• Korean Journal of Remote Sensing
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• v.39 no.5_4
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• pp.1173-1183
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• 2023

Over the past 20 years, Korea's overall import and export cargo volume has increased at an average annual rate of approximately 5.3%. About 99% of the cargo is still being transported by sea. Due to recent increases in maritime cargo volume, congestion in maritime logistics has become challenging due to factors such as the COVID-19 pandemic and conflicts. Continuous monitoring of ports has become crucial. Various ground observation systems and Automatic Identification System (AIS) data have been utilized for monitoring ports and conducting numerous preliminary studies for the efficient operation of container terminals and cargo volume prediction. However, small and developing countries' ports face difficulties in monitoring due to environmental issues and aging infrastructure compared to large ports. Recently, with the increasing utility of artificial satellites, preliminary studies have been conducted using satellite imagery for continuous maritime cargo data collection and establishing ocean monitoring systems in vast and hard-to-reach areas. This study aims to visually detect ships docked at berths in the Busan New Port using high-resolution satellite imagery and quantitatively evaluate berth utilization rates. By utilizing high-resolution satellite imagery from Compact Advanced Satellite 500-1 (CAS500-1), Korea Multi-Purpose satellite-3 (KOMPSAT-3), PlanetScope, and Sentinel-2A, ships docked within the port berths were visually detected. The berth utilization rate was calculated using the total number of ships that could be docked at the berths. The results showed variations in berth utilization rates on June 2, 2022, with values of 0.67, 0.7, and 0.59, indicating fluctuations based on the time of satellite image capture. On June 3, 2022, the value remained at 0.7, signifying a consistent berth utilization rate despite changes in ship types. A higher berth utilization rate indicates active operations at the berth. This information can assist in basic planning for new ship operation schedules, as congested berths can lead to longer waiting times for ships in anchorages, potentially resulting in increased freight rates. The duration of operations at berths can vary from several hours to several days. The results of calculating changes in ships at berths based on differences in satellite image capture times, even with a time difference of 4 minutes and 49 seconds, demonstrated variations in ship presence. With short observation intervals and the utilization of high-resolution satellite imagery, continuous monitoring within ports can be achieved. Additionally, utilizing satellite imagery to monitor changes in ships at berths in minute increments could prove useful for small and developing country ports where harbor management is not well-established, offering valuable insights and solutions.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2007.11a
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• pp.209-223
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• 2007

B2C, B2B와 같은 인터넷 상거래뿐만 아니라, 전자정부를 통한 G2C 등에서 보는 바와 같이, 공공 및 민간 IX(Internet exchange)를 통한 인터넷 상호연동 인프라는 명실상부한 사회 신경망으로 기능한다. 따라서 전통적인 사회간접자본인 도로, 항만, 전력 등에서와 마찬가지로, 그 구축 및 운영에서의 안정성과 신뢰성에 대한 요구가 점차 강화되고 있다 본 연구는 인터넷 상호연동망의 안정성과 신뢰성을 제고하기 위한 방안을 위험관리 관점에서 제안한다. 먼저, 인터넷 상호연동의 강건성(robustness)을 높이기 위한 방어기제와 더불어 상호연동 대안들을 개발한다. 이들 대안은 장애시에 작동하는 별도의 상호연동 비상망을 운영하는 방재형과, 지역적으로 분산된 상호연동 허브(IX)를 운영하여 장애에 따른 피해 확산을 방지하는 분산 허브형으로 구분된다. 본 논문에서는 또한 대안들의 위험효율성(risk efficiency)을 체계적으로 비교/평가하기 위하여 경영공학 방법론에 의한 위험평가 프레임워크를 개발하고, 이를 투자수준이 상이한 여러 대안들에 적용한다. 몬테카를로 시뮬레이션을 통한 ROI(Risk On Investment) 분석 결과, 방재형 대안이 비용 대비 위험효율성 측면에서 최선의 후보로 평가되었다.

