• Title/Summary/Keyword: Atlantis model

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Study on a Three-Dimensional Ecosystem Modeling Framework Based on Marine Food Web in the Korean Peninsula (한반도 연근해를 대상으로 해양 먹이망 기반 3차원 생태모델 구축 연구)

  • Cho, Chang-Woo;Song, Yong-Sik;Kim, Changsin;Youn, Seok-Hyun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.54 no.2
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    • pp.194-207
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    • 2021
  • It is necessary to assess and manage the different elements of the marine ecosystem, such as climate change, habitat, primary and secondary production, energy flow, food web, potential yield, and fishing, to maintain the health of the ecosystem as well as support sustainable development of fishery. We set up an ecosystem model around the Korean peninsula to produce scientific predictions necessary for the assessment and management of marine ecosystems and presented the usability of the model with scenario experiments. We used the Atlantis ecosystem model based on the marine food web; Atlantis is a three-dimensional end-to-end model that includes the information and processes within an entire system, from an abiotic environment to human activity. We input the ecological and biological parameters, such as growth, mortality, spawning, recruitment, and migration, to the Atlantis model via functional groups using existing research and local measurements. During the simulation period (2018-2019), we confirmed that the model reproduced the observed data reasonably and reflected the actual ecosystem characteristics appropriately. We thus identified the usability of a marine ecosystem model with experiments on different environmental change scenarios.

Mobile Robot navigation using an Multi-resolution Electrostatic Potential Filed

  • Kim, Cheol-Taek;Lee, Ju-Jang
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.690-693
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    • 2004
  • This paper proposes a multi-resolution electrostatic potential field (MREPF) based solution to the mobile robot path planning and collision avoidance problem in 2D dynamic environment. The MREPF is an environment method in calculation time and updating field map. The large scale resolution map is added to EPF and this resolution map interacts with the small scale resolution map to find an optimal solution in real time. This approach can be interpreted with Atlantis model. The simulation studies show the efficiency of the proposed algorithm.

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