• Title/Summary/Keyword: Colour Study

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Changes in the Physico-chemical and Microbial Quality during the Production of Pastırma Cured with Different Levels of Sodium Nitrite

  • Aksu, Muhammet Irfan;Erdemir, Ebru;Cakici, Neslihan
    • Food Science of Animal Resources
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    • v.36 no.5
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    • pp.617-625
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    • 2016
  • Pastırma, a dry-cured meat product, is produced from the whole muscle and/or muscles obtained from certain parts of beef and water buffalo carcasses. The purpose of this study was to determine the effects of different levels of sodium nitrite on changes in the physicochemical and microbial quality during the production of pastırma. The changes in residual nitrite, salt, pH, moisture, thiobarbutiric acid reactive substances (TBARS), colour (L*, a*, b*), total aerobic mesophilic bacteria (TAMB), lactic acid bacteria (LAB), Micrococcus/Staphylococcus (M/S), mould-yeast (M-Y), and Enterobacteriaceae counts of pastırma with 0, 50, 100 and 150 ppm sodium nitrite were determined during the production. The nitrite levels and the production stages had significant effects (p<0.01) on residual nitrite, TBARS, pH, salt, and colour values. The TBARS values of the pastırma with nitrite were significantly lower (p<0.05) than the control. The final TAMB, LAB, M/S, and M-Y counts of pastırma with 150 ppm nitrite were significantly (p<0.05) lower than the control. Also, the a* (relative redness) values of control pastırma were significantly lower (p<0.05) than the pastırma with nitrite. The production stages had a significant effect (p<0.01) on the moisture.

AN EXPERIMENTAL STUDY ON RESISTANCE OF DENTAL GOLD ALLOYS WITH LESS THAN 30% GOLD IN SALIVA AND CHEMICAL AGENTS (시판치과용 합금류의 타액등에 대한 내성실험)

  • Seo, Chang-Hwan
    • The Journal of the Korean dental association
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    • v.16 no.2 s.105
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    • pp.107-112
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    • 1978
  • The followings are dealing with 10 dental alloys with less then 30% gold, manufactured by S company 7, and by H company 3. We could find several noticable things by examining them about tarnish and corrosion with human saliva and several other chemicals, and through metal microscopy. 1) After the samples were submerged in human saliva for 3 months, the colour of the samples were no remarkable change. 2) taking a consideration of the error of santorius balance, also there had been little corrosive changes in human saliva. 3) The colour of A-4 was changed into red in 0.05% HCI solution, while that of P-B was changed into black in 0.1% Na₂S solution and severely corroded samples, P-B, X, and Z lost their original colour and turned black. 4) In case of submerging in H₂NO₃reagent, 50%, it caused serious diminishing changes in weight, that is, X 2.7%, Pb 31.0%, Z 40.5%, and there happened tremble corrosive reaction. 5) Seeing them through metal microscopy, we can obserre the corroded samples changed into the shape of.

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Effect of Packaging Methods on Colour, Lipid Quality and Microbial Growth of Beef Patties Enhanced with Flaxseed Flour

  • Altuntas, Irem;Turhan, Sadettin
    • Food Science of Animal Resources
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    • v.33 no.1
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    • pp.58-66
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    • 2013
  • In this study, the effect of packaging methods [aerobic packaging (AP), vacuum packaging (VP) and modified atmosphere packaging (MAP: 75% $N_2$, 25% $CO_2$)] on colour, lipid quality and microbial growth of beef patties enhanced with flaxseed flour was investigated during storage at $2{\pm}1^{\circ}C$ for 10 d. L and a values of beef patties packaged in MAP and VP were higher (p<0.05) than that of the samples packaged in AP. Packaging in MAP and VP retarded the lipid oxidation (TBA value) and inhibited the bacterial growth of beef patties enhanced with flaxseed flour. Furthermore, TBA values in beef patties were correlated with a values (r = -0.340; p<0.05). Packaging in MAP was more effective than packaging in VP for inhibiting microbial growth. The samples packaged in VP lost their shape due to the compression by external atmosphere. Packaging treatment had no significant effect on saturated fatty acid (SFA), monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) levels in beef patties. The a and b, TBA and MUFA values changed during storage time. TBA values for beef patties increased during storage time, but did not reach to the limit value (1 mg/kg) until the end of the storage time. The results suggest that the shelf life of beef patties enhanced with flaxseed flour can be extended by packaging in MAP.

