http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
사이펀 작용을 이용한 무구배 층상배관 배수시스템의배수유동특성에 관한 연구 - 가이드가 부착된 연결이음관의 제안 및 성능실험 -
차영호,이정재 대한건축학회 2005 대한건축학회논문집 Vol.21 No.6
In Korea, pumping pipe using gravity way by water is the most popular method in drainage system. But, it is difficult to repair a drainpipe in this method because the drain pipe diameter is increased as using this method. Therefore, we must have a new concept to shorten the pipe diameter for setting drainpipe on the floor. In this study, we propose a new drainage system that aims for an adaptedness with buildings, freedom of plan, construction and renewal in water pipe equipments, etc. The new system is not need of incline of piping, and it uses drainage power that is changed potential energy by high velocity flow as making Siphonage at vertical pipe. Therefore, the diameter of piping can decreased than existing piping system established in the ceiling. Also because connecting position will be located at the lower part, it is changed the potential energy of drainage to the high velocity flow. In addition, drainage will be smooth because the fixture drain is linked by each drain piping.
구배가 없는 신배수시스템의 제안 및 배수유동 특성에 관한 실험적 연구
차영호,이정재 대한설비공학회 2005 설비공학 논문집 Vol.17 No.5
In Korea, pumping pipe using gravity way by water is most popular method in drainage system. But, it is difficult to repair a drainpipe in this method because the drain pipe diameter is increased as using this method. In this research, we propose a new drainage system. The system aim for an adaptedness with buildings, freedom of plan, construction and renewal in water pipe equipments, etc. The new system is not need of incline of piping, and it uses drainage power that is changed potential energy by high velocity flow as making Siphonage at vertical pipe. Therefore, the diameter of piping can decreased than existing piping system established in the ceiling. Also because connecting position will be located at the lower part, it is changed the potential energy of drainage to the high velocity flow. In addition, drainage will be smooth because the fixture drain is linked by each drain pipes.
알팔파의 사료가치연구 1 . 알팔파 가공시 영양가 변화에 관한 연구
차영호,문철성,강태홍,김강식 ( Y . H . Cha,C . S . Moon,T . H . Kang,K . S . Kim ) 한국축산학회 1990 한국축산학회지 Vol.32 No.8
In order to investigate feed values due to processing form of alfalfa, this study was carried out with 4 heads of sheep and Korean Native Cattle, respectively, for pellet, cube and hay of alfalfa imported in the year of 1984 and 1988. The results obtained were as follows; 1. Proximate composition Crude protein content was highest(24.66) in cube but lowest(17.60%) in pellet. crude fiber content was 29.0 and 17.82%, respectively, in pellet and cube, but NFE contents similar in all forms. 2. Cell wall constituent content ADF and NDF contents were 49.42 and 37.41%, respectively. in pellet but 31.15 and 22.03%, in cube. 3. Amino acid and mineral composition Contents of cystine and methioine were lowest in all forms. Ca, P and K were similar in all forms. Na content(%) was highest(0.45) in hay but lowest(0.05) in pellet. 4. Digestibility and digestible nutrientIn order to investigate feed values due to processing form of alfalfa, this study was carried out with 4 heads of sheep and Korean Native Cattle, respectively, for pellet, cube and hay of alfalfa imported in the year of 1984 and 1988. Digestibilities and nutrient values were high in cube. Dry mater digestibility and TDN value were 67.06 and 62.51%, respectively, in cube and 55.76 and 55.65% in pellet. 5. Because nutrient values of alfalfa are varied according to cutting stages and cultivating area such as above results, It is required to utilize alfalfa with evaluating exact feed components of alfalfa and considering feed cost between alfalfa and others.