브랜드네이밍에서의 스마트네이밍화에 관한 연구 : 타이포그래피를 중심으로

안지은(Jieun Ahn),조정찬(Jeongchan Jo),오승환(Seunghwan Oh) 한국HCI학회 2005 한국HCI학회 학술대회 Vol.2005 No.1

술폰화 폴리술폰을 이용한 직접 메탄올 연료전지의 고온 운전

안지은 ( Jieun Ahn ),김현종 ( Hyun Jong Kim ),설용건 ( Yong Gun Shul ),한학수 ( Haksoo Han ) 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.1

비원어민 영어 화자 교수진의 영어매개강의에 대한 경험과 인식: 포커스 그룹 연구

안지은(Jieun Ahn) 한국응용언어학회 2024 응용 언어학 Vol.40 No.2

This qualitative study employed a focus group methodology to explore the experiences and perceptions of English-medium instruction(EMI) among non-native English-speaking Korean professors. Nineteen Korean professors, specializing in social sciences(business, economics, or political science), participated in a focus group interview. They held Ph.D. degrees from English-speaking countries and shared experiences of EMI. During the focus group discussions, they reported that the advantage of EMI was their ability to convey professional knowledge in English, which was the language in which they acquired it. However, they also expressed that EMI lectures made them feel nervous, particularly due to discomfort with unexpected, spontaneous questions. Key challenges identified included limited interactions with students, a lack of jokes during lectures, and the students’ varying levels of English proficiency. To enhance EMI effectiveness, the participants recommended policies that tailor EMI course assignments based on professors language backgrounds and offer incentives for participating in professional development programs related to EMI.

BERT Fine-tuning을 활용한 Clock Domain Crossing 분석 방법

안지은(Jieun Ahn),김재준(Jae-Joon Kim) 대한전자공학회 2024 대한전자공학회 학술대회 Vol.2024 No.6

Fine-tuning transformer based language models has proven to be effective across diverse domains in sentence-level tasks. In this paper, we present evaluating bidirectional encoder representations from transformers (BERT) in clock domain crossing (CDC) analysis. Meta-stability, which is one of main CDC issues, occurs between asynchronous clock domains in digital sequential logic, making its analysis more complex in full chip design. We demonstrate CDC bug can be automatically detected by fine-tuning BERT. We fine-tune pre-trained BERT on collected waivers and augmented bugs reported in block level. Our results show that supervised finetuning in BERT yields 97.14% recall rate in bug detection within the target domain. We also show that data augmentation and balancing offers large improvement in supervised finetuning BERT for bug classification.

