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권병철,권경우,김기길,명태식,박찬호,박귀용 한밭대학교 산업과학기술연구소 1995 논문집 Vol.3 No.-
This paper is to be illustrated automation in the design of Pumping Station and Draining Station. Program for design automation applying Auto LISP, DCL can be used to design and draw simultaneously. The study result are as follows. 1. Optimal design has been introduced and precise design has been possible using CAD. 2. Dialog design is possible with introduction the concept of design automation, and design cost can be reduced greatly.
혈소판 응집 억제제의 효과 측정법에 대한 고찰과 지원자에서 Triflusal의 혈소판 응집 억제능 평가
이병요,장힘찬,백인환,윤휘열,권광일 충남대학교 약학대학 의약품개발연구소 2010 藥學論文集 Vol.25 No.-
The anti-platelet agent is a member of a class of pharmaceuticals that decreases platelet aggregation and inhibits thrombus formation. They are effective in the arterial circulation and widely used in primary and secondary prevention of thrombotic cerebrovascular or cardiovascular disease. As a method for estimating the effects of anti-platelet agent, platelet aggregation was conventionally measured using the optical method or the impedance method. Several alternate methods currently in development or recently developed were considered, including luminescence method, flow cytometry, laser-light scattering method, and Verify Now-P2Y12 assay. Principles, advantages, and disadvantages of the optical method, impedance method, and the other alternate platelet aggregation methods were discussed in this report. 15 human volunteers were recruited for the evaluation of the efficacy of triflusal using the optical method. After the oral administration of a single dose of 900mg, 15 subjects received eight doses administered at 24-hour intervals of 600mg triflusal. Using platelet rich-plasma from above subjects, we performed baseline platelet aggregation test induced by adenosine diphosphate(ADP), collagen, and arachidonic acid. The results of platelet aggregation test after triflusal administration were compared with the baseline study. Triflusal significantly inhibited platelet aggregation induced by ADP (33.0±21.3%) and arachidonic acid (99.1±1.2%), respectively. Therefore, we concluded that anti-platelet aggregation effect of triflusal can be studied successfully with the optical method. Each of the platelet aggregation methods has value for evaluating the effects by various mechanisms of the anti-platelet agents. The ideal method for estimating the platelet aggregation as it relates to safety and efficacy in patients treated with anti-platelet agents will need to be determined in clinical trials.
이병찬,권영직,신호균 대구대학교 산업기술연구소 1989 産業技術硏究 Vol.8 No.-
This study first searched the theoretical background of programmar productivity related with white coller productivity and carried an empirical study for improving the productivity. In experimental study, productivity was not measured by programming cost but by central processing unit time(qualitative aspects), and it was analyzed by COBOL language and 16 bit personal computer. Also, three file organization method and three access method were selected with this experiment. The experiment was conducted with test data for a programs by individual programming. The result was that relative file is more efficient regardless of updated ratio in file organization and dynamic method of random method is more efficient in file access method in case of 500 updated data, random access method in more efficient in the other cases. Also sequential was more efficient in input in case of 500 updated data, and relative file was efficient in output.
좌각차단을 동반한 심부전증 환자에 실시한 양심실 심박조율기 치료 : 증례 보고
김찬욱,차태준,김성만,김민대,권성일,서수홍,최병주,주승재,이재우 고신대학교 의학부 2002 高神大學校 醫學部 論文集 Vol.17 No.1
Epidemiological studies suggest that 30-50% of patients diagnosed with symptomatic congestive heart failure(CHF) have electrocardiographic evidence of a major intraventricular conduction delay, which may worsen left ventricular systolic and diastolic dysfunction through asynchronous ventricular contraction and paradoxical interventricular septal wall motion. Biventricular pacing is an emerging therapy allowing simultaneous electrical stimulation of the both ventricles with an implantable pacing system and it improves hemodynamics and well-being of patient by reducing ventricular asynchrony. Recently, we underwent biventricular DDD pacemaker implantation in a patient with CHF and Left bundle branch block and was significantly improved exercise tolerance and quality of life in that patient.
