http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
고온 태양열 열화학사이클을 이용한 합성가스 및 수소생산
장종탁(Jang,Jong-Tak),한영규(Han Young-Kyu),윤기준(Yoon Ki-June),한귀영(Han Gui-Young) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11
금속산화물을 이용한 2단계 산화/환원 반응은 GTL, CTL 의 반응원료인 합성가스 및 수소 생산 기술이다. 이 기술은 메탄을 환원제로 사용함으로써 비교적 저온에서 산화/환원 반응을 할 수 있는 장점이 있다. 하지만 반복 사이클의 시연에서 금속산화물의 소결현상으로 인한 활성저하가 이 기술의 문제점 중의 하나이다. 본 연구에서는 2.5 ㎾ Xenon arc lamp 가 설치된 solar simulator 와 inconel 로 제작된 반응기를 사용 하였으며, 기존 논문에 보고되었던 WO₃ 와 우수한 활성이 기대되는 CeO₂ 를 이용하여 반응특성을 알아보았다. 또한, 금속산화물의 소결현상을 억제하기 위해 열적 안정성이 우수한 ZrO₂ 를 금속산화물의 지지체로 사용함으로써 연속적인 합성가스 및 수소 생산 가능성을 알아보았다.
의사결정나무를 이용한 방문학습지사의 고객세분화에 관한 연구
서광규(Seo Kwang-Kyu),오은주(Oh Yeun-Joo),한영규(Han Young-Kyu),심현정(Shim Hyun-Jeong) 한국산학기술학회 2004 한국산학기술학회 학술대회 Vol.- No.-
Due to keen competition among companies, companies have segmented customers and they are trying to offer specially targeted customer by means of the distinguished method. In accordance, data mining techniques are noted as the effective method that extracts useful information. This paper explores customer segmentation of the home study company using data mining. The purposes of this paper are especially competitor churn in the recent home study market, to understand the characteristics of the customer group who are expected churn in case competing companies do aggressive sales promotion. In addition, this paper aims to find the influential factors of their breakaway, and to prepare practical marketing strategy to keep the existing customers. The study of churn in the home study market is conducted and the model using decision tree to predict and select valuable customer. Finally, this paper presents how the results can be incorporated and measured as a part of an overall marketing campaign process.
플라이 애시와 탄산칼슘을 혼입한 투수성 폴리머 콘크리트의 물리ㆍ역학적 특성
성찬용 ( Sung Chan Yong ),한영규 ( Han Young Kyu ) 한국농공학회 1999 韓國農工學會誌 : 전원과 자원 Vol.41 No.2
This study was performed to evaluate the properties of permeable polymer concrete with fly ash and CaCO<sub>3</sub>. The following conclusions are drawn. The static modulus of elasticity is in the range of 1.19×10<sup>5</sup>~1.49×10<sup>5</sup> kgf/㎠, which is approximately 53 ~56% of that of the normal cement concrete. The oisson's number of permeable polymer concrete is in the range of 3.95 ~6.53, which is less than that of the normal cement concrete. The dynamic modulus of elasticity is in the range of 1.29×10<sup>5</sup>~1.59×10<sup>5</sup>kgf/㎠, which is approximately less compared to that of the normal cement of the static modulus. Fly ash 50% and CaCO<sub>3</sub> 50% filled permeable polymer concrete has showed higher dynamic modulus. The water permeability is in the range of 3.971~4.393 ℓ/㎠/h, and it is largely dependent upon the mix design. These concrete can be used to the structures which need water permeability.
유석 ( Seok Yu ),한영규 ( Young Kyu Han ),송미영 ( Mi Young Song ),이명종 ( Myung Jong Lee ) 한방재활의학과학회 2004 한방재활의학과학회지 Vol.14 No.4
Objectives: Spinal deformity caused by variable factor and mild deformity doesn`t influence to cardio-pulmonary function but more deformity progress more problems can occur in cardio-pulmonary function. So we have to concern the problem of cardio-pulmonary function in case of severe spinal deformity. Methods: We used a flexion-distraction Cox technique, Acupuncture, Physical and Herb medicine treatment to the patient who was diagnosed scoliosis with empyema. Results & Conclusions: The results of oriental medicine treatment, Cobb`s angle of T-spine was changed 20° to 15°, that of L-spine was changed 27° to 15° and also all the symptoms of empyema were improved.
Vitrified Glass를 혼입한 콘크리트의 물리ㆍ역학적 특성
민정기 ( Min Jeong Ki ),조일호 ( Cho Il Ho ),남기성 ( Nam Ki Sung ),한영규 ( Han Young Kyu ),성찬용 ( Sung Chan Yong ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-
Over 4.1 billion metric tons of non-hazardous solid wastes are generated in the United States annually. Therefore, there is a need to reuse or reprocess as many products or by-products as possible. In this report, the aggregates produced from Naval Shipyard and Charleston area dredge spoils are designated as NC and DS, respectively. The major objective of this portion was to determine the feasibility of the use of these aggregates in concrete mixtures. According to test results, the unit weight of concrete mixtures containing NC and DS (vitrified glass) was lower than the control mixture, and the control mixture produced higher compressive and bending strength compared to mixtures containing vitrified glass. However the mixtures containing vitrified glass still could be used in the field based on the minimum criteria set for the mix design.