• Title/Summary/Keyword: Rps

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기획특집 신재생에너지/(3)풍력에너지 - RPS 도입시 풍력발전 산업 수혜

  • Lee, Jong-Su
    • 월간 기계설비
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    • s.223
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    • pp.63-69
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    • 2009

  • 국내외적으로 풍력발전 시장이 크게 확대될 것으로 전망되고 있다. 특히 올해 도입예정인 신재생에너지 공급의무화(RPS)와 관련해 풍력산업이 가장 큰 수혜를 볼 것으로 예상되고 있다. 정부는 '신재생에너지 개발 이용 보급 촉진법 일부 개정 법률안'에 따라 2012년 총 전력공급량의 3%, 2020년 10%를 RPS비율로 예정해 놓은 상태이다. 풍력, 태양광 등 신재생에너지의 발전 단지 건설이 최소 2년 이상 소요되는 것을 감안하면 늦어도 2010년부터는 한전을 비롯한 발전사업자들의 신재생에너지 발전 단지 발주가 급증할 것으로 예상된다. 설비건설업계도 풍력발전 시장에서 제2의 도약을 기대해 볼 수 있을 것이다. 풍력발전 시공기술을 확보하는 한편 최근 풍력발전 시장에 뛰어드는 대기업과 풍력발전 설계 시공경험이 있는 대형 건설사 및 엔지니어링회사와 제휴해 해외에 진출하는 방안도 모색할 필요가 있을 것이다. 이번 호에는 풍력발전 기술과 풍력발전단지 건설사례를 소개한다.

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Genetic Variation and Phylogenetic Relationship of Taraxacum Based on Chloroplast DNA (trnL-trnF and rps16-trnK) Sequences (엽록체 DNA (trnL-trnF, rps16-trnK) 염기서열에 의한 국내 민들레속 유전자원의 유전적 변이와 유연관계 분석)

  • Ryu, Jaihyunk;Lyu, Jae-il;Bae, Chang-Hyu
    • Korean Journal of Plant Resources
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    • v.30 no.5
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    • pp.522-534
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    • 2017

  • This study was investigated genetic variation in 24 Taraxacum accessions from various regions in South Korea based on the sequences of two chloroplast DNA (cpDNA) regions (trnL-trnF and rps16-trnK). T. mongolicum, T. officinale, and T. laevigatum were triploid, and T. coreanum and T. coreanum var. flavescens were tetraploid. The trnL-trnF region in native Korean dandelions (T. mongolicum, T. coreanum, and T. coreanum var. flavescens) were ranged from 931 to 935 bp in length, and that of naturalized dandelions were ranged from 910 bp (T. officinale) to 975 bp (T. laevigatum) in length. The rps16-trnK region in T. mongolicum, T. coreanum, T. coreanum var. flavescens, T. officinale, and T. laevigatum was 882-883 bp, 875-881 bp, 878-883 bp, 874-876 bp, and 847-876 bp, respectively, in length. The sequence similarity matrix of the trnL-trnF region ranged from 0.860 to 1.00 with an average of 0.949, and that of the rps16-trnK region ranged from 0.919 to 1.000 with an average of 0.967. According to the phylogenetic analysis, the Korean native taxa and naturalized taxa were divided independent clade in two cpDNA region. T. coreanum var. flavescens clustered only with T. coreanum, and there were no significant differences in their nucleotide sequences. The finding that two accessions (T. coreanum; Jogesan, T. mongolicum; Gangyang) had a high level of genetic variation suggests their utility for breeding materials.

  • https://doi.org/10.7732/kjpr.2017.30.5.522 인용 PDF KSCI

Influence of Root Restriction Materials and Media on Soil Environment and Growth of Runner Plantlets during Propagation of 'Seolhyang' Strawberry (차근육묘를 위한 자재 및 배지 종류가 토양환경과 '설향' 딸기 자묘의 생장에 미치는 영향)

  • Park, Gab Soon;Chae, Soo Cheon;Oh, Chan Sik;Choi, Jong Myung
    • Horticultural Science & Technology
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    • v.33 no.4
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    • pp.511-517
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    • 2015

  • This research was conducted to evaluate the influence of root restriction materials and media on the growth of runner plantlets of 'Seolhyang' strawberry in a nursery field. To achieve this, the influence of three kinds of root media on the growth of runner plantlets was monitored when polyethylene film was used as the root restriction material. In addition, the influence of various root restriction materials (RRS) such as transparent polyethylene film (PE), non-woven fabric (NF), perforated polyethylene film (PP), and root proofing sheet (RPS) on the changes in volumetric water content (VWC) and temperature of root media as well as growth of runner plantlet were investigated when expanded rice hull (ERH) was used as the root medium. In the comparison of root media, growth parameters such as leaf area and crown thickness at 20 d after fixation as well as crown thickness and fresh weights of root and above-ground tissue at 40 d after runner plantlet fixation were higher in the ERH treatment than in sandy loam and loamy sand. When the influence of RRS was compared, the VWC of ERH was 55% just after irrigation, but decreased to 26% at just before irrigation. Ranges of the VWC as influenced by irrigation cycle were 16 to 10% in the PP and less than 10% in the NF and RPS. The soil temperature in the PE treatment was around $1^{\circ}C$ lower than in NF, PP, and RPS. The differences between day and night temperatures were also smaller in the PE treatment rather than those in NF, PP, and RPS. The growths of runner plantlet 50 d after fixation showed that plant heights as well as fresh weights of root and above-ground tissue were higher in the PE treatment than in NF, PP, and RPS. NF and PP did not effectively restrict roots inside the medium and the roots of runner plantlets penetrated through the root restriction materials resulting in the formation of root system below the restriction materials. The above results indicate that ERH is more effective than sandy loam or loamy sand as root medium. PE rather than NF, PP, or RPS as root restriction material resulted in better growth of runner plantlets in propagation of 'Seolhyang' strawberry. The results of this research will be used for production of high quality runner plantlets in strawberry propagation.

  • https://doi.org/10.7235/hort.2015.15003 인용 PDF KSCI

The Survey on Renewable Portfolio Standards in the United States (해외 신재생에너지 의무할당제 시행사례 분석 - 미국을 중심으로)

  • Son, Sung-Ho;Cho, Ki-Seon
    • Proceedings of the KIEE Conference
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    • 2008.11a
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    • pp.441-443
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    • 2008

  • 본 논문은 신재생에너지 보급 화대를 위한 정책수단으로 활용되고 있는 신재생에너지 의무할당제(RPS; Renewable Portfolio Standards)의 시행현황과 제도 동향을 미국 사례 중심으로 분석하였다. 신재생에너지 의무할당제의 전반적인 시행 사례 분석을 통하여 국내에 RPS 도입 시 고려할 다양한 제반사항을 식별하고 활용할 수 있는 기회를 제공하였다.

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