마산만 퇴적물의 중금속 및 유기염화합물 오염에 관한 연구
이찬원,민병윤,권영택,양운진,이규환 경남대학교 환경문제연구소 1990 환경연구 Vol.12 No.-
마산내만 및 마산만 유임 주요하천의 오염퇴적물을 1988년 7월부터 1989년 8월에 걸쳐 채취하여 중금속 및 유기염소화합물을 분석하였다. 오염퇴적충의 뚜께는 10㎝에서 169㎝의 넓은 분포를 보였으며 조사지점의 중금속농도는 지점에 따라 많은 차이를 나타내었다. 특히 인근에 마산수출자유지역 및 조선산업이 위치한 조사 지점에서는 모든 중금속의 농도가 가장 높게 나타났다. 마산만 퇴적오염물 중금속 농도를 오염된 일본의 자료와 비교하였을때 Osaka만의 수온을 제외하고 모든 평균농도가 높게 나타났다. 유기염소화합물(PCB 및 DDE)의 농도는 주거지역 및 공장지대가 함께 위치한 산호천 및 마산시 연안지역에서 높게 검출되었다. 본 연구결과에 의하면 마산만과 같은 폐쇄성 해역에서 중금속 오염원으로 공장폐수가 고려될때는 퇴적된 오염물질의 중금속 분석이 좋은 척도가 철 수 있음을 시사하고 있다. Sediments were collected from Masan bay and two main waterways into Masan Bay in the period of July 1988 to August 1989 for the analysis of heavy metals and Organochlorine compounds. The polluted layer of black sludge had a wide range between 10㎝ to 169㎝ and the content of heavy motels was widely distributed from site to site. One site near the Masan free-export area and a shipmaking company was extremely contaminated by heavy metals. All the average concentration of heavy metals in the sediments from Masan Bay were higher than those from Japanese bays compared except Hg from Osaka Bay. Higher levels of PCBs and DDE were found in sediments from Sanho stream and along the coastal area of Masan city. The results obtained in this study imply that the heavy metal analysis of sediments may be a useful to reveal the pollution sources in a closed bay fuck as Masan Bay.
정식 시기와 적심 횟수가 화단국화의 생장과 개화에 미치는 영향
姚婧超, 정해준, 김동찬, 이진희, 권민훈, 서병기 배재대학교 자연과학연구소 2013 自然科學論文集 Vol.24 No.1
This study was conducted to investigate optimum planting date and pinching times on the growth and flowering of garden chrysanthemum(Dendranthema grandiflorum Ramat.). 3 lines of garden mums were planted on May 16, June 13 and July 11 respectively. As planting date was delayed, all the 3 lines' plant height and plant width was reduced. 09-19-49 line got the biggest plant height and width, followed by 09-11-37 line. And 08-166-02 line was the smallest. In different planting times, the experiment group of May 16 and June 13 got the biggest plant height, plant width and stem diameter. However, in the experiment group of May 16, most of the plants got flattened. The experiment group of June 13 got the best ornamental value, and the ornamental value was reduced in the experiment group of July 11 by the short vegetative growth. 09-19-49 line got the most flowers, while in different planting time, the experiment group of May 16 got the most flowers. 09-11-37 line got the biggest flower diameter. 09-11-37 line and 09-09-51 line were planted in the containers on the rooftop. Each groups were pinched by 1, 2 and 3 times on July 2, July 26 and Aug 16 respectively. There was no effect on plant height, plant width, and stem diameter of 09-09-51 line and 09-11-37 line between 1-time-pinching group and 2-time-pinching group. But 3-time-pinching group was reduced. There was no significance in flower diameter of these two lines but the number of flowers was reduced by more pinching times. Therefore, in this experiment, the groups which were planted on June 13 got the best ornamental value and the recommended planting time is in the middle of June. Furthermore, 2 times of pinching was recommended.