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팬데믹 상황에서 예체능 전공 대학생의 온라인 수업에 대한 학업 정서가 학습성과에 미치는 영향
김병민 ( Kim¸ Byung Min ) 한국체육학회 2021 한국체육학회지 Vol.60 No.2
본 연구는 코로나19로 인한 팬데믹 상황에서 온라인 수업을 수강한 예체능 전공 대학생의 학업 정서가 인지된 성취도 및 학습만족도에 미치는 영향을 규명하는 데 그 목적이 있다. 본 연구의 결과 도출을 위하여 수집된 자료는 SPSS 24.0과 AMOS 22.0을 이용하여 처리하였고, 빈도분석, 신뢰도분석, 상관관계 분석, 확인적요인분석, 구조방정식 모형 검증을 실시하였다. 연구 결과는 첫째, 즐거움, 자부심, 지루함 정서와 인지된 성취도에서 유의한 영향 관계를 나타냈다. 둘째, 즐거움과 화 정서는 학습만족도에 유의한 영향을 미치는 것으로 나타났다. 셋째, 인지된 성취도는 학습만족도에 유의한 영향을 미치는 것으로 나타났고, 인지된 성취도는 자부심과 학습만족도와의 관계에서 완전매개효과가 나타났다. 이러한 결과에 따라 학업 정서는 학습성과에 영향을 미치는 주요 변수임을 확인하였고, 학습자의 성취도와 만족도를 높이기 위하여 학생들의 정서를 고려한 체계적이고 전략적인 학습설계 및 교수법 등이 필요하다. 또한 포스트 코로나 이후에도 학생들의 학습성과를 향상하기 위한 다양한 전략이 요구된다. The propose of this study was to investigate the effects learning emotions of college students majoring in arts and sports who took online classes a pandemic situation caused by of COVID-19 on perceived achievement and learning satisfaction. To derive the results of this study, data were processed using SPSS 24.0 and AMOS 22.0, and frequency analysis, reliability analysis, correlation analysis, confirmatory factor analysis, and structural equation model equation model verification were performed. The results of the study were as follows: First, enjoyment, pride, and boredom had a significant effect on perceived achievement. Second, enjoyment and anger had a significant influence on learning satisfaction. Third, perceived achievement effect on learning satisfaction, the perceived achievement showed a complete mediating effect in the relationship between pride and learning satisfaction. Based on these results, it was confirmed learning emotion is a major variable influencing learning outcomes, in order to increase learner achievement and satisfaction, systematic and strategic learning methods that consider students’ emotions are needed. In addition, various strategies are required to improve student learning outcomes even after the post-corona.
Byungmin Lee 서울대학교 교육연구소 2010 Asia Pacific Education Review Vol.11 No.1
This study examines university students' pre-university exposure to extra-curricular English instruction in tutorial or other private supplementary institutions in Korea and abroad. A questionnaire and an in-depth interview were administered to forty-three freshman students enrolled in a foreign language program at a comprehensive university in Korea. This study reports on the key findings in the questionnaire and on the personal language-learning experiences of seven interviewees chosen from the larger sample. The findings reveal that these students had undertaken widely different language instruction outside of school. Some had access to supplemental programs, while others relied completely on language training available in primary and secondary schools in Korea. Those with opportunities for study in venues outside the standard language sequence in Korean schools had significantly higher English proficiency and may affect their performance in their subsequent university-level English program. The paper concludes with the proposals for addressing discrepant English-learning backgrounds in order to remediate the significant differences in English language proficiency that characterize post-secondary programs at Korean universities.
Byungmin Sohn,Bong-Ju Kim,Jun Woo Choi,Seo Hyoung Chang,Jung Hoon Han,Changyoung Kim 한국물리학회 2020 Current Applied Physics Vol.20 No.1
A controversy arose over the interpretation of the recently observed hump features in Hall resistivity ρxy from ultra-thin SrRuO3 (SRO) film; it was initially interpreted to be due to topological Hall effect but was later proposed to be from existence of regions with different anomalous Hall effect (AHE). In order to settle down the issue, we performed Hall effect as well as magneto-optic Kerr-effect measurements on 4 unit cell SRO films. Clear hump features are observed in ρxy, whereas neither hump feature nor double hysteresis loop is seen in the Kerr rotation which should be proportional to the magnetization. In addition, magnetization measurement by superconducting quantum interference device shows no sign of multiple coercive fields. These results show that inhomogeneous AHE alone cannot explain the observed hump behavior in ρxy data. We suggest that emergence of the hump structure in ρxy is closely related to the growth condition.
