• Title/Summary/Keyword: root structure

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The Change of toxical Structure by Causativization in Korean: a generative lexicon approach (한국어 사동화와 어휘의미구조의 변화: 생성어휘부(Generative Lexicon) 이론에 의한 접근)

  • 김윤신
    • Language and Information
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    • v.6 no.2
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    • pp.57-82
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    • 2002
  • This study explores the lexical-semantic structure of derived causative verbs in Korean based on Pustejovsky(1995)'s Generative Lexicon Theory (GL). Morphological causative verbs are derived from their root stems by affixing ‘-i, -hi, -li, -gi’ in Korean and the meanings of derived predicates are closely related to the meanings of their root verbs. In particular, the change of the ARGUMENT STRUCTURE by morphological derivation leads to the change of the EVENT STRUCTURE. The ARGUMENT STRUCTURES of derived causative verbs include a causer argument, which is added to the ARGUMENT STRUCTURE of their root verbs by means of the causative derivation. Their EVENT STRUCTURE has a headed process related to a causer and its result is the event which their root verbs denote. This approach can also suggest that the (in)directness of causative is dependent on is the semantics of its root verb.

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사동화에 의한 논항구조와 사건구조와 변화

  • 김윤신
    • Proceedings of the Korean Society for Language and Information Conference
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    • 2001.06a
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    • pp.25-58
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    • 2001
  • This study explores the lexical-semantic structure of derived causative verbs in Korean based on Pustejovsky(1995)'s Generative Lexicon Theory (GL), Mor-phological causative verbs are derived from their root stems by affixing ‘-i, -hi, -li, -gi’ in Korean and the meanings of derived predicates are closely related to the meanings of their root verbs. In particular, the change of the ARGUMENT STRUCTURE by morphological derivation leads to the change of the EVENT STRUCTURE. In this study, causation is defined as the cause-effect relation having a causer. The ARGUMENT STRUCTURES of derived causative verbs includes a causer argument, which is added to the ARGUMENT STRUCTURE of their root verbs. Their EVENT STRUCTURE has a headed process related to a causer and their result is the event which their root verbs represent. This approach can also suggest that the (in)directness of causative is determined by which verb is its root and explain the difference between the morphological causativization and the syntactic causativization in Korean.

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Analysis of Field Condition for Proper Waterproofing Materials applied to Green Roof System for Depot (도시철도 차량기지의 기반녹화에 적합한 방수시스템 선정을 위한 환경 조건 분석)

  • Min, Kwang-Man;Kwon, Shi-Won;Choi, Sung-Min;Kwak, Kyu-Sung;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.11a
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    • pp.127-131
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    • 2006
  • Depot have a lagged behind structure in the side of building up the view. With this reason, people have been recognized depot as hatred facility causes to have car noise, air pollution. In the other hand, depot become a underground and complex facility as a higher-value added building, and moreover, it need to understand the environment that depot structure have a specific field condition to apply green roof system. 1) Analysis proper waterproofing material and root barrier apply to depot need root penetrating test method 2) Suggest root barrier and waterproofing material relate to maintain and construction for green roof system 3) Construction condition for depot have crack movement of structure by vehicle vibration and root penetrating force by plant growth

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Test for Root Penetration Resistance for Waterproofing Layer proper to assure Structural Safety on the Concrete (인공녹화 기반 콘크리트 구조체의 안전성 확보를 위한 옥상녹화 방수층의 내근성 평가)

  • Kwon, Shi-Won;Sun, Yun-Suk;Kwak, Kyu-Sung;Oh, Sang-Keun
    • Proceedings of the Korea Concrete Institute Conference
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    • 2006.11a
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    • pp.873-876
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    • 2006
  • At the green roof on the concrete structure, root penetration can be the most problem to water leakage. Root occur cracks due to penetrate to concrete which have porous organization by itself. Crack on the concrete structure would be constantly shrinks and expands, it occur to water leakage and decrease durability of concrete structure. Therefore, in this paper, the result of the root penetration test for waterproofing which protect concrete structure from the water leakage or other environment conditions would be apply to understand the reason of root penetration.

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A Study on the Workability and Application of Cooper Plate based on the Waterproofing and Root Penetration Resistance (옥상녹화 방수 및 방근 기술로서 동판재의 적합성 및 시공성에 관한 연구)

  • Park, Chang-Hwa;Cho, Il-Kyu;Kwon, Shi-Won;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.04a
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    • pp.151-154
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    • 2007
  • To build up the green roofs, it must not adverse effect to durability and structural safety. That is conducted by safety system which consist of waterproofing to form basically, root barrier to protect the waterproofing. The reason why root barrier form is to protect the penetration force of root growth and the root could penetrate concrete surface, move inward so far. It may cause shorten the life span on concrete structure. For this problem, government constantly demand the solution to form the root barrier for waterproofing and concrete structure before the building is service. However, the technical action is not fully prepared. Therefore, in this study, we would like to suggest the workability and suitability of the copper plate to solve not only the side of waterproofing but also root barrier for green roof system and exhibit the mechanism for root penetration resistance and corrosion resistance.