예비교사들의 과학 교사 정체성 형성 -생명과학 탐구 수업 시연 및 반성 과정을 중심으로-

안지은 ( Jieun An ),김희백 ( Heui-baik Kim ) 한국과학교육학회 2021 한국과학교육학회지 Vol.41 No.6

본 연구에서는 중등 예비과학교사들이 수업 시연 강좌에 참여하면서 어떠한 정체성을 드러내는지 탐색하고자 하였다. 연구 대상은 서울 소재 사범대학의 ‘탐구학습과 생명과학실험 지도’ 강좌를 수강하는 예비과학교사 22명이다. 연구를 위하여 예비교사들의 탐구 수업설계 및 시연 과정에서 만들어진 모든 자료를 수집하였고, 수업 시연 및 반성 장면을 녹화 및 전사하였다. 또한, 수업 후에 9명의 예비교사를 대상으로 반구조화된 면담을 실시하고 녹음 및 전사하였다. 연구결과, 강좌 초반에는 과학 교사 정체성이 잘 드러나지 않았다. 예비교사들의 초기 구두 반성에서는 권위적 담화가 나타났으며, 이는 예비교사들이 구두 반성 활동을 ‘시연된 수업에 대한 평가 활동’으로 인식하고 있음을 보여준다. 이러한 인식은 예비교사들이 대학교에 재학하는 학생으로서 과제를 수행하고 교수자에게 평가를 받는 입장으로 수업 시연 강좌에 참여함을 보여준다. 강좌 중반부 이후, 예비교사들의 과학 교사 정체성을 보여주는 담화가 관찰되었다. 중반부 이후 구두 반성에서는 종종 대화적 담화가 이루어졌으며, 이는 예비교사들이 구두 반성 활동을 ‘전문성 신장을 위한 배움 활동’으로 인식함을 보여준다. 또한 후반부에는 자신의 경험을 교사의 활동과 연결 짓고 해석하는 담화가 나타났다. 이는 예비교사들이 이 순간 자기 자신을 교사로서 인식함을 보여준다. 또한 강좌를 통해 실험 수업에 대한 인식이 확장되었다. 강좌 내에서 참여자들의 권위를 평등화하고, 반성의 역할 모델을 제공하였으며, 수업을 둘러싼 다양한 입장을 경험해보는 연습이 이루어졌던 것이 예비교사의 과학 교사 정체성 형성에 긍정적인 영향을 미쳤다. 본 연구는 예비교사의 과학 교사 정체성 형성을 위한 교사 양성 과정에 관한 시사점을 제공한다. This study investigates the science teacher identity of pre-service science teachers (PSTs) in the context of a teaching practice course. Twenty-two PSTs who took the ‘Biological Science Lab. for Inquiry Learning’ course at the College of Education participated in this study. Artifacts created during the course were collected, and the teaching practices and reflections were recorded and transcribed. In addition, semi-structured interviews were conducted with nine PSTs, recorded, and transcribed. We found the science teacher identity was not well revealed at the beginning of the course. Authoritative discourse appeared in the early oral reflections of PSTs, indicating that the PSTs perceived oral reflection activities as ‘evaluation activities for teaching practice’. This perception shows that pre-service teachers participate in teaching practice courses as students attending a university, performing tasks and receiving evaluations from instructors. After the middle of the course, discourses showing the science teacher identity of the PSTs were observed. In the oral reflection after the middle part, dialogic discourses often arose, showing that the PSTs perceive the oral reflection activities as a ‘learning activity for professional development’. In addition, in the second half, discourse appeared to connect and interpret one’s experience with the teacher’s activity, indicating that the PSTs perceive themselves as teachers at this stage. In addition, the perception of experimental classes was expanded through the course. During the course, the practice of equalizing the authority of the participants, providing a role model for reflection, and experiencing various positions from multiple viewpoints in the class had a positive effect on the formation and continuation of the teacher identity. This study provides implications on the teacher education process for teacher identity formation in PSTs.

타지키스탄 대상 산림부문 공적개발원조 사업 타당성 평가

안지은(Jieun Ahn),김가은(Gaeun Kim),김지원(Jiwon Kim),김승현(Seunghyun Kim),손요환(Yowhan Son) 고려대학교 생명자원연구소 2022 생명자원연구 Vol.30 No.-

