• 대한건축학회논문집:구조계
• /
• 제34권2호
• /
• pp.75-82
• /
• 2018

Green roof in Korea has been recognized as part of landscape area and local governments enacted municipal ordinance for supporting green roof thereby assisting part of expenses spent for green roof within a range of budget for buildings which are eligible for the green roof support of existing buildings. However, it is necessary to enforce a regulation of mandatory green roof for new buildings in order to expand green roof application and provide a variety of assistances such as subsidy payment, tax relief, and mitigation of floor area ratio-related regulation as done in other advanced nations. In particular, LEED(Leadership in Environmental and Energy Design) in the USA applies additional point directly for green roof in terms of the reduction in heat island effects. For example, the following items are beneficial to have additional points: habitat preservation or restoration, external space, rainwater management, reduction in outdoor water usage, minimum energy performance, and optimum energy performance. In addition, the BREEAM(Building Research Establishment Environmental Assessment Method) in the UK specifies green roof as one of assessment items to be complied in terms of diversity of species. As such, LEED and BREEAM reflect direct and indirect effects of green roof on assessment criteria, which suggest a direction to green building certification criteria in Korea where only additional points are given for green roof according to soil depth.

• 한국식품조리과학회지
• /
• 제16권6호
• /
• pp.568-576
• /
• 2000

우리나라 재래종 순무인 강화도산 청순무(뿌리 껍질의 색이 녹색)와 적순무(뿌리 껍질의 색이 자색)두 가지 품종으로 김치를 담구어 실온에서 24시간 방치후 $0^{\circ}C$에서 70일까지 경시적으로 이화학적, 관능적 특성을 분석한 결과는 다음과 같다. pH는 담금 직후 청순무 김치가 적순무 김치보다 약간 높았으나, 숙성 15일 이후부터 청순무 김치가 적순무 김치에 비해 낮았으며, 산도 역시 숙성 15일 이후부터 급격히 증가하여 적순무 김치보다 높았다. 적정 산도인 0.6%에 도달하는 기간이 청순무 김치는 숙성 30일, 적순무 김치는 숙성 40일이었다. 환원만 함량은 두 품종 모두 숙성이 경과됨에 따라 서서히 감소하였다가 청순무 김치는 숙성 30일 이후에 적순무 김치는 숙성 40일 이후에 환원당 함량은 약간 증가하는 경향을 나타내었다. 순무 김치 숙성 기간중의 염도는 두 품종 모두 유사하였으며, 가용성 고형물 함량은 6-7.4$^{\circ}$Brix이었으며 청순무 김치가 적순무 김치보다 높게 유지되었다. 유산균수는 두 품종 모두 숙성 15일 이후부터 급격히 상승하여 숙성 30일에서 45일 경까지 높았다가 그 이후 서서히 감소되었으며 청순무 김치가 적순무 김치에 비해 약간 높았다. 안토시아닌 함량은 적순무 김치가 청순무 김치에 비해 많았다. 김치 숙성 중 순무의 색상은 Hunter system의 a값이 숙성기간이 경과될수록 두 품종모두 서서히 증가하였다가 숙성 70일에 감소하는 경향을 나타내었다. TPA측정 결과 숙성기간이 경과됨에 따라 두 품종 모두 경도, 파쇄성 , 씹힘성이 감소되었으며, 청순무 김치가 적순무 김치에 비해 경도, 파쇄성, 씹힘성이 낮았다. 관능검사 결과, 청순무 김치가 적순무 김치에 비해 '상큼한 신냄새', '단맛', '신맛', '감칠맛' 및 '탄산미' 점수는 높았으나 '경도' 및 '씹힘성'은 낮았다. '다즙성'은 두 품종간의 차이는 없었다 '전체적인 수용도' 점수는 적순무 김치의 경우, 숙성 40일 및 45일에 유의적인 차이 없이 높은 값(8.8-8.9점)을 나타내었고. 청순무 김치는 숙성 30일, 40일 및 45일에 유의적인 차이없이 높은 값(8.5-9.1점)을 나타내었다. 청순무 김치는 숙성 60일에는 3.4점으로 매우 낮았으나 적순무 김치는 숙성 70일에도 6.3점을 나타내었다.

• Journal of the Korean Wood Science and Technology
• /
• 제40권5호
• /
• pp.319-326
• /
• 2012

Han-green building is one of the modernized Korean traditional buildings developed by Korea Forest Research Institute. This building was developed to increase the competitiveness of Korean traditional building using state-of-art technologies; hence Han-green building has the inherent characteristics of traditional building such as exposed wood frame in wall. Because of discontinuity in wall by the exposed wood frame, there is a concern on heat-air leaking in terms of energy performance. In this study, air-tightness of Han-green building was evaluated to investigate the influence of gaps between frames and in-fill walls. Blower door test was carried out to evaluate the air-tightness, and air-change rate (ACH50) was evaluated by averaging four set of pressurization and depressurization test. The air-change rate of Han-green house was 5.91 $h^{-1}$. To improve energy performance of Han-green house, thermal infrared images of Han-green house were taken in winter with heating to find out where the heat loss occurred. It was found that the building lost more heat through gaps between frames and in-fill walls rather than through other parts of this building. After covering all the gaps by taping, the blower door test was performed again, and the air-change rate was improved to 5.25 $h^{-1}$. From this analysis, it was concluded that the heated air can leak through the gaps between frames and walls. Therefore, when one designs the post and beam building with exposed frame, the detail design between frame and wall needs to be carefully dealt. However, Han-green building showed relatively high air-tightness comparing with other country research results.

