• Title/Summary/Keyword: Cutting Direction

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A Study on the Wild Exochorda serratifolia for Landscape Horticuitural Cultivation (야생 가침박탈(Exochorda serratifolia)의 조경원예화에 관한 연구)

  • 이기선;한교필;박원조;김일섭
    • Journal of the Korean Institute of Landscape Architecture
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    • v.15 no.2
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    • pp.139-148
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    • 1987
  • Exochorda serratifolia, broad-leaved shrub has beautiful flowers and is resistant to cold, shade and decease. New this native plant is considered to be worth being exploited as the outstanding plant for landscaping and horticulture. So this study was executed to utilize Exochorda serratifolia as the planting material for landscaping and horticulture through the survey of its habitat environment and the experimennt of its seed physiology and germination, vegetative propagation, culture and utilization, etc.. The results are as follows ; 1. The color of the flower is white, blooming in the early and middle of May and the seeds ripen late in Sep.. 2. The elevation, elevation, gradient and direction of the native habitat were 250m, 20-25$^{\circ}$and northern side respectively. 3. The soil pH of the natural habitat was 5.3 and soil fertility was poor. 4. Exochorda serratifolia appeared as indicator within P. densiflora community and its neighboring species were Q. mongolica, Q. dentata, R. mucronulatum, L. obtusiloba, E. oxyphillus, C. heterolphylla, var thunbergii, etc.. 5. The optimum temperature for seed germination was found at 20$^{\circ}C$ and the longer the stratification period at 5$^{\circ}C$ was, the lower the germination rate was. 6. The treat merits of GA and Kinetin increased the seed germination rate, especially under the dark condition but their high concentrations decreased the seed germination rate. 7. The rooted rate of the greenwood cutting was the highest at IBA 100ppm plot of vermiculite bed but its high concentration decreased the rooted rate conspicuously. 8. In the tissue culture, the each 1.0 ppd plot of NAA, Kinetin and NAA 1.0ppm + Kinetin showed the best growth. And the mixture of NAA 1.0ppm and Kinetin showed better growth than the single treatment of NAA or Kinetin did. 9. Transplanted Exochorda serratifolia showed healthy growth with shaded environmental condition(42.1% light intensity), therefore they can be cultivated as a shade tolerant landscape plant. 10. It was considered that Exochorda serratifolia was applicable to group planting at shade places or under trees in parks, homes, etc..

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Strengthening Families: The Re-structuring of Family Services in Hong Kong

  • Leung, Joe C.B.
    • 한국사회복지학회:학술대회논문집
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    • 2002.10a
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    • pp.3-19
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    • 2002
  • The problems and needs of families in Hong Kong are becoming more complex. Traditional family structures and functions are rapidly eroding. Moreover, family problems are further exacerbated by a growing number of socio-economic issues including rising divorce rates and extra-marital affairs. continuous family reunion migration from Mainland China, emotional and financial cost of caring for the older people and the changing economy which has pushed more families into hardship. In effect, more and more families are becoming vulnerable to risk. Traditional family services in Hong Kong are varied in mode, operation and provision, often overlapping in service boundaries with other family-oriented programs. In many instances, family service centers are stretched far beyond their capacity. As a consequence, they become too reactive, remedial and casework dominated. The University of Hong Kong Consultant Team recommended that family service programs have to protect vulnerable families and strengthen family capacities to promote maximum independence. The direction of family services is summarized as: strengthening families; child-centered, family-focused and community-based. New integrative family service centers aim at attaining the principles of promoting accessibility to users with minimum physical, psychological and administrative barriers; early identification of needs and intervention before the further deterioration of problems; integration of services cutting across program boundaries, and partnership between service providers to achieve efficient and effective use of scarce resources. Under the new model, multi-skilled teams can respond more proactively to a wide range of social needs, rather than addressing needs in isolation. To demonstrate the effectiveness of the new model, the consultant team has been commissioned by the government to evaluate the performance of these two-year pilot projects. More importantly, a coherent and family-friendly social policy should be formulated to strengthen family capacity against family-related problems.

