• Title/Summary/Keyword: Y-blending method

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Antibiotic Activity of PVA Blending Films Using Chitosan (키토산을 이용한 PVA 블랜드 필름의 항균특성)

  • Kim, Kyung-Min;Kong, Seung-Dae;Yoon, Cheol-Hun;Kim, Yong-Yeul;Lee, Han-Seob
    • Journal of the Korean Applied Science and Technology
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    • v.17 no.3
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    • pp.198-202
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    • 2000
  • PVA blend films were prepared by solution blending method for the purpose of useful antibiotic polymers. Characteristics properties of blending films such as elongation and tensile strength were determined. Tensile strength and elongation were rapidly reduced as increasing the blending ratio of natural polymer. Blend films were found that phase separation was occured as more than 25wt% increasing the blend ratio of chitosan. Also, The antibiotics of blend films were examined against gram(+) and gram(-) by disk susceptibility test. As a result, kind of blending films to show the highest antibiotics was chitosan 20wt% and the selectivity of mold strain was observed.

Electro-optical Characteristics of the TN Cell Photo-aligned on the Blending Photopolymer Surfaces (복합 광폴리머 표면을 이용한 광배향 TN 셀의 전기 광학 특성)

  • 황정연;서대식
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.14 no.7
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    • pp.600-605
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    • 2001
  • The electro-optical (EO) performances for the twisted-nematic (TN)-liquid crystal display (LCD) photo-aligned with polarized UV exposure on various blending photopolymer surfaces were investigated. Excellent LC alignment and voltage-transmittance (V-T) characteristics for TN-LCD photo-aligned with polarized UV exposure of normal incidence on the blending photopolymer (polyimide (PI) +PM4Ch(poly(4-methacryloyloxy chalcone))) surface containing chalcone group can be achieved. The EO performances for the TN-LCD photo-aligned on the blending photopolymer can be improved due to the photosensitivity by long side chain of the photopolymer.

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Effects of Extraction Methods on Antioxidative Properties of Carrot, Apples, and Blueberry Juices (착즙 방법에 따른 당근·사과·블루베리 주스의 항산화 영양소 비교)

  • Kim, Eun-mi
    • Culinary science and hospitality research
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    • v.23 no.3
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    • pp.166-173
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    • 2017
  • This study was performed to compare the vitamin A, E, ${\beta}-carotene$, polyphenol content, and DPPH radical scavenging activity of carrot, apple, and blueberry juices as affected by extraction methods using slow juicer (HJ), no vacuum blending (NVJ) and vacuum blending (VJ). Juice yields of carrot, apple, and blueberry were 100% in NVJ and VJ groups. Vitamin A content of all juices was the highest in VJ group. Vitamin E content in carrot and apple juices increased most in the HJ group, followed by the NVJ and VJ group; Vitamin E content in blueberry juice was higher in the NVJ group than VJ or HJ group. ${\beta}-carotene$ and polyphenol content in all juices were highest in the VJ group. In addition, the differences between vacuum blending and non-vacuum blending were only shown on apple and blueberry juices. Polyphenol content in carrot and blueberry juices increased most in the HJ group, followed by the NVJ, and VJ groups, and in apple juice, polyphenol content was higher in the VJ group than the HJ or NVJ group. DPPH radical scavenging activity in the VJ group was significantly higher than the NVJ group. The results of this study showed the vacuum blending method had outstanding antioxidative nutrients compared to other juicing methods.

A Predictional Study on the Slagging and Fluid Behavior of Coal Ash under the Gasifier Condition. (가스화기에서 석탄회분의 Slagging 성향 및 용융거동 예측에 관한 연구)

  • 배한진;김형택;손응권;최상일;이시훈;박주식;윤용승;정석우
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1996.10b
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    • pp.113-122
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    • 1996
  • 본 연구는 석탄가스화복합발전(IGCC)의 핵심부분이라 할 수 있는 슬래깅 형태의 분류층 가스화기에 원활한 Slagging을 유지하기 위해 Flux addition method와 Coal blending method를 적용하였다. 대상탄으로는 가스화에 적합하다고 알려진 알라스카탄, 대동탄과 비교탄으로 가스화에 부적합하다고 알려진 1종류의 유연탄을 대상으로 기본분석 및 화학적 조성분석, 용융온도를 측정하여 봄으로써 대상탄들의 슬래깅성향을 평가하였다. 대동탄과 알라스카탄에 대해서는 Flux addition method를 적용하고, 비교탄에 대해서는 Coal blending Method를 적용한 후, 140$0^{\circ}C$로 운전되는 가스화기의 효율을 최대화할 수 있는 Flux 첨가비와 blending ratio를 산정하였다.

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Control of Pretilt Angle using a in-situ Photoalignment Method on Photo-Crosslinkable Polymer Surface (광중합 가능한 폴리머 표면에 in-situ 광배향법을 이용한 프리틸트각 제어)

  • Jung, Eun-A;Hwang, Jeoung-Yeon;Seo, Dae-Shik;Kim, Jae-Hyung;Hahn, Eun-Joo
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.11b
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    • pp.350-353
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    • 2001
  • Aligning capabilities for nematic liquid crystal (NLC) using a in-situ photodimerization method on various photo-crosslinkable polyimide (PI) based polymer and blending photopolymer surfaces were stuided. High pretilt angle of the NLC can be measured by obliquely polarized UV exposure on a photo-crosslinkable polyirnide based polymer surface containing biphenyl (BP), decyl (de), and cholesteryl (chol) group, respectively, However, the low pretilt angle of the NLC was measured by obliquely polarized UV exposure on the blending photopolymer (PI and cinnamate materials) surfaces. Consequently, the pretilt angle of the NLC generated on the photo-crosslinkable polyimide based polymer surfaces using the in-situ photodimerization method was higher than that of the blending photopolymers.

