• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2018.10a
• /
• pp.47-48
• /
• 2018

In this paper, by utilizing the function of the electronic chart display information system, which is a device that displays the waterway information such as the position, sink, speed, chart information, and depth of the ship, Implementation of electronic chart viewer system focusing on information collection, installation, operation and maintenance of traffic facilities.

• Journal of Fisheries and Marine Sciences Education
• /
• v.19 no.1
• /
• pp.29-38
• /
• 2007

Recent Internet Service Environment has been moved to provide geographic information based on location as well as existent various information. In this paper, we develop an integrated software connecting GIS information to Internet. In the other hand, in GIS S/W, it is important that rapid output of Digital Map and effective trnasmission of specified Digital Map about moving area. To achieve the purpose, we propose a reduced digital format to diminish original digital maps. Also, we develop a GIS-based software engine with functions connecting location information to URL as well as map viewer and map handling. Futhermore, our developed GIS S/W is based Module in LBS application using GPS sensor.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2006.10a
• /
• pp.56-62
• /
• 2006

This thesis researches on the application of computer, modern communication, GIS, GPS, AIS and World-Wide-Web in the field of navigation-aids information system, and has realized an integrated system consisted of navigation-aids information GIS platform, navigation-aids monitoring system and navigation-aids information distribution system. This system has strong integration capability, and has realized navigation-aids information distribution based on WEBGIS at the first time. It strongly promotes navigation-aids daily management and maintenance, and this system provides technique guarantee fur ships and marine departments to acquire navigation-aids information in time, by rule and line expediently.

• Proceedings of the KSRS Conference
• /
• v.2
• /
• pp.950-953
• /
• 2006

SIMP is an international project funded by INTAS aimed at improving the information content, which can be inferred from multi-sensor satellite imagery of marine coastal areas. Scientific teams from Germany, UK, Portugal, and Russia focus on the development of novel tools for marine remote sensing of the coastal zone. In particular, the project teams' benefit from the fact that surface films may enhance the signatures of hydrodynamic processes such as plumes, internal waves, eddies, etc., on microwave, optical, and infrared imagery. The project's objectives are to develop a robust methodology for identifying slick-related phenomena/processes through their surface signatures and thereby, to improve the discrimination capabilities between slicks and other oceanic and atmospheric phenomena by taking into account information gained from satellite imagery quasi-simultaneously recorded at microwave, visible and IR wavelengths. The results of the two project years are summarized. Examples are given for the project’s web presentation, laboratory and field experiments, and of the analyses of various satellite data.

• Journal of the Society of Naval Architects of Korea
• /
• v.55 no.1
• /
• pp.83-91
• /
• 2018

In this paper, usefulness of marine radar for water waves measurement in coastal waters is presented. We installed a marine radar to acquire radar images of water wave around light beacon at Jujeon in Ulsan. Also, a series of analysis procedures for obtaining the wave information from the acquired image is described with a schematic diagram. We compared analysis results of radar images with measurement values using wave height gauge at light beacon. In order to improve accuracy of analysis results, detailed water depth information is essential. In conclusion, in case of the use of radar for water waves measurement, it is shown that it is very necessary to increase the accuracy of measurement by consideration of the water depth in the dispersion relation of water waves.

• The Plant Pathology Journal
• /
• v.31 no.2
• /
• pp.186-191
• /
• 2015

Diatoms are a major component of the biological community, serving as the principal primary producers in the food web and sustaining oxygen levels in aquatic environments. Among marine planktonic diatoms, the cosmopolitan Skeletonema costatum is one of the most abundant and widespread species in the world's oceans. Here, we report the basic characteristics of a new diatom-infecting S. costatum virus (ScosV) isolated from Jaran Bay, Korea, in June 2008. ScosV is a polyhedral virus (45-50 nm in diameter) that propagates in the cytoplasm of host cells and causes lysis of S. costatum cultures. The infectivity of ScosV was determined to be strain- rather than species-specific, similar to other algal viruses. The burst size and latent period were roughly estimated at 90-250 infectious units/cell and <48 h, respectively.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
• /
• 2003.08a
• /
• pp.137-142
• /
• 2003

Offshore observation of tsunami and storm surge before arriving to the coast is very important fur coastal disaster prevention. But up to ten years ago, coastal tide stations had been supposed to be the only means to observe tsunami and storm surge profile, fir difficulty of offshore observation (Goda.et.al., 2002). Recently seabed installed coastal wave gauges have been repeatedly reported to successfully observe various tsunami profiles by conducting continuous data acquisition (Goda.et.al., 2001 ： Nagai, 2002a; Nagai.et.al, 1996, 2000, 2002b). (omitted)

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2010.07a
• /
• pp.509-510
• /
• 2010

본 논문에서는 마우스 제어를 위한 불변 모멘트 기반의 손 인식 알고리즘을 제안한다. 이를 위하여 배경영상과 입력영상의 차이를 구하고, RGB 컬러모델을 HSV 컬러모델로 변환하여 피부색상과 유사한 영역을 얻었다. 이 둘 사이의 교집합을 통하여 손 영역을 추출하고 모폴로지 연산을 통해 잡음을 제거한 다음 불변 모멘트를 이용하여 손 영역을 인식하였다. 제안된 방법은 손의 이동, 크기 변화, 회전에 무관하게 손을 인식할 수 있다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.01a
• /
• pp.29-30
• /
• 2014

최근 해양 분야에서는 레저보트, 윈드서핑, 낚시 해상관광 등 해상에서 활동이 증가됨에 따라 선박의 안전을 비롯하여 해상 활동을 위한 다양한 정보 제공 요구가 점차 늘어가고 있다. 해상활동을 위한 정보제공은 사용자의 위치를 기반으로 사용자에게 적합한 정보의 제공이 필요하다. 특히, 전자해도 상에 사용자의 위치 또는 사용자가 지정한 위치를 기반으로 정보를 제공하는 위치 기반 정보 서비스의 제공 요구가 늘어나고 있다. 본 논문에서는 사용자의 위치 또는 사용자가 설정한 위치를 중심으로 전자해도 상에 정보를 표시하여 제공하는 정보시스템 모델을 제시한다. 본 논문에서 제시하는 시스템은 사용자 디바이스로부터 획득한 위치정보 또는 사용자가 전자해도 상에 지정한 위치를 바탕으로 항로표지 정보, 일출, 일몰, 간조, 만조, 날씨 등을 표시하여 제공한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2011.10a
• /
• pp.66-69
• /
• 2011

Many international organizations build a global communications network called the GMDSS by close cooperation, and ITU-R, IMO and IEC apply it for the modernization of the international marine radiocommunication system, but a modernization study of the GMDSS to reflect such a technique by the rapidly development of the wireless communication technology recently progresses. Such effort was submitted for adoption with WRC-12 held in 2012. This paper analyzed standardization trends for marine radiocommunication modernization discussed around ITU-R recently and analyzed research activities for frequency allocation for new technical introduction and described it.