• 플랜트 저널
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• 제14권1호
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• pp.47-51
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• 2018

본 연구에서는 석탄화력발전의 출력 감소가 계통한계가격과 온실가스감축량에 어떻게 영향을 미치는지 분석하였다. 분석방법은 국영 발전회사에서 이용하는 전력거래예측프로그램을 이용하였으며 전력계통의 운영조건은 제7차 전력수급기본계획의 전력수요와 전원구성을 근거로 하였다. 분석결과 전체 석탄화력발전의 최대출력을 29 [%]까지 감소한 경우 계통한계가격은 감소전과 비교하여 12 [%p] 상승하고 온실가스 배출량은 9,966 [kton] 감축되었다. 또한 석탄화력발전기 전체 용량의 30 [%]에 해당하는 저효율 석탄화력발전기 16기를 정지한 경우 계통한계가격은 14 [%p] 까지 증가하였고 온실가스 배출량은 12,574[kton]까지 감축 가능함을 알 수 있었다.

• 한국토양비료학회지
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• 제28권3호
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• pp.241-248
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• 1995

연작(連作)으로 재배되고 있는 꽈리풋고추 비닐하우스 재배지토양의 화학적 성질을 진단하고 이와 작물생육과의 관계를 밝힐 목적에서 충남 당진군내 36개 농가포장을 조사 분석한 결과를 요약하면 다음과 같다. 1. 토양화학성분중 가장 높은 빈도(頻度)를 보인 범위 및 비율은 pH 6.1~6.5(36%), OM 1.6~2.0%(31%), 유효인산 601~800mg/kg(39%), CEC 12.1~14.0 c mol/kg(39%), clay 16.1~18.0% (50%), 전기 전도도 EC 2.0 dS/m 이하가 44%로 많았다. 2. 풋고추 수량은 pH, CEC, 유기물 함량, 점토 함량과는 고도의 정산관(正相關)이 있었고 EC와는 고도의 부(負)의 상관(相關)을 보였다. 3. 전기전도도 EC값은 CEC와 파장 높은 부상관($r=-0.81^{**}$)이 있었고, 점토함량 또는 유기물 함량과도 고도의 부상관이 있었다. 4. 토양화학성분과 EC와의 상관관계에서 EC를 2.0dS/m 이하로 낮추는데에는 점토 18%, 유기물 2.3%이상이 되어야 한다는 것을 나타내었다.

• 한국의상디자인학회지
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• 제17권1호
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• pp.117-130
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• 2015

As environmental issues have become a worldwide concern after the 20th century, the idea and the term of 'green growth development' has become familiar to the public. After 2008, the green growth development dramatically became an important ideology in Korea; thus industries, studies and product investments in relation are in active progress. Following the trend, the latter major unit of the middle school textbook "Technology & Home Economics" was named the revision of elementary, middle and high school textbooks in 2009. The learning goal of 'green' or 'eco-friendly' of the revised edition of the textbook will guide the middle school students to have better understanding of the issues of clothing habits and the environment. Furthermore, students will be able to apply the 'green' concepts in their real life and put eco-friendly clothing habits into action. Thus, the practice of effective learning will depend on the quality of the current issue of the textbook. Therefore this study analyzes the eco-friendly contents of the semi-unit from 7 different textbooks and presents an example of textbook production to the preliminary teacher of home economics.

• 한국전자통신학회논문지
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• 제8권2호
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• pp.249-253
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• 2013

본 논문에서는 그린 IT 분야에 대한 특허 정보를 이용하여 분야별 기술 경쟁력 분석과 분야에 적용되는 기술의 다양성 및 분야간 유사도를 분석하였다. 이를 위해 그린 IT를 전기 전자기들의 에너지소모량의 절감 및 IT기술을 기반으로 전력 소비를 줄이는 친환경적인 기술을 개발하는 분야로 범위를 한정하여, 절전기기 및 시스템, 조명제어시스템, 스마트 전력관리시스템, 클라우드 컴퓨팅, 그린하우스/에코시스템으로 한정하여 특허 분석을 수행하였다. 그 결과 절전기기 및 시스템 분야의 기술개발이 가장 활발히 이루어지고 있는 것으로 나타났다. 기술분야 간 기술적 유사도의 경우, 절전기기 제어 및 시스템분야와 클라우드 컴퓨팅 분야와 기술적으로 유사한 것으로 나타났으며, 조명제어시스템과 그린하우스/에코시스템 및 스마트 전력 관리 시스템이 기술적으로 유사한 것으로 분석되었다.

