• Title/Summary/Keyword: marine environment monitoring

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Cleaner Production and Its Application in Marine Environment (청정생산과 해양에의 적용성에 관한 연구)

  • Song Museok
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.6 no.3
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    • pp.3-15
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    • 2003
  • The concept of 'Cleaner Production(CP)' and various activities aiming at promoting CP are investigated along with the applicabilities of CP to marine environment. Although the conventional approaches dealing with the marine pollutions can be absorbed in CP, the whole activities of Production and conservation in the ocean must be projected into a new Paradigm, 'Sustainable Development.' Renewable energy is the first key to a complete CP and the ocean can provide us with the clew. In order to introduce CP system more effectively to marine environment opinion collection, environment monitoring, problem identification, resolution proposition, state-of-the-art evaluation, policy development, communication, education and public information are to be Planned and followed up systematically KOSMEE is believed to be a good structure to stand at the center of the upcoming CP activities in the ocean.

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A Study on the Development of leisure boat's Hull Stress Monitoring System using AWG (광섬유센서를 이용한 레저선박의 선체구조모니터링시스템 개발에 관한 연구(I))

  • Kang, Nam-Seon;Kim, Hyen-Woo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.17 no.3
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    • pp.269-274
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    • 2011
  • The purpose of hull stress monitoring system(HSMS) is to lead hull structure to be safer at lower cost. We proposed a hull stress monitoring system for leisure boats using fiber-optic bragg grating(FBG) strain sensor. Fiber optic sensors are well suited for structure monitoring system, due to their ability to withstand harsh environments, immunity to electromagnetic interference, and reduce cabling installation cost when employing wavelength multiplexing. This paper presents an overview of current research and design of hull stress monitoring system for leisure boats.

A Tablet PC-based Monitoring System for Oceanic Applications

  • Lee, Ji Young;Oh, Jin Seok
    • Journal of information and communication convergence engineering
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    • v.11 no.4
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    • pp.253-257
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    • 2013
  • Mobile computers can process large amounts of data at high speeds, and it is feasible and easy to implement a remote monitoring system utilizing mobile computers. Because of their portability and convenience, these computers have been employed in various research areas to develop such monitoring systems. Existing monitoring system is a bit difficult to real time monitoring the scattered offshore facilities. So this paper compensate the existing system by using mobile computers such as a tablet PC-based monitoring system. Also, the scattered offshore facilities can be monitored in real-time through the tablet PC. The developed monitoring system is a fully Internet-based monitoring platform that enables one to monitor and control remote oceanic applications at any time and any place where it is possible to access the Internet. It can be applied to many oceanic applications as well as the unmanned systems and remote monitoring systems on land.

A Study on the Communication Strategy to Risk Management of Agri-marine Products Distribution Policy (농수산물 유통정책의 위기관리에 따른 커뮤니케이션전략에 관한 연구 - 유통정책 갈등해소에 대한 스캐닝, 모니터링을 중심으로)

  • Kim, Man-Ki
    • Journal of Digital Convergence
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    • v.6 no.1
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    • pp.63-73
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    • 2008
  • The present study attempted to explore effective scanning and monitoring in process of risk management on agri-marine products distribution policy. The interest public's group interests clash in accordance with theme for issue on marking policy. For executing a better systematic scanning and monitoring on actual affairs of marketing, selecting information personnel, gathering and analysing information, issue and risk management and their valuation with ongoing and simultaneously. Especially, In order to explore effective scanning and monitoring as a model of risk management, the study attempted to analyze within and without environment of marketing, to analyze issue management strategy, to evaluate issue activity for likelihood and impact, risk cycle analysis, interest public's group concerned, grade of interest public's group threatened(power, legitimacy, willingness), rapport(staying close, credibility, meeting expectation). And the study make an ongoing observation progress of subjects, and the serious subjects need have made an close observation. The study suggested to establish friendly relationship between organization and interest public's group, and to regularly accomplish two-way symmetric communication.

