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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
Editor in Chief :
Volume & Issues
Volume 36, Issue 9 - Dec 2012
Volume 36, Issue 10 - Dec 2012
Volume 36, Issue 8 - Oct 2012
Volume 36, Issue 7 - Sep 2012
Volume 36, Issue 6 - Aug 2012
Volume 36, Issue 5 - Jun 2012
Volume 36, Issue 4 - Jun 2012
Volume 36, Issue 3 - Apr 2012
Volume 36, Issue 2 - Mar 2012
Volume 36, Issue 1 - Feb 2012
Selecting the target year
Analysis of integrated GPS and GLONASS double difference relative positioning accuracy in the simulation environment with lots of signal blockage
Lee, Ho-Seok ; Park, Kwan-Dong ; Kim, Du-Sik ; Sohn, Dong-Hyo ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 429~435
DOI : 10.5394/KINPR.2012.36.6.429
Although GNSS hardware and software technologies have been steadily advanced, it is still difficult to obtain reliable positioning results in the area with lots of signal blockage. In this study, algorithms for integrated GPS and GLONASS double difference relative positioning were developed and its performance was validated via simulations of signal blockages. We assumed that signal blockages are caused by high-rise buildings to the east, west, and south directions. And then, GPS-only and integrated GPS/GLONASS positioning accuracy was analysed in terms of 2-dimensional positioning accuracies. Compared with GPS-only positioning, the positioning accuracy of integrated GPS/GLONASS improved by 0.3-13.5 meters.
Accuracy Evaluation of DGPS Service via Terrestrial Digital Multimedia Broadcasting
Kim, Hye-In ; Kim, Ji-Hye ; Kim, Koon-Tack ; Park, Kwan-Dong ; Kim, Du-Sik ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 437~442
DOI : 10.5394/KINPR.2012.36.6.437
As of 2012, for service-area-widening and commercialization of DGPS service, the Ministry of Land, Transport and Maritime Affairs has completed a DGPS service via Terrestrial Digital Multimedia Broadcasting and doing experimental broadcasting. In this study, kinematic positioning tests were conducted based on DGPS service via T-DMB using low-cost GPS equipments in a dynamic environment. Standalone GPS, single-reference NDGPS via NTRIP, and virtual-reference DGPS via T-DMB surveys were conducted at the same time. And horizontal positioning errors were computed by comparing them with the result of high-precision positioning. As a result, when the DMB transmission interval was 3 seconds, horizontal positioning errors of standalone GPS, NTRIP-DGPS, and DMB-DGPS were 2.3m, 1.0m, and 0.7m, respectively. When the interval was 1 second, horizontal positioning errors were 2.0m, 1.2m, and 0.8m, respectively. Thus horizontal positioning accuracies improved with the DMB-DGPS compared to the traditional single-reference NDGPS.
A Consciousness Survey on Natural Disasters of Inhabitants living in Islands of Korean Southeastern Sea
Hwang, Kwang-Il ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 443~448
DOI : 10.5394/KINPR.2012.36.6.443
As a basic data to build a countermeasures against coastal disaster, the conscious survey of people living around the coastal are is needed. This study performed the conscious survey on 5 islands located at Korean southeast ocean including Youngdo of Busan. Among many respondents, 503 effective answers are got and followings are the analyzed results. Among the various kinds of disasters, especially the typhoon(28%), storm surge(19%), earthquake(15%) are selected as menacing disasters in mind to coastal inhabitants. Typhoon(60%) and storm surge(21%) were the representative disasters that the coastal inhabitants experienced. 67% among the respondents get the disaster-related information from TV and/or commercial medias, and other 21% depend on their own experiences. Although 33% of respondents attended the disaster-related training and the training time was less than 2 hours, they answered the training was very helpful. Over 85% among the respondents answered they will evacuate if a disaster occur, but only 19% know the evacuee shelter(s). Except the foods, various living goods are selected and willing to carry with for living at shelter if they have to evacuate.
A Case Study on Legal Systems related to Floating Building
Lee, Han-Seok ; Lee, Myung-Kwon ; Kang, Young-Hun ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 449~458
DOI : 10.5394/KINPR.2012.36.6.449
Recently many different floating buildings are planed and constructed in the sea, river, etc. for active use of water spaces. But many problems are occurred in the process of floating building design, construction and management due to the inadequate legal system. This incomplete legal system has become one of the critical factors which are hampering the invigoration of floating buildings. Therefore this study is to suggest preliminary data and improvement directions through a case study with domestic and foreign examples of appropriate laws and law applications concerning floating buildings. As the results of this study the laws related to floating building have to be revised in the directions of qualifying legally floating building as 'building' but not 'ship', designating 'special zone' for floating building site, and applying the established 'building licensing procedure' to floating building also.
Adsorption of Nitrate and Phosphate onto the Dredged Sediment from a Coastal Fishery
Sun, Young-Chul ; Kim, Myoung-Jin ; Song, Young-Chae ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 459~463
DOI : 10.5394/KINPR.2012.36.6.459
In the present study, experiments have been performed to investigate the effects of the type of adsorbent, pH, and ionic strength on the adsorption of nutrients (nitrate and phosphate in artificial solution) onto the dredged sediment from a coastal fishery. In addition, this study aims to evaluate the possibility of removing the nutrients from the water using the dredged sediment. In the adsorption experiments of the nutrients, the reactions were completed within 10 minutes using
, 10mM) and
, 10mM). In the steady state, 61% and 77% of the initial amounts were removed respectively for
-P. The thermal treatment of the dredged sediment at
was not helpful to increase the removal efficiencies of the nutrients. Additives such as CaO and MgO dropped the removal efficiency of
to 0%, but increased that of
up to 98%. Adsorption isotherms of
could be explained by the Freundlich equation (
>0.99). The adsorption reaction was little influenced by the pH and ionic strength. Based on the results showing short reaction time and considerably high removal efficiencies of the nutrients, it is proposed to apply the dredged sediment from a coastal fishery to removing nutrients such as nitrate and phosphate in the water.
The Eviction and Preservation of Gängeviertel in Hamburg - From the Gentrification to the Right to the City -
Jeong, