• 제목/요약/키워드: S/W Process

검색결과 2,554건 처리시간 0.038초

인공씨감자 생육상태 모니터링을 위한 화상처리 알고리즘 개발에 관한 연구 (A Study of Vision Algorithm Development for Growth Monitoring of Potato Microtubers)

  • 최재완;정광조;임선종;최성락;정혁;남호원
    • Journal of Biosystems Engineering
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    • 제23권4호
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    • pp.373-380
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    • 1998
  • The contribution of this paper is to provide the methods for the production automation of potato microtuber using the vision process in growth monitoring. The first method deals with computation for the growth density in the primary growth process. The second method addresses cognition process to identify the number and the volume of potato microtuber in secondary growth process. The third is to decide whether potato microtubers are infected by a virus or bacteria in growth process. The computation for the growth density in the primary growth process uses the method of Labeling. The second and third methods use template matching based on color patterns. With the developed method using vision process, this experiment is capable of discriminating weekly growth-rate in primary growth process, 85% cognition rate in secondary process and identifying whether there are infections. Therefore, we conclude that our experimental results are capable of growth monitoring for mass production of potato microtubers.

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Spin-transfer Torque Switching in nano-sized MTJ

  • Oh, S.C.;Lee, J.E.;Nam, K.T.;Jeong, J.H.;Yeo, I.S.;Kim, S.T.;Han, W.S.
    • 한국자기학회:학술대회 개요집
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    • 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
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    • pp.61.2-61.2
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    • 2007
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Dyeability and Colorfastness of Knitted Fabrics with Natural Dye PinuxTM (Part II) -Improvement of Colorfastness Using Cationizing Agent and Smectite-

  • Jung, Jong Sun;Song, Kyung Hun
    • 한국의류학회지
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    • 제36권12호
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    • pp.1310-1317
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    • 2012
  • This study examines the possibilities to improve natural dyestuff's (Pinux$^{TM}$) dyeability and colorfastness for C/R (Cotton/Rayon (40/60)) and W/T (Wool/Tencel (10/90)) knitted fabrics in cationizing and smectiting for pre-treatment, simultaneous-treatment and post-treatment process sequences; as well as various other treatment methods. The sample dyeability showed the strongest K/S value in the order of smectite (S) < cationization + smectite (C+S) < cationization (C); however, the K/S value showed a low level in the simultaneoustreatment method of smectite. Colorfastness to washing improved in the order of C < C+S < S, and after the smectite post-treatment process, C/R improved from Grade 1 to Grade 4 and W/T improved from Grade 1-2 to Grade 4. Colorfastness to perspiration generally improved in the same order as the colorfastness to washing and after the smectite post-treatment process C/R, W/T sample's acidic and alkaline colorfastness to perspiration improved greatly. As for the colorfastness to rubbing, the addition of smectite in the simultaneous-treatment and post-treatment processes resulted in improved wet-colorfastness; however, smectite showed less effect on the colorfastness to light compared to other colorfastness ratings.

건물 외벽 패널용 경량기포콘크리트(AAC)의 CaO/$SiO_2$ 혼합비에 따른 강도 특성 평가 (Strength Characteristics according to the mixed CaO/$SiO_2$ Ratio to Autoclaved Aerated Concrete(AAC) used on the Exterior Panel in Buildings)

  • 김영호
    • 한국디지털건축인테리어학회논문집
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    • 제11권3호
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    • pp.35-42
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    • 2011
  • The exterior system of buildings, which is the typical curtain wall, has been made with glass and metal. Theses materials, however, have weaknesses such as inadequate insulating quality, short durability, combustibility and toxic substance. On the other hand, Autoclaved Aerated Concrete(AAC) or Autoclaved Lightweight Concrete(ALC) possess the great energy efficiency and the superb insulating quality as substitute of existing exterior system materials. In this research, strength characteristics and bubble dispersion of hydrothermal synthesis process of AAC based on CaO/$SiO_2$(C/S) ratio are analyzed. C/S ratio is determinated and bubble distribution and compressive strength are studied through the test of varied water-to-solid mineral ratio(W/S). In hydrothermal synthesis program, final C/S ratio is determined as 0.7 consider of the manufacturing process and hydrothermal synthesis is done at $180^{\circ}C$ for 7 hours. The analysis shows slurry has about 2,300cP viscosity and 0.56 specific gravity therefore it is expected AAC has the appropriate facility in the manufacturing process and Hydrates of AAC's Expansion.

ON A MARTINGALE PROBLEM AND A RELAXED CONTROL PROBLEM W.R.T. SDE

  • Cho, Nhan-Sook
    • 대한수학회지
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    • 제33권4호
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    • pp.777-791
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    • 1996
  • Let $S(R^d)$ be the Schwartz space of infinitely differentiable functions on $R^d$ which vanish at $\infty$ and $S'(R^d)$ be its dual space. The theory of stochastic differential equations(SDEs) governing processes that takes values in the dual of countably Hilbertian nuclear space such as $S'(R^d)$ studied by many authors(e.g [M],[KM]). Let M be a martingale measure defined by Walsh[W], then M can be considered as a $S'(R^d)$-valued process in a certain condition i.e. M has a version of $S'(R^d)$-valued martingale process. (See [W] for detailed discussion)

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