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검색결과 106건 처리시간 0.023초

객체메모리모델을 이용한 모바일 전자상품권 설계 (Design of a Mobile Electronic Voucher Using Object Memory Model)

  • 이성호;차병래;김대규;정기봉;지유강
    • 한국항행학회논문지
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    • 제17권5호
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    • pp.552-559
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    • 2013
  • 최근 모바일을 통한 전자상거래가 증가함에 따라, NFC 기반의 전자상품권 결제 연구가 활발하게 진행되고 있다. 하지만, 대부분의 연구가 전자상품권을 이용한 결제방법에만 집중되어 있어서 전자상품권의 유통이력 추적을 위한 연구는 부족하다. 이러한 문제를 해결하기 위해, 본 논문에서는 전자상품권 유통정보를 저장하기 위한 방법을 제안한다. 제안하는 방법은 전자상품권에 객체메모리모델(OMM)을 적용한다. 전자상품권이 발행되고, 다른 사람에게 양도되고, 결제에 사용될 때마다 관련된 정보가 전자상품권의 객체메모리에 저장된다. 그래서, 우리가 제안하는 전자상품권의 객체메모리는 세 가지 형태의 블록을 갖고 있어서, 전자상품권의 발행, 양도, 결제에 대한 각 정보가 저장된다. 우리는 이 정보를 이용하여 전자상품권의 유통이력을 검색하고 분석할 수 있다. 향후에는 제안한 전자상품권을 구현하고, 유통정보를 분석하는 방법을 제안할 계획이다.

국제해난구조협약의 개정 및 문제점 -사법적 문제를 중심으로- (Some Issues on the Rivision of the 1910 International Salvage Convention and in Particular the Question in Private Law)

  • 박용섭
    • 한국항해학회지
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    • 제9권2호
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    • pp.65-97
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    • 1985
  • According to the report prepared by Legl Committee of IMO, 1978, since the disaster of motor tanker Amoco Cadiz carrying approximate 220, 000 tons of crude oil was wrecked on the coast of France and damaged the largest oil pollution accident in shipping history, Legal Committee of IMO has studied and discussed a new Salvage Convention with assistance of CMI. CMI has prepared a new draft convention under the chairmanship of professor Erling Chr. Selvig and adopted it as a report of CMI to IMO in the 32 Internaltional Conference of CMI, Montreal, May, 1981. This paper has been written to study comparatively andinterprete the questions and/or considerations of the new draft convention by the delegates participated in the Legal Committee of IMO in particular on the private legal view of it. This Salvage Convention Draft has not yet been deliberated thoroughly to agreed the revisiion of the 1910 Convention in accordance with CMI Report 1981 until session 54, March 1985. Therefore this paper has been prepared in the light of the comments made at the Legal Committee in order to interpret the legal questions and contents of the new draft.

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The Analysis of MOUs and their Activities Related to Port State Control

  • Min, Byung-Sun;Kim, Soon-Kap;Kong, Gil-Young;Kim, Chol-Seong;Lee, Yoon-Sok;Kim, Jung-Man;Lee, Chung-Ro
    • 한국항해항만학회지
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    • 제27권3호
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    • pp.321-327
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    • 2003
  • The Memorandum of Understanding (MOU) is the document of intent signed between the Port States Control(PSC) to undertake a uniform as agreed. Though the MOU is not a legally binding, in case where the agreed items are violated without a just cause, the denunciation will follow. International Maritime Organization (IMO) and regional MOUs have been making amendments and reinforcing the relevant requirements, so that port State Authorities can effectively eradicate the substandard vessels. However, the various problems have arisen due to the existence of different requirements of each MOU, the lack of information exchange between each MOU, the lack of uniform PSC implementation within the same MOU and the lack of adequate system due to the short history of MOUs. In this paper, the MOU records for three years (1999∼2001) were analyzed according to each MOU, type of ship, deficiency code, classification society, the number of inspected ships and the number of detained ships to assess the problems (Statistics during 2002 will be published after August 2003). The purpose of this study is to help better understand the PSC activities within each MOU and to establish effective countermeasures by grasping the problems that exist in the PSC at present.

