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안료제조공정시 배출되는 염화알루미늄 용액의 재활용에 관한 연구
한승우(Sung-Woo Han),이헌모(Heon-Mo Lee),윤종호(Jong-Ho Youn),정병곤(Byung-Gon Jeong),양병수(Byung-Soo Yang) 군산대학교 수산과학연구소 1995 水産科學硏究 Vol.- No.11
제품화시킨 염화알루미늄(AICI3) 용약과 현재 각 처리장에서 사용하고 있는 무기응집제(PAC,Alum)를 약품교반실험럽(Jar-test)을 통하여 응집효율을 비교하여 염화알루미늄(AICI3) 용액에 대한재활용 가치를 검토한 결론은 다음과 같다. 1. 안료제조 공정에서 배출되는 염화알루미늄 용액중에 알루미늄 조각을 넣어 반응시킬 경우 구리 저거효율이 99.8%이상으로 나타나 구리(Cu) 성분 제거에 효과적인 것으로 나타났다. 2. 제품화 시킨 염화알루미늄(AICi3) 용액과 무기응집제인 PAC(10%). Alum(8%)과의 응집실험에서 염색폐수 및 화학폐수에 대해서는 염화알루미늄(AICI3) 응집제가 PAC(10%), Alum(8%)에비하여 응집효율이 높게 나타났고, 피혁폐수의 경우 Alum(8&)이 다소 높은 응집효율을 나타내어폐수의 종류에 따라서 응집효율이 다르게 나타나는 것으로 평가되었으나 비교적 염화알루미늄(AICi3) 응집제의 응집효율이 우수한 것으로 나타났다. 3. 재품화 시킨 염화알루미륨(AICI3) 응집제의 응집특성 실험결과 응집제 주입량 500 - 1,500mg/1의 범위에서 주입량의 증가로 응집효율이 다소 증가하는 경향을 보이나 그 영향은 미미하였으며동일 주입량에서 pH 변화에 따른 응집효율차이는 페수의 종류에 따라서 다르게 나타나 폐수 성상에 따라 응집제 주입량 및 적절한 PH를 선정하므로서 응집효율을 높일 수 있을 것으로 평가되었다. With the comparision of coagulation efficiency through Jar-Test with the producted AlCl3, solution and inorganic coagulants - PAC, Alum - which are using at the each wastewater treatment plant, the reuse value for AlCl3, solution are concluded as follows: 1. The removal efficiency of copper in solution was higher than 99.8 % when the aluminum pieces were added and reacted in the AlCl3 solution from the pigment production process. Therefore, the AlCl3 solution was effective to remove copper. 2. From the coagulation experiments with the producted AlCl3 solution and inorganic coagulants - PAC (10%). Alum (6%) - the coagulation efficiency of AlCl3 was higher than that of inorganic coagulants - PAC (10%), Alum (8%) - for a dye and chemical plant wastewater. Wherease, Alum (8%) showed somewhat higher coagulation efficiency than that of AlCl3 for a leather plant wastewater. It was evaluated that the coagulation efficiency depended on the kinds of wastewater. However. in general, the coagulation efficiency of AlCl3 was superior to inorganic coagulants - PAC (10%), Alum (8%). 3. The coagulation efficiency tended to be increased with the increase of coagulant in the range of 500 - 1,500 (mg/I) from the characteristic experiment of producted AlCl3 coagulant but the effect was insignificant. 4. Since the coagulation efficiency by the variety of pH at the same dosage was different at the different kinds of wasterwater. Therefore, it was conculded that the coagulation efficiency could be increased by the proper pH and coagulant dosage with the characteristic of wastewater.
안료제조공정시 배출되는 염화알루미늄 용액의 재활용에 관한 연구
한승우(Sung-Woo Han),이헌모(Heon-Mo Lee),윤종호(Jong-Ho Youn),정병곤(Byung-Gon Jeong),양병수(Byung-Soo Yang) 군산대학교 수산과학연구소 2004 군산대학교 수산과학연구소 연구논문집 Vol.3 No.-
제품화시킨 염화알루미늄(AlCl₃) 용액과 현재 각 처리장에서 사용하고 있는 무기응집제(PAC. Alum)를 약품교반실험(Jar-test)을 통하여 응집효율을 비교하여 염화알루미늄(AlCl₃)용액에 대한 재활용 가치를 검토한 결론은 다음과 같다. 1. 안료제조 공정에서 배출되는 리 제거효율이 99.8% 이상으로 나타나 구리 (Cu) 성분 제거에 효과적인 것으로 나타났다. 2. 제품화 시킨 염화알루미늄 (AlCl₃) 용액파 우기응집제인 PAC(10%), Alum(8%) 파의 응 집실험에서 염색폐수 및 화학폐수에 대해서는 염화암루미늄(AlCl₃) 응집제가 PAC (10% ), 비하여 응집효율이 높게 나타났고, 피혁폐수의 경우 Alum(8%) 이 다소 폐수의 종류에 따라셔 응집효율이 다르게 나타나는 것으로 평가되었으나 비교적 염화암루미늄(AlCl₃) 응집제의 응접효율이 우수한 것으로 나타났다. 3, 제품화 사킨 염화암루미늄(AlCl₃) 응집제의 응집특성 실험결과 응집제 주입량 500 - 1,500mg/l 의 범위에서 주입량의 증가로 응집효율이 다소 증가하는 경향을 보이나 그 영향은 미미하였으며 동일 주입량에서 pH 변화에 따른 응집효율차이는 폐수의 종류에 따라서 다르게 나타나 폐수 성상에 따라 응집제 주입량 및 적절한 pH 를 선정하므로서 응집효율을 높일 수 있을 것으로 평가되였다. With the comparision of coagulation efficiency through Jar- Test with the producted AlCl₃ solution and inorganic coagulants - PAC, Alum - which are using at the each wastewater treatment plant, the reuse value for AlCl₃ solution are concluded as follows: 1. The removal efficiency of copper in solution was higher than 99.8 % when the aluminum pieCes were added and reacted in the AlCl₃ solution from the pigment production process. Therefore, the AlCl₃ solution was effective to remove copper. 