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.

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.

The pre-university English-educational background of college freshmen in a foreign language program: a tale of diverse private education and English proficiency

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.

Asiatic Motifs and Korean Identity Inherent in Korean Myths: Wolf, Serpent, and Bird

Byungmin AN The Academy of Korean Studies 2021 THE REVIEW OF KOREAN STUDIES Vol.24 No.2

Hump-like structure in Hall signal from ultra-thin SrRuO3 films without inhomogeneous anomalous Hall effec

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.

문화환경 취약지역 지원을 위한 기준 설정 및 정책 모델화

이병민(Byungmin Lee) 대한지리학회 2021 대한지리학회지 Vol.56 No.6

다양한 노력에도 불구하고 수도권과 비수도권의 격차는 더욱 심화되고 있으며, 특히 코로나 바이러스 등으로 인한 환경변화에 따라 삶의 질과 문화가 중요해짐에 따라 문화환경 취약지역에 대해 문화향유 기회를 보장하려는 정책적 지원의 중요성은 더욱 커지고 있다. 본 논문은 기존의 성장촉진지역 등 인프라와 기반시설 위주의 기존 지표에서 나아가 수요기반, 삶의 질 고려와 함께, 생태・문화・사회・정치・경제 등 다양한 특성을 고려하여 문화환경 취약지역에 대한 지원의 기준설정을 마련하고자 논리적 정당성을 찾으려 노력하였다. 단계별 유형화와 문화적 특성을 고려하여, 맞춤형 지원 방안을 마련하고자 문화적인 수요와 공급의 불균형, 문화적 수요와 공급의 평균 이하 취약지역에 대한 고려요인들에 대한 지표를 분석하고, 문화환경 취약지역 정책지원의 모델화를 시도해 보았다. 기존에 산발적으로 흩어져있던 다양한 사업들의 정리를 통해 기준을 설정하고, 구체적으로는 주민 중심의 거버넌스 체계마련 및 자생력의 확보, 질적인 일자리 창출, 실질적인 지역 정착제도 마련, 문화적 역량 강화를 위한 맞춤형 프로그램 지원, 문화적 접근성의 상대적인 완화 등 수요와 공급을 함께 고려한 균형적인 정책적 제언을 제시했다. Despite various efforts, the gap between the Seoul metropolitan area and the non-Seoul metropolitan area is getting worse, and the importance of policy support to guarantee cultural enjoyment of the cultural environment is growing as the quality and culture of life becomes more important, especially due to environmental changes caused by corona virus. This paper goes beyond the existing indicators centered on infrastructure such as growth promotion areas, and considers demand-based, quality of life, and various ecological, cultural, social, political and economical characteristics of areas vulnerable to cultural environment. In order to come up with customized support measures in consideration of step-by-step categorization and cultural characteristics, efforts were made to find the logical justification of the support system. This paper analyze indicators of factors to consider for cultural imbalances in supply and demand, cultural demand and supply below the average for vulnerable areas, and tried to model the policy support system for the vulnerable areas of the cultural environment. Through the standards-specific arrangement of various existing sporadically scattered projects, this paper have established policy standards and specifically presented balanced policy suggestions that take into account both supply and demand, such as securing resident-centered governance systems and self-reliance, creating qualitative jobs, establishing practical regional settlement systems, supporting customized programs for cultural capacity building, and relative easing of cultural accessibility.

NAND 플래시 메모리 기반 SSD에서의 블록 파편화 문제에 관한 연구

하병민(Byungmin Ha),조현진(Hyunjin Cho),엄영익(Young Ik Eom) 한국정보과학회 2010 한국정보과학회 학술발표논문집 Vol.37 No.1A

최근 낸드 플래시 메모리를 이용한 SSD(Solid State Disk)는 차세대 저장 매체로서 주목받고 있다. SSD의 성능을 높이기 위해 다양한 기술이 연구되고 있지만, 그 중 병렬성 향상 기법이 성능에 가장 큰 영향을 미치고 있다. 이에 따라 SSD에서는 병렬성 향상을 위해 논리 주소 스트라이핑(Striping)을 사용하고 있다. 논리 주소 스트라이핑을 이용하면 병렬성이 크게 증가되지만 매핑 기법에 따라 블록 활용률에 문제점이 발생할 수 있다. 본 논문에서는 논리 주소 스트라이핑 기법과 하이브리드 매핑 기법이 동시에 SSD에 적용되었을 때 발생하는 블록 파편화 문제를 확인하고, 블록 파편화 문제가 블록 활용률과 성능에 미치는 영향을 분석하였다.

Evolution of electronic band reconstruction in thickness‑controlled perovskite SrRuO3 thin films

Sohn Byungmin,Kim Changyoung 한국물리학회 2022 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.81 No.12

Transition metal perovskite oxides display a variety of emergent phenomena which are tunable by tailoring the oxygen octahedral rotation. SrRuO3, a ferromagnetic perovskite oxide, is well known to have various atomic structures and octahedral rotations when grown as thin flms. However, how the electronic structure changes with the flm thickness has been hardly studied. Here, using angle-resolved photoemission spectroscopy and electron difraction techniques, we study the electronic structure of SrRuO3 thin flms as a function of the flm thickness. Diferent reconstructed electronic structures and spectral weights are observed for flms with various thicknesses. We suggest that octahedral rotations on the surface can be qualitatively estimated via comparison of intensities of diferent bands. Our observation and methodology shed light on how structural variation and transition may be understood in terms of photoemission spectroscopy data.

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.