• Title/Summary/Keyword: 색 순도

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Conjoint Analysis of the Korean Floriculture Market for the Main Cut Flowers to Predict the Demand for Floriculture Plants (Conjoint 분석을 통한 주요 절화류의 소비 예측 분석)

  • Lim, Jin Hee;Shim, Myung Syun;Seo, Ji Yeon;Baek, Yi Hwa
    • Horticultural Science & Technology
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    • v.32 no.5
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    • pp.721-729
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    • 2014
  • This study was conducted to improve the consumption of floriculture plants by researching preferences of consumers for the main types of cut flowers. We analyzed the results of surveys, carried out by a company, that were largely about roses, chrysanthemums, and lilies. After departmentalizing consumers into groups and analyzing the results through conjoint and cluster analysis, we found that consumers showed a higher rate of use based on price and vase life than on flower color and flower shape in roses. The groups of rose consumers preferred a price of 1000 won, spray type flower shape, vase life of 7-8 days, and red flower color. In chrysanthemums, consumers showed higher rate of use for flower color than for vase life, flower shape, and price. The groups of chrysanthemum consumers preferred a price of 1000 won, standard flower shape, 16-20 days vase life, and yellow flower color. In lilies, consumers showed higher use rate for flower shape than vase life, price, and flower color. Lily consumers preferred a price of 2000 won, large flower shape, 4-7 days vase life, and yellow flower color. Thus, the major cut flowers (rose, chrysanthemum, and lily) all showed highest use rates in for vase life. These results highlight the importance of understanding the characteristics of consumer interests. They also emphasize that we should plan and create market-oriented and consumer-oriented products to improve the consumption of floriculture plants.

Studies on Anion, Element, Chromaticity and Antioxidant Activities of Commercial Dried Lavers (Porphyra yezoensis) Cultivated in Korea (시판 건조김의 음이온, 원소, 색도 및 항산화 활성)

  • Park, Wook-Min;Kim, Kee-Woong;Kang, Dong-Soo;Bae, Tae-Jin
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.2
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    • pp.323-327
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    • 2014
  • This study was carried out to provide basic data on the anion, element, chromatic and antioxidant activities of commercial dried lavers cultivated from Seocheon, Wando, Goheung and Busan in Korea. The highest concentrations of several anions ($Cl^-$, $NO_3{^-}$, $SO_4{^2-}$, and $PO_4{^3-}$ per 100 g of dried laver) were 412.00 mg in Wando, 545.90 mg in Goheung, 297.35 mg in Seocheon, and 79.70 mg in Wando, respectively. The highest concentrations of N, C, and S were 6.40%, 41.36%, and 0.98%, respectively, in dried laver cultivated from Wando. Hunter's color values were significantly high in the order of Seocheon < Goheung < Busan < Wando for lightness, Wando < Busan < Goheung < Seocheon for redness, and Goheung < Seocheon < Busan < Wando for yellowness in the dried lavers. Total phenolic content and DPPH (1,1-diphenyl-2-picryl-hydrazyl) radical scavenging activities showed highest values of 166.10 mg/100 g and 28.48%, respectively, in dried laver cultivated from Wando.

An effective object segmentation on the color plane using Fisher Linear Discriminant (Fisher 선형 분리자를 사용한 컬러 평면에서의 효과적인 목표물 추출)

  • Nahm, Jin-Woo
    • Proceedings of the Korea Institute of Convergence Signal Processing
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    • 2005.11a
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    • pp.213-216
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    • 2005
  • 자동차 번호판의 이미지에서 번호의 추출이나, 직물 이미지에서 오염 또는 훼손부분의 추출 또는 방사성 폐기물이나 기타 독극물 보관함의 이미지에서 오염이나 산화에 의한 훼손부위 등과 같은 목표물 이미지 추출은 흑백 이미지에서 명암의 차이를 이용하는 것보다는 컬러 이미지에서 색상의 차이를 이용하는 것이 더 효율적일 때가 많으며, 특히 배경과 목표물의 명암차이가 크지 않은 경우에 효과적이다. 배경과 목표물이 갖는 색상의 차이를 이용하여 분리하기 위해서 적색(R), 녹색(G), 청색(B) 의 RGB 평면 또는 순도(H), 포화도(S), 휘도(I)를 사용하는 HSI 컬러 평면 등이 많이 사용되며, 이 때 배경과 목표물의 색상의 히스토그램을 구해보면 보면 많은 경우 유사한 색 정보가 배경과 목표물에 공통으로 포함되어 분리에 어려움을 겪게 된다. 본 논문에서는 Fisher 선형 분리자(Fisher's linear discriminant)[1] 함수를 이용하여 3차원의 색상 특징 벡터를 1차원 직선에 투사하여 변환된 1차원 공간상에서 복잡성을 줄이고 효과적으로 분류할 수 있는 기법을 제안하였으며, 이를 도축된 식용 가금류의 영상에 적용하고 변질된 부분이 포함되어 식용으로 사용할 수 없는 것들을 효과적으로 분류할 수 있음을 보였다.

