• 제목/요약/키워드: Content characteristics

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제지회계 지반개량재로 처리된 연약점토의 물리적 특성 (Physical Characteristics of Soft Clay Improved by PFA Stabilization Agent)

  • 김광빈;이용안;김유성
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2002년도 가을 학술발표회 논문집
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    • pp.561-568
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    • 2002
  • PFA(Paper Fly Ash) are reclaimed mainly or used in cement industry field as mixture agent in terms of materials recycling. Recently, research for recycling PFA as embankment materials or soil stabilization agent are undergoing in geotechnical engineering field. In this study, physical characteristics of PFA stabilization agent-soil admixtures are examined in change of water content, void ratio, consistency, grain distribution, specific gravity and density. Futhermore, the physical characteristics are compared with unconfined strength as engineering characteristics. Test results showed that unconfined strength and density are increased with increasing of PFA stabilization agent mixed ratio. On the other hand, specific gravity, void ratio and water content are decreased with increasing of PFA stabilization agent mixed ratio. It would be concluded that natural high water content ratio weak soil could be highly improved engineering and physical characteristics with PFA stabilization agent

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클로렐라를 첨가한 설기떡의 품질특성 (Quality Characteristics of Sulgidduk Containing Chlorella Powder)

  • 박민경;이재민;박찬현;인만진
    • 한국식품영양과학회지
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    • 제31권2호
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    • pp.225-229
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    • 2002
  • 생리 활성 효과가 기대되며 영양학적 가치가 높은 클로렐라를 실용적으로 활용하는 방안의 일환으로 클로렐라 설기떡을 제조하고 품질 특성 및 적정 제조조건을 알아보았다. 클로렐라 설기떡은 첨가되는 물의 양을 15%와 20% 수준으로 나누고 클로렐라 분말의 첨가량을 달리하여 (0%, 0.2%, 0.5%, 1%) 제조하였으며 다음과 같은 결과를 얻었다. 기계적 조직감의 검사 결과, 15%의 물을 첨가하여 설기떡을 제조할 경우는 대조군에 비해 클로렐라 첨가군에서 경도, 씹힘성, 파쇄성 등이 증가하고 부착성이 감소하여 조직감이 감소하지만, 20%의 물을 첨가하여 만든 설기떡의 경우는 대조군에 비해 클로렐라 첨가군에서 경도, 씹힘성, 파쇄성 등이 감소하고 응집성, 부착성 등이 증가하여 조직감의 개선효과가 나타났다. 또한 24시간 저장 후에도 대조군에 비해 좋은 조직감을 유지하였다. 클로렐라 설기떡을 제조한 후 중량변화를 살펴본 결과, 대조군에 비해 클로렐라의 첨가량이 증가함에 따라 설기떡의 중량도 증가하였다 이러한 결과는 클로렐라 첨가에 의해 설기떡의 수분 보유량이 증가하기 때문인 것으로 추정된다. 색도측정 결과 클로렐라 첨가량이 증가함에 따라 L값은 감소하고 a 값은 음(-)의 값이 커져 녹색이 강해짐을 알 수 있었다. 20%의 물을 첨가하여 제조한 클로렐라 설기떡의 관능검사 결과 클로렐라 첨가에 의해 경도와 색에 대한 기호도가 높아졌다. 그러나 1%의 클로렐라를 첨가할 경우 향과 종합평가에 대한 기호도가 떨어지는 것으로 나타났다.

농축단호박 분말을 대체한 혼합분과 반죽의 특성 (Rheological Properties of Composite Flour and Dough with Concentrated Sweet Pumpkin Powder)

  • 이찬호;김문용;전순실
    • 한국식품조리과학회지
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    • 제24권4호
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    • pp.511-516
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    • 2008
  • In this study, composite flour and dough were prepared with concentrated sweet pumpkin powder(CSPP) at varying concentrations of 3, 6, 9, 12, and 15%. The samples and a control were then compared with regards to quality characteristics, including moisture, protein, and ash contents, farinogram characteristics, amylogram characteristics, and falling number of flour and extensogram characteristics of dough, in an effort to determine the optimal ratio of CSPP in the formulation. As the CSPP content increased, the moisture and protein contents of the flour increased, whereas the ash contents decreased. With regard to the farinogram characteristics of flour, water absorption, development time, and stability decreased with increasing CSPP content, while weakness increased. The control group evidenced a significantly higher beginning temperature of gelatinization as compared to the CSPP samples. The temperature of maximum viscosity, maximum viscosity, and falling number of flour decreased with increasing CSPP content. With regard to the extensogram characteristics of dough, extensibility decreased with increasing testing time and CSPP content, whereas resistance, maximum resistance, and R/E ratio increased. In conclusion, these results show that $6{\sim}9%$ CSPP may prove very useful as a substitute for wheat flour in the production of hardroll bread, and may provide good nutritional and functional properties.

