• Title/Summary/Keyword: Young plants

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Chemistry, Biology and Natural Products

  • Sankawa, Ushio
    • 한국응용약물학회:학술대회논문집
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    • 한국응용약물학회 1998년도 Proceedings of UNESCO-internetwork Cooperative Regional Seminar and Workshop on Bioassay Guided Isolation of Bioactive Substances from Natural Products and Microbial Products
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    • pp.22-26
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    • 1998
  • The medicinal plants have been used as drugs for thousands of years and many of them are used in traditional medicines. How long are these medicinal plants used as drugs\ulcorner Ebers papyrus (BC 1550) is one of the oldest documents which described more than 700 kinds of herbal drugs. Some of herbal medicines described in the papyrus are familiar and ‘Opium’ is a good example. Some of the drugs described in the papyrus are hardly recognized as drugs by the standard of present day. We can trace back the history of medicinal plants from quite different approach. The investigations on group behavior of chimpanzees in Africa by ‘The Primate Institute of Kyoto University’ has revealed that chimpanzees suffered illness take specific plants which are not taken as daily food stuff. The chemical analysis clarified that the plants contain very bitter constituents and suggested that chimpanzees take medicinal plants to cure their illness. It is worth to note that young chimpanzees just learn what elder ones take when they suffer illness, but elders never teach to their children! It is no doubt that the chimpanzee's medicinal plants were found by random, and try and error screening. The medicinal plants found in this study have been used as herbal medicines by the peoples in the region.

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고대산 북서사면(경기도 연천군) 지역의 식물상 및 산림군락 분류에 관한 연구 (A Study of Flora and Community Classification of Forest Vegetation in Northwest Slope of Mt. Godae(Gyeonggi-do, Yeoncheon-gun))

  • 김남영;김흥식;김영설;김정유;박완근
    • Journal of Forest and Environmental Science
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    • 제20권1호
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    • pp.11-27
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    • 2004
  • 2003년 3월부터 10월까지 고대산을 대상으로 식물상과 산림군락을 조사하였다. 관속식물은 94과 299속 481종 1아종 66변종 4품종 1교잡종으로 총 553종류인 것으로 나타났으며, 한국특산식물은 8과 11속 13종 총 13종류, 희귀 및 멸종위기식물은 12과 15속 15종 총 15종류, 귀화식물은 9과 15속 17종 총 17종류로 나타났다. 산림군락은 신갈나무-철쭉군목, 신갈나무-생강나무군단, 갈참나무-신갈나무군락, 굴참나무신갈나무군락, 당단풍-신갈나무군락으로 전체 1군목, 1 군단 3군락이 분포하는 것으로 나타났다.

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장군봉(봉화군) 일대의 관속식물상 (A Flora of Vascular Plants of Mt. Janggunbong (Bonghwa-gun))

  • 남보미;정선;김재영;오병운;정규영
    • 한국자원식물학회지
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    • 제29권4호
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    • pp.467-478
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    • 2016
  • 본 연구는 경북 봉화군에 위치하는 장군봉(1,136 m)에 분포하는 관속식물을 밝히고 그들의 유용성을 파악하기 위하여 실시되었다. 2006년 5월부터 2015년 9월까지 총 15회에 걸쳐 조사된 식물은 총 82과 279속 397종 2아종 55변종 8품종 총 462분류군으로 확인되었다. 이 중 한국특산식물은 10분류군, 산림청 지정 희귀식물 중 멸종위기종 1분류군, 취약종 5분류군, 약관심종 7분류군, 환경부 지정 식물구계학적 특정 식물 중 Ⅳ등급이 8분류군, Ⅲ등급이 14분류군으로 확인되었다. 이들을 유용성에 따라 구분했을 경우 식용 352종류, 목초용 107종류, 약용 71종류, 관상용 18종류, 목재용 8종류, 염료용 5종류, 공업용 3종류, 섬유용 2종류의 순으로 나타났고, 이 외에 용도를 알 수 없는 식물이 111종류로 확인되었으며, 귀화식물은 28분류군으로 파악되었다.

The Effects of Standardization for the Nuclear Power Plants in Korea

  • Kim, Kyoung-Pyo;Kim, Seung-Su;Lee, Young-Gun
    • 품질경영학회지
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    • 제18권2호
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    • pp.69-80
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    • 1990
  • This paper highlights the economic effects of nuclear power plants standardization in Korea. The major effects of nuclear power plants standardization appear in the reduction of time-related costs. By using this major economic effects of standardization, an optimal plant mix of electric power until the year 2005 is suggested by means of WASP computer model. And the effects between the standardized case and the non-standardized case is compared.

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Inhibitory Effects of Malaysian Medicinal Plants on the Platelet-Activating Factor (PAF) Receptor Binding

  • Jantan, Ibrahim Bin;Kang, Young-Hwa;Suh, Dae-Yeon;Han, Byung-Hoon
    • Natural Product Sciences
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    • 제2권2호
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    • pp.86-89
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    • 1996
  • Methanolic extracts of 25 species of Malaysian medicinal plants were screened for platelet-activating factor (PAF) receptor binding activity using rabbit platelet. Extracts of Cinnamomum sintoc, Ixonanthes iconsandra, Paederia foetida, Piper aduncum, Premna integrifolia, Ardisia crispa, and Ardisia elliptica showed significant inhibitory effect on the platelet-activating factor (PAF) receptor binding.