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Changes in Marine Environment by a Large Coastal Development of the Saemangeum Reclamation Project in Korea

  • Lie, Heung-Jae;Cho, Cheol-Ho;Lee, Seok;Kim, Eun-Soo;Koo, Bon-Joo;Noh, Jae-Hoon
    • Ocean and Polar Research
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    • v.30 no.4
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    • pp.475-484
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    • 2008
  • The word 'Saemangeum' indicates an estuarine tidal flat in the southwestern part of the Korean peninsula. The Saemangeum Reclamation Project was launched as a national project in 1991 to reclaim a large coastal area of $401\;km^2$ by constructing a 33-km long dyke. The final dyke enclosure in April 2006 has transformed the tidal flat into lake and land. An integrated oceanographic study has been conducted since 2002 as a part of the Government Action Plan to monitor and assess changes in the marine environment. Prior to the dyke enclosure, the coastal environment in the Saemangeum was a complex system governed by tidal motion, estuarine processes, and coastal circulation of the Yellow Sea. The dyke construction has radically changed not only the estuarine tidal system inside the dyke, but also the coastal marine environment outside the dyke. Post to the dyke enclosure, subsequent changes such as red tide, hypoxia, and coastal erosion/deposition occur successively. Red tides appear almost the year round in the inner area. Even under the condition that the sluice gates are fully open, the water quality does not improve as much as the developers would expect, mainly due to the critical reduction of the hydrodynamic stirring power. We will introduce details of our monitoring program and significant changes in the Saemangeum marine environment, based on observations and model results.

Reliability Evaluation of ER Type Corrosion Sensor for Monitoring Corrosion of Piping System Under Accelerated Corrosion Environment (배관의 부식 상태 진단에 사용되는 ER 부식센서의 가속부식환경에서의 신뢰성 평가)

  • Hwang, Hyun-Kyu;Shin, Dong-Ho;Kim, Heon-Hui;Lee, Jung-Hyung
    • Corrosion Science and Technology
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    • v.20 no.6
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    • pp.403-411
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    • 2021
  • In this study, the reliability of a commercial ER-type corrosion sensor was evaluated under an accelerated corrosion environment to verify its suitability for application in monitoring of ship's seawater piping system. A closed-loop pump piping testbed was designed and constructed to compare the wall thickness reduction of the pipe and the response from the sensor. The sensor was attached inside the pipe near the outlet of the pump that was exposed to a 3.5% NaCl solution with or without copper accelerated acetic acid (CASS). The results demonstrated that the presence of CASS significantly increased the corrosivity of the solution as well as the thickness reduction of the pipe, as expected. On the other hand, the corrosion products formed by the solution with CASS were thicker compared with those without CASS. The sensor response to temperature variation was found to be a clear linear relationship for the solution without CASS but there was a non-linear relationship where CASS was present.

A Study of Applicability of Monitoring System through Polar Environment around the King Sejong Station, Antarctica (극지환경을 고려한 남극 세종과학기지 계측시스템 적용성에 관한 연구)

  • Park, Keunbo;Kim, Young Seok
    • Journal of the Korean Geosynthetics Society
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    • v.12 no.2
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    • pp.43-53
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    • 2013
  • Environmental monitoring analysis were analyzed for the period from 1988 to 2007 near King Sejong Station. Extreme environment structure behaviors(Marine Biology Lab.) were evaluated using monitoring sensors developed commercial sensors. Also when installing the sensors ambient environment of the King Sejong Station, to analyze the measured data and the comparative behavior of the structure were analyzed. As a environmental monitoring analysis result at King Sejong Station temperature, sensors were installed to withstand about $-25.6^{\circ}C$ or less and 49.5m/s. They were needed that the height of 225.0cm or more to be installed during the installation. For several monitoring sensors used in Antarctic, temperature, snow and strong winds were very sensitive to the atmospheric environment. Quite often a camouflage(animals and humans) would make it necessary to provide housing for monitoring sensors. Therefore, protection system developed for these sensors were to protect the sensors and data logger. Protection system the newly developed, is economical, easy to install even in harsh environments. Based on the measurement result of the one year, consider electrode applicability of the protection system, it was confirmed that the behavior of the structure is also predictable.

European Union System of Fisheries Management Based on Information and Communication Technology (유럽연합의 ICT기반 수산업 구조개선 현황)

  • Oh, Hyuntaik;Lee, Wonchan;Jung, Raehong;Kim, Hyeonchul
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.46 no.5
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    • pp.513-519
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    • 2013
  • The fishing industry in Europe has faced environmental, economic, and social challenges. Since the early 2000s, a key tool in addressing these challenges has been information and communication technology (ICT), which has helped to modernize fishery systems in European Union (EU) countries. The ICT used in EU fisheries can be categorized broadly as 1) macro-technologies such as satellite and other remote sensing technologies in combination with geographical information systems, 2) micro-technologies adapted for fishing vessels such as echo sounders, ship navigation devices, and mobile communication devices to connect fishermen and consumers, and 3) onshore micro-technologies related to internet technology and mobile devices. The European Monitoring Center on Change has used ICT to effectively manage fisheries bio-resources. This use of ICT has contributed to the development of sustainable and competent fisheries in the 2000s, even though the knowledge-sharing practices involved are contrary to the long tradition of autonomy within the fishery industry.