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김종배,이동기 대구산업정보대학 1994 논문집 Vol.8 No.-
After passing through both agricultural and industrial phase, today society, due to technological revolution is becoming highly information oriented. This has resulted in the need for greater amounts of information in all fields of society. In step with this trend, office automation, home automation and factory automation are being promoted extensively. In turn these tendencies have been the main cause of grand scale disasters and the problem of ensuring safety in buildings has manifested itself as a problem for the whole society. However at present in most buildings the fire-fighting facilities and supervisory equipments are usually set-up separately, trailing greatly in areas of safety and efficency. Although there are numerous methods for improving security in office buildings, this study will focus on Intelligent Building and ultimately try to reach the goal of ensuring safety in buildings through interconnecting security systems with intellectualization of buildings. Untill now security systems were usually set-up and operated apart from the central supervision and control department which oversees and regulates the electricity, air conditioning, sanitary facilities and so on. But in Intelligent Buildings central supervisory, control system is introduced in which fire-fighting, crime prevention facilities, electricity, air conditioning, comunications devices and so on are all inter-connected organically, and thus each facility is comprehensively intergrated and interlocked. From the above viewpoint, planning of a system best suited to the requirements which have taken into consideration future usage and expansion on the basis of extensive professional knowledge and experience, must be the preconditions for the fulfillment of Intelligent Building with its highrate safety capabilities.
강변여과 취수시 과도한 지하수 하강을 저감시키기 위한 인공함양의 활용방안 연구
이동기 ( Dong Kee Lee ),박재현 ( Jae Hyeoun Park ),박창근 ( Chang Kun Park ),양정석 ( Jung Suk Yang ),남도현 ( Do Hyun Nam ),김대근 ( Dae Kun Kim ),정교철 ( Gyo Cheol Jeong ),최용선 ( Yong Sun Choi ),부성안 ( Sung An Boo ) 대한지질공학회 2004 지질공학 Vol.14 No.4
강변여과수의 과도한 취수는 제내지 지하수위 하강을 발생하게 하며 이로 인해서 제내지 농경지의 토양 건조도가 증가되어 과도한 관계용수의 보충이 필요할 뿐만 아니라 지하수위 하강으로 인한 기존 관정사용이 어려워져 더 깊은 새로운 관정을 개발해야만 한다. 본 연구에서는 지하수위 하강을 저감시키기 위한 방안으로 제내지 측에 인공함양우물을 설치하는 방법을 제안하였다. 창원시 강변여과 시설에 적용한 결과 인공함양우물의 최적 위치는 취수정으로부터 제내지 측으로 200m 지점에 위치하며, 함양량을 취수량의 5%를 유지하는 것이 지하수위하강을 저감하기위한 효과적인 조건으로 판단되었다. Excess pumping on the river bank filtration well causes the over drawdown in the protected area of bank, which may make many problems such as soil water contents, pumping head in the irrigated land, and it needs more irrigation and development of the deeper irrigating well. In this study the installation of the artificial recharging well was suggested to reduce the excess draw down in the protected land. Artificial recharging wells were applied at the bank filtration site of Changwon city by using Visual-MODFLOW. The optimized conditions are calculated that the recharging well is located about 200m apart from the pumping well, and the recharging rate is 5% of the pumping yield.
