• Title/Summary/Keyword: Marine

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An Exploration of Direction for Human Resource Development in Marine industry (해양산업 인적자원개발 방향 탐색)

  • LYU, Mi-Hyun;WON, Hyo-Heon;HONG, Jeong-Whan
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.6
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    • pp.1801-1811
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    • 2016
  • The purpose of this research is to grasp the present state of marine lifelong education and to provide direction for maritime industry. In this research, we first saw our country present ocean industry and the ocean lifelong education concept and definition besides formal school education to secure ocean human capital. Second, we researched about the ocean lifelong education that has been progressing by the organization, and by this, we inferred what to improve from our country ocean lifelong education. As a result, the improvement point for present ocean lifelong education of our country was first, the reflect of variety of marine related information in our country lifelong education is low, second, the learners were mostly children and teenagers, third, most of the were event education. Forth, it is good that there are a lot of experimenting programs, but most of them were experiment of ocean leisure sports and visiting the facilities, and because these are one-time thing so it was hard to secure marine citizenship or help them set their career in marine. Fifth, all facilities had similar contents for the experimenting program, and sixth, education period was concentrated on May and November.

A Case Study of Marine Accident Investigation and Analysis with Focus on Human Error (해양사고조사를 위한 인적 오류 분석사례)

  • Kim, Hong-Tae;Na, Seong;Ha, Wook-Hyun
    • Journal of the Ergonomics Society of Korea
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    • v.30 no.1
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    • pp.137-150
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    • 2011
  • Nationally and internationally reported statistics on marine accidents show that 80% or more of all marine accidents are caused fully or in part by human error. According to the statistics of marine accident causes from Korean Maritime Safety Tribunal(KMST), operating errors are implicated in 78.7% of all marine accidents that occurred from 2002 to 2006. In the case of the collision accidents, about 95% of all collision accidents are caused by operating errors, and those human error related collision accidents are mostly caused by failure of maintaining proper lookout and breach of the regulations for preventing collision. One way of reducing the probability of occurrence of the human error related marine accidents effectively is by investigating and understanding the role of the human elements in accident causation. In this paper, causal factors/root causes classification systems for marine accident investigation were reviewed and some typical human error analysis methods used in shipping industry were described in detail. This paper also proposed a human error analysis method that contains a cognitive process model, a human error analysis technique(Maritime HFACS) and a marine accident causal chains, and then its application to the actual marine accident was provided as a case study in order to demonstrate the framework of the method.

A preliminary study on operation-effectiveness analysis of marine traffic safety facility (해상교통안전시설의 운영효과분석에 관한 기초연구)

  • Gug, Seung-Gi;Kim, Jung-Hoon;Piao, Yong-Nan
    • Journal of Navigation and Port Research
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    • v.31 no.10
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    • pp.819-824
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    • 2007
  • This paper studied safety benefit of operation-effectiveness analysis on marine traffic safety facilities. In the operation-effectiveness of marine traffic safety facilities the benefits can be divided as safety benefit, transport benefit, and other benefit. Safety benefit was produced as the loss aversion cost of marine traffic caused by the reduction of marine accidents after establishing and operating marine traffic safety facilities. First of all the reduction rate marine accidents was estimated to do it, and the detail model of loss aversion cost was constructed Then each variable in the model was defined and the method of computation presented.

A study on the use of lighthouse as marine tourism resources (등대의 해양관광자원으로서 활용방안 연구)

  • Lee, Han-Seok;Shim, Mi-Sook
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2009.06a
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    • pp.498-501
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    • 2009
  • With increase of people's leisure time for marine facilities it is expected to increase the demand for marine tourism. It is necessary for lighthouse to meet the demand for marine tourism. Now, the lighthouse is not only functioning as a traditional aids to navigation for vessel, but also it becomes the new facility and space for all civilians who might visit and experience the marine culture. This research suggests how to use the facilities of the lighthouse as marine tourism resources by reviewing the cases of domestic lighthouses.

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Recent Prospect of Compounds Derived from Marine Macroalgae for Medicinal Application of Anti-Inflammation for Chemoprevention of Cancer

  • Kim, Moon-Moo
    • Journal of Marine Bioscience and Biotechnology
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    • v.5 no.4
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    • pp.8-14
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    • 2011
  • Although marine living organism contains a numerious number of compounds, it is difficult to collect these compounds in a large scale for medicinal application. However, in recent years, several bioactive compounds isolated from marine macroalgae have been proved to be able to provide potential sources for development of medicinal products because they can be obtained in large amount from marine. A number of studies have reported a variety of effects of marine macroalgae but a few anti-inflammatory activity of marine macroalgae have recently been published. Herein, we reviewed novel anti-inflammatory compounds recently isolated from marine brown algae, green algae and red algae. From this survey, in particular, some compounds contained in edible macroalgae exert anti-inflammatory effects with inhibition on cyclooxygenase-2 (COX-2), inducible nitric oxide synthase(iNOS) and matrix metalloproteinases (MMPs) activity regulated by nuclear factor-kappa B transcription factor that play a key role in cancer as well as inflammation, demonstrating to be able to potentially apply to development of anti-inflammatory agent for chemoprevention of cancer. Furthermore, some macroalgae and their compounds with both excellent anti-inflammatory activity and very low toxicity can select a potential candidates capable of preventing or treating several chronic inflammation such as colitis, hepatitis and gastritis, leading to cancer.