• Korean Journal of Acupuncture
• /
• 제25권2호
• /
• pp.199-210
• /
• 2008

Objectives : This study was performed to investigate the effect of invasive laser acupuncture therapy with green light (LAT-G) at HT7(Sinmun), SP3(Taebaek) on the blood pressure in hypertensive rat induced by two kidney one clip. Methods : The experiments were performed on Sprague Dawley rats. 2K1C hypertension model was prepared by constricting the left renal artery with a sliver clip. Animals were divided into four groups, which were simple acupuncture treatment group with straight needle insertion on the square(AT-SS), acupuncture treatment group with reducing manipulation in the opposite channel direction(AT-RD), laser acupuncture treatment group with green light 532 nm, 10mW power in the opposite channel direction(LAT-G10) and laser acupuncture treatment group with green light 532 nm, 20mW power in the opposite channel direction(LAT-G20). The treatments were performed once per two days for 10 days. Results : Body weight was increased significantly in LAT-G20 group compared with AT-RD group. The blood pressure was significantly decreased in LAT-G20 and LAT-G10 groups compared with AT-SS group. Conclusions : These results suggest that green laser acupuncture therapy at SP3 ${\cdot}$ HT7 is more effective than straight needle insertion on the square for controlling hypertension. It is possible that invasive green laser acupuncture therapy (532 nm) can be used as a reducing method of the traditional acupuncture techniques.

• 한국조경학회지
• /
• 제33권5호통권112호
• /
• pp.83-93
• /
• 2005

Research was initiated to investigate turf performance under USGA soil system. USGA system 45 centimeters deep was built with rootzone layer, intermediate layer, and drainage layer. Six turfgrass entries were comprised of 3 blends and 3 mixtures from cool-season grasses (CSG). Turfgrass color and quality ratings were best in spring and fall, especially early May to early July and late August to early November. Kentucky bluegrass (KB) consistently produced the greatest performance, while perennial ryegrass (PR) the poorest. Intermediate turf performance between KB and PR was observed with tall fescue (TF). Among CSG mixtures it increased with KB but decreased with PR. There were considerable variations in summer turf Performance. No summer drought injury was found in KB and TF. However, PR showed poor performance through summer as compared with others. Among mixtures, it decreased with PR. It was suggested that PR mix in less than $20\%$ in the mixtures to have an acceptable quality in summer. Cultural intensity also affected it. With lowering mowing height, KB of rhizomatous-type in growth habit kept good quality, while PR and TF with bunch-type in growth habit poor quality. Mowing quality was greatly different among CSG. KB produced clean-cut surface, but PR unclean one. If had an intermediate mowing quality between KB and PR. A great difference in green color retention was observed among CSG. The longest CSG was PR that kept green for 339 days, while the shortest one TF for 267 days. KB continued to keep green for 290 days. The mixtures kept green in color for 292 to 315 days, depending on turfgrass mixing intensity. The greater the PR in content, the longer the green color duration. These results demonstrate that KB was the best and PR the worst among CSG grown in USGA system under a domestic climate, in regards of turf quality, color, mowing quality, summer turf performance and green color duration. KB and TF are most adequate for high-maintenance and low-maintenance area, respectively. In case of mixtures for high-quality turf, it was desirable to use KB-based mixture with PR of below $20\%$ in seeding rate.

• 산학경영연구
• /
• 제22권2호
• /
• pp.1-34
• /
• 2009

녹색성장정책은 환경(Green)과 성장(Growth)의 양립구조에서 벗어나 환경 그 자체를 새로운 성장동력으로 인식하고 환경과 성장의 선순환구조로 경제성장 패러다임을 전환시키는 것이다. 그러나 녹색성장정책은 국가에 따라 다소 상이하게 추진되므로 이러한 정책들을 살펴보고, 실제 일반인과 기업에서 이것을 어떻게 수용하는지 실증분석을 통하여, 우리나라 녹색성장전략을 제시하는데 그 목적이 있다. 실증분석 결과, 나타난 주요 시사점을 요약하면 다음과 같다. 첫째, 녹색성장정책은 단순한 환경문제를 해결하기 위한 정책이 아닌 범국가적인 전략 추진이 필요하다. 둘째, 녹색성장정책의 핵심부문으로서 에너지정책을 규정하고 단기적으로 성과가 가능한 에너지 사용의 효율화를 적극 추진하여야 한다. 셋째, 녹색성장정책에 IT활용을 적극적으로 추진하여 보다 장기적인 성과에 초점을 둔 전략 개발이 필요하다. 넷째, 우리나라의 실행계획의 수립은 녹색성장정책 추진에 따른 효율성과 직접적인 관련이 있으므로 매우 신중한 접근이 요구된다. 다섯째, 녹색성장정책을 사회변혁정책으로 다루어 범국민적인 여론 형성을 마련하여야 한다.