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An analysis on the Deconstructed Visage in Fashion Illustration - Based on the Deconstructed Visage of Francis Bacon's Painting - (패션 일러스트레이션에 나타난 얼굴해체 - 프란시스 베이컨 회화의 얼굴해체를 바탕으로 -)

  • Choi, Jung-Hwa;Choi, Yoo-Jin
    • Fashion & Textile Research Journal
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    • v.15 no.6
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    • pp.874-885
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    • 2013
  • This study analyzes the visage in fashion illustration based on the deconstructed visage of Francis Bacon's paintings as well as analyzes fashion illustration works since 2000. The deconstructed visages in Francis Bacon's paintings are classified as blurring, elimination, distortion and division. The expressive methods and meanings in fashion illustration (according to categorization) are as follow. Blurring shows an ambiguous visage organ by the sweeping of the brush, removal of a boundary among the visage, body and clothes, gradation of organic line like visage shapes, stretching of the a plat combined to visage and fragmentation of visage. It represents an uncertainty of the fashion theme and image interpretation, impossibility of figure by ambiguity, fantastic effect and the induction of the uncanny. Elimination shows the background color's painting of a photo-montage, overlap of a cutting of visage's part and background of a plat, elimination of the visage and the elimination of eyes, nose or lips. It represents a weakened identity, the reinforcement of anonymity, creation of a violent image, and uncanny unfamiliarity. Distortion shows a distorted visage by free drawing, and unconscious drawing line, fluid digital body, combination of an unconscious curve, and an eccentric combination of the accidental. It represents the relief of specialty about realistic existence, hypothetical immateriality and fantasy. Division shows overlapped visages with different angles, the weird combination of a plural visage and different species and a plural breakaway of direction, and the position of several organs. It represents motion by power's trace, non-territory of species, ambiguity and uncertainty and the uncanny.

A Study on the Soil Stress Distribution in Furrow Slice (역토내(壢土內)의 응력분포(應力分布)에 관(關)한 연구(硏究))

  • Lee, Ki Myung;Lee, Suk Gun;Kim, Tae Han
    • Journal of Biosystems Engineering
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    • v.7 no.2
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    • pp.1-7
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    • 1983
  • In order to identify the stress distribution on the furrow slice a small soil bin instrumented with soil stress meters was designed and constructed. From a series of experiments conducted in the soil bin the following results were obtained. 1) Neither the cutting conditions nor the soil conditions affected the direction of the principal stress. 2) The magnitude of the principal stress increased as the tillage depth increased. However, no effects due to lift angles were shown on the magnitude of the principal stresses. 3) The maximum principal stress increased with increase of the moisture and clay contents in the soil. 4) In the clay soil, the maximum principal stresses were distributed uniformly over the tillage depth. However, as the sand content increased, the maximum principal stresses decreased gradually on the top layer so that the distribution over the tillage depth became a trapezoidal shape.

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Development of Compressive Ultimate Strength Formulations for Ship Plating Stiffener with Cutout (선체 유공보강판의 압축최종강도에 관한 설계식 개발)

  • Ko Jae-Yong;Park Joo-Shin;Oh Dong-Kee
    • Proceedings of KOSOMES biannual meeting
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    • 2004.05b
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    • pp.121-125
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    • 2004
  • Recently, High Tensile Steel is adapt to thin plate on the steel structure and marine structure is used widely, It is possible for buckling happens great. Specially, Initial deflection of ship structure happens in place absence necessarily by heat processing of welding or cutting etc. This Initial Deflection is exerted negative impact when thin plate absence complicated nonlinear behaviour accompanied secondary budding. As a result, must idealize initial deflection that occurrence is possible to endow stability and accuracy in the hull structure or marine structure and reflect in early structure design considering secondary buckling. Longi direction of compressive load interacts and analyzed finite element series analysis that apply various kinds initial deflection shape measured actually on occasion that is arranged simply supported condition in this research. Applied ANSYS (elasto-plasticity large deformation finite element method) to be mediocrity finite element program for analysis method and analysis control used in Newton-Raphson method & Arc-length method.

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A Study on the Compressive Ultimate Strength of Ship Plating with Complicated Shape of the Initial Deflection (복잡한 형상의 초기처짐을 가진 선체판의 압축최종강도에 관한 연구)

  • 고재용;박주신;이계희;박성현
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2004.04a
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    • pp.83-88
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    • 2004
  • Recently, High Tensile Steel is adapt to thin plate on the steel structure and marine structure is used widely. It is possible for buckling happens great. Specially, Initial deflection of ship structure happens in place absence necessarily by heat processing of welding or cutting etc. This Initial Deflection is exerted negative impact when thin plate absence complicated nonlinear behaviour accompanied secondary buckling. As a result, must idealize initial deflection that occurrence is possible to endow stability and accuracy in the hull structure or marine structure and reflect in early structure design considering secondary buckling. Longi direction of compressive load interacts and analyzed finite element series analysis that apply various kinds initial deflection shape measured actually on occasion that is arranged simply supported condition in this research. Applied ANSYS (elasto-plasticity large deformation finite element method) to be mediocrity finite element program for analysis method and analysis control used in Newton-Raphson method & Arc-length method.

