• 제목/요약/키워드: Lab

검색결과 14,254건 처리시간 0.052초

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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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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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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유산균의 항산화 활성 비교 (Comparative Study of Lactic Acid Bacteria for Antioxidative Activities)

  • 조윤희;오세종
    • Journal of Dairy Science and Biotechnology
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    • 제28권2호
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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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유비쿼터스 기반의 홈 오토메이션 (Home Automation System based on Ubiquitous)

  • 이정익
    • 한국산학기술학회논문지
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    • 제10권11호
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    • pp.3039-3042
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    • 2009
  • 본 연구에서 개발한 홈 자동화 시스템은 임베디드 시스템에 LabVIEW PDA 모듈을 사용해 원거리 제어가 가능하고, PDA 장비 프로그래밍이 가능한 데모 장비이다. 모든 작동 프로그램은 LabVIEW로 이루어져 있다. 또한, 각 임베디드 시스템은 개인용 PC와의 배선 없이 스스로 동작하는 모드로 이루어져 있다. 이 홈 자동화 시스템은 무선 랜(802.11b)을 통한 PDA의 LabVIEW에 의해서 통제된다.

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

  • 김주은;최남섭;한병문
    • 전력전자학회논문지
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    • 제17권1호
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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.