• Title/Summary/Keyword: bulb color

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Aging-Time Dependence of Color Rendering Index of a LED Lamp for Lighting (조명용 LED 램프의 사용 시간에 따른 연색지수 특성변화)

  • Son, Minwoo;Lee, Duck Hee;Seo, Jung-Chul
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.28 no.3
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    • pp.1-6
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    • 2014
  • We measured color rendering index(CRI) of a LED lamp for lighting for aging-time. We chose bulb type white LED lamp six samples and halogen lamp one sample and applied 220V, 60Hz to all the samples for 1,000hours at ordinary temperature. The CRI was measured every 20hours and the CRI change of the LED lamp was compared with the halogen lamp's CRI change. As time goes, efficiency of the halogen lamp decreased and the CRI maintained uniformly. The other hand, efficiency of the LED lamp decreased but the CRI increased. The CRI of the LED lamp has been stabilized since 600hours. The CRI change of the LED lamp was analyzed with a spectrum, color coordinate and color temperature.

Breeding of Asiatic Hybrid Lily 'Redsky' with Orange Red Color Petals for Cut Flowers (절화용 주황색 아시아틱나리 '레드스카이' 품종 육성)

  • Suh, Jong-Taek;Yoo, Dong-Lim;Nam, Chun-Woo;Kim, Su-Jeong;Hong, Soo-Young;Ryu, Seung-Yeol
    • Horticultural Science & Technology
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    • v.30 no.3
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    • pp.329-333
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    • 2012
  • A new Asiatic hybrid lily 'Redsky' cultivar was selected from a cross between 'Vivaldi' cultivar with pale pink color flower as mother plant and 'Prato' with orange colored flower in 2000 year. The selected bulb line was propagated and cultivated for line nomenclature as 'Gonong-F-na-10'. The survey of the growth and flower characteristics of 'Gonong-F-na-10' were conducted from 2005 to 2007 on summer cropping system under structure in Highland Agriculture Research Center, NICS, RDA. After all 'Gonong-F-na-10' was named as 'Redsky'. The flowers of the 'Redsky' cultivar had not soft hair and fragrance, and had orange red (O-R N30D) colored petals with dark brown spots in center of flower. The stem color was dark pink and brown caused by anthocyanin pigment, the stigma and pollen colors were brown. Flowering direction was upward. The flowering date was July 7 so early flowering. The plant height was 97.2 cm so long, number of flowers was 4.9 ea, and length of flower bud was 9.3 cm. The bulb weight was about 34.8 g and its bulb size was about 14.8 cm in circumference. 'Redsky' cultivar was registered as a new variety with No. 3119 in Korea Seed and Variety Service on June of 2010.

Study on the heat-resistance characteristic for PLS(Plasma Light System) (PLS(Plasma Light System)의 내열방사 특성 연구)

  • Shin, Sang-Wuk;Lee, Se-Hyun;Cho, Mee-Ryoung;Lim, Jong-Min;Hwang, Myung-Keun
    • Proceedings of the KIEE Conference
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    • 2004.11a
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    • pp.293-295
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    • 2004
  • PLS(Plasma Light System) is one of the electrodeless lamp discharged by micro wave. In this new lamp has high efficacy and CRI(Color Rendering Index). It is mainly composed of microwave part and optical part. Microwave parts consist of magnetron, wave-guide and cavity-mesh, while optical parts consist of bulb, mirror and reflector. In this paper, we studied experimentally the heat-resistance and temperature distribution characteristics of bulb in PLS.

