• Title/Summary/Keyword: Tress

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Structural Analysis and Safety of FCT Inspection Automation System (FCT 검사 자동화 System의 구조해석 및 구조 안전성에 관한 연구)

  • Jeong, Hae-Jin;Lee, Jong-Chan
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.21 no.7
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    • pp.114-119
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    • 2022
  • The analysis conditions were established using the self-weight of the FCT automation equipment, and natural frequency analysis was performed under the same conditions. For the structural analysis, 3D modeling was performed using Inventor, and structural analysis was performed using the Ansys workbench. From the structural analysis, it was concluded that the resulting values of the stress and deformation of the equipment do not affect the equipment. From the dynamic analysis, the resonance does not occur in the equipment driving area, and thus it is judged to be stable.

Management Improvement of Big and Old Trees in the Byeol-seo Scenic Sites (별서 명승지역 내 노거수목의 관리개선방안)

  • Lee, Jong-Bum;Lee, Chang-Hun;Choi, Byoung-Jae;Lee, Jae-Keun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.31 no.1
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    • pp.98-107
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    • 2013
  • Big and old trees in the scenic spots with the attributes of remote villas are vulnerable to man-made damages and very sensitive to the external environment such as soil conditions, so the corresponding management plans are required. Thus this study has been conducted to survey the big and old trees in the scenic remote villas and suggest the ideal management plans. The results can be summarized as follows. First, regarding the tree heath above the ground, transformation of tree, death of branches, and death of barks are closely related to tree vigor. Particularly, the areas receiving many visitors require prompt countermeasures against the dried and dead tress above the ground and the areas in which dried and dead tress occurred and also the safety measures for the visitors and facilities. Second, regarding the soil environment, visitor traffic is closely related to the tree vigor. In 15 remote villa gardens, 64% of trees are exposed to heavy traffic and the tree vigor has declined due to an increase of visitor. Thus, there is a need to give positive consideration the installation of the complementary facilities and the plantation of herbal plants in the congested areas to form the ground surface that can tolerate the heavy visitor traffic. Third, remote gardens are in general located adjacent to ponds and mountain streams and thus the trees in the waterfront areas require the prompt countermeasures against the decline of growth due to the excess-moisture in the soil. Further the blockage of the sewage system due to the heavy rains dampens the surrounding soil, which results in lethal damages to the trees. Thus, there is a need of the maintenance of the waterfront areas and sewage system before and after the rainy season. In addition, there is a need to establish medium-long term management polices through the recognition of the importance of the main trees of remote villa gardens in scenic spots and prepare the tree management manual depending on the attributes of the corresponding areas. I strongly suggest making manuals for the systematic management as well as the extensive PR activities and education for the preservation of tress on a long-term basis; and furthermore securing the budget and manpower for the research and development of a systematic management system.

Disease Management in Road Trees and Pepper Plants by Foliar Application of Bacillus spp. (Bacillus spp. 엽면살포에 의한 가로수 및 고추의 병 방제)

  • Chung, Joon-hui;Ryu, Choong-Min
    • Research in Plant Disease
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    • v.22 no.2
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    • pp.81-93
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    • 2016
  • Out of plant-associated bacteria, certain plant growth-promoting bacteria (PGPB) have been reported to increase plant growth and productivity and to elicit induced resistance against plant pathogens. In this study, our objective was to broaden the range of applications of leaf-colonizing PGPB for foliar parts of road tress and pepper. Total 1,056 isolates of endospore-forming bacteria from tree phylloplanes were collected and evaluated for the enzymatic activities including protease, lipase, and chitinase and antifungal capacities against two fungal pathogens, Colletotrichum graminicola and Botrytis cinerea. Fourteen isolates classified as members of the bacilli group displayed the capacity to colonize pepper leaves after spraying inoculation. Three strains, 5B6, 8D4, and 8G12, and the mixtures were employed to evaluate growth promotion, yield increase and defence responses under field condition. Additionally, foliar application of bacterial preparation was applied to the road tress in Yuseong, Daejeon, South Korea, resulted in increase of chlorophyll contents and leaf thickness, compared with non-treated control. The foliar application of microbial preparation reduced brown shot-hole disease of Prunus serrulata L. and advanced leaf abscission in Ginkgo biloba L. Collectively, our results suggest that leaf-colonizing bacteria provide potential microbial agents to increase the performance of woody plants such as tree and pepper through spray application.

