• 한국결정성장학회지
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• 제17권3호
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• pp.108-112
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• 2007

광원에 따라 색상이 변화하는 cubic zirconia 단결정을 skull melting 법으로 성장하였다. Co와 Nd에 의해서 황색 영역의 강한 흡수가 일어나며, Fe에 의해 보라색 영역의 흡수가 일어남에 따라 광원이 형광등에서 백열등으로 변화할 때 청-녹색에서 적-자색으로 변화가 발생한다. 첨가물에 의해서 뿐만 아니라 yttria 함량과 열처리 조건 변화에 의해서도 결정의 색이 변화하였다.

• 제어로봇시스템학회논문지
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• 제17권4호
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• pp.346-352
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• 2011

This paper presents a system of road extraction for traffic images from a single camera. The road in the images is subject to large changes in appearance because of environmental effects. The proposed system is based on the integration of color correlograms and random forest. The color correlogram depicts the color properties of an image properly. Using the random forest, road extraction is formulated as a learning paradigm. The combined effects of color correlograms and random forest create a robust system capable of extracting the road in very changeable situations.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 학술대회 논문집 정보 및 제어부문
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• pp.522-523
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• 2008

This paper presents an LED lighting which can control its color temperature. It consists of a power factor correction (PFC) circuit, an LED driver, and an LED color control circuit. The proposed system can adjusts the light intensity to obtain a desired color with independently changeable illuminance. The power factor of the PFC circuit is 98%. The LED driver has 90% efficiency at 300mA output current. The output power of the experimented LED lighting is 150 W. The achieved color temperature range was from 3000K to 7500K, and the illumination one was from 500 lux to 1500 lux.

• 조명전기설비학회논문지
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• 제24권12호
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• pp.38-46
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• 2010

For the development of 100[W] stage lighting, quantitative and uniform color mixing that applied through color adopted Simple-Inverse matching so that color mixing can be possible along Black Body Locus. R,G,B(Red, Green, Blue) LED(Light Emitting Diode) arrangement through LED package character analysis, LED module, and the characteristic of device were considered for uniform color mixing. A distance changeable optical device was built to assure high uniformity and high diffusion of not only the middle of diffusion side but also the border side. Also, we developed the control power circuit that can expand up to 6 channels which are possible for quantitative color mixing, and the high uniformity and high quantified border light for color mixing control and the verification of color mixing characteristics by composing GUI(Graphical user interface) including color mixing simulator. By presenting the experimental results of light color control, we proved the usefulness of our developed border light and the proposed color mixing method.

• 한국의류학회지
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• 제43권3호
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• pp.327-348
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• 2019

Among the many methods to make sustainable garments, convertible garments have the potential to change style and function that allow consumers to keep and use garments longer with the possibility of enhancing sustainability. This research analyzes consumer preferences in changeable design options for convertible dresses and the consumers' influence on environmentally responsible apparel consumption (ERC) behaviors on their preferences regarding changeable design options of dresses, which are popular items. An online survey collected data from a convenient sample of 321 female college students from four universities in the United States. Data were analyzed using IBM SPSS through descriptive analysis, cluster analysis, and independent samples t-test. There were significant differences between high and low ERC groups in design preferences that considered important aspects of purchasing, using convertible dresses, and purchase intentions. Detailed differences among sub-groups were analyzed. Designers are encouraged to make tying/folding/wrapping dresses with changes of size/fit, dress length, or color/pattern. The results are beneficial for apparel designers when developing convertible dresses with the guidance of consumers' design preferences and differences according to ERC levels.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2008년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.120-122
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• 2008

This paper presents a color control algorithm for LED lights with independently changable illuminance. The proposed algorithm adjusts the light intensity to obtain a desired color with alterable illuminance To verify the validity of the proposed algorithm, it was applied to control of a RGBW LED module. The achieved color temperature range of the module was from 3000K to 7500K, and the illumination one was from 500 lux to 1500 lux.