2. From the coagulation expcr'iments with the producted AlCl₃ solution and inorganic coagulants - PAC (10%), Alum (8%) - the coagulation efficiency of AlCl₃ was higher than that of inorganic coagulants - PAC (10%), Alum (8%) - for a dye and chemical plant wastewater. Wherease, Alum (8%) showed somewhat higher coagulation efficiency than that of AlCl₃ for a leather plant wastewater. It was evaluated that the coagulation efficiency depended on the kinds of wastewater. However, in general, the coagulation efficiency of AlCl₃ was superior to inorganic coagulants - PAC (10%), Alum (8%). 3. The coagulation efficiency tended to be increased with the increase of coagulant in the range of 500 - 1,500 (mg/l) from the characteristic experiment of producted AlCl₃ coagulant. hut the effect was insignificant. 4. Since the coagulation efficiency by the variety of pH at the same dosage was different at the different kinds of wasterwater. Therefore, it was conculded that the coagulation efficiency could be increased by the proper pH and coagulant dosage with the characteristic of wastewater.
철도차량용 대형 알루미늄 압출재 용접부의 피로강도 평가
한승우(Han Seung Woo),이학주(Lee Hak Joo),이상록(Lee Sang Rok) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
The fatigue strength of welded aluminum alloy component has been evaluated. Extruded aluminum alloy component Al 6005-T6 was considered. That component could be one of appropriate candidates for floor structure in railway cars. Finite element analysis has been performed to obtain stress distribution in the welded aluminum component. The results of finite element analysis have been applied in designing the experimental setup for fatigue strength evaluation of welded component. Three point bending fatigue test has been employed, until fracture occurs, to evaluate the fatigue strength of the welded component. In addition, the fatigue strength of the component has been compared with that of specimen.
한승우(Han, Seung-Woo),노철우(Roh, Cheol-Woo),유무상(Yoo, Mu-Sang),김인철(Kim, In-Chul),주인국(Joo, In-Gouk),김명식(Kim, Myong-Shik) 한국소음진동공학회 2008 한국소음진동공학회 논문집 Vol.18 No.2
This case study refers to turbine-generator with retrofitted turbine rotor. Vibration problem occurring after the retrofit was mainly due to high vibration from exciter side. However, repeated test run and operation during scheduled maintenance caused high vibration from generator bearing, and post-overhaul test run before turbine vibration correction caused oil whip on the bearing. This case study shows how to analyze vibration condition of high turbine generator vibration detected during the post-overhaul test run and vibration condition of offline and online data to reflect it on establishing maintenance schedule and overhaul correction procedure. Vibration data could be acquired during steady load operation or even with varying speed and load. Each data is important for machinery condition evaluation. This case study shows that the vibration data during extreme condition is the key factor in analysis, which helps to find the machinery problem.
상호작용 다중모델-무향 칼만필터 기반 공대공 기관포 정밀 타격 성능 향상 기법에 관한 연구
한승우(Seung-woo Han),김종섭(Chong-sup Kim),고기옥(Gi-oak Koh),고상호(Sang-ho Ko) 한국항공우주학회 2023 韓國航空宇宙學會誌 Vol.51 No.3
본 논문에서는 공대공 근접 교전 상황에서 기관포의 정밀 타격 성능 향상을 위한 신호처리 기법에 관한 연구를 수행한다. 목표 항공기의 상태 추정 시 단일모델을 사용한 경우와 다중모델을 병렬로 사용한 경우 발생하는 추정 오차를 비교하고 분석한다. 결과적으로 상호작용 다중모델 기법과 무향 칼만필터를 활용하여 기동하는 목표 항공기의 상태를 추정한다. 또한 목표 항공기의 정밀 타격을 위한 가상추적점 생성 기법을 제안한다. 가상추적점을 추종하기 위한 비행제어시스템을 구현하고 기관포를 활용한 목표 항공기 정밀 타격 시뮬레이션을 수행하여 임무 수행 능력과 생존성 향상을 확인한다. This paper describes a signal processing technique to improve the precision aiming performance in close range air-to-air combat. We compare and analyze the state estimation error that occurs when a single model is used or multiple models are used parallel. As a result, the state of the target aircraft is estimated using Interactive Multiple Model method and Unscented Kalman Filter. Also a method to generate virtual pursuit point (VPP) for precision aiming is proposed. Finally, the flight control system is designed to pursuit VPP and close range air-to-air pursuit simulation is performed to evaluate the mission performance and viability.