• 한국산업융합학회 논문집
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• 제23권6_2호
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• pp.1067-1074
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• 2020

Green houses provide a more conditioned and warmer environment than the outside environment due to insulation. Currently used insulation materials include soft film (PVC, PE, EVA), foamed PE sheet, non-woven fabric, reflective film, and multi-layer insulation curtain, but there are many disadvantages and to compensate for this, silica aerogel insulation material with excellent warmth, light weight, and small volume Research using is in progress. In this study, the temperature change of the quadruple-structure green house and the temperature change in the dual-structure green house of soft film and silica airgel were investigated. The daytime temperature change was highest in A and A2 (soft film) at 10 to 16:00 after sunrise, but showed the lowest temperature at 17 to 18:00, which is the sunset time, showing the greatest change. The airgels of D and D2 showed the smallest change in temperature after sunrise and right after sunset. That is, it can be said that the airgel is hardly affected by external temperature. The temperature change at night was highest in D and D2 (aerogel) for both quadruple and dual structures. The temperature at night was measured higher in the quadruple structure than in the double structure. As for the ratio of the internal temperature to the external temperature for the quadruple structure and the double structure, D (aerogel) was not affected by the external temperature during the day in the quadruple structure and the double structure. D (Aerogel) seems to be able to reduce the damage caused by high temperatures in summer due to the high thermal insulation effect of the airgel, as the temperature rises above 4℃ at night. And in winter, it helps to save heating costs due to less heat emitted to the outside.

• 한국식품영양과학회지
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• 제34권8호
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• pp.1239-1245
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• 2005

노지 및 시설에서 재배된 한라봉의 과피에서 냉압착법에 의해 추출한 정유의 향기성분을 동정하였다. 노지에서 재배된 한라봉 정유에서 44개의 향기성분(99.7$\%$)이, 시설 한라봉 정유에서 45개의 성분(99.4$\%$)이 동정되었으며, (E)-lim-onene-1,2-epoxide와 neral은 노지 한라봉 정유에서만 동정되었고, $\beta$-cubebene, $\beta$-elemene, decyl acetate의 세 성분은 시설 한라봉 정유에서만 동정되었다. 노지 및 시설 한라봉 정유에서 동정된 향기성분 중 limonene이 86$\%$이상의 가장 높은 비율로 함유된 성분으로 확인되었으며, 그 다음으로 myrcene과 sabinene이 2$\%$이상으로 높게 함유된 것으로 확인되었다. 노지 및 시설 한라봉 정유의 향기성분 특성을 나타내는 가장 큰 차이는 linalool의 함유량으로 노지 한라봉 정유의 함유량(1.2$\%$)이 시설정유의 함유량(0.5$\%$)의 2배 이상으로 높았다. 향기 성분의 기기분석과 함께 신선한 한라봉 과육 및 과피의 관능평가를 실시하였다. 신선한 한라봉의 향기특성에 대한 관능평가 결과는 한라봉 과육 및 과피 모두에서 노지에서 재배된 한라봉이 시설에서 재배된 것에 비해 상대적으로 강한 향기특성을 지니는 것으로 평가되었다. 노지 한라봉 과육은 단맛이, 시설 한라봉 과육은 신맛이 유의적으로 높게 평가되었다. 또한, 향과 맛을 고려한 전체적 선호도에서도 노지에서 재배된 한라봉이 높게 평가되었다. (p<0.01).이러한 결과는 노지 한라봉 정유에서 유의적으로 높은 linalool의 함유율 및 재배방법의 영향을 받은 향기성분의 구성비율이 관능평가에 의한 과피 및 과육의 향기특성 결과에 영향을 주는 것으로 판단되었다.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 춘계학술발표대회 논문집
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• pp.267-270
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• 2005

