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김석원,정회일,유장렬,Kim, Suk-Won,Chung, Hoe-Il,Liu, Jang-R. 한국식물생명공학회 2006 식물생명공학회지 Vol.33 No.3
식물대사체학은 식물세포, 조직, 기관, 혹은 개체수준에서 주어진 시간과 조건에서 발견되는 모든 대사물질을 밝히고, 시간의 경과 혹은 조건의 변화에 따른 metabolic profiling의 변화를 연구하는 식물학 분야이다. 식물대사체학은 생물에 대한 전체론적 접근을 위한 가장 최근에 발달된 omics분야의 하나로서 일종의 시스템 생물학이다. 전체론적 접근과 이해를 위해서 대사체학은 metabolic profiling의 계량화학 혹은 다변량분석 방법을 자주 사용한다. 식물학분야에서 대사체학은 애기장대나 벼와 같은 모델식물에 tag를 도입하여 형질전환시킨 돌연변이체에 대해 DNA microarray와 함께 사용하여 유전자의 기능을 밝히는데 유용하게 사용된다. 본 총설에서는 식물대사체학의 기본 개념과 1H NMR 혹은 FTIR으로 얻은 metabolic profiling의 다변량분석에 대한 실용적인 사용법을 소개하고자 하였다. Plant metabolomics is a plant biology field for identifying all of the metabolites found in a certain plant cell, tissue, organ, or whole plant in a given time and conditions and for studying changes in metabolic profiling as time goes or conditions change. Metabolomics is one of the most recently developed omics for holistic approach to biology and is a kind of systems biology. For holistic approach, metabolomics frequently uses chemometrics or multivariate statistical analysis of metabolic profillings. In plant biology, metabolomics is useful to determine functions of genes often in combination with DHA microarrays by analyzing tagged mutants of the model plants Arabidopsis and rice. This review paper attempted to introduce basic concepts of metabolomics and practical uses of multivariate statistical analysis of metabolic profiling obtained by $^1$H HMR and Fourier transform infrared spectrometry.
전기식 동력 조향 특성을 고려한 3-자유도 능동 전륜 조향 제어기 설계
김석원(Suk Won Kim),임재민(Jae Min Lim) 한국자동차공학회 2020 한국자동차공학회 학술대회 및 전시회 Vol.2020 No.11
In this paper, we presented the 3-DOF active front wheel steering controller considering Electric Power Steering (EPS) characteristics. In the previous study, we performed 3-DOF active front steering control based on angle control. However, since the actual vehicle has an EPS structure, torque control must be performed together. Therefore, we modeled the EPS system and designed a torque controller with sliding mode control. This active front steering control was designed by using MATLAB/Simulink and its performance was demonstrated by CarSim, a vehicle dynamics program.
기능성 식품의 활성성분 함량에 따른 기능성 보고 모델 구축
김석원(Suk Won Kim),김선조(Sun Jo Kim),Nguyen Hoang Anh,정철운(Cheol Woon Jung),권성원(Sung Won Kwon) 대한약학회 2021 약학회지 Vol.65 No.4
As the market of the functional foods is expanding to general foods, more efficient and accessible methods are required to provide quantitative and scientific evidences. In this study, we conceptualized and established a functional reporting model with logistic regression using the clinical data retrieved from the published literature. The model was validated with two active ingredients, vitamin E and lycopene. A search through PubMed using “tocopherol” or “tocotrienol” or “Vitamin E” as the keywords resulted in 45 data points corresponding to 35 studies in which the antiinflammatory efficacy of vitamin E was evaluated. The other search through PubMed using “lycopene” as a keyword resulted in 39 data points corresponding to 29 studies in which the antioxidant efficacy of lycopene was evaluated. We used C-reactive protein (CRP) or high sensitivity C-reactive protein (hs-CRP) as the inflammatory markers, and DNA damage, lipid, and protein oxidation for the measurement of antioxidant efficacy. According to our model, daily intake of at least 584.05 mg of vitamin E and 17.85 mg of lycopene is recommended to induce the functional effects. In conclusion, we anticipate that this approach to the functional report modeling would greatly expand the market of functional foods, especially for the native crops.