• Title/Summary/Keyword: Typical

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Application of Image Analysis to the Evaluation of Natural Soils (천연오염 평가에 대한 화상분석의 응용)

  • 이일심;차옥선
    • Journal of the Korean Society of Clothing and Textiles
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    • v.21 no.1
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    • pp.194-205
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    • 1997
  • The typical instrumental assessment of ununiform natural soils has been carried out by yellowing of the specimens instead of the surface reflectance or the calculated formula. However, the regular instrumental area of sample holder is necessary for the measure of yellowing. Therefore, this study attempted to apply image analysis which had full color image by scanning of one time without limitation of instrumental area. The test samples were analyzed pseudo and full color image. This paper evaluated soil with hue of yellowing and gradation of gray level with color image analysis. Then, it was studied propriety of image analysis with correlation of yellowing, hue and gray level. Ultimately, the proposed image analysis in this paper was advanced method against the typical instrumental assessment.

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A Study on A Mechanism Type Design of General Planetary Gear Reducers (유성기어 감속기의 기구형태 설계에 관한 연구)

  • Shin J.H.;Kwon S.M.;Hwang J.G.;Kwak H.S.;Ko W.S.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.06a
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    • pp.1728-1732
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    • 2005
  • Gear trains are used in many machinery for variable speed ratios. Typical shapes of gear trains are two categories: simple gear trains and planetary gear trains. Generally the methods of the design typical shapes are two way. One of the methods is trailblazing design and the other is selective design in available types. This paper presents the mechanism types when input rotating velocity and output rotating velocity are maintained for useful planetary gear reducers of twelve types. Also, this paper gives the applicable example about rotating velocity of the gear axis, carrier velocity and the organized gear specifications

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Erythermalgia (피부홍통증(皮膚紅痛症))

  • Kim, H.M.;Song, Y.J.;Lee, N.S.;Kim, H.J.
    • Journal of Chest Surgery
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    • v.9 no.1
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    • pp.50-54
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    • 1976
  • Erythermalgia has typical triad of burning pain, redness and localized elevation of body temperature at the involved extremities and according to the etiolgy it can be divided as primary (unknown) and secondary erythermalgia. One case of typical primary erythermalgia involving both lower extremities in 20 year old male patient was reported with dramatic symptomatic improvement for 4 months after bilateral lumbar sympathectomy. And there was another case of primary erythermalgia involving both upper and lower extremities in 12 year old girl, and all the symptoms and signs were disappeared about one week later with combined bilateral thoracic and lumbar sympathectomy. It is considered the first case of primary erythermalgia treated completely with sympathectomy in Korea.

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Development of System for Optimum Design, Safe Appraisal and Repair Works on Agricultural Structures (농업구조물의 최적설계안 선정, 안전진단 및 개보수를 위한 시스템 개발)

  • 김종옥;윤광식;고만기;김기동;최진용;김한중
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 1998.10a
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    • pp.99-106
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    • 1998
  • A study was conducted to develope a system for optimum design, safe appraisal and repair works on agricultural structures. Locations of structures were identified using GPS and imbedded into GIS data base with related information. A graphical program assisting ensile field investigation of typical agricultural structural problems such as fractures and cracks of members was developed. Typical rehabilitation methods were coded for data base development. Optimum design programs for several structures were developed and CAD program which automatically draw draft was also developed.

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Composition and Structural Characteristics of Polysaccharide from Hot Water Extraction of Auricularia auricula (흑목이 버섯 열수추출 다당의 성분 및 구조적 특성)

  • Kim, Hyeon-Min;Hur, Won;Lee, Shin-Young
    • KSBB Journal
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    • v.24 no.6
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    • pp.584-590
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    • 2009
  • A hot-water extract from fruit body of Auricularia auricula was purified by ethanol precipitation and subsequent dialysis. The polysaccharide showed a typical IR spectrum similar to $\beta$-glucan and was composed of glucose and mannose in a molar ratio of 16.8:83.2 indicating that it is a glucomannan. A glucomannan-like polysaccharide was also identified from Tremella fuciformis. Both of the polysaccahrides showed the presence of acetyl groups and presented colorimetric responses for $\beta$-1,4-glucomannan indicating the acetylated $\beta$-glucomannan similar to the typical polysaccharide found in Aloes.