건조한 대륙성 기후를 가지는 중앙아시아 지역에서 아랄해 고갈 및 사막화에 대응하기 위한 산림 조성 및 산림 복원 협력 수요가 증가하고 있다. 본 연구에서는 대한민국의 타지키스탄에 대한 산림부문 공적개발원조(official development assistance, ODA) 사업의 타당성을 조사하였으며, 이를 바탕으로 사업 추진 여부를 결정하고 추진 전략에 대한 시사점을 제시하였다. 타당성 평가를 위해 경제협력개발기구 개발원조위원회(Organization for Economic Cooperation and Development/Development Assistance Committee, OECD/DAC)에서 제공하는 6대 평가 기준을 변형하여 세 가지 평가 기준(적절성, 협력국준비태세, 지속가능성)을 수립하였다. 이 기준으로 평가한 결과 후속 사업을 추진하는 것이 타당하다고 판단된다. 아울러, 사업의 성과 유지 및 지속가능성 증진을 위해 관계 기관의 역량 배양이 필요한 것으로 보인다. 본 연구는 중앙아시아 대상 산림 ODA 평가에 대한 사례 연구로써 향후 실효성 있는 평가법 개발 및 대(對)중앙아시아 산림 협력 활성화에 기여할 것으로 기대된다. Central Asian countries have demanded forest sector development to cope with depletion of the Aral Sea and desertification. As one of the development measures, the forest official development assistance (ODA) project between the Republic of Korea and Tajikistan has been discussed. This study evaluated the feasibility of the project by reviewing the literature materials, and the implications for establishing strategies were drawn. The feasibility study was conducted in accordance with three evaluation criteria (relevance, readiness, and sustainability), which were modified from the ones of Organization for Economic Cooperation and Development/Development Assistance Committee (OECD/DAC). Even though the project was evaluated as feasible, the result of the evaluation revealed that the overall capacity of forest sector in Tajikistan should be advanced to guarantee sustainability of the project's outcome. This study will serve as a referable case study for developing reasonable evaluation system for the forest ODA projects and promoting the forest cooperation projects in Central Asia.

개인차, 메타언어 자각, 언어 복잡성이 우연적 언어 학습에 미치는 영향

안지은(Jieun Ahn) 한국응용언어학회 2021 응용 언어학 Vol.37 No.3

This study investigated the effects of individual differences (in cognitive style and impulsiveness), metalinguistic awareness, and linguistic complexity on incidental second language learning. Native speakers of English (N = 23) read the novel The Mysterious Affair at Styles (Christie, 1920) rewritten in a semi-artificial language, which consisted of English vocabulary and head-final Korean syntax. After reading, participants took a surprise grammaticality judgment test, which targeted five head-final Korean sentence patterns of different levels of linguistic complexity(simple/complex). Participants also completed debriefing interviews on metalinguistic awareness and individual difference surveys. When the outcomes were analyzed according to linguistic complexity, learning effects were found to primarily stem from simple sentence patterns. Moreover, metalinguistic awareness and an experiential-intuitive cognitive style significantly predicted the incidental acquisition of complex sentence patterns. Metalinguistic awareness facilitated complex pattern learning, whereas an experiential-intuitive cognitive style had a negative impact on incidental learning of complex patterns.

