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유류로 오염된 토양 복원을 위한 토양가스추출 및 세척공정의 현장적용 연구
고석오,권수열,유희찬,강희만,이주광,Ko. Seok-Oh,Kwon. Soo-Youl,Yoo. Hee-Chan,Kang. Hee-Man,Lee. Ju-Goang 한국방재학회 2001 한국방재학회논문집 Vol.1 No.3
현재 운영중인 주유소를 대상으로 토양 및 지하수 오염 정도를 조사하였고 오염물 제거를 위한 물리 화학적 복원기술 적용성에 대한 연구를 실시하였다. 현장의 토양이나 지하수는 국지적으로 차이가 있었으나 토양오염 대책기준을 초과하여 토양층에 유동성 (Free Liquid) 상태의 유류가 존재할 정도로 상당히 오염되어 있다는 것을 확인하였다. 유류 오염 토양에 pilot scale 규모의 토양세척법과 토양가스추출법 (SVE)을 설치하여 운전하였다. 토양세척법의 경우 계면활성제인 Tween80 용액을 주입 한 후 하부에서 추출된 유출수내의 오염물질의 농도를 측정한 결과 용해도 증가에 의하여 TPH 농도의 증가는 약 10배에 이르는 것으로 조사되었으나 유류 유동성의 증가는 관측되지 않았다. SVE법의 경우 추출 1일 경과 후 BTEX와 TPH에 대하여 각각 4kg/day 및 90 kg/day의 최대 제거효율을 보였으며 추출이 지속됨에 따라 제거율이 감소하였다. SVE공정의 효과적 운영을 위하여는 지하수위의 높이에 대한 고려와 오염물의 휘발화 (volatilization)와 추출속도의 평형화를 위한 조절이 필요할 것으로 판단된다. Field investigations for subsurface soil and groundwater at a gas station showed that the site was severely contaminated and even petroleum compounds as free liquid state were observed. Pilot-scale soil flushing and soil vapor extraction process(SVE) were applied to evaluate the effectiveness of pollutants removal. Surfactant solution, Tween 80, was used to enhance the solubility of petroleum compounds and resulted in about 10 times increase on TPH(Total Petroleum Hydrocarbon) concentration. As for SVE method, maximum concentration of TPH and BTEX reached within 24 hours of extraction and then continuously decreased. Considerations on the groundwater level and the kinetic limitation for volatilization of contaminants have to be taken into account for the effective application of SVE process.
박국남(Kook-Nam Park),고영철(Young-Cheol Ko),우상익(Sang-Ik Wu),오수열(Soo-Youl Oh),이두정(Doo-Jeong Lee) 한국산업경영시스템학회 2011 한국산업경영시스템학회지 Vol.34 No.4
The Project of Jordan Research and Training Reactor (JRTR) officially launched in Aug. 2010. JRTR is the first made-in-Korea nuclear system to be built abroad by year 2015, and Korea Atomic Energy Research Institute (KAERI) is responsible for the design of major systems including the reactor core. While the PDCS (Project Document Control System) being operated by EPC company controls all the documents of the whole Project, KAERI is supposed to have its own system for KAERI documents. Meeting such a need, KAERI has implemented a document control for the JRTR Project into already existing ANSIM (KAERI Advanced Nuclear Safety Information Management) system. The documents of JRTR project to be controlled are defined in the PPM (Project Procedures Manual), QAP (Quality Assurance Procedure) and PEP (Project Execution Program). The ANSIM consists of the document management holder, document container holder and organization management holder. The document management holder, which is the most important part of ANSIM-JRTR, consists of the DDA (Document Distribution for Agreement), IOC (Inter-office Correspondence), PM Memo. (Project Manager Memorandum) and cover sheets of design documents. Other materials such as meeting minutes, sub-department materials and design information materials are stored in an independent COP (Community of Practice). This established computerized document control system, ANSIM, could lessen a burden for project management team and enhance the productivity as well.