A Study on the Characteristics of Fabrics Dyed with Astringent Unripe Persimmon juice (시협처리시의 특성에 관한 연구I)

  • 이혜선
    • Journal of the Korean Society of Costume
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    • v.28
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    • pp.205-212
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    • 1996
  • This paper is to study the characteristics of fabrics dyed with astringent unripe persimmon juice. The cotton silk rayon and nylon fabrics were dyed with astringet unripe persimmon juice. The structures of natural fabrics dyed fabrics and dyed fabrics followed by washing were examined by scanning electron mi-croscopy. Surface reflexibility of VIS trans-mittance of UV VIS and NIR were analyzed. The study conclues as follows: 1. Colour of cotton fabrics dyed with persim-mon juice became darkended as a function of exposing time to sunlight. That colour was chaged after washing. 2. Blocking effect of ultraciolet light and visible ray was increased in all dyed fabrics. Especially dyed cotton fabric blocked UV light perfectly and the blocking effect was still remained after 9 washings. 3. Persimmon juice dyeing produced coating effect to fabrics besides dyeing effect accord-ing to the scanning electron micrographs. In a word the cotton fabric dyed with per-simmon juice has blocking effect of UV light stiffness. Therefore I think persimmon juice dyeing is a very useful textile finishing and ex-pect a wide application of the technique in fu-ture.

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A study on the Cheoyongmu's costume of the paintings of Banquets during the Choseon dynasty - Focusing on the Comparison of the Cheoyongmu's costume in Akhakgwebeom - (조선시대 연회도에 나타난 '처용무' 복식 - "악학궤범" 처용무 복식과의 비교를 중심으로 -)

  • Kim, Moon-Ja
    • Journal of Fashion Business
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    • v.13 no.4
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    • pp.112-123
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    • 2009
  • The -purpose of this study is to examines the Cheoyongmu's costume of the paintings of Banquets during the Choseon dynasty focusing on the Comparison of the Cheoyongmu's costume in Akhakgwebeom. The method of the study is the literature analysis closely the occurrence, feature, and function of the Cheoyongmu by analyzing the costume process of transition of the eras was analyzed into the function and feature. The research was done by comparing and analyzing the difference of the costume in Akhakgwebeom. In term of difference, of the Cheoyongmu's costume of the paintings of Banquets and Akhakgwebeom had the shape and colour. In headgear, Samo(: 紗帽) or Bokdu was worn and the flower decoration on the Samo and Ui(:衣)was different pattern. The Gilgyong(:吉慶) was not worn. Hye(: 鞋) and Hwa(:靴) was worn and the colour of Hwa was different.

Sun Exposure and the Risk of Prostate Cancer in the Singapore Prostate Cancer Study: a Case-control Study

  • Chia, Sin-Eng;Wong, Kin-Yoke;Cheng, Christopher;Lau, Weber;Tan, Puay-Hoon
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.7
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    • pp.3179-3185
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    • 2012
  • Background: Most of the epidemiology studies on the effects of sun exposure and prostate cancer were conducted among the temperate countries of North America and Europe. Little is known about the influence on Asian populations. The purpose of current study was to evaluate any association of sun exposure with risk of prostate cancer in Chinese, Malays and Indians who reside in the tropics. Methods: The Singapore Prostate Cancer Study is a hospital-based case-control study of 240 prostate cancer incident cases and 268 controls conducted in Singapore between April 2007 and May 2009. Detailed information on outdoor activities in the sun, skin colour, sun sensitivity and other possible risk factors were collected in personal interviews. Cases were further classified by Gleason scores and TNM staging. Odds ratios (OR) and 95% confidence intervals (CI) were calculated using unconditional logistic regression analysis, adjusted for age, ethnicity, education, family history of any cancers, BMI and skin colour. Results: We found that prostate cancer risk was increased in subjects with black/dark-brown eyes (OR 5.88, 95%CI 3.17-10.9), darker skin colour e.g. tan/dark brown/black (OR 7.62, 95%CI 3.41-17.0), frequent sunburn in lifetime (OR 4.30, 95%CI 1.7-11.2) and increased general sun exposure in adulthood per week (OR 2.03, 95%CI 1.09-3.81). The increased risk was consistent for high grade tumours and advanced stage prostate cancers. Conclusion: The findings from this study suggest that excessive sun exposure is a risk factor for prostate cancer in Asians.