암시적 지식 측정 도구로서의 단어 모니터링 과제(word monitoring task)의 타당성 검증 연구

안지은 ( Jieun Ahn ) 한국외국어대학교 외국어교육연구소 2021 외국어교육연구 Vol.35 No.1

본 연구는 심리언어학적 기법을 사용한 단어 모니터링 과제(word monitoring task)가 제2언어 암시적 지식 측정 도구로서 타당한지 검증해봄으로써 암시적 지식과 명시적 지식 측정 도구에 대한 선행 요인분석 연구의 흐름(Bowles, 2011; R, Ellis, 2005; Vafaee, Suzuki & Kachisnke, 2017)을 이어나가고자 한다. 영어 원어민 화자 16명과 한국인 영어 고급 학습자 50명은 단어 모니터링 과제, 유도된 모방 시험, 시간 제약이 없는 문법성 판단 시험, 메타언어 지식 시험을 보았다. 본 연구에서 단어 모니터링 과제와 유도된 모방 시험은 암시적 지식 측정 도구로 가정되었고, 시간 제약이 없는 문법성 판단 시험과 메타언어 지식 시험은 명시적 측정 도구로 가정되어 사용되었다. 연구 결과, 영어 원어민 화자들은 단어 모니터링 과제에서 한국인 영어 고급 학습자들보다 더 높은 문법적 민감도를 보여주었다. 한국인 학습자 중에 어렸을 때 영어권 국가에서 거주한 경험이 있는 학습자들은 문법적 민감도를 보였으나, 거주 경험이 없는 학습자들은 그렇지 않았다. 확인적 요인 분석을 실시하였을 때, 단어 모니터링 과제와 유도된 모방 시험은 한 요인에 수렴하였고, 시간 제약이 없는 문법성 판단 시험과 메타언어 지식 시험이 다른 요인으로 수렴하였다. 이러한 결과들을 종합하면 어휘 모니터링 과제는 암시적 지식 측정도구로서 충분한 타당성이 있다는 것을 강력히 시사한다. This study extends previous factor-analytic research on measures of second language (L2) implicit and explicit knowledge(Bowles, 2011; R. Ellis, 2005; Vafaee, Suzuki & Kachisnke, 2017) by validating the use of the word monitoring task (WMT), a psycholinguistic technique, as a measure of L2 implicit knowledge. Native speakers of English (n = 16) and Korean advanced learners of English (n = 50) took four tests: the WMT, the elicited imitation (EI) test, the untimed grammatical judgments test (UGJT), and the metalinguistic knowledge test (MKT). The WMT and the EI test were hypothesized as implicit knowledge measures, while ungrammatical items in the UGJT and the MKT were employed as hypothetical measures of explicit knowledge. The results indicated that the native speakers of English showed more grammatical sensitivity in the WMT than the Korean advanced learners of English. Among the Korean advanced learners, the experienced learners were sensitive to grammatical violations, whereas the less experienced learners were not. In a confirmatory factor analysis, the WMT and the EI loaded onto one factor, while the UGJT and the MKT loaded onto the other factor. These combined findings provide strong evidence confirming that the WMT is a valid measure of implicit knowledge.

2015 개정 영어과 교육과정에 기반한 영어 그림책 어휘 및 문장구조 분석

박지현(Park, Ji-Hyun),안지은(Ahn, Jieun) 한국초등영어교육학회 2021 초등영어교육 Vol.27 No.4

This study explores the possibility of using English picture books to supplement the English input in primary English education. To this end, a corpus of 107 popular English picture books was constructed and analyzed in the context of the revised national English curriculum of 2015. Vocabulary in the corpus was compared with the basic vocabulary lists of the national curriculum, and the syntactic complexity of sentences in the picture books was compared with the syntactic complexity of the example sentences of elementary-level language forms in the national curriculum. The results show that the vocabulary and syntactic complexity of picture books of ATOS book level 0-2 are generally suitable for elementary school students. Lexical analyses also reveal that picture books contain exclamations, onomatopoeia, colloquialisms, and words that children can relate to their everyday life, which are likely to function as authentic input in primary English education.

패각 분말기반 과산화칼슘 제조와 산소 유리 특성

유길선 ( Gilsun Yoo ),안지은 ( Jieun An ),조대철 ( Daechul Cho ),권성현 ( Sung Hyun Kwon ) 한국환경과학회 2018 한국환경과학회지 Vol.27 No.9

Bioremediation in situ is heavily dependent on the oxygenic environment which would privide the dwelling microorganism with sufficient oxygen. The situation could be easily resolved with supply of an Oxygen Releasing Compound (ORC). In this paper we prepared that sort of material out of oyster shell powder (mostly calcium carbonate) that prevails every shore areas of the country. We used two different oxidizing methods in the first step of the whole manufacturing process-conventional heating in a furnace and an ultrasound generator to obtain calcium oxide. Then that calcium oxide was further oxidized into calcium peroxide which may release oxygen under a moisturized condition. The oxygen releasing experiments were run to test the performance of our products, and to determine the gas kinetics during the experiments. Interestingly, calcium peroxide derived from ultrasound treatment was much more energy-effective as ORC than that from furnace heating although the heat derived process was better than that of ultrasound in terms of oxygen content and its releasing rate. We also found that most of the data collected from the gas releasing experiments fairly supported an ordinary 1^st order kinetics to oxygen concentration, which shaped a sharp discharge of oxygen at the very early moment of each test.