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오준암(Joonarm Oh),신구용(Koo-yong Shin),고광만(Kwang man Ko) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.7
본 논문에서는 500kV HVDC 자기애자에 대하여 직류전압이 걸려있는 상태와 무전압 상태에서 애자표면의 오손도(ESDD, NSDD)를 측정하고 그 결과를 분석하였다. 따라서 오손등급에 따라 직류전압이 애자 오손에 미치는 영향을 예측 할 수 있으며, 이를 토대로 500kV HVDC 송전선로 애자 설계에 있어 적정한 파라미터가 적용되었는지 검증해 볼 수 있다.
어휘 학습 개입 정도가 한국대학생의 영어 어휘 성취도에 미치는 영향
오준일 ( Junil Oh ) 글로벌영어교육학회(구 호남영어교육학회) 2015 Studies in English education Vol.20 No.2
Recent research on the impact of vocabulary learning involvement on vocabulary achievement has produced mixed findings. Using a self-assessment method to operationalize the construct, this study attempted to examine the relationship between vocabulary learning involvement and vocabulary achievement among Korean learners of English. A total of 63 university students were asked to complete a survey of vocabulary learning involvement and a test of recognition vocabulary. The survey was found to be a reliable and valid tool for measuring subjects’ vocabulary learning involvement in terms of need, search, and evaluation. Multiple regression analyses revealed that the need, search, and evaluation components of vocabulary learning involvement made differential contributions to vocabulary achievement. Need was found to significantly impact vocabulary achievement, whereas search and evaluation failed to have similar effects. Implications of the findings are discussed, and directions for future research are also suggested.
오준일 한국영어교과교육학회 2016 영어교과교육 Vol.15 No.3
This study was designed to address whether learners would more accurately judge the relative frequency of words that are similar in meaning and identical in parts of speech than words that differ in both respects, and whether such judgments would vary according to corpus-based frequency levels of target words and learners’ vocabulary size as measured by a revised version of Nation and Belgar’s (2007) vocabulary levels test. A sample of 38 Korean students learning English at a Korean university were asked to complete the vocabulary levels test and a vocabulary frequency judgment task. Results show that subjects were able to make very accurate judgments of vocabulary frequency. More importantly, t-tests revealed that subjects performed significantly better on similar and high-frequency words than on dissimilar and low-frequency ones. Finally, correlational analyses suggested that subjects’ vocabulary size was not closely related to intuitive vocabulary frequency judgments. Limitations and implications of the study are discussed, and directions for future research are suggested.