• Title/Summary/Keyword: warm white

Search Result 75, Processing Time 0.032 seconds

A Survey on Color Planning of University student's Room (대학생들의 침실공간 색채계획을 위한 기초조사 연구)

  • 이미혜;윤재웅;안옥희
    • Journal of the Korean housing association
    • /
    • v.14 no.6
    • /
    • pp.95-104
    • /
    • 2003
  • The purpose of this study was to find out the actual condition of University student's use of colors and its favored colors in their rooms. This is to proffer basic data for the color planning of University student's rooms in the future. Questionnaires research method was conducted and 343 sample were selected. The analysis used spss program. The result was as follows; 1) At present, Y or Light tone of YR are mostly used for the floors of University student's rooms, white or Very pale tone of Y were used for walls and ceilings, YR or various tones were used for opening parts. 2) The degree of satisfaction of the color environment was 2.87 in average - ″a little dissatisfied″, more than half of the samples needed to change the color environment. 3) The favored color image of the students was regarded as ″warm, neat, tender, bright and light″ 4) In case of the favored colors of the essential parts, floors were Y or Pale tone of YR, walls were Very pale tone of Y, PB, B, RP. And Very pale tones of B, PB, Y, White for ceilings, Pale tones of YR, White, Dark Blue for opening parts were favored.

White electroluminescent device by ZnS:Mn, Cu, Cl phosphors

  • Kim Jong-Su;Park Jae-Hong;Kim Gwang-Cheol;Gwon Ae-Gyeong;Park Hong-Lee
    • Proceedings of the Korean Society Of Semiconductor Equipment Technology
    • /
    • 2006.05a
    • /
    • pp.225-231
    • /
    • 2006
  • .고상반응법 (solid state reaction)합성된 ZnS:Mn,Cu,Cl 형광체는 약 $20^{\sim}25{\mu}m$ 의 구형이고, Cubic/hexagonal 구조를 보였다. Electroluminescent device(ELD)는 실크 스크린된 형광층(ZnS:Mn,Cu,Cl)/유전체층 ($BaTiO_3$)으로 구성되었으며, 각층은 $30^{\sim}50{\mu}m,\;50^{\sim}60{\mu}m$ 정도로 도포 하였다. 100 V-400 Hz 의 구동조건에서, ELD 의 백색 발광은 450 nm, 480 nm 픽에서 각각 $Cl_s{\to}Cu^{+}\;_{Zn},\;Cl_s{\to}Cu^{2+}\;_{Zn}$ 전이에 의해 중첩된 청색, 녹색 밴드의 발광과, 580 nm 픽에서 Mn 의 $^{4}T_1{\to}^{6}A_1$ 전이에 의한 황색 밴드의 발광으로 이루어진다. Cu 농도의 증가에 따라 450 nm 의 발광 밴드의 휘도는 감소하며 580 nm 의 발광 밴드의 휘도가 증가하였고 발광 휘도가 향상되었다. 즉, 색온도가 높은 cold white(10000 K)에서 색온도가 낮은 Warm white(3000 K) 로 변한다. 이것은 450 nm 의 발광 밴드가 580 nm 의 발광 밴드에 흡수되는 에너지 전이 (Energy transfer) 현상에 기인한다. ZnS:Mn,Cu,Cl 의 Mn 1.5 wt %, Cu 2.5 wt.% 에서 최적 발광 휘도를 보이며, 100 V-400 Hz 에서 약 $12cd/cm^2$이였다.

  • PDF

A study on the EVA reforming processes transparency sheet and nonwoven warm air point adhesion using of tunnel waterproofing method. (EVA개질 투명시트와 부직포를 열풍 점융착한 일체형 방수시트를 이용한 터널방수공법에 관한 연구)

  • Seon Yun-Suk;Kim Jaun-Sull;Kim Su-Ryon;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2005.05a
    • /
    • pp.185-190
    • /
    • 2005
  • Safe, economical and environment-friendly tunnel construction are required again along with social continuous development, the importance of waterproof work that is portion that actually all of user and builder can find that is embossed by tunnel construction's one of important construction. Also, ECB (Ethylen Copolymer Bitumen) sheet that is used in existing tunnel waterproofing method (ECB waterproofing method) being black because asphalt (Bitumen) is added, by purpose that make illumination of tunnel interior brightly and scar discovery eases in sheet with coating white film, but ECB that is used present according as ECB that asphalt is added does not satisfy high tensile strength of construction field, quality standard of extension. Also ECB denigrates color of black M/B that asphalt is excepted.

