• Title/Summary/Keyword: 가시(歌詩)

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낙농자조금사업은 투명하고 효율적으로 집행되어 가시적 효과를 거두었다

  • 정선부
    • 월간낙농육우
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    • v.19 no.12 s.212
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    • pp.95-97
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    • 1999
  • 낙농자조금사업의 궁극적인 목표는 우유는 완전식품으로 국민건강, 유아건강, 노후건강을 위해서 꼭 필요한 음식이라는 인식을 많은 국민들에게 심어주는 계기가 되었다. 낙농자조금사업 원년에 가시적인 효과를 거둔 것에 만족하지 말고 앞으로 더 많은 자조금이 모금되고 이를 이용한 우유의 소비촉진 홍보가 더 많이 전개될 것을 바라는 바이다.

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A Study on Design of Cataloging Expert System (패턴인식기법들 이용한 편목전문가시스템 설계)

  • 김현희
    • Proceedings of the Korean Society for Information Management Conference
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    • 1994.12a
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    • pp.143-146
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    • 1994
  • 본 연구에서는 표제면과 판권지의 서지요소의 레이아웃 특성과 구문적 특성을 이용하여 서지요소의 종류를 패턴인식 지식베이스와 전거화일들을 이용하여 자동 인지하고 인지된 서지요소를 한국문헌자동화목록형식(KORMARC)과 한국문헌자동화목록법(KORMARC) 기술규칙에 기초하여 KORMARC 형태로 출력해 주는 편목전문가시스템을 구축하였다.

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병충해 방제 - 칠엽수 잎마름병 (Leaf blotch)

  • Kim, Gyeong-Hui
    • Landscaping Tree
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    • s.142
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    • pp.47-48
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    • 2014
  • 칠엽수는 마로니에라는 이름으로 많이 알려져 있는 나무이며, 마로니에는 칠엽수 집안의 나무들을 통틀어서 부르는 이름이다. 일본 원산인 칠엽수, 소아시아 원산이며 열매 겉에 가시가 있는 가시칠엽수는 우리나라의 가로수나 공원수로 많이 심겨져 있다. 이런 칠엽수류에 여름이면 잎에 갈색의 큰 반점이 생기며 지저분해지는 잎마름병이 큰 문제가 되고 있어 이 병을 소개한다. 칠엽수 얼룩무늬병으로도 알려져 있는데 한국식물병리학회의 공식적인 병명은 칠엽수 잎마름병이다.

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ITS Sequence Variations in Populations of Ilex cornuta (Aquifoliaceae) (호랑가시나무(Ilex cornuta) 개체군의 ITS 염기서열 변이 분석)

  • Son, Sung-won;Kim, Joo-Hwan;Kim, Yong-Shik;Park, Seon-Joo
    • Korean Journal of Plant Taxonomy
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    • v.37 no.2
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    • pp.131-141
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    • 2007
  • Genetic variation of Ilex cornuta Lindley et Paxton was examined by sequence analyses of ITS for 65 individuals from Korea and China. The length of ITS 1 ranged from 253 to 259 bp. The 5.8S was 159 bp and ITS2 was observed to be 231 bp. A total of 8 different ITS types (Single Nucleotide Polymorphism haplotypes), which showed the difference of 1 - 6 bp, were detected from 65 individuals. The sequence polymorphisms of ITS appeared at 9 different sites. All of four individuals collected at Daejeong-eup in Jeju-do exhibited different types, but all individuals from Naju-si and Muan-gun in Jeollanam-do were identical. The variation of ITS was higher in Jeju-do population than in inland population. Since I. cornuta contains various types of ITS sequences, ITS analyses will provide important information on genetic diversity and conservation of this species.

Visible Light Induced Photocatalytic Activity of N-doped TiO2 (질소 도핑된 이산화티타늄의 가시광 광촉매 활성 연구)