The purpose of this study was to make clear the indoor environmental efficiency of front balcony 'in apartment houses during winter. The field measurements of indoor environmental elements were carried out at an ordinary house with an existing front balcony and a house renovated the front balcony into the living room. The measurements in two-subject houses were taken on simultaneously the 20$^{th}$ ${\sim}$ 21$^{th}$ of January 2003. As results, the averages indoor temperature in the ordinary house and the renovated house were same as 23.6${\circ}$C, and the averages globe temperature in two houses were same as 23.7${\circ}$C. But, estimated heating time of the renovated house was longer than that of the ordinary house. The daily ranges of indoor temperature and globe temperature in the renovated house were wider than the ordinary house. The daily ranges of indoor temperature and globe temperature in the renovated house was longer than that of the ordinary house. The uniformity ratio range of daylight in the ordinary house were calculated at 1/3.4${\sim}$1/6.2, but those of the renovated house were 1/6${\sim}$1/16.2. Therefore. it was found that indoor temperature, globe temperature and uniformity ratio of daylight in the ordinary house maintained more constant than the renovated house by green house effect and earning effect of front balcony.

• 한국실내디자인학회논문집
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• 제21권6호
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• pp.212-223
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• 2012

The "Eco-friendly", "Green" concepts was began around 1992 after the Rio Environmental Summit, and the need for sustainable development globally widespread. The green building certification system was began around 2000 and the concept of green building was started in the late 1990s. The green building, which welcomes a period of radical change, is for the survival of the Earth "climate change" and reducing energy consumption in building sector. In this architecture of eco-friendly concept, the green building is rapidly expanding and existing as a ecological environment preservation. Moreover, the realization of zero energy house is to mandate for new buildings in 2025. The aim of further eco-friendly is through the prior ecosystems to restore and product energy for the 9 Green Building model houses in this paper. Building in the concept of ecology is to show about change into 7R's from the 3R's. The "Reduce", "Reuse", "Recycle" consisting of "3R's" is correlated with the traditional to the present Green Building Design. U.S. NCARB (National Council of Architectural Registration Boards) change into the concept of 7R's as "Receive", "Restore", "Respect" and "Remember", added to "3R's". In this paper, the 9 Green Building model houses do not meet the criteria of 7R's. But, the Green Tomorrow of Samsung C & T Corporation meet the 6 criteria for 7R's. This company is most comfortable at low carbon Green Building model houses. Conclusionally, introduction of eco-friendly technologies and amenities for the health of human and natural community life is to advance eco-friendly construction and enhance brand value of housing. By the way, The problem of eco-friendly architecture is initial investment and maintenance. Therefore, eco-friendly architecture and government has to try solving of this difficulty.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2008년도 한국우주과학회보 제17권2호
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• pp.24.2-24.2
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• 2008

We have examined the relative contributions of representative space weather proxies (geomagnetic aa index) to global warming (Global temperature anomaly) and compared them with that of green house effect characterized CO2 content from 1868 to 2005. For this we used Hadcrut3 temperature anomaly (Ta) data, aa index taken at two anti-podal subauroral stations (Canberra Australia and hartland England), and the CO2 data come from historical ice core records. From the comparison between Ta and aa index, we found several interesting results: (1) the linear correlation coefficient between two parameters increases until 1990 and then decreases rapidly, and (2) the scattered plots between two parameters shows different patterns before and after 1990. A partial correlation of Ta and two quantities (aa, CO2) also shows that the geomagnetic effect (aa index) is dominant until about 1990 and the CO2 effect becomes much more important after then. These results imply that the green house effect become very important since at least 1990. For a further analysis, we simply assume that Ta (total) = Ta (aa) + Ta (CO2) and made a linear regression between Ta and aa index from 1868 to 1990. A linear model is then made from the linear regression between energy consumption (a proxy of CO2 effect) and Ta (total) - Ta (aa) since 1990. This linear model makes it possible to predict the temperature anomaly in 2030, about 1 degree higher than the present temperature, which is much larger than in the previous century.

• 수산해양기술연구
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• 제50권1호
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• pp.58-66
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• 2014

The purpose of the study is to estimate the Green-House-Gas (GHG) emissions from domestic eel farm in the water recirculation system or still-water system by the assessment of energy consumptions and GHG emissions for establishing to reduce standards of GHG from a sustainable perspective. GHG emission components as seeds, feed, fuel, electricity, fixed capital, fish respiration, and others were analysed at the different culture type between water recirculation system and still-water system by 3 stage farm size of small, medium, large scale. The result showed that the mean GHG emission of the eel farm was $18.7kg{\cdot}CO_2$ in the stage of production per fish 1kg at different culture type and farm size. Therefore it could be useful for policy, planning, and regulation of aquaculture development with establishing GHG reduction standards.