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한근희,정진도,류정인 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.1
The erosion characteristics of heat exchanger tube submerged in bubbling fluidized bed were investigated in a cold model reactor which had a cross sectional area of 0.15×0.2m and a height of 1m. The bed materials were two different sizes of river sand with the average diameter of 0.731 and 1.243mm. The static bed height was 45cm. The wear specimens were made of acrylic tube with a diameter of 24.6mm and a length of 150mm. Test tubes were located inside the bed with three tubes in a low at 15, 30, 45cm and with a single tube at 60cm above distributor plate. Test was performed with the variation of fluidization velocity of 1.2 to 2.2m/s for 100 hours per set. The test was performed ti investigate the effects of fluidization velocity, array of tubes, distance above distributor plate on the erosion rate, and the erosion trend of tube surface with radial and axial direction. The results showed that the erosion rate increases with fluidization velocity and with distance above the distributor plate. The erosion was severe at the tube located in the splash zone of 60cm above the distributor. the trend with radial direction showed severe erosion at the 4-8 o'clock clockwise compared to other areas, especially 5 and 7 o'clock clockwise.
유압 인버터 엘리베이터에서의 극저속 속도제어를 위한 퍼지논리 제어기의 설계
한권상,김병화,이우철,장태호,이건학,사공석진,안현식,김도현 대한전자공학회 1999 夏季綜合學術大會 論文集 Vol.22 No.1
In this paper, a fuzzy logic controller is designed for speed control of a hydraulic inverter elevator. Mathematical modeling of an elevator actuated with hydraulic system is presented and the friction characteristics of a cylinder is examined, which may cause the abrupt increase of the acceleration in the zero-crossing speed region. Simulation results show that the proposed fuzzy logic speed controller yields a better control performance than conventional PID controller.
완전 포상기태 이후 발생한 지속성 융모질환의 치료경험 2례.
이진희,류은석,김윤숙,김종수,최승도,선우재근,배동한 순천향의학연구소 2005 Journal of Soonchunhyang Medical Science Vol.11 No.1
Persistent tumor develops in approximately 20% of patients with a complete mole, and chemotherapy is required to achieve remission. Following evacuation of hydatidiform mole, careful hCG monitoring is mandatory since it is the most reliable and sensitive method for the early detection of gestational trophoblastic disease. In carefully selected patients in whom the risk of developing gestational trophoblastic disease is significant or when the availability of hCG testing is suboptimal, chemoprophylaxis has been shown to decrease the risk of gestational trophoblastic tumor. We report here two cases of patient, 16-year-old and 45-year-old women who experienced unusual course after the evacuation of a complete mole and markedly elevated serum β-hCG levels. The patient developed persistent gestational trophoblastic disease and were successfully treated with EMA-CO and hysterectomy.
김진도,한승환 부천대학 2001 論文集 Vol.22 No.-
본 연구는 전국에 소재하는 전문대학 사회체육 관련학과의 교과과정을 살펴보는 데 그 목적이 있으며 조사자료는 인터넷과 팩스, 직접방문 동을 통하여 얻었으며 17개 전문대학을 조사대상으로 선정하였다. 본 연구는 이론과 실기, 2개 분야로 나누어 연구를 진행하였으며 그 결과는 다음과 같다. 1. 교과목수의 비율에 의하면, 실기 교과목수가 이론 교과목보다 높은 비율을 나타냈다. (이론 교과목수 : 40.0%, 실기 교과목수 : 60.0%) 2. 실기 교과목의 경우 필수보다 선택 비율이 월등히 높았으며 이론 분야는 필수와 선택의 비율이 비슷하였다. (이론 교과목 : 필수 19.2%, 선택 20.9%, 실기교과목 : 필수 10.5%, 선택 49.5%) 3. 이론 분야에서는 자연 과학의 비율이 인물사회 과학보다 다소 높게 나타났으며(인문사회과학 47.7%, 자연과학 52.3%) 실기 분야에서는 레져종목이 가장 높게 나타났고 그 다음이 기초종목으로 나타났다. (레져종목 : 42.1%, 기초종목 : 22.1%) 4. 개별 교과목별로 살펴볼 때, 이론 분야에서는 사회체육학이 가장 높은 비율을 보였고 실기 분야에서는 골프가 가장 높은 비율을 보였다. (사회체육학 : 6.7%, 골프 : 9.3%) The purpose of this study was to analize the curriculum of department of community sports and recreation in technical college. Data was obtained from 17 technical college by means of internet and fax, direct visit. This study was divided into two fields to compare and the results were as follows. 