• Title/Summary/Keyword: S-52

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ON 4-EQUIVALENCED ASSOCIATION SCHEMES

  • PARK, JEONG RYE
    • Bulletin of the Korean Mathematical Society
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    • v.52 no.5
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    • pp.1683-1709
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    • 2015

  • Let (${\Omega}$, S) be an association scheme where ${\Omega}$ is a non-empty finite set and S is a partition of ${\Omega}{\times}{\Omega}$. For a positive integer k we say that (${\Omega}$, S) is k-equivalenced if each non-diagonal element of S has valency k. In this paper we focus on 4-equivalenced association schemes, and prove that they are transitive.

  • https://doi.org/10.4134/BKMS.2015.52.5.1683 인용 PDF KSCI

A Study on the Depiction of ENC Features to Apply S-52 Standards Under the 3D Visualization Environment (3차원 가시화 환경에서 S-52 표준을 적용하기 위한 전자해도 객체의 표현방법에 관한 연구)

  • Lee, Hee-Yong
    • Journal of Navigation and Port Research
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    • v.40 no.6
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    • pp.369-374
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    • 2016

  • Recently, due to the rapid development of smart computing technology, there have been a lot of studies on 3D navigation, and consequently the advanced commercial 3D navigation system and 3D VTS system are on the market. Even the 3D technology is well known and wide spreaded, unfortunately, the secret of code behind is still unleashed. The purpose of this paper is to show the basic methodologies to display ENC features under 3D display environment to meet the requirement of S-52 standards. The OpenGL ES is used to develop 3D ENC Viewer for further use on mobile platforms and web based vessel monitoring system. P articularly, area object triangulation, complex line drawing, polygon pattern filling and symbol drawing by texture mapping are explained in detail. The result of performance test is shown as table for correlation of SENC file size to display speed.

  • https://doi.org/10.5394/KINPR.2016.40.6.369 인용 PDF KSCI