The Bathochromic Effect of Polyester Fabric Treated with Low Refractive Compounds (저굴절률 화합물 처리에 의한 PET직물의 심색화)

  • 박민식;장철민;서말용;김삼수;유승춘
    • Textile Coloration and Finishing
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    • v.10 no.5
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    • pp.48-55
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    • 1998
  • Polyester fabric is widely used in textile material though it has some problems such as low colour value, high refractive ratio(1.62) and etc. In order to give Z-black colour of polyester fabric, this study has selected several disperse dyes by measuring of absorbance, dyed in their optimum conditions and treated with 4 kinds of low refractive compounds such as silicone, fluorine, urethane and silicone-fluorine mixed compounds. The bathochromic effect of treated PET fabric evaluated as lightness(L) change by uv-visible spectrophotometer. This study also investigated that the effect of used bathochromic agents on the washing and lightfastness of treated PET fabric.

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A Study on the Emergency Public Warning System (긴급 공공경보시스템에 관한 연구)

  • Kang, Heau-Jo
    • Journal of Advanced Navigation Technology
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    • v.15 no.5
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    • pp.879-886
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    • 2011
  • Warning notification system base on mobile communication providers, is a warning information provider which senses the disaster and warning condition, provides the warning message to the entrepreneur and its mobile terminal. In this paper, for protecting our lives and properties, we study on disaster warning system ISO TC233's WG3's Public Warning model, Korea Disaster Forecasting and Warning System, disaster Forecasting and Warning System's role, and Colour-coded Alert etc.

Analyzing and Comparing the Effect on Lightsources and Colours in the Residences and Office Interior

  • Jin, Eun-Mi;Kang, Young;Lee, Jin-Sook
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2000.04a
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    • pp.149-156
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    • 2000
  • The aim of this study is to propose the predictive index and analyze the effect of lightsources and colour image types in the residence and office interior.This study was consisted of four steps, and was carried out as follows. 1) The condition of experiment was set up by optical characteristic of lightsources and colours. 2) The scaled model space was manufactured for the evaluation of the same condition by each space. And, some piece of furniture was manufactured for the representation of each space. 3) The emotivity response of lightsources and colours was measured. 4) Results of the evaluation of lightsources and colours were compared and analyzed by conditions, and the predictive index was proposed by image types.

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A Study on The Evaluation of Interior Atmosphere in Atrium with Glass Colour (유리 색에 따른 아트리움 실내공간의 채광분위기 평가)

  • Chung, Yu-Gun;Kim, Chan-Su;Kim, Jeong-Tai
    • KIEAE Journal
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    • v.3 no.3
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    • pp.51-58
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    • 2003
  • This Study aims to evaluate the interior atmospheres of atrium by glass colours. For the purpose, the 1/50 scale model of one-sided atrium was made and images of interior atmospheres were pictured under clear sky conditions. And then, questionnaire surveys were conducted on K university students in department architecture engineering. The survey results were analyzed by SPSS program. Frequency and correlation analysis were performed. As results, clear glass is chosen as the most preferred glass colour in any seasons. And, green and blue glasses are preferred in the order. And then, it is revealed that the main variables affecting satisfaction of interior atmospheres are a little changed by thermal senses of seasons. These variables are "bright", "neat", "warm", "comfort", "stable", "active", "static", "elegant" and "cool" through correlation analysis.