• Title/Summary/Keyword: Lab

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The Novel Preparation of White Pigment by Functionalized Wax Coating of $TiO_2$ for Electrophoretic Display

  • Joung, Meyoung-Ju;Kim, Mi-Kyung;Kim, Chul-Am;Ahn, Seong-Deok;Lee, Yong-Eui;Kang, Seung-Youl;Suh, Kyung-Soo;Kim, Chul-Hwan
    • 한국정보디스플레이학회:학술대회논문집
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    • 2002.08a
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    • pp.828-830
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    • 2002
  • In this study, we have investigated a simple process of preparation of white pigment particles by physical coating with functionalized wax for the electrophoretic display. We will discuss, especially, the implementation of bistable pigment providing high mobility by using unique charge control agent and also optical properties of wax coated $TiO_2$ particles.

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Comparative Study of Lactic Acid Bacteria for Antioxidative Activities (유산균의 항산화 활성 비교)

  • Cho, Yoon-Hee;Oh, Se-Jong
    • Journal of Dairy Science and Biotechnology
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    • v.28 no.2
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    • pp.31-39
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    • 2010
  • Lactic acid bacteria (LAB) are typical probiotic microbes which are used in various industries including fermented foods, feed additives, and pharmaceuticals. The purpose of this study was to compare the ability of antioxidative activities of 23 strains of LAB isolated from cheese, kimchi, yogurt, and etc. LAB were tested for antioxidative activities such as 2,2'- azino-bis(3-ethyl-benzothiazoline-6-sulphonic acid) (ABTS) radical scavenging abilities and superoxide dismutase (SOD)-like ability. Antioxidative activities were examined different media such as MRS, M17, and 10% skim milk. Culture supernatant in M17 medium showed a higher antioxidative activity than these in MRS and 10% skim milk. Comparison of ABTS radical scavenging ability by the LAB showed a wide variation with a range from 9~93% and SOD-like ability of LAB ranged from 70~78%, respectively. Therfore, some of LAB can play important roles in the protection for oxidative stress and CPP-producing activity of LAB may be a promising material for application in the dairy industry.

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Home Automation System based on Ubiquitous (유비쿼터스 기반의 홈 오토메이션)

  • Lee, Jeong-Ick
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.11
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    • pp.3039-3042
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    • 2009
  • Home automation system is a demo which is capable of remote monitoring and control on PDA device (which was) programming used by LabVIEW PDA module in embedded system. Every operation program is composed of LabVIEW. And each embedded system is made of self-operating mode without any wiring of PC. This home automation system is controlled by LabVIEW of PDA through Wireless LAN(802.11b).

Power Electronics Converter Education Program using LabVIEW (LabVIEW를 이용한 전력전자 컨버터 교육 프로그램)

  • Kim, Ju-Eun;Choi, Nam-Sup;Han, Byung-Moon
    • The Transactions of the Korean Institute of Power Electronics
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    • v.17 no.1
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    • pp.48-56
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    • 2012
  • This paper deals with power electronic converter education program using LabVIEW. LabVIEW is a graphic based programming language with easy debugging, which is suitable for education program that can be used to study and figure out the operation of power electronic converters. When LabVIEW is employed as a simulation program of the operation of power electronic converters, the resulting program has the advantage such that the effects of the change of control variables and circuit parameters on the various variables such as the output voltage and the inductor current etc can be directly displayed without any separate compiling procedure. This paper shows the design procedure and the characteristics of the power electronics education program implemented by LabVIEW focusing on DC-DC converter among power electronic converters.