Systematic Genome-wide Analysis of Escherichia coli B Proteome

Jaeeun OH,Mee-Jung HAN,Jeong Wook LEE,Jong-Shin YOO,Jihyun F. KIM,Cheol-Goo HUR,Sang Yup LEE,Hongseok YUN 한국생물공학회 2009 한국생물공학회 학술대회 Vol.2009 No.4

Improvement in the Cell Biomass of Clostridium acetobutylicum by Changing the Media Component

Jaeeun OH,Jin Young LEE,Sang Yup LEE,Yu-Sin JANG 한국생물공학회 2009 한국생물공학회 학술대회 Vol.2009 No.4

Non-linear Flux Blanace Analysis of Clostridium acetobutylicum ATCC 824 Using a Genome-scale Model

Jaeeun OH,Hongseok YUN,Joungmin LEE,Sang Yup LEE 한국생물공학회 2009 한국생물공학회 학술대회 Vol.2009 No.4

How Free Choice Activity Mediation Program Affects Development Delayed Child's Social Behavioral Development

OH Sookhyun,Woo Jaeeun 아시아장애사회학회 2014 아시아장애사회학연구 Vol.13 No.-

The research is about how a free choice activity which is mediated by a teacher according to a monthly theme under integrated education system affects development delayed child’s social behavioral development. The subject of this study were three development retarded children (3,4,5 years old) who attended an integrated ciass of B day care center in J eollanamdo. Applying Mutiple baseline design across subjects, I conducted an activity intermediation by a teacher 15 times according to the free choice activity intermediation program and observed every intermediation process. Then, I recorded any changes in children’s behaviors both in written and by a video camera. As a result, it turned out to be true that the free choice activity intermediation program helps development retarded child to improve his/her social behavior in posltlve ways.

텍스트 마이닝을 활용한 4차 산업혁명 기반 교육 연구동향 분석

이재은 ( Jaeeun Lee ),오세경 ( Sekyoung Oh ) 사단법인 아시아문화학술원 2020 인문사회 21 Vol.11 No.6

본 연구는 4차 산업혁명과 연관된 교육 관련 학술 논문의 동향을 분석하고 미래교육이 나아갈 바를 모색하는 것이다. 이를 위해 학술 논문 364편을 수집하였다. 수집된 자료는 R 프로그램을 이용한 텍스트 마이닝 방법을 활용하여 분석하였다. 연구결과는 다음과 같다. 첫째, 키워드 빈도분석 결과, 변화, 기술, 사회, 방향, 대학 등의 키워드가 높게 산출되었다. 둘째, 토픽 모델링 결과, 프로그램, 모형, 교수법 등과 같은 교육의 실제, 인공지능, 코딩 등과 같은 기술적 관점, 시대, 세계, 평생, 미래사회 등의 통합적 관점에 대한 주제 등 4가지 주제로 분류되었다. 셋째, 최다빈출어 간의 연관분석 결과, 기술, 변화, 방향, 목적 등의 키워드가 중심에 위치하여 있었지만 명확하게 군집을 이루지 않았다. 본 연구에서 도출된 결과는 4차 산업혁명 시대에 유연하게 대처할 수 있는 적합한 인재 양성을 위한 교육의 방향을 제시하는 데에 기여할 것이다. This study text-analyzed 364 published academic papers in order to identify recent trends in education related to the 4th industrial revolution. The KONLP package in R program was used to apply text-mining techniques for data analysis. The results were as followed; first, the most frequently appeared words include “Change”, “Technology”, “Convergence”, “University” and “Future”, which suggest higher-education, such as universities should play a critical role in educations during the 4th industrial revolution. Second, the topic modeling suggests that educational practice such as program and didactics, technological perspectives such as AI and coding, and integrated views including world or future society, were 4 major themes discussed in the paper. Third, the association analysis suggests that researches about education in 4th industrial revolution were not yet accumulated and classified enough. The findings in this article could contribute to suggest educational directions for talent training in this new era.

