초등영어교육의 전략기반교수 모형 적용이 전략훈련효과와 영어능숙도에 미치는 영향

양재석(Yang, Jaeseok) 팬코리아영어교육학회(구 영남영어교육학회) 2021 영어교육연구 Vol.33 No.1

This study explores the integration of strategy-based instruction (SBI) into the primary English education in EFL context and investigates the impacts of explicit strategy instruction on the primary EFL learner’s use of language learning strategy and their English proficiency. To achieve this goal, the experimental group was given the explicit instruction of learning strategies for two semesters consisting of 102 hours of 40-minute lessons. Both strategy use and language proficiency of each group were assessed with the use of the CSILL (Children’s Strategy Inventory for Language Learning) and TOPEL test before and after the intervention. The findings showed that the experimental group showed significant increase in the use of language learning strategies as a whole. No statistical significance was found in the use of learning strategy by the levels of language proficiency. The present study implies the pedagogical importance of explicit and integrated strategy instruction in the EFL primary classroom. (150 words)

배경잡음을 고려한 가변임계값 Dual Rate ADPCM 음성 CODEC 구현

양재석(JaeSeok Yang),한경호(Kyongho Han) 대한전기학회 2000 대한전기학회 학술대회 논문집 Vol.2000 No.7

한국 대학생의 영어 글쓰기 능력과 글쓰기 전략의관계에 대한 연구

양재석(Yang, JaeSeok) 미래영어영문학회 2016 영어영문학 Vol.21 No.1

This study investigates the relationship between English writing performance and writing strategy use by college-level EFL students in Korea. The data of English writing scores and writing strategy questionnaire were collected from 40 EFL students taking English writing course in a university in Kyungnam area. The result of overall strategy use showed that cognitive strategy is the most frequently used strategy. Specifically, revision strategy is the most frequently used among other cognitive strategies. Moreover, English writing scores and writing strategy use are positively correlated. The result of stepwise multiple regression analysis indicates that two of cognitive strategies including revision and resourcing strategies have the most ability to predict English writing score among seven strategies. Therefore, it is suggested that teachers need to provide feedback to EFL writers in order to encourage them to participate actively in self-editing and revision in the writing process. Additionally, EFL writers need to be more aware of using alternative strategies to address their linguistic or lexical difficulties, rather than overly relying on using resources while performing L2 writing tasks.

한국 대학생의 영어 읽기 관련 어휘학습전략에 대한 연구

양재석 ( Yang Jaeseok ) 한국현대언어학회 2017 언어연구 Vol.33 No.1

This study investigated the underlying patterns of reading related vocabulary learning strategies and their relationship to vocabulary size. Based on data, from 344 college-level EFL students, which reported the reading-related vocabulary learning strategies in relatin to the students curent vocabulary size, the findings highlighted six types of strategies. These strategies were explained in relatin to the findings and theoretical aspects of previous research. Of these strategies, word noticing is the most frequently used strategy, followed by guessing strategy, extended strategy, confirmation strategy, form and meaning-related strategy, and memory strategy. The use of reading related vocabulary learning strategies in relation to the vocabulary size, showed that participants with bigger vocabulary size tended to use strategies more frequently than those with smaller vocabulary size. The findings showed three strategies (form & meaning, guessing, and word noticing strategies) have the greatest ability to predict vocabulary size. (Daegu National University of Education)

