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김윤지,Kim, Yunji 대한지구과학교육학회 2021 대한지구과학교육학회지 Vol.14 No.2
We are to introduce an example of ESD in connection with SDGs through liberal arts courses opened at the College of Education. We analyzed the awareness of the carbon footprint expressed by 42 preservice teachers in a class designed in connection with SDGs 13 goal, 'climate action'. The pre-service teachers wrote a carbon diet diary, a checklist for the level of practice that emits carbon in daily life, and freely expressed the source and proportion of their carbon emissions through the carbon footprint drawing activity. In items of electricity use, public transportation use, and garbage disposal, the level of practice was positive, but water use was analyzed in a negative way. The pre-service teachers who expressed the carbon footprint in 2-3 items reached a majority, showing limitations in recognizing the carbon emission situation in their daily life. Pre-service teachers will be the main actors of education on the environmental issues of the earth at the school site, and the carbon literacy of pre-service teachers will directly or indirectly affect students. We hope that various ESD programs linked to the 17 SDGs will be developed and applied to the educational field to contribute to sustainable global environmental education.
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CFD에 의한 선박용 DPF/DOC내 배기가스의 유동 균일도 및 특성 연구
김윤지,한단비,백영순,Kim, YunJi,Han, Danbee,Baek, Youngsoon 한국청정기술학회 2019 청정기술 Vol.25 No.2
As air pollution becomes more serious due to the increased number of diesel vessel operations, ship regulations on harmful emissions strengthen. Therefore, the development of a diesel exhaust after-treatment system for ships is required, and the higher the flow uniformity of the exhaust treatment system, the higher the treatment efficiency. With the computer software ANSYS Fluent, pressure drop and flow uniformity were used in this study to simulate flow rate with and without a baffle in both a Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF) system. The system pressure drop was found to be 38 to 40 mbar in the existing system condition, and the flow uniformity was approximately 84 to 92% at the inlet and outlet of the DOC. When the baffle was installed inside the system, the pressure increased and the flow uniformity was lowered due to an increase in flow rate. When the exhaust gas flow was reduced by 50% from $7,548kg\;h^{-1}$ to $3,772kg\;h^{-1}$, the flow uniformity at the inlet and outlet of the DOC increased by approximately 1 to 3% due to the low flow rate. In the case of DPF, the flow uniformity of exhaust gas was 98 to 99% because the uneven flow proceeded after uniformly flowing from the DOC.
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하구둑이 낙동강 하구 표층 퇴적물 생규소(BSi) 분포에 미치는 영향
김윤지,안순모,KIM, YUNJI,AN, SOONMO 한국해양학회 2017 바다 Vol.22 No.4
Current study is a part of the efforts to assess the estuarine barrage effects on the coastal ecosystem induced by the Si flux changes. Surface sediments from Seomjin and Nakdong estuary and sediment cores from Nakdong estuary was analysed to investigate the effect of estuarine barrage on the distribution of grain size, organic matter (loss on ignition: LOI) and biogenic silica (BSi). The samples of Seomjin estuary were collected in March, 2015 and those of Nakdong estuary were collected in November, 2014. Generally, the longitudinal distribution of grain size, LOI and BSi in Seomjin estuary, natural estuary, was gradually changed. However mud (silt and clay), LOI and BSi increased from station mid-estuary where tide reaches year-round. The distribution of grain size, LOI and BSi in Nakdong estuary, however, were entirely different between inside and outside of estuarine barrage. The mud percentage and LOI were low and consistent in inside of the barrage except R05, inside of right gate, yet those of outside of the barrage were higher and varied by adjacent sluices. Mud, LOI and BSi of ND1 and ND2 decreased immediately after the construction of Nakdong estuarine barrage due to disturbance of sediment and decrease of sediment supply. To exclude the physical effects by the barrage, BSi excess ($BSi_{exc}$) was calculated using regression equation of BSi-LOI and BSi-mud of Seomjin estuary. $BSi_{exc}$ of Seomjin estuary decreased gradually from upper estuary to lower estuary. $BSi_{exc}$ of Nakdong estuary were positive in inside of the barrage and negative in outside of the barrage. BSi retention and shift of species composition of diatom by the barrage would affect $BSi_{exc}$ distribution. Before the construction of Nakdong estuarine barrage, $BSi_{exc}$ of ND2 was negative and consistent owing to high mud sedimentation. After the construction, $BSi_{exc}$ of ND2, however, fluctuated due to continuous disturbance of sediment due to construction of Eulsuk bridge and East gate.