Upward and Lateral Translocation of $^32 P$ Supplied to Roots of Apple and Citrus Tress

  • Shim, Kyung-ku;Chung, Kyu-Hoi;Kwon, Shin-Han
    • Nuclear Engineering and Technology
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    • v.8 no.3
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    • pp.139-143
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    • 1976
  • $^{32}$ P was supplied to the roots of stem-ringed 1-year-old apple trees and 2-year-old citrus trees on which bark segments were isolated above and below the ring. $^{32}$ P was translocated to shoots and leaves although considerable translocation occurred especially in wood and bark tissues. The accumulation of $^{32}$ P in isolated bark segments indicated that the occurrence of these materials in this tissue was via radial translocation from xylem tissue, and that the main upward translocation pathway of $^{32}$ P supplied to roots is through the xylem.

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<거가잡복고(居家雜腹攷)>에 나타난 복색(服色)의 의미와 상징성

  • Jo, Hyo-Sun
    • Journal of the Korean Society of Costume
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    • v.17
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    • pp.83-91
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    • 1991
  • I observed the meaning and the symbolic charaeters about the color and style of clothes appearing at "GER GA JAP BOK GO" written by Kyu Soo Park. The black color of Hyun Eui as a ceremonial dress of man symbolizes Heaven and Virtue. The yellow color of Whang Sang as a ceremonial dress of man symbolizes the Earth and the Impartiality. The blue or black decoration line over white ground of Sim Eui as ordinary dress of man symbolizes also Filial Piety. In woman ordinary upper garment, So Eui, black texture edging with blue line implies the mutual symmetricity with her husband's. Besides, white color texture lining So Eui symbolical to a Devine Nature and Homage implies also the deep concealment of feminine body. The black ground color of child dress "Chi Po Eui" symbolizes Naivety, and the red silk color of it's decoration line, belt and tress ornaments implies the praise of the Virtue & Learning and also "Expel the Evil" of our traditional national characteristics. As described above the meaning and symbolic characters about the color and style of clothes appearing at "GER GA JAP BOK GO" has a very Chinese disposition, but it's author Kyu Soo Park modified somewhat to be in harmony with the real social situation of our Country during that latest stage of Yi Dynasty, because he was one of the prominent pragmatist at that time.

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The Research of Costume on Shin, Yun-Bok's Painting in Late Chosun Dynasty

  • Lee, Young-Jae
    • Journal of Fashion Business
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    • v.14 no.3
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    • pp.52-63
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    • 2010
  • The Hanryu(韓流) phenomenon in and around Asia looks like slowing down lately. At that time, the research about contents that can inform the high traditional culture of Korea is useful. The references which can make a study about cultural clothes, especially paintings, let us to infer the life of the people of that period. In this research, I try to study the characteristics of customs, symbol and costumes by analyzing the paintings of Shin, Yun-Bok who was genre painter of the late Chosun. The mens are wearing dopo(道袍) and are putting sejodae(細條帶) around their waists and gat(黑笠). Also, We can see many different types of job such police, official man, a buddhist priest, a barmair, kisaeng and shaman through the costume. Most of women in the paintings, They are wearing Deep blue skirts, banhwoejang pale tone jeogori and tress. We discussed the common lives of the people through genre painting. They have satire, humor, and symbolism. Also, we can look into the various lifestyles, customs of times and seasons, ceremonial occasions, civilian beliefs, and plays ransmitted from the past. The philosophy in Shin, Yun- Bok's genre painting, is close to Taoism not Confucianism.

Evaluation Method of Hairstyling Materials and its Application to Cosmetic Preparations

  • Abe, Hidetoshi;Iida, Ichiro;Someya, Takao
    • Proceedings of the SCSK Conference
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    • 2003.09a
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    • pp.1-12
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    • 2003
  • Instead of sensory evaluation, we designed an evaluation method of the setting function of hairstyling products, based on an original theory focusing on changes in bending stress observed when a load with continuous bending is applied to human hair. Specifically, we developed a device to measure bending stress to quickly and objectively evaluate the condition of human hair, particularly its dynamic properties such as the setting function, following the application of hairstyling products. This device generates a load with continuous bending while applying a pendulum motion to a hair tress, one end of which is anchored. The setting function and holding power of resins of various molecular weight and ionic properties were evaluated using this device. The results demonstrated a close correlation with those obtained by experts' sensory evaluation. The evaluation results of bending stress and holding rate confirmed that the combined use of two different resins could improve the function of setting preparations. Evaluation using this device was able to substitute for sensory evaluation, and offers quick objective evaluation and detection of changes in the holding power of hairstyling products over time. We conclude that evaluation using this device is a promising new method.

