• Proceedings of KOSOMES biannual meeting
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• 2003.05a
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• pp.117-123
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• 2003

It is impossible to apply present standards and test methods because the radiation principle and mechanism of a new marine lantern using light emitting diodes is different from those of the existing marine lantern which uses an incandescent electric lamp. Thus. in this study, we discuss the research and development on the light emitting diodes marine lantern and specifications.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2000.06a
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• pp.57-81
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• 2000

Universal AIS technology is effective and could enhance navigational safety -The AIS provides and improved method of vessel traffic surveillance -Complement to radar in collision avoidance -Invaluable in Search And Rescue operations -Reduce voice communications -Effective Fleet management

• Proceedings of KOSOMES biannual meeting
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• 2007.11a
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• pp.157-159
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• 2007

• Proceedings of the Korea Electromagnetic Engineering Society Conference
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• 2003.11a
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• pp.669-679
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• 2003

Through AIS(Automatic Identification System), ITU-R suggested the navigational data communication between ships and between ships and shore stations for the better safety of navigation, and it requires two different the transmitting output power level depending on its operating mode. According to ITU's recommendation, these levels should reach within 20% of its final value in 1ms. In this paper, an adequate feedback control circuit for power amplifier module is designed and implemented.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.27-28
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• 2017

• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.62-63
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• 2017

• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.170-170
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• 2017

• International Journal of Computer Science & Network Security
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• v.21 no.11
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• pp.241-247
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• 2021

In the article, an analysis of the factors was carried out, which injected into the efficiency of the function of navigation systems in the minds of unimportance. Carrying out analyzes allowing for the visibility of relevant direct adjustments to the effectiveness of the function Inertial navigation systems in the minds of non-value. The designation of the navigation system was assigned to a complex of navigation systems on ships processing of the vector of navigation parameters, so that they can be victorious in the control systems of the ship's collapse, and the safety of floating is safe.

• Journal of Navigation and Port Research
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• v.48 no.2
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• pp.88-96
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• 2024

This study examined challenges posed by two ferry routes, namely, Likoni and Mtongwe crossings, in the Mombasa Channel and their impact on navigational safety. Utilizing the Environmental Stress (ES) model, this study analyzed current ship traffic and assessed stress levels imposed by ferry crossing traffic on navigators. ES values revealed significant stress at these ferry crossings attributed to varying transit speeds. Standardizing transit speeds at two ferry passages can reduce high stress levels, presenting a viable solution. Furthermore, the IWRAP Mk2 simulation underscores crossing collisions as a significant concern, particularly at Likoni and Mtongwe crossings, due to increased ferry traffic. This research offers valuable insights for stakeholders, such as the Kenya Ports Authority (KPA), to develop targeted safety measures and enhance the flow of ship traffic in the channel.

• Journal of Navigation and Port Research
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• v.29 no.7
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• pp.627-634
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• 2005

Gunsan-Janghang Harbor is located at the mouth of Gum River, on the central west coast of Korea The harbor and coastal boundaries are protected from the effects of the open ocean by natural coastal islands and shoals due to depositions from the river, and two breakwaters. The navigation channel commences at the gap formed by the outer breakwater and extends through a bay via a long channel formed by an isolated jetty. For better understanding and analysis of wave transformation process where a wide coastline changes appear due to on-going reclamation works, we applied the spectral wave model including wind effect to the related site, together with the energy balance models. This paper summarizes comparisons of coastal responses predicted by several numerical wave predictions obtained at the coastal waters near Gunsan-Janghang Harbor. Field and numerical model investigations were initially conducted for the original navigation channel management project. We hope to contribute from this study that coastal engineers are able to use safety the numerical models in the area of port and navigational channel design.