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비평적 탐구 활동이 자기 주도적 미술 감상 학습 능력에 미치는 영향
주민정,류재만 한국초등미술교육학회 2021 미술교육연구논총 Vol.66 No.-
The purpose of this study is developing guidance of critical inquiry program and I would like to use it as a strategy for enhancing self-directed are appreciation ability. First, the learner’s active participation ability was improved through critical inquiry. Learner participated all critical inquiry activities actively and the learner’s preference of art appreciation was raised compared to before. Second, the learner’s independent planning ability was improved through critical inquiry. Students have become able to understand the meaning of inquiry problem and hypotheses and to formulate their own hypotheses. Third, the learner’s inferential interpretation ability was improved through critical inquiry. Students have become enable to identify the contextual content of art works and verify whether their hypothesis was right or wrong. Fourth, the learner’s reflective introspection ability was improved through critical inquiry. Students evaluated the critical inquiry process through introspection and were able to talk about what to praise and supplement. Fifth, the learner’s receptive respect ability was improved through critical inquiry. Students showed an attitude of understanding and respect and accepted different views on the work even if they explores the same work through various critical inquiry activities. In the post-modern era, appreciation education should move toward forming meaning and judging value on its own rather than acquiring information contained in the work. According to this trend of appreciation education, critical inquiry activities can be an appropriate way for learners to judge the value of art works and develop an attitude of enjoying art culture in their lives. 4차 산업혁명으로 인해 인류가 직면한 새로운 세상은 무서운 속도로 우리의 삶을 바꾸고 있다. 새로운 지식과 정보가 쏟아져 나오는 이 시대에 학교 교육이 담당할 수 있는 것은 만들어진 지식을 전달하는 것이 아니라 급변하는 세상에 적응할 수 있도록 배우는 법을 가르치는 것이다. 그에 따라 미술 감상 교육에서는 작품에 대한 지식을 전달하는 것이 아닌 학생 스스로 작품을 감상할 수 있도록 자기 주도적 미술 감상 학습 방법을 가르쳐야 한다. 따라서 본 연구자는 학생이 능동적으로 감상 활동에 참여하고 생활 속에서 미술 문화 향유를 가능하게 할 수 있는 학습 전략에 대해 고민하였으며, 게히건이 제시한 비평적 탐구(Critical Inquiry) 이론에 주목하였다. 본 연구는 비평적 탐구 감상 활동이 자기 주도적 미술 감상 학습 능력에 미치는 영향을 밝히기 위해, 서울 A초등학교의 3학년 B 학급 22명(남자 11명, 여자 11명)을 대상으로 실행 연구를 진행하였으며, 자기 주도적 미술 감상 학습 능력의 구성 요소를 추출하여 이를 실행 연구 분석의 기준으로 삼아 유의미한 결과를 도출하고자 하였다. 연구의 적용 결과 비평적 탐구 활동이 학습자의 능동적 참여 능력, 주체적 계획 능력, 추론적 해석 능력, 반성적 성찰 능력, 수용적 존중 능력 향상에 유의미한 영향을 미친 것을 추론할 수 있었다.
전력변환장치 캐비넷에서의 내부발열 개선을 위한 열유동 분석 및 유통안전성 향상을 위한 진동특성 분석
주민정,서상욱,오재영,정현모,박종민 한국포장학회 2022 한국포장학회지 Vol.28 No.2
PCS needs to freely switch AC and DC to connect the battery, external AC loads and renewable energy in both directions for energy efficiency. Whenever converting happens, power loss inevitably occurs. Minimization of the power loss to save electricity and convert it for usage is a very critical function in PCS. PCS plays an important role in the ESS(Energy Storage System) but the importance of stabilizing semiconductors on PCB(Printed Circuit Board) should be empathized with a risk of failure such as a fire explosion. In this study, the temperature variation inside PCS was reviewed by cooling fan on top of PCS, and the vibration characteristics of PCS were analyzed during truck transportation for reliability of the product. In most cases, a cooling fan is mounted to control the inner temperature at the upper part of the PCS and components generating the heat placed on the internal aluminum cooling plate to apply the primary cooling and the secondary cooling system with inlet fans for the external air. Results of CFD showed slightly lack of circulating capacity but simulated temperatures were durable for components. The resonance points of PCS were various due to the complexity of components. Although they were less than 40 Hz which mostly occurs breakage, it was analyzed that the vibration displacement in the resonance frequency band was very insufficient. As a result of random-vibration simulation, the lower part was analyzed as the stress-concentrated point but no breakage was shown. The steel sheet could be stable for now, but for long-term domestic transportation, structural coupling may occur due to accumulation of fatigue strength. After the test completed, output voltage of the product had lost so that extra packaging such as bubble wrap should be considered.
재생 페트 플레이크의 시장 현황과 품질 평가 방안 연구
주민정,서상욱,이가은,오재영 한국포장학회 2020 한국포장학회지 Vol.26 No.1
PCR PET flake`s market endeavors difficult situations of its oversupply and decreasing demands in South Korea. Since China banned the import of most recycled plastics, flake producers who mostly export the flakes lost their biggest market. The producers struggled to survive in the competitions with PCR PET flake from EU and 3rd countries but it was challenging due to substandard quality and increasing cost. Attempts to improve the quality of PCR PET flake have been made but they were only an individual company`s efforts. The objective of this study was to understand the market status on PCR PET flake in South Korea and to present suggestions for improving its quality. The results of the questionnaires targeted to flake producers showed that no testing methods on PCR PET flake were standardized and there were critical factors to the quality such as moisture content, contaminants, and viscosity. Case studies of US, Japan and other countries had been done especially about testing methods and 76 samples from 21 companies were tested according to those methods. Based on the results, the final factors were decided as contaminants, moisture content, alkalinity index and intrinsic viscosity. There is a plan to standardize testing methods and they could be guidelines to improve the business competitiveness of PCR PET flake in South Korea