BaTiO₃ 분말과 분산제 첨가에 따른 Fe계 나노결정 P/M시트의 전자파흡수 특성변화

김미래,조현정,박원욱,Kim, Mi-Rae,Cho, Hyeon-Jeong,Park, Won-Wook 한국분말야금학회 2008 한국분말재료학회지 (KPMI) Vol.15 No.1

The amorphous $Fe_{73}Si_{16}B_7Nb_3Cu_1$(at%) alloy strip was pulverized using a jet mill and an attrition mill to get flake-shaped powder. The flake powder was mixed with dielectric $BaTiO_3$ powder and its dispersant to increase the permittivity. The powders covered with dielectric powders and its dispersant were mixed with a binder and a solvent and then tape-cast to form sheets. The absorbing properties of the sheets were measured to investigate the roles of the dielectric powder and its dispersant. The results showed that the addition of $BaTiO_3$ powders and its dispersant improved the absorbing properties of the sheets noticeably. The powder sheet mixed with 5 wt% of $BaTiO_3$ powder and 1 wt% of dispersant showed the best electromagnetic wave absorption rate because of the increase of the permittivity and the electrical resistance.

그람양성세균각막염에 대한 임상적, 미생물학적 분석: 15년 연구

김미래,이상범,Mi Rae Kim,Sang Bumm Lee 대한안과학회 2014 대한안과학회지 Vol.55 No.10

Purpose: To investigate the shifting trends of pathogenic organisms, antibiotic resistance, and clinical characteristics of patients with Gram-positive bacterial keratitis and to elucidate the prognostic factors. Methods: We performed a retrospective chart review of 152 isolates in 146 eyes with Gram-positive bacterial keratitis between January 1998 and December 2012. The study was divided into 5 periods for analysis of the bacteriological profiles and in vitro antibiotic resistance. The epidemiological and clinical characteristics were compared according to bacterial isolates. Logistic regression analysis was performed to determine the risk factors. Results: Gram-positive bacterial keratitis tended to decrease and significant change in the distribution of isolates was not observed. Commonly isolated organisms were S. epidermidis (48.7%), S. aureus (25.0%), and S. pneumoniae (7.2%) in order of frequency. The resistance to fluoroquinolone tended to increase (<EM>p </EM>= 0.104) and resistance to gentamicin was significantly decreased (<EM>p </EM>= 0.01). S. epidermidis had the shortest corneal epithelium healing time (<EM>p </EM>= 0.035) and the most favorable visual outcome after treatment (<EM>p </EM>= 0.035) compared with the other species. Risk factors for poor visual outcomes included a best corrected visual acuity less than 0.1 at initial evaluation and an epithelial healing time greater than 10 days. Conclusions: Gram-positive bacterial keratitis tended to decrease and S. epidermidis was the most common isolate. The clinical prognosis was most favorable in S. epidermidis. The BCVA less than 0.1 at initial evaluation was an important risk factor for poor visual outcome and surgical treatment in Gram-positive bacterial keratitis.J Korean Ophthalmol Soc 2014;55(10):1432-1444

특발성 망막전막에서 내경계막 제거 시 인도시아닌그린 염색의 용매에 따른 수술결과 비교

김미래,박주홍,사공민,장우혁,Mi Rae Kim,Ju Hong Park,Min Sagong,Woo Hyok Chang 대한안과학회 2014 대한안과학회지 Vol.55 No.6

Purpose: This study was designed to compare the outcomes in idiopathic epiretinal membrane (ERM) surgery according to solvents of indocyanine green (ICG) for internal limiting membrane (ILM) peeling. Methods: The medical records of 27 patients (27 eyes) with idiopathic ERM who had undergone pars plana vitrectomy with ICG staining for ILM peeling were retrospectively reviewed. The patients were divided into two groups according to solvents of 0.25% ICG solutions. Solvents used were balanced salt solution (BSS) in group I (15 eyes) and 5% glucose in group II (12 eyes). The severity of ERM, the duration of symptoms, the preoperative and postoperative best corrected visual acuity (BCVA) values, the visibility of the stained ILM (Good, Fair, Poor), and the postoperative complications were compared in the two groups. Results: There was no statistically significant difference in the severity of ERM, the duration of symptoms and the preoperative BCVA in the two groups. The postoperative BCVA was significantly improved in both groups, and the difference was not statistically significant (<em>p</em> = 0.675). There was a significantly smaller number of eyes with poor ILM staining in group II than in group I (<em>p</em> = 0.014). No complications such as recurrence of ERM, atrophy of the retinal pigment epithelium (RPE) or retinal detachment were observed in the two groups. Conclusions: The higher specific gravity of 5% glucose compared with that of BSS as ICG solvents allows for improved ILM visualization. Therefore using the 5% glucose-ICG solution for staining ILM improved the visibility of ILM compared BSS-ICG solution and led to comparable visual recovery. J Korean Ophthalmol Soc 2014;55(6):847-853