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Characteristics of Seed Germination and Bulb Dormancy in Korean- Native Allium victorialis L. (韓國産 산마늘 種子의 發芽와 種球의 休眠 特性)

  • 강치훈;홍정기;최병곤;방순배;박영학;한종수
    • Korean Journal of Plant Resources
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    • v.13 no.3
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    • pp.219-226
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    • 2000
  • The experiments were conducted to investigate the characteristics of the seed germination and the bulb dormancy in Korean-native Allium victorialis L. by the physicochemical treatments. The characteristics of two Allium victorialis seeds was similar in shape, color and threshing but different in other characters. Weight of 1,000 grains in Ullrung-native was 14.8g corresponding to 2.1 times as compared with Odae-native. Seeding immediatly after seed collection of Ullrung-native only germinated and chemicals didn't affect in germination improvement. The germination rate, average days to germination and coefficient of germination of Ullrung-native was 86%, 42 days and 2.05 at the dark condition of control, respectively. The germination rate, average days to germination and coefficient of germination of Odae-native was 70%, 47 days and 1.5 at the dark condition of control and 82%, 47 days, 1.75 at the light condition after 5$^{\circ}C$ prechilling for 30 days, respectively. The bedding days to reduce the physiological dormancy in the bulb of Odae-native assumed to be appropriate up to 45 days after the first prechilling.

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HOME DESIGN A design of Sampung Apartment

  • Lee, Yun-Jeong;Park, Bu-Mi
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2008.05a
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    • pp.71-73
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    • 2008
  • In early Highlighting the client's personality especially, home design demands very careful consideration. It's not an easy task to understand the characteristics of each family member, to take into account their requirements, and strike proper harmony among them. For this Sampung Apartment Project, I decided to create a cozy homelike atmosphere by using overall modern and antique furniture, props, and lighting. I tried a different sense of space by choosing wood as the main material, installing furniture that looked antique, and applying painting with touch instead of pictures or wallpaper By the use of the light bulb color overall, lighting was yellow and added more comfort. Local lighting was used in certain places to add more fun along with the props. After choosing white as the main color, point colors were determined according to the client's inclination toward green and blue. The color choice also matched the client's paintings that were in soft green and blue. Each room was planned and color coordinated according to their own characteristics. The children's rooms were planned with such point colors as pink, green, and blue. The master bedroom and the family room were produced around gold and grey color, respectively.

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Response of Filefish to the Colored Lights (색광에 대한 쥐치의 반응)

  • 양용림
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.17 no.1
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    • pp.7-11
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    • 1981
  • The author carried out an experiment to find out the responsing patterns of filefish, Stepha nolepis cirrhifer (Temminck et Schlegel) to the color lights. The experimental tank (360LX50WX55H cm) was set up in a dark room. Six Longitudinal sections each being 60 em intervals are marked in the tank to observe the location of the fish. Water depth in the tank was kept 50 em level. Light bulbs of 20W were placed at the both ends of the tank to be projected the light horizontally into the tank. Two different colored filters were selected in combination from four' colors-red, blue, yellow, and white, and were placed in front of the light bulbs to make\ulcorner different light of color. Light intensity were controlled by use of auxiliary filters intercepted between the bulb and the filter. The fish were acclimatized in the dark for 40 minutes prior to employ in the experiment. Upon turning on the light, the number of fish in each section was counted 40 times in every 30 seconds, and the mean of the number of fish in each section was given as the gathering rate of the fish. The results obtained are as follows: 1. Color of light, to which the fish gathered abundantly was found in the named order of blue, white, green, and red. 2. The differences of gathering rate upon arbitary combined two color lights were shown significant, and the differences increased remarkably in accordance with the lapse of illuminating period.

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On the Development of Flesh Greening of the Stored Garlic (저장 마늘의 녹변현상에 관한 연구)

  • Kim, Dong-Man;Kim, Kil-Hwan
    • Korean Journal of Food Science and Technology
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    • v.22 no.1
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    • pp.50-55
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    • 1990
  • Differences in the major components between non-greening and greening garlic bulbs were compared, and the several factors to be affected on the greening were investigated to study on the greening phenomenon occured in garlic puree made from stored garlic bulbs. From the several chemical analyses it was found that the contents of total nitrogen and lipid were lower in the greening than in the non-greening bulb but the contents of pyruvic and succinic acid were not. The content ratio of glutamic acid to total amino acid and the composition ratios of linoleic and linolenic acid were high in the greening bulb in comparsion with the non-greening. The protein pattern of the greening bulb by SDS-PAGE was significantly differed from that of the non-greening, especially in molecular weight ranges of 45.0-66.2 Kd. From the studies on the effects of pH, temperature and duration on the development of green color in the garlic powder solution, the optimum pH for the greening was 5.5 and maximum degree of the greening in the pH adjusted solution was shown after 30 min at $50^{\circ}C$.

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A Case of Kallmann's Syndrome with Hypoplasia of Olfactory Bulb (후각구 형성부전을 동반한 칼만증후군 1례)

  • Nam, Y.S.;Lee, S.H.;Han, S.Y.;Yoon, T.K.;Cha, K.Y.
    • Clinical and Experimental Reproductive Medicine
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    • v.26 no.2
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    • pp.281-285
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    • 1999
  • Kallmann's syndrome has both a general and specific connotation in describing general condition of gonadotropin-releasing hormone (GnRH) deficiency or a particular cluster of anomalies associated with primary eunuchoidism. The familial occurrence of hypogonadotropic hypogonadism associated with anosmia, color blindness, synkinesia, and mental defect is the classic Kallmann's syndrome. Interestingly, anosmia, or lack of smell, was not found in the absence of gonadal deficiency in the original study of this disorder. This disorder was found on both sexes, but the male to female ratio was 11:1, and Kallmann's syndrome is more often listed under disorders of male hypogonadism for this reason. Gross anatomy has shown disorders of the olfactory bulbs associated with Kallmann's syndrome and it was demonstrated a failure of GnRH-containing cells to migrate from the olfactory placode to the hypothalamus and preoptic area. We have experienced a case of Kallmann's syndrome which showed a hypoplasia of olfactory bulb in MRI during the workup of primary amenorrheic patient. So we report this case with a brief review of literatures.

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Identification of 11 species of Paemo through each original plant and medicines (11종 패모(貝母)의 기원별 자연·약재상태 감별)

  • Lee, Seungho;Ju, Youngsung
    • The Korea Journal of Herbology
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    • v.29 no.6
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    • pp.133-140
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    • 2014
  • Objectives : Paemo is a phlegm-resolving drug with cold properties and classified 5 kinds which come from 11 species of original plant. All the more, according to literature record, 20 species of original plant were used. As a natural result, these are easily to confuse and there are a lot of counterfeit product. So we are to present a differential standard of Paemo. Methods : It was planed a differential standard form through outer appearance of the original plant and outer appearance in the form of each medicines which was collected local market or field for 11 species which is listed in Korea or China pharmacopeia. Results : It was possible to distinguish the orignal plant between Fritillaria and Bolbostemma through its stem shape. In Fritillaria of original plant, it was possible to distinguish through its width of leaf, number of leafy bracts, color and position of flower and shape of leaf apex. In outer appearance in the form of each medicines, there are difference in color and texture of medicine between Fritillaria and Bolbostemma and there are difference in size, shape, size of inner and outter fleshy leaf of bulb, pattern of surface and apex of fleshy leaf of bulb among 10 Fritillaria species. Conclusions : This study presents various differences in the outer appearance of the original plant and the outer appearance in the form of each medicines among Paemo. It will be helpful to further applied research.

Development of Basking Neodymium Lamp Improving Reflector Globe and Rhenium Filament (레늄 필라멘트와 반사 글로브를 개선한 Basking Neodymium Lamp의 개발)

  • Eo, Ik-Soo;Yang, Hae-Sool
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.8 no.3
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    • pp.477-482
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    • 2007
  • This paper examines and analyzes improvement of structure of bulb, increase of luminous efficiency through application of reflector globe through aluminum coating and development of 60[W] basking neodymium lamp through optimum insertion ratio of krypton gas and nitrogen gas. The results of this development shows that the life of the lamp was 7,200 hours, and the luminous flux was 620[1m]. This brings in superior color temperature and superior color rendering index, which allows us to use that lamp for agricultural or general purpose.

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