• Title/Summary/Keyword: 해초

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Biosystematic Studies on the Marine Fouling Invertebrates in Korea- A Systematic Study on the Ascidians from Chundo Island(Onsan Bay), Korea- (한국 해산 오수무척추동물의 생물계통학적 연구 - 춘도(온산만) 해초류의 분류 -)

  • 노분조;최병래;송준임
    • Animal Systematics, Evolution and Diversity
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    • v.12 no.3
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    • pp.221-235
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    • 1996
  • The ascidians of Chundo Island are identified into 15 species, 8 genera, 6 families. Among them two species are found to be new to Korean fauna. They are Ascidia sydneiensis Stimpson and Ascidia zara Oka. They are described with figures, and the other species are provided with remarks.

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A Systematic Study on the Ascidians in Korea (한국산 해초류의 분류학적 연구)

  • 노분조;이지은
    • Animal Systematics, Evolution and Diversity
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    • v.7 no.2
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    • pp.195-220
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    • 1991
  • This study on the systematic study of ascidians from Korea was based on the materials collected at 41 localities from July 1969 to September 1989. 40 species, eight families, three suborders in two orders were identified, Of these four species were new records for Korean waters ; Polyclinum planum, Didemnum candidum, Stylea plicata, and Molgula calvata. They were described with illustrations, and the species which were characterized by spicules and siphonal armatures were added with plate figures.

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Two Species of Notodelphyid Copepods(Cyclopoida) Associated with Ascidians in Korea (해초류에 공생하는 한국산 요각류 2종)

  • In-Soon Seo;Boon-Ju Rho
    • Animal Systematics, Evolution and Diversity
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    • v.14 no.2
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    • pp.105-116
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    • 1998
  • Two species of notodelophyid copepods, Doroixys uncinata Kerschner, 1879 and Dorophygus rigidus Ooishi, 1962 are redescribed on the basis of the specimens taken from the ascidians deposited at the Department of Biological Science, Ewha Womans University. The former species were taken from the test of the commpound ascidian Aplidium glabrum(Verrill), and the latter from the body cavity of the solitary ascidians Cnemidocarpa irene(Hartmeyer) and Stylea tokiokai Nishikawa.

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패각의 어초 사료 배양기질로의 활용 가능성

  • OGaWa, HiRoSi
    • 어항어장
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    • s.80
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    • pp.47-49
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    • 2007
  • 패각을 사용한 사료 배양기질은 패각에 의해 복잡한 공간이 다수 형성되어 많은 소형 생물의 증식에 좋은 조건을 만들어 내고 도 패각에 부착한 소형 생물을 먹기 위해 물고기가 모이고, 많은 해초류도 번성하는 것으로 알려져 있다.

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Adsorption Characteristics of Cr6+ and As3+ Using Seaweed Biochar (해초 Biochar를 이용한 Cr6+과 As3+ 흡착 특성)

  • Kim, Bo-Ra;Shin, Woo-Seok;Kim, Young-Kee
    • Applied Chemistry for Engineering
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    • v.26 no.4
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    • pp.483-488
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    • 2015
  • This study examined the adsorption characteristics of $Cr^{6+}$ and $As^{3+}$ in the aqueous solution by Hizikia susiformis biochar which was collected from Jeju Island. The optimal pH for $Cr^{6+}$ and $As^{3+}$ adsorption were 2 and pH 6, respectively. Kinetic data showed that the adsorption occurred during the first 100 min, and the most of heavy metals were bound to biochars within 300 min. Moreover, the kinetic data presented that the course of adsorption follows the Pseudo first and second order models. The equilibrium data were well fitted by the Langmuir model and the $Cr^{6+}$ adsorption capacity (25.91 mg/g) was higher than that of $As^{3+}$ (16.54 mg/g). From these results, the seaweed biochar was shown to be a efficient adsorbent for $Cr^{6+}$ and $As^{3+}$ metals in a contaminated environment.

