• Title/Summary/Keyword: 열풍

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Effects of Leaf Loading Quantity and Circulating Air Volume on the Physical and Chemical Characteristics during Curing in Flue-cured Tobacco Leaves. (열풍건조시 적입 및 송풍량에 따른 황색종 연초엽의 이화학성 변화)

  • 석영선;노재영
    • Journal of the Korean Society of Tobacco Science
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    • v.14 no.1
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    • pp.48-56
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    • 1992
  • This studies were carried out to investigate the effects of leaf loading quantity and circulating air volume during bulk curing on the variation of physical and chemical characteristics in flue-cured tobacco. The results are as follows : 1. The content of sugar in cured leaves was decreased with more circulating air volume and leaf loading quantity at bulk curing. 2. Total nitrogen and protein nitrogen were decreased with less circulating air volume and more leaf loading quantity, while amino nitrogen was increased. 3. The contents of linolenic acid and linoleic acid were increased with more leaf loading quantity and oxalic acid and citric acid had a tendency of being increased in case of high circulating air volume. 4. In general, major aromatic compounds were increased through flue-curing. Relatively high content of solanone in case of lower air volume and less leaf loading were observed, while megastig matrienone was increased when leaf loading was small. 5. The more circulation air volume with leaf loading quantity caused lowering equilibrium moisture content and higher shatter index, which resulted in poor quality of cured leaves based on quality index, nitrogen number, taste index phillips index, and sugar-nicotine ratio.

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Characteristics of Japanese Fine Art in Art Nouveau Jewelry (아르누보 장신구에 표현된 자포니즘 예술 특성)

  • Kwak, Bo-Young
    • Journal of the Korean Society of Costume
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    • v.59 no.7
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    • pp.114-126
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    • 2009
  • The purpose of this study is to analyze the art characteristics of Japonism expressed in Art Nouveau jewelry. This study also provided an opportunity to seek for the development direction of contemporary jewelry design for the future. The influence of Japanese arts in Art Nouveau jewelry, was mostly from Ukiyo-e, an art form from the Edo Dynasty in Japan. Japanese arts soon inspired the origination of Art Nouveau across Europe in the late 19th century. And the scope of its infuluence is shown in jewelry which created by contemporary painters and designers. Ukiyo-e, a folk painting was created from multi-color wooden printmaking emerged many Japanese art collectors, including Samuel Bing and Arthur Lasenby Liberty. This became a source of new inspirations for Degas, Monet, Gogh and the origin of Japonism. The layout techniques that used perspectives higher than eye level and that extremely cut or expanded major objects for emphasis were typical Ukiyo-e characteristics. The result of this study is found out by showing the evidence that influence of this Ukiyo-e's method came up with specificity as planity, naturality, decoration and express on the Art Nouveau jewelry.

Development of Drying System using NIR and Hot Air Method (근적외선 및 열풍방식을 이용한 건조시스템 개발)

  • Ko, Jae-Sub;Choi, Jung-Sik;Kang, Sung-Jun;Baek, Jung-Woo;Jang, Mi-Geum;Moon, Ju-Hui;Chung, Dong-Hwa
    • Proceedings of the KIPE Conference
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    • 2010.07a
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    • pp.589-590
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    • 2010
  • The drying method that is applied in industry is mainly used hot air drying method witch is circulated heated air by generating heat from thermal source. But these methods have problems such as decreasing drying efficiency and waste of energy by low thermal efficiency. Therefore, this paper proposes high efficiency hybrid drying system using near infrared ray(NIR) drying method using halogen lamp and hot air drying method. And this paper proves validity of proposed drying system through experiment about thermal and humidity of drying system inside.

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Comparison of Lane Curing Time using Natural Drying and Line Drying Device when Painting Pavements on Highways (고속도로에서 차선도색시 자연건조 및 열풍기 사용시의 차선 양생시간 비교)

  • Hong, Su-Jeong;Oh, Heung-Un
    • International Journal of Highway Engineering
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    • v.20 no.4
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    • pp.35-46
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    • 2018
  • PURPOSES : The purpose of this study is to compare the lane curing time of natural drying and a lane drying device when painting lines on a highway. METHODS : The painting process was carried out in July 2015 and September 2015, respectively, for the Gimcheon IC - Gimcheon JC. After the painting, measurements were obtained three times at six measurement points located at 20 m intervals on the shoulder line and the dividing line. The curing time was measured for natural drying and drying using a lane drying device, and compared for different pavement types (asphalt, concrete) and paint types (waterborne paint, methyl methacrylate paint). RESULTS : The results of the lane curing time comparison on the highway are as follows. The combination of asphalt and methyl methacrylate paint cured more rapidly during both the natural drying and drying using the lane drying device. Finally, it was cured at least 32.2% and 40.7% faster when using a drying device than in natural drying. CONCLUSIONS : The comparison of lane curing time of the highway showed that the combination of asphalt and methyl methacrylate paint cured more rapidly when using both natural drying and a lane drying device.

An Analysis of the Perception of Elementary School Teachers and School Librarians on Educational Graphic Novels (학습만화에 대한 초등학교 교사와 사서교사의 인식 분석 연구)

  • Lim, Yeojoo
    • Journal of the Korean Society for Library and Information Science
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    • v.46 no.4
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    • pp.341-360
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    • 2012
  • This study is part of a larger project that investigated the patterns of children's use of educational graphic novels (EGNs), a publication format that has been popular among young readers in Korea since 2000. In-depth interviews with elementary school teachers and school librarians uncovered tension and gaps between these adult professionals and children's enjoyment of the format. Interviewees' views on EGNs ranged from limited tolerance to a potential candidate for high-interest / low-vocabulary reading. All teachers and school librarians urged for guidelines and criteria for selecting and evaluating EGNs for children.

