• Title/Summary/Keyword: Natural

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An Analysis of the Ecology Fabric Trend : 20 Years (1986-2005) of S/S Woven Fabric Trends

  • Kim, Dong-Woon;Park, Chung-Bee
    • International Journal of Costume and Fashion
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    • v.10 no.1
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    • pp.29-45
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    • 2010
  • In order to provide more systematic approach to analyze fabric trends and to develop fabrics accordingly, ecology fabric trend from 1986 to 2005 was analyzed related with fabric trend themes and fabric attributes. The result shows that in the 1980s, natural theme appeared, followed by primitive theme and imitated natural theme until the mid 1990s. From the late 1990s to the early 2000s, new natural theme appeared, followed by eco-friendly theme, and then recycling theme. In the natural theme, 'clean' was the most important fabric attribute and 'textured' and 'worn' were important fabric attributes in the primitive theme. In the imitated natural theme, 'wet' fabric attribute was preferred. In the new natural theme, 'lightweight' were preferred. The results of this study empirically demonstrated that abstract and ambiguous trend terms can be interpreted with a physical, substantial, and feasible attributes that fabric practitioners can easily understand.

The Effects of Different Cross Section on Natural Frequency of the Advanced Composite Materials Road Structures (복합신소재 도로구조물의 변환단면이 고유진동수에 미치는 영향)

  • Han, Bong Koo
    • International Journal of Highway Engineering
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    • v.15 no.3
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    • pp.23-29
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    • 2013
  • PURPOSES: This paper aims to give a guideline and the way to apply the advanced composite materials theory to the road structures with different cross sections to the practicing engineers. METHODS: To simple but exact method of calculating natural frequencies corresponding to the modes of vibration of road structures with different cross sections and arbitrary boundary conditions. The effect of the $D_{22}$ stiffness on the natural frequency is rigorously investigated. RESULTS: Simple method of vibration analysis for calculating the natural frequency of the different cross sections is presented. CONCLUSIONS: Simple method of vibration analysis for calculating the natural frequency of the different cross sections is presented. This method is a simple but exact method of calculating natural frequencies of the road structures with different cross sections. This method is extended to be applied to two dimensional problems including composite laminated road structures.

Interactions of Lysozyme with Phospholipid Liposmes

  • Jung, Kyoung-Ok;Kim, Mi-Young;Jeong, In-Cheol;Kim, Andre;Kim, Do-Hui;Kang, Shin-Won;Park, Jang-Su
    • Journal of Photoscience
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    • v.7 no.2
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    • pp.63-66
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    • 2000
  • A study of the interaction between lysozyme and phospholipid liposomes is essential for a systematic approach for understanding the action mechanism of lysozyme. So we want to clarify the interactions of lysozyme with phospholipid liposmes. We observed that lysozyme more interacts with negatively charged liposomes than with neutral liposome. More hydroxy groups of the phospholipid was very important on that interactions. We recognized the importance of electrostatic interactions in the process of fusion induced by lysozyme. As indicated by UV/Vis experiments, leakage and fusion are two uncoupled process.

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A Monoacyldigalactosyl Glycerol from the Green Alga Enteromorpha prolifera

  • Kim, Ju-Sun;Shim, Sang-Hee;Lee, Sang-Hyun;Chae, Sung-Wook;Han, Sang-Jun;Kang, Sam-Sik;Lee, Yeon-Sil;Jung, Sang-Hoon;Shin, Kuk-Hyun
    • Natural Product Sciences
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    • v.10 no.6
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    • pp.341-343
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    • 2004
  • A monoacyldigalactosyl glycerol was isolated from the $CH_2Cl_2$ soluble fraction of the MeOH extract from the green alga Enteromorpha prolifera. The structure was established as $1-O-palmitoyl-3-O-[{\alpha}-D-galactopyranosyl(1{\rightarrow}6)-{\beta}-D-galactopyranosyl]-sn-glycerol$ (1) by chemical and spectroscopic methods.

The Artistic Hat Applying Natural Resources and Innovative Materials

  • Kim, Hye-Kyung;Lee, Yoon-Jee
    • Journal of Fashion Business
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    • v.5 no.5
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    • pp.65-76
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    • 2001
  • The hat is the most flexible human head covering. Almost entirely enveloping the hair, it can be simple, pure, elegant and mysterious. Yet it is frequently a highly decorative form of dress. The hat also takes a part in the extension of the area of art as soft-sculpture. My purpose of this thesis is to present diverse artistic hats with natural images by nontraditional materials and natural resources. The reason why I select nature as them is that it is absolutely the origin of life and art. To develop the innovative hat design, I focus on the material to extend the range of art expression. I observe nontraditional materials such as wire, paper and so on that enhance heterogenetic feeling from natural images. The attempt is made to enhance the visual effect by harmonizing the disharmonious feeling. Natural resources such as moss, orange, feather and so on could be adapted to the hat and applied for unique design, which supplies new expression. Therefore, the harmony of natural images and natural resources could avoid dullness, bestow elegance and polish the unique beauty creation of the hat.

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Potential Use of Biopolymer-based Nanocomposite Films in Food Packaging Applications

  • Rhim, Jong-Whan
    • Food Science and Biotechnology
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    • v.16 no.5
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    • pp.691-709
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    • 2007
  • Concerns on environmental waste problems caused by non-biodegradable petrochemical-based plastic packaging materials as well as consumer's demand for high quality food products has caused an increasing interest in developing biodegradable packaging materials using annually renewable natural biopolymers such as polysaccharides and proteins. However, inherent shortcomings of natural polymer-based packaging materials such as low mechanical properties and low water resistance are causing a major limitation for their industrial use. By the way, recent advent of nanocomposite technology rekindled interests on the use of natural biopolymers in the food packaging application. Polymer nanocomposites, especially natural biopolymer-layered silicate nanocomposites, exhibit markedly improved packaging properties due to their nanometer size dispersion. These improvements include increased mechanical strength, decreased gas permeability, and increased water resistance. Additionally, biologically active ingredients can be added to impart the desired functional properties to the resulting packaging materials. Consequently, natural biopolymer-based nanocomposite packaging materials with bio-functional properties have huge potential for application in the active food packaging industry. In this review, recent advances in the preparation and characterization of natural biopolymer-based nanocomposite films, and their potential use in food packaging applications are addressed.

Biologically active compounds from natural and marine natural organisms with antituberculosis, antimalarial, leishmaniasis, trypanosomiasis, anthelmintic, antibacterial, antifungal, antiprotozoal, and antiviral activities

  • Asif, Mohammad
    • CELLMED
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    • v.6 no.4
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    • pp.22.1-22.19
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    • 2016
  • The biologically active compounds derived from different natural organisms such as animals, plants, and microorganisms like algae, fungi, bacteria and merine organisms. These natural compounds possess diverse biological activities like anthelmintic, antibacterial, antifungal, antimalarial, antiprotozoal, antituberculosis, and antiviral activities. These biological active compounds were acted by variety of molecular targets and thus may potentially contribute to several pharmacological classes. The synthesis of natural products and their analogues provides effect of structural modifications on the parent compounds which may be useful in the discovery of potential new drug molecules with different biological activities. Natural organisms have developed complex chemical defense systems by repelling or killing predators, such as insects, microorganisms, animals etc. These defense systems have the ability to produce large numbers of diverse compounds which can be used as new drugs. Thus, research on natural products for novel therapeutic agents with broad spectrum activities and will continue to provide important new drug molecules.