다발성 외상시 응급 초음파검사의 의의

이강현,임경수,김선만,김영식,황성오,유수영,강성준 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

The Evaluation of blunt abdominal trauma is clinically challenging. Abdominal computed to-mography(CT) and diagnostic peritoneal lavage(DPL) has become primary diagnostic modali-ty in advanced trauma life support(ATLS). But DPL is invasive study with potential for the patients. Monitoring and resuscitation are usually suboptimal during there examinations. We examined the efficacy and role of emergency ultrasonographic(US) studies in the initial abdominal evaluation of blunt trauma patients. A prospective study was carried out on 101 blunt trauma patients from 1994, June to September. 101 patients underwent real-time US ex-amination of the chest and abdomen. Indication for emergency US included the cases of shock (systolic blood pressure<90mmHg) or tachycardia (pulse rate/min.>100) in blunt trauma pa-tients. US showed a sensitivity of 96.2%, specificity 98%, accuracy 97% in regard to indica-tion for surgery in case of blunt abdominal or thoracic trauma. US saves time, and it can be performed during the emergency care in the emergency department. US showes high sensitivity and specificty, and is the method of first choice in the evaluation of blunt trauma.

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.

교정치료와 관련된 치조골 높이 변화에 대한 연구

강경화,이흥수,태기출,김상철 원광대학교 생체재료·매식연구소 1997 원광생체재료·매식 Vol.6 No.2

얇은 도핑조절 a-Si:H초격자에서 지속 광전기 전도도

康聖洙,梁承勳,李原鎭,金英鳳,孔維庠,朴相俊,崔時永 慶北大學校 1990 論文集 Vol.49 No.-

Very large PPC effect(σ_ppc/σ_A=10^5) in doping-modulated npnp a-Si: H superlattices could be obtained. B and P atoms, respectively, diffuse and so some parts compensated. Therefore, annealing activation energy of E_a=0.67eV is larger than one of reference n-type sample of E_a=0.26eV and annealing dark conductivity of σ_A=4×10^-[ohm cm]^-1 is lower than that of n-type reference sample of σ_A=2×10 exp (4)[ohm cm]^-1. From this results, very large PPC relatively have obtained. In this paper, we have observed that PPC effect depends on temperature and exposure time. On the basis of the experimental results, we discuss the existing models.

시스템 소프트웨어 교육을 위한 ASSESS 어셈블러

강성수,김영철 진주산업대학교 1991 論文集 Vol.29 No.-

컴퓨터과학을 전공하는 학생에서 컴퓨터의 기본 동작 구조에 대한 이해와 실험을 가능하게 하는 것은 중요한 의미를 가진다. 이를 위해 간단한 가상 모의시스템인 ASSESS를 구현하였다. 본 고에서는 ASSESS의 구조를 내부 구성요소와 그들 사이의 자료 흐름을 살펴본 후, 구현된 어셈블러의 실험환경, 운영 및 형식과 목표 구조의 측면에서 서술하였다. ASSESS 어셈블러는 컴퓨터시스템 개론 과목의 실험환경의 확장을 도모함과 동시에, 시스템 프로그래밍 개론 과목과 어셈블러 교육을 위한 기본 모형으로 활용되어 질 수 있다. 그리고, 부과적으로 XENIX환경을 직접 호출하는 shell기능을 추가하였다. ASSESS는 시스템 소프트웨어 교육의 초보 단계의 이해를 위해 구성되었다. 따라서 실제 컴퓨터 구조에 가까운 구조의 이해를 효과적으로 제공하기 위해, 다음의 확장을 위한 방법이 앞으로의 연구 과제이다. 1) BOE console의 그래픽 환경 2) 다양한 주소지정 방식 3) 구조적 프로그래밍을 위해 부프로그램을 위한 구조 4) 프로그램 실행과정을 추적하기 위한 도구 5) 사용방법 및 실험진행에 관련된 문서화 교육적 목적이외에도 현대적 시스템에서 고려되고 있는 멀티프로세서 시스템, 분산시스템, RISC구조 등에 대한 모의시스템 연구가 ASESS의 확장을 통해 진행된다면, 앞으로의 시스템 구조에 관한 연구 활동에도 많은 효과가 기대된다. It is important for beginning students who major in computer science to understand the basic operation structure of computers and take a laboratory. As a method to obtain the merits in views of laboratory environment and educational effects. we implemented ASSESS which simulates a simple hypothetical computer. After this paper in introduced ASSESS architecture through internal components, flows, and implemented ASSESS assembler is described in the environment of operation, and format and operation of assembler and target architecture. ASSESS assembler have set about expansion a laboratory environment in the course of introducing computer system, and a fundamental model for simulator implementation project in the course of introducing systems programming and for education on basic assembly language