  • Lee, Seo Hee;Lee, Chang-Yong
    • Applied Chemistry for Engineering
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    • v.29 no.3
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    • pp.298-302
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    • 2018
  • Photocatalytic properties of nitrogen doped titanium dioxide were investigated. Photocatalytic degradation of methylene blue under UV and visible light was carried out to characterize N-doped $TiO_2$. The result of XPS indicated that nitrogen atoms substitute for oxygen sites within the crystal structure of $TiO_2$. In the UV-Vis DRS spectra, N-doped amorphous $TiO_2$ absorbed UV light with little absorption of visible light, while the absorption of visible light of amorphous/anatase $TiO_2$ remarkably increased. Methylene blue photocatalytic degradation appeared by the irradiation of UV or visible light onto the N-doped anatase phase of $TiO_2$. However, the degradation rate of visible light was lower than that of UV light. The photocatalytic degradation rate of the amorphous/anatase $TiO_2$ sample was higher than that of the anatase $TiO_2$. These results indicate that the high surface area of amorphous/anatase $TiO_2$ sample, which was about three times larger than those of the anatase $TiO_2$ sample, may be related to small particles of N-doped anatase $TiO_2$.

Changes in Essential Oil Contents of Acanthopanax senticosus Harms Grafted on Acanthopanax senticosus var. subinermis Harms (가시오갈피와 좀가시오갈피 접목시 정유성분 변화)

  • Shin, Kuk-Hyun;Cho, Sun-Haeng;Lim, Soon-Sung;Lee, Sang-Hyun;Ryu, Na-Ma;Joo, Wha-Kyun
    • Korean Journal of Medicinal Crop Science
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    • v.6 no.2
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    • pp.114-120
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    • 1998
  • The present study was carried out to investigate the changes in essential oil contents as a part of searching the changes in active components in the graft cultivation of A. senticosus. To increase the yield of aerial parts and the contents of active components of Acanthopanax senticosus, scions of A. senticosus were grafted on different rootstocks. As a result, the contents of calarene, ${\alpha}-beramotene$ and spathulenol increased, but cis-caryophyllene and epizonarene contents decreased. ${\beta}-pinene$, ${\beta}-myrcene$, 2,5,5 -trimethyl-1, 3, 6-heptatriene and ${\beta}-elemene$ were not detected in the leaves of grafted A. senticosus. Essential oils from stems did not differ with the methods of cultivation. Oil contents of 3-year-old plants were higher than those of 1-year-old plants, whereas ${\alpha}-bergamotene$ content(27%) was highest in the stem of grafted A. senticosus(27%). Ethylbenzene, 2-furancarboxaldehyde, M134 $(t_R=2.11)$ and M205 $(t_R=3.16)$ disappeared in the roots of A. senticosus var. subinermis, but 6,6-dimethyl-3-methylenebicycloheptane, M166 $(t_R=1.82)$, and (+) -aromadendrene and ${\beta}-bisabolene$ were newly found.

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Studies on the Development of the Fishing System of Set Net in the Coast of Jeju Island - I. Comparative of Fishing Efficiency of Rectangular Set Net and Pound Net by the Model Net - (제주도 연안 정치망 조업시스템 개발에 관한 연구 - I. 모형어구에 의한 각망과 낙망의 어획성능 비교 -)

  • 김종범;김석종
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.37 no.3
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    • pp.223-231
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    • 2001
  • For the purpose of providing the basic data on the improved fishing gear and the man power saving, which contribute to enhance fishing efficiency of set net in the coast of Jeju Island, this study executed the test of fish tank by reducing these actual nets by 1/30 and using the manufactured model nets, and observed and interpreted the behaviors of entering and escaping of the schools of mackerel Scomber japonicus, horse mackerel Trachurus japonicus and rabbit fish Siganus fuscescens. Thereby the result is as follows ; 1. After the elapsed time of 60 seconds, in case of rectangular set net, the ratio for entering by a school of fish marked 50% with mackerel, 18% with horse mackerel and 28% with rabbit fish, and in case of pound net, the ratio for entering net by a school of fish marked 70% with mackerel, 60% with horse mackerel and 30% with rabbit fish. 2. After the elapsed time of 60 seconds, in case of rectangular set net, the ratio for escaping by a school of fish marked 70% with mackerel, 40% with horse mackerel and 24% with rabbit fish, and in case of pound net, the ratio for escaping from net by a school of fish marked 0% with mackerel, 0% with horse mackerel and 3% with rabbit fish. 3. After the elapsed time of 60 seconds, in case of rectangular set net, the ratio for remaining by a school of fish marked 30% with mackerel, 60% with horse mackerel and 76% with rabbit fish, and in case of pound net, the ratio for remaining by a school of fish marked 100% with mackerel, 100% with horse mackerel and 97% with rabbit fish.

