• Title/Summary/Keyword: 비자

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비자나무

  • Choe, Myeong-Seop
    • Landscaping Tree
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    • v.51 no.7_8
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    • pp.18-19
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    • 1999
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Effect of Temperature and Aeration on the Formation of Non-Basidiocarpous Basidiospores of Ganoderma Lucidum (Ganoderma lucidum의 비자실체성(非子實體性) 담자포자(擔子胞子)의 형성(形成)에 미치는 온도(溫度) 및 환기(換氣)의 영향(影響))

  • Shin, Gwan-Chull;Seo, Geon-Sik
    • The Korean Journal of Mycology
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    • v.17 no.4
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    • pp.194-196
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    • 1989
  • Effects of temperature and aeration on the formation of non-basidiocarpous basidiospores of Ganoderma lucidum were examined. The spores were produced most early and abundantly at $30^{\circ}C$ on PDA. No spores were formed at 15 and $35^{\circ}C$. For the formation of the spores, aeration was essential. The spores were rarely produced under the condition of saturated humidity.

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Cosmeceutical Properties of Extracts of Torreya nucifera and Alpinia henryi and Formulation Characteristics of Mask Pack Containing Extracts of These (비자 및 초두구 추출물의 코스메슈티칼 특성 및 이를 포함한 마스크팩 제형특성)

  • Soh, Soon-Young;Chun, Yong-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.8
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    • pp.36-43
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    • 2020
  • The extracts of antioxidants, torreya nucifera and alphinia henryi, were tested for properties as a fragrance material and applied to a mask pack formulation to study the fragrance properties. The DPPH antioxidant test of hot water and ethanol extract confirmed that the ethanol extract had superior antioxidant efficacy compared to the hot water extract. It was confirmed that the optimal mixing ratio as a raw material for the mask pack of torreya nucifera and alphinia henryi was 3:7 as a result of the DPPH antioxidant test. As a result of the cytotoxicity test, the cell viability was good as it showed 103.30% at 0.5 ug/mL, 104.25% at 1 ug/mL, 102.56% at 5 ug/mL, and 99.17% at 10 ug/mL compared to the untreated group. As a result of the patch test on the mask pack formulation, the skin irritation index of 0.02 was judged as a non-irritation product in the skin irritation primary stimulation human application test. In the evaluation of skin moisturizing, it showed a significant increase rate of 19.178% compared to before the sample adaptation. Evaluation of the change over time in the sheet mask pack formulation confirmed the formulation stability without viscosity and pH change for 12 weeks at low temperature(4℃), room temperature(25℃), and high temperature(45℃).

Community Structure of Natural Monument Forest (Forest of Japanese Torreyas in Pyeongdae-ri, Jeju and Subtropical Forest of Nabeup-ri, Jeju) in Jeju-do (제주도 천연기념물 수림지(제주 평대리 비자나무 숲과 제주 납읍리 난대림)의 군집구조)

  • Jeong Eun Lee;Yo Seob Hwang;Ho Jin Kim;Ju Heung Lee;Chung Weon Yun
    • Journal of Korean Society of Forest Science
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    • v.112 no.4
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    • pp.393-404
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    • 2023
  • The Natural Monument Forest (NMF) is a form of natural and cultural heritage that has symbolized the harmony between nature and culture in Korea for a long time. Recently, the NMF has deteriorated due to industrialization and reckless city expansion. Given this situation, it is necessary to preserve and manage the ecosystem of the NMF through preferential research regarding the forest community structure. Accordingly, this study sought to identify the community structure by analyzing the vegetation classification, stratum structure,and species diversity using vegetation data collected from the Forest of Japanese Torreyas in Pyeongdae-ri, Jeju and the Subtropical Forest of Nabeup-ri, Jeju. The results classified the forest vegetation as a Litsea japonica community group divided into two communities: a Torreya nuciferacommunity and a Quercus glauca community. The T. nuciferacommunity was subdivided into the Idesia polycarpa group and Dryopteris erythrosora group, while the Q. glauca community was subdivided into the Mercurialis leiocarpa group and Arachniodes aristata group. The T. nucifera species showed the highest level of importance in vegetation units 1 (Litsea japonicacommunity group-Torreya nucifera community-Idesia polycarpa group) and 2 (Litsea japonica community group-Torreya nucifera community-Dryopteris erythrosora group), whereas Q. glauca showed the highest level of importance in vegetation units 3 (Litsea japonica community group-Quercus glauca community-Mercurialis leiocarpa group) and 4 (Litsea japonica community group-Quercus glauca community-Arachniodes aristata group). In terms of the species diversity, vegetation units 1, 2, 3, and 4 had 2.866, 2.716, 2.222, and 2.326 species, respectively. These findings suggest that it is necessary to prepare a differentiated management plan for each vegetation unit.

첨단기술

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
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    • v.17 no.8 s.183
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    • pp.45-47
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    • 1984
  • 고분자 휘스커 (Polymer-Whisker) / 초밀비자 (Submicron Particles) / 레이저광선이용 피혁재단 / 프랑스 특유의 컴퓨터 언어개발

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사례연구- 데이콤 비즈니스몰(BtoB)

  • Korea Database Promotion Center
    • Digital Contents
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    • no.10 s.77
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    • pp.52-53
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    • 1999
  • 데이콤은 최근 비자코리아, 하나은행, 한미은행과 함께 기업간 비즈니스 사이트인 '비즈니스 몰'을 개설하고 지난 한달간의 시범서비스를 거쳐 이달부터 기업을 대상으로 본격적인 서비스에 나선다. 데이콤 '비즈니스 몰'에 대해 알아본다.

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