• Review of KIISC
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• v.15 no.6
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• pp.46-52
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• 2005

신원확인을 위하여 생체정보를 수집하거나, 이용하는 데 있어서 준수하여야 할 생체정보 보호대책에 관한 중요사항을 정함으로써 생체정보의 안전한 이용 환경을 조성하고, 개인의 권리와 이익을 보호하는 것을 목적으로 한다. 본고에서는 유무선 통신환경에서 생체정보가 수집${\cdot}$저장${\cdot}$전송${\cdot}$폐기 전 과정에서 발생 가능한 취약점과 위협을 정의하고, 이에 대한 기술적${\cdot}$관리적 보호대책에 대한 가이드라인을 제시하고자 한다. 한편, ITU-T, ISO 등 국제 표준 및 국내 TTA 단체 규격 등과 호환 가능하도록 보안대책을 제시함으로서 국가 간의 생체정보에 대한 보호조치 방안에 관하여 상호 연동성을 보장한다. 본고는 유비쿼터스 환경에서 생체인식 국가인프라가 구축되는 시점에서 발생할 수 있는 생체정보에 대한 불신감과 인권침해 등의 사회적인 논란을 최소화하고 개인의 생체정보 보호기술의 발전과 관련 응용서비스 활성화에 기여할 것이다. 또한 전자여권${\cdot}$ 선원신분증${\cdot}$ 국제운전면허증${\cdot}$ 전자주민증 등 공항${\cdot}$항만${\cdot}$육로의 출입국관리에 생체정보의 활용이 전 세계적으로 보급 확산되는 시점에서 생체정보 활용 및 생체인식시스템에 대한 신뢰성을 제공함으로서 국내 생체인식산업의 활성화에 기여할 수 있다고 기대한다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.115-118
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• 2008

The promotion of overseas projects by construction enterprises has appeared as a way to overcome the current business difficulties of the Korean construction industry, which largely caused by the slow growth of the domestic market and the intensified competition among construction companies. The government has also shown considerable interests in the strategic approach of promoting construction projects by private companies in natural resource-rich countries, which helps the internationalization of Korean companies and the acouisition of natural resources. In this regard, this research examines the status of the construction market in the Democratic Republic of the Congo(DRC) whose potential economic growth is considered as significant, while exploring the appropriate Investment strategies of Korean construction enterprise. Since little appears to be known about the construction market and economic conditions of the DRC, after a documented review of the development trajectory of the country, a field investigation was preformed in June 2008 for obtaining information on the subjects. This research finds that the road construction is the area to fulfill the several important criteria of implementing construction projects in developing regions, including the safety/reliability for gaining investment profits, the possibility of implementing construction projects on the gradual basis, the possibility of using the facilities after the project completion, and the linkage between payment and the construction stages. In regard to the current economic situation of the DRC and the policies of the DRC government, a package deal approach, which contains the exchange of the infrastructure construction by the Korean companies and the provision of natural resources by the DRC government, is the most feasible method for Korean companies to promote their businesses in the DRC's construction market.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.39 no.3
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• pp.149-156
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• 2021

This study collected and analyzed case studies related with the use of spatial information in North Korea to prioritize construction and required supporting processes in order to propose a short-term and long-term road map for the establishment of spatial information in North Korea. Recent research cases related to the prioritization of spatial information development were analyzed, and priority for the construction of infrastructure was derived based on the interconnectedness and relationship of national infrastructure. Due to the inaccessibility and remoteness of North Korea, all of the five studies determined priorities according to questionnaires and consulting of refugees and knowledgeable figures by expert groups. In summary, priority was given to unarmed and transborder areas, major cities, special zones, and development zones, while in terms of facilities, priority was given to power communication, railroads, water and sewage architectural buildings, roads, and dams. In the case of prioritizing the establishment of national infrastructure for the unified Korean Peninsula, the development of major areas, ports, and the related city-level spots to develop a line that promotes the sharing of routes such as transportation networks, water, and energy, thus leading to a scenario involving the development of cotton at an urban and national level.

• Journal of Navigation and Port Research
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• v.31 no.3 s.119
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• pp.165-172
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• 2007

Logistics needs in Asia are surprisingly increasing due to rapid growth of China in Northeast Asia We are endeavoring to make an economic block in opposition to NAFTA and EU by economic revival, political stability, and easing of exclusive parts between countries as increasing of traffic infra such as asian highway, transcontinental railway in the region of Northeast Asia and as considering diversification of transportation mode. Now, Busan is not a final terminal of this business, and it is not a concreted level in considering an undersea tunnel between Korea and Japan as effort to extend to Japan. Therefore, this study performed an effect analysis which be affected to Northeast Asia and Korea in future by analysis and comparison of a cost and time required of marine transportation and railway before and after construction through course analysis and summary of discussed content until now for undersea tunnel between Korea and Japan. This result expects as a accelerative play for study cf undersea tunnel between Korea and Japan in future. In this result, we estimate that it is an effective things in a cost and time required if undersea tunnel between Korea and Japan is constructed, and we simply searched for theirs effects in the aspects of Northeast Asia, national balanced development, regional economic in Busan, and marine logistics.

