• Title/Summary/Keyword: Color mixing

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Manufacturing of Color Hanji Using Bast fibers Stained Dyed by Two Reactive Dyes (이종 염색 닥섬유를 이용한 색한지 제조)

  • 윤승락;김효주
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.34 no.4
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    • pp.44-50
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    • 2002
  • This research was performed to investigate the physical properties and color appearance of Hanji manufactured using bast fibers dyed separately by two reactive dyes with different colors. The breaking length of color Ha was above 7 km. The fastness was five grade; the use of reactive dyes made the color of the Hanji not to be faded away. The Hanji manufactured by mixing uniformly two types of bast fibers separately dyed showed the mixed color of two different colors. However, the shives showed their original colors, resulted in irregular color patterns all over the sheets. The color of color Hanji with different colors in the front and back side of sheets showed color difference between front and back side of the sheets. Accordingly, the color of the sheet has a reflection from the backside, resulted in Pink. The colors of the Hanji appeared in this study could not be found from the Hanji manufactured by traditional methods.

A Study on the Development of Color Pavement (칼라포장(鋪裝) 개발(開發)에 관한 연구(研究))

  • Kim, Ju Won;Kim, Dae Woong
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.2 no.2
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    • pp.11-18
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    • 1982
  • The binder for hot mix type colored pavement must have the same physical qualities as the straight asphalt cement, but its color must not be dark-brown. We developed a kind of synthetic resin binder with light yellow color and confirmed its possibility as a binder for colored pavement through the several comparison tests between the straight asphalt cement concrete mixture and the mixture of binder and aggregate for colored pavement. For the pigment, it has been assured through tests that home products have the possiblities to be used. The binder has come to the stage of practical use through the trial mixing by asphalt mixing plant and the trial field placing. The mixing operation and the paving method of colored mixture are same as normal asphalt concrete mixture, but the quantity of pigment replaces that of mineral filler. The required content of pigment is decided by the trial mixing with other materials to be used.

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Development of a Three-Dimensional Barrier Embedded Kenics Micromixer by Means of a Micro-Stereolithography Technology (마이크로 광 조형기술을 이용한 3차원의 배리어가 포함된 케닉스 마이크로 믹서의 개발)

  • Lee In Hwan;Kwon Tai Hun;Cho Dong-Woo;Kim Dong Sung
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.29 no.6 s.237
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    • pp.904-912
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    • 2005
  • The flow in a microchannel is usually characterized as a low Reynolds number (Re) so that good mixing is quite difficult to be achieved. In this regard, we developed a novel chaotic micromixer, named Barrier Embedded Kenics Micromixer (BEKM). In the BEKM, the higher level of chaotic mixing can be achieved by combining two general chaotic mixing mechanisms: (i) splitting/reorientation by helical elements inside the microchannel and (ii) stretching/folding via periodically located barriers on the channel wall. The fully three-dimensional geometry of BEKM was realized by a micro-stereolithography technology, in this study, along with a Kenics micromixer and a circular T-pipe. Mixing performances of three micromixers were experimentally characterized in terms of an average mixing color intensity of phenolphthalein. Experimental results show that BEKM has better mixing performance than other two micromixers. Chaotic mixing mechanism, proposed in this study, could be integrated as a mixing component with Micro-Total-Analysis-System, Lab-on-a-chip and so on.

Recognition of Color Harmony for Sensitivity Recognition (감성인식을 위한 색채 조화 인식)

  • Baek, Jeong-Uk;Shin, Seong-Yoon;Rhee, Yang-Won
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2009.10a
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    • pp.173-174
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    • 2009
  • Color harmony will look good formative elements of the basic lines, shapes and colors. In this paper, we present the implementation of Johannes Itten's color balance. Yellow, red, blue, on the basis of the first color mixing between the index and second color is placed. 12 color balance made by placing a third color between the first color and second color. we recognize this 12 color balance. Edge is detected using the Canny edge operator and labeling and clustering was expressed through the colors.

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The physical properties evaluation and analysis about color revelation of the black-color mortar which applies the Granulated Blast Furnace Slag (고로(高爐)슬래그 미분말(微粉末)을 활용(活用)한 블랙-컬러모르타르 특성(特性) 및 색상발현(色相發現)에 관한 연구(硏究))

  • Kim, Seol-Hwa;Jang, Hong-Seok;So, Seung-Young
    • Resources Recycling
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    • v.19 no.6
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    • pp.86-92
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    • 2010
  • In the many kind of construct-material, the concrete which has the high-strength and a durability is sufficient to use with structure-material. but the color of concrete is very monotony, so generally concrete isn't used the out surface. although color concrete is a method of expressing surface, the combination of pigment and cement cause many physical problem such as efflorescence phenomenon, strength degradation and so on. In this study, It attempt to develop the black mortar using the industrial granulated blast furnace slag and to evaluate basic physical properties compare with general color concrete to solve the color concrete problem. The result of experiment showed that the flow dropped mixing of pigment. but flow increased in proportion to the mixing rate in occasion of mortar that mix granulated blast furnace sla and black mortar which was made granulated blast furnace slag has more visible black color than any mortar.