Impact Analysis on the Coastal Erosion and Accretion due to Relocation of the Breakwaters

  • Lee, Seung-Chul;Lee, Joong-Woo;Kim, Kang-Min;Kim, Ki-Dam
    • 한국항해항만학회지
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    • 제32권4호
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    • pp.305-313
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    • 2008
  • Recently it was known that the problems of nearshore processes and damage of berth and counter facilities frequently had appeared at the small fishery port, such as Daebang near Samcheonpo city, Korea. Here we try to analyze the impact of the rearrangement of counter facilities and berth layout adopted for tranquility of its inner harbor. Because this harbor is being connected to Daebang channel, the rearrangement of the structures might affect to the current speed and direction and wave height, so do to the sea bottom undulation. Therefore, we made model test for the several layouts of the berth and breakwater in this area. Numerical model result shows that the bottom was eroded by 1m by tidal currents and the speed of flow did not shrink, even after the construction work was completed. The direction of the sand movement was downdrift. Although the model study gave reasonable description of beach processes and approach channel sedimentation mechanism, it is necessary to compare with the field history, including the records of waves, tides and bottom materials, etc. for better prediction.

A Study on the Prospect of the Maritime Transport Market Integration in the Northeast Asia

  • Kim, Tae-Seung
    • 한국항해항만학회지
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    • 제30권7호
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    • pp.585-590
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    • 2006
  • Though the issue on the integration of maritime transport market in Northeast Asia has a long history, there has never been any notable progress. Especially the lack of country-wise analysis on the barriers of market integration appears as a serious problem for more concrete discussion and the design of the roadmap for market integration. This study analyzes the maritime market of each country in the aspect of infrastructure provision, the development of the industry, change of institutions, and network connectivity and compare the competitiveness of 3 countries in the Northeast maritime market. Furthermore this study analyzes the barriers for market integration on the basis of bilateral relation, i.e. Korea-Japan, Korea-China and Japan-Korea. Based on these analyses, this study finds out the fact that the most serious barrier for market integration among 3 countries is the egocentric policies for the protection of industries in each country rather than any other institutional or physical barriers. In conclusion, this study argues that 3 countries should try to find out a third policy alternative which can make 3 countries enjoy the win-win game, such as route integration among 3 countries and joint venture for the liners operated in the region.

Waterscape and Water Transportation in Nihombashi River

  • Ito, Kazumasa;Wada, Akira;Imanishi, Yumi
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2008년도 학술발표회 논문집
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    • pp.19-25
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    • 2008
  • Nihombashi district, which is located in a heart of Tokyo Metropolitan area, has been flourished as a Japanese economic and cultural center since Tokyo was developed as a capital. Nihombashi district has still remained the Edo idea of stylishness since the government of Edo was established in 1603. During Edo period, population of Edo (former name of Tokyo) reached one million. Edo became one of big city around the world. Nihombashi district has been transformed as economical, financial and cultural center, along with modern transformation of Tokyo. During high economic growth (1955-1975), Nihombashi Bridge and River, which used to a symbol of Tokyo, have been covered with elevated highways. The river was polluted whereas the river does not have any relationship with people's daily activities. Since Japan has focused on environment concern in 80's, people and companies in Nihombashi district and Nihombashi River also requested to restore Nihombashi district and Nihombashi River. There are a lot of projects going on related to regenerate the river and the community, such as to remove highways covered with the river, restore river environment and run water navigation. This article mentioned to introduce the project of Nihombashi River and Nihombashi district that regenerate the community to capitalize history and geographic characteristics in Nihombashi district, to run water navigation through the river, and to review outcomes through various projects.

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고대중조해상교왕일\ulcorner반문화교류 (Ancient Sino-Korea Sea Communication and Ship-cultural Exchange)

  • ou, Xin-Yuan
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2000년도 Proceeding of CIN-KIN Joint Symposium 2000 on M.E.T. Under STCW 78/95 and SINO-KOREA MARITIME CONTACT IN MID-CENTURIES
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    • pp.171-183
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    • 2000
  • Regarding the ancient Sino-Kroea sea communication as the main theme, the propagation of the China-culture in Koran Peninsula and he influence of Chinese ancient shipbuilding technique for Korea are described in the paper. Frequent sea trade resulted in the flourishing of Chinese and Korean harbours on both side of Yellow Sea. Sino-Koran sea communication is of long-standing. Korean Peninsula (KP) is just as the large arm extended to the great sea from the North-east China. It is the Chinese mainland plate-lump's extended part in the Yellow Sea. In the ancient time, the land communication between China and Korea was often not unimpeded, the contact between China and KP, such as the South-Korea, depended on the sea communication mainly, Although the friendly relationship between China and Korea rose one after another in the various historical period, but considering from the great background of people's historical development, just as the modern people benefited fro the Europe-American culture, the people of ancient time also benefited from the China-culture. All China, KP and Japan obtained the development by propagating the ancient China-culture. The seagoing ships which carried out the Sino-Korea sea communication and trade, as the friendly envoys, finished the mission linked u and developed the Sino-Korea culture contact.