고함수비를 가진 준설토의 압밀특성 (Consolidation Characteristics of Dredged Soil with High Water Content)

  • 주재우;정규향;김영규
    • 한국농공학회지
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    • 제45권5호
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    • pp.133-139
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    • 2003
  • Dredged soil from sea has much higher water content than liquid limit of clay and even if small loads apply, it will suffer a great settlement. Therefore it is very difficult to perform a consolidation test with general consolidation apparatus because of high water content. In this study Rowe Cell Apparatus consolidation tests have been performed with 1 remolding clay of water content 56% and 4 slurry clays of a water content of 100%, 120%, 133% and 150%. From the test results the consolidation characteristics such as compression index, secondary compression index and consolidation coefficient have been investigated with a variation of water content of dredged soil. The equations to get consolidation constants such as a compression index, a consolidation coefficient have been proposed with the field water content.

해바라기씨를 첨가한 설기떡의 품질 특성 (Quality Characteristics of Sulgidduk Supplemented with Sunflower (Helianthus annuus) Seeds)

  • 임점희;강양선;김종군
    • 동아시아식생활학회지
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    • 제18권3호
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    • pp.337-344
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    • 2008
  • This study was conducted to investigate the quality characteristics of Sulgidduk with different ratios of sunflower seeds (0, 3, 6, 9, 12%), stored over 3days. As amount of sunflower seed content increased, moisture contents decreased $41{\sim}36%$. The L-value decreased with increasing seed content, while a- and b-values increased. Mechanical evaluation revealed that hardness was highest at 0% and lowest at 12% seed content during the storage period. Adhesiveness was highest at 0% seed content, decreasing with increasing seed content on the first day, while cohesiveness did not show significant differences with or without seed content. Springiness increased with increasing seed content, while gumminess and chewiness decreased with increasing seed content. Results of sensory evaluations showed that color and flavor increased with addition of sunflower seed, with softness, moistness, chewiness and overall-acceptability being highest at 6% seed content. In conclusion, results prove that Sulgidduk with 6% of sunflower seed content is the best.

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유튜브 콘텐츠에 표현된 한국적 패션 스타일 (A study on Korean fashion style expressed in YouTube content)

  • 곽가빈;김세진
    • 복식문화연구
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    • 제29권2호
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    • pp.289-306
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    • 2021
  • The study aims to define the Korean Wave as global attention to Korea's unique culture and consider the specificity of traditional Korean fashion images in Korean Wave content. The research method of this study is a case study through literature research. In order to collect Korean Wave content on YouTube, 24 channels with the highest number of views were selected from among content uploaded from 2018 to the present through keyword search, and up to two channels with high views showing traditional Korean fashion images. As a result of selecting the analysis target, 41 Korean Wave videos and 368 costumes were selected and analyzed based on fashion style elements, including item, color, detail, motif, styling, silhouette, and accessory. As a result of the study, music, broadcast, fashion, and other content were found in the Korean Wave content fields in which Korean fashion style appeared, and the characteristics of each field were derived. Music content was characterized by fashion style excluding stereotypes about traditional Korean costume, broadcast and fashion content was characterized by fashion style inherited from traditional costume, and other content was characterized by symbolic fashion style of traditional culture. This study is meaningful in revealing the formative characteristics of traditional Korean design elements recently shared online through the study of Korean traditional fashion images in Korean Wave content.

천년초 선인장 분말을 첨가한 우리밀 국수의 품질특성 (Quality Characteristics Of Noodles Made From Domestic Korean Wheat Flour Containing Cactus Chounnyuncho (Opuntia humifusa) Powder)

  • 김경태;이경석;노용환;이기영
    • 한국식생활문화학회지
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    • 제29권5호
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    • pp.437-443
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    • 2014
  • The quality characteristics of noodles made from domestic Korean wheat flour added with 0, 1, 3, 5% cactus Chounnyuncho (Opuntia humifusa) powder were investigated. The water absorption and peak time of dough, as determined by farinography, increased with higher cactus powder content. Stability and elasticity of dough decreased as fermentation proceeded. Cooking characteristics of noodles made from dough such as weight, water absorption, and volume decreased with higher cactus powder content. The turbidity of cooked water increased significantly with 5% cactus powder content. For color test, L-value decreased while a-value and b-value increased with higher cactus powder content. In texture analyses, hardness, adhesiveness, springiness, cohesiveness, and gumminess increased with higher cactus powder content. In the sensory test, noodles containing 3% cactus powder were the most preferred.

