• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2017.11a
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• pp.13-15
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• 2017

지난 50년 동안 우리나라 근해의 해양사고통계에 따르면 해양사고의 36%가 선박충돌사고로 나타나고 있고 이로 인해 막대한 재산피해, 인명손실 및 환경피해가 발생되고 있다. 한국형이네비게이션사업은 우리나라 근해에서 발생하는 이러한 해양사고를 획기적으로 줄이기 위한 것으로 현재 연구가 진행중이다. 본 연구는 한국형이네비게이션의 최적안전항로서비스에 필요한 충돌위험도평가모델을 개발하는 것이 목적이다. 개발된 충돌위험도평가모델은 과거의 AIS 데이터를 기반으로 주어진 항로의 충돌위험도를 계산한다. 모델의 계산 및 결과를 도시하기 위해 MATLAB 및 MATLAB 기반의 M-Map 패키지가 사용되었다. 개발된 모델의 검증을 위해 정상작동 여부를 확인하기 위한 시험해역 적용과 현장 적용성을 검토하기 위한 실해역 적용이 각각 수행되었으며 그 유용성을 확인할 수 있었다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.555-557
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• 2023

해양의 영향을 많이 받는 우리나라의 지리적 특성상 해양 상황은 산업 및 생업과 밀접한 관계가 있다. OPEN API 를 이용하여 유향/유속, 조위등 해양 환경관련 실시간 시계열 데이터를 수집한 후 2 차원 공간에 표시하여 순환 신경망 모델을 이용하여 학습한다. 학습된 모델을 실제 데이터에 적용하여 파랑을 예측한다. 시계열의 성격이 있고 공간상에 표시할 수 있는 데이터라면 본 논문에서 제시한 체계를 통해 예측할 수 있을 것이라 예상한다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.06a
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• pp.217-226
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• 2008

최근 들어 U-City 구축 사업을 수행하고 있는 대다수의 지자체에서는 U-City건설지원법에서 규정하고 있는 U-도시기반시설의 서비스 모델을 정립하고 체계화 하기위해 노력하고 있다. 그 중 공간정보 수요가 높은 도로, 상 하수도 시설물은 국토해양부의 주관하에 90년말부터 현재까지 매칭펀드 사업을 통해 DB 및 시스템을 구축하도록 유도해 왔다. 그러나 정부차원의 이러한 사업이 지자체 지리정보 담당부서와 지하시설물 관리 담당 공무원들 중심으로 단순히 공간정보의 조회 및 편집차원에서 추진되고 있어 활용에 대한 한계가 발생하고 있다. 본 연구는 국토해양부에서 주관하고 있는 '지능형 도시 지하시설물 관리 기술 개발' R&D 사업을 통해 이러한 한계를 극복하고 기존 상 하수도 단위시스템에서 제공하는 조회 및 편집기능이외에도 USN 및 RFID를 적용하여 활용할 수 있는 지능화된 지하시설물 관리업무를 도출하고, 기존 상 하수도 단위시스템과의 연계 모델을 제시하고자 한다.

• Journal of Navigation and Port Research
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• v.42 no.6
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• pp.491-500
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• 2018

Due to changes in the distribution industry, inner harbors have been on a sharp decline in the recent past. However, through the application of the right development plans, such harbors can be revitalized into vibrant urban areas again. The importance of inner harbors has been recognized by the relevant authorities in Korea which are now pushing forward with redevelopment plans for its inner harbors. This study proposes a new approach to redevelopment plans based on the recognition that inner harbors have unique characteristics involving both inland areas and the ocean. In the study, representative inner harbors were selected and analyzed comparatively according to two distinct concepts of location: the Gateway Concept and the Central Place Concept. Based on these concepts, the conditions of the inner harbors were examined. Their location can be typed, and development directions were proposed according to their types and conditions. However, difficult points such as isolation and separation between an urban district and the harbor area, can be obstructions to their potential revival. An inner harbor needs to be considered as an intermediary, connecting place between the ocean and the city, not as another ordinary development area. In addition, a redevelopment plan should be accompanied by a strategic viewpoint to make the most of this feature.

• Korean Business Review
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• v.22 no.2
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• pp.157-179
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• 2009

This papers aims to focus on the city marketing as the green growth policy strategies using a case study of Gangneung City, Republic of Korea. In the case study it was verified the fields of urban growth including ecology, culture, alternative and recycled energy, green transportation system. The implications of the study were as follows: First, the city government had regenerated the coastal pine forest through removing unlicensed buildings which were squatted down in decades. Secondly, the city government has recognized the value of culture that possessed various types of cultural asserts. Thirdly, it is possible to use and produce the ocean energy with the tidal power plant, wind power plant and green deep water because Gangneung City has the ocean-oriented image and is located the coastal region. Lastly, the city government has been utilizing the LED traffic light using solar heat and is going to apply the green car like an electric car. This paper indicates the importance of the alternatives of the green growth-oriented policy through city marketing using the concept of culture and ecology. The city government will strive after an advanced triple bottom line with the ecological sustainability, cultural diversity and economic effectiveness in the near future.

