Park, Young Jun;Son, Kiyoung;Ahn, Sungjin;Kim, Sunkuk
Journal of the Korea Institute of Building Construction
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v.12
no.6
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pp.615-623
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2012
Humanity is facing a number of serious issues associated with increased energy consumption and environmental pollution. Various studies/guidelines concerning sustainable building construction have suggested solutions to these disastrous problems, including: net-zero energy buildings, the green building certification system, and others. Sustainability pursues three expected effects: environmental, social, and economic merits. Korean Green Building Council (K-GBC) has also announced the Korean Green Building Certification System (K-GBCS) since 2003 based on sustainability. Some positive social and environmental aspects of the K-GBCS have already been reported. However, it is somewhat difficult to verify its economic merits, which are crucial to ensuring the validity of the K-GBCS. This research aims to verify the economic merits of the eco-friendly Korean-style condominiums accredited by K-GBCS. Following this, the expected economic effectiveness of K-GBCS will be examined in terms of sustainability. The underlying assumption is that the potential economic effect should reflect the actual economic merits, and should reflect the value of the housing in particular. According to the analysis of the variance, it can be concluded the value of green certified buildings is statistically higher than the value of non-certified buildings. Furthermore, it was also observed that this tendency was more dominant in Gyeonggi Province than in the City of Seoul. This may be caused by one of the variables: the proximity to downtown. In future studies, this variable should be studied in greater detail.
Green roofs can reduce surface water runoff, provide a habitat for wildlife moderate the urban heat island effect, improve building insulation and energy efficiency, improve the air quality, create aesthetic and amenity value, and preserve the roof's waterproofing. Green roofs are mainly divided into three types : intensive, simple-intensive, and extensive. Especially, extensive roof environment is a harsh one for plant growth; limited water availability, wide temperature fluctuations, high exposure to wind and solar radiation create highly stressed environment. This study, aimed at extensive green roof, was carried out on the rooftop of the library at Seoul Women's Univ. from October to November, 2012 and from March to August, 2013. To suggest the most effective vegetation model for biodiversity and heat island mitigation, surface temperatures were monitored by each vegetation model. We found that herbaceous plants of Aster sphathulifolius, Aceriphyllum rossii and Belamcanda chinensis, shrub of Syringa patula 'Miss Kim', Thymus quinquecostatus var. japonica, Sedum species can mixing each other. Among them, the vegetation models including Sedum takesimense, Aster sphathulifolius, Thymus quinquecostatus var. japonica was more effective on the surface temperature mitigation, because the species have the tolerance and high ratio of covering, and also in water. Especially, in the treatment of bark mulching, they helped to increase the temperature of vegetation models. In the case of summer, temperature mitigation of vegetation models were no significant difference among vegetation types. Compared to surface temperature of June, July and August were apparent impact of temperature mitigation, it shows that temperature mitigation are strongly influenced by substrate water content.
Two of the most important topics of the 21st century are ensuring harmony between man and his environment and the emerging long-tail economy in which niche markets are becoming increasingly more important. Since the Industrial Revolution in 17th century, human beings have increasingly exploited the world's natural capital, such as the natural environment and its ecosystems. Now the world is facing limits to sustainable economic growth because of limits to this natural capital. Thus, most countries are beginning to adopt a new development paradigm, the so-called"Green Development Paradigm" which pursues environmental conservation in parallel with economic growth. Recently, the Korean government announced an ambitious national policy of Low Carbon & Green Growth for the next six decades. This is an important step that transforms the existing national policy into a new future-oriented one. The fisheries sector in particular has great potential for making a substantial contribution to this national policy initiative. For example, the ocean itself with its sea plants and phytoplankton has an enormous capacity for fixing carbon, and its vast areas of tidal flats have a tremendous potential for cleaning up pollutants from both the sea and the land. Furthermore, the fishing industry has great potential for the development of fuel-saving biodegradable technologies, and a long-tail economy based on digital technologies can do much to promote the production and consumption of green goods and services derived from the oceans and the fisheries. In order for this potential to be realized, the fisheries authority needs to develop a new green-growth strategy that is practical and widely supported by fishing communities and the markets, taking into account the need for greenhouse gas reduction, conservation of the ocean environment and ecosystems, an improved system for seafood safety, the establishment of strengthened MCS (monitoring control surveillance) system, and the development of coastal ecotourism. In addition, fisheries green policies need to be implemented through a well-organized system of government aids, regulations and compensation, and spontaneous (voluntary) orders in fishing communities should be promoted to encourage far more responsible fisheries.