박국남(Kook-Nam Park),김권호(Kwon-Ho Kim),김준연(Jun-Yeon Kim),우상익(Sang-ik Wu),오수열(Soo-Youl Oh) 한국산업경영시스템학회 2013 한국산업경영시스템학회지 Vol.36 No.4
A document control system (DCS), ANSIM (KAERI Advanced Nuclear Safety Information Management) was designed for the purpose of documents preparation, review, and approvement for JRTR (Jordan Research and Training Reactor) project. The ANSIM system consists of a document management, document container, project management, organization management, and EPC (Engineering, Procurement and Construction) document folder. The document container folder run after specific contents, a revision history of the design documents and drawings are issued in KAERI. The EPC document work-scope is a registry for incoming documents in ANSIM, the assignment of a manager or charger, document review, preparing and outgoing PM memorandum as attached the reviewed paper. On the other hand, KAERI is aiming another extra network server for the NRR (New Research Reactor) by the end of this year. In conclusion, it is the first, computation system of DCS that provides document form, document number, and approval line. Second, ANSIM increases the productivity of performance that can be recognized the document work-flow of oneself and all participants. Finally, a plenty of experience and knowledge of nuclear technology can be transmitted to next generation for the design, manufacturing, testing, installation, and commissioning. Though this, ANSIM is expected to allow the export of a knowledge and information system as well as a research reactor.
일반화된 세선화 template의 중간층 노드의 축소에 관한 연구
방상원,정병수,오수열 木浦大學校 情報産業硏究所 1994 情報産業硏究誌 Vol.2 No.-
다층 퍼셉트론은 우수한 일반화 성능과 구현의 용이함 때문에 많은 문제에 사용되고 있다. 다층 퍼셉트론에서 사용되는 중간층 노드의 수는 적용되는 문제에 따라 달라지므로 문제의 복잡도에 따라 적정한 수의 중간층 노드를 설정하여야 한다. 그러나 적정한 수의 중간층 노드의 수를 학습을 시작하기 전에 미리 알아내는 것이 어려우므로 충분히 많은 중간층 노드를 사용하여 학습하다가 학습이 종료된 후에 불필요한 노드를 찾아내어 제거하는 방법을 일반적으로 이용한다. 본 논문에서는 이 문제를 다층 퍼셉트론을 이용하여 일반화된 세선화 template를 추출하는 실험에 적용하여 실험하였다. Multi-layer perceptron is used in many problem because its generalization performance is good and implementation is easy. The number of hidden node is different according to complexity of applied problem, so we must set suitable hidden node. But it is difficult that know suitable number of hidden node before learning, therefore, hidden node is reduced after learning. In this paper, node reduction algorithm is simulated on Generalized Template Matching (GTM) problem and optimized GTM is obtained.
Isatin α - chloride 를 이용한 지시약용 염료
오세화,전근,박수열,박희문,박명순 한국공업화학회 2000 응용화학 Vol.4 No.2
The indigoid-type dyes based on isatin α-chloride were synthesized and the dyes were discussed with relevance to the "H-chromophore" or "cross-conjugated chromophore." The colour-changed properties of the dyes were also investigated by means of visible absorption spectroscope. The novel dyes from isatin α-chloride are of theoretical interest and such dyes can be used as continuous pH indicators in acid/base titrimetric analyses or redox indicator in their specific behaviour.
Colour Change Redox Behaviour of the 1,3-Squaraine Dyes
Park, Soo-Youl,Oh, Sew-Wha,Griffiths, J. 한국공업화학회 2002 응용화학 Vol.6 No.1
The 1,3-bis(4-aminoaryl)squaraines showed colour change behaviour, they were found to undergo reduction with sodium borohydride in solution to give colourless leuco compounds, which oxidised readily in air back to the coloured squaraine dye.We have investigated this possibility, and have found that reduction can, in most cases, be achieved readily in organic solvents with sodium borohydride, and moreover, the resultant colourless reduced species (leuco dyes) are generally chemically stable and can be oxidised back to the coloured dye with air or common inorganic oxidants. This meant that the 1,3-squaraines could be used as redox indicators, with possible functional applications in enzyme assays, oxygen detection, or reprographic systems, and thus the chemistry of the leuco-1,3-squaraines was investigated in detail in order to determines their potential value in such areas.