An Efficient Feature Extraction Method for Facial Images based on Integral Histogram
Byungmin Kim,Sangheon Lee,Myoungkyu Sohn,Jangwoo Lee 한국멀티미디어학회 2011 한국멀티미디어학회 국제학술대회 Vol.2011 No.-
Feature descriptors based in Local Binary Patterns (LBP) are widely used for face recognition and other texture analysis areas because of their simplicity of computation and robustness with respect to illumination. We propose a novel method that dramatically reduces the computation time of LBP feature vectors using an integral histogram. The proposed method can compute a feature vector in constant time by pre-calculating the integral histogram of the entire image area. Moreover, with this method the computation time for feature vectors of different areas and shapes of local regions is the same. In our experiments, we verified that LBP-based face detection speed is greatly improved by applying our approach to LBP face descriptors. In this paper, we present the proposed methods and the application of our approach to face detection; we also discuss our experimental results.
자동차 경량 부품 제조를 위한 Al-Cu-Mg 분말 합금의 소결 및 열처리 특성
안병민(Byungmin Ahn) 한국생산제조학회 2014 한국생산제조학회지 Vol.23 No.2
Lightweight materials such as aluminum and magnesium have recently received much attention in the automotive industries because of environmental and fuel-efficiency concerns. Using the powder metallurgy (PM) process for these materials creates significant opportunities for the cost-effective manufacture of lightweight automotive parts. In the present study, an Al-Cu-Mg alloy was fabricated using conventional PM processes. Primarily, the effects of the alloying elements on the sintering characteristics and mechanical behavior after heat treatment were investigated. A microstructural analysis was performed using an optical microscope and a scanning electron microscope to investigate the behavior of liquid phase sintering, including the formation of precipitates. The dependence of the mechanical behavior on the alloying elements was evaluated based on the transverse rupture strength.
복합센서를 이용한 비접촉 전력 기반 가전기기 식별률 개선에 관한 연구
김병민 ( Byungmin Kim ),윤정미 ( Jungmee Yun ) 한국정보처리학회 2016 한국정보처리학회 학술대회논문집 Vol.23 No.1
비절전 가전기기는 제품수명을 고려할 때 전력을 소비하는 가정 내 가전기기의 대부분을 차지 하지만 에너지 효율 정책의 사각지대에 있다. 본 논문에서는 비절전 가전기기의 에너지 절감을 위해 전력 총량에서 각 가전기기의 상태를 식별하는 NIAUM 의 기기 식별률을 복합센서를 활용해 개선하는 기술에 대해서 소개하고자 한다.
An improved method for predicting interactions between virus and human proteins
Kim, Byungmin,Alguwaizani, Saud,Zhou, Xiang,Huang, De-Shuang,Park, Byunkyu,Han, Kyungsook Imperial College Press 2017 JOURNAL OF BIOINFORMATICS AND COMPUTATIONAL BIOLOG Vol.15 No.1
<P>The interaction of virus proteins with host proteins plays a key role in viral infection and consequent pathogenesis. Many computational methods have been proposed to predict protein-protein interactions (PPIs), but most of the computational methods are intended for PPIs within a species rather than PPIs across different species such as virus-host PPIs. We developed a method that represents key features of virus and human proteins of variable length into a feature vector of fixed length. The key features include the relative frequency of amino acid triplets (RFAT), the frequency difference of amino acid triplets (FDAT) between virus and host proteins, and amino acid composition (AC). We constructed several support vector machine (SVM) models to evaluate our method and to compare our method with others on PPIs between human and two types of viruses: human papillomaviruses (HPV) and hepatitis C virus (HCV). Comparison of our method to others with same datasets of HPV-human PPIs and HCV-human PPIs showed that the performance of our method is significantly higher than others in all performance measures. Using the SVM model with gene ontology (GO) annotations of proteins, we predicted new HPV-human PPIs. We believe our approach will be useful in predicting heterogeneous PPIs.</P>
SSD 시뮬레이터를 이용한 SSD 작업 성능 비교 및 분석
하병민 ( Byungmin Ha ),조현진 ( Hyunjin Cho ),신동군 ( Dongkun Shin ),엄영익 ( Young Ik Eom ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.2
최근 SSD는 빠른 속도와 저전력, 무소음 등의 장점으로 하드디스크를 빠르게 대체하고 있다. 그러나 아직 SSD의 내부 동작 알고리즘이 공개된 바 없으며 SSD의 내부 동작에 대한 설명도 부족하다. 이에 본 논문에서는 실제 SSD에 상반된 패턴을 갖는 작업 부하를 이용하여 성능을 측정하고, SSD 시뮬레이터를 이용하여 측정된 결과를 분석한다.