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K-dance의 주제적 개념과 미래적 방향 : Feel the rhythm of Korea1 영상물을 중심으로
김윤지(Kim Yunji) 한국국회학회 2022 한국과 세계 Vol.4 No.1
한류 콘텐츠의 탄생과 확산이 융성되는 현시점에서 본고는 K-dance의 주제적 개념 정립을 토대로 ‘Feel the rhythm of Korea1’ 춤의 성공 원인을 도출하여, K-dance의 미래 방향성을 도모하고자 했다. 그 결과, 첫째 K-dance의 주제적 개념은 전형典型적으로 내려온 한국춤에서부터 한국 문화 창달의 힘으로 한국인에 의해 창착된 춤까지를 아울러 가리키며, 한국 문화의 정체성 및 세계적인 비전을 통해 인류의 공감을 형성할 수 있는 콘텐츠라고 할 수 있다. 둘째, ‘Feel the rhythm of Korea1’의 춤은 이날치 수궁가에 맞춰서 춤의 원리·표현 양식·구성·의도 요소들을 기발, 코믹, 자유롭게 교차시켜서 보여준다. 한국과 세계 사이, 일상과 예술 사이, 전통과 현대 사이의 경계선 위에서 고도의 음악적 분석과 그에 따른 동작의 수행으로 탄생한 이 춤은 한국을 제대로 알렸다. 인간의 보편적인 리듬과 움직임을 토대로 세계적인 감각, 니즈, 코드 요소들을 가미하여 한국적인 완성체로 끌어냈다. 이는 이 춤을 K-dance의 성공적인 사례로 꼽는 이유이기도 하다. 셋째, 안무자의 철학, 자유자재한 표현, 음악에 대한 이해, 숙련된 동작 기술의 채용, 보편적 기호의 포착, 현대적 니즈의 반영을 토대로 그것을 조화롭게 춤으로 만들어 낼 수 있는 창작력이 K-dance 성공의 핵심 열쇠이다. 더불어 K-dance의 자유로운 도전을 장려해 주고, 창작자 육성과 지원에 주력하고, 해외 시장 진출의 전략적인 지휘가 가능한 기획 시스템이 구축된다면, K-dance 미래는 더욱 기대해도 좋을 것이다. This Study derives the reason for success of ‘Feel the Rhythm of Korea1’ by identifying the thematic concept of K-dance and seeks to gauge the future development of K-dance. The results are as follows. First, K-dance’s thematic concept is a genre that is created as a Hallyu content which includes not only Korean dances, but also new dances created by Koreans. It is a daring movement that aims to challenge the global vision by displaying the creative prowess of Korean culture with the creation of new dances, rather than showing off what already exists. Second, ‘Feel the Rhythm of Korea1’ is a dance to Inalchi <Sugungga> music that freely intersects dance principles, expressions, compositions, and purposes in a creative and humorous way. It played a vital role in publicizing Korea by creating movements based on musical interpretation that lingers on the boundaries between Korea and the world, daily life and art, and the traditional and the contemporary. Third, the major reasons for the success of K-dance are the choreographer’s philosophies, freedom of expression, understanding of music, mastery in movements, identification of general signals, and the application of contemporary demand to create a harmonious dance. Moreover, we can anticipate a brighter future for K-dance if we continue to encourage creative innovations of K-dance, rear and support choreographers, and construct a planning system that could strategically lead the expansion of K-dance to global markets.
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김윤지(Yunji Kim),강정원(Jeongwon Kang),최재웅(Jae Ung Choi),박찬미(Chan Mi Park),우한준(Han Jun Woo) 한국습지학회 2019 한국습지학회지 Vol.21 No.2
낙동강 하구는 다양한 하구개발로 인해 수리 및 지형적인 변화를 겪고 있는 지역으로, 이러한 물리화학적 변화는 낙동강 하구 생태계에 영향을 주고 있다. 특히 낙동강 하구에 도래하는 겨울철새들의 주요 먹이원인 새섬매자기 군락지 및 개체수는지난 10여년간 지속적인 감소를 보이고 있다. 낙동강 하구의 새섬매자기 개체수 감소 원인 파악을 위해 6개 정점에서 2018 년 6월과 8월에 약 30cm의 주상퇴적물을 채취하였다. 퇴적물은 사질이 80% 이상으로 매우 조립하였으며, 평균 염분은 6월17.8±1.12 psu, 8월 18.4±1.83 psu였다. 을숙도 퇴적물의 탄소안정동위원소비(δ13C)는 평균 –24.7±0.59‰로 하구기원입자성 유기물 특성을 보였다. 표층(0~1cm)에서 δ13C는 –24.0 ~ -22.6‰로 새섬매자기 뿌리와 줄기의 δ13C(-25.2±0.0 5‰) 보다 다소 높았다. 이는 해양 유기물의 유입이 원인으로 판단된다. 식생지역과 비식생지역의 물리화학적 특성은 유의미한 차이를 보이지 않았으며, 이를 통하여 낙동강 하구 새섬매자기 군락지 환경이 비식생 지역과 거의 동일함을 유추할 수있다. 결론적으로 낙동강 하구 퇴적물은 조립하고 염분이 15 psu 이상으로, 새섬매자기 생육에 불리한 환경이 유지되고 있음을 유추할 수 있다. 낙동강 염분 상승은 낙동강 하구둑 방류량의 감소가 원인으로 판단되며, 낙동강 하구 염분 상승이 새섬매자기 생산량의 점진적 감소에 영향을 주었을 것으로 보인다. The Nakdong Estuary has experienced hydraulic and topographic changes over the last century, which have had negative effects of habitat loss and fragmentation. The population of Scirpus planiculmis, a major food plant for wintering birds in Nakdong Estuary, has decreased over the last decade. To identify factors that influence S. planiculmis population, 6 short core samples (about 30cm) were collected in June and August, 2018. The sand percentage was over 80% in every samples and the average sediment salinity in June and August were 17.8±1.12 psu and 18.4±1.83 psu, respectively. δ13C of sediment cores varied from -25.4‰ to -22.6‰ which fall within the estuarine particulate organic matters. In cores collected in Eulsuk area, the highest δ13C values were observed at the surface (0~1cm) indicating inputs of marine POM (particulate organic matter) to the Nakdong Estuary. No significant difference between vegetation and non-vegetation stations was observed in every items we investigated which might indicate that the physicochemical environment of vegetation area is almost same as that of non-vegetation area. Therefore, the high sand percentage and sediment salinity of Nakdong Estuary might affect the reduction in S. planiculmis population.
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