Intermittent chlorination shifts the marine biofilm population on reverse osmosis membranes

  • Jeong, Dawoon;Lee, Chang-Ha;Lee, Seockheon;Bae, Hyokwan
    • Membrane and Water Treatment
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    • v.10 no.6
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    • pp.395-404
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    • 2019
  • The influence of chlorine on marine bacterial communities was examined in this study. A non-chlorine-adapted marine bacterial community (NCAM) and a chlorine-adapted bacterial community (CAM, bacterial community treated with $0.2mg-Cl_2/L$ chlorine) were cultivated for 1 month. A distinct difference was observed between the NCAM and CAM, which shared only eight operational taxonomic units (OTUs), corresponding to 13.1% of the total number of identified OTUs. This result suggested that chlorine was responsible for the changes in the marine bacterial communities. Kordiimonas aquimaris was found to be a chlorine-resistant marine bacterium. The effect of intermittent chlorination on the two marine biofilm communities formed on the reverse osmosis (RO) membrane surface was investigated using various chlorine concentrations (0, 0.2, 0.4, 0.6 and 0.8 mg $Cl_2/L$). Although the average number of adherent marine bacteria on the RO membrane over a period of 7 weeks decreased with increasing chlorine concentration, disinfection efficiencies showed substantial fluctuations throughout the experiment. This is due to chlorine depletion that occurs during intermittent chlorination. These results suggest that intermittent chlorination is not an effective disinfection strategy to control biofilm formation.

Ecklonia cava (Laminariales) and Sargassum horneri (Fucales) synergistically inhibit the lipopolysaccharide-induced inflammation via blocking NF-κB and MAPK pathways

  • Asanka Sanjeewa, K.K.;Fernando, I.P.S.;Kim, Seo-Young;Kim, Won-Suck;Ahn, Ginnae;Jee, Youngheun;Jeon, You-Jin
    • ALGAE
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    • v.34 no.1
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    • pp.45-56
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    • 2019
  • Ecklonia cava (EC) has been widely utilized as an ingredient in commercial products such as functional foods and cosmeceuticals. Recently it has been found that Sargassum horneri (SH) has been invading on Jeju Island coast area by its huge blooming. Moreover, both seaweeds are considering as important ingredients in traditional medicine specifically in East-Asian countries (China, Japan, and Korea). In the present study, we attempted to compare anti-inflammatory properties of 70% ethanolic extracts of EC (ECE), SH (SHE), and their different combinations on lipopolysaccharide (LPS)-activated RAW 264.7 cells. Results indicated that 8 : 2 combinations of ECE : SHE significantly inhibited LPS-activated inflammatory responses (cytokines, protein, and gene expression) in RAW 264.7 macrophage cells compared to the respective extracts and other combinations. The synergistic effect of ECE and SHE was found to be prominent than the effects of ECE or SHE alone. These observations provide useful information for the industrial formulation of functional materials (functional foods and cosmeceuticals) using these two particular seaweeds in Jeju Island of South Korea.

Consideration of the Possibility of Excursion Ship Passage in Busan North Port using Marine Traffic Assessment Index

  • Park, Young-Soo;Lee, Myoung-ki;Kim, Jin-kwon;Lee, Yun-Sok;Park, Min-Jeong
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.25 no.3
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    • pp.298-305
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    • 2019
  • The demand for the revitalization of marine tourism in Busan North Port is increasing due to changes in functions such as an increase in harbor traffic volume and the expansion of marine leisure space in Busan. As a result, Busan City plans to set a phased alleviation target for prohibition of cruise ship operations, and to lift the prohibition of excursion ship operations in North Port following the cancellation of the prohibition of excursion ship operations in South Port in 2017. The purpose of this study is to evaluate the risk of excursion ship operations in Busan North Port by applying the marine traffic assessment index and to examine the possibility of excursion ship operations. For this purpose, port status, marine accidents, and traffic flow of Busan North Port were investigated. In addition, marine traffic assessment indexes, such as traffic congestion, risk based on an ES Model, and IWRAP MkII, a maritime risk assessment tool, were used to assess the risk and possibility of excursion ship operations in Busan North Port. This study can be used as basic data for analyzing the risk factors that may occur when excursion ships are operated in Busan North Port and to define how excursion ships should operate, with related safety measures.

Review of the marine environmental impact assessment reports regarding offshore wind farm

  • Oh, Hyun-Taik;Chung, Younjin;Jeon, Gaeun;Shim, Jeongmin
    • Fisheries and Aquatic Sciences
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    • v.24 no.11
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    • pp.341-350
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    • 2021
  • The energy production of offshore wind farms plays an important role in expanding renewable energy. However, the development of offshore wind farms faces many challenges due to its incompatibility with marine environments and its social acceptability among the local community. In this study, we reviewed the marine environmental impact assessment status of offshore wind farm development projects for 2012-2019 in South Korea. A total of nine projects were selected for this study, all of which experienced considerable conflict with local fisheries resources. To appropriately respond to the underlying challenges faced by offshore wind farm development and in order to better support decision-making for future impact assessment, our findings identified: i) a need for adequate preliminary investigation and technical examination of fisheries resources; ii) a need to assess and estimate the impact of underwater noise, vibration, and electromagnetic waves on fisheries resources during wind farm construction and operation; and iii) a need for a bottom-up approach that allows for communication with local stakeholders and policy-makers to guarantee the local acceptability of the development.