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A Study on Test Methods for Performance Appraisal of Root Barrier Appling to Green Roofs (옥상 및 인공지반녹화용 방근재의 성능기준 설정을 위한 방근성 시험방법에 관한 연구)

  • Oh, Sang-Keun;Kwak, Kyu-Sung;Sun, Yoon-Suk;Kwon, Shi-Won
    • Journal of the Korea Institute of Building Construction
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    • v.7 no.1 s.23
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    • pp.79-84
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    • 2007
  • Selection of proper root barrier as destination part of greening is very important in Root penetration resistance plan. To select proper root barrier, it need to understand composition of greening part, size, kind of plant, connection with waterproofing layer. In this point of view, we have establish greening on the roof or concrete structure, not been understand the structural mechanism. It means that we misunderstood about purpose of greening and using it. So, chosen materials and construction method was not proper for greening, it caused water leakage and decrease performance of concrete structure. Therefore, we would suggest 5 items of test methods considering environmental condition for green roof. Watertightness by water of greening part, root penetration resistance test by root penetration, bacteria resistance by must or bacteria in soil, chemical resistance by rain and chemical agent of fertilizer, and load resistance by soil depth, size of plant. These suggested test methods could be referred as guideline to test in green roof system because of not exist any performance appraisal guideline or standard. Consequently, it should be analysis as technical and institutional subdividing test methods and it need to study constantly as varied angles.

A Study on the Performance Appraisal for Copper Sheet as Root Barrier Material Appling to Green Roof System (옥상녹화 및 인공지반녹화용 구리시트 방근재의 성능평가에 관한 연구)

  • Cho, Il-Kyu;Kwon, Shi-Won;Kwak, Kyu-Sung;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.04a
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    • pp.5-8
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    • 2007
  • Selection of proper root barrier as destination part of greening is very important in Root penetration resistance plan. To select proper root barrier, it need to understand composition of greening part, size, kind of plant, connection with waterproofing layer. In this point of view, we have establish greening on the roof or concrete structure, not been understand the structural mechanism. It means that we misunderstood about purpose of greening and using it. So, chosen materials and construction method was not proper for greening, it caused water leakage and decrease performance of concrete structure. Therefore, we examine the practical use of copper sheet considering environmental condition for green roof. Watertightness by water of greening part, root penetration resistance test by root penetration, bacteria resistance by must or bacteria in soil, chemical resistance by rain and chemical agent of fertilizer, and load resistance by soil depth, sire of plant. These suggested test methods could be referred as guideline to test in green roof system because of not exist any performance appraisal guideline or standard. Consequently, it should be analysis as technical and institutional subdividing test methods and it need to study constantly as varied angles.

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Cytogenetic and Histological Characteristics of Ginseng Hairy Root Transformed by Agrobacterium rhizogenes (Agrobacterium rhizogenes에 의하여 형질전환된 인삼 모상근의 세포 유전학적 및 조직학적 특성)

  • 고경민
    • Journal of Plant Biology
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    • v.36 no.1
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    • pp.75-81
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    • 1993
  • Ginseng (Panax ginseng C.A. Meyer) hairy root transformed with Agrobacterium rhizogenes (strain A4) was examined cytogenetically and histologically to assess its characteristics. The optimum growth of hairy root obtained in hormone-free MS medium (sucrose 30 g/L, pH5-6) for long period cultures. All hairy root strains (HB1, HB2, HB3) had the 2n diploid number (2n=48) of chromosomes in root tip cells. There were no alteration in chromosome structure except in one cell of HB3 strain. Results of SDS-PAGE showed a few difference in pattern and number of bands between normal and hairy root of ginseng. The root anatomy of normal root and hairy root differed each other. The hairy root had a clearly defined vascular strand, and the morphology of cortical cells were disorganised with large intercellular spaces.

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Bioceramic Effects to Enhance Secondary Metabolites Production in Tissue Culture of Some Medicinal Plants

  • Kim, Yu-Jeong;Hwang, Baik;Ahn, Jun-Cheul
    • Korean Journal of Medicinal Crop Science
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    • v.12 no.2
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    • pp.118-122
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    • 2004
  • We have investigated that a couple of soft ferrite ceramic powders having a spinal structure have shown the effect on growth and secondary metabolites production of some medicinal plants cultured in vitro. The addition of the ceramic powders as bare state to culture medium has stimulated the growth of Achyranthes japonica callus and plantlet, adventitious root of Hyoscyamus niger and Platycodon grandiflorum hairy root about 65, 75, 150 and 50%, respectively. Whereas Centella asiatica callus and plantlet, Scopolia parviflora hairy root, and Hyoscyamus albus adventitious root were not affected markedly. Moreover, the ceramic powder has enhanced the growth of H. niger adventitious roots even under conditions of irradiating alone without any direct contact between ceramic powder and media. Based on growth stimulation effect, the ceramic powders have enhanced the gross production of tropane alkaloid in H. niger adventitious root, and polyacetylene in P. grandiflorum hairy root about 35 and 30%, respectively.