• 한국환경과학회지
• /
• 제25권10호
• /
• pp.1381-1387
• /
• 2016

This study aims to establish baseline data for sustainable monitoring by applying the green city index (GCI), which is set up to evaluate the city level, to the city of Gangneung-si, which was designated as a pilot city for the Low-carbon Green Growth City project by the Ministry of Land, Infrastructure, and Transportation. The GCI was applied in the framework of European systems, while considering the social and economic status of Korea. Indicators from 7 areas-$CO_2$, energy, building, transportation, water, waste, and quality of atmosphere were analyzed, except for qualitative indicators. Results indicate that total $CO_2$ emissions were 30.8 tons per capita, or 2.2 tons per one million units of real GDP. The total final energy consumption was 0.231 TOE/capita, or 0.317 TOE per one million units of real GDP. The percentage of total energy derived from renewable resources was 0.41% and energy consumption by the building was $433.5Mwh/1,000m^2$. The total percentage of the working population travelling to work daily by public transportation (limited to bus) was 19%. Further, the total annual water consumption was $99m^3/capita$, and the water lost in the water distribution system was $0.057m^3/capita/day$. The total annual waste collected was 0.0077 ton per capita, The annual mean emission were 0.014 ppm/day for $NO_2$, 0.005 ppm/day for $SO_2$, and 0.019 ppm/day for $O_3$. The annual mean for PM10 emissions was $39{\mu}g/m^3/day$.

• 한국조경학회지
• /
• 제29권1호
• /
• pp.113-123
• /
• 2001

The purpose of this study is to help out the settlement of the Green Map in Korea, and to suggest how to map, and help community people and environmental planner systematically take care of their own towns. This study is also to introduce the green mapping and its usefulness, based on the Green Map Movement, which originated from Net York City and has been expanding through the World. Environmental elements shown on the Green map vary between countries and for the Seocho-Gu Green Map, we have decided to indicate the places that we are proud of, and dishonored of. Especially, this paper is focused on finding the hidden environmental resources in our daily lives. Seocho-Gu, one of 25 self-governmental resources. Since the citizens and government officials are open-minded in their environments, it is a suitable area to start the first Green Map in Korea. As a method of locating the environmental resources, the "Foot Sensing Method" by which residents directly research, is the main difference from typical maps by the "Remote Sensing" which focused on the variety participation of the residents such as questionnaires, investigation with youth volunteers, users interviews which may be more meaningful than the Green Map itself. The purpose of application plan is to preserve the environmental resources through the smooth feedback with the residents. Thus, it must be acted as a opening window linking them with the local circumstances. In line with this, this study proposed the trial-version Web Green Map and Green tour plan. Recently, a need for an environmental map has been reflected in the environmental policies of Seoul Metropolitan City, and it is in place now. If environmental experts of different disciplines use the Green Map for landscape architecture, design, and city planning, it will help them make a better understanding of the needs of the community and to practice the user-centered design. Eventually, the Seocho-Gu Green Map will help its residents, tourists, government, and environmental planners continue establishing the healthy city environments. It is expected that the green map will be employed as a useful method for establishing healthy city and town through right way of use and contents.of use and contents.

• 대한화학회지
• /
• 제55권2호
• /
• pp.313-316
• /
• 2011

• 에너지공학
• /
• 제27권3호
• /
• pp.36-40
• /
• 2018

Climate change is one of the major issues in both the developed and developing world. Greenhouse gas (GHG) emission is one of the implications for climate change. It is increasing rapidly. Although the emission is much less when compared to the rest of the world, Ethiopia has also faced this global issue. The major source for GHG emission in Ethiopia is agriculture. Therefore, the agriculture sector has to be given more attention in Ethiopia. To overcome the problem, Climate-Resilient Green Economy (CRGE) strategy has been initiated. One way of executing this target is to create a sustainable and environmentally friendly pathway to use agricultural byproducts. Sugarcane is one of the major plants in Ethiopia. Its byproducts are bagasse, molasses, and press mud. Since it is a waste product, it is economical and creates a sustainable and green environment by reducing GHG emissions. Sugarcane byproducts have versatile applications like as fuel, as cement replacing material, as a mitigation for expansive soils, as biosorbent for the treatment of water and wastewater and also as a wood material. However, Ethiopia has not used this byproduct massively as it is readily available. This paper reviews the possible applications of sugarcane byproducts to mitigate climate change.