3 minute interval during CPR. Plasma catecholamines were quantitated by high-performance liquid chromatography. Result : Baseline plasma epinephrine concentraqtion was higher in patients with cardiac arrest than normal controls (985±1627 vs 194±173 pg/ml, p<0.05). Baseline plasma norepinephrine concentration was also elevated in patients with cardiac arrest than normal controls, although statistically insignificnat(1965±4915 vs 360±250 pg/ml). Plasma epinephrine concentration in cardiac arrest patients was significantly elevated after exogenous administration of epinephrine, but its response was blunted after the third does of epinephrine. Plasma norepinephrine concentration in cardiac arrest patients was also elevated, but its response was observed only after the first epinephrine administration. Plasma epinephrine concentration was persistently higher in patients with return of spontaneous circulation (ROSC) than patients without ROSC. there was no significant difference of plasma norepinephrine concentration whether spontaneous circulation was restored or not. Endogenous epinephrine response to exogenous epinephrine was not observed in patients having prolonged arrest time over 20 minutes. Conclusion : Results of this study suggests that significant amount of catecholamine is released by exogenous epinephrine administration in spite of high plasma catecholamine concentration, and degree of endogenous catecholamine response influences resuscitation outcome.

중소기업의 조직개발과 관리에 관한 통합 모형

박부수,황인표 순천대학교 지역개발연구소 1997 地域開發硏究 Vol.8 No.-

최근 중소기업의 중요성이 재인식되면서 중소기업의 생산성 향상을 위한 조직개발과 관리모형 개발에 대한 논의가 활발하게 전개되고 있다. 그러나 중소기업경영관리에 활용가능한 선행연구 실적이 미진하고 개발된 이론 또는 부족할 뿐만 아니라 중소기업에 대한 개념규정마저도 각국에 따라 상이하다. 더구나 중소제조기업의 생산성 향상을 위한 효율적인 조직개발과 관리모형 개발이 전무한 실정이다. 따라서 이 연구에서는 선행연구 결과를 검토하여 중소제조기업에서 실천적으로 적용 가능한 연구모형을 구축해보고 향후 연구의 방향을 제시해 보았다.

필러의 표면처리와 실리콘 고무의 트래킹특성

李水夫,崔鍾汶,李峻昊,池源泳 湖西大學校工業技術硏究所 1999 工業技術硏究所論文集 Vol.18 No.-

Polymer insulating materials are widely used in power distribution and transmission systems for their good dielectric properties, light weight, low cost, and good contamination performance. Tracking is one of the biggest problems to be overcome in polymer insulating materials. The alumina trihydrate(ATH) is widely used as a filler for improve the tracking performance of silicone rubber. In this paper, we have investigated the influence of surface treatment of fillers on the tracking performance of silicone insulator using the IEC 587 tracking test method.

다중 공진 특성을 갖는 프랙탈 안테나에 관한 연구

강부식,김흥수 제주대학교 공과대학 첨단기술연구소 2003 尖端技術硏究所論文集 Vol.14 No.2

Fractal antenna is an antenna using fractal geometry that involves a recursive generating methodology that results in contours with infinitely intricate fine structures. Fractal geometry has space filling properties and self similar structure. In this paper, the fractal antenna's properties that can be utilized to miniaturize antennas and act in multi band are examined and the fractal antennas with Koch curve are farbricated and the characteristics of fractal antennas are measured.

共同住宅 居住者 特性과 住居環境滿足度의 相關關係에 관한 硏究

金基洙,朴碩鉉,梁富弘,崔生吉,朴義權,孫泰鎭,成基文 충주대 2004 産業科學論文集 Vol.12 No.-

The purpose of this research was to analyze the correlation of the characteristics of dwellers and residential satisfaction in apartment housing. The contents of this research is to identify characteristics of dwellers, which might have an influence on residential satisfaction in apartment housing. In conclusion, the number of a family, the floor level, the size of housing unit and tenure had statistically significant correlations with the residential satisfaction in apartment housing.

쾌적한 캠퍼스 조성을 위한 기본계획 기초적 연구

梁富弘,朴碩鉉,崔生吉,孫泰鎭,金基洙 충주대 2003 産業科學論文集 Vol.11 No.-

In this study, the potential energy and limitation of the facility of Chungju national university are analyzed in the respect of human knowledge, nature, and visual environment. In addition, the effctiveness and problem of the existing master plan are evaluated through the investigation on the main hart and development procedure of the previous master plan of CJU. These results are compared and reflected to the plan of Vision 2003, e-STRR2010 and effective campus development plans of CJU are presented.

韓國企業 賃金管理現況과 그 改善方案에 관한 硏究

朴富穗 順天大學校 1984 論文集 人文社會科學篇 Vol.3 No.-

Wage is the source of income for laborers but is the main items of cost for the enterprise. Laborers, therefore require high level wage but the enterpreneur insists on low level wage. High level wage weakens the ability of international competition, and low level wage causes weakening of productivity and falling short of effective demand and make economy depressed. So, it is more important matter of wage policy that wage level should be formed in view of laborer, enterpreneur and national economy. Because wage functions as cost of living for the laborer and as personnel expenditure for the enterprise, a matter that by what criteria wage level is determined is raised. A small difference in the criteria of wage level management is made by the view of scholar, but in general ①Ability to pay of enterprise, ②Laborer's living cost, and ③Going wage rate are regarded as the criteria of wage management. As traditional wage system is imperfact and irrational distribution system, the requirement of wage rationalization is powerfully arising. The requirement of wage rationalization is that of job wage, functional wage, and wage by productivity. In job wage system is determined by the relative value of jab which is analyzed by job analysis and job evaluation. In Korean enterprises it is not easy to accept this system. Because the poor technique of job analysis and job evaluation makes it difficult to settle relative value of job, and because the deep attachment to wage system by long and meritiorious service in Korea makes serve resistance to the overall acceptance of job wage system. To rationalize wage management each enterprise should adopt follwing policies. (1) Excessive surplus value of education should be excluded and hiring qualification should be lowered. (2) Sexual discrimination in wage should be abolished and the potentail high class woman labor force should be utilized. (3) To raise the ability to pay productivity should be elevated, and to elevate productivity, tangible fixed assets per capital, ratio of gross value added to tangible fixed assets, and ratio of gross value added to total assets should be elevated. (4) To accept job wage system and functional wage system, the management technique of manpower should be mordernized and personnel administration system by ability should be possessed.

최저한세 도입에 따른 수평적 공평성

고부언,고철수 제주대학교 2002 社會發展硏究 Vol.17 No.-