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강정아,노영희,Kang, Jung A,Noh, YoungHee 한국도서관정보학회 2018 한국도서관정보학회지 Vol.49 No.1
본 연구는 국내 어린이도서관 문화프로그램의 사회적 효과를 측정하여 어린이도서관의 사회적 가치를 제시하였다. 이를 위해 초등학생 511명을 대상으로 설문조사를 실시하여 어린이도서관 문화프로그램의 사회적 효과를 측정하였다. 분석 결과 개인적 영역의 표현력/창의력, 자존감, 즐거움/기쁨/행복과 사회적 영역의 문화예술태도와 문화예술경험변화 및 사회적 상호작용으로 친구관계 증대, 지역커뮤니티 생성과 강화, 지역사회 소속감/공동체성, 지역사회참여 등의 효과가 있는 것으로 나타났다. 이를 근거로 어린이도서관은 어린이의 삶의 질을 향상하고, 사회적 상호작용 역량의 향상, 지역사회 공동체 유지 및 지역커뮤니티 생성과 강화, 지역애착과 지역 활동 참가에 영향을 미치는 중요한 사회자본으로 가치를 가진다고 볼 수 있다. The aim of this study was to assess the social impact of the cultural programs of the children's libraries in Korea and further present the libraries'social value. To this end, we have conducted a survey on 511 elementary school students to assess the social impact of the children libraries'cultural programs. As a consequence, we have ascertained the children's expressiveness / creativity within their personal realms, self-esteem, pleasure / joy / happiness as well as their attitude towards cultural arts and changes in the cultural and artistic experiences further to growth in friendship as a matter of social interaction, generation and strengthening of local communities, sense of affiliation with local community / identify, and local community participation, among the manifestations of the social impact concerned. Based on this, children's libraries can be regarded as an important social capital of the community in the following aspects. Children's libraries enhance the quality of life and children's interaction skills. It also make them feel attached to the local community. Children's libraries maintain local communities, contribute to the creation and strengthening of local communities, and encourage participation in local activities.
대기압 유전체배리어 방전으로 표면처리된 TiO<sub>2</sub> 분말의 광분해 특성
강정아,김윤기,Kang, Jeong A,Kim, Yoon Kee 한국재료학회 2016 한국재료학회지 Vol.26 No.8
In order to reuse the photocatalyst and enhance the photolysis efficiency, we have used atmospheric pressure dielectric barrier discharge (APDBD) to clean and activate $TiO_2$ powder. The photocatalytic activity of the $TiO_2$ powder before and after APDBD treatment was evaluated by the degradation of methylene blue (MB) in aqueous solution. The apparent reaction rate constant of photolysis of the first sample of reused $TiO_2$ cleaned by APDBD improved to a level up to 0.32h-1 higher than the 30 % value of the initial $TiO_2$ powder. As the number of photolysis reactions and APDBD cleanings increased, the apparent rate constants gradually decreased; however, the fourth photolysis reaction still showed a value that was greater than 10% of the initial value. In addition, APDBD treatment enhanced the process by which $TiO_2$ effectively adsorbed MB at every photolysis stage.
스마트 축사에서의 실효적인 암모니아 모니터링을 위한 센서사양 및 유지관리 기준 제안
강정아(Kang Jeong-A),배재영(Bae Jae-Young),곽영훈(Kwak Young-Hoon),신학종(Shin Hak-jong),문선혜(Mun Sun-Hye),허정호(Huh Jung-Ho) 한국태양에너지학회 2022 한국태양에너지학회 논문집 Vol.42 No.6
To implement smart livestock operations based on information and communication technology, a field monitoring environment based on measured data must be established. Ammonia should be managed more carefully than other environmental monitoring items because it is related to the comfort and production of livestock. Moreover, it is related to odor complaints and environmental protection issues. However, existing studies that propose ammonia measurement standards for each purpose differ from one another or are unclear, and ammonia sensors in the actual field have problems such as durability and management constraints; nonetheless, there is a lack of research on these aspects. Accordingly, for effective ammonia monitoring of smart livestock operations, the necessity of ammonia monitoring for smart livestock operations is first presented, after which a plan for ammonia monitoring of smart livestock operations, supplemented with sensor specifications and maintenance standards, is proposed. This study presents a clear measurement standard based on a comprehensive literature review, as well as an effective monitoring standard reflecting field operation information. This can lead to reliable ammonia data collection and can be a starting point for smooth smart livestock operation.
강정아(Jeong A Kang),문선혜(Sun Hye Mun),곽영훈(Young Hoon Kwak),허정호(Jung Ho Huh) 대한설비공학회 2021 대한설비공학회 학술발표대회논문집 Vol.2021 No.6
The importance of a pleasant environment is increasing due to the increase in occupancy time of residential buildings, and the energy performance of buildings required by the government is also increasing. Residents behavior is a factor that has a considerable influence on building energy, and although there is high uncertainty, it can act as an advantage in reducing building energy. This uncertainty of resident behavior can be caused by the fact that residential buildings do not have standardized behavior patterns unlike business buildings. The purpose of this study is to classify the behavioral patterns of non-standardized residential buildings into similar patterns by using the clustering technique during machine learning, and also to analyze the characteristic conditions according to the classified patterns. It is believed that the methodology and results used can be effectively used for predicting behavioral patterns and energy according to conditions that will occur in buildings in the future. Behavior data clustering was performed based on the occupancy behavior data of residential buildings measured for 20 days in the intermediate period. Among the machine learning algorithms, K-means Time Series Clustering was used, and the characteristics of each cluster were analyzed according to the classification properties.