Visual Object Tracking Fusing CNN and Color Histogram based Tracker and Depth Estimation for Automatic Immersive Audio Mixing

  • Park, Sung-Jun;Islam, Md. Mahbubul;Baek, Joong-Hwan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.14 no.3
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    • pp.1121-1141
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    • 2020
  • We propose a robust visual object tracking algorithm fusing a convolutional neural network tracker trained offline from a large number of video repositories and a color histogram based tracker to track objects for mixing immersive audio. Our algorithm addresses the problem of occlusion and large movements of the CNN based GOTURN generic object tracker. The key idea is the offline training of a binary classifier with the color histogram similarity values estimated via both trackers used in this method to opt appropriate tracker for target tracking and update both trackers with the predicted bounding box position of the target to continue tracking. Furthermore, a histogram similarity constraint is applied before updating the trackers to maximize the tracking accuracy. Finally, we compute the depth(z) of the target object by one of the prominent unsupervised monocular depth estimation algorithms to ensure the necessary 3D position of the tracked object to mix the immersive audio into that object. Our proposed algorithm demonstrates about 2% improved accuracy over the outperforming GOTURN algorithm in the existing VOT2014 tracking benchmark. Additionally, our tracker also works well to track multiple objects utilizing the concept of single object tracker but no demonstrations on any MOT benchmark.

Preparing a Body Temperature Checking Material Using Polydiacetylene (Polydiacetylene을 이용한 체온 측정 물질의 제조)

  • Kim, Huiseon;Heo, Eunjin;Shin, Min Jae
    • Applied Chemistry for Engineering
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    • v.32 no.2
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    • pp.219-223
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    • 2021
  • Considering the current COVID 19 pandemic, herein, we developed a material that can be used to fabricate a device for checking the body temperature of a person who has been exposed to influenza or corona virus. This material was formed by mixing pluronic F127 (F127) with a polydiacetylene (PDA) vesicle, which was formed with 10,12-pentacosadiynoic acid. The color of the system started to change from blue to light purple at 37 ℃, finally turning reddish at 40 ℃. Thus, the developed material can be used to detect changes in body temperature, and thus, detect signs of fever. The mixing ratio of the PDA vesicle and F127 was an important factor for controlling the temperature at which the color change started. The results showed that the color change accompanied by the separation of the PDA vesicle with F127. We believe that this phenomenon plays an important role in reducing the conjugation length in the double and triple bond of PDA.

Effect of Glue and Alum Mixing Ratio on the Color Variation of Traditional Sizing Hanji (아교포수 방법이 전통한지의 색상 변화에 미치는 영향)

  • Lee, Yu-Ju;Choi, Tae-Ho
    • Journal of Conservation Science
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    • v.35 no.2
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    • pp.153-158
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    • 2019
  • The traditional sizing treatment for the Hanji is performed to give the following functions. Those are to stabilize the paint of the painting, to prevent the paint of painting and moisture from smearing into the painting itself, to prevent the paint of the painting and moisture from passing to the lining paper, and to make the colors of painting match the surrounding.This study analyzed a result of the effect of Hanji sizing characteristic according to glue and alum mixing ratio and applying times, affects to pigments of painting and fastness of Hanji using accelerated aging test. As a result of color measurement of sizing treated Hanji, the concentration of glue and the number of application increased, the brightness and the $L^*$ value decreased but the yellowness index increased.

Optimization of Recipe for Black Sesame Tuile Containing Retrograded Rice Flour using Response Surface Methodology (반응표면 분석법을 이용한 노화쌀가루첨가 흑임자 튀일 레시피의 최적화)

  • Kim, Sun-Hee;Cho, Min-Ju;Chang, Hye-Ja;Kim, Woo-Kyung;Park, Hye-Young
    • Journal of the East Asian Society of Dietary Life
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    • v.22 no.2
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    • pp.255-263
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    • 2012
  • Tuile containing retrograded rice and black sesame was developed by optimization of the mixing rate of retrograded rice and egg white using response surface methodology. Nine samples of design points were obtained according to central composite design, and the optimal mixing rate of retrograded rice flour and egg white as independent variables was calculated with the sensory score, color, and texture as response variables. Nine samples of the experimental group and no added retrograded rice flour Tuile were also compared in terms of sensory properties, color and texture. According to the results, the optimal mixing rate of black sesame Tuile was 8.6 g of retrograded rice and 33.5 g of egg white. Regression analysis of the response showed that retrograded rice flour and egg white had effect on the color and texture of black sesame Tuile, with egg white more influential rather than retrograded rice. In a comparison of quality between retrograded rice flour added Tuile and no retrograded rice flour Tuile, lightness ($p$<0.05), hardness ($p$<0.001) and fracturability ($p$<0.001) of retrograded rice flour added Tuile was better than those of the other sample, and sensory quality in terms of color ($p$<0.01), taste ($p$<0.001), texture ($p$<0.01) were more excellent as well.

Application of Deep Black Color on Polyester Fabrics by Color Matching (컬러 매칭에 의한 폴리에스테르 직물의 심색효과)

  • Choi, Youn-I;Bae, Kie-Seo;Kim, Yong-Duck;Park, Eun-Hee;Hong, Young-Ki
    • Textile Coloration and Finishing
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    • v.22 no.1
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    • pp.28-36
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    • 2010
  • The deep black coloration of polyester fabrics was obtained by the physical properties of color and color mixing system. In this experiment, we have measured the absorbance and the reflectance of various disperse dyes for accomplishing the lowest lightness value and uniform reflectance, and new matching algorithm and computer color matching was made. The matching used both isomeric and metameric matching. The color matching of deep black color represented low lightness. Though actual reflectance of dyed polyester fabrics using these matching results was as high as theoretical one, low lightness value($L^*$) and uniform appearance were achieved.