• Title/Summary/Keyword: qualities

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The Physicochemical Properties and Cooking Qualities of Barley (보리의 이화학적 특성과 취반성에 관한 연구)

  • 장학길;정일희
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.5
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    • pp.816-821
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    • 1994
  • The physicochemical properties and cooking qualities of six cultivars of covered barley, four malting barley and six naked barley were investigated. The 1, 000 kernel weight was heavier in the malting barley and ash content was the highest in covered barley. The varietal variation of amylose content was 17.7 to 20.2%. $\beta$-Glucan viscosity was generally lower in the malting barely, and varied greatly among barley cutivars with 2.16 to 8.47 cSt. The pearling rate was highest in naked barley with a mean of 75.5% and protein content of aw and pearled barely was significantly different with cultivars. In the cultivars tested, Doosan 8, Youngsan and Iri 5 showed the higher milling rate. Amylose patterns showed that the covered barley cultivars has lower gelatinization temperature and higher peak height and height at 50 $^{\circ}C$ than the malting and naked barley. The water absorptions were highest in covered barley cultivars , and lowest in naked barley cultivars. The soluble solid was highest in naked barley cultivars.

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Growth of Sapphire Crystals by Verneuil Method (Verneuil법에 의한 Sapphire단결정 성장)

  • Joo, K.;Bae, S.Y.;Choi, J.K.;Orr, K.K.;Son, S.K.;Beun, Y.J.;Chun, H.T.
    • Journal of the Korean Ceramic Society
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    • v.25 no.5
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    • pp.495-501
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    • 1988
  • Verneuil method uses oxyhydrogen flame for its heat source. This method was used to grow corundum monocrystals. Parametersof this method are feeding rate, gas pressure, lowering rate and growth axis. These parameters were examined. Crystals's qualities and shapes are affected by these parameters. Crystals having good qualities and shape were grown under the conditions that feeding rate, 0.2∼0.5g/min, lowering rate, 10∼20mm/hr ; gas pressure, 3∼4psi ; growth axis was shifted 60 degrees from c axis.

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Graphene: an emerging material for biological tissue engineering

  • Lee, Sang Kyu;Kim, Hyun;Shim, Bong Sup
    • Carbon letters
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    • v.14 no.2
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    • pp.63-75
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    • 2013
  • Graphene, a carbon crystal sheet of molecular thickness, shows diverse and exceptional properties ranging from electrical and thermal conductivities, to optical and mechanical qualities. Thus, its potential applications include not only physicochemical materials but also extends to biological uses. Here, we review recent experimental studies about graphene for such bioapplications. As a prerequisite to the search to determine the potential of graphene for bioapplications, the essential qualities of graphene that support biocompatibility, were briefly summarized. Then, direct examples of tissue regeneration and tissue engineering utilizing graphenes, were discussed, including uses for cell scaffolds, cell modulating interfaces, drug delivery, and neural interfaces.

A Study on Unit Plan of the New Trend Apartment Housing (공동주거유형의 다양화에 관한 사례조사 연구)

  • 권철범;김용성
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2000.11b
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    • pp.85-89
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    • 2000
  • After 1980's, the progress in quantities of apartments were made by the housing construction expediting policies. But, the qualities of apartments were neglected and the plan of apartments were uniformed by the economical aspects. Apartment unit plans were designed standardized by the reasons of economical efficiency, structural methods and sales. Therefore apartments could not deal effectively with increasing demands for qualities of the residents. Absence of aesthetical values and fixed unit plans on regardless of the residents family compositions and the size of the apartments were occurred. So the new types of the apartment plans are needed to suit the changes and diversities of living. The purpose of this study is to extract the design factors for future apartment by analyzing the unit plans of apartment housings today.

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Microbiological and Organoleptic Qualities of Boiled-Dried Anchovies during Post-Irradiation Period (감마선 조사 건멸치의 미생물학적 및 관능적 품질안정성)

  • 권중호;변명우;김정숙
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.25 no.2
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    • pp.283-287
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    • 1996
  • 건멸치의 품질안정성 연구를 위하여 접합필름(nylon $15\mu\textrm{m}/polyethylene$ $100\mu\textrm{m})으로$ 포장된 시료에 감마선을 조사한 다음 상온과 $저온(5~10^{\circ}C)에$ 1년간 저장하면서 미생물학적 및 관능적 품질을 평가하였다. 건멸치에 오염된 미생물의 방사선감수성은 위생지표 미생물>호염성세균>효모 및 곰팡이의 순으로 나타났으며, 5kGy 범위의 감마선 조사는 저온 및 상온에서도 미생물학적 품질을 1년 이상 유지할수 있었다. 관능적품질에 있어서 시료의 겉모양(갈변)과 맛 기호성은 10kGy의 고선량 조사시 대조군보다 유의적으로 저하되었다(p<0.05). 접합필름 포장시료를 5kGy 조사하여 상온과 저온에 1년간 저장하였을 때 관능적 품질은 저장온도별로 유의적인 차이가 나타났으며(p<0.01), 상온에서는 6개월 이상, 저온에서는 1년 이상 상품성 유지가 가능하였다.

