• 제목/요약/키워드: Useful plants

검색결과 1,075건 처리시간 0.027초

영상처리에 의한 식물체의 형상분석 (Analysis of Plants Shape by Image Processing)

  • 이종환;노상하;류관희
    • Journal of Biosystems Engineering
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    • 제21권3호
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    • pp.315-324
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    • 1996
  • This study was one of a series of studies on application of machine vision and image processing to extract the geometrical features of plants and to analyze plant growth. Several algorithms were developed to measure morphological properties of plants and describing the growth development of in-situ lettuce(Lactuca sativa L.). Canopy, centroid, leaf density and fractal dimension of plant were measured from a top viewed binary image. It was capable of identifying plants by a thinning top viewed image. Overlapping the thinning side viewed image with a side viewed binary image of plant was very effective to auto-detect meaningful nodes associated with canopy components such as stem, branch, petiole and leaf. And, plant height, stem diameter, number and angle of branches, and internode length and so on were analyzed by using meaningful nodes extracted from overlapped side viewed images. Canopy, leaf density and fractal dimension showed high relation with fresh weight or growth pattern of in-situ lettuces. It was concluded that machine vision system and image processing techniques are very useful in extracting geometrical features and monitoring plant growth, although interactive methods, for some applications, were required.

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Pseudomonas aeruginosa ATCC 27853에 대한 약용식물 추출물들의 활성 (Activity of Nature Plants Extracts against Pseudomonas aeruginosa ATCC 27853)

  • 음진성
    • 한국정보통신학회논문지
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    • 제16권8호
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    • pp.1799-1804
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    • 2012
  • Pseudomonas aeruginosa에 대한 항균물질을 찾기 위하여 한의학에서 전통적으로 사용되어 오던 34종류 약용식물로부터 에탄올 추출물들을 분리하여 항균활성을 조사하였다. Gardenia jasminoides, Arctium lappa, Citrus unshiu 및 Phellodendron amurense 등의 에탄올 추출물들이 P. aeruginosa ATCC 27853에 대해서 항균활성을 나타냈다. 이들 중 Gardenia jasminoides의 에탄올 추출물은 P. aeruginosa에 대해 강한 항균활성을 나타냈다. 앞으로 이들 약용식물들의 추출물들이 P. aeruginosa에 대한 천연항균물질로서 사용될 수 있을 것으로 기대된다.

자생초화류의 고속도로 조경식물 활용성 연구 (Utilization of Native Plants for Highway Landscaping)

  • 전기성;정태건;소재현
    • 한국환경복원기술학회지
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    • 제2권4호
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    • pp.74-84
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    • 1999
  • The purpose of this study was to figure out the utilization of native plants for highway landscape. The field and nursery experiments were conducted from January of 1996 to December of 1998 on the Chonju Arboretum and Honam highway in Korea Highway Corporation. We have investigated thirty species of native plants and came to a conclusion that Chrysanthemum zawadskii var. latilobum, Aster koraiensis, Iris nertschinskia, Fennisetum alopecuroides, Viola kapsanensis are very suitable for highway landscaping. And, if the problems raised during this investigation are resolved, it is clear that Polygonatum odoratum var. plurijlorum, Belamcanda chinensis, Allium thunbergii, Ophiopogon japonicus, Dianthus superbus var. longicalycinus, Disporum sessile, Lilium tigrinum, Caryopteris incana, Aquilegia flabellata var. pumila, Pulsatilla koreana, Aster spathulifolius etc. can be useful plants at highway landscaping.

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목본성 식물의 휘발성 성분 GC/MS 분석 (GC/MS analysis of volatile constituents from woody plants)

  • 이동구;최경;이상현
    • 농업과학연구
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    • 제38권4호
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    • pp.723-730
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    • 2011
  • To search for the new development of industrial application of woody plants, the chemical composition of the volatile constituents from woody plants (Evodia daniellii, Clerodendron trichotomum, Prunus padus, and Zanthoxylum ailanthoides) was determined by GC and GC/MS spectrometric analysis with the aid of NBS, Wiley Library and RI indice searches. The major constituents were t-ocimene from the leaves of E. daniellii, linalool from the leaves of C. trichotomum, benzaldehyde from the leaves and twigs of P. padus, ${\beta}$-thujene from the leaves of Z. ailanthoides, and 2-undecanone from the stems of Z. ailanthoides. These results suggested that the major volatile constituents of woody plants could be a useful lead compound in the development of functional materials for industrial application.

Effects of Several Salt Marsh Plants on Mouse Spleen and Thymus Cell Proliferation Using MTT Assay

  • Seo, Young-Wan;Lee, Hee-Jung;Kim, You-Ah;Youn, Hyun-Joo;Lee, Burm-Jong
    • Ocean Science Journal
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    • 제40권4호
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    • pp.209-212
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    • 2005
  • In the present study, we have tested the effects of 21 salt marsh plants on cell proliferation of mouse immune cells (spleen and thymus) using MTT assay in culture. The methanolic extracts of six salt marsh plants (Rosa rugosa, Ixeris tamagawaensis, Artemisia capillaris, Tetragonia tetragonoides, Erigeron annus, and Glehnia littoralis) showed very powerful suppressive effects of mouse immune cell death and significant activities of cell proliferation in vitro. Especially, the methanolic extract of Rosa rugosa was found to have fifteen times compared to the control treatment, demonstrating that Rosa rugosa may have a potent stimulation effect on immune cell proliferation. These results suggest that several salt marsh plants including Rosa rugosa could be useful for further study as an immunomodulating agent.