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Topology Optimization Design of Machine Tools Head Frame Structures for the Machining of Aircraft Parts (항공기부품가공용 공작기계 헤드프레임 구조의 위상최적화 설계)

  • Yun, Taewook;Lee, Seoksoon
    • Journal of Aerospace System Engineering
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    • v.12 no.4
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    • pp.18-25
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    • 2018
  • The head frame structure of a machine tool for aircraft parts, which requires machining precision and machining of difficult-to-cut materials is required to be light-weighted for precision high-speed machining and to minimize possible deformation by cutting force. To achieve high stiffness and for light-weight structure optimization design, a preliminary model was designed based on finite element analysis. The topology optimization design of light-weight, high stiffness, and low vibration frame structure were performed by minimizing compliance. As a result, the frame weight decreased by 17.3%, the maximum deflection was less than 0.007 mm, and the natural frequency increased by 30.6%. The static stiffness was increased in each axis direction and the dynamic stiffness exhibited contrary results according to the axis. Optimized structure with the high stiffness of low vibration in topology optimization design was confirmed.

An Experimental Study on the Behaviour of Tunnel Excavated in a Homogeneous Ground by Two-Stage Excavation (균질지반에서 2단계로 굴착되는 터널의 거동특성에 대한 실험적 연구)

  • 김동갑;박승준;이상덕
    • Tunnel and Underground Space
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    • v.14 no.5
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    • pp.345-352
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    • 2004
  • In a shotcrete support system, the cooperation of the ground and the shotcrete lining makes it possible to transfer the shear stress to the shotcrete lining, which is dedicated to form a stable structure. In this study, a homogeneous model ground with constant strength was produced by using gypsum and the tunnel was excavated with a top heading method under the definite initial stress. During the excavation, the stress in the ground around the tunnel and the deformation of shotcrete lining were measured, The tensile stress was generated in tangential direction in the ground near the tunnel and in the shotcrete lining due to tunnel excavation. This shows the unified behavior of the ground and shotcrete lining, which is the most typical characteristic of the shotcrete support. As a result, the rates of in-situ stress during the excavation at a top boundary line was 9% and at top arch heading 15%. It was 48% right after excavating the heading and 94% before cutting the bench.

A Study on the Cases of Fun Elements Designing and the Application to Furniture (Fun 요소의 디자인 사례와 가구 적용에 관한 연구)

  • Yoo, Do-Hyun;Yoon, Yeoh-Hang
    • Journal of the Korea Furniture Society
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    • v.20 no.2
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    • pp.105-114
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    • 2009
  • Recently, as living of people becomes economically liberal, people's interests are being directed to enjoying leisure and finding fun. The design area is not exceptional from this change and thus fun elements are working as important purchase factors when people are purchasing goods in addition to intrinsic uses of the goods. Along with the development of cutting-edge technologies, other manufacturing industries like electronics, automobiles etc are swiftly responding to this trend, but the furniture industry that has been perceived as a relatively low technical industry is not at all prepared for this trend. Here, this thesis is to suggest a direction for our furniture industry to go by proposing many potentials to apply fun elements to furniture through surveys of design cases addressing fun in other areas. The surveys made in this study are largely divided into the fun in the aspect of perception and the fun in the aspect of awareness. First, the fun in the aspect of perception of furniture can be experienced through the assembling of D. I. Y. furniture and this requires studies and efforts of developers in order to enable people to enjoy the processes of assembling as a sort of 'play' without feeling a burden in the processes of assembling. Second, the fun in the aspect of awareness of furniture can be created by boldly introducing new technologies and materials from other industrials and this includes adding other functions than the intrinsic use of furniture such as containing things.

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A Study on Wearable GPS Antenna Integrated into Garment (의복에 실장되는 웨어러블 GPS 안테나에 대한 연구)

  • Park, Dong-Kook
    • Journal of Navigation and Port Research
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    • v.38 no.6
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    • pp.623-627
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    • 2014
  • In recent years, wireless communication technologies in human body have received an increasing attention and the research on an antenna that can be worn also has been actively conducted. In this paper, an wearable antenna that can receive GPS signal frequency is proposed. The antenna was manufactured by using a copper polyester fabric with thickness of 0.08mm as a radiator and a ground plate, and a goatskin with thickness of 0.7mm as dielectric substrate. Cutting edges placed in diagonal direction of square patch in order to obtain a circular polarization characteristic, and the conductive cloth and leather was laminated by using a conductive epoxy. First, goatskin dielectric constant was obtained through the simulation and measurement of resonance frequency of the three square patch antennas with different size. On the basis of the results, an antenna operating in the GPS band was designed and the performance of the antenna was validated by making the experiment. The change of the characteristic of the antenna that is located on the shoulder parts of the clothing and wearing person were measured. And it was confirmed that the reception sensitivity has a similar level as compared to the commercially produced ceramic GPS antenna.