• Title/Summary/Keyword: 에너지 산일

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The assessment of fat absorption rate and Ca bioavailability in rats fed high sn-2 palmitate formula diet (sn-2 팔미틴산 강화유지를 섭취한 흰쥐의 지방흡수율 및 칼슘 체내이용성 측정)

  • 강은영;이연숙
    • Proceedings of the KSCN Conference
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    • 2003.05a
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    • pp.136-136
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    • 2003
  • 중성지방(TG)은 모유와 조제분유의 주요에너지원이며 전체에너지의 50%까지 제공한다. 그러나, 일반 조제분유와 모유의 TG구조는 상당히 다르며, 이러한 구조적 차이로 인해 지방 및 칼슘흡수에 차이가 생긴다. 즉, 모유지방산의 1/4정도를 구성하는 팔미틴산은 이것의 70%정도가 glycerol 의 두 번째 탄소에 결합되어 있는 sn-2(middle)position으로 되어 있으며, 이러한 위치의 팔미틴산은 일반적으로 췌장지방분해 효소에 의해 분해되지 않고 2-monoglyceride로 존재한다. (중략)

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자료 - 재생에너지 3020 이행계획(안)

  • 한국원자력산업회의
    • Nuclear industry
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    • v.37 no.12
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    • pp.89-100
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    • 2017
  • 산업통상자원부는 12월 20일 서울 상암동 에너지드림센터에서 백운규 장관 주재로 관계부처, 지자체, 시민단체, 업계, 학계 등 20여명이 참석한 가운데 '제2회 재생에너지 정책협의회'를 개최하고 '30년까지 재생에너지 발전량 비중 20% 달성을 위한 '재생에너지 3020 이행계획(안)'을 발표했다. 이번 계획(안)은 지난 6월 산 관 학 연 전문가들로 구성된 이행계획 수립 T/F를 구성하여 약 6개월간 각계 전문가들의 의견을 수렴하고, 관계부처 협의, 간담회 등을 통한 각계각층의 의견을 반영하여 수립하였다. 재생에너지 정책협의회는 재생에너지 정책 수립에 있어 지자체, 시민단체, 업계, 학계를 아우르는 분권형 거버넌스 구축을 위해 '17년 8월에 발족하였다.

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Discrimination of Geographical Origin for Scutellaria baicalensis Using Energy Dispersive X-ray Fluorescence Spectrometer (에너지 분산형 X-선 형광분석기를 이용한 황금의 원산지 판별)

  • Moon, Ji-Young;Lee, Ye-Ji;Kang, Jung-Mi;Cho, Soon-Jun;Noh, Bong-Soo
    • Korean Journal of Food Science and Technology
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    • v.44 no.4
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    • pp.484-487
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    • 2012
  • A discrimination technique for domestic and imported Scutellaria baicalensis was developed using an energy dispersive X-ray fluorescence spectrometer (ED-XRF). Mineral content ratios, of a total of 43 species, including P, S, Cl, K, Ca, Mn, Fe, Cu, and Zn, were measured among 204 samples. Macro element content ratios and trace element content ratios were determined using the standardless fundamental parameters (SLFP) analysis. Inorganic element ratios of P, S, K, Ca, Cl, Mn, and Fe were significantly different between domestic and imported samples. The result from the canonical discriminant analysis showed that the accuracy of geographical origin discrimination was 95.15%; the correlation coefficient was 0.888. It was concluded that this technique could be used as a useful method in discriminating the geographical origins between domestic and imported Scutellaria baicalensis.

Biomass and Energy Content of Quercus mongolica Stands in Gwangyang and Jeju Areas (광양 및 제주 지역 신갈나무림의 바이오매스와 에너지량)

  • Kwon, Ki-Cheol;Lee, Don Koo
    • Journal of the Korean Wood Science and Technology
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    • v.34 no.4
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    • pp.54-65
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    • 2006
  • This study was conducted to examine the biomass and energy content of 60- to 70-year-old Quercus mongolica stand facing northern and southern aspect in Mt. Baekwoon (800 m above sea level), Gwangyang, Jeollanam-do and in Mt. Halla (1,000 m above sea level), Jeju-do. The total biomass was 288.4 ton/ha in northern aspect and 241.9 ton/ha in southern aspect of Mt. Baekwoon while 368.4 ton/ha in northern aspect and 364.3 ton/ha in southern aspect of Mt. Halla. Annual net production was 20.7 ton/ha/yr in northern aspect and 17.7 ton/ha/yr in southern aspect of Mt. Baekwoon while 19.0 ton/ha/yr in northern aspect and 21.2 ton/ha/yr in southern aspect of Mt. Halla. Total biomass and annual net production of Mt. Halla were greater than those of Mt. Baekwoon. The net assimilation rate (NAR) was 5.05 in northern aspect and 4.09 in southern aspect of Mt. Baekwoon, while 4.60 in northern aspect and 3.66 in southern aspect of Mt. Halla, Total energy content was 5,666 GJ/ha in northern aspect and 4,793 GJ/ha in southern aspect of Mt. Baekwoon while 6,550 GJ/ha in northern aspect and 6,435 GJ/ha in southern aspect of Mt. Halla. Annual energy content was 365 GJ/ha/yr in northern aspect and 360 GJ/ha/yr in southern aspect of Mt. Baekwoon while 351 GJ/ha/yr in northern aspect and 347 GJ/ha/yr in southern aspect of Mt. Halla. Annual energy content of Mt. Baekwoon was greater than that of Mt. Halla.

First-Principles Investigation of the Surface Properties of LiNiO2 as Cathode Material for Lithium-ion Batteries (제일원리계산을 이용한 리튬이차전지 양극활물질 LiNiO2의 표면 특성에 관한 연구)

  • Choi, Heesung;Lee, Maeng-Eun
    • Journal of the Korean Electrochemical Society
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    • v.16 no.3
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    • pp.169-176
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    • 2013
  • Solid state lithium oxide compounds of layered structure, which has high stability of structure, are mainly used as the cathode materials in lithium-ion batteries (LIBs). Recently, the investigation of Solid Electrolyte Interphase (SEI) between active materials and electrolyte has been focusing to improve the performance of lithium-ion batteries. For the investigation of the SEI, the study of surface properties of cathode materials and anode materials is also required in advance. $LiNiO_2$ and $LiCoO_2$ are very similar layered structure of cathode active materials and representative solid state lithium oxide compounds in LIBs. Various experimental and theoretical studies have been doing for $LiCoO_2$. The theoretical investigation of $LiNiO_2$ is not sufficient, however, even if experimental studies of $LiNiO_2$ are enough. In this study, the surface energies of nine facets of $LiNiO_2$ crystal facets were calculated by Density Functional Theory. In XRD data of $LiNiO_2$, (003), (104), (101), et al. facets are main surfaces in order. However, the results of calculation are different with XRD data. Thus, both (104) and (101) facets, which are energetically stable and measured in XRD, are mainly exposed in the surface of $LiNiO_2$ and it is expected that intercalation and de-intercalation of Li-ion will be affected by them.