추가된 분절이 네온 색 확산 현상에 미치는 효과

정우현,차한님 忠北大學校 社會大 社會科學硏究所 2012 사회과학연구 Vol.29 No.1

추가된 분절의 색과 길이가 네온 색 확산에 미치는 효과를 알아보기 위한 연구를 수행하였다. 정우현과 이일우(2010)의 연구에서 사용된 네온 색 확산 자극의 일부를 변형하여 배경이 회색인 자극을 실험에 사용하였다. 추가된 분절의 색은 세 수준으로 흰색, 녹색, 검은색이었다. 추가된 분절의 길이는 네 수준으로 구성되었으며 시각(visual angle)으로는 각각 0.05º, 0.66º, 1.32º, 1.93º 이었다. 무작위로 선별된 두 개의 자 과제 수행결과 추가된 분절의 색이 검은색이면 네온 색 확산이 약해지 고 추가된 분절의 색이 흰색이거나 녹색이면 네온 색 확산이 강하게 지각되었다. 이러한 결과는 배경의 밝기와 추가된 분절의 밝기가 네온 색 확산에 중요한 역할을 할 가능성을 시사한다. 실험 결과 추가된 분 절의 길이가 시각 1º보다 길면 네온 색 확산이 감소하는 것으로 나타났 다. 연결성이 위배되는 경우에 주관적 윤곽이 뚜렷해짐과 동시에 색 확 산이 감소하는데 분절의 추가는 연결성의 위배되는 조건과 일치한다. 본 연구 결과는 네온 색 확산 자극의 연결성이 위배되었다고 지각되기 위해서는 추가되는 분절이 어느 정도의 길이를 유지해야하며 이 기준 이 약 1º 정도일 가능성을 시사한다.

이산화탄소-물 공전해 파일럿 시스템의 운전 결과 및 철강산업 적용을 위한 격상설계

정우현,홍기훈,권인구 한국공업화학회 2022 한국공업화학회 연구논문 초록집 Vol.2022 No.-

무회분탄 석탄가스화의 산화제 최적 공급조건 도출을 위한 전산해석

정우현,이재만,윤성필,정석우 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1

석탄을 전처리하여 회분을 200 ppm 수준까지 제거한 무회분탄을 이용하는 고효율 발전기술 개발을 진행하고 있다. 그중에서도 무회분탄을 가스화하는 경우는 동일 일반 미분탄 공급량 대비 양질의 합성가스를 얻을 수 있고, 가스화기 후단의 합성가스 정제설비를 최소로 구성 할 수 있는 장점이 있다. 무회분탄은 전처리 과정에서 회분뿐만 아니라 수분, 황 등이 적어져 발열량이 높아져 있으므로, 동일한 일반 미분탄을 공급량 대비 산화제 공급량 비율이 증가하게 된다. 본 연구에서는 고등기술연구원에서 보유한 3톤/일급 분류층 가스화기에 무회분탄을 공급하여 가스화 특성을 파악하는 운전 실험을 진행하기에 앞서, 산화제 공급량을 무회분탄 공급량 대비 1.0~1.4 범위에서 변경시키는 경우에 합성가스 조성과 생성 유량의 변화를 전산해석 방법을 적용하여 확인하였다. 이를 통하여 무회분탄 가스화에 필요한 최적의 산화제 공급량 조건을 도출 하였으며, 실제 가스화 운전 실험에 기본 공급 조건으로 활용할 예정이다.

Native and nonnative strategies of encouragement in English interaction

정우현 팬코리아영어교육학회 2010 영어교육연구 Vol.22 No.2

This study aims to investigate how English speakers and Korean EFL learners employ strategies of encouragement in communication. In order to collect data, it used the Discourse Completion Task. A total of 194 students participated in this study. From the data analysis, fifteen categories were identified which made up the speech act of encouragement. The results also showed that both native and nonnative speakers varied in their strategies of encouragement in different contexts: The native speakers employed the categories of assuring and being implicit more frequently than the nonnative speakers, whereas the latter speaker group tended to rely on cheering up, worrying, and sympathizing more heavily than the former. It further found different facets of pragmatic failure: (a) a language expression which is present in English, but whose form and meaning are totally different from native speaker use; (b) an expression which is absent in English but whose meaning is approximate to English intended meaning; (c) an expression which is present in English but is not appropriate to a given situation; (d) an expression which is neither present in English nor appropriate to a given situation but whose meaning is approximate to English intended meaning; and (e) an expression which is hard to interpret. On the basis of these results, suggestions are made for enhancing pragmatic competence in L2 acquisition.