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스마트 응급의료 시스템 구현 (Implementation of the Smart Emergency Medical System)

  • 박홍진
    • 한국항행학회논문지
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    • 제15권4호
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    • pp.646-654
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    • 2011
  • 최근 구급차에 탑승하는 응급 구조사의 인원이 턱없이 부족하여 소방관 한 사람만이 구급차에 타고 환자를 이송하는 일이 종종 문제시 되곤 한다. 응급환자가 발생 시 신속하고 정확한 조치가 무엇보다도 필요하며 특히, 환자에게 적합한 의료기기가 있는 전문적인 병원으로 이송해야한다. 본 논문은 스마트 폰을 이용하여 병원 전 단계의 응급의료 시스템을 구현한다. 구현된 시스템은 환자 이송 중에 환자의 심박동을 실시간적으로 모니터링이나, 과거 환자의 병력 정보 등을 파악할 수 있으며, 환자가 필요로 하는 응급 병원 정보도 제공하여 병원 전 단계에서 응급 환자에게 신속하고 효율적인 처치가 가능한 환경을 제공한다.

Gliosarcoma of Cerebello-Pontine Angle: A Case Report and Review of the Literature

  • Yoon, Gi-Yong;Oh, Hyuk-Jin;Oh, Jae-Sang;Yoon, Seok-Mann;Bae, Hack-Gun
    • Brain Tumor Research and Treatment
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    • 제6권2호
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    • pp.78-81
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    • 2018
  • Gliosarcoma (GS), known as variant of glioblastoma multiforme, is aggressive and very rare primary central nervous system malignant neoplasm. They are usually located in the supratentorial area with possible direct dural invasion or only reactive dural thickening. However, in this case, GS was located in lateral side of left posterior cranial fossa. A 78-year-old man was admitted to our hospital with 3 month history of continuous dizziness and gait disturbance without past medical history. A gadolinium-enhanced MRI demonstrated $5.6{\times}4.8{\times}3.2cm$ sized mass lesion in left posterior cranial fossa, heterogeneously enhanced. The patient underwent left retrosigmoid craniotomy with navigation system. The tumor was combined with 2 components, whitish firm mass and gray colored soft & suckable mass. On pathologic report, the final diagnosis was GS of WHO grade IV. In spite of successful gross total resection of tumor, we were no longer able to treat because of the patient's rejection of adjuvant treatment. The patient survived for nine months without receiving any special treatment from the hospital.

반강접 접합부를 적용한 초대형 부유식 구조물 상부구조체에 대한 동적해석 (Dynamic Analysis of Superstructures on Very Large Floating Structure with Semi-Rigid Connections)

  • 송화철;김우년
    • 한국항해항만학회지
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    • 제29권5호
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    • pp.389-394
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    • 2005
  • 초대형 부유식 구조물의 경우 지진하중보다 파랑하중에 의한 영향이 크게 작용하기 때문에 파랑하중에 의한 하부부체의 변형이 상부구조물에 부가모멘트를 발생시키는 요인이 된다. 이러한 부가모멘트를 저감시키기 위해 본 연구에서는 강접합과 핀접합 사이의 거동을 하는 반강접 접합부를 적용하였다. 초대형 부유식 구조물의 상부구조체에 반강접 접합부를 적용할 경우 보의 부가모멘트를 감소시킬 수 있으며, 더욱 경제적인 설계가 가능하다. 본 논문에서는 4경간 3층 예제구조물에 대하여 파랑하중에 의한 영향을 분석하고, 구조물의 반강접 접합부 적용에 따른 효율성을 검토하였다. 접합부는 각형강관 외-다이아프램 접합부를 적용하였으며 파랑하중에 의한 동적 특성을 분석하기 위하여 시간 이력해석을 수행하였다. 초대형 부유식 구조물의 상부구조물의 경우 파랑하중에 의해서 정하중의 최대모멘트 응답이 강접 구조물에서는 $33\%$ 증가하였으며, 스프링 모델을 이용한 반강접 구조물에서는 $26\%$ 증가하였다.