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소규모 현장 오수처리시설의 유지관리를 위한 Monitoring System 개발 (Development of the Monitoring System for maintaining On-site Wastewater Treatment Plants)

  • 조영현;권순국
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 2001년도 학술발표회 발표논문집
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    • pp.417-420
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    • 2001
  • The monitoring system for maintaining on-site wastewater treatment plants(Biofilter) was developed. Proposed system applied PLC(Programmable Logic Controller) technique. In process of development, the research against the monitoring parameters which will be able to represent condition and operation of the plants was accomplished. These parameters are ORP(Oxidation-Reduction Potential), Water Level, Pump and Power on/off. Also, to measure, collect, transfer and display these parameters, DMU(Data Measurement Unit), MCU(Main Controller Unit) and Display Board were produced.

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무선통신시스템 활용을 위한 원자력발전소 EMC 확보방안에 관한 연구 (A Study on the EMC for Application of Wireless Communication System in Nuclear Power Plants)

  • 고도영;배병환
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년 학술대회 논문집 정보 및 제어부문
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    • pp.500-502
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    • 2006
  • Recently, nuclear power plants have been testing for application of wireless communication system to improve communication easier. Improving the availability of communication in NPPs, plant operation ability and good communication have contributed to the lower reactior trip frequency. In these regards, the possibilities of improvement in communication systems are reviewed detail. Especially, we reviewed the wire communication system, facility effect, regulation and new technologies. In this paper, we described the application of wireless in NPPs by studying EMI/RFI, EMC effect.

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한국산(韓國産) 식물중(植物中) polyacetylene계(系) 화합물(化合物)의 검색(檢索)(II) (The Screening of Polyacetylenic Compounds in Korean Plants (II))

  • 문창규;김영일
    • 생약학회지
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    • 제7권2호
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    • pp.123-125
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    • 1976
  • Seven species of Umbellifer-plants and five Compositae-plants were examined for the presence of polyacetylenic compounds. By using the UV-and IR-spectrometric technique combined with preparative T.L.C., the presence of polyacetylenic compounds was identified in Heracleum moellendorffi $H_{ANCE}$ and Aster scaber $T_{HUNBERG}$.

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First Report of Ceriporiopsis resinascens (Phanerochaetaceae, Basidiomycota) in Korea

  • Lee, Jin-Sung;Woo, Eun-Ju;Lim, Young-Woon
    • Mycobiology
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    • 제37권4호
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    • pp.305-307
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    • 2009
  • An unrecorded Ceriporiopsis species was collected at Mt. Gariwang, Gangwon Province, in 2008. Based on morphological characteristics, such as a fully resupinate basidiocarp, a reddish white to pinkish poroid hymenophore and a monomitic hyphal system with clamp connections, the species was identified as Ceriporiopsis resinascens. This is the first report of Ceriporiopsis resinascens in Korea. We confirmed the identity of the species as Ceriporiopsis resinascens based on ITS sequence analysis.

속리산국립공원 특별보호구인 망개나무 자생지에 분포하는 관속식물상 (Vascular Plants Distributed in the Berchemia berchemiaefolia of Special Protection Zones of Songnisan National Park)

  • 오현경;김영하;윤상기
    • 한국환경복원기술학회지
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    • 제20권3호
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    • pp.33-44
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    • 2017
  • This study investigated in the vascular plants of special protection zones (the native land of Berchemia berchemiaefolia in Sadam-ri and Gallon valley) of Songnisan National Park and identified the whole vascular plants. The numbers of vascular plants were summarized as 273 taxa including 82 families, 182 genera, 236 species, 3 subspecies, 28 varieties and 6 forms. Woody plants were identified as 124 taxa (45.4%) and herbaceous plants as 149 taxa (54.6%). A total of 107 taxa were identified in the area of Sadam-ri, and 246 taxa were found in the Gallon valley. A total of 8 taxa of rare plants were identified, each of which was divided into 1 taxa of endangered (EN; Daphne pseudomezereum var. koreana), 3 taxa of vulnerable (VU; Paeonia japonica, Berchemia berchemiaefolia and Iris minutiaurea), 3 taxa of least concern (LC; Aristolochia contorta, Syringa patula var. kamibayshii and Goodyera schlechtendaliana) and 1 taxa of data deficient (DD; Alangium platanifolium). The Korean endemic plants were 9 taxa (Clematis trichotoma, Thalictrum actaefolium var. brevistylum, Aster koraiensis, Cirsium setidens, etc.). In the specific plants by floristic region were 34 taxa, a degree I were 17 taxa (Chloranthus japonicus, Celastrus stephanotifolius, etc.), 9 taxa of a degree II (Euonymus pauciflorus, Acer triflorum, etc.), 4 taxa of a degree III (Aconitum longecassidatum, Angelica gigas, etc.), 2 taxa of a degree IV (Ulmus macrocarpa and Daphne pseudomezereum var. koreana), 2 taxa of a degree V (Berchemia berchemiaefolia and Alangium platanifolium). The naturalized plants were 5 taxa including Fallopia dumetorum, Trifolium repens, Ailanthus altissima, Oenothera biennis, Erigeron annuus. Naturalization rate (NR) was 1.8% of all 273 taxa of vascular plants and the invasive alien plants were not found. The purpose of this study is to identify the flora that grows in the special protection zones of Songnisan National Park and provide the basic data for the management of the special protection zone in the future.