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ICP-CVD 방법에 의한 TiN diffusion Barrier Thin Film 형성

  • 오대현;강민성;오경숙;양창실;양두훈;이유성;이광만;변종철;최치규
    • Proceedings of the Korean Vacuum Society Conference
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    • 1999.07a
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    • pp.118-118
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    • 1999
  • CVD방법에 의한 TiN 박막 형성에 있어서 ICP-CVD 방법이 대두되고 있다. 이것은 precursor에 대한 radical 형성, 식각된 패턴에서 양 벽의 self-shadowing 효과, 낮은 tress등으로 dense 한 박막을 얻을 수 있기 때문이다. TiN 박막은 Si 기판의 온도를 상온에서 50$0^{\circ}C$까지 유지하면서 TEMAT의 유량을 5-20sccm으로 변화시키면서 증착하였다. 증착 후 TiN 박막의 결정화에 따른 열처리는 Ar과 N2-가스분위기에서 in-situ로 증착하였다. 증착 후 TiN 박막증착 조건수립에 따른 플라즈마 특성진단은 전자의 온도와 밀도, 평균 전자밀도, 이온 에너지 분포, radical 분포, negative 이온분포 등으로 측정하였다. 플라즈마 변수에 따른 TiN 박막의 결정성과 상 변화는 XRD로 분석하였고, 조성비 및 TiN 박막의 원소화학적 상태, 결합에너지, 각 상에 따른 결합 에너지 천이정도, 초기 형성과정 및 반응기구 등은 RBS와 XPS로 조사하였다. TiN 박막의 표면상태, morphology 거칠기, TiN/Si(100)구조에서 계면상태 등은 SEM, AFM, 그리고 HRTEM으로 분석하였다. TiN 구조 박막의 비저항, carrier concentration 그리고 mobility 측정은 박막의 표면이 균일하고 bls-홀이 없는 것으로 하여 4-point probe 방법으로 측정하였다. 이들 분석으로부터 ICP-CVD 방법에 의하여 형성된 TiN 박막이 초고집적 반도체 소자의 contact barrier layer로서의 적용 가능성을 평가하였다.

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The tress Analysis in the Fine-blanking deformation zone by the application of the FEM (유한요소법을 이용한 정밀진단 변형부의 응력해석)

  • 오환섭
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.8 no.6
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    • pp.84-91
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    • 1999
  • The goal of this study is to analyse the stress and the strain occurring within the work piece at the fine-blanking process and hence to assume the size direction and a distribution chart of the shearing stress as the penetration of the punch is being increased trough the application of the FEM. For this analysis we introduced the piece-wise linear method in the non linear structural analysis program for large deformation sheet metal forming and we defined it as the problem of the non linear contact. Therefore we modeled the above problems as quadratic-nodded axi-symmetrical elements for the character-istics of the work piece. From the result of this analysis it was found that the shearing stress is a great deal occurred on the surface of the work piece during the beginning process of the punch penetration and it's effect is expected to influence importantly for the formation of burnish because the deeper is the penetration of the punch in the narrow clearance zone. the greater is the degree of the strain stress.

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The Structure of an lsolated Evodia daniellii Community (고립된 쉬나무 군락의 구조)

  • 이종운
    • Journal of Life Science
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    • v.7 no.1
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    • pp.24-29
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    • 1997
  • The actual vegetation map, community composition and vegetation structure of an isolated Evodia daniellii community due to the urbanization were investigated. At the habitat of Evodia daniellii, east cliff of Mt. Sudo, I made 30 plots of 100m$^{2}$ and adjusted 15 times the aspect of vegetation in whole growing season. On the base of these data, synoptic vegetation table was constructed. The constellation diagram by the calculation of ${\chi}$$^{2}$-value based on the vegetation data shown three vegetation groups pf Albizzia julibrissin with 10 species, Zanthoxylum shinifolium with 12 species and Ulmus parvifolia with 6 species. Through the DBH measurement of 5 major tress, we found that Ailanthus altissima, Paulownia tomentosa and Zelkova serrata are dominant in present, but it will be change by Evodia daniellii.

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