Ecological Characteristics of the Epiphytes on Seagrass - II. Effects of Physico-chemical Factors on Eelgrass (Zostera marina L.) and Epiphytes (해초에 부착하는 부착생물 군집의 생태학적 특성 - II. 물리화학적 요인이 잘피 및 부착생물에 미치는 영향)

  • Chung, Mi Hee;Youn, Seok-Hyun
    • Korean Journal of Environmental Biology
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    • v.30 no.3
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    • pp.272-279
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    • 2012
  • This was the second study on the ecological characteristics of the epiphytes on seagrass leaf. The objective of this study was to understand the variation of epiphytes on seagrass leaf depending on the change of physico-chemical factors such as salinity, nutrients, and etc. This study showed the four results. 1) The eelgrass growth was influenced by water temperature, suggesting the positive correlation between eelgrass growth and water temperature. 2) The epiphytes growth on seagrass leaves did not show the correlation with water temperature, but negatively correlated with salinity. 3) The eelgrass growth decreased when the concentraion of nitrogen increased. 4) However, loads of epiphytes increased when the concentration of total nitogen (TN), nitrate ($NO_3^-$), and nitrite ($NO_2^-$) were high. This increase of epiphytes growth could be suggested in the cause-effect pathway of nutrient enrichment leading to seagrasses loss.

Investigation of the Effect of Seaweed Nanofibers in Jute Fiber-reinforced Composites as an Additive (해초 나노섬유가 황마섬유 강화 복합재료의 기계적 물성에 미치는 영향)

  • Kim, Jae-Cheol;Lee, Dong-Woo;Song, Jung-Il
    • Composites Research
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    • v.31 no.6
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    • pp.398-403
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    • 2018
  • Recently, environmental pollution caused by plastic waste, ecosystem disturbance of micro-plastics and human body accumulation are becoming big problems. In order to replace the traditional plastic, eco-friendly resin and natural fiber-based composite materials have been developed, but they have a disadvantage that their mechanical properties are significantly lower than those of synthetic fiber-based composites. In this study, eco - friendly nanofiber was extracted from seaweed and used as an additive in order to improve the mechanical properties of jute fiber-reinforced composites. Through the hand lay-up process, the composites were fabricated, and it was confirmed that the nanofiber was effective in improving the mechanical properties of natural fiber composites through tensile, bending and drop weight impact tests.

발명계 소식

  • (사)한국여성발명협회
    • The Inventors News
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    • no.27
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    • pp.3-4
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    • 2004
  • 한국특허정보원 `대한민국경영품질대상` 품질경영부문 최우수상 수상 - 웰빙 붐과 함께 건강양말이 뜨고 있다 - 중기육성자금 1조2천억원으로 확대 - 한국과학재단 `올해의 여성과학기술자상` 공모 - (주)우리식품 `해초록 아이스 찰떡` 선보여 - 네팔의 어린 소녀에게 전달된 장비 상자 - 정지용의 `향수` 상표권 되찾기 위한 취소 심판 열려 - 박세준 이앤테크 대표 발명 노하우 공개 - 특허청, 세계 최초 WIPO와 온라인 문서교환 시스템 구축

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핵산관련물질의 생관기술과 현황

  • Bae, Moo
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1977.10a
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    • pp.199.2-200
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    • 1977
  • 일본에서는 말린 해초(kombu)와 고기근육(katsuobushi)등이 식품의 맛을 내주는 물질로 널리 사용되어왔다. Ikeda와 kodama씨는 친자의 맛은 구루탐산 나트륨, 후자의 맛은 이노신산나트륨으로부터 기인하는 것이라고 설명하였다. 미생물에 의한 구루탐산나트륨의 생산은 1957년 Kinoshita씨 등에 의하여 확립되었고 극히 적은 양이나마 5'-IMP가 삶은 고기와 오징어로부터 얻어졌다.(중략)

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