• Title/Summary/Keyword: marine use

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Considering Concepts and Principles of Marine Spatial Management for Sustainable Use of Marine Resources (지속가능한 이용을 위한 해양공간관리의 개념과 원칙에 대한 고찰)

  • Lee, Moon-Suk
    • Ocean and Polar Research
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    • v.33 no.4
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    • pp.497-506
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    • 2011
  • The rapid industrial and technological development has made the human activities for the utilization of marine resources more complex. Marine spatial management is a space-based approach. It is a comprehensive and integrated management approach. The ultimate goal of marine spatial management is the "sustainable use" of marine resources. The partial approach is applied in the existing marine spatial management, mainly coastal zones which involves integrated approach. Also this showed various limitations including restricted mostly to coastal zones, and limitation to implementation tools. However, for marine spatial management to have a reasonable approach that attaches importance to the relationship between humans and the holistic ecosystem, it is important to internalize a central principle in marine spatial management that focuses on the sustainable use of marine resources. In the present study, four central principles are proposed that will eventually be applied through marine spatial management planning tools. These principles are 1) the establishment of a cooperative decision making and planning system that is based on stakeholder participation; 2) scientific assessment of the current status and impact on the basis of ecology, sociology, and economics; 3) reasonable and optimal spatial assignment based on the forecasting of future-use characteristics and environmental changes; and 4) ascribing importance to the implementation of the results of rational planning processes.

On the Bridge Construction in Marine by GPS (GPS측량을 이용한 연륙교 가설공사에 관한 연구)

  • 오창수;최광희;임학량;조형식
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.11a
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    • pp.111-116
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    • 2004
  • This study is given that on the bridge construction in marine by GPS, specially, choice of station for footing construction of marine bridge. You can get positive datum in the checking of marine excavation, if you use together Total Station and GPS. In the result of comparision of upper surveying methods, Surveying datum is gotten error of less than 30mm(The depth of water 10~l5mm, station 7~10mm). This study show that hereafter if you use GPS in bridge construction in marine you can get accurateiy datum.

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An Attempt to the Legal Problems on the Approved Books in Fisheries and Marine Sciences Education (수·해양 전문계고 인정도서 제도의 법적 문제와 과제)

  • Park, Chang-Un;Cha, Cheol-Pyo
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.1
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    • pp.65-77
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    • 2013
  • This study is to suggest the legal issues and some question to solve on the approved books in fisheries and marine sciences education. The results of the study are following. First, It discuss the legal meaning on the approved books. The meaning of the approved books means the curriculum books are subject to an approval by the Minister of Education, Science and Technology in order to use term in case where there exist no government-designated books and authorized, or where it is difficult to use term or it is necessary to supplement them. Second It deals with the legal issues on the approved books in fisheries and marine science education. The main issue is in harmony with the regimentation and self-regulation of education. This matter is the legal problems on the power for the standards of the textbooks approval and the rights for the organization of the textbooks. Third, It treats the problems of the approved books in fisheries and marine sciences education. The problems is system of statute and concept of approved books, the rights of nation and local government, standards of approved books, and writing and practical use of approved books. I generalize legal issues on the approved books in fisheries and marine sciences education. Hence, it is necessary to deeply study each subject in the legal aspect of the approved books in fisheries and marine sciences education.

Potential applications of radioprotective phytochemicals from marine algae

  • Oh, Jae-Young;Fernando, I.P. Shanura;Jeon, You-Jin
    • ALGAE
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    • v.31 no.4
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    • pp.403-414
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    • 2016
  • The use of ionizing radiation and radioactive elements is becoming increasingly popular with the rapid developments in nuclear technology, radiotherapy, and radio diagnostic methods. However, ionizing radiation can directly or indirectly cause life-threatening complications such as cancer, radiation burns, and impaired immunity. Environmental contamination with radioactive elements and the depletion of ozone layer also contribute to the increased levels of radiation exposure. Radioprotective natural products have particularly received attention for their potential usefulness in counteracting radiation-induced damage because of their reduced toxicity compared with most drugs currently in use. Moreover, radioprotective substances are used as ingredients in cosmetic formulations in order to provide protection against ultraviolet radiation. Over the past few decades, the exploration of marine algae has revealed the presence of radioprotective phytochemicals, such as phlorotannins, polysaccharides, carotenoids and other compounds. With their promising radioprotective effects, marine algae could be a future source for discovering potential radioprotective substances for development as useful in therapeutics.