외국어 학습 전략 사용과 영어 학업성취도의 관계

김미래(Kim Mi-Rae),서천수(Suh Chun-Soo) 팬코리아영어교육학회(구 영남영어교육학회) 2007 영어교육연구 Vol.19 No.1

  This study aimed to investigate the relationship of languages learning strategies and the vocabulary, listening, reading, listening and reading, and KSAT achievements. This research was done with 130 girls’ high school students who were divided into three groups: low, mid, and high. Data were gathered and analyzed using SPSS ANOVA and regression analysis. The study showed that there are significant differences in the amount of strategy use between low-level students and high-level students in all researched areas, and between mid-level students and high-level students in reading, listening and reading, and KSAT. And, it was found that memory, recognition, and metacognition strategies have highly significant relationships with all level-based groups. Finally, metacognition strategies are the best indicators which will predict the achievement in vocabulary, reading, and listening and reading, and cognition strategy in listening and KSAT. Findings suggested that the use of language learning strategies influences students’ achievement, and that if learners can use learning strategies more and better, their achievements will be improved.

청주지역 초등학교 운동장의 규모계획특성과 사용자평가 연구

김미래(Kim, Mi-Rae),김기수(Kim, Gi-Soo) 대한건축학회 2017 대한건축학회 학술발표대회 논문집 Vol.37 No.2

초등학교 1학년 교사의 교사효능감, 아동의 학업수행능력 및 학교적응의 구조적 관계

김미래(Kim, Mi-Rae),이영진(Lee, Young-Jin),이은형(Lee, Eun-Hyung) 학습자중심교과교육학회 2020 학습자중심교과교육연구 Vol.20 No.7

본 연구는 초등학교 1학년 교사의 교사효능감과 1학년 아동의 학업수행능력, 학교적응 간의 관계를 밝히기 위한 목적으로 실시되었다. 연구대상은 육아정책연구소의 한국아동패널 8차년도에 참여한 교사와 아동 1,031쌍이었으며, 연구를 위해 교사효능감, 학업수행능력, 학교적응 척도가 사용되었다. 수집된 자료의 분석은 SPSS21.0과 AMOS 25.0을 사용하여 기초통계, 상관분석, 구조방정식 모형을 통하여 이루어졌다. 연구결과는 다음과 같다. 첫째, 교사효능감은 학업수행능력과 아동의 적응에 영향을 미치는 것으로 나타났다. 둘째, 교사효능감이 아동의 적응에 미치는 영향에서 아동의 학업수행능력의 매개효과가 나타났다. 이와 같은 연구결과를 토대로 1학년 아동의 학교적응을 높일 수 있는 방안에 대한 시사점을 얻을 수 있다. This study was conducted to reveal the relationship between teacher efficacy of first-year elementary school teachers and academic performance of first-year children and school adaptation. The subjects of the study were 1,031 pairs of teachers and children who participated in the 8th year of the Korea Children s Panel by the Institute for Child Care Policy, and teacher efficacy, academic performance, and school adaptation measures were used for the research. Analysis of the collected data was done through basic statistics, correlations, and structured models using SPSS 21.0 and AMOS 25.0. The results of the study are as follows. First, teacher effectiveness has been shown to affect academic performance and the adaptability of children. Second, the medium effect of a child s scholastic ability was shown in the effect of teacher efficacy on a child s adaptation. Based on these research results, it is possible to get suggestions on ways to improve school adaptability for first-year children

교사-유아상호작용과 교수효능감 및 교사 업무스트레스가 교사행복감에 미치는 영향

김미래(Kim, Mi-Rae),이은형(Lee, Eun-Hyung),이영진(Lee, Young-Jin) 한국열린유아교육학회 2018 열린유아교육연구 Vol.23 No.4