상재하중과 점토함유량이 불포화 풍화토의 함수특성에 미치는 영향 (Effects of Overburden Pressure and Clay Content on Water Retention Characteristics of Unsaturated Weathered Soils)

  • 박성완;박재영;태두형;심영종
    • 대한토목학회논문집
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    • 제30권1C호
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    • pp.53-63
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    • 2010
  • 함수특성곡선은 불포화지반의 거동을 분석하는데 있어서 매우 중요한 물성으로 활용되고 있으나 많은 경우 상재하중과 세립분의 영향을 고려하지 않은 상태에서 측정되어 적용해 왔다. 따라서 본 논문에서는 국내의 대표적인 풍화토를 대상으로 상재하중과 점토의 함유량에 따른 함수특성 영향을 살펴보았다. 상재하중, 세립분, 그리고 이력 조건을 고려하여 함수특성과 불포화 투수계수를 SWCC 시험결과를 토대로 평가하였다. 또한 불포화시 습윤용적과 확산능력에 대하여도 살펴보았다.

Relationship of Physicochemical Characteristics and Ethanol Yield of Korean Barley (Hordeum vulgare L.) Cultivars

  • Lee, Mi-Ja;Kim, Yang-Kil;Park, Jong Chul;Kim, Young-Jin;Kim, Kyeong-Hoon;Choi, Induck;Choi, Jae-Seong;Kim, Kee-Jong;Kim, Hyung-Soon
    • 한국작물학회지
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    • 제57권4호
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    • pp.401-408
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    • 2012
  • The grain and agronomic characteristics of Korean barley cultivars were investigated with respect to ethanol yield. Test weight, grain yield, and starch yield showed noticeable variation among the cultivars. Grain yields were higher in covered barley and non-waxy barley. Starch yield was higher in non-waxy barley than waxy barley. Protein, ${\beta}$-glucan, and starch content of tested cultivars ranged in 10.0-12.9%, 4.4-7.5% and 49.7-65.3%, respectively. Naked barley cultivar had higher starch content than covered barley cultivar. However, covered barley had high starch yield because it has higher grain yield than naked barley. Covered barley cultivar had higher husk content, ranging 7.6-14.0%, than that of naked barley cultivar, ranging 5.3-8.0%. Starch content was positively correlated with amylose content, test weight, ethanol yield and negatively correlated with protein, husk, ${\beta}$-glucan content. Ethanol yield per ton was positively correlated with starch content, but negatively correlated with husk content. Ethanol yield per hectare was positively correlated with starch yield, grain yield, grain weight and negatively correlated with protein, test weight. From this research, the important characteristics of barley cultivar as a bioethanol producing material were starch content and grain yield. Optimum barley genotype was non-waxy naked barley that had low protein, ${\beta}$-glucan, husk content, and high starch content and grain yield.

동부앙금의 단백질 함량이 Gel화 특성에 미치는 영향 (Effect of Cowpea Precipitate Flour Protein on Characteristics of Gel)

  • 김경애;이선영;정난희;전은례
    • 한국식품조리과학회지
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    • 제13권5호
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    • pp.627-634
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    • 1997
  • 동부앙금의 단백질 함량이 높을수록 물결합력과 호화 개시 온도는 높았으나 팽윤력과 용해도, 광투과도는 낮은 값을 보였다. 최고 점도와 breakdown은 낮았으나, consistency와 setback은 높은 값을 보였다. 동부겔을 24시간과 48시간 실온에서 저장하면서 실시한 관능검사 결과는 단백질 함량이 높을수록 색깔과 투명도가 더 높은 값을 보였고 저장기간이 길수록 견고성, 응집성, 탄성, 종합적인 맛에서 더 높은 값을 보였으며 기계적 물성 검사 결과는 24시간 저장한 동부겔에서는 견고성, 껌성, 씹힘성의 특성치에서 단백질 함량이 높을수록 유의적으로 높았다. 그리고 48시간 저장한 동부겔에서는 견고성, 응집성, 껌성, 씹힘성의 특성치에서 유의적인 차이를 보였는데 응집성만 단백질 함량이 높을수록 더 낮은 값을 보였다.

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