카드뮴 스트레스에 대한 수생식물 5종의 엽록소형광 반응 (Characterization of Chl a Fluorescence of Hydrophytes under Cadmium Stress)

  • 오순자;진국림;고석찬
    • 한국환경과학회지
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    • 제18권12호
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    • pp.1361-1368
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    • 2009
  • The effects of $Cd^{2+}$ ions on the Chl a fluorescence of 5 hydrophytes (e.g. Lemna, Salvinia, Ricciocarp, Nymph, Typha plants) were investigated in order to select $Cd^{2+}$-sensitive plant species and to get informations on physiological responses of plants to $Cd^{2+}$ stress. Lemna plants were most sensitive to cadmium stress, while Nymph plants were tolerant. However, in all $Cd^{2+}$-treated plants, Fv/Fm, the maximum photochemical efficiency of PS II, decreased in proportion to the increase of $Cd^{2+}$ concentration and treatment time. The Chl a fluorescence transient O-J-I-P was also considerably affected by $Cd^{2+}$ ions; the fluorescence yield decreased consid- erably in steps J, I and P in $Cd^{2+}$ treated plants, although it followed a typical polyphasic rise in non-treated plants. In Lemna plants, the functional parameters, ABS/CS, TRo/CS와 ETo/CS and RC/CS, decreased in proportion to the increase of $Cd^{2+}$ concentration, while N, Mo and Kn increased. The structural parameters, ${\Phi}po$, ${\Phi}po$/($1-{\Phi}po$), Plabs, SFlabs, Kp and RC/ABS, also decreased according to the increase of $Cd^{2+}$ concentration. Consequently, Lemna plants will be useful as a experimental model system to investigate responses of plants. And several functional or structural parameters could be applied to determine quantitatively the physiological states of plants under stresses.

강원대학교 연습림내 연엽산(蓮葉山)과 구절산지역(九節山地域)의 식물상(植物相)에 관한 연구(硏究) (A Study on the Flora of Mt. Yeonyeob and Mt. Gujeol in the Experiment Forests of Kangwon National University)

  • 박완근;염규진;박선정
    • Journal of Forest and Environmental Science
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    • 제13권1호
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    • pp.1-27
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    • 1997
  • 강원대학교 연습림의 연엽산과 구절산 지역을 대상으로 식물상(植物相)을 조사한 결과, 관속식물자원(管束植物資源)은 98과(科) 345속(屬) 551종(種) 2아종(亞種) 88변종(變種) 10품종(品種) 2잡종(雜種)으로 총 653분류군이 분포하는 것으로 나타났다. 이들 소산식물(所産植物)중 한국특산식물(韓國特産植物)은 20종류, 그리고 희귀(稀貴) 및 멸종위기식물(滅種危機植物)은 18종류가 분포하였으며, 자연생태계(自然生態系)에 예측할 수 없는 영향을 초래하는 귀화식물(歸化植物)은 27종류가 출현하였다. 귀화식물 종류수에 의한 자연파괴도(自然破壞度)(UI)는 약 12.4%로 나타났다. 또한 소산식물(所産植物)들의 유용도(有用度)는 식용자원(食用資源)(42.1%), 약용자원(藥用資源)(33.8%), 목초용(牧草用)(28.8%), 관상자원(觀賞資源)(11.8%), 목재자원(木材資源)(5.2%), 섬유자원(纖維資源)(1.4%), 공업용(工業用)(1.1%) 등의 순으로 나타났으며, 아직 용도가 밝혀지지 않은 식물자원도 140종류(21.4%)로 나타났다.

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모듈형 식물장식을 활용한 실내공간 장식방법에 대한 연구 (A Study on the Methods of the Decorations Using Module Plants in Interior Spaces)

  • 이종란
    • 한국실내디자인학회논문집
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    • 제24권5호
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    • pp.62-69
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    • 2015
  • The purpose of this research is to analyze the methods of the decorations using module plants in interior spaces. This research produced 18 types of the module plant decoration: considering the classifications of module plants(soil, hydroculture, moss), directions of module plants (up, side, down), assembling ways of module plants (horizontal, vertical). Applying these 18 types to the interior space decoration (floor stand, wall attach, ceiling hanging), 54 types were classified. After that, 150 cases of the decoration using module plants in interior spaces were collected and analyzed. In result, the cases were belong to 25 types of 54 types. The important types were the types to be able to decorate wide area of walls or ceilings without occupying floor area: SOIL-UP-VERTICAL, HYDROCULTURE-UP-VERTICAL, MOSS-SIDE-VERTICAL. These types were the decorations with function of bio-filter for air cleaning. Special types were SOIL-SIDE-HORIZONTAL, SOIL-SIDE-VERTICAL with soil developed not to pour and SOIL-DOWN-HORIZONTAL, SOIL-DOWN-VERTICAL with lucks not to pour soil. Plants will be used widely in interior design because of the awareness of eco-friendly design. The strength that module plants are portable, changable, able to exchange parts helps users to maintain plants in interior spaces. For designers, module plants are flexible materials in order to make variety of forms to adjust to interior spaces. The results of this research about methods of the decorations using module plants in interior spaces are useful to designers who want to design interior spaces eco-friendly and user-friendly.