Journal of the Korean Institute of Landscape Architecture
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v.28
no.4
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pp.75-90
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2000
This study suggests the methods of the assessment and creation of biotopes in small and medium sized cities, in Korea. For this purpose, Chonju city was selected to classify and asses the biotope types. Moreover, relevant legislations to conserve and enhance urban biotopes were examined. The results of this study are as follows: 1) There were two approaches to asses the potential of urban biotopes in medium-sized cities. One was the urban scale evaluation for urban green spaces and the other was the biotope scale evaluation for the classification and evaluation of biotopes. 2) The urban scale evaluation was developed through overlaping analysis of landuse and vegetation factors. This study also included the conception of watershed. In this conception, three watersheds in Chonju city were characterized. According to these characteristics, individual programs for conservation and enhancement of urban green space were suggested. 3) For the biotope scale evaluation, Selected site was inclusively mapped and field investigation actually was carried. There were total 9 types of bitopes. Especially landuse was appeared in various evaluation items were vegetation structure, area of green space, condition of vegetation and vegetation profile. Mt, Gonji and Dukjin park, Chonbuk national University and fields were evaluated highly I the potential. 4) The biotope programs were based on the results of assessment and physical characteristics of biotopes. The uniform and simple levels on vegetation must be modified with various levels of vegetation structure and vernacular plants. And the physical characteristics like Points, Corridors and Patches can be organized by the conception of biotope networking theory. 5) The proper legislative environment was the clue elements for the biotope programs. Until now, only five types of parks and two types of green space are defined and the minimum size of green space has been proposed by the law. So, it is necessary to enlarge the conception of green space in legislation and improve the quality of green space by amending the related regulations. This study has limitation because it was selected only in Chonju. Through the continuous studies, we need to apply this other small and medium sized cities, South Korea. Also the data collection and management of theme maps such as actual vegetation, landuse and a soil must be done preliminary.
This study is intended to estimate the demand for the green health industry market, to seek for the strategies to develop human resources and to provide fundamental data for development of local green health industry specialization programs in the manner of investigating the intentions to participate in and opinions about the green health industry. Data were collected from 190 and surveyed from 5 to 19 in November 2010. Based upon the priority survey and factor analyses of educational contents for development of human resources specializing in the green health industry, there is some difference in the classification of all domains between the two groups, however the results concerning the cognition of the language education of educational contents and the priority of medical tourism marketing are similar between the two groups. As one of the biggest problems with medical tourism is the difficulty of communication during medical examination and treatment, it is desirable to develop professional human resources with global competitiveness based on customized education as well as excellent language skills by the specialized fields of green health industry.
Optimum leaching conditions of Korean green tea were determined by examining the relationship between sensory evaluation and tasting constituents of green tea infusion at various leaching conditions. Total nitrogen, total reducing sugar and tannin contents of green tea were $4.70{\sim}5.02%$, $16.5{\sim}18.0%$ and $10.3{\sim}12.7%$, respectively. They increased with the increased of leaching temperature and time. The sensory score was significantly correlated with the tannin contents of green tea in fusion in the range of $15{\sim}30\;mg/g$.(r=-0.9061). Optimum leaching conditions of green tea were $0.5{\sim}1.0$ min at $55^{\circ}C$, 0.5 min at $70{\sim}85^{\circ}C$ in high grade parched green tea, $1.0{\sim}2.0$ min at $55^{\circ}C$ and $0.5{\sim}1.0$ min at $70^{\circ}C$ in medium one.
Journal of the Korean Institute of Landscape Architecture
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v.40
no.5
/
pp.43-50
/
2012
The Green Infrastructure Framework refers to an interconnected network formed by greenways that links gardens, parks, green spaces, streams, wetlands, agricultural lands, and green belts. Green infrastructure supports diverse functions to environment, provides various benefits to people, and helps in the community's health and viability. It can store stormwater runoff and abate its non-point source pollutants. Due to its advantages and profits, advanced countries in environment policies have adopted green infrastructure in planning and implementing urban and regional development. The Korean government and municipalities have focused upon grey infrastructure investment in the past, which causes occurrence of natural disasters such as draught, flood, and landslides, degradation of water and air quality, decline of biodiversity, and even inhibition of economic activities. In order to alleviate these problems, it is requested to formulate and implement policies for green infrastructure at the national government level. USA and Korean situation of green infrastructure were investigated; forty components of green infrastructure were drawn. Nine policies utilized in the USA cases were identified, which are applicable to Korea. Among them, five policies can be implemented in public sector and four in private one. The green infrastructure law needed in Korea was suggested. The amendments of laws regarding green infrastructure and alternatives expending it were proposed.