Changes in Taste Compounds of Processed Surf Clam(Mactra veneriformis) (동죽(Mactra veneriformis)가공에 따른 정미성분의 변화)

  • Ryu, Hwa-Jeong;Ko, Young-Su
    • Korean Journal of Food Science and Technology
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    • v.17 no.3
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    • pp.223-226
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    • 1985
  • The taste compounds including glycogen, nucleotides and their related compounds and free amino acid content of Raw, Boiled and Sun-dried and Boided and 1lot-air dried surf clam(Mactra veneriformis) were investigated. Crude protein and crude lipid content changed little after processing, but ash content of processed surf clam was increased 21.5%. Glycogen content was increased 6.7% in a processed surf clam. In nucleotides and their related compounds there are much ATP, ADP, IMP and Hypoxannthine in raw material, ATP, ADP, IMP content was decreased and Hypoxannthine disappeared after processing, In the raw extract, glycine, alanine, arginine were abundant, holding 85% of total free amino acid contents. After processing, generally 60% of raw material free amino acids content were existed.

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Economic Evaluation through Thermal Efficiency Elevation in Hot Air Drying Tower (열풍건조로의 열효율 향상을 위한 개선방안 연구)

  • Kim, Dong-Kyu;Kum, Jong-Soo;Kim, Jong-Ryeol;Kim, Sang-Jin;Chung, Yong-Hyun;Kim, Dong-Kyu;Kong, Ki-Bong
    • Journal of Fisheries and Marine Sciences Education
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    • v.20 no.3
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    • pp.500-507
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    • 2008
  • Hot air drying is a method that let moistures evaporate by heat exchange between heating air and dry target. This way is dominating more than about 70% of dryers that the use extent is wide fairly, and is established in domestic than dryer that use conduction or radiation etc. Most of research about drying had been emphasized in size of device through analysis for these dry phenomenon plain, heating topology, and aspect of form and so on by dry target's special quality, and research about device development or waste heat withdrawal technology in energy utilization efficiency side is slight real condition. Therefore, in this study, Investigated numerically about thermal efficiency elevation that is leaned against as that change the temperature of inlet and outlet in heat exchanger of the hot air drying tower.

Three-dimensional Distribution and Variation of Moisture Content of Boxed-heart Square Timber of Pinus densiflora During Drying (소나무 수심 정각재의 건조 중 3차원 함수율 분포와 변이)

  • Kang, Wook;Lee, Hyoung-Woo;Chung, Woo-Yang
    • Journal of the Korean Wood Science and Technology
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    • v.34 no.1
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    • pp.7-14
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    • 2006
  • Three-dimensional distribution and variation of moisture content of boxed-heart square timber of Pinus densiflora was investigated to find the safe and rapid drying methods. As results, microwave-drying method could dry the boxed-heart square timber with sectional dimension of $150{\times}150mm$ under 10% moisture content (MC) within 72 hours with less surface checks, compared with hot-air drying. In case of microwave drying, the MC distribution during drying had a close relation with the initial MC distribution. In case of hot air drying, however, it was independent on the intial one except for the intial drying stage.

A Negotiation Model for Providing Optimized Service in M2M Environment (M2M 환경에서 최적화된 서비스 제공을 위한 협상 모델)

  • Lee, Suk-Hoon;Kim, Jang-Won;Lee, Chong-Hyeon;Jeong, Dong-Won;Baik, Doo-Kwon
    • Proceedings of the Korean Information Science Society Conference
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    • 2011.06d
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    • pp.68-71
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    • 2011
  • 사물 지능 통신(M2M)은 다양한 통신 기기들 간 서로의 정보를 인식하고, 교환, 및 공유하기 위한 기술이다. 최근 스마트폰 열풍에 힘입어 사물 지능 통신 환경에서 스마트폰을 이용한 서비스 제공에 대한 연구가 활발히 진행 중이다. 이 논문은 사물 지능 통신 환경에서 스마트폰을 사용하는 사용자에게 최적화 된 서비스를 제공하기 위하여, 지능형 단말기와 서버간의 협상 모델을 제안한다. 협상 모델은 4단계로 구성되며 지능형 단말기와 지능형 서버 간 접속, 협상, 서비스 검색과 추론, 서비스 제공의 절차를 거친다. 마지막으로, 이 모델에서 사용하는 온톨로지와 메시지 유형을 정의하고 시스템 구조를 설계하고, 시나리오를 통하여 제안하는 협상 모델의 구체적인 동작 과정을 보인다.

Chemical Composition of the Rice Germ from Rice Milling and its Oil Stability during Storage (쌀 도정시 분리되는 쌀눈의 일반성분과 저장 중 유지 안정성)

  • Shin, Dong-Hwa;Chung, Chong-Ku
    • Korean Journal of Food Science and Technology
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    • v.30 no.1
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    • pp.241-243
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    • 1998
  • The chemical composition of rice germ, a by product of rice milling, was analyzed and its oil stability was evaluated by acid value and Rancimat method during storage. The predominent components of the germ were carbohydrate (36.5%). crude lipid (21.6%) and crude protein (18.7%). The time taken to double the acid value was 2 days for common rice germ, while it took 31 days to increase 1.15 times for rice germ dried at $80^{\circ}C$ for 6 hours. Induction periods of the lipid oxidation from common or dry germ stored at different temperature were not significantly different.

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