• Title/Summary/Keyword: 외피

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Accumulation of Crude Lipids, Phenolic Compounds and Iron in Rusty Ginseng Root Epidermis (적변삼 외피에서 지질, 페놀성물질 및 철 성분의 축적에 관한 연구)

  • Lee, Tae-Su;Mok, Sung-Kyun;Cheon, Seong-Ki;Yoon, Jong-Hyuk;Baek, Nam-In;Choe, Jyung
    • Journal of Ginseng Research
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    • v.28 no.3
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    • pp.157-164
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    • 2004
  • The study was conducted to investigate the tissue and chemical characteristics of rusty root epidermal cells. In histological study, the rusty symptoms were frequently observed in the epidermis of ginseng root and to be yellow under microscopic observation. Disks of the epidermal cell tissue of the rusty root were usually 2 and 3 times greater in the number of cell layer and thickness of cell wall than the healthy root, respectively. The color degree of methanol extracts from the rusty root epidermis was 5.5 times higher than that of the healthy root. And the extracts of rust matter in the root epidermis were easily dissolved in polar solvents compared to nonpolar solvents. UV-absorption spectra of methanol extracts in various fractions of phenolics showed a maximum peak between 275∼280 nm. The crude lipids and phenolic compounds such as acid insoluble bound phenolics, acid insoluble esterified phenolics, acid insoluble condensed phenolics, insoluble bound phenolics and free phenolics were also more in the rusty root epidermis than in the healthy one. Fe content in the rusty root epidermis was 2.7 times higher than that of healthy one. It was presumed that the phenolic compounds(precursor of the rusty) in association with lipid and iron in the root epidermis might defence the root when ginseng root was depressed by the unfavorable conditions in soil and/or portions of a root system were subjected to anoxic conditions.

A Study on the Skin Construction of 『Prada Aoyama Tokyo』 through the Functional Relation of Structure-Skin (『Prada Aoyama Tokyo』의 외피구축 특성과 구조-외피의 관계)

  • Shin, Ye-Kyeong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.10
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    • pp.5206-5214
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    • 2013
  • Herzog & de Meuron have been tried to diverse skin construction process and effects on their lots of projects. The purpose of this study is an understanding of the characteristics on a skin construction of "Prada Aoyama Tokyo". The results of this study are as follows. First, Skin is an element for impacting inside spatial sense by accommodating relationship between structure and skim. And skin is not only something for expression but also spatial matter. Especially their principal of building form is an effects by relationship between structure and skin.

Quality Characteristics of Cream Soup Added with Pomegranate Cortex Powder (석류 외피 분말을 첨가한 크림수프의 품질 특성)

  • Park, Kyong-Tae
    • Culinary science and hospitality research
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    • v.16 no.4
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    • pp.230-237
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    • 2010
  • This study examines the quality characteristics of cream soup added with pomegranate cortex powder(0~0.8%). As for the proximate composition, the control group had significantly(p<0.05) higher moisture content than the PGCP samples; however, crude ash decreased with increasing PGCP content The PGCP samples presented significantly(p<0.05) higher viscosity of the control group. As the PGCP content increased, pH decreased. As for the color, Hunter L value increased with dark color while a value decreased with the PGCP content increased. b value decreased in the group added with 0.8% of PGCP content In terms of sensory evaluation, color, flavor decreased with the PGCP content increased. Viscosity was high in the group added with 0.4% of PGCP content Overall acceptability was the highest in the group added with 0,2% of PGCP content while bitterness, astringency, bitterness, and off-flavor increased. There were no significant(p>0.05) differences in creamness of the cream soup among the samples. In conclusion, the results indicate that the addition of 0.2% PGCP to cream soup is desirable for quality and provides good physiological properties to the products.

