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DNA 마이크로어레이 자료의 PRINT-TIP별 표준화(NORMALIZATION) 방법
이성곤,박태성,강성현,이승연,이용성,Yi Sung-Gon,Park Taesung,Kang Sung Hyun,Lee Seung-Yeaun,Lee Yang Sung 한국통계학회 2005 응용통계연구 Vol.18 No.1
DNA microarray experiments allow us to study expression of thousands of genes simultaneously, Normalization is a process for removing noises occurred during the microarray experiment, Print-tip is regarded as one main sources of noises, In this paper, we review normalization methods most commonly used in the microarray experiments, Especially, we investigate the effects of print-tips through simulated data sets. DNA마이크로어레이 기술은 수천 개 또는 수만 개의 유전자의 발현을 동시에 탐색할 수 있는 새로운 과학 기술이다. 표준화(normalization)는 마이크로어레이 실험에서 다양한 원인에 의해 발생하는 잡음(noise)을 줄이거나 제거하는 과정을 나타낸다. print-tip의 변동은 잡음의 주요 요인으로 인지되어 왔다. 본 논문에서는 잡음의 주요 발생요인이 되는 print-tip의 변동을 조절하기 위한 print-tip 표준화 작업에 대한 객관적인 비교 및 그 타당성 평가를 하였다. 먼저 그동안 제안된 여러 표준화 방법들 중에서 가장 널리 사용되고 있는 방법들을 정리해서 소개한 후에, 잡음이 많이 포함된 실제 cDNA 실험자료를 이용하여 각 표준화 방법의 특성을 비교해 보았다. 또한 실험자료와 유사한 모의분포를 생성한 후에 print-tip 표준화 작업에 대한 체계적인 비교를 해 보았다.
이상점성 처리된 Mg-3, 6wt%Ni합긍의 수소화 특성평가
이성곤,하원,홍태환,김영직,Lee, Sung-Gon,Ha, Won,Hong, Tae-Whan,Kim, Young-Jig 한국재료학회 2002 한국재료학회지 Vol.12 No.12
Magnesium-3, 6wt% Nickel alloys were fabricated by Rotation-Cylinder Method(RCM) in ambient atmosphere. The alloys were divided into two different heat-treating conditions, as-cast and thixotropic treated. Thixotropic heat treatment enhances the separation of primary hydride former of Mg and the catalytic phase of $Mg_2$Ni. Hydrogenation properties of the each alloy were evaluated and compared by PCI(Pressure-Composition Isotherm) measurement. The maximum hydrogen capacity and the reversible capacity of as -cast Mg-6wt% Ni alloy were 5.2wt% and 3.8wt% at 623k, respectively.
수요자 맞춤형 스마트설계 플랫폼 구축을 위한 비즈니스 모델 관점의 사용자 수요인식 조사 및 분석
이민규(Mingyu Lee),이성곤(Seongkon Lee),이욱현(Wookhyun Lee),구기관(Kikwan Koo),한경진(Kyungjin Han),유재경(Jaekyung Yoo),박성준(Sungjoon Park),이유경(Youkyoung Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Discovering users demands is essential for successfully developing a service or product. Users perception and demand play a critical role in developing the Smart Design Platform that is a platform service helping thermal energy-intensive industrial facilities to more efficiently and easily design their products. This study investigates a process and analysis of perception and demands from the two viewpoints: technology providers and consumers who are targeted users of the Smart Design Platform. A preliminary online survey gained a total of 630 potential users’ feedbacks. It will demonstrate sufficient demands for the Smart Design Platform. For an advanced analysis of users’ demands, additional interviews will be conducted with technology providers and consumers.
스마트설계 플랫폼의 비즈니스 모델에 관한 연구 : 비즈니스 모델 혁신 유형 사례 분석
이욱현(Wook-Hyun Lee),이성곤(Seong-Kon Lee),구기관(Ki-Kwan Koo),한경진(Kyung-Jin Han),이민규(Min-Gyu Lee ),유재경(Jae-Kyong Yoo),이민정(Min-Jung Lee),이대근(Dae-Keun Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
An open smart design platform is being developed for industries that consume a lot of heat energy, such as steel, food, and textile industries, in order to promote the spread and diffusion of energy-saving technologies. In this study, we are trying to establish a business model with public interest, openness, scalability, ease of design, reliability and sustainability of platform for the effective dissemination and utilization of demand technologies in the relevant field through the stable operation of a smart design platform for industrial facilities that consume a lot of heat energy. In the process of establishing this business model, we tried to review the existing best practices applicable to the smart design platform and utilize the innovation methods according to the 10 business model innovation types to discover the optimal type. In this paper, we will briefly discuss the contents reviewed in this process.