융합인재교육(STEAM)의 중등 음악수업 적용 및 사례연구

오지향(Oh,Jihyang),정재은(Jeong, Jaeeun),강선영(Kang, Sunyoung),하명진(Ha, Myeongjin) 학습자중심교과교육학회 2014 학습자중심교과교육연구 Vol.14 No.1

본 연구는 음악을중심으로 다른교과와의 연계를통해 다른영역에대한이해를돕고동시에음악적지식과음악활동경험의 심화를 통하여 학생들의 창의적이고 융합적인 능력을 키울수 있도록 융합인재교육(STEAM)을 중등음악수업에 적용하고자 하였다. 이를 위하여 STEAM의 중등교육에의 적용 및 음악교육에의 적용을 중심으로 이론적 고찰을 수행 하였으며,이를 바탕으로 음악중심 융합 수업의 구성 및 방향을 제시 하였다.또한,수업의 구성 및방향을구체화하기 위하여 중학교와 고등학교 음악수업의 실제적용사례를 제시함으로써 음악을중심으로 한 융합인재교육(STEAM)의 가능성을 모색하고자 하였다 The purpose of this study is to apply and suggest the examples of STEAM in secondary music education. To accomplish this purpose, this study is divided into three parts: STEAM and music education, the direction of construction and suggestion of the model of STEAM in Music, and lesson plan for middle and high school music classroom. First of all, preceding research was analyzed for offering the logical basis for this study. STEAM and the case of applying STEAM to music education was examined and investigation of STEAM focused on the National Curriculum was followed. Then the direction of construction and suggestion of the model of STEAM in music was demonstrated. The model of STEAM in music are emphasized on presentation of situation, creative design, emotional experience. Finally, lesson plans for middle school and high school music class were demonstrated for seeking the possibility of STEAM focused on music.

GPS Trajectory Data 기반 통행비용함수 보정방안

정재은(JUNG, Jaeeun),오태호(OH, Taeho),김인희(KIM, Inhi) 대한교통학회 2021 대한교통학회지 Vol.39 No.4

본 연구는 장래교통수요 예측 기법의 4단계 추정법 중 마지막인 통행배정 결과에 가장 밀접한 통행비용함수(Volume delay function, VDF)의 정확한 정산방안을 제시하였다. 그간 VDF를 기반으로 가상환경 안의 교통 네트워크에 거시적 교통흐름을 할당하여 각 링크에서 계산되어지는 통행시간을 이용하여 통행을 배정하였다. 통행시간을 기반으로 할당된 교통량은 실제 교통량과 비교해서 그 오차를 줄이는 정산작업을 수반한다. 해외 선진국은 여러 가지 최적화기법을 통하여 각 지역의 교통특성을 잘 반영하도록 정산작업을 하고 있으나 우리나라는 KTDB에서 제공하는 획일화된 계수값들을 사용하고 있는 실정이다. 정해진 VDF 상관계수값은 지역별로 다른 통행행태를 제대로 반영하지 못하고 이로 인해 부정확한 장래교통수요를 수행하고 있다. 따라서 본 연구는 이러한 점을 극복하고자 GPS 궤적데이터(Trajectory data)를 활용하여 지역 내 도로위계에 따라 최적의 값을 정산하는 방법론을 개발하였다. 개발된 알고리즘을 연속류와 단속류에 적용하고 효과평가를 위해 평균제곱근오차(Root Mean Square Error, RMSE)를 활용하였다. 그 결과, 연속류는 GPS기반 속도와 시뮬레이션기반 속도 간의 평균제곱근오차는 약 9.67이나, 단속류는 38.38로 상대적으로 높았다. 이는, 교통신호와 같은 통행에 영향을 주는 요소가 단속류에서 고려되지 않았기 때문으로 판단된다. 향후에는 이를 고려하여 단속류 구간을 세분화하여 통행속도 보정을 위한 VDF 상관계수 값 도출 필요할 것으로 판단된다. This study proposed a method for accurate calibration of the volume delay function (VDF), which has the effect on the result of traffic assignment. As it is the last step of the traditional four step model for traffic demand prediction. Through the VDF, macroscopic traffic flow is allocated to the traffic network in the virtual environment using the travel time calculated at each link. The traffic volume calculated based on the travel time brings a calibration task that reduces the error compared to the actual traffic volume. Many developed countries are performing calibration task to reflect the traffic characteristics of each region through various optimization techniques, but Korea has been using uniform coefficient values provided by KTDB. The determined value of the VDF correlation coefficient does not properly reflect the different traffic behaviors by region, and this leads to inaccurate future traffic demand. Therefore, in order to overcome this point, this study developed a methodology to calculate the optimal value according to the road hierarchy in the region using GPS trajectory data. The developed algorithm was applied to interrupted flow and continuous flow, and Root Mean Square Error (RMSE) was used for effect evaluation. As a result, the RMSE between the GPS-based speed and the simulation-based speed for interrupted flow was higher than continuous flow. It was 38.38 and 9.67, respectively. This is because factors, such as traffic signals and localized driving behavior are not considered in the interrupted flow. In the future, it is necessary considered diverse factors at interrupted flow to derive the value of the VDF correlation coefficient to get accurate travel speed.