솔더페이스트로 솔더링 후 잔류 플럭스 오염물에 대한 준수계 세정제의 금속치구를 이용한 세정성능 평가방법 연구
이동기(Dong-Kee Lee) 한국청정기술학회 2008 청정기술 Vol.14 No.2
본 연구에서는 솔더페이스트(solder paste)로 솔더링후 표면에 잔류하는 플럭스(flux)의 효과적인 세정성능 평가방법 개발을 목적으로 하였다. 솔더링시 플럭스의 퍼짐오차를 줄이기 위해 본 연구에서 고안한 금속치구를 이용하여 1,1,1-TCE 및 플럭스 제거용 몇 가지 대표 준수계 대체세정제에 대하여 세정시간에 따른 플럭스 제거율을 무게측정법으로 측정, 비교하였다. 세정시간 변화에 따른 각 세정제의 세정효율을 측정한 결과 측정값들의 상대표준편차(RSD)가 약 4% 이하로 data의 신뢰성이 확인되었다. 따라서 솔더페이스트로 솔더링후 대체세정제의 잔류플럭스의 세정성능 평가시험에 본 연구에서 적용한 금속치구(metal test tool)를 이용한 평가방법이 유력한 방법으로 적용가능할 것으로 판단된다. 그리고 이 평가방법을 적용한 결과 현재 상용화 되어 있는 우수하다고 알려진 몇 가지 대표 준수계 대체세정제 중 ST100SX와 750H가 고활성 플럭스에 대한 세정력이 우수한 성능을 나타냈으나 기존의 1,1,1-TCE에 비해서는 현저히 떨어짐을 확인할 수 있었다. In this study, in order to develop evaluation method of the cleaning efficiency of residual flux which remains on the surface after soldering with solder paste, a specially designed metal tool is used to reduce spread uncertainty of flux while soldering. Using this tool, the measurement of cleaning efficiency of flux after soldering for some typical alternative semi-aqueous cleaners and 1,1,1-TCE by weighing method was conducted. As the test result of cleaning efficiency for each cleaner at several different cleaning times, the precision of the data is confirmed to within about 4% relative standard deviation (RSD) range. So, it is considered that this would be a good evaluation method for evaluating the cleaning efficiency of the residual flux which remains after solder paste soldering in the alternative cleaning. The results of this test method shows that the cleaning efficiency of ST 100SX and Neozal 750H in the cleaning of residual flux was better than other semi-aqueous cleaners, but its cleaning efficiency was clearly inferior to 1,1,1-TCE.
도파민 길항제에 치료 불응성인 기능성 소화불량증 환자에서 시사프리드의 효과
이상인(Sang In Lee),서원태(Won Tae Seo),박인서(In Suh Park),이용찬(Yong Chan Lee),이동기(Dong Gi Lee),이광재(Kwang Jae Lee),김도영(Do Young Kim),신용운(Yong Woon Shin),김영수(Young Soo Kijm),김범수(Pum Soo Kim),김동기(Dong Kee Kim) 대한소화기기능성질환·운동학회 2000 Journal of Neurogastroenterology and Motility (JNM Vol.6 No.2
N/A Background/Aims : Prokinetics are commonly used for the treatment of functional dyspesia, but their methods of action are different. First, we compared the efficacy and safety of the dopamine receptor antagonists, which were domperidone maleate and levosulpiride, in a 2 week treatment in functional dyspepsia, then investigated the efficacy and safety of cisapride tartrate in a 2 week treatment in those who were resistant to domperidone maleate or levosulpiride. Methods : One hundred Forty-nine patients, who were diagnosed with functional dyspepsia, were selected. The subjects were randomly divided into two groups, domperidone maleate (75) and levosupiride (74). Daily they took 30mg of domperidone maleate (DOM) or 75mg of levosulpiride (LEV) for 2 weeks. Then the subjects who didn't respond to these treatments took 30mg of cisapride tartrate for the following 2 weeks. Results : At week 0, the total symptom scores of the DOM group and LEV group were 8.01±2.57 and 8.14±2.65 respectively, which were not statistically different. At week 2, the total symptom scores of the DOM and LEV groups were significantly reduced to 4.28±3.30 and 4.85±3.53(p=0.0001). The efficacy rates of the DOM and LEV groups at week 2 were 50.8% vs. 44.1%. The rate of adverse events in the LEV groups was much higher than in the DOM group(17.7% vs. 8.0%). In addition the rate of change from normal to abnomal in prolactin level was markedly higher in the LEV than that of the DOM group(80.0% vs. 8.3%). After 2 weeks of treatment with cisapride tartrate, the total symptom score was significantly reduced to 3.77±2.49(p=0.0001), and the efficacy rate was 75.0%. The satisfaction of the resistant subjects in efficacy of cisapride compared with the previous treatment was 73.3%. The rate of adverse events of cisapride tartrate was 5.0%. Conclusions: Considering efficacy and safety of domperidone maleate and levosulpiride, domperidone maleate was the safer drug for the treatment of functional dyspepsia, and cisapride tartrate can be a useful drug in those patients who are resistant to dopamine antagonists like domperidone maleate and levosulpiride.