• Title/Summary/Keyword: Research and Development Department

Search Result 20,382, Processing Time 0.065 seconds

Modeling buoyant surface discharges in a shallow channel with steady flow (정상흐름하 천해역 수로에서의 저밀도수 표층방출 모델링)

  • Jung, Kyung-Tae;Jin, Jae-Youll;Park, Jin-Soon;Yum, Ki-Dai;Park, Chang-Wook;Kim, Sung-Dae;Suk Yoon
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
    • /
    • 2002.08a
    • /
    • pp.191-197
    • /
    • 2002
  • The prediction of the dynamic behaviors of buoyant water discharges into a large volume of water bodies, the flows of water accompanying the density differences due to temperature differences and sometimes also to salinity differences, have attracted great concern over several decades. Heated water surface discharges from power plants and freshwater discharges in estuaries are typical examples of the buoyant flows. (omitted)

  • PDF

Research and Development of High Performance 42-inch XGA Plasma Display Panel

  • Choi, Kwang-Yeol;Min, Byoung-Kuk;Kim, Tae-Hyung;Song, Byung-Soo;Yoo, Eun-Ho;Kim, Jin-Young;Jung, Yun-Kwon;Kim, Won-Tae;Yang, Hee-Chan;Ryu, Jae-Hwa
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2004.08a
    • /
    • pp.231-235
    • /
    • 2004
  • High performance 42 inch XGA PDP with high luminance of 1,000 cd/$m^2$ has been developed using high efficient electrode structure, discharge gas and closed barrier ribs. For high speed addressing with single scan technique, address discharge time lag was reduced over 40% with FAST driving scheme and new materials. High dark room contrast ratio of 5,000 : 1 was achieved and picture quality was improved using new algorithm for eliminating false contour and improving gray level linearity.

  • PDF

The Development of Monitoring Method of Attached Micro-algae Using Artificial Substrates in Coastal Water - Ecological Risk Assessments for Oil Pollutant - (연안해역에서 인공부착기질을 이용한 부착미세조류 모니터링기법 - 유류오염의 생태위해성 평가적용 -)

  • Baek, Seung-Ho;Son, Moon-Ho;Jung, Seung-Won;Kang, Jung-Hoon;Kim, Young-Ok;Shim, Won-Joon
    • Korean Journal of Environmental Biology
    • /
    • v.30 no.1
    • /
    • pp.71-76
    • /
    • 2012
  • Spills of $M/V$ Hebei Spirit on $7^{th}$ December 2007 caused a seriously damage to the ecosystem of Korean coast. Of these, microbial communities (i.e., attached benthic micro-algae) were reported to be sentive to the environmental change so it can be used for ecological risk assessment. Our experiment was designed to examine the ecological risk assessments for oil pollutant using benthic attached algal community on the artificial substrates of acrylic plates. Field monitoring in the culture system was conducted in Jangmok Bay. The abundances of attached micro-algae on artificial substrates gradually increased with increasing of sampling times. Among them, diatoms were the most important colonizer of coastal water, with the genera $Cylindrotheca$ and $Navicular$ most abundant. In particular, developed the culture system has correctly measured qualitative and quantitative abundance of attached micro-algae because same acrylic plates as artificial substrates were used. Thus, this culture system may be directly applied to the ecological risk experiments of microbial community structure from oil pollutants.

Remote sensing and GIS technologies for route selection of 'West-East Nature Gas pipeline'

  • Zhu Xiaoge;Zhang Yaoyan;Zhang Yiming;Van Hu;Shihong Wang
    • Proceedings of the KSRS Conference
    • /
    • 2004.10a
    • /
    • pp.28-30
    • /
    • 2004
  • The West-East Nature Gas Pipeline is a great project in China. Advanced remote sensing technology combined with GIS and GPS is used to select the favorable plan from various possible routes through interpreting the information of topographic landform, regional geology, disaster geology, traffic conditions and nature environment from remote sensing images. There are a lot of changes in geographical and environmental factors along such pipelines due to the rapid development in China. Image maps produced from new satellite data can identify these changes and be used successfully not only on route-selection studies but also on in situ investigation, together with GPS. Results from detail analysis provide necessary information and parameters for plan, design and construction of the pipeline and they are also the basic data for the pipeline database. The set of techniques has been applied on planning and designing several pipelines successfully.

  • PDF

Derived of agenda priority for research and development with physical therapy technology (물리치료 기술 개발 방향 정립을 위한 세부 연구 분야 우선순위 도출)

  • Kim, Hyeong Geun;Ha, Hyun Geun;Bae, Young-Hyeon
    • Journal of Korean Physical Therapy Science
    • /
    • v.29 no.1
    • /
    • pp.15-29
    • /
    • 2022
  • Background: The purpose of this study was to suggest agenda priorities for research and development with physical therapy technology. Design: Cross-sectional study. Methods: A survey was consecutively done to 62 experts working in physical therapy research areas to investigate the priority of the categories. Paired T-tests and Importance-Performance Analysis using SPSS 21.0 package were conducted to find the differences between importance and satisfaction of the categories and the order of priority. Results: In results, it was developed that the research and development with physical therapy technology were divided with 18 categories. And the importance were significantly higher than satisfaction in 18 categories. Specifically, categories about assistive technology and robot rehabilitation were found to be on the high importance and lower performance quadrant. Conclusion: In sum, this study was meaningful in finding usage categories of research and development with physical therapy technology and investigating Importance-Performance differences for deriving research and development with physical therapy technology.

Repositioned Drugs for Inflammatory Diseases such as Sepsis, Asthma, and Atopic Dermatitis

  • Prakash, Annamneedi Venkata;Park, Jun Woo;Seong, Ju-Won;Kang, Tae Jin
    • Biomolecules & Therapeutics
    • /
    • v.28 no.3
    • /
    • pp.222-229
    • /
    • 2020
  • The process of drug discovery and drug development consumes billions of dollars to bring a new drug to the market. Drug development is time consuming and sometimes, the failure rates are high. Thus, the pharmaceutical industry is looking for a better option for new drug discovery. Drug repositioning is a good alternative technology that has demonstrated many advantages over de novo drug development, the most important one being shorter drug development timelines. In the last two decades, drug repositioning has made tremendous impact on drug development technologies. In this review, we focus on the recent advances in drug repositioning technologies and discuss the repositioned drugs used for inflammatory diseases such as sepsis, asthma, and atopic dermatitis.