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The Optical Characteristics of High-Brightness LEDs for R/G/B/A/W Properties (고휘도 LED R/G/B/A/W의 광특성)

  • Hwang, Myung-Keun;Song, Jung-Yong;Huh, Chang-Su
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2003.05e
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    • pp.100-103
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    • 2003
  • 고휘도 LED(light emitting diode) 빨강(R), 녹색(G), 파랑(B), 호박색(A), 백색(W) 등의 중요한 광학특성인 광속(luminous flux), 효율(luminous efficacy), 피크 파장(peak wavelength), 가중치 평균 파장(weighted average wavelength), 반치폭 (full width at ha1f maximum), 색도좌표(chromaticity coordinate), 주 파장(dominant wavelength), 자극순도 (excitation purity) 와 휘도순도(colorimetric purity)에 대해서 비교검토하였다. 시험결과로 제시된 LED의 기본적인 특성 데이터는 추후, 새로운 조명용 LED 램프나 등기구(luminaire)를 개발 및 특성연구에 많은 도움을 줄 것으로 사료된다.

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Characteristics of Classification Literature Published in South Korea During the Period, 1945-1992 (국내 분류학 관련 문헌 분석: 1945-1992)

  • 정연경
    • Proceedings of the Korean Society for Information Management Conference
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    • 1994.12a
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    • pp.125-128
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    • 1994
  • 본 연구는 한국도서관학관계문헌색인, 1945-1974와 한국문헌정보학 색인, 1975-1992를 바탕으로 해방 후 48년간의 한국 분류학계가 어떻게 이루어져 왔는지를 연구해 보았다. 이병수, 임종순, 천혜봉, 배영활, 이경호 등에 의해 많은 문헌이 발표되었으며 국립중앙도서관의 도서관에 가장 많은 관련 문헌이 발표되었다. 1970년대 중반 이후로는 대학 논집과 전공학과의 학보에도 많은 문헌이 발행되기 시작하였다. 많은 발전에도 불구하고 외국과 비교해 보면 분류만을 중점적으로 연구하는 연구 단체의 조성과 그 단체가 주축으로 만들어지는 분류 전문 학술지의 발행이 시급하다.

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Effects of Sweet Persimmon Powder on the Characteristics of Bread (단감가루 첨가함량을 달리한 식빵의 품질 특성)

  • 정지영;김광호;신동주;손규목
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.31 no.5
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    • pp.738-742
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    • 2002
  • To develop sweet persimmon bread, the proper ratio of the sweet persimmon powder substituted for strong flour was decided. When 5%,10%,15% and 20% of sweet persimmon powder was substituted as much amount of strong How, the ratio of moisture absorption and loaf volume decreased while its weight increased. The contents of vitamin A,9-carotene and vitamin C increased as the substitute ratio of sweet persimmon powder increased. In color values, as sweet persimmon powder was added more, L and b values decreased and a value increased in the crust while in the crumb bread L value decreased and a, b values increased. In the sensory evaluation, the bread added with 10% persimmon powder was preferred to control in flavor, texture and overall acceptability but not in appearance.

Effects of processing conditions on tensile properties and color of Alaska Pollack meal protein isolate film (가공조건이 명태어분단백질 필름의 인장강도와 색에 미치는 영향)

  • YOU Byeong-Jin;SHIM Jae-Man
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.33 no.5
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    • pp.418-422
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    • 2000
  • The tensile properties and color of fish meal film under various processing conditions were measured to obtain basic data for biodegradable Alaska Pollack meal protein isolate (APMPI) film. The tensile strength and the elongation of APMPI film were increased with casting volume of APMPI solution but those of APMPI film were weakened with the addition of glycerol amount as well as reduction of pH values. In case of adding various plasticizer, the tensile strength of film was increased in order as follows: sorbitol, polyethylene glycol and glycerol. The elongation was increased in order of polyethylene glycol, sorbitol and glycerol. The tensile strength of film increased with increment of APMPI concentration, but the elongation of film was not affected by APMPI concentration. The tensile strength of APMPI film was decreased with the increment of relative humidity but its elongation was increased with the increment of relative humidity, Not only lightness and yellowness of film added with sorbitol but also redness and total different color of film added with polyethylene glycol showed the highest value in Hunter color system.

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Evaluation and Prediction of Color Changes of Sugar-Glycine Mixtures by Maillard Reaction (마이야르 반응에 의한 당과 글리신 혼합물의 색변화의 평가와 예측)

  • Kim, Woo-Jung;Chun, Young-Hye;Sung, Hyun-Soon
    • Korean Journal of Food Science and Technology
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    • v.18 no.4
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    • pp.306-312
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    • 1986
  • Color changes of a mixture of 0.8 M glucose, fructose or sucrose and 0.8 M glycine were evaluated by Hunter 'L', 'a', 'b' values during Maillard reaction at the temperature range of $70^{\circ}-100^{\circ}C$. The results suggested the reaction to be devided into three stages. In initial reaction the 'L' and 'a' values decreased slowely, and 'b' rapidly increased to maximum, which were followed by a rapid decrease in 'L' and 'b' and rapid increase in 'a' values at intermediate stage. At final reaction period the both 'L' and 'b' were slowed down in their reduction rate while 'a' decreased rapidly from its maximum point. All of the Hunter values were reached to nea. zero. Linear equations, which can be used for prediction of cole. change in Maillared reaction, of $1/\sqrt{(L_t-L_{\circ})^2\;+\;(a_t-a_{\circ})^2\;+\;(b_t-b_{\circ})^2}\;=\;a(1/t)\;+\;b$ for Hunter values and $1/\sqrt{X\;+\;Y\;+Z}\;=\;a(1/t)\;+\;b$ for CIE tristimulus values were found to have a very high correlation coefficient. Relationships between 'L' and 'a', 'L' and 'b' and 'a' and 'b' were also graphcally compared.

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