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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Navigation and Port Research
Journal Basic Information
Journal DOI :
Korean Institute of Navigation and Port Research
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Volume & Issues
Volume 35, Issue 9 - Dec 2011
Volume 35, Issue 10 - Dec 2011
Volume 35, Issue 8 - Oct 2011
Volume 35, Issue 7 - Sep 2011
Volume 35, Issue 6 - Aug 2011
Volume 35, Issue 5 - Jun 2011
Volume 35, Issue 4 - Jun 2011
Volume 35, Issue 3 - Apr 2011
Volume 35, Issue 2 - Mar 2011
Volume 35, Issue 1 - Feb 2011
Selecting the target year
Detection algorithm of ionospheric delay anomaly based on multi-reference stations for ionospheric scintillation
Yoo, Yun-Ja ; Cho, Deuk-Jae ; Park, Sang-Hyun ; Shin, Mi-Young ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 701~706
DOI : 10.5394/KINPR.2011.35.9.701
Radio waves including GPS signals, various TV communications, and radio broadcasting can be disturbed by a strong solar storm, which may occur due to solar flares and produce an ionospheric delay anomaly in the ionosphere according to the change of total electron content. Electron density irregularities can cause deep signal fading, frequently known as ionospheric scintillation, which can result in the positioning error using GPS signal. This paper proposes a detection algorithm for the ionosphere delay anomaly during a solar storm by using multi-reference stations. Different TEC grid which has irregular electron density was applied above one reference station. Then the ionospheric delay in zenith direction applied different TEC will show comparatively large ionospheric zenith delay due to the electron irregularity. The ionospheric slant delay applied an elevation angle at reference station was analyzed to detect the ionospheric delay anomaly that can result in positioning error. A simulation test was implemented and a proposed detection algorithm using data logged by four reference stations was applied to detect the ionospheric delay anomaly compared to a criterion.
An Ergonomic Approach for Optimized Layout of Training Ship's Bridge
Jang, Jun-Hyuk ; Kim, Hong-Tae ; Sim, Joung-Hoon ; Kim, Hae-Sik ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 707~715
DOI : 10.5394/KINPR.2011.35.9.707
To propose an ergonomic layout on the bridge, this study conducted a usability evaluation on the on-bridge navigational equipment of a college training ship that is in use at present. Through the usability evaluation on the training ship navigators, the possibility of operational errors with navigational equipment, the possibility of readout errors with display devices and even the effect of navigational equipment on navigation were evaluated beyond the scope of existing layouts, which adopt only the importance and usage frequency of navigational equipment. By taking ergonomic variables into consideration, this study suggested an optimized layout for on-bridge navigational equipment using a mathematical programming model.
Development of EM Wave Absorber for Hi-pass System Using Amorphous Metal Powder
Kim, Dong-Il ; Yoo, Gun-Suk ; Choi, Dong-Soo ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 717~720
DOI : 10.5394/KINPR.2011.35.9.717
In this paper, we designed and fabricated the Electromagnetic(EM) wave absorber for an Electronic Toll Collection(ETC or Hi-pass) system by using Amorphous metal powder and CPE. The material properties and the absorption properties of the samples containing 50 wt.%, 60 wt.%, 70 wt.%, and 80 wt.% of Amorphous. Moreover, the EM wave absorption abilities were simulated for the different thicknesses of the EM absorbers by adopting the measured permittivity and permeability, and then the EM wave absorber was fabricated based on the simulated design values. As a result, the EM wave absorber with the composition of Amorphous metal powder : CPE = 50 : 50 wt.% with the thickness of 2.6 mm has excellent absorption ability more than 40 dB at 5.8 GHz.
A Comparative Review between the English Language Programs of Maritime Institutes in Korea and Europe
Davy, James G. ; Noh, Chang-Kyun ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 721~727
DOI : 10.5394/KINPR.2011.35.9.721
This paper compares the English language programs of two maritime institutes in very different parts of the world, South Korea and Belgium. It will show that although both institutes comply with the minimum standard set by the STCW Code issued by the IMO, course contents and requirements can vary greatly. Method of class delivery, choice of learning tools and testing will be examined to illustrate some of these differences. This paper will show that in order to train new seafarers in the best possible way that will fulfill the IMO mandate of Safer Shipping and Cleaner Oceans, continual review and development of course curriculum should be an ongoing process that focusing on encouraging cadets to communicate in a targeted, efficient and professional way within a nautical context. This paper will show by comparison the huge potential that the Korean Maritime English program has for positive change and growth.
Analysis of marine accident probability in Mokpo waterways
Kim, Kwang-Il ; Park, Gye-Kark ; Jeong, Jung-Sik ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 729~733
DOI : 10.5394/KINPR.2011.35.9.729
The maritime risk assessment is important not only to evaluate the safety level of the ports and waterways but also to reduce potential maritime accidents at sea in terms of the proactive measures of the maritime accidents. In this paper, the collision risk assessment in Mokpo waterways has been carried out based on the IALA recommended model, IWRAP. To evaluate the accident probabilities in Mokpo waterways, all data of vessels were collected from AIS and Radar observations data and the computer simulations were carried out. To assess the risk on the traffic, the scenario-base approach has been applied to the Mokpo waterway by using the maritime accident statics over the past 5 years.