  • PDF

The Origin, Changes and Compositive Principles of Hyangsayangyi-tang (향사양위탕(香砂養胃湯)의 기원(基源), 변천과정(變遷過程) 및 구성원리(構成原理))

  • Kang, Mi-Jeong;Lee, Jun-Hee;Koh, Byung-Hee;Lee, Eui-Ju
    • Journal of Sasang Constitutional Medicine
    • /
    • v.22 no.3
    • /
    • pp.43-50
    • /
    • 2010
  • 1. Objectives: The purpose of this study is to understand the origin, changes and the constructive principles of Hyangsayangyitang (XiangShaYangWeiTang). 2. Methods: Hyangsayangyi-tang and other related prescriptions were analyzed in terms of pathology, based on "Donguibogam(東醫寶鑑)", "Donguisusebowon Chobongwon(東醫壽世保元 草本卷)", "Donguisusebowon Gabobon(東醫壽世保元 甲午本)", "Donguisusebowon Sinchukbon(東醫壽世保元 辛丑本)". 3. Results and Conclusions: (1) The origin of Hyangsayangyi-tang is Hyangsayukgunja-tang from "Gongshin Uigamseo(龔信 醫鑑書"). Hyangsayangyi-tang inherited some of the principles from"Euihangangmok(醫學綱目)" Jeonssiyigong-san's (全氏異功散) application. (2) "Gabobon(甲午本)"'s prescription emphasizes the effect of lossen up by using Pogostemonis Herba(藿香). "Sinchukbon(辛丑本)"'s prescription emphasizes the effect of warm up stomach by using Zingiberis Rhizoma(乾薑). (3) Ginseng Radix(人蔘), Atractlodis Rhizoma White(白朮), Glycyrrhizae Radix(甘草), Paeoniae Radix Alba(白芍藥) support Soeumin's spleen root (脾元), and Zingiberis Rhizoma(乾薑), Myristicae Semen(肉豆蔲) warm up stomach, and Pinelliae Rhizoma(半夏), Citri Pericarpium(陳皮) circulate Qi, Crataegi Fructus(山楂), Amomi Fructus(砂仁), Cyperi Rhizoma(香附子) encourage digestion to maintain descending Yin.

Developing descriptive analysis protocol for gochujang: establishing optimal palate cleanser (고추장 묘사분석을 위한 프로토콜 개발: 입가심물질 중심으로)

  • Lee, Eun-Hye;Chung, Seo-Jin;Yu, Seon-Mi;Han, Kui-Jeong
    • Korean journal of food and cookery science
    • /
    • v.29 no.5
    • /
    • pp.489-500
    • /
    • 2013
  • This study was conducted to establish an effective palate cleanser when conducting descriptive analysis for gochujang products. In addition, descriptive analysis procedure for gochujang products was optimized. A generic descriptive analysis was performed on 4 types of gochujang samples varying in hot and spicy levels. The sensory attributes developed were 9 odors, 13 flavors, 4 texture and mouth feel attributes, and 4 appearance attributes. In order to select an effective palate cleanser for gochujang, 5 types of cleansers were tested (water, water+bread, water+cucumber, water+milk, water+cracker). Correct answering rate, significant numbers of product effect on sensory attributes, and the mean hot and spicy intensity values were considered to select the optimal palate cleanser. Results showed that as the hot & spicy level increased, red pepper odor and flavor significantly increased whereas umami taste intensity decreased. When comparing the efficiencies of various palate cleanser, the correct answer rates were the highest when warm water was used with either cucumber or cracker. Additionally, the attribute intensities were better differentiated between gochujang samples when cracker, white wheat bread, or cucumber were used. Overall, warm water with cucumber or cracker were shown to be the most effective cleansers.

Pathogenicity of Two Species of Sclerotium to Nine Cultivars of Garlic Cultivated Widely in Korea (마늘의 흑색썩음균핵병에 대한 품종저항성의 역학적 평가)

  • Kim, Yong-Ki;Kwon, Mi-Kyung;Cho, Weon-Dae;Kim, Tack-Soo;Shim, Hong-Sik;Lee, Yong-Hwon;Lee, Chan-Jung;Lee, Seong-Chan
    • Research in Plant Disease
    • /
    • v.10 no.2
    • /
    • pp.105-111
    • /
    • 2004
  • Mycelial growth and days required for sclerotial formation(DRSF) in vitro, and disease incidence of infected plants in the field were investigated to evaluate disease resistance of nine garlic cultivars against two species of Sclerotium causing garlic white rot. There were differences among mycelial growth and sclerotial formation of two white rot pathogens on different garlic cultivars in vitro. Mycelial growth showed the highest level on the clove of 'Daeseo'. Sclerotia of two white rot pathogen were formed the earliest on the clove of 'Kodang' and the latest on the clove of 'Namdo'. In field trial all of nine garlic cultivars were highly susceptible to Sclerotium cepivorum and cold-type garlics were less susceptible than warm-type garlics. Meanwhile garlic cultivars used showed differences among resistant responses to Sclerotium sp., forming large sclerotia. All of warm-type garlics showed highly susceptible response, but three cold-type garlics, 'Seosan', 'Danyang' and 'Yechon' showed moderate resistant response and 'Euisung' showed resistant response. To evaluate cultivar resistance of garlics quantitatively disease progress curve was transformed as linear regression equation. Among the intercept (early disease incidence) and the slope (disease infection rate) obtained from the transformed equation, final disease incidence, and area under disease progress curve(AUDPC), AUDPC was the most effective to evaluate disease resistance of garlics to both of white rot pathogens. There was little correlation between mycelial growth and sclerotial formation on garlic cloves in vitro, and epidemiological parameters (early disease incidence, final disease incidence, disease infection rate, AUDPC) obtained from the field trial. Mycelial growth of S. cepivorum was positively correlated with final disease incidence and disease infection rate obtained from the field trial, meanwhile DRSF was negatively correlated with the epidemiological parameters.

Photochemical Index Analysis on the Influence of LED Illumination Color Temperature on Donarium Cherry (도시야간조명의 LED 색온도별 겹벚나무의 광화학적 생리지표 해석)

  • Kim, Ji-Su;Yoo, Sung-Yung;Kim, Hway-Suh;Kim, Tae-Wan
    • Korean Journal of Environmental Biology
    • /
    • v.36 no.2
    • /
    • pp.117-123
    • /
    • 2018
  • In this study, the efficiency of photosynthetic electron transfer according to LED color temperature was verified in order to find a way to efficiently grow trees under night illumination. The experiment was carried out with White treatment, Warmwhite treatment, and non-treatment with donarium cherry. The study uses to a method for analyzing and evaluating the color temperature of an LED light source by photochemical analysis. We found that all treatments 115 DAT of maximum fluorescence amount(P) had the lowest. In the treatment using white light and the Warm-white light, the T amount of florescence of the late stage during the transition of the J-I level was increased, and the photosystem I electron transfer efficiency was decreased. Therefore, the electron transport efficiency of $RE1_O/CS$ and RE1o/RC were reduced. Especially, compared to Warmwhite, the light intensity increased greatly in the white-light treatment, The $PI_{TOTALABS}$ of 7 DAT was the highest value, but it was decreased to the lowest value on 115 DAT. This study has shown that the white treatment was low in electron transfer efficiency and soundness. Warmwhite-light treatments showed lower stress.