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A Experimental Study on the Flame Retardant for Cover and Material of Electric Pad (전기장판 외피 및 부자재의 난연성에 관한 실험연구)

  • Hong, Sung-Ho;Choi, Moon-Soo;Park, Sang-Tae;Baek, Dong-Hyun
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2012.04a
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    • pp.15-18
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    • 2012
  • 본 논문은 전기장판에 사용되는 외피 및 부직포 등의 부자재에 대하여 UL 94 등의 난연성 시험방법에 따라 실험을 수행하고 난연성을 분석한 연구이다. 전기장판의 난연성을 분석하기 위하여 전기장판의 종류를 두께가 두꺼운 전기매트, 외피가 PVC 등으로 구성된 비닐전기장판, 외피가 천으로 구성된 전기요로 구분하여 전기장판에 사용되는 외피 및 부직포 등에 대하여 난연실험을 수행하였다. 그 결과 전기장판에 사용되는 외피 및 부직포 등의 부자재는 난연성능이 없는 것으로 나타났다.

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Investigation of thermal deformation of wing skin induced by temperature gradient (온도 구배에 의한 날개 외피의 열변형 특성 연구)

  • Kim, Jeong-Beom;Kim, Hong-Il;Kim, Jae-Young
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.43 no.10
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    • pp.896-901
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    • 2015
  • The skin-frame type structure is designed to investigate the thermal deformation of the wing skin induced by the temperature gradient. In order to effectively simulate the temperature gradient on the wing specimen, a water cooling system is devised on the frame of the specimen. Out of surface skin deformation of the skin-frame type structure made of SUS304 material with respect to the temperature is successfully measured using the digital image correlation (DIC) technique including quantitative evaluation of the measurement uncertainty.

Complementary DNA Cloning and nucleotide Sequence Analysis of Coat Protein Gene from TMV Pepper Strain (고추에서 분리된 담배 모자이크 바이러스 외피단백질 유전자의 cDNA 클로닝 및 염기서열 분석)

  • 이영기;이청호;강신웅;박은경
    • Korean Journal Plant Pathology
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    • v.12 no.2
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    • pp.182-186
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    • 1996
  • 국내에서 재배되고 있는 고추(Capsicum annuum L.)로부터 분리된 TMV pepper 계통을 density gradient centrifugation을 이용하여 순화하였다. 이로부터 바이러스의 total RNA를 분리하였고 RT-PCR에 의하여 TMV pepper 계통의 외피단백질 cDNA를 합성, 증폭하였으며 이를 pBluescript II SK- 벡터에 재조합하였다. 본 실험에서 바이러스 외피단백질과 3` non-coding region을 포함하는 재조합 클론 p1561과 p1562로부터 염기서열을 분석하였고 그 결과로 477 염기의 외피단백질 유전자를 포함하는 691 염기가 합성되었음을 확인하였으며 이것과 TMV common 계통으로부터 합성된 외피단백질 cDNA와의 최대 유사도는 69%였다. 또한 유추된 아미노산 서열에서 이들 두 계통간의 최대 유사도는 81%였다.

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A Study on Analysis Method for Performance Evaluation of Double-leaf facade of Office Building (업무용 건물의 이중외피 성능평가를 위한 해석기법의 고찰 - 이중외피 설계안의 에너지 저감 성능 및 환기성능을 중심으로 -)

  • Chung, Hwan-Kyo;Chung, Kwang-Seop;Lee, Yong-Jun;Shin, Seung-Chul;Kim, Young-Il
    • Journal of Energy Engineering
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    • v.21 no.2
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    • pp.168-178
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    • 2012
  • The objective of this study is applied to office buildings to evaluate quantitative evaluation method about performance of double-skin at design stage to establish the basis for the purpose of evaluation performance. Select the evaluation building about design plan for applying the double-skin using the dynamic heat load analysis program the annual heating and cooling load of before and after the double-skin. Using CFD to analyze wind factor and applied ventilation for realistic results. Effects of double-skin to apply, and control techniques that can be done more realistically proposed through to set and control for shade control mode of ventilator and inside cavity wall of double-skin. Apply for the building the double-skin due to interpretation of the annual heating and cooling loads applied to interpret the quantitative effect confirmed the possibility. According to the form of a double skin was confirmed cavity environmental changes.

