• Title/Summary/Keyword: Initiative

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An Induction Scheme of Fast Initiative-Evacuation Based on Social Graphs

  • Taiyo, Ichinose;Tomoya, Kawakami
    • Journal of Information Processing Systems
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    • v.18 no.6
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    • pp.770-783
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    • 2022

  • Early evacuations reduce the damage caused by catastrophic events such as terrorism, tsunamis, heavy rains, landslides, and river floods. However, even when warnings are issued, people do not easily evacuate during these events. To shorten the evacuation time, initiative-evacuation and its executors, initiative evacuees, are crucial in inducing other evacuations. The initiative evacuees take the initiative in evacuating and call out to their surroundings. This paper proposes a fast method to induce initiative-evacuation based on social graphs. The candidates are determined in descending order of the number of links for each person. The proposed method was evaluated through simulations. The simulation results showed a significant reduction in evacuation time.

  • https://doi.org/10.3745/JIPS.04.0261 인용 PDF KSCI

Development and Evaluation of Dual-Axis X-band Antenna Pointing Mechanism for Space Applications (2축 X-band 안테나 지향 기구장치의 개발과 검증)

  • Eom, Sangcheol;Kang, Byeongsu;Kim, Hyunsop;Park, Inyong;Kim, Yeonyong;Hwang, Kyuhun;Choi, Woong;Yang, Seunguk;Lee, Hyunwoo
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.46 no.5
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    • pp.410-418
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    • 2018

  • This paper describes the design, analysis, and verification tests of the Dual-axis X-band antenna pointing mechanism(XAPM) that has been developed for the Earth observation mission at low Earth orbits. Based on the experience of development and operation of the similar system, we defined the main points and requirements of the system design and confirmed the characteristics of the system through the verification test of the launch and orbit environment test of the engineering qualification model. Through the characteristics and verification techniques of the system acquired during this process, improvement points of the later qualification model are derived.

  • https://doi.org/10.5139/JKSAS.2018.46.5.410 인용 PDF KSCI