• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.05a
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• pp.179-181
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• 2019

천진항 폭발사고 이후 우리나라 항만의 위험물 취급실태를 분석하고 개선방은 제시하기 위해 천진항 폭발사고의 유의점, 우리나라 항만위험물 취급현황, 우리나라 항만위험물 취급 문제점을 분석하고, 이에 대한 개선방안을 제시한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2020.11a
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• pp.125-127
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• 2020

자율운항선박 도입을 위한 항만물류 서비스 연계 효율화 방안을 위해 기존 안전운항지원 서비스 모델 및 관리 기술과 화물처리 전반 자동화 처리를 위한 스마트 항만과의 비즈니스 연계를 프로세스로 정의한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.10a
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• pp.48-49
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• 2010

선박의 러더하부 끝단에서는 선회에 따른 와류로 인하여 선회력 및 후류유동에 변화를 초래한다. 이를 관측하기 위해 NACA단면 형상의 몰수체를 영각과 관측단면을 변화시키며 $Re=2.0{\times}10^4$에서 실험을 통한 순간유동장을 계측 후 그 영향을 조사하였다. 계측된 결과는 상호상관 PIV기법을 이용 Naca단면 끝단에서의 2차원 유동특성을 알아보기 위하여 상호 비교하였다. NACA단면은 영각변화에 따라 후류유동에 영향을 미친다. 동일유입유속에서 영각이 증가함에 따라 관찰단면이 중앙으로 갈수록 와류 규모가 확대되는 것을 관찰할 수 있었다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.207-209
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• 2012

해양레저 활동의 범위가 점차 원거리 항해로 확대되면서 거주가 가능한 크루즈보트가 각광받고 있다. 해양레저산업 선진국인 유럽, 북미의 경우 미려한 디자인, 인간공학적 구조 그리고 경량선체 소재 채택을 통한 연료효율 향상 등 크루즈보트의 설계와 제작에 있어 이미 경쟁력을 확보하고 있다. 반면, 국내의 경우 소형 레저보트 중심의 개발, 건조가 이뤄지고 있으며, 선체소재 또한 유리섬유강화복합소재가 대부분을 차지하고 있다. 본 연구에서는 원양항해가 가능한 50피트급 탄소섬유강화복합재료(CFRP) 선체 크루즈보트의 선형에 대한 연구를 수행하였다. CFRP 선체 레저보트의 선형특성을 분석하여 설계선의 선형을 제안하였으며, 조선공학적 검토를 통해 그 특성을 분석하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.156-158
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• 2011

최근 국제적으로 e-Navigation을 지향한 해상안전에 대한 국제적 기술개발 및 표준화가 활발하게 진행되고 있다. 이러한 국제적 변화와 더불어 국내에서도 차세대 해상교통관제기술개발의 필요성이 제기되어 왔으며, 최근 차세대 VTS를 위한 기술개발이 진행중에 있다. 그러나 차세대 VTS(u-VTS)는 국내 환경에서 적용하기 위하여 차별화된 기술이 적용되어야 하고, 이는 국내 VTS 센터로부터 요구사항을 수렴하여 이를 시스템 개발에 적용하는 것이 바람직하다. 따라서 본 논문에서는 차세대 VTS인 u-VTS의 요구사항을 정의하기 위하여 국내 15개 관제센터로부터 요구사항을 수렴하고, 이를 분석한 결과를 제시하고자 한다. 또한, 국내 뿐만 아니라 해외 e-Navigation 요구사항까지 분석하여, 차세대 VTS의 서비스 및 시스템 요구사항을 정의하는 것이 필요하다.