성공적인 초등영어 독자의 웹기반 영어 읽기에 나타난 뉴리터러시 기능 및 온라인 읽기 전략 탐구

양재석(Jaeseok Yang) 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.5

본 연구는 우리나라 초등학생 영어 학습자가 온라인 읽기과업을 수행하면서 나타나는 뉴리터러시 기능의 양상과 온라인 읽기전략의 활용을 조사하였다. 성공적인 독자에게 나타나는 온라인 읽기 전략 및 웹기반 읽기과정에서 수반되는 뉴리터러시 기능을 살펴봄으로서 교육적 적용 방안을 모색하고자 한다. 이를 위해 대구지역 A초등학교에 재학 중인 6학년 초등학생을 대상으로 1년간 웹기반 읽기 수업에 참여한 학생 중 읽기능력이 높은 참여자 4명을 선정하여 성공적인 독자의 온라인 읽기 전략 활용 및 과정의 양상을 살펴보고자 하였다. 각각의 참여자에게 웹기반 읽기과업을 제시하고 생각말하기 기법 및 심층면접을 실시하여 질적분석을 통해 온라인 읽기전략과 활용양상 및 웹기반 읽기과정에서 나타나는 뉴리터러시 기능을 분석하였다. 본 연구의 결과, 성공적인 온라인 읽기 학습자들은 온라인 읽기 과업을 수행함에 있어 중요한 질문 식별하기, 정보찾기, 정보 재조직하기, 정보 평가하기와 같은 뉴리터러시 기능을 사용하는 것으로 나타났으며, 온라인 읽기 전략으로는 전반적 읽기전략, 지원전략, 문제해결전략을 비롯한 다양한 온라인 읽기 전략들을 활용하는 것으로 나타났다. 본 연구를 통해 초등영어에서 웹기반 영어 읽기를 적용함으로서 21세기에 요구되는 문해력을 기를 수 있는 교수방안을 적용할 필요가 있다. This study investigates the use of online reading strategies by the successful EFL primary students and identifies their strategic process involved in new literacy practices. Four 6th grade primary students participate in this study. They are successful EFL readers and have taken a Web-based English reading class for one year. The participants are asked to read an online text and answer comprehension questions. The data include observation, think-aloud protocols, and in-depth interviews. Through the qualitative analysis, the emerging characteristics of strategic reading behavior indicate EFL readers demonstrate the fulfillment of new literacy functions including identifying questions, locating information, synthesizing information. In addition, they employ diverse online reading strategies including global reading strategies, support strategies, and problem-solving strategies. On the basis of the findings, it can be suggested that the web-based reading practices be applied to English education and the learning opportunities be offered to the elementary students to develop their strategic process of online reading in English.

저전력 CMOS 디지털 회로 설계에서 경로 균등화에 의한 글리치 감소 기법

양재석(Jaeseok Yang),김성재(Sungjae Kim),김주호(Juho Kim),황선영(Sun-Young Hwang) 한국정보과학회 1999 정보과학회논문지 : 시스템 및 이론 Vol.26 No.10

본 논문은 CMOS 디지털 회로에서의 전력 소모의 주원인인 신호의 천이중에서 회로의 동작에 직접적인 영향을 미치지 않는 불필요한 신호의 천이인 글리치를 줄이기 위한 효율적인 알고리즘을 제시한다. 제안된 알고리즘은 회로의 지연 증가 없이 게이트 사이징과 버퍼 삽입에 의해 경로 균등(peth balancing)을 이룸으로써 글리치를 감소시킨다. 경로 균등화를 위하여 먼저 게이트 사이징을 통해 글리치의 감소와 동시에, 게이트 크기의 최적화를 통해 회로 전체의 캐패시턴스까지 줄일 수 있으며, 게이트 사이징 만으로 경로 균등화가 이루어지지 않을 경우 버퍼 삽입으로 경로 균등화를 이루게 된다. 버퍼 자체에 의한 전력 소모 증가보다 글리치 감소에 의한 전력 감소가 큰 버퍼를 선택하여 삽입한다. 이때 버퍼 삽입에 의한 전력 감소는 다른 버퍼의 삽입 상태에 따라 크게 달라질 수 있어 ILP (Integer Linear Program)를 이용하여 적은 버퍼 삽입으로 전력 감소를 최대화 할 수 있는 저전력 설계 시스템을 구현하였다. 제안된 알고리즘은 LGSynth91 벤치마크 회로에 대한 테스트 결과 회로의 지연 증가 없이 평균적으로 30.4%의 전력 감소를 얻을 수 있었다. This paper presents an efficient algorithm for reducing glitches caused by spurious transitions in CMOS logic circuits. The proposed algorithm reduces glitches by achieving path balancing through gate sizing and buffer insertion. The gate sizing technique reduces not only glitches but also effective capacitance in the circuit. In the proposed algorithm, the buffers are inserted between the gates where power reduction achieved by glitch reduction is larger than the additional power consumed by the inserted buffers. To determine the location of buffer insertion, ILP (Integer Linear Program) has been employed in the proposed system. The proposed algorithm has been tested on LGSynth91 benchmark circuits. Experimental results show an average of 30.4% power reduction.

