• Title/Summary/Keyword: S/W Development Process

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Technical Papers : Development of KOMPSAT-1 Scheduling & Automatic Command Plan Generator ( KSCG ) (기술논문 : 다목적 실용위성 1 호의 임무계획 및 자동 명령계획표 생성기 개발)

  • Kim,Hae-Dong;Choe,Hae-Jin;Kim,Eun-Gyu
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.30 no.1
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    • pp.139-146
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    • 2002

  • This paper describes the devlopment and implementation for the KOMPSAT-1 scheduling & automatic command plan generator(KSCG). Some problems in mission planning and command planning had occurred using the mission & command planning s/w in MAPS(Missin Analysis and Planning Subsystem) during the LEOP(Launch & Early Orbit Phase) & early normal mission phase due to lots of manual input process and non-automatic process. Therefore, the more mission operations for KOMPSAT-1. In order to prevent the development of new one(KSCG) which should reduce the manual process and generate automatically the command plan has been needed. As a result, the mission operations of KOMPSAT-1 has greatly became stable and more effient.

  • https://doi.org/10.5139/JKSAS.2002.30.1.139 인용 PDF KSCI

AUTOMOBILE UNDERHOOD THERMAL AND AIR FLOW SIMULATION USING CFD (전산유체역학을 이용한 자동차 엔진룸의 열 및 유동장 해석)

  • Oh, K.T.;Kim, J.H.;Lee, S.W.;Kim, Y.S.;Ha, J.W.;Kang, W.K.
    • Journal of computational fluids engineering
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    • v.12 no.1
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    • pp.22-27
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    • 2007

  • Automobile underhood thermal and airflow simulation h α s been performed by using a commercial CFD program, FLUENT. To implement the radiation heat transfer effect to the underhood thermal and flow field, Discrete Ordinates Method(DOM) was used. The cooling fan was modeled by using the Multiple Reference Frame(MRF) technique. For the implementation of the heat exchangers, such as radiator and condenser, which are located in the front side of vehicle, the effectiveness-NTU model was used. The pressure drop throughout the heat exchangers was modeled as Porous media. For the validation of the current computational method, the coolant temperature at the inlet port of the radiator was compared with experimental data, and less than 3% error was observed. Finally, the composed model was used for the cooling fan spec determination process in the development of a new vehicle, and the results showed that the current CFD method could be successfully applied to the vehicle development process.

  • PDF KSCI

Competitiveness Evaluation Factors and Strategic Development for the Port of Busan using the SWOT·AHP Method (SWOT·AHP를 이용한 부산항 경쟁력 평가요인과 발전방향에 관한 연구)

  • Chae, Gi-Young;Lee, Chul-Yong
    • Journal of Korea Port Economic Association
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    • v.36 no.1
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    • pp.105-128
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    • 2020

  • This study suggests a strategic direction for developing the Port of Busan based on evaluating and prioritizing the relative importance of competitiveness factors for ports using SWOT analysis and the analytic hierarchy process (AHP) method. The Port of Busan is the world's sixth largest container port and the largest port in South Korea. The Port of Busan constitutes a key industrial infrastructure for an exporting country. Despite the economic and industrial importance of the Port of Busan, little research has examined its strategic development. This study derives a SWOT matrix for evaluating the competitiveness of factors from previous studies and expert reviews, and it constructs a hierarchical analysis structure model based on the SWOT matrix. To deduce a strategic direction for developing the Port of Busan, a questionnaire based on SWOT·AHP was distributed to industrial and academic associations to prioritize competitive factors. This study presents four strategic tactics based on strengths (S), weaknesses (W), opportunities (O), and threats (T) (S/O, S/T, W/O, and W/T) as strategic directions for developing the Port of Busan. This study will contribute objectively to the overall effort by the government to improve the operation of the Port of Busan and establish development strategies.

  • https://doi.org/10.38121/kpea.2020.03.36.1.105 인용 PDF KSCI