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Control of Pretilt Angle using a in-situ Photoalignment Method on Photo-crosslinkable Polymer Surface (광중합 가능한 폴리머 표면에 in-situ 광배향법을 이용한 프리틸트각 제어)

  • 정은아;황정연;서대식;김재형;한은주
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2001.11a
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    • pp.350-353
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    • 2001
  • Aligning capabilities for nematic liquid crystal (NLC) using a in-situ photodimerization method on various Photo-crosslinkable polyimide (PI) based Polymer and blending photopolymer surfaces were studied. High pretilt angle of the NLC can be measured by obliquely polarized UV exposure on a photo-crosslinkable polyimide based polymer surface containing biphenyl (BP), decal (de), and cholesterol (chol) group, respectively. However, the low pretilt angle of the NLC was measured by obliquely polarized UV exposure on the blending photopolymer (PI and cinnamate materials) surfaces. Consequently, the pretilt angle of the NLC generated on the photo-crosslinkable polyimide based polymer surfaces using the in-situ photodimerization method was higher than that of the blending photopolymers.

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Liquid Crystal Aligning Capabilities Using the in-situ Photo-alignment Method on Photo-crosslinkable Polymer Surface (광중합 가능한 폴리머 표면에 in-situ 광배향법을 이용한 액정배향특성)

  • 황정연;정은아;서대식;정재형;한은주
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.14 no.11
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    • pp.917-921
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    • 2001
  • Aligning capabilities for nematic liquid crystal (NLC) using a in-situ photodimerization method on various Photo-crosslinkable Polyimide (Pl) based polymer and blending photopolymer surfaces were investigated. High pretilt angle of the NLC can be measured by obliquely polarized UV exposure on a photo-crosslinkable polyimide based polymer surface containing biphenyl (BP), decyl (de), and cholesteryl (chol) group, respectively. However, the low pretilt angle of the NLC was measured by obliquely polarized UV exposure on the blending photopolymer (Pl and cinnamate materials) surfaces. Consequently, the pretilt angle of the NLC generated on the photo-crosslinkable polyimide based polymer surfaces using the in-situ photodimerization method was higher than that of the blending photopolymers.

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Skinny Smudge Blending Method Using Arbitrary-shaped Master (임의 형상 마스터를 이용한 스키니 스머지 블렌딩 방법)

  • Kwak, Noyoon
    • Journal of Digital Convergence
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    • v.10 no.9
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    • pp.333-338
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    • 2012
  • This paper is related to a skinny smudge blending method using the arbitrary-shaped master adhered closely to the contour shape. The smudge tool is the popular graphic tool embedded in Adobe Photoshop CS6. The smudge tool is used to smear paint on your canvas. The effect is much like finger painting. We can use the smudge tool by selecting its icon on the toolbox of Adobe Photoshop CS6 and dragging in the direction you want to smudge while holding the mouse button down on the image. As the smudge tool blends all the pixels within a radius of the master to generate the result image, its disadvantages are to smudge even the pixels in the undesired region. In this paper to reduce the disadvantage, the skinny smudge blending method using arbitrary-shaped master is proposed. The proposed blending method has the advantage of applying the smudge effect to the desired regions regardless of the background as the arbitrary-shaped master adhered closely to the contour shape is extracted by color image segmentation.

Inlet Surface Blending using NURBS Skinning (NURBS Skinning을 이용한 Inlet Surface 합성)

  • Choi, Gun-Il
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2002.10a
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    • pp.181-185
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    • 2002
  • The modeling of realistic water-jet geometry is needed in order to facilitate the design modifications. The present paper proposes a method of generating inlet geometry. Inlet duct was represented by NURBS method which utilized the skinning and local cubic interpolation scheme. Three test examples are presented demonstrating the effectiveness of the methods of skinning and local cubic interpolation. Computational examples associated with practical configurations have shown the usefulness of the present method.

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Evaluation of BR Blending Methods for ESBR/silica Wet Masterbatch Compounds

  • Kim, Woong;Ahn, Byungkyu;Mun, Hyunsung;Yu, Eunho;Hwang, Kiwon;Kim, Wonho
    • Elastomers and Composites
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    • v.52 no.4
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    • pp.242-248
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    • 2017
  • Wet masterbatch (WMB) technology is studied to develop high-content and highly disperse silica-filled compounds. This technology refers to the solidification of surface-modified silica with a rubber solution or latex. Until now, researchs based on styrene butadiene rubber (SBR)/silica WMB has been mainly performed. However, the blending of SBR/silica WMB and BR is not known and is currently under research and development. Therefore, in this study, the BR blending method suitable for emulsion (ESBR)/silica WMB is investigated by measuring their cure characteristics and the mechanical and dynamic viscoelastic properties. As a result, it was confirmed that the blending of ESBR/silica WMB and BR/silica dry masterbatch is most appropriate. However, it showed a disadvantage compared with the conventional mixing method, which was due to the surfactant remained and the sulfuric acid used as the coagulant.