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Preference of the Mountain Trail by the Visibility of the Landscape Resources - Case Study of the Seoraksan National Park, Korea - (경관자원 가시도가 탐방로 선호에 미치는 영향 - 설악산국립공원을 대상으로 -)

  • Hong, Suk-Hwan;Kim, Choong-Sik;Ryu, Jeong-Sang;Kim, Ji-Suk
    • Korean Journal of Environment and Ecology
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    • v.28 no.2
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    • pp.253-262
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    • 2014
  • This study was conducted to find methods of qualitative landscape assessment for vegetational landscapes using ecological analysis. The study site was Seoraksan National Park in Korea. For this study, differing unique landscape resources were categorized and identified according to ecosystems. After identifying the study areas, the relationship between trail visitor preference and the amount of visible overexposure caused by people to the resources was examined. Landscape resources chosen for ecological analysis at Seoraksan National Park were subalpine vegetation community, high mountain rocks, ombrogenous deciduous broadleaf forest in the valley area, edaphic climax community, big tree community, flowering tree dominant community, autumnal tree dominant community and needle-leaf forest in the subalpine area. As a result of the study, it was found that the landscape resources with the highest correlation to visitor trail preference were big tree community area, flowering tree dominant community area, and needle-leaf forest in the subalpine area. As a result of overlapping the analysis of the amount of visible overexposure to the landscape resources and the analysis of preferential use of trails by visitors, guidance for the appropriate season for each trail can be provided. Since a positive correlation exists between certain sections of the natural landscapes and visitor preference, ecological impact on landscape resource ecosystems did not appear to cover wide areas of the trails, but was limited to certain areas preferred by visitors.

Antioxidant and Nitrite Scavenging Activities of Acanthopanax senticosus Extract Fermented with Different Mushroom Mycelia (버섯균사체를 달리한 발효가시오가피 추출물의 항산화 활성 및 아질산염 소거능)

  • Kim, Dan-Bi;Shin, Gi Hae;Lee, Jong Seok;Lee, Ok-Hwan;Park, In-Jae;Cho, Ju-Hyun
    • Korean Journal of Food Science and Technology
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    • v.46 no.2
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    • pp.205-212
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    • 2014
  • This study was designed to investigate the antioxidant activities (ORAC value, DPPH and ABTS radical scavenging activity, FRAP activity, and reducing power) and nitrite scavenging activities of Acanthopanax senticosus extracts fermented with the mycelia of three different mushroom species: Ganoderma lucidum, Phellinus linteus, and Hericium erinaceus. The highest total phenol content (42.09 GAE mg/g) and ORAC value ($74,912{\mu}M$ TE/g) were observed in a hot water extract of A. senticosus fermented with G. lucidum. The highest DPPH radical and nitrite scavenging activities were observed in a 70% ethanol extract of A. senticosus fermented with G. lucidum. In addition, ABTS radical scavenging activity (8-88%), FRAP activity (0.1-0.2), and reducing power (0.3-0.7) were increased by ethanol addition in all samples in a dose-dependent manner. These results provide a basic understanding of the antioxidant and nitrite-scavenging activities of A. senticosus extracts fermented with different mushroom mycelia.

Simulation of Plume Length Induced by Orimulsion Combustion (오리멀젼 연소시 발생하는 백연의 연기거리 전산모사)

  • Kwak, Byoung-Kyu;Kim, Jong-Ho;Joo, Ji-Bong;Lee, Jeong-Jin;Kim, Jin-Soo;Kim, Young-Hun;Yi, Jong-Heop
    • Clean Technology
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    • v.14 no.2
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    • pp.136-143
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    • 2008
  • The objective of this study is to investigate the visibility of plume at the Y power plant stack, which fires the orimulsion as a fuel. The plume contains numerous primary particles under $1\;{\mu}m$ size and inorganic ions possibly inferred by the chemicals of secondary aerosol formation. We evaluated the visibility of the plume using the modified PLUVUE-II model. The monitoring data on the particle size distribution (PSD) and secondary aerosols of sulfate were applied to estimate and evaluate the main factors of plume opacity. The chemical reactions were applied to the model for the secondary aerosol formation of $(NH_4)_2SO_4(s)$. The maximum plume length was estimated by an optic method using threshold contrast. The results showed that the plume length was strongly dependent upon the PSD and $(NH_4)_2SO_4(s)$ concentration of the plume emitted from the stack.

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