• Title/Summary/Keyword: green development

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Development of Night Vision Imaging System Green A Compatible LED for Avionic Applications (항공전자 응용을 위한 NVIS (Night Vision Imaging System) Green A 호환 LED 개발)

  • Kim, Tae Hoon;Yu, Chang Han;Yoon, Hyeon Ju;Kim, Min Pyung;Yoon, Ho Shin
    • Journal of the Semiconductor & Display Technology
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    • v.19 no.4
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    • pp.1-5
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    • 2020
  • By adapting black body leadflame and thin film type Green A filter, we successfully demonstrated night vision imaging system (NVIS) Green A compatible LED. Fabricated NVIS compatible LEDs show small form factor compared to that of commercialized NVIS compatible LED. Especially, NVIS radiance and chromaticity of MIL-STD-3009 specification can be satisfied simultaneously and easily by controlling the color temperature of the white LED as well as the concentration of the Green A dye and the thickness of the Green A filter. The optimal dye concentration of the NVIS Green A filter is expected to be about 1 wt%. The results of this study are expected to contribute to miniaturization, weight reduction and localization of avionic display and lighting devices.

Development Issues of the Special Economic. Zone for Regional Development related to Environmentally Friendly Agriculture and Green Tourism (친환경농업 및 농촌관광 관련 지역특화발전특구의 발전전략)

  • Kim, Ho;Heo, Seung-Wook
    • Korean Journal of Organic Agriculture
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    • v.14 no.4
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    • pp.361-383
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    • 2006
  • The works of the special economic zone for regional development(SEZone) have been promoted for developing the regional economy corresponding with its own peculiarities by not national, but local level of government. Namely, those set the goal at specialized development of regions through an appeasement policy against regulations. So local governments. must originate the local works, get financial sources by itself, and then revitalize the regional economy. The policies of many local governments aim at increasing farmers' income by developing rural society to cope with open economy system. By the way they have tried to revitalize agriculture and rural society by promoting actively the works of SEZone through an appeasement policy against regulations. And it is important to search for specialized factors based on regional resources, and to make connected with them together so as to obtain good results in the works of SEZone. This study examined regulations related to environmentally friendly agriculture and green tourism. And it researched about the effect of SEZone works on regional economy and develops indices of result estimation. So schemes for strategies for increasing demand and development issues were presented.

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Impact of Community Investment Renewable Development Project on the Local Economy: Aspects of Residential Income and Local Company Revenue (주민참여형 재생에너지 개발의 지역경제 기여효과: 주민소득과 지역기업 매출을 중심으로)

  • Kim, Yunsoung;Yun, Seonggwon;Im, Hyunji;Yun, Taewhan
    • New & Renewable Energy
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    • v.17 no.1
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    • pp.61-75
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    • 2021
  • Power generation using solar PV and wind power are more feasible to compete with fossil fuel power generation. However, residential acceptance is still a big challenge in the deployment of renewable energy. The Korean government has implemented various policies to support the development of renewable energy in which communities invest. However, there are very few cases of the commercial operation of community-invested renewable energy power plants. Renewable energy has attracted attention in the reduction of greenhouse gasses (GHG) effects and economic feasibility. However, it is also necessary to focus on socio-economic effects to overcome the economic recession while reducing greenhouse emissions. Community-invested renewable energy development projects can positively revitalize the local economy in many aspects, such as resident income, job creation, and the growth of local businesses. This study analyzes the local economic impact of renewable energy development projects on residents' income and job creation. It increased local companies' sales through community-invested development projects in Korea.

On Water CuSO4. 5H2O-catalyzed Synthesis of 2-amino-4H-chromenes

  • Behbahani, Farahnaz Kargar;Maryam, Sadeghi
    • Journal of the Korean Chemical Society
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    • v.57 no.3
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    • pp.357-360
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    • 2013
  • Sustainable development is a balance between environment and development. Sustainable development requires sustainable supplies of clean, affordable, and renewable energy sources that do not cause negative impact to the society. This article introduces a green chemistry method to synthesize 2-amino-4H-chromenes that reduces or eliminates the use and generation of hazardous substances in the design, manufacture, and application of chemical products. This method is described using copper (II) sulfate pentahydrate, as a green and reusable catalyst on water. The products were obtained at very good yields, short reaction time, and at lower cost than other reported procedures.

A Study on the Reality and Improvement Plan of Scenic Landscape Agriculture in Korea - Case Study of the Go-Chang County in Jeon-Buk Province - (한국의 경관농업의 실태와 개선방안에 관한 연구 -전라북도 고창군 공음면 사례를 중심으로-)

  • Chung, Cheol-Mo;Park, Mi-Ho
    • Journal of Korean Society of Rural Planning
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    • v.13 no.3
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    • pp.13-21
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    • 2007
  • This study focus on the pilot case of a scenic landscape agriculture in Go-Chang county for the innovative rural development strategy related the green tourism in Korea. The Go-Chang county in Jeon-Buk province has been progressed the diversified agricultural crops production region. The Go-Chang county is known as the famous cultural tour place that has the many historical and cultural resources (provincial natural park, traditional music, great stone cluster area, military castle walls, good tasted eel food and wine). But, today, the circumstances of global agricultural free trading situations is rapidly proliferated, it invited the depression of the agricultural incomes in rural regions in Korea. So, the Go-Chang county seeks trying to alternative development methods. The new frontier like scenic landscape agriculture is the one of the innovative strategies in this processes. The Go-Chang county selects and supports the scenic landscape agriculture for the new income production policy in connection with the green tourism. This study finds out the important components of the success of a scenic landscape agriculture for the introduction to the new frontier of peen tourism in Go-Chang county. First the scenic landscape agriculture development must be related the 4 season-ecological cultivation methods connected well-being trends. Second, it will be increased the income level of rural people by the competitive the rural green products and diversified green tourism programs which produced by the efforts of the rural people. Third, the success of scenic landscape agriculture and place marketing of rural green tourism depend on the creative community leaders.