A study on the use of pure palm oil (biodiesel-DO) as an alternative fuel on the fuel supply system of marine diesel engines

  • Uy, Dang Van
    • Journal of Advanced Marine Engineering and Technology
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    • v.37 no.7
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    • pp.685-693
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    • 2013
  • The biodiesel used as an alternative fuel for diesel engines is well- known, however the price of the bio-diesel is still higher than conventional diesel oil (DO) by 10% to 15% depending on a kind of bio-oil and a country producing the bio-diesel. One of idea to reduce the price of bio-diesel is to use the pure bio-oil as fuel for marine diesel engines, because to use the pure bio-oil as fuel without the esteritification process can reduce the price of bio-fuel. At present time, some experts in some countries who have been carrying out experiments on the use of pure bio-oil produced from rape seeds, sunflower seeds... as fuel for marine diesel engines have achieved important results. In recent years, at Vietnam Maritime University we also have been using the pure palm oil and its blended fuel (Palm oil and DO) as fuel for marine diesel engines in laboratory and on board of ships. The blended fuel is a mixing fuel of the pure palm oil and diesel oil with content of pure palm oil by 5%, 10%, 15%, 20% and 35%. In this paper, we would like to present some results from our experiments to investigate the impacts of using the palm oil and its blended fuel on the important technical features of the fuel supply system of marine diesel engines such as the fuel supply amount for one cycle, fuel supplying pressure, ignition delay time and so on. The results from the research will be good fundamental parameters to support proper operation of marine diesel engines using bio-oil and blended fuels as alternative fuel in near future.

An Experimental Study on the Low Permeability Concrete with the Marine Wastes (해양폐기물을 이용한 수밀콘크리트 개발에 관한 연구)

  • 백신원;김인배
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 2003.05a
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    • pp.74-79
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    • 2003
  • Many marine wastes such as seaweeds are casted aside at the seasides. So, the objective of this study is to apply the marine wastes to the concrete. To this end, mortar and concrete tests with the marine wastes have been conducted. The results of the present mortar and concrete tests indicate that the mortar and concrete with marine wastes admixtures exhibits very low permeability. The present study provides a firm base for the use of very low permeable concrete and the application of the marine structures and the submerged structures.

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A Study on the Determination of the Main Design Parameters for the Development of Marine Stirling Engines (박용 스터링엔진 개발을 위한 주설계변수 결정에 관한 연구)

  • 이택희;이명호;이종원
    • Journal of Advanced Marine Engineering and Technology
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    • v.17 no.4
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    • pp.63-72
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    • 1993
  • This paper deals with the determination of the main design parameters on the efficient .betha. type stirling engine for marine use having the rhombic drive mechanism. This studies are performed as following. (1) The characteristics of $\beta$ type stirling engine, (2) The kinds of driving mechanism, (3) The structure of rhombic drive mechanism, (4) The reasons of making choice of the rhombic drive mechanism in $\beta$ type stirling engines, (5) Ultimately the purpose of this paper is to determine the main design parameters of $\beta$ type stirling engines for marine use having the rhombic drive mechanism. Finally, We can adapt the result of this paper in designing of $\beta$ type stirling engine driven by the rhombic drive mechanism.

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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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Characteristics of sustainable fashion design in Marine Serre collection (마린 세르 패션 컬렉션에 나타난 지속가능 디자인 특성)

  • Soohyun Lee;Younhee Lee
    • The Research Journal of the Costume Culture
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    • v.32 no.1
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    • pp.108-123
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    • 2024
  • This study aimed to explore sustainable fashion design plans and directions by analyzing Marine Serre's collection. Previous research was reviewed to derive classifications of the aesthetic characteristics of sustainable fashion design. This classification was then used to analyze the characteristics of the Marine Serre collection. Design analysis was conducted on Marine Serre's 2018 FW to 2023 SS collections. Marine Serre's sustainability characteristics are functionality, surprise, handicraft, and inclusion. The results are as follows. First, functionality is the highest among the four characteristics and includes the functionality of movement, the functionality of form, and futurism. This characteristic was observed in the use of all-in-one body suits, pockets, and workwear, showing the will and values of designers who value daily activity. Second, surprise includes the scarcity of materials and the unexpectedness of composition. The value of the clothing is enhanced by the use of scarce materials not typically used in clothing. In addition, Marine Serre is highly regarded for expanding clothing into life by incorporating material upcycling into the theme of the collection. Third, handcrafted features include exaggerated decorations, logo, retro designs, and natural properties, and intentional utilization is differentiated. Marine Serre's signature pattern suggests a suitable expression for the fabric to use the crescent moon for the season. Fourth, the collection expresses themes of inclusivity and cultural diversity. The results indicate that Marine Serre wants to contribute to a better future characterized by global coexistence.

Vacuum Cooling System and Their Use (진공냉각장치와 그 이용)

  • 김명환;김경근;박형진
    • Journal of Advanced Marine Engineering and Technology
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    • v.19 no.4
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    • pp.7-16
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    • 1995
  • This article describes the working prnciple, structure and main characteristics of vacuum coolers for vegetables, and gives concrete examples of vacuum coolers that srebeing put to practical use. In particular, newly-developed cavuum coolers with cold storage, utilizing night-time electricity, are focused upon. Processing plants for vegetables, cold-storage rooms and vacuum cooling devices were investigated as possible application of vacuum cooling technology.

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