http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김영득(Young-Deug Kim),고영환(Young-Hoan Ko),장태현(Tae-Hyeon Jang),홍정조(Jeong-Jo Hong),송영철(Young-Cheol Song),김현준(Hyun-Jun Kim) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
Since its establishment in 1967, K-water has been implementing national water resources management policies regarding multi purpose dams, water supply dams and regional water supply systems. also, K-water is trying to make a great role of developing Korea's renewable energy as hydro, solar, wind and water cooling. This paper contains the study to feasibility of under water turbine application to convert free flow power into clean renewable energy. The proposed site is Dae-Cheong regulating pondage, which controls Kum river water supply after Dae-Cheong dam. This study tried to estimate water velocity, power extraction and economic feasibility based on helical water turbine application by theoretical assumption and calculations.
崔奎碩,張泰鉉 漢陽大學校 環境科學硏究所 1994 環境科學論文集 Vol.15 No.-
본 연구는 국내외의 염색 가공공장의 배출폐수의 수질을 측정하여 그들의 공통점을 찾아내어 염색 가공 공장에서 실제 사용하고 있는 주요 약제로 가상 폐수를 조제하여 막을 이용하여 각 염료의 농도(200∼5,000ppm), 온도(18∼24℃), 압력(3∼40㎏/㎠ G) 변화 등에 따라 처리수의 수질 상태와 용질의 제거율을 비교 분석하여 폐수 재활용의 가능성을 검토하였다. 실험 결과, 폐수의 온도 18℃이상, 염료의 주입 농도 5,000ppm 이하 및 Pump 구동 압력 즉, Nanofiltration Membrane의 경우 5㎏/㎠ G이상, Reverse Osmosis Membrane의 경우 20㎏/㎠ G 이상의 조건하에서 다소 차이는 보였으나 처리수의 TDS는 3∼22ppm(배제율 95.1∼99.5%)이였고,?? 4∼8ppm(배제율 99.3∼99.5%)의 범위을 나타냈다. 그러므로 염색폐수의 처리수는 염색 가공 공장의 양질의 생산수로서 사용이 가능 하였으며, 또한 염색 가공공장의 염색 공정마다 폐수처리를 할 경우 약품 또한 재활용이 가능한 것으로 나타났다. The study for reuse of dyestuff wastewater by the membrane technique was carried out. Three kinds of dyestuff wastewater were used prepared by using reactive dye, acid dye and direct dye. Nanofiltration membrane(Roose Reverse Osmosis) and reverse osmosis membrane were tested as filter media for the given dyestuff wastewater. Testing temperature(18 to 24℃), pressure(3 to 40 ㎏/㎠ G) and dyestuff concentration(200 to 5,000 ppm) are changed to obtain optimum conditions. It was found that the rejection rates of TDS and COD Mn in dyestuff wastewater is not less than 95 and 99% respectively under the optimized condition of temperatures(up to 18℃), pressure(up to 5㎏/㎠ G in case of nanofiltration and up to 20㎏/㎠ G in case of reverse osmosis membrane) and dyestuff concentration(less than, 5,000ppm) and it is considered to be reused effectively. Thus, in conclusion these results could be a good basis for zero discharge systems or quasi-zere discharge systems.
김민중,김득곤,장태현 청주대학교 산업과학연구소 2001 産業科學硏究 Vol.18 No.2
The educational environment of university campus is very important. Because that the campus is creative environment and make emotional as place which make the intellectual and emotional humanbeing. In this university case, 1. The establishment of facilities in out of campus based the student's opinions 2. The place of establishment and facility things have to surveied when the university make the master plan about space, circulation, season and etc. 3. The environment and life mode of facilities are research by the environmental design aspects. 4. Every facilities in the campus require the opinion and participation of professionalists. 5. The University Environmental Design Committee composed in the school organized system. According to above the results, this article proclaimed the University administrative staff and relative professionalists seasch to effective methods and to approach solving the problems.