Performance of Typical 3-D Signal Constellations in Rayleigh Fading Channel (레일리 페이딩 채널에서 대표적인 3차원 신호성상도의 성능)

  • Chen, Zhenxing;Choe, Chae-Cheol;Kang, Seog-Geun
    • Journal of Broadcast Engineering
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    • v.16 no.4
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    • pp.680-683
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    • 2011
  • In this paper, symbol error probability (SEP) of typical 3-dimensional (3-D) signal constellations in Rayleigh fading channel is derived. Simulation confirms that average SEP of the constellations is very accurate. Thus, the theoretical SEP derived can be exploited as a performance reference for future development of wireless communication systems with 3-D constellations.

House and Interior Design During the Georgian period in England (영국 죠지안 시대의 주택 실내 표현 특징에 관한 연구)

  • 김정근
    • Korean Institute of Interior Design Journal
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    • no.38
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    • pp.57-64
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    • 2003
  • The purpose of this study is to examine house and interior design during the Georgian Period in England. The results of this study were as follows: 1. Typical houses during the Georgian Period were generally two types that one was a single detached house in the country and the other was a terrace houses in the city. 2. Both the houses and their interior design during the Georgian Period were influenced by Classicism and Palladianism. The distinction of forms and the decorations used motifs originating from Greece and Rome. Gradually, It had been changed by the influence of Rococo from Europe and the archaeological excavation of Pompeii and Herculaneum. 3. The facade of house used simpe, plain and symmetrical forms. Entrance was usually in the center of the house around sash windows. Also, the Inside of house, division of walls, arrangement of furnitures and decorations of details were followed the symmetrical forms. Finally, it was found that the distinctions represent the typical style of Georgian in England.

Numerical Simulation of Effect of Urban Land-use Type and Anthropogenic Heat on Wind Field (지표면 변화와 인공열이 바람장에 미치는 영향에 관한 수치 시뮬레이션)

  • 홍정혜;김유근
    • Journal of Korean Society for Atmospheric Environment
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    • v.16 no.5
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    • pp.511-520
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    • 2000
  • The urban atmosphere is characterized by th difference in surface and atmospheric environment between urban and more natural area. To investigate th climatic effect of land use type and anthropogenic heat of urban on wind field, numerical simulations were carried out under typical summer synoptic condition. The wind model PNU_MCM(Pusan National University Mesoscale Circulation Model) is based on the three-dimensional Boussinesq equations, taking into account the hydrostatic assumption . Since lane-use differs over every subdivision on Pusan the surface energy budget model includes sub0grid parameterization scheme which can calculate the total heat flux over a grid surface composed of different surfaces. The simulated surface wind agrees well with the observed value, and average over 6 days which represent typical summer lan-sea breeze days, August 1998, i.e. negligible gradient winds and almost clear skies. Urbanization makes sea-breeze enhance at day and reduce land-breeze at night. The results show that contribution of land-use type is much larger than that of anthropogenic heat in Pusan.

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Typical Classification of Rural Area Considering Settlement Environment by Decision Tree Method (정주여건을 고려한 의사결정나무기법 활용 농촌지역 유형화)

  • Bae, Seung-Jong;Kim, Dae-Sik;Eun, Sang-Kyu
    • Journal of The Korean Society of Agricultural Engineers
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    • v.58 no.6
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    • pp.79-92
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    • 2016
  • The objective of this study is to classify the types of rural areas (138 $si{\cdot}gun$) considering settlement environment by Decision Tree Method (CHAID). The CHAID method was used for decision tree algorithm and the seven dependant variables and 5 explanatory variables were selected, respectively. By decision tree method, rural areas were finally classified into six groups through three separate processes. City area, lower area in aging rate and higher area in farmland area ratio was analyzed to be relatively rich rather than other area in the case of settlement environment index. In the future, this study will be able to utilize as a reference to the planning of rural development projects.

Negotiation Barriers and Labor Disputes (협상의 장애요인과 노사분쟁)

  • Kim, Taigi
    • Journal of Labour Economics
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    • v.27 no.3
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    • pp.53-73
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    • 2004
  • Korea has been suffering from increases in various disputes as well as militant behavior of resolving them. Industrial relations has become a typical case. However, research on the occurrence and resolution of a dispute has been rare. Especially, it has been difficult to find a study on barriers to dispute resolution. This paper investigates psychological barriers, information barriers and institutional barriers to reduce the efficiency of negotiation. It applies them to the typical cases of labor disputes and proposes implications to improve the way to resolve labor disputes.

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