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Quality Characteristics of Jook Prepared with Green Laver Powder (파래 분말을 첨가한 죽에 관한 품질 특성)

  • Lee, Mi-Kyoung;Choi, Sang-Ho;Lim, Hong-Sik;Ahn, Jong-Sung
    • Korean journal of food and cookery science
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    • v.26 no.5
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    • pp.552-558
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    • 2010
  • This study was performed to provide basic data on the use of green laver for jook. To accomplish this, we tested water content, color, brightness, mechanical qualities and sensory qualities in comparison to a control group. Higher concentration of green laver powder decreased water content, lightness, redness, viscosity and pH. Further, higher concentration of green laver resulted in lowered preference regarding appearance. However, better flavor was with the result of a higher amount of green laver. Therefore, green laver seems to have benefits for use in oriental soup. Accordingly, we expect there is potential for use of green laver for jook.

Investigation of Deep Drawability and Product Qualities of Ultra Thin Beryllium Copper Sheet Metal (베릴륨동 극박판의 드로잉 성형성과 품질특성 연구)

  • Park, S.S.;Hwang, K.B.;Kim, J.B.;Kim, J.H.
    • Transactions of Materials Processing
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    • v.19 no.3
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    • pp.179-184
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    • 2010
  • The present study is focused on the deep drawability and product qualities of ultra thin beryllium copper sheet metal. The goal of this research is to investigate the limit drawing ratio in deep drawing of ultra thin beryllium copper metal. For the experiment, beryllium copper(C1720, $50{\mu}m$ in thickness) is used. Tensile test are also carried out to find out the material properties. Deep drawing experiments are carried out in Universal Testing Machine(UTM) to obtain limit drawing ratio. Deep drawing tests are carried out for various specimen sizes. Teflon film is used as a lubricant and constant blank holding force is imposed. Sheet thickness and surface hardness are measured along radial direction after deep drawing. Thickness is measured using optical microscope. For beryllium copper(C1720), the maximum LDR of 2.4 is obtained when the die shoulder radius is 20 or 30 times of sheet thickness.

Qualities of Concrete Using Recycling Water with the Kinds and Contents of Saccaric Based Stabilizing Agent (당류계 안정화제 종류 및 혼입률 변화에 따른 회수수사용 콘크리트의 품질특성)

  • Jin, Hu-Lin;Kim, Kyung-Min;Woo, Jong-Wan;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korea Concrete Institute Conference
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    • 2004.05a
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    • pp.660-663
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    • 2004
  • This paper investigate the qualities variety of concrete using recycling water under various kinds and contents of saccaric based stabilizing agent(SSA). Fluidity had little changes with the kinds and contents of SSA. Air contents of concrete with recycled water only shows the tendency. With an increase in SSA contents, air content recovered. For bleeding properties, bleeding shows to be decreased with an increase in SSA contents. The use of recycled water accelerated the setting time. However, with an increase in SSA, setting time showed the similar level of plain concrete. SSA (Btype) had better performance in enhancing compressive strength owing to loss of air content. Although the use of recycled water increased the drying shrinkage compared with that of plain concrete, it tended to decrease with an increase in SSA.

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A Study on the Spacial Expression Characteristics of Koreaness in Contemporary Interior Design (현대 실내디자인에 나타나는 한국성의 공간적 표현특성에 관한 연구)

  • Lee, Joo-Hye
    • Korean Institute of Interior Design Journal
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    • no.34
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    • pp.20-28
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    • 2002
  • Tradition is defined as cultural qualities of a regional social group a race, which is transmitted from generation to generation through history. Its contents include human behavior as well as the outcomes from the human behavior and a culture is materialized by means of fullfil fundamental aspiration, in order to co-exist human being and society.This research has considered an architectural space which both show a Korean traditional architecture and modern architectural space, incliding Korean nature under a sort of cultural expression.Also, expressive qualities which are shown within a space as a medium, there is more consideration of method to embody Korean nature into an interior space.There is a subject related to traditional expression of what the real essence of tradition is. In addition, it is a matter of what the method of expression is in order to accomodate, inherit and express the pulse of tradition.

Perceived Service Qualities in Cosmetics Purchasing, those Difference and Consumer Satisfaction among Store Types (화장품 구매시 지각된 서비스품질, 점포유형에 따른 차이와 고객만족도)

  • Hwang, Yeon-Soon
    • Fashion & Textile Research Journal
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    • v.8 no.4
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    • pp.449-457
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    • 2006
  • The purpose of this study was to investigate perceived service qualities in cosmetics purchasing and, those difference and consumer satisfaction among cosmetics store types. Data were collected from 276 adult females and analyzed by using frequencies, factor analysis, reliability analysis, ANOVA and duncan test utilizing SPSS WIN 10.0. The results showed that consumers perceived service quality such as reliability and responsiveness, product policy, tangibles, store atmosphere policy, business policy, sales policy to cosmetics store. There were significant differences on service quality among cosmetics store types. Consumers using department stores highly perceived factors such as reliability and responsiveness, product policy, tangibles, store and atmosphere policy, but consumers using common cosmetics store lowly perceived these factors. There were significant differences with regard to use effect and pleasure in using to satisfaction among cosmetics store types. Use effect was revealed the highest to consumers purchasing cosmetics in department stores but the lowest in discount stores. Pleasure in using was revealed the highest consumers using department stores but the lowest common cosmetics store.