• 제목/요약/키워드: Safe design

검색결과 2,025건 처리시간 0.03초

방전등 안정기의 보호회로 기술 현황 (A Stuty of Protection Circuit for Discharge Lamp Ballast)

  • 한수빈;박석인;송유진;정학근;정봉만
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2008년도 춘계학술대회 논문집
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    • pp.133-135
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    • 2008
  • In a design of ballast for discharge lamp, various kind of protection circuit are essential for safe operation. In this paper, overvoltage and current detection, no-load detection, lamp-fault detection, end of lamp detection for protection are introduced. Individual circuit operation and their function are described with the base that all circuit form is similar with overvoltage protection circuit.

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Waste Management for Hog Farms - Review -

  • Svoboda, I.F.;Jones, A.
    • Asian-Australasian Journal of Animal Sciences
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    • 제12권2호
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    • pp.295-304
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    • 1999
  • The planning and application of new developments in management of wastes. in hog farming is required to minimise the gaseous emissions from wastes and pollution of the aquatic environment. These strategies are enveloped in the "Farm Waste Management Plan" which identifies areas of the waste assets in form of plant nutrient and considers optimal manute collecting and storing procedures. The storage volumes for environmentally acceptable manure treatments and application methods are suggested. Good Waste Management Planning together with appropriate system design will ensure safe, reliable and effective waste handling.

Direct Evaluation of the Maximum and Limit States of Inelastic Structures Under Step Loads

  • Lee, Sang-Ho-
    • 한국해안해양공학회:학술대회논문집
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    • 한국해안해양공학회 1992년도 정기학술강연회 발표논문 초록집
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    • pp.146-149
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    • 1992
  • The dynamic inelastic analysis is now often performed for the safe structural design against the seismic events or explosions. Several powerful methods of dynamic inelastic analysis such as direct intergration methods and modal superposition methods were developed with the development of computers during the last three decades. This type of analysis generally adopts the step-by-step time-integration procedure and gives a complete time history of the evolution of the structure.(omitted)

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여천 임해공업단지 매립 계획 및 설계 (Reclamation Plan and Design for The Yeochon Industrial Complex)

  • 한경석;신승철
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 1992년도 가을학술발표회 논문집
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    • pp.75-86
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    • 1992
  • The elevation of reclamation work in the coastal area for the industrial complex is determined through the investigation and review of marine conditions, drainage plan and fill materials. The embankment to be constructed with crushed stone on the soft soil should be safe against the wave force, immediate and long term consolidation settlement, overturning and sliding due to self-weight and other forces. Because of lack of fill material from the borrow pit, the soft marine clay to be dredged shall be used as the reclamation material. And Paper Drain Board is used as the improvement method for the deep soft clay strata.

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알루미늄 철도차량 차체의 손상 방지를 위한 연구 (Studies on the Prevention of Damages on the Carbody of Aluminum Rolling Stock)

  • 서승일
    • 한국철도학회논문집
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    • 제5권3호
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    • pp.181-186
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    • 2002
  • Aluminum rolling stocks have been developed for six years in Korea and commercial trainsets are being constructed by the carbuilder. Aluminum alloys are sensitive to various imperfections. In this paper, damages and failures of the aluminum carbody taking place during the process of development are investigated and accumulated data are released. Also, remedies for the failures are suggested and design changes are introduced. It is expected that all informations can contribute to construction of reliable and safe aluminum rolling stocks.

안전성 평가를 위한 제품요소 (Product elements for the safety assessment)

  • 박지영;조암
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2008년도 춘계학술대회
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    • pp.239-245
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    • 2008
  • In this study has investigated and considered product planning methods at the existing product design process and being used the safety evaluation methods at the product planning stage, and has deduced the 16 safety evaluation elements to have to be considered for executing the safety evaluation at the product planning stage. When the safety evaluation is executed from the product planning stage, more safe products will be designed.

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The Effect of Train Motion on Current Collection in High-speed Train

  • Kim, Jung-Soo
    • International Journal of Safety
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    • 제5권1호
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    • pp.1-4
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    • 2006
  • The safety performance of the current collection system is evaluated by conducting a test run in which accelerometer and load cell signals are analyzed. It has been found that the current collection performance is strongly influenced by the train speed, with the major frequency components arising from the train traversing the span spacing and the 8.5 Hz component originating from the panhead resonance. The train acceleration is found to have significant influence on the span passing frequency but negligible effect on the resonant response.

PC 베이스의 실시간 차량 시뮬레이션 (PC-Based Real-Time Driving Simulation)

  • 조준희;최동찬;유승철;이운성
    • 한국시뮬레이션학회:학술대회논문집
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    • 한국시뮬레이션학회 2000년도 추계학술대회 논문집
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    • pp.192-197
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    • 2000
  • Real-time driving simulation is a comprehensive technology that can be applied effectively to vehicle and traffic safety improvement, by reproducing various driving conditions and situations realistically in a safe and controlled environment. This paper describes PC-based real-time driving simulation technology in terms of design factors and simulation components. It also introduces Kookmin University Driving Simulators developed based on these considerations, which have been applied effectively to ABS HILS and a human factor study concerning sudden acceleration accident reconstruction.

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${250MW_th}$ AMBIDEXTER 원자로의 정특성 최적설계 (Some Static Design Characteristics of the Optimized ${250MW_th}$ AMBIDEXTER Core)

  • 조재국;원성희;임현진;김태규;윤정선;오세기
    • 한국에너지공학회:학술대회논문집
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    • 한국에너지공학회 1999년도 춘계 학술발표회 논문집
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    • pp.113-118
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    • 1999
  • AMBIDEXTER(Advanced Molten-salt Break-even Inherently-safe Dual-mission Experimental and TEst Reactor)는 고온저압의 Th/$^{233}$ U 불화용융염을 핵연료로 사용하므로 피복관이나 독립된 냉각재 없이 핵연료 자체가 열수송 매체로서 순환하는 원자로시스템개념으로서 저농축 $^{235}$ U 고체 핵연료를 사용하는 기존의 원자력 발전시스템이 안고있는 핵확산과 안전성 등의 고유문제를 해결할 수 있는 혁신형 차세대 원자력 발전시스템이다.(중략)

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경량항공기 이착륙장의 최소 요구조건에 대한 연구 (The Study on the Minimum Requirements for the Design of an Airpark used in Light Sport Aircraft Operations)

  • 신대원;신홍철
    • 한국항공운항학회지
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    • 제17권2호
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    • pp.18-22
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    • 2009
  • In this study, we surveyed the operating status of the Light Sport Aircraft(LSA) in Korea, and reviewed the minimum requirements of the airpark for LSA in other countries. Based on the information, we presented the airpark standards to ensure the safe take-off, landing, and operation of LSA in Korea.

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