본 연구는 교사-유아 상호작용, 교수효능감 및 교사업무스트레스와 교사행복감의 관계를 알아보는 데 그 목적이 있다. 연구대상은 2014년도에 수집된 육아정책연구소의 한국아동패널 7차년도에 참여한 유아 총 1,111명과 그들의 교사이다. 연구를 위해 교사-유아상호작용척도(ECOI), 교수효능감 검사도구(TSES), 교사 업무스트레스 척도, 교사행복감 척도가 사용되어 자료가 수집되었고, 자료는 Pearson 적률 상관분석과 단계적 회귀분석을 통해 검증하였다. 연구 결과는 다음과 같다. 첫째, 대학원 졸업교사의 행복감이 전문대 졸업 교사의 행복감보다 높게 나타났으며, 50대 이상 교사의 행복감이 30대 교사보다 높은 것으로 나타났다. 둘째, 교사-유아 상호작용 및 교수효능감과 교수 행복감 사이에 유의미한 정적 상관 관계가, 교사 업무스트레스와 교사행복감 사이에 유의미한 부적 상관 관계가 있는 것으로 나타났다. 셋째, 교사 업무스트레스는 교사행복감을 가장 높게 예측하는 유의미한 부적 예측 변인인 것으로 나타났다. 이러한 연구결과를 고려할 때, 교사들의 행복감을 높이기 위해 교사 업무스트레스를 줄일 수 있는 지원 방안에 대한 시사점을 얻을 수 있다. The purpose of this study is to investigate the relationships between teacher-child interaction, teachers’ efficacy, teacher’s work stress, and teachers’happiness. The subjects used in this study were 1,111 children and their teachers, who attended the 7th Korean Children and Youth Panel Survey of Korea Institute of Child Care and Education collected in 2014. For this study, the data were collected using ECOI, TSES, teacher-stress scale, and teacher-happiness scale and the collected data were validated by Pearson’s correlation and Multi-Regression Analysis. The major findings of this study are as follows. First, the happiness of teachers with graduate degree was higher than that of teachers with 2-year college degree, and teachers in their 50s and older appeared to be happier than teachers in their 30s. Second, there was a significant positive correlation between teacher-child interaction and teachers’ efficacy with teachers’ happiness, whereas there was a negative correlation between teachers’workstress and teachers’ happiness. Third, it was revealed that teachers’ workstress was a meaningful negative predictive variable that predicts teachers’ happiness at the highest level. Based on the results of this study, the research has implications about support plan in decreasing teachers’ workstress to improve teachers’ happiness

우울 증상 완화를 위한 공감형 챗봇 개발에 관한 연구

김미래(Mi-Rae Kim),박태희(Tae-Hee Park),오하영(Ha-Young Oh) 한국정보통신학회 2023 한국정보통신학회논문지 Vol.27 No.5

본 논문은 우울 증상을 가진 사람들을 위한 공감형 챗봇 개발에 관한 연구이다. 현대 사회의 많은 사람이 우울 장애와 같은 정신 질환으로 고통받고 있지만, 현실적으로 정신건강의학과 도움을 받는 데 한계가 있다. 따라서 우울한 감정을 호소하는 사람들이 시간과 공간의 제약을 받지 않고, 챗봇을 통해 우울한 감정을 약화하는 것을 목표로 한다. 공감형 챗봇은 검색 기반 모델과 생성 모델의 결합 구조를 띤다. 먼저, Poly Encoder를 통해 저장된 데이터베이스 내에서 최적의 후보군을 도출한다. 이후 Cross Encoder를 통해 후보군 재 순위화 과정을 거쳐 최종 답변을 선택한다. 만약 해당 후보군이 최종 답변으로 적절하지 않을 경우, 생성 모델을 통해 새로운 답변 문장을 생성한다. 위 구조를 통해 각 모델이 갖는 한계점을 극복하여 대화가 잘 이루어짐과 동시에 공감형 답변을 하는 챗봇 실현이 가능하다. This paper proposes a novel solution to the problem of limited access to mental health resources for individuals experiencing depressive symptoms. We propose the development of an empathetic chatbot that can provide support and reduce depression regardless of time and space constraints. Our chatbot utilizes a combination of retrieval-based and generative models. First, the Poly-encoder extracts the most relevant candidates from the stored database. Then, the Cross Encoder re-ranks the extracted candidates to identify the most appropriate answer for users. In cases where the final candidate is unsuitable, the generative model generates a new response that aligns with the user’s emotions. This approach allows us to overcome the limitations of each model and create a chatbot capable of delivering empathetic and supportive answers. Our ultimate goal is to offer a practical and accessible solution to support those struggling with depressive disorders.