OLED와 LED를 이용한 Hybrid 조명의 색변환

  • Gong, Hye-Jin;Kim, Yeong-Mo;Kim, Yeong-Man;Choe, Beom-Ho;Lee, Jong-Ho
    • Proceedings of the Korean Vacuum Society Conference
    • /
    • 2012.08a
    • /
    • pp.293-294
    • /
    • 2012
  • 백색 OLED 조명 분야에서 색 변환은 큰 이슈가 되고 있다. 하지만 청색 유기물의 발광 특성이 좋지 못하여 아직까지 정착이 되지 못하고 있는 것이 현실이다. 본 연구에서는 발광 효율이 낮은 청색 OLED 대신 청색 LED와 황색 OLED를 사용하여 색 변환을 통한 백색 발광 panel을 제조하고 전기 및 광학적 특성을 평가하였다. 먼저 OLED소자는 진공증착방법을 사용하여 ITO (150 nm)/KHI-001 (5 nm)/LG-101 (10 nm)/KHT-001 (25 nm)/ PGH-02 (25 nm): Ir (mpp) 3 (8%): PRD-003 (0.3%)/TMM-004 (10 nm)/LG-201 (20 nm): LiQ (50%)/Al (150 nm) 구조를 갖는 발광면적 $70{\times}70mm^2$의 황색 OLED panel을 제작하였다. CIE 1931색좌표는(0.49, 0.49)이고, 효율은 $41.61{\ell}m/W$이다. 그리고 LED는 청색 칩을 한 줄로 나열하여 LED bar를 만들었고 여기에 도광판, 리버스 프리즘시트, 확산시트 그리고 반사시트를 더하여 점광원을 면광원화 하였다. CIE 1931색좌표가 (0.15, 0.04)이며 효율은 $3.56{\ell}m/W$이다. 황색 OLED를 청색 LED 면광원 뒤에 붙여서 두 빛이 도광판 위쪽으로 나오게 하였다. 이렇게 hybrid된 빛은 인가 전류를 변화 시킴으로써 색온도 3,200 K의 warm white에서 7,800 K의 cool white까지 변환이 가능하였다. 그리고 순백의 hybrid 빛을 얻을 수 있었는데 이때의 색온도는 4200K이고 CIE 1931색좌표는(0.34, 0.33)이며 연색지수는 89였다.

  • PDF

Daylight color temperature to match 60W LED lighting system development for the interior general Lighting (주광의 색온도와 일치하는 실내 전반 조명용 60W LED 조명제품 개발)

  • Kim, Jin-Hong;Lim, Su-Keun;Park, Joung-Wook;Kim, Gi-Hoon;Song, Sang-Bin
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
    • /
    • 2009.10a
    • /
    • pp.197-200
    • /
    • 2009
  • 주광의 색온도와 일치하는 실내 전반 조명용 60W급 LED 조명제품 개발하기 위하여 실내 주광에 적합한 LED를 선정하고, 색온도, 광색제어를 위한 구동회로 및 제어회로를 설계 제작 하였다. 그리고 1W급 Cool White, Warm White Package LED 총 168 EA를 적용하여 주광의 색온도와 일치하는 실내전반 조명용 LED 조명 System 을 개발하였다. 주광의 색온도와 일치하는 실내 전반용 LED 조명제품은 60W급 LED SMPS 구동회로 및 광색/색온도 제어회로 설계, 면발광을 위한 방열 설계 및 기구 구조 설계를 통하여 개발되었으며, 직접 시제품을 제작하고 그 성능을 측정하였다. 그 결과 회로 효율은 85% 이상, 색온도는 $3,000{\sim}7,000K$에서 실시간으로 제어 가능 하고, 원하는 색온도을 구현 할 수 있도록 하였으며, 발산각 또한 최대 광도의 1/2 기준으로 $100^{\circ}$ 이상을 만족시켰다.

  • PDF

A Study on the Relativity between Fashion Style and Economic Environmental Changes Expressed in Women Magazine (여성잡지에 표현된 패션스타일과 경제환경 변화간의 상관성 연구)

  • Kim, Sae-Bom;Lee, Eun-Sook
    • Fashion & Textile Research Journal
    • /
    • v.10 no.5
    • /
    • pp.601-606
    • /
    • 2008
  • The purpose of this study was to reveal relations between fashions and economic by analyzing the fashion style expressed in women magazine advertisements. The method of this study was used content analysis with 1933 samples in women magazine ('Women Sense', 'Yeosung Dong-A', and 'Jubu Saeng-hwal') which were issued in March, June, September, and December from 1994 to 2002. The data analyses were divided six elements: silhouette, color, pattern, length of skirt & slacks, adjustment, and breadth of collar lapel. The results of this study were as follows; 1. The silhouette of the period before and after economic crisis was expressed in square silhouette. 2. The color of the period before economic crisis was expressed in white and black. The period after economic crisis was expressed in white, warm colors, secondary colors with black. 3. The pattern was expressed in plain pattern. 4. The length of skirt & slacks was expressed in various lengths. 5. The Adjustment was expressed in single button. 6. The breadth of collar lapel of the period before economic crisis was expressed in large breadth. The period after economic crisis was expressed in small breadth.