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신형식 역삼투 복합막을 이용한 해양심층수 담수화 성능평가
홍영기,송경헌,문덕수,김현주,Hong, Young-Ki,Song, Kyung-Hun,Moon, Deok-Soo,Kim, Hyun-Ju 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.6
Asymmetric reverse osmosis(RO) composite membrane, which are organic/inorganic RO composite membranes by new mode, based on cellulose acetate and polyamide with nano particle tourmaline substance in order to develop a new desalination membrane having high selectivity and permeability were prepared. The practical separation performances of new RO composite membranes were investigated on seawater desalinization, especially for deep ocean water. The separation characteristics of new RO composite membranes were discussed with the variation of applied pressure and temperature. The permeation flux of new RO composite membranes was investigated using module unit composed of RO plate-frame type modules and spiral wound type modules. The rejection and the flux for new RO composite membrane were $99.0{\sim}99.3%\;and\;7.0{\sim}23.3l/m^2$ hr in deep ocean water at $20^{\circ}C$, respectively. In addition, the separation performance of new RO composite membranes for deep ocean water was very steady-state with long experiment time.
폴리프로필렌 멜트블로운 공정 변수가 부직포 여과재의 포집 특성에 미치는 영향
홍영기,Hong, Young-Ki 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.5
Meltblown process is one of the major processes for nonwoven filters. In this study, the collection efficiency of meltblown nonwoven filters made of isotatic- polypropylene(i-PP) was examined for the various processing conditions such as die and air temperatures, die-to-collector distance(DCD) and attenuation air flow rate at the die. The collection efficiency for non-woven filter was found to increase with decreasing DCD, with increasing die temperature, or with increasing air flow rate. In addition, the quality factor of non-woven filter was excellent with increasing DCD in meltblown process like this.
홍영기(Young Ki Hong) 한국교육과정학회 1997 교육과정연구 Vol.15 No.2
This study is to understand and describe interdisciplinary faculty members` communication patterns in achieving their goals. This researcher approached this case with a qualitative method and thus. explored themes, patterns, and cases while focusing on understanding of the team teachers` communication patterns and its culture in relation with power. The informants of this case were four 7th grade interdisciplinary teaching team teachers and the school principal at Gretna middle school in the state of Nebraska, U.S.A. The data were collected by team meeting observations, team interviews, artifacts, and field notes. The analysis of group dynamics of the teaching team is based on French and Rayen`s power theory. In so doing, this researcher revealed 1) their communication patterns, 2) leadership, and 3) its small group culture in relation with power. Some suggestions for the team teachers are also included.
근치적 절제술 후 Vater씨 팽대부암의 예후 인자 및 생존율 분석
홍영기(Young Ki Hong),정준(Joon Jeong),박준성(Joon Seong Park),정은주(Eun Joo Jung),이용상(Yong Sang Lee),박영년(Young Nyun Park),윤동섭(Dong Sup Yoon),최진섭(Jin Sup Choi),이우정(Woo Jung Lee),지훈상(Hoon Sang Chi),김병로(Byong Ro 대한외과학회 2004 Annals of Surgical Treatment and Research(ASRT) Vol.66 No.3
2007개정교육과정 "즐거운 생활" 교육과정과 교과서 분석
홍영기 ( Young Ki Hong ) 한국통합교육과정학회 2008 통합교육과정연구 Vol.2 No.2
본 글은 2007개정교육과정 중 `즐거운 생활` 1학년 교육과정은 통합의 관점에서 분석하고 2009년부터 새롭게 적용되는 통합교과서와의 관계와 적용방안을 살펴보았다. 상당한 개선에도 불구하고 2007년 동합교과 개정교육과정 중 `즐거운 생활`과는 여전히 특정 교과 영역을 통합한 형태로 교육과정이 제시되어 있어 구조적인 한계를 극복하지 못한 측면을 발견할 수 있다. 교과서의 편찬이 탈학문적 관점에서 단원이 구성되고 세 개의 통합교과 간 통합단원을 두어 이러한 문제를 보완하고자 했지만 교실현장에서 이를 실천하는 교사의 통합적 안목과 실천력이 중요하다는 점을 제기하였다. 즉, 도입차시의 활용을 통한 교실소재의 발굴과 단원계획, 주제를 중심으로 하는 공동단원의 재구성과 운영, 단원목표에 따른 과정중심의 평가 등 교사의 탈학문적 관점에서 교육과정을 재구성하는 능력이 반드시 필요한 요건으로 대두된다. The purpose of this study is to examine the first grade curriculum of the subject `Enjoyable Life` of the 2007revised national curriculum in the view of curriculum integration. Based on the curriculum examiation, the relations with the textbook which has been developed by `the Korean society for the study of curriculum integration(SSCI)` are also analyzed. In spite of curriculum reformation, there still exists structural issues that the curriculum is established in a way of combination of the particular subject areas. Meantime, SSCI compiles the textbooks which contains integrated units among the three subjects with the transdisciplianry or real-world approach. Above all, teacher`s curriculum reconstruction ability with a standpoint of transdisciplinary approach will be the key to successful curriculum implementation.