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최은지(Eunji Choi),이정원(Jungwon Lee),임혜숙(Hyesook Lim) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
A difference invertible Bloom filter(d-IBF) has been used to identify the difference of sets using two invertible Bloom filters. However, since decoding depends only on pure cells, the decoding performance is very low in case of memory less than a certain size. In this paper, we classify the types of decoding errors in d-IBF, and propose a new decoding method that improves the decoding performance. Simulation result shows that the proposed decoding method reduces the number of occurrences of each type causing decoding errors, which allows us to identify the difference of sets even in a smaller size of memory.
실시간 온라인 화상 한국어 수업에서의 상호작용 -사회통합프로그램 수업을 중심으로-
최은지 ( Choi Eunji ) 겨레어문학회 2021 겨레어문학 Vol.67 No.-
본고에서는 실시간 온라인 화상 한국어 수업에서의 상호작용 양상을 분석하고 자 하였다. 이를 위해 본고에서는 3개의 한국어 교실에서 실시간 온라인 방식으로 진행된 한국어 수업 26차시를 녹화하고 이를 전사하여 분석하였다. 분석은 수업에서의 교사와 학습자의 발화량, 연습 활동과 의사소통 활동의 유형, 상호작용 활동의 조직 유형에 대해 이루어졌다. 본 연구의 분석 결과 실시간 화상 온라인 한국어 수업에서는 교사의 발화량이 전체의 80% 내외를 차지하는 것으로 나타났다. 분석 결과 온라인 수업에서 학습자의 발화량은 일반 수업에서보다 적었는데, 이는 학습자의 자유로운 발화를 독려하는 언어 사용 시간의 비중이 높지 않았기 때문이었다. 또한 언어 사용 시간에도 학습자의 주도적인 의사소통 활동이 많이 이루어지지 않고 있었으며 상호작용의 조직 방식 역시 단조로운 유형으로 나타났다. Interaction of Korean class on real-time online video is analyzed in this study. In this purpose, 26 times of Korean classes conducted on real-time online method in three Korean classrooms were recorded and transcribed and analyzed in this study. The analysis was conducted on the amount of utterance of teachers and learners in class, the type of practice and communication activities and the type of organization of interaction activities. It was found that the amount of teacher utterance accounted for around 80% of the total in Korean classes on real-time online video as a result of the analysis in this study. The learner’s speech amount in online classes was less than in general classes because the proportion of language use time encouraging learners to speak freely was not enough as a result of the analysis. Also, learners did not have many leading communication activities even during language use time and the organization of interaction was also in monotonous types.
최은지(Eunji Choi),권미량(Meeryang Kweon) 한국생태유아교육학회 2023 생태유아교육연구 Vol.22 No.2
본 연구에서는 유아교사의 직업정체성에 대한 인식 탐구를 목적으로 하였다. 이를 위해 22년 4월 15일부터 5월 1일까지 P시와 U시의 유아교육기관에 근무하고 있는 담임교사 13명을 대상으로 개방형 설문조사와 심층면담을 하였다. 수집된 자료는 반복적 비교분석법의 귀납적 절차에 따라 분석하였다. 그 결과 유아교사의 직업정체성에 대한 인식은 생명중심의 직업, 타자를 향하는 직업, 함께 성장하는 직업, 일상을 살아가는 직업, 선택의 전문성이 요구되는 직업, 요구와 평가의 순환에 서 있는 직업, 여성 중심 조직문화인 직업, 만남의 광장인 직업으로 나타났다. 본 연구의 결과는 유아교사의 교육적 실천을 돕기 위한 기초자료를 제공하고, 유아교사의 건강한 직업정체성 형성을 위한 사회·문화적 인식 개선 및 관계 지원을 위한 프로그램 개발, 교육 정책의 변화 필요, 유보통합의 논의 접근 방향에 대한 시사점을 제공하였다. This study's purpose was to explore early childhood teachers' self-identified occupational identity. A survey and interviews were conducted with 13 homeroom teachers working at early childhood educational institutions in P and U from April 15 to May 1, 2022. The collected data were analyzed according to the inductive procedure of the repetitive comparative analysis method. The occupational identity perception of early childhood teachers' jobs is as follows. It is a life-oriented teaching position, a teaching position toward you, a teaching position for growing together, a teaching position that requires professionalism in everyday life, a teaching position that is in a cycle of demand and evaluation, a female-centered organizational culture, and a meeting square. This study's results provided basic data to help early childhood teachers' practice education; it provided implications for the development of programs to improve social and cultural awareness and support relationships to form a healthy occupational identity for early childhood teachers, the need to change educational policies, and the direction of the discussion.
소포제 첨가에 따른 Trichoderma sp.의 cellulase 활성 변화
최은지 ( Eunji Choi ),김영숙 ( Yeong-suk Kim ),윤정희 ( Jeonghee Yun ) 한국목재공학회 2021 한국목재공학회 학술발표논문집 Vol.2021 No.2
Trichoderma sp. is a widely used fungal strain that produces lignocellulolytic enzymes. During the incubation in bioreactor, there are significant physical parameters such as temperature, pH and gas flow rate and they can affect enzyme production. The intense aeration and stirring in the process of bioreactor can cause the formation of foam. Foam can negatively affect cells and proteins and excessive foam on surface not only leads to reduction of oxygen transfer, but can also overflow the bioreactor and cause safety issues during operation. These problems can result in decreased process productivity, therefore antifoaming agents are crucial to preventing the formation of foam. In present study, Cellulase activity during incubation of Trichoderma sp. in lab scale bioreactor was monitored dependent on types of antifoaming agent. Endoglucanase(endo-1,4-β-d-glucanase EG, EC 3.2.1.4) and β-glucosidase(1,4-β-d-glucosidase, BGL, EC 3.2.1.21) activity were periodically measured. At the maximum enzyme activity, it was observed that Trichoderma sp. incubated with antifoaming agents increased EG and BGL activity by 4-fold and 3-fold, respectively after 15days of incubation. These results suggest that the addition of antifoaming agents is essential for incubation and may have significant effect on the increase in fungal growth and cellulase production.