• 패션비즈니스
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• 제15권4호
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• pp.182-189
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• 2011

Dyeing properties of cow leather was investigated with Tumeric powder. The effects of dyeing conditions, mordanting conditions, color change, and color fastnesses were studied. The results were as follows. The dye uptake increased as dye concentration, dyeing temperature, and bath ratio increased. In the effect of dyeing time, the highest dye uptakes showed at 20 minutes and decreased after that point. Pre mordanting was more effective than the post mordanting, and the dye uptakes improved all mordanted fabrics. The highest K/S values showed in pre-Al sample, and the lowest K/S values showed in post-Cu one. The values of Hunter on the samples were more changeable $L^*$ and $b^*$ than $a^*$, and all samples showed Yellow color in Munsell value. But the mordanting methods and mordanting agents were not significant in the color changes. The light fastness of dyed samples showed 1 grade, the dry cleaning and abrasion fastnesses did not improved except post-Fe wet sample.

• 복식
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• 제54권6호
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• pp.25-40
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• 2004

The rainbow has been considered as a perfect representative of color harmony in nature. In this study rainbow's colors include seven spectral colors and changeable colors according to observational angle. This study performed a bibliographical inquiry into rainbow colors and the survey research for classification of rainbow color images in fashion design. First, a bibliographical inquiry includes the definition of rainbow colors, physical formation principles of the rainbow, and its aesthetical attributes and symbolism. Second, this survey classifies rainbow color images in fashion design. The results of this study are as follows: 1. The rainbow was the religious and symbolic object before 17th century, and after that period, the rainbow became an aesthetical object. The main symbolic meanings are similar in eastern and western culture: temporary bridge between two world, divine nature, hope/beauty/richness, war/ death/flood/drought. 2. This survey shows that 6 main factors of rainbow color images in fashion design are 'vigorous', 'colorful'. 'fairy', 'fresh', 'mysterious', 'brilliant'. Rainbow color image in fashion design shows past and futuristic image at the same time. The purpose of this study is to systematized the images theoretical bases which are applied to color expression and of rainbow colors and to find out the development about rainbow theme by designers.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 1999년도 학술대회논문집-국제 전기방전 및 플라즈마 심포지엄 Proceedings of 1999 KIIEE Annual Conference-International Symposium of Electrical Discharge and Plasma
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• pp.213-216
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• 1999

빛의 3원색 Red, Green, Blue를 조합하여 분광조성을 달리하면 원하는 광색을 낼 수 있다. 이를 하나의 광원 형태로 개발하면 응용의 폭이 넓다는 장점을 지닌다. 현재 개발된 LED와 마이크로프로세서 기술은 이와 같은 가변색 광원을 만들기에 가장 적당한 것들이라고 판단하여 LED를 이용한 가변색 광원을 연구, 시제품을 제작하였다. 그리고, 개발된 가변색 광원의 응용분야와 가능성, 거기에서 파생될 수 있는 문제점을 분석하여 제시하였다.

• 감성과학
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• 제12권2호
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• pp.205-214
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• 2009

본 연구에서는 감성실내 공간 색채에 대한 연구로 심리설문반응과 생리신호 분석을 통하여 감성색채데이터 분석에 목적을 두었다. 생리신호반응 분석 중 뇌파측정과 SD 스케일법을 이용한 설문조사를 실시하여, 정성적인 감성어휘와 정량적인 감성생리신호 결과의 상호관계를 분석하였다. 본 연구의 색채에 대한 반응 실험은 30명의 피험자를 대상으로 하였으며, TeleScan Version 2의 분석틀과 SPSS 10.0 프로그램을 이용하여 측정 값을 분석하였다. 감성형용사 어휘 설문조사는 21쌍의 감성어휘로 SD(Semantic Differential) 스케일을 사용하여 측정하여 요인 분석과 분산분석을 실시하여 통계 처리하였다. 분석 결과 모든 요인에서 시각적 자극에 따른 반응 값에 유의한 차이가 발생하였으며(p<0.001), 자극 간에 요인 점수의 차이가 발생하는지 구체적으로 살펴보기 위해 사후분석(Duncan)을 실시하여 평균비교를 통한 색채와 뇌파의 관계를 분석하였다. 연구 결과 각 색채 자극은 관련 감성어휘를 갖고, 뇌파 검사에 의한 생리반응 특성을 갖는다. 이러한 연구는 감성에 따라 반응하는 감성 지능형 환경디자인에 중요한 데이터로 활용될 수 있을 뿐만 아니라, 현대인의 건강에 대한 관심 증가에 따라 건강 증진 환경디자인에 도움을 줄 수 있는 색채 배색을 제안할 수 있다.