게이트 사이징과 감각 경로 검색에 의한 CMOS 디지털회로의 저전력 설계 기법

김주호(Juho Kim),양재석(Jaeseok Yang),황선영(Sunyoung Hwang) 한국정보과학회 1998 정보과학회논문지 : 시스템 및 이론 Vol.25 No.7

본 논문은 CMOS 디지털 회로의 고성능 저전력 설계에 있어 시간 최적화와 동시에 전력 소모를 최소화하기 위한 효율적인 게이트 선택 알고리즘을 제시한다. 제안된 알고리즘은 감작 경로 분석을 통하여 회로의 최장 경로 지연을 줄이며, 전력 요소를 고려한 게이트 사이징에 의해서 시간 최적화를 수행한다. 이를 위해 모든 게이트에 대해 최소 크기의 라이브러리를 사용하고 주어진 시간 조건을 만족할 때 까지 최장 감작 경로상의 게이트를 선택적으로 증가시킨다. 제안된 알고리즘은 ISCAS-85 benchmark 회로를 이용하여 테스트 되었고, 회로의 최장 감작 경로의 지연 증가 없이 평균적으로 30%의 전력 감소를 얻을 수 있었다. A new efficient gate-sizing algorithm is proposed in this paper for high-speed and low-power design of CMOS digital circuits. Since the gate-sizing problem is a tradeoff between delay and power of the circuit, we can optimize the power at the given speed or the speed at the given power, The proposed algorithm optimizes the power at the given circuit delay by concurrent path sensitization and gate-selection method, It was tested on ISCAS-85 benchmark circuits and an average of 30% power reduction was achieved as a result.

애니메이션을 활용한 영어 지도가 초등학생의 어휘력과 정의적 영역에 미치는 영향

노유진(Noh, Yoojin),양재석(Yang, Jaeseok) 한국초등영어교육학회 2020 초등영어교육 Vol.26 No.2

This study focuses on the implementation of an animation movie for teaching English to primary school students. Using Thematic Unit, the researchers compared the animated film ‘Zootopia’ with the contents of the fifth-grade curriculum and selected 12 scenes from the movie. The class was planned and conducted after selecting and analyzing scenes and subjects suitable for the grade level and the central theme. Twenty five students in the fifth grade learned new vocabulary and expressions in the animation-based English class for 20 weeks. The effects of the class on students’ vocabulary knowledge and affective domain regarding interest, anxiety, confidence, and participation were examined through quantitative and qualitative methods. The data from the pre and post vocabulary tests and the surveys of affective domain were analyzed using t-test. Also, the qualitative data from the open-ended questions in the survey and the interview were analyzed to support the findings. The results of the data analysis showed that English learning using animated film had a significant effect on improving vocabulary knowledge. When comparing their changes of affective domains, the students demonstrated statistically significant higher scores in interest, participation, and confidence, but not in relieving anxiety. Based on the findings from this study, some pedagogical implications for using animation movie in primary EFL teaching are discussed in the paper.

만성이식신 기능부전의 위험인자

김상준,한진석,이정상,오지은,진호준,안규리,김성권,양재석 대한신장학회 1998 Kidney Research and Clinical Practice Vol.17 No.4

Chronic renal allograft dysfunction(CRAD) has been the rnost frequent cause of graft failure for last decade. Even in cycloporine era the incidence of CRAD has not changed. From Jan 1992 to Dec 1994 118 kidney transplants performed in Seoul National University Hospital had been entered into our database. All patients had been followed for at least 1 year. CRAD is defined if there had been progressive deterioration of renal function that was not explained by other causes and finally serum creatinine(Scr) had doubled from basal Scr after transplantation and has been maintained. Analyzed factors as follows ; HLA misrnatch, living or cadaver transplant, ABO mismatch, acute rejecton(AR), frequency and timing of AR, donor age, recipient age, cold ischmic time, delayed graft function, proteinuria, infection. A CRAD has developed in 27(23%) patients. The incidence of CRAD with time was analyzed by Kaplan-Meier survival analysis and compared with log-rank test. We concluded that in univariate anlaysis the risk factors are acute rejection, frequency of AR, AR after 3 months after tranplantation, age of recipient$lt;15 and cold ischmic time$gt;40rnin for living transplants. Although HLAMM=0 significantly decreased the risk of CRAD (P$lt;0.05), there was no difference in renal survival between groups of HLAMM$gt;1. AR and HLAMM (HLAMM=O vs. HLAMM$gt;1) were related each other(P=0.02).