• 제목/요약/키워드: TestBed

검색결과 1,626건 처리시간 0.029초

실시간 영상형성 및 원시데이터 획득용 SAR 테스트 베드 (SAR Test-bed to Acquire Raw Data and Form Real-time Image)

  • 신현익;권경일;윤상호;김형석;황정훈;고영창;유응노;김진우
    • 한국군사과학기술학회지
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    • 제20권2호
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    • pp.181-186
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    • 2017
  • Synthetic aperture radar(SAR) has been widely used for reconnaissance. It provides high-resolution, day-and-night and weather-independent images for a multitude of applications. Because SAR coherently combines many viewing angles to effectively create a large aperture(narrow beam) radar, the test-bed should be capable of moving straightly SAR sensor for the integration angle to meet resolution. This paper describes the test-bed developed to test and evaluate the SAR performance. It forms high-quality images in real time and saves the raw data for the purpose of post processing on the ground.

RDF연소를 위한 순환유동층보일러개발 (Development of Circulating Fluidized Bed Boiler for Refused Derived Fuel)

  • 배달희;선도원
    • 한국연소학회:학술대회논문집
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    • 한국연소학회 2005년도 제31회 KOSCO SYMPOSIUM 논문집
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    • pp.71-77
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    • 2005
  • Combustion of RDF and wastewater sludge was performed in a 0.1MWth bench scale circulating fluidized bed combustor(CFBC), Combustion characteristics of the RDF and sludge mixture demonstrated stable combustion conditions. Component analysis, Combustion characteristics was measured before and after the test, and applications for commercial 1MWe CFBC boiler were prepared. The release of hazardous components such as $SO_2$ and HCl was relatively low values of 50 and 150ppm, respectively.

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침대 매트리스에 대한 화재 안전성 평가 연구 (Study on Fire Safety Test Method for the Bed Mattress)

  • 박계원;정재군
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2011년도 추계학술논문발표회 논문집
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    • pp.197-200
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    • 2011
  • This study aims to inform of current situation related to fire safety performance regulation on bed mattress in domestic and foreign countries, and even to make a slight analysis report on heat release rate of bed mattress based on preliminary KICT study which has comparison data together with several items inside house.

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초고속시범망 엑세스 네트워크의 IP 서브넷 할당방식 분석 (Analysis of IP Subnet Allocation Method for Access Network in a Broadband Trial Network)

  • 이운영;임병학오채형이정수
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 1998년도 추계종합학술대회 논문집
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    • pp.11-14
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    • 1998
  • Recently, the users of internet are increasing yearly with the rapid spread of internet. So, the shortage of IPv4 address is important issue to ISP. Many ISP is searching for efficient method to use IP address in ATM Network. Korea Telecom has constructed ATM Network test-bed to verify available technologies necessary for ATM Network. This paper, concerning with the configuration of subscribers in ATM Network test bed, analyze the available usage of IP address.

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Mica2 mote를 이용한 센서 네트워크 테스트 베드 구축 (Sensor Network Test Bed Construction using mica2 mote)

  • 이윤경;박영수;전성익
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2003년도 컴퓨터소사이어티 추계학술대회논문집
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    • pp.61-64
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    • 2003
  • Technological progress in integrated, low-power, CMOS communication devices and sensors makes a rich design space of networked sensors viable. These sensors can be deeply embedded in the physical world and spread throughout sensor network environment like smart dust. So ubiquitous computing will be come true. SmartDust project is the one of ubiquitous computing approach. It produces TinyOS, mote(mica, mica2, rene2, mica2dot, etc.), NesC, TinyDB, etc. We constructs sensor network test bed and tests to approach sensor network and ubiquitous computing.

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조류에너지의 이용기술 (Development Trends of Tidal Current Energy and Its Test Bed)

  • 양창조;황태규
    • 진공이야기
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    • 제3권2호
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    • pp.11-16
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    • 2016
  • Tidal current energy is the most interesting renewable resources that have been less harnessed. Korea has globally outstanding tidal current energy resources and it is highly needed to develop a tidal current energy conversion system. It is reported that the total amount of available tidal current energy is approximately 6GW in Korea. A good tidal site candidate is required a large amount of fast moving water, bathymetry and seabed properties, no conflicts with other users and is close to a load and grid interconnection. In this review, we summarized the results of R&D projects regarding tidal current resources, utilization projects and demonstration test bed.

건조 하수 슬러지의 열분해 및 고정층 연소 특성 연구 (Pyrolysis and combustion characteristics of dried sewage sludge in a fixed bed reactor)

  • 김민수;이용운;박진제;류창국
    • 한국연소학회:학술대회논문집
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    • 한국연소학회 2014년도 제49회 KOSCO SYMPOSIUM 초록집
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    • pp.29-32
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    • 2014
  • The practical route for disposal of sewage sludge becomes energy recovery by combustion after its ocean dumping is banned in 2012 in Korea. Due to the high moisture content, however, sewage sludge is required to be dried before transport and combustion. In this study, pyrolysis and combustion characteristics of dried sewage sludge was investigated in a small-scale fixed bed reactor in order to provide fundamental data for energy recovery of the fuel. As the first step of combustion, the primary products of pyrolysis were analyzed in a fixed bed reactor for the condensable volatiles (tar), non-condensable gases, and char. For the combustion characteristics, another fixed bed reactor was constructed to monitor the weight and temperature of the fuel particles during ignition and combustion under different air flow rates. The test results were used to derive the ignition and burning rates.

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경북 북부권 대학교 기숙사 침실 공간 환경평가에 관한 연구 (A Study on the Environmental Evaluation for Bed Room Space of University Dormitories in North Region in Gyeongbuk Province)

  • 황용운
    • 한국주거학회논문집
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    • 제19권1호
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    • pp.67-77
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    • 2008
  • In general, the function of university dormitory includes residental, educational and many other functions for students who need quite environment and energetic living life. Among these many functions, the most important function is residental function (bed room). This study attempts to evaluate the bed room environment of four university dormitories in north region of Gyeongbuk Province using resident's (students) need and satisfaction. In the present work, SPSS window version12.0 program's Anova (duncan, scheff, t-test.) was used for analysis of statistical data which obtained from survey. The field surveys carried out for a total samples of 473 residents such as AD (118), DY (159), Kw (101) and SJ (95)) types of bed room in four university dormitories. The result appears that the most dissatisfied factor of resident was personal privacy, and the most satisfied factor was the direction (location) of bed room space.