Five Indices of SSaM-GG(=Smart, Shared, and Mutual- Green Growth) for Sustainable Development (지속가능/영속(永續)발전을 위한 지속성/안녕(安寧)성의 5대 지표(=SSaM-GG) 개발)

  • Koo, Ja-Kong;Park, Sang Ryul;Lee, Seul Ki
    • Journal of the Korea Organic Resources Recycling Association
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    • v.20 no.4
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    • pp.127-133
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    • 2012
  • The 'SSaM-GG'(=Smart, Shared, and Mutual- Green Growth) as the five bottom lines for sustainable development is developed and suggested. Because the name of Green Growth alone is not sufficient for clear conceptualization, implementation. and etc. For the global harmonized usage & application, the Eastern-Western conceptual fusion has been performed, and verified for more than 12 years on the worldwide successes and failures.

The Urban Water Cycle Planning Elements and Hydrologic Cycle Simulation for Green City (녹색도시 물순환 계획요소 및 수문순환 모의)

  • Lee, Jung-Min;Kim, Jong-Lim
    • Land and Housing Review
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    • v.3 no.3
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    • pp.271-278
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    • 2012
  • The climate change and global warming has been a world-wide issue. Also, the green growth has been a widely adopted strategy for national and regional development. In particular, after the Kyoto Protocol to United Nations Framework Convention on Climate Change was declared, the low carbon society was inevitable phenomenon. The hydrologic cycle in urban catchment has been changed due to the expansion of impervious area by rapid urban development. This paper has examined the Water cycle planning elements for green city in the scale of urban planning as well as site planning including housing site. In this study, the SWMM5-LID (Storm Water Management Model5-LID) model was used to simulate the hydrologic cycle of the test catchment as a typical urban catchment. We performed continuous simulation on urban runoff before and after the development of the test catchment and after the installation of Green city planning Elements.

Development of Green Building Certification Framework for Urban Neighborhood Scale Development (근린단위 녹색건축인증 평가체계 개발)

  • Jung, Seunghyun
    • The Journal of the Korea Contents Association
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    • v.19 no.12
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    • pp.203-214
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    • 2019
  • Green building certification is being implemented in various countries around the world for the purpose of securing sustainability and reducing energy use and carbon emissions. Korea has been implementing G-SEED, a green building certification, for buildings since 2002, but in foreign countries, the evaluation target has been expanded from buildings to neighborhood units, cities, and infrastructure. Therefore, the purpose of this study was to establish Korean green building certification system in terms of neighborhood scale. In order to make Korean certification scheme for neighborhood communities, three major international certification systems (BREEAM Communities, LEED-ND, and CASBEE-UD) were compared. Comparison was executed about definitions and goals, certification system and range, certification categories, and regulation relationship by literature review. Based on the results, the evaluation system proposal including the scope, subjects, and items for green building certification in Korea was proposed.

The effects of light colour on female rabbit reproductive performance and the expression of key genes in follicular development

  • Xiaoqing, Pan;Xinglong, Wang;Le, Shao;Jie, Yang;Feng, Qin;Jian, Li;Xia, Zhang;Pin, Zhai
    • Journal of Animal Science and Technology
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    • v.64 no.3
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    • pp.432-442
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    • 2022
  • The purpose of this study was to analyse the effects of light colour on rabbit reproductive performance and the expression of key follicular development genes. Rabbits (n = 1,068, 5 months old, 3.6-4.4 kg live body weight) were divided randomly into four groups, housed individually in wire mesh cages and exposed to red, green, blue, and white light-emitting diode (LED) light (control). The lighting schedule was 16 L : 8 D-15 d / 150 lx / 6:00 am-22:00 pm (3 d preartificial insemination to 12 d postartificial insemination). Red light and white light affected the conception rate and kindling rate and increased the total litter size at birth (p < 0.05). The effects of red light on litter size at weaning, litter weight at weaning, and individual weight at weaning increased compared with the green and blue groups. The effects of red light on live litter size at birth were increased compared with those in the blue group (p < 0.05). Compared to white light, green and blue light reduced the number of secondary follicles (p < 0.05). Compared to red light, green and blue light reduced the number of tertiary follicles (p < 0.05). Compared with white light, red LED light resulted in greater ovarian follicle stimulating hormone receptor and luteinizing hormone receptor mRNA expression (p < 0.05). Compared with green and blue LED light, red LED light resulted in greater B-cell lymphom-2 mRNA expression (p < 0.05). Compared with green LED light, red LED light inhibited FOXO1 mRNA expression in rabbit ovaries (p < 0.05). Red light can affect the reproductive performance of female rabbits and the expression of key genes for follicular development.