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신재생에너지를 이용한 사막화 방지 시스템 실증 (몽골)
김만일(Kim, Man-Il),이승훈(Lee, Seung-Hun),황정훈(Whang, Jung-Hun),조운식(Cho, Woon-Sic),박문희(Park, Moon-Hee) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06
Generally, wind or solar power system is operated as a stand-alone power system, the efficiency of which could be higher by designing wind-solar combined system considering average wind speed and solar radiation of the desert region, Mongolia. This system is designed to generate electricity for power users and pumps the ground water for irrigation using deep well pump. The ground water can be used for farming or forestation where there is no or little irrigation system. In connection with this study, a renewable energy park, Green Eco Energy Park, was developed at about 50km east of Ulaanbaatar. 3 sets of 10kW wind power generator and 70 kW of solar power module were installed there. The electricity generated from the system is used to on-site office building and deep well pump for ground water pumping. A 10kW stand-alone solar pumping system, which has no rechargeable battery system, is installed to pump the ground water with the amount of generated power. The ground water is stored in 3 artificial ponds and then it is used for raising nursery tree and farming. The purpose of this study is to provide a possible energy solution to desert regions where there is no or little power system. The system also supply power to ground water pump, and the water can be used for farming and forestation, which will also be a solution of preventing desertification or spreading of desert area.
김동철,정만,박배근,김정헌 大韓成形外科學會 1992 Archives of Plastic Surgery Vol.19 No.2
The distal phalanx is a very important for grip, pinch and percussion with delicate sensation, but is frequently injured due to its anatomical position. Cases of finger tip injuries have in creased with the increasing use of industrial and household appliances. Recently, results of replantation of amputated fingers have improved along with technical improvement. But the replantation of amuputated distal phalanx is technically difficult and various methods such as skin graft, skin flap and composite graft have been used to preserve sufficient lengths of digit with regard to functional and aesthetic aspects. We studied 27 patients (33 digits) from March 1988 to Feb. 1991, and retrospective study was done for the review of following issues: sex and age distribution, cause of injury, prevalent site of injury, methods and result of treament. Following results were obtained. 1) Male(81%) and third decaes of age(37%) were more frequently injured. 2) The right hand was more frequently injured and the index(33%) was the most commonly injured finger. 3) Occupational injury was 84.8% and half of them was due to pressor. 4) The Success rate of composite graft was 75% and microvascular replantation was 50%. We present cases that were treated with microvascular replantation and our modified method using composite graft with cross-finger flap.