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Cr이 담지 된 알루미나, SBA-15 촉매에서 n-부탄의 사화적 탈수소화 반응
신지현 ( Jin Hyun Shin ),신진호 ( Jin Ho Shin ),조득희 ( Deug Hee Cho ),고문규 ( Moon Kyu Ko ) 한국화학공학회 2013 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.51 No.3
n-부탄의 산화적 탈수소화 반응을 위한 Cr 촉매가 연구되었다. 촉매의 제조는 메조포러스 물질인 SBA-15와 γ-alumina 지지체로 사용되었고 지지체의 표면 위에 Cr 산화물을 담지시키는 방법은 함침법이 사용되었고, Cr의 분산성을 높이기 위하여 구조 증진제로 Ti, Zr를 분산시킨 위에 Cr을 담지하여 특성분석 하였다. 촉매특성은 XRD, FT-IR, UV-Vis, ICPAES, SEM, TEM 등을 이용하여 분석하였다. Cr 촉매에서 넓은 표면적을 가진 지지체의 효과는 전환율에 큰 차이를 보이지 않고 Ti, Zr이 증진제로 사용된 촉매의 경우 trans-2-부텐의 선택도가 높아짐을 보였다. Oxidative dehydrogenation of n-butane over mesoporous Cr catalysts were studied. Catalysts were prepared by Cr impregnated method over Ti or Zr dispersed mesoporous support such as SBA-15, γ-alumina and characterized by XRD, SEM, TEM, FT-IR UV-Vis and ICP-AES. The effect of high surface area was not noticed appreciably in terms of conversion, but for Cr catalysts with Ti and Zr-incorporated on SBA-15 and γ-alumina. showed high selec-tivity if trans-2-butene.
신지현(Shin, Ji-Hyun),김가영(Kim, Ka-Yeong),이진현(Lee, Jin-Hyun),김선숙(Kim, Sun-Sook),조영흠(Cho, Young-Hum) 한국건축친환경설비학회 2015 한국건축친환경설비학회 논문집 Vol.9 No.6
The purpose of this study was to analyze the validity of score on Solar Heat Gain(SHG) per envelope living room area of the energy-saving design standards. According to the equation suggested by design standards, Solar Heat Gain(SHG) is influenced by the kind of windows and the presence or absence of the awnings. The result of this study were as follows ; whether the shadings are installed or not does not have a significant impact on energy consumption, and energy consumption difference depending on the scores were also negligible.
사무용 건축물의 차양 설치 비율에 따른 냉난방 에너지 소요량 분석에 관한 연구
이진현(Jin-Hyun Lee),신지현(Ji-Hyun Shin),김선숙,조영흠(Young-Hum Cho) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.6
If you do not have well-established plans for natural light, it is likely to inhibit efficiency and be offensive to the people. For people, the natural light is needed to ensure proper illumination secure and energy saving through the use of solar energy. It is awning that allows to effectively control the solar radiation. In this study, we intends to evaluate the effect on energy consumption by the application of shading device. For these purpose we supposed the models which are composed of the several rooms that have enough size of windows. Then we analyzed the energy consumption according to 2 criteria using ECO-2 program. First, Ratio of awning installation. Second, awning length and installation rate. The results of this study are follows. : 1) A building that get high point using certificate regulation of environment friendly building is not related to eco-friendly building. 2) As the length of shade is longer, the amount of cooling energy consumption is lower.
비주거 건축물의 기밀성능에 따른 냉난방 에너지 소요량 평가
이진현(Jin Hyun Lee),신지현(Ji Hyun Shin),조영흠(Young Hum Cho) 대한설비공학회 2017 대한설비공학회 학술발표대회논문집 Vol.2017 No.6
As energy conservation is becoming more important globally, various efforts are being made in Korea to reduce greenhouse gas emissions. One of them is developing Building Energy integrated support systems for the spread of low-energy buildings. One of the services provided by this system, Energy Efficient Alternative Support System, provides an alternative for more energy saving design in the construction, equipment and renewable sector during the construction and remodeling of the building, and also provides economic evaluation. Energy Conservation Measures provided by this program are currently under construction, but only for some. In addition, various studies on the airtightness performance have already been carried out, but they are limited to the measurement of the test method. Therefore, the purpose of this study is to evaluate air conditioning energy requirement according to the change of airtightness performance by using ECO2 centering on energy conservation design standard in order to construct airtightness performance as an energy conservation measures.
모-자 미술치료가 맞벌이가정 외동자녀의 모-자 의사소통과 또래관계에 미치는 효과
남진숙(Nam Jin-sook),신지현(Shin Ji-hyun) 한국미술치료학회 2020 美術治療硏究 Vol.27 No.6
본 연구는 모-자 미술치료가 맞벌이가정 외동자녀의 모-자 의사소통과 또래관계에 미치는 효과를 살펴보는데 그 목적이 있다. 연구대상은 경기소재 J초등학교의 3학년생 아동과 아동의 어머니 5쌍을 대상으로 2017년 8월부터 2017년 11월까지 주 1회 90분씩 총 12회기의 프로그램을 진행하였다. 측정도구는 모-자 의사소통 척도와 새둥지화(BND), 또래관계기술 척도를 사용하였고 사전․사후로 측정한 결과를 분석하였다. 본 연구결과는 다음과 같다. 첫째, 모-자 미술치료는 맞벌이가정 외동자녀의 모-자 의사소통과 또래관계에 통계적으로 유의한 효과를 보였고, 새둥지화(BND)변화를 분석한 결과 모-자 긍정적 의사소통의 변화를 볼 수 있었다. 둘째, 모-자 미술치료의 진행과정에서 맞벌이가정 외동자녀의 또래관계에 긍정적인 변화를 볼 수 있었다. 셋째, 모-자 미술치료가 맞벌이가정 외동자녀의 모-자 의사소통을 증진하고 또래관계 개선에 회기별 유의한 변화가 있었다. 따라서 모-자 미술치료가 맞벌이가정 외동자녀의 모-자 의사소통과 또래관계를 향상시킬 수 있다는 점에 임상적인 가치가 있으며 앞으로 다양한 미술치료의 효과 판정을 위한 새둥지화 적용 타당도와 신뢰도의 정밀도를 확인하고 높일 필요가 있다고 본다. The purpose of this study was to examine the effects of mother-child art therapy on mother-child communication and peer relationships of only child in dual-income families. An experiment group consisting of mother-child pairs for a total of ten people was formed at J Elementary School in Gyeonggi Province in Korea. Total of 12 programs were conducted once a week for 90 minutes from August 2017 to November 2017. The measurement tools used included a mother-child communication scale, BND and a peer relations scale, The pre-post measurement results were analyzed. Consequently, mother-child art therapy showed statistically significant effects on mother-child communication and peer relations, and after analyzing the BND, we could see changes in parent-child positive communication. In addition, positive changes in mother-child communication and peer relations were seen in the process of mother-child art therapy. Therefore, it is clinically valuable to know that mother-child art therapy has been able to promote mother-child communication and improve peer relationships among only child in dual-income families, and we hope that it will be a useful program to help this population in the future based on this research.