감각의 확장과 공유

김미래(Kim Mi-Rae),장혜진(Chang Hae-Jin) 한국디자인학회 2017 한국디자인학회 학술발표대회 논문집 Vol.2016 No.10

속발외사시의 수술 결과 및 예후인자

김민석(Min Seok Kim),김미래(Mi Rae Kim),김원제(Won Jae Kim),김명미(Myung Mi Kim) 대한안과학회 2015 대한안과학회지 Vol.56 No.12

목적: 속발외사시의 수술 결과에 따른 임상양상을 비교하여 수술 예후인자를 분석해 보고자 한다. 대상과 방법: 1988년 7월 1일부터 2013년 12월 31일 사이에 내사시 수술 후 발생한 속발외사시로 수술을 시행 받은 환자 65명을 대상으로 처음에 있었던 내사시의 분류와 진단 나이, 내사시 수술의 방법과 시기, 외사시 수술의 방법과 시기, 내전장애의 유무, 약시의 유무, 외사시 수술 전후의 사시각 등을 분석하였다. 결과: 속발외사시 수술 후 평균 경과관찰 기간은 5.1 ± 5.2년(0.5-17.4년)으로, 최종 경과관찰 시 50명(76.9%)에서 수술성공을 보였으며 속발외사시의 누적성공률은 수술 후 7.7년부터 68.2%로 일정해지는 양상을 보였다. 정위군과 재발군을 비교한 결과, 외사시 수술을 시행한 나이가 10세 이하인 경우가 재발군에서 많았으며(14.0% vs. 41.7% p=0.044), 외사시 수술 후 경과관찰 기간이 유의하게 길었고(3.9년 vs. 8.6년, p=0.014) 재발하기까지 기간은 평균 16.9개월이었다. 수술 후 1주일째의 사시각이 정위군은 평균 0.5프리즘 디옵터(prism diopters, PD)의 내편위, 재발군에서는 평균 4.5PD의 외편위로 유의한 차이를 보였다(p=0.047). 결론: 내사시 수술 후 속발외사시가 일찍 발생하여 어린 나이에 수술이 필요하였던 경우와 속발외사시 수술 후 1주일째 외편위가 있을때 속발외사시의 재발이 더 많은 것으로 나타났으며 속발외사시의 재발이 아주 늦게 발생하는 경우도 있으므로 장기적인 경과관찰이 필요하다. Purpose: In this study we evaluated the prognostic factors by comparing the clinical manifestation of consecutive exotropia after consecutive exotropia surgery. Methods: We performed a retrospective study of 65 patients who had surgery due to consecutive exotropia after esotropia surgery in Yeungnam University Medical Center between July 1988 and December 2013. The type of esotropia, age at diagnosis of esotropia, type of esotropia surgery, age at esotropia surgery, type of consecutive exotropia surgery, age at consecutive exotropia surgery, presence of adduction limitation, presence of amblyopia, and preoperative and postoperative angles of strabismus were analyzed. Results: The mean follow-up time after consecutive exotropia surgery was 5.1 ± 5.2 years and 50 of 65 patients showed successful surgical outcomes at the last follow-up. Cumulative success rate of consecutive exotropia remained stable postoperatively in 68.2% of patients after 7.7 years. When comparing the success group and the recurrent group, the age at consecutive exotropia surgery was significantly younger and mean follow-up time was significantly longer in the recurrent group. The mean interval between consecutive exotropia surgery and recurrence of exotropia was 16.9 months in the recurrent group. The mean angle of strabismus at postoperative 1 week was significantly different between the 2 groups; 0.5 prism diopters (PD) esodeviation in the success group and 4.5 PD exodeviation in recurrent group. Conclusions: Recurrence of consecutive exotropia frequently developed with younger age at consecutive exotropia surgery and exodeviation at postoperative 1 week. Recurrent consecutive exotropia should be observed for an extended period, thus requiring periodic long-term postoperative follow-ups.