Meanings of communicative competence in different learning contexts

정우현 한국영어어문교육학회 2010 영어어문교육 Vol.16 No.4

This study surveyed L2 learners’ needs for different components of communicative competence. It aimed to determine what abilities the learners strongly need to achieve communicative competence in different learning contexts. It also examined gender differences in the learners’ need for phonological competence. A total of 359 students participated in this study, divided into three learner groups: high school, vocational college, and university students. The data were collected via a questionnaire, which was based on Bachman’s (1990) framework of language competence. The study drew some important findings: (a) The vocational trainees expressed a stronger need for illocutionary competence than the high school students and for sociolinguistic competence than the high school and the university groups; (b) The high school and the university groups equated grammatical, textual, illocutionary, and strategic competences in their needs with lesser attention to sociolinguistic competence; (c) To the high school and the university groups, pragmatic competence was assessed higher than organizational competence; (d) Female students showed greater sensitivity to pronunciation ability than did male students. On the basis of these results, pedagogical implications are discussed, along with some helpful suggestions.

Adjective Ordering: Contrastive Analysis and Interlanguage

정우현 한국영어어문교육학회 2009 영어어문교육 Vol.15 No.2

This paper deals with contrastive analysis and interlanguage with respect to adjective ordering. It aimed to investigate how similar and different the orders of descriptive adjectives are in English and Korean, and how Korean EFL learners perceive the sequences of English descriptive adjectives. Data were collected from native English speakers and native Korean speakers and Korean EFL learners. The contrastive analysis showed that the order of English adjectives was size, opinion, condition, age, color, shape, material, and origin, whereas the Korean order was condition, age, opinion, color, size, shape, material, and origin. The relative order of the interlanguage was shown to be age, size, opinion, shape, condition, color, origin, and material, with the exceptions of the order of condition preceding age and that of size being the same position as condition. The interlanguage data manifested different aspects of ordering when compared with English and Korean: Some adjective combinations were similar to both English and Korean; Some were different from English or Korean; Some were different from both English and Korean. These ordering patterns are discussed in terms of such principles as the nouniness principle, the subjectivity/objectivity principle, the iconic principle, etc. On the basis of these results, some helpful suggestions are made.

L2 Learners’ Comprehension of Conversational Implicatures

정우현 한국영어교과교육학회 2019 영어교과교육 Vol.18 No.3

This study delves into Korean vocational college and university students’ comprehension of conversational implicatures in terms of perceived and actual difficulty. For this purpose, the study employs an implicature test. The participants are 126 vocational college students and 121 university students. The analysis demonstrates that conversational implicatures were more difficult for the vocational college students to comprehend than they were for the university students and that indirect criticism proved the most troublesome type of implicature for the two learner groups. The findings further show that the college group had a higher level of perceived difficulty with all five types of implicatures than the university group, whereas the former group had a higher level of actual test performance difficulty than the latter group, especially with relevance, POPE-Q, and Minimum Requirement Rule implicatures. Correlation analyses indicate that the learners’ perceived difficulty was not always in consonance with their actual difficulty. On the basis of the results, the study provides helpful suggestions to help the learners improve their comprehension of conversational implicatures.

철강 산업 적용을 위한 공전해 기술 개발

정우현 한국공업화학회 2023 한국공업화학회 연구논문 초록집 Vol.2023 No.0

가정과 인격형성

정우현 새가정사 1972 새가정 Vol.- No.-

예혼합 연소기 시스템을 적용한 직접 접촉식 증기 발생 장치 개발 및 시운전 결과

정우현,권인구,정기진,정석우 한국공업화학회 2023 한국공업화학회 연구논문 초록집 Vol.2023 No.0