• Title/Summary/Keyword: Eco-friendly Technology

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Develop ECO-FREE high concentration Full black dye using transfer printing and application technology (전사날염용 ECO-FREE 고농도 Full Black 염료개발과 응용기술)

  • Cho, Ho-Hyun;Chung, Myung-Hee;Lee, A-Ram
    • Journal of the Korea Fashion and Costume Design Association
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    • v.19 no.2
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    • pp.39-48
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    • 2017
  • Transfer printing is a method to combine printing and dyeing technology by the use of sublimation. It is an environmentally-friendly printing method that saves costs, reduces the production processes by the omission of the washing process, and saves time by maintaining quality. Due to the development of transfer printing, a high value added printing technology is available now but color fastness to sublimation of the printing products is still low since there are few dyes that have an affinity to the fabrics and the application technology is still inadequate. Specially, in case of high concentration black dyes, eco-label type black dyes, which is a substitution for general dispersal dyes, have been developed while general dispersal black dyes are still used, creating issues such as color differences on the surface and back side of the fabrics and contamination by friction after transfer printing. There are also some restricted substances such as allergens. To address these issues, high concentration black dyes and application technology that are environmentally-friendly and that have over 16 K/S through the use of single dyes with excellent color fastness, fixation ability, and similar melting temperature were developed for this study.

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Nematicidal Activity of Streptomyces flavogriseus KRA15-528 to Meloidogyne incognita (Meloidogyne incognita에 대한 Streptomyces flavogriseus KRA15-528의 살선충활성)

  • Oh, Mira;Han, Jae Woo;Choi, Jung Sup;Choi, Yong Ho;Jang, Kyoung Soo;Choi, Gyung Ja;Kim, Hun
    • Research in Plant Disease
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    • v.22 no.4
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    • pp.227-235
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    • 2016
  • Plant disease caused by root-knot nematode is a major problem in crop production. Using of chemical pesticides, one of the most efficient methods to control nematodes, have raised issues in toxicity to humans and animals and environmental pollution. In this study, to select actinomycete strains that have potential to serve as a microbial agent for control of nematodes, we investigated nematicidal activity of culture broth from 670 Streptomyces isolates. A culture filtrate of KRA15-528 isolate that was identified as S. flavogriseus on the basis of 16S rRNA sequence analysis, showed strong nematicidal activity against second stage of juveniles of Meloidogyne incognita and inhibited egg hatching; exposure to 10% of culture filtrate resulted in 71% juvenile mortality at 48 hours afters treatment and suppressed egg hatching by 54% at 9 days after treatment. When the KRA15-528 culture filtrate was partitioned with ethyl acetate and butanol, ethyl acetate layer exclusively showed strong activity; 91%, 53%, 30% of mortality at 1,000, 500, $250{\mu}g/ml$, respectively. Additionally, the culture filtrate suppressed gall formation on cucumber plant by M. incognita with no phytotoxicity. These results suggest that S. flavogriseus KRA15-528 has potential to serve as a microbial nematicide for the control of root-knot nematode disease.

A Study on the Implementation of Ubiquitous Technology for Residential Space (주거 공간의 유비쿼터스 기술 적용에 관한 연구)

  • Han, Seung-Hoon;Oh, Se-Kyu
    • Journal of the Korean Solar Energy Society
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    • v.27 no.4
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    • pp.147-155
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    • 2007
  • It is essential to investigate the structure and the main characteristic of Home USN (Ubiquitous Sensor Network) technologies in built ubiquitous environment while designing future residential space. For this study, three different housing types have been selected to implement ubiquitous technologies for residential space; those are regular, elderly, and single residence units. It is certain that efficiency of ubiquitous home design is improved if main components of each specific housing type are analyzed precisely in digital way and design models are prepared accordingly. Ubiquitous technology, in conclusion, has to be applied not on)r with systematical mechanism or electronic setting but in human-centered atmosphere as well, keeping with deep consideration for bio-housing service factors in eco-friendly surrounding; we call this Ubiquitous Humanism.