Journal of the Korean Society of Food Science and Nutrition
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v.33
no.1
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pp.132-139
/
2004
This study was peformed in order to compare general components, color, free amino acid, fatty acid and organic acid contents between commercial doenjang (C-1, C-2, C-3) and green tea doenjang (GT). The moisture content in green tea doenjang was higher than that in commercial doenjang, but the contents of crude protein, carbohydrate and energy in commercial doenjang were higher than those in green tea doenjang. The crude lipid and fiber contents of commercial doenjang were similar to green tea doenjang. Catechin content of green tea doenjang was 2.3%. The total content of free amino acids in commercial doenjang ranged from 2,739∼6,380 mg% in which it showed wide variation among samples and the total content of free amino acids in green tea doenjang was 3000 mg%. Glutamic acid was almost high in commercial doenjang except one product but green tea doenjang was low. Linoleic acid (51%) was the highest content among the fatty acids. The major organic acid in both commercial and green tea doenjang was oxalic acid and its content in commercial times higher than in green tea doenjang. The antioxidant activity of green tea doenjang was higher than that of commercial doenjang.
This study was conducted to find out the variation in some medicinal components of Korean green tea by processing recipe and harvesting time in Bongsan-ri(steamroasted green tea) and Buchun-ri(roasted green tea) area. Total chlorophyll content of green tea grown at Bongsan-ri and Buchun-ri was 293mg% and 275mg% and ratio of chlorophyll a to chlorophyll b was 70:30 and 67:33 respectively. The later harvested one had the higher chlorophyll content but the chlorophyll content of the last harvested green tea at Buchun-ri decreased more sharply. Water-soluble pectin of green tea produced at Bongsan-ri and Buchun-ri was 2.05% and 1.84%, respectively. It also increased at the later harvested ones. Total amino acids content of Bongsan-ri and Buchun-ri tea was 2,156mg% and 1,723mg%, respectively. The later harvested tea showed the remarkably decreased. Caffein and catechins of Bongsan-ri and Buchun-ri tea were 2.03%, 11.52% and 2.62%, 14.05%, respectively, Total free catechins content of Bongsan-ri and Buchun-ri tea was 35.59% and 42.73%, and ester type was 58.09% and 44.47%, respectively. Extracted catechins and caffeins of green tea were increased when extracting water temperature was raised from $65^{\circ}C$ to 85$^{\circ}C$ and leaching time was lengthened from 3min. to 9min. About 89% catechins and 97% caffeins of green tea was extracted by nine minutes soaking in 85$^{\circ}C$ water.
Park, Jang Hyun;Nam, SeungHee;Song, Jang Hoon;Cho, Young Sik;Choi, Jin Ho;Choi, Jang Jeon;Lee, Han Chan
Horticultural Science & Technology
/
v.30
no.5
/
pp.519-526
/
2012
Anaerobic treated green teas were sealed with aluminum pack and stored for 12 months at three different temperatures such as 25, 4, or $-10^{\circ}C$. Anaerobic green teas were evaluated with respect to physiochemical properties and physiological functions. The longer anaerobic green teas were stored, their total nitrogen, tannins, or chlorophyll contents were reduced. Especially, the lower storage temperature of green tea resulted in less loss of physiochemical contents in green tea. Since green teas stored at $-10^{\circ}C$ exhibited less loss of physiochemical contents, compared to green teas stored at 25 or $4^{\circ}C$. The qualities of green teas stored at $-10^{\circ}C$ for 12 months were similar with those of teas stored at $4^{\circ}C$ for 8 months or stored at $25^{\circ}C$ for 4 months. Since 'a' value (green color) of green tea was considered as an important criteria to evaluate the tea quality. Anaerobic teas stored for 12 months were monitored their 'a' color values with -12.40 (fresh one), -10.54 ($-10^{\circ}C$), -9.77 ($4^{\circ}C$), and -9.06 ($25^{\circ}C$). Sensory evaluation results showed that anaerobic teas at $-10^{\circ}C$ were more favored than those at or 4 or $25^{\circ}C$. In conclusion, optimum storage temperature for anaerobic green teas should be $-10^{\circ}C$.
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