Causes of Positive Pretransplant Crossmatches in the Absence of Donor-Specific Anti-Human Leukocyte Antigen Antibodies: A Single-Center Experience

Kang Hyunhye,Yoo Jaeeun,Lee Sang-Yoon,Oh Eun-Jee 대한진단검사의학회 2021 Annals of Laboratory Medicine Vol.41 No.4

Pretransplant crossmatch (XM) testing is widely used for detecting preformed donor-specific antibodies (DSAs) against human leukocyte antigen (HLA). However, in some cases, there is a positive XM result in the absence of HLA-DSAs, the cause of which was rarely identified. We reviewed the causes of sequential positive XM results at a single center and analyzed the presence of non-HLA antibodies in patients with an unexplained positive pretransplant XM result. Among 251 patients with T-cell/B-cell complement-dependent cytotoxicity (CDC) or flow cytometric crossmatch (FCXM) positivity, HLA-DSAs were confirmed in 88 (35.1%) by a single antigen bead (SAB) assay, 150 (59.8%) used rituximab (anti-CD20), and 13 (5.2%) had neither HLA-DSAs nor a desensitization history. Anti-angiotensin II type 1 receptor IgG and 33 non-HLA antibodies were tested in the 13 patients with an unexplained positive pretransplant XM result, and more than one non-HLA antibody were revealed in all these patients; 11 patients had non-HLA antibodies reported to be associated with graft rejection, and two patients experienced rejection episode after kidney transplantation. Our study suggests considering non-HLA antibodies testing when a CDC or FCXM test is positive without a definite cause. Assessing non-HLA antibodies might be useful for interpreting XM results and evaluating immunologic risk in transplant recipients.

Enumeration of CD34-positive Stem Cells Using the ADAMII Image-based Fluorescence Cell Counter

Yu, Haein,Yoo, Jaeeun,Hwang, Jung Sil,Kim, Mikyung,Bae, Kyung Hee,Jekarl, Dong Wook,Oh, Jong Hyun,Lee, Ji Yeon,Han, Sunmi,Chung, Chanil,Kim, Myungshin,Kim, Yonggoo Korean Society for Laboratory Medicine (KAMJE) 2019 Annals of Laboratory Medicine Vol.39 No.4

Kickback 보상을 위한 EPS 제어방법에 관한 연구

김재구(Jaegoo Kim),이재은(Jaeeun Lee),김승현(Seunghyun Kim),오준남(Junnam Oh) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-

The signal characteristic of external force from road wheel is faster and wider than that of driver torque and electric actuator torque. This paper presents a new control strategy for enhancing steering performance by kickback compensation. Firstly, the enhanced speed estimator is designed for improving the torque control performance. And adaptive algorithm is suggested for making compensator consider road condition.