• Journal of Korea Port Economic Association
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• v.36 no.2
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• pp.37-52
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• 2020

This study deals with the terms of three connection factors that promote air cargo transportation in the east-south area: a firm's subjective factors, industrial environment factors, and governmental policy factors. According to the analysis results, a firm's subjective factors (4.48) scored highest of the three promotion factors, followed by industrial environment factors (4.20) and government policy factors (3.88). Therefore, it is important to promote to air cargo transportation in the east-south area a firm's subjective factors (1) to procure concentrated market strategy and real market capacity, (2) to procure speedy satisfaction of customer needs and confidence, (3) to enhance aviation route development, and (4) to enhance business ability of airlines and forwarders. Next, air cargo transportation should be promoted in the east-south area by considering industrial environment factors and government policy factors.

• Journal of Korea Port Economic Association
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• v.23 no.4
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• pp.139-157
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• 2007

The purpose of this paper is to analyze the competitiveness of the logistics industry of three countries - Korea, China and Japan - by looking into their logistics industry structure and the related regulations. For this aim, the paper examined the modal distribution of transportation, transport infrastructure, freight cost structure and regulation in transport sector in these countries. Furthermore, this study suggests some proposals for the further cooperation to bring sustainable progress in the logistics sector across Northeast Asia. The main suggestions of this paper are as follows: First, Korean government needs to strategize its options in the logistics industry, the most competitive in the country’s service sector, in upcoming FTA negotiations with China and Japan. Second, Korea needs to foster Busan into a strategic point for the Rail Ferry System and Road Feeder System. Third, Korea should participate in establishing shuttle flight service in Northeast Asia amid exploding flight demand from active economic interchange and tourism industry development.

• Journal of Digital Convergence
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• v.16 no.10
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• pp.169-178
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• 2018

Gyeongin Port has low awareness, insufficient hinterland infrastructures, and lower competitiveness. So, in this study, we conducted Fuzzy-IPA analysis reflecting the recognition of the consignor companies that are using Gyeongin port to suggest present practical improvement measures for the activation of the operation of Gyeongin port hereafter. As a result of the analysis, three factors, that is, cargo loading/unloading/storage costs, port facility fees, and incentive and support were derived as priority investment areas. Three factors, that is, cargo safety, infrastructure equipment, and inland transportation costs were derived as the areas for maintenance strengthening and factors related to cargo handling and service factors were derived as areas for maintenance of the status quo and areas for gradual improvement, respectively. This study is significant in that it analyzed the recognition of the consignor companies that are using Gyeongin port using a quantifying method and suggested realizable measures for activation based on the results of the analysis. In future studies, the frequency of ships' calling at the port and measures to diversify the sea routes should be additionally reflected on the analysis.

• Journal of Korea Port Economic Association
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• v.32 no.1
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• pp.151-163
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• 2016

This research analyzes the effect of the competitive edge in Information Communication Technology (ICT) on supply chain integration in business processes through a comparative analysis by industry that suggests a way of achieving competitive edge in ICT for effective supply chain integration. Based on the theoretical background, there are two research hypotheses. The first hypothesis is about the effect of a competitive edge in ICT on the supply chain. The second is that the effect of the competitive edge on supply chain integration varies from industry to industry. ICT infrastructure must be acquired in advance in order to attain a competitive edge in ICT to secure corporate competitiveness. Building a competitive edge in ICT itself by methods such as introduction, integration, and application, can directly improve company results. Therefore, it must be utilized strategically for improvement in standards of supply chain integration like information integration, organization integration, and strategy integration. If supply chain integration is accomplished effectively by gaining competitive edge in ICT, company results can be improved. By analyzing the effect of a company's competitive edge in ICT on supply chain integration, and comparing differences in features of each category of businesses, measures for developing a competitive edge in ICT and therefore supply chain integration are presented.