Garcin 증후군으로 발현된 연골육종 1예

강성수,김명권,박현미,류근신,신동진 대한신경과학회 1999 대한신경과학회지 Vol.17 No.2

교육대학 입학사무 전산화에 대한 고찰

강성수 晋州敎育大學校 科學敎育硏究所 1985 科學敎育硏究 Vol.11 No.-

製品의 Life Cycle을 고려한 最適 設備投資政策의 決定

姜聖壽 慶南大學校 附設 工業技術硏究所 1987 硏究論文集 Vol.5 No.-

本 硏究는 製品의 Life Cycle을 고려하여 複數의 Alternatives 中에서 全體의 投資利益을 最大로 하는 最的 Alternative를 선정하는 方法과 절차를 제시하고 있다. 이 방법을 使用함으로써 전통적 損益分岐圖表에 의한 B·E·P 分析및 損益의 計算에 의한 方法보다 合理的인 投資代案을 선택할 수 있을 뿐만 아니라 보통의 代贊案의 比較선택 방법보다 많은 노력과 時間을 줄일 수 있다. This study represents the method & procedure of selecting the best one alternatives among multiple alternatives which maximizes the total profits of investment under consideration of product's life cycle. By using this method we have advantage of reducing more efforts and time of selecting the best one alternative than simple comparing method of evaluating the value of annual equivalent cost of alternatives and we have advantage of selecting more reasonable alternative than the method of selecting alternative by comparing B·E·P and profit of conventional B·E·P chart method.

2次元 壁面제트의 亂流特性에 關한 硏究

姜昌壽,李相龍 慶北大學校 1985 論文集 Vol.39 No.-

The turbulent structures of both the disturbed and undisturbed plane wall jet are experimentally investigated by the linearized constant temperature hot-wire anemometers with X-probe. The aspect ratio of the contraction nozzle is 25.4. The measurements of this experiment are performed for each of rectangular cylinders with various heights of 4.5㎜, 9㎜ and 18㎜. The mean velocity, turbulent intensities, and Reynolds shear stresses are measured along the x-axis at constant Reynolds numbers. The wall jet becomes truly self-preserving near the distance of 14 times of the nozzle width and most of the measurements were made in excess of this distance. The half value distance of the wall jet was linearly proportional to x. Turbulent intensities and Reynolds shear stresses of the disturbed wall jets are reached to the maximum values in the reattachment point and rapidly decayed after reattachment. The static pressure distribution on the surface of wall was positive value in the upstream and negative value in the downstream of the disturbunce.

품질분임조활동에 대한 의식구조분석

강성수,박영만,황승국 경남대학교 신소재연구소 1996 論文集 Vol.7 No.-

이 논문은 퍼지구조모델링법을 이용하여 품질분임조활동에 대한 의식구조분석을 하는 방법을 제공한다. 퍼지구조모델링법은 의식구조를 모델링하는 방법으로, 이 방법은 인간의 주관적인 판단의 일대비교의 회수가 많고, 판단에 대한 정도라고 할 수 있는 정합성을 체크하기 어렵다. 따라서, 본 논문에서는 계층화의사결정법에서의 일대비교행렬의 개념을 도입하여 퍼지구조모델링법으로서 의식구조를 분석하였다. This paper provides a method of consciousness structure analysis for quality circle activity using fuzzy structural modeling. Fuzzy structural modeling. which is a modeling method for consciousness structure, has a large number of pairwise comparison by human subjective judgement and is difficult to check the consistency index of denoting the precision for human judgement. Thus, in this paper. we analyzed the structure of consciousness by fuzzy structural modeling method. introducing the concept of pairwise comparison matrix in Analytic Hierarchy Process.