Oil Spill Response System using Server-client GIS
Kim, Hye-Jin ; Lee, Moon-Jin ; Oh, Se-Woong ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 735~740
DOI : 10.5394/KINPR.2011.35.9.735
It is necessary to develop the one stop system in order to protect our marine environment rapidly from oil spill accident. The purpose of this study is to develop real time database for oil spill prediction modeling and implement real time prediction modelling with ESI and server-client GIS based user interface. The existing oil spill prediction model cannot provide one stop information system for public and government who should protect sea from oil spill accident. The development of multi user based information system permits integrated handling of real time meteorological data from external ftp. A server-client GIS based model is integrated on the basis of real time database and ESI map to provide the result of the oil spill prediction model. End users can access through the client interface and request analysis such as oil spill prediction and GIS functions on the network as their own purpose.
A Study of Ecotoxicity Test for Byproducts of Ozone in the Ballast Water Treatment System with Ozonation
Park, Sung-Jin ; Ha, Shin-Young ; Kim, In-Soo ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 741~747
DOI : 10.5394/KINPR.2011.35.9.741
Ecological toxicity testing of the whole-effluent from the ozone ballast water treatment system was conducted as specified in the quality assurance project plans (QAPP). The growth inhibition test with microalgae, acute aquatic toxicity test with the Rotifer reproduction, toxicity test (or population growth) with the Rotifer, survival and growth toxicity test with larval fish and sediment toxicity test with amphipod were carried out to evaluate ecological toxicity on the movile test barge.
Smart Power Management System for Leisure-ship
Park, Do-Young ; Oh, Jin-Seok ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 749~753
DOI : 10.5394/KINPR.2011.35.9.749
A leisure ship has a stand-alone type power system, and a generator is in use on this condition. But the generator cannot be operated in condition of leisure activity, ocean measurement and etc, because of environment and noise. Recently, renewable energy system is connected with power system of the leisure-ship for saving energy. The renewable energy system can not supply the stable power to leisure-ship because power generation changes according to weather condition. And most of the leisure ship is operated without methodical power management system. This study's purpose is to develop SPMS(Smart Power Management System) algorithm using the renewable energy (photovoltaic, wind power and etc.). The proposed algorithm is able to supply stable the power according to operation mode. Furthermore, the SPMS manages electric load (sailing and communication equipment, TV, fan, etc.) and reduces operating times of the generator. In this paper, the proposed algorithm is realized and executed by using LabVIEW. As a result, the hour for operating the generator is minimized.
Analysis of Tsunami Resonance and Impact in Coastal Waters
Lee, Joong-Woo ; Kim, Kyu-Kwang ; Yamazaki, Yoshiki ; Cheung, Kwok Fai ; Yamanaka, Ryoichi ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 755~763
DOI : 10.5394/KINPR.2011.35.9.755
Recently, extreme tsunami waves generated by submarine earthquake have caused tremendous damages to the coastal cities and ports. Strong seiche oscillations and runups are observed in specific sea areas around the world. Although no frequent impacts to the coast of Korean peninsula, there exist some important events in the east of Korea in the past. This study focuses on two historical events and recalculate with different fault and rupture mechanism for prediction considering the recent trend of submarine earthquake. The present study of the 1983 Akita tsunamis demonstrates the multi-scale resonance along continental coasts. Together with the Nankai tsunami for inland sea, we have confirmed the inland sea resonance surrounded by islands in defining the impact along the coast. Coherence and wavelet analyses for deducing a predominant period and time frequency are useful in reasoning the inundation. The resonance modes, which are largely independent of the tsunami source, allow identification of at-risk communities and infrastructure for mitigation of tsunami hazards. Furthermore, understanding of the resonance and the predicted runups for the site of power plant and industrial complex in the east coast of Korea would allow better preparation for the future disasters.
A Study on Economic Operation for Liner-Fleet by Fluctuation of Fuel Oil Price - Focusing on the Case of 'H' Shipping Company -
Lee, Soo-Dong ; Chang, Myung-Hee ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 765~776
DOI : 10.5394/KINPR.2011.35.9.765
For container shipping company, fuel oil prise is a considerable expense. Since 2008, fuel oil prises have risen dramatically. An increasing fuel oil price in container shipping, in the short term, is only partially compensated through surcharges and may affect earnings negatively. This study discusses the impact of an increasing fuel oil price and capital costs for vessels on the Asia-Europe trade of 'H' Shipping Company. According to the result of 'H' carrier's operation in 2008, there were no cost differences between 8 and 9 vessels operations in case of fuel oil price with USD 169/tons while adopting USD 31,818 as a fixed cost. We can expect that the fuel oil price will not go lower than USD 200/Ton on the basis of current high oil price phenomenon. When the fuel oil price is over USD 200/ton, 9 vessel operation is more economic than 8 vessel operation even if the fixed cost is over USD 35,000.
A Study on Modal Shift effect - Focused on O/D between Busan-Gyeonggi Area -
Kang, Dal-Won ; An, Young-Mo ; Nam, Ki-Chan ; Kwak, Kyu-Seok ;
Journal of Navigation and Port Research, volume 35, issue 9, 2011, Pages 777~783
DOI : 10.5394/KINPR.2011.35.9.777
Interest about Modal Shift is not being decreased, and it is drawing limelight as green logistics which meets low carbon green growth of National development vision. As an effect of Modal Shift, not only reduction in CO2 emission but also reduction in social cost, logistics cost etc. are being discussed. However, until now research about its practical transformation effect has been scanty. In this study, the actual expenses via CO2 emission, social cost, and logistics cost etc. by road transportation and rail transportation of container cargo with Origin/Destination between Busan-Kyeonggi Area were calculated and we propose beneficial effects when transportation mode is transformed from road to rail with Scenario Planning.