1. According to the rate of courses, it was revealed that the rate of the practical fields were higher than the theoretical fields. (theoretical fields. : 40.0%, practical fields : 60.0%) 2. In regard to practical fields, the rate of elective courses were much higher than the required courses. (practical fields-required courses : 10.5%, elective courses : 49.5%, theoretical fields-required courses : 19.2%, elective courses : 20.9%) 3. With regard to theoretical fields, the rate of natural sciences were slightly higher than cultural-social sciences.(cultural-social science : 47.7%, natural science : 52.3%) As to practical fields, it was revealed that the rate of leisure sports were the greastest number(42.1%) and the rate of basic events were 22.1%. 4. In theoretical fields, it was revealed that the rate of sport and leisure studies(6.7%) was the highest and in the practical fields, the rate of golf(9.3%) was the highest.
자매에서 발생한 중증 마이코플라즈마 폐렴에서 스테로이드 치료
김도희,이경일,김명숙,윤유숙,황자영,임정우,강진한,이준성 대한감염학회 2009 감염과 화학요법 Vol.41 No.3
Numerous evidences support the pathogenesis that M. pneumonias pneumonia is associated with cell-mediat-ed immune reaction. We report 2 cases of severe M. pneumoniae pneumonia in previously healthy sisters, who were both admitted during an epidemic of M. pneumoniae pneumonia. The elder sister, who was 16 years old, was admitted with M. pneumoniae pneumonia. She showed no response to treatment with clarithroycin and levo-floxacin, and eventually progressed to severe ARDS, requiring mechanical ventilation. After treatment with hydrocortisone (200 mg/day), there were rapid improvements in clinical manifestations and chest radiographic findings. The younger sister, who was 14 years old, was admitted 10 days later, Presenting with fever but no pneumonic lesions on chest radiograph. Just like her sister, the infection showed no response to clarithromycin. Fever persisted and pneumonic consolidation with mild pleural effusion was noticed in the left lower lobe on the 5th hospital-day. After treatment with oral prednisolone (1 mg/kg), she showed rapid defervescence and on the 8th hospital day, no pneumonic lesions were detectable on chest radiograph. Given the fact that the pathogenesis of pneumonia and extrapulmonary manifestations in M. pneumoniae infection is immune-mediated, an immuno-suppressive therapy would be validated for selected patients with M. pneumoniae infections.
김도진,김태한,좌종근 제주대학교 공과대학 첨단기술연구소 2004 尖端技術硏究所論文集 Vol.15 No.1
The applicability of a small hydro-power system for water pollution treatment facilities is investigated at the fish farm in Nam Jeju. For this study, the present situations of the fish farm are examined, and the running problem of screen is found out. As a means of solving this, the small hydro-power system which runs with seawater of head tank is considered. In order to apply this system, the field examination is carried out by sampling methods. The flux and the gross head are measured from selected site at the fish farm, and available generating electric power is estimated by these data. From this result, it is turned out that there is a set up possibility of this system at the fish farm.
Hopfield 모델을 이용한 PID 자기동조 제어기에 관한 연구
정영호,한진옥,임영도 동아대학교 공과대학 부설 한국자원개발연구소 1992 硏究報告 Vol.16 No.1
This paper design a pole placement PID self-tuning controller utilizing the method of a neural network in the plant parameter estimation. An algorithm based on least square optimization method, and shown here that a Hopfield network can be applied to least square estimation. The Plant constitute second order linear time invariant plant. The results compared obtained those method with conventional PID control method.