Quality Characteristics of Korean Wheat Wet Noodles with Pomegranate Cortex Powder (석류외피 분말을 첨가한 우리밀 생면의 조리 특성)

  • Park, Kyong-Tae;Kim, Mun-Yong;Chun, Soon-Sil
    • Culinary science and hospitality research
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    • v.15 no.1
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    • pp.128-136
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    • 2009
  • In this study, Korean wheat wet noodles were prepared with 1, 3, 5, and 7% pomegranate cortex powder(PGCP). The samples and a control were compared in terms of quality characteristics, including cooking properties, colors, textural characteristics, and sensory evaluation in order to determine the optimal ratio of PGCP in the formulation. With regard to the cooking properties, weight, volume, and water absorption decreased with PGCP content increased. As for colors, the PGCP content L, a, b value increased. For the textural characteristics, springiness and cohesiveness were not significantly different among the samples. The PGCP samples had significantly higher hardness, chewiness, brittleness, and gumminess than the control group. However, strength showed the reverse effect. In the sensory evaluation, the control group had significantly higher scores in colors, texture, and chewiness as compared to the PGCP samples. Overall acceptability decreased with PGCP content increased while bitterness, astringency, and off-flavor increased. Furthermore, saltiness and gumminess were not significantly different among the samples. In conclusion, the results show that 1% of PGCP was proved very useful as a substitute for Korean wheat flour in the production of wet noodles, providing good nutritional and functional properties.

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A Study on Fire Features of Double-Skin Facade Structure by Using Fire Simulation (FDS) (화재 시뮬레이션(FDS)을 이용한 이중외피 구조의 화재 특성에 관한 연구)

  • Gu, Seon-Hwan;Kim, Hyun-Ho;Song, Young-Joo
    • Fire Science and Engineering
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    • v.28 no.1
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    • pp.1-11
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    • 2014
  • This study aims to address the fire characteristics of Double-skin facade using the Fire Dynamics Simulator (FDS). To end this, Double-skin facade was classified into the four structures, that is Box, Shaft-box, Corridor, Multistory, through PyroSim program which was based on FDS, and further each structure of fire characteristics were analyzed numerically as well as comparatively in the current study. This study also examined smoke movement, smoke density, smoke detectors, and visibility in order to closely identify the each structure of fire characteristics. The results of the study discovered that the Box structure did not significantly affect smoke which was rising in the other rooms, except for the fire room whereas the Corridor structure had positive effects on Double-skin facade horizontally. In addition, the Shaft-box structure showed the fastest vertical movement by means of the shaft, on the other hand, rising smoke influenced the other rooms as well. The Multistory structure along with rising smoke had a great impact on the other divided rooms in a vertical way.

A Study on Constructive Characteristic of Media in the Surface of Contemporary Architecture -Focused on Codification and Seriality of de Young Museum and Walker Art Center (현대건축의 외피에 나타난 매체적 구축 특성에 관한 연구 -디 영 뮤지엄과 워커 아트센터에 나타난 코드화와 시리얼화를 중심으로-)

  • Jeon, You-Chang;Kim, Sung-Wook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.12 no.5
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    • pp.2416-2424
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    • 2011
  • This study focused on the transition from modularity of a mechanical construction system to the seriality in a digital production system in architecture and arguing how digital design process affects the design of surface in the contemporary architecture and development of digital technology actively intermediate surface of architecture and expressive characteristics of media on surface. The analysis of two exhibition facilities of Herzog & de Meuron expose process of fabrication in the surface design and makes possible to implementation of the concept of code to seriality which shows images employed to reveal immediate representation of the perceptual communication with humans and architecture through the role and significance of digital design techniques.