• Journal of Navigation and Port Research
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• v.33 no.8
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• pp.539-548
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• 2009

This work aims to highlight the importance and role of the theme and message of BIE exhibitions in the 21th century, and to suggest essential points concerning the preparation of the Expo 2012 Yeosu which would focus on the theme and urban development. After the Expo '98 Lisbon, the theme and message of Expo has been changed from focusing on the progress of technology itself to rethinking of progress itself and focusing on the future of the globe. This change also reflects the need to solve the problems of global environment problem in today's human society and to pursue the new technology which enable to make sure sustainable development. Because the Expo Yeosu, whose theme is the sea and coast, is compared to case of Expo Lisbon whose theme is ocean, we need to make a benchmarking the case of the Expo Lisbon and to make efforts to differenciate the case of the Expo Lisbon. This article suggests concerning the theme and urban development plan of the Expo Yeosu as follows: First, to propose current and future cutting edge technology to utilize the resources of the ocean and the coast and to propose the Yeosu Project, a capacity-building program designed to address various challenges confronting developing countries. Second, to propose a different urban redevelopment plan of capital Lisbon, ie to propose sea port cities network to link the advent of the Namhaeansidae.

• Journal of Navigation and Port Research
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• v.46 no.3
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• pp.227-235
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• 2022

The purpose of this study was to analyze the risk and vulnerability of marine accidents based on statistical data on marine accidents at Ulsan Port, which has the largest amount of liquid cargo in Korea. It was found to be quite vulnerable to the risk of marine accidents, environmental damage, and vulnerability to environmental pollution accidents. Based on analysis results, marine accident scenarios and accident response strategies were prepared. Additionally, as a response strategy to prepare for large-scale marine pollution accidents at Ulsan Port, it is necessary to establish control equipment and infrastructure, as well as establish a control center to integrate marine accident safety functions. In particular, in the case of liquid cargo specialized ports such as Ulsan Port, considering the size of the cargo volume and the frequency of marine pollution accidents, it is urgent to build professional safety management institutions, which should make the port safer.

• Journal of Navigation and Port Research
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• v.36 no.8
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• pp.651-657
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• 2012

In the Busan North port redevelopment project, which is the first large scale port redevelopment project in this country, it adopted the national landscape plan for competitiveness of port city. Furthermore, it includes many efforts on landscape formation in the process of improvement of ocean city image and enhancement of its value, which fits for the situation and characteristics of the original nature, history, and culture resources, together with all facilities, structures, symbols, and eco green belt. Firstly this study attempted to analyze the characteristics of Busan landscape, Busan city design plan(2010), especially coloring plan, together with the case study of landscape color plan for foreign countries. From the basis of this analysis, it was proposed a landscape enhancement strategy in the Busan North port redevelopment project through the coloring plan and it is expected that the result would be used for the basic data for other redevelopment project.

• Journal of Ocean Engineering and Technology
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• v.33 no.5
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• pp.427-434
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• 2019

Artificial intelligence (AI)-aided research currently enjoys active use in a wide array of fields thanks to the rapid development of computing capability and the use of Big Data. Until now, forecasting methods were primarily based on physics models and statistical studies. Today, AI is utilized in disaster prevention forecasts by studying the relationships between physical factors and their characteristics. Current studies also involve combining AI and physics models to supplement the strengths and weaknesses of each aspect. However, prior to these studies, an optimization algorithm for the AI model should be developed and its applicability should be studied. This study aimed to improve the forecast performance by constructing a model for neural network optimization. An artificial neural network (ANN) followed the ever-changing path of a typhoon to produce similar typhoon predictions, while the optimization achieved by the neural network algorithm was examined by evaluating the activation function, hidden layer composition, and dropouts. A learning and test dataset was constructed from the available digital data of one typhoon that affected Korea throughout the record period (1951-2018). As a result of neural network optimization, assessments showed a higher degree of forecast accuracy.

• 한국해양학회지
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• v.11 no.1
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• pp.25-33
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• 1976

The physical factors and chemical contents were studied at 8 stations within Masan Bay, differing in depth and location with respect to inner and outer harbours. It is a relatively small bay with a long and narrow outlet. The water temperature and salinity at the inner bay was rather subject to change on weather condition of the neighbouring land than on the effects of the water mass of outer bay. The high nutrient contents in the bay were caused by the sewage and industrial activities. The outer harbour was less polluted than that of the inner bay; the high contents were significantly decreased from the entrance of the outer harbour. While the high disolved oxygen contents, over saturation in the surface strata may be the result of nearly all year round phytoplankton blooms, the lack of oxygen contents in the bottom strata were caused by the inadequate mixing of water mass and organic matters. The frequent red tide in the area may be the results of inflowing raw sewage, industrial activities of neighbouring land and inadequate mixing of water masses.