• Title/Summary/Keyword: Marine Information

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Development of a Batch-mode-based Comparison System for 3D Piping CAD Models of Offshore Plants (Aveva Marine과 SmartMarine 3D간의 해양 플랜트 3D 배관 CAD 모델의 배치모드 기반 비교 시스템 개발)

  • Lee, Jaesun;Kim, Byung Chul;Cheon, Sanguk;Cho, Mincheol;Lee, Gwang;Mun, Duhwan
    • Korean Journal of Computational Design and Engineering
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    • v.21 no.1
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    • pp.78-89
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    • 2016
  • When a plant owner requests plant 3D CAD models in the format that a shipbuilding company does not use, the shipyard manually re-models plant 3D CAD models according to the owner's requirement. Therefore, it is important to develop a technology to compare the re-modeled plant 3D CAD models with original ones and to quantitatively evaluate similarity between two models. In the previous study, we developed a graphic user interface (GUI)-based comparison system where a user evaluates similarity between original and re-modeled plant 3D CAD models for piping design at the level of unit. However, an offshore plant consists of thousands of units and thus a system which compares several plant 3D CAD models at unit-level without human intervention is necessary. For this, we developed a new batch model comparison system which automatically evaluates similarity of several unit-level plant 3D CAD models using an extensible markup language (XML) file storing file location and name data about a set of plant 3D CAD models. This paper suggests system configuration of a batch-mode-based comparison system and discusses its core functions. For the verification of the developed system, comparison experiments for offshore plant 3D piping CAD models using the system were performed. From the experiments, we confirmed that similarities for several plant 3D CAD models at unit-level were evaluated without human intervention.

A Study on the Strategic Plan for Honam Sea Grant College Program (호남지역 Sea Grant 사업단의 발전방향에 관한 연구)

  • Nam, Taek-Kun;Lee, Don-Chool;Yim, Jeong-Bin
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.13 no.3
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    • pp.183-189
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    • 2007
  • In this paper, the strategic plan for Honam Sea Grant College Program will be discussed. The main activity area of Hanam SGCP is research and development, education and public information, outreach. Honam SG theme areas and priorities of its activity area will be determined to enhance the sustainable use and conservation of marine and fishery resources for Honam region. In the education and public information, marine education program executed by MOMAF and relative institutions is introduced and suitable program direction will be suggested. The network composition between HSGCP and other institution in domestic or abroad is also tackled. An interchange of beneficial information is accomplished through the effective network with other organizations. Finally the result of survey to develop the pending problems of Honam area will be discussed.

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Performance Evaluation of a HARQ-ARQ Interaction Scheme for Reliable Communications in Marine Communication Networks (해양 통신 네트워크에서 안정적 통신을 위한 HARQ-ARQ interaction 기법의 성능 평가)

  • Son, Jaekwang;Lee, Seong Ro;So, Jaewoo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39C no.11
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    • pp.1201-1208
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    • 2014
  • As the wireless communication technologies are being studied for application to marine communication networks in a fusion of marine industries and IT technology, this paper proposes a HARQ-ARQ interaction scheme for reliable communication between the smart ships. Moreover, this paper evaluates the performance of the HARQ-ARQ interaction schemes through the computer simulation. In the HARQ-ARQ interaction scheme for marine network systems, as a HARQ acknowledgement is implicitly utilized as an ARQ acknowledgement. Hence, the HARQ-ARQ interaction scheme can reduce the packet delay. However, the HARQ-ARQ interaction scheme has problems caused by the error of HARQ feedback messages. Hence, this paper considers the effect of error of HARQ feedback messages on the performance of the HARQ-ARQ interaction scheme, in marine network systems. The simulation results show that the HARQ-ARQ interaction scheme can improve the delay performance of the ships in the marine network systems.

Curriculum Development for the Department of Marine Products Marketing in Fisheries High Schools (수산계 고등학교 수산물유통과 교육과정 개발)

  • Kim, Sam-Kon;Shin, Jin-Han
    • Journal of Fisheries and Marine Sciences Education
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    • v.13 no.1
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    • pp.1-18
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    • 2001
  • The purpose of this research was to develop curricula for the department of marine products marketing in fisheries high schools. The specific objectives were as follows; 1) To investigate the demand of students, teachers in fisheries high schools, and workers in marine products marketing for the educational program. 2) To analyze the jobs of the marine products marketing fields. 3) To develop curricula for the department of marine products marketing on the basis of the theoretical background and the result of the objective 1) and 2). In order to achieve these objectives, domestic and foreign literatures, research reports, and theses were referred to in order to know the academic classification of fisheries economics and curricula of junior colleges and universities were collected and analyzed. To achieve the first objective, the degree of the students' knowledge of marine products marketing through fisheries management textbook was investigated. And the questionnaire survey of the demand was conducted on the subject of professors at the departments of fisheries management, teachers in the charge of the related courses and those who work for marine products marketing-related firms. The questionnaire was composed of 22 items about the knowledge of marine products marketing and 27 items about the job capacity. To achieve the second objective, the occupations were surveyed on the subjects of the works who work for marine products marketing. They were sampled randomly among the marine products buyers, wholesalers, auctioneers and salespersons. The results of this research were as follows; Taking grades and credits at each subject were made out on the consultation of the experts in marine products marketing. The curriculum of the professional subjects related to marine products marketing in fisheries high schools is suggested as follows; General Fisheries(10th grade, 6 credits, curricular discretionary class), General Oceanography(10th grade, 4 credits, curricular discretionary class), Fisheries Marine Transportation Information(11th grade, 8-12 credits), Marine Products Marketing(11th grade, 8-12 credits), Fishery Sale and Management(11th grade, 8-12 credits), General Fisheries Management(11th grade, 6-8 credits), Accounting Principle(11th grade, 4-6 credits), Marine Products Processing(12th grade, 4-8 credits), Commercial Law(12th grade, 4-6 credits), Management Practice(12th grade, 4-6 credits), Computer Practical Business(12th grade, 4-6 credits), Marketing(12th grade, 4-8 credits), General Marketing Management(12th grade, 6-8 credits), Marketing Information Practical Business(12th grade, 4-6 credits) Marketing Management I(12th grade, 4-6 credits), Marketing Management II(12th grade, 4-6 credits). If this curriculum is adopted, it will meet the demands of the educational aims and the industrial society.