• International Commerce and Information Review
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• v.13 no.2
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• pp.27-48
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• 2011

Single window has become a critical point of trade facilitation. While Korea has set up the first web based single window 'uTtradeHub', China has also been working on a seamless single window. As strong governmental support, advanced technology, leading agency and legal framework are success factors for single window, China already has solid foundation for this. For the leading agency, this research suggests the CIECC as a leading agency with linkage to E-Port service for seamless trade service for companies. We expect that Chinese single window will materialize in near future by a leading agency with the help of strong governmental support.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.12 no.1
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• pp.27-36
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• 2001

In this paper, micromachined millimeter-wave cavity resonators ar presented. One-port and two-port cavity resonators at Ka-band are designed using 3D design software, HP $HFSS^{TM}$ ver. 5.5 Cavity resonators are fabricated on Si substrate, which is etched down for the cavity, bonded with a Quartz wafer in which metal patterns for the feeding line coupling slot are formed. One-port resonator shows the resonant frequency of 39.34 GHz, the return loss of 14.5 dB, and the loaded $Q(Q_{L})$ of 150. Two-port cavity resonator shows the resonant frequency of 39 GHz, the insertion and return losses of 4.6dB and 19,9dB, the loaded($Q_{L}$) and unloaded $Q(Q_{U})$) of 44.3 and 107, respectively.

• Proceedings of the Korea Port Economic Association Conference
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• 2007.07a
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• pp.493-514
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• 2007

A Port is, one of the important infrastructures, the terminal to connect between land and sea and exerts influences on the development of nation and local area. Accordingly government and privates are making an investment in port facilities in order to raise its competitive power. Due to the economic growth of China and the geographic advantage that Gunsan and Janghang port are close to China, recently traffic with China is rapidly increasing and the role of Gunsan & Janghang ports as a gateway port of west costbecame more important. There, however, remains that Gunsan and Janhang port still don't equipped with enough facilities and strategies to handle increasing traffic. The purpose of this paper is to analyze O/D data of Gunsan-Janghang Port and present the result of O/D as preliminary data. O/D data of Gunsan and Janghang had been analyzed by kinds of cargoes and from/to China's ports and this paper suggests to the competitive strategies of Gunsan and Janghang port to attract cargoes from/to China particularly.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.05a
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• pp.55-56
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• 2018

In order to construct an efficient monitoring system for major port cities in Korea, the first step to build and manage related laws and institutional infrastructure with strengthen the cooperation of the relevant agencies, regional port authorities, and port corporations. Second, for the management of air pollutants emitted by ports, a management system should be established through systematic inventory source inventory and real-time monitoring system. Third, active countermeasures should be established to reduce the emission of air pollutants by sources such as ships, harbor equipment, and trucks. This will improve the air quality of major port cities and move them to clean port cities.

• Proceedings of the Korea Port Economic Association Conference
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• 2006.08a
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• pp.159-179
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• 2006

As the current trend to the main index of the port competitiveness evaluation, the competitiveness index of the port service comes to more important than the part of expense, location and facility. To reform the bottleneck of port has an effect on improving port service competitiveness. Therefore, this study shows the importance of analyzing bottlenecks on logistics to improve port competitiveness. It collected recent questionnaire data which are the subject as the Custom Service, the Chamber of Commerce and Industry, the Trade Association about bottlenecks of port logistics for working out bottlenecks of domestic port logistics and it produced the order of priorities of bottlenecks by multiplying each output priorities and weights of each process in user of Incheon inner-outer port which is focused on container freight by analysis of priority and Analytic Hierarchy Process(AHP). Unlike existing studies, this study has important values. It presents the priority evaluation only focused on the container freight was produced by port users who are categorized into shipping company, terminal operation company and forwarder, car-ferry in Incheon inner-outer port and making a application of logistics process. It means internal and external competitiveness improvement plan can be presented more concretely and detailed than past competitiveness attributes such as location, facility, service and expense. If the analysis of port logistics bottlenecks which was focused on container freight is extended to the part of general cargo and sundries such as haul grain, car, scrap iron, those studies will be able to provide Incheon port users with useful information and a model of analyzing overall bottleneck of logistics in Incheon port.