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A Basic Study on Speciality and Standardization of Marine Geographical Names in Korea (해양 지명의 전문성과 표준화에 관한 기초연구)

  • Choi, Yun-Soo;Han, Kil-Soo;Lim, Young-Tae
    • Journal of Korean Society for Geospatial Information Science
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    • v.11 no.3 s.26
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    • pp.41-46
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    • 2003
  • Marine geographical names refer to the names for the geographical forms in nature such as oceans, straits, bays, inlets, and channels as well as the various undersea form including reefs and trenches. Marine geographical forms, lying under the sea, are different from those in land and are related directly and indirectly to the safe navigation of ships, that is, property and life of human beings. Marine geographical names have not been correctly named and used so far as in the case of using the name 'Sea of Japan' instead of 'East Sea' Marine geographical names have been created arbitrarily from various sources including researchers, institutes, and academic societies, which leads to confusion and makes it difficult for those to be acknowledged internationally. This paper examines the uniqueness and technicality of marine geographical names and analyzes the efforts and status for the standardization processes in Korea.

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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.

Risk Classification of Vessel Navigation System using Correlation Weight of Marine Environment (해양 환경 요소 상관관계 가중치를 이용한 선박 항행 시스템의 위험도 분류)

  • Song, Byoung Ho;Bae, Sang Hyun
    • Journal of Integrative Natural Science
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    • v.4 no.1
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    • pp.31-37
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    • 2011
  • Various algorithms and system development are being required to support the advanced decision making of navigation information support system because of a serious loss of lives and property accidents by officer's error like as carelessness and decision faults. Much of researchers have introduced the techniques about the systems, but they hardly consider environmental factors. In this paper, We collect the context information in order to assess the risk, which is considered the various factor of the sailing ship, then extract the features of knowledge context, which is to apply the weight of correlation coefficients among data in context information. We decide the risk after the extract features through the classification and prediction of context information, and compare the value accuracy of proposed method in order to compare efficiency of the weighted value with the non-weighted value. As a result of experience, we know that the method of weight properties effectively reflect the marine environment because the weight accurate better than the non-weighted.

Design of a Marine Leisure Information Retrieval Agent for Mobile Terminal Support of WIPI Environment (WIPI 환경의 모바일 단말기 지원을 위한 해양 레저 정보 탐색 에이전트의 설계)

  • Choi, Hong-Seok;Jung, Sung-Hun;Lim, Jae-Hong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • v.9 no.1
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    • pp.171-174
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    • 2005
  • According as marine leisure industry has developed and the demand of leisure culture has increased rapidly, a desire about service which supply marine safety and connect marine information is enlarging. The performance of personal mobile device has improved and been evolved by composition terminal. So, it became possible that storage and expression of multimedia information as well as simple communication facility. Domestic wireless internet has given development strain to developer and contents Provider(CP) because of different platform. And this has become hindrance factor of wireless internet activation. But, recently, the use of WIPI(Wireless Internet Platform for Interoperability), the wireless internet standard platform, could use different wireless application programs and also guarantee the independency for hardware. We wish to develop contents of download form that supply geographic information of Electronic Navigational Chart(ENC) in the marine that is digitalized to carrying along terminal of WIPI base and various informations for marine leisure. For this, DB that offer ENC and additional information should be constructed. Also, we need server (CPS; Contents provider Server) that offer required contents. In this paper, we design web retrieval agent which store request information to database. When consumer required necessary information through personal mobile device, CPS can inform that by real time. So, we wish to develop agent component that parse informations in various World Wide Webs, and store to database.

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Development of Environmental Management System using Marine Geographic Information System

  • OH Hyun Taik;CHOI Woo-Jeong;PARK Sung-Eun;JUNG Rae-Hong;PARK Jong-Soo
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.562-563
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    • 2004
  • Environmental management system has been constructed using by marine GIS, which is applied latest scientific algorithm, and fisheries related data for the citizens of the Jinhae Bay and executive officers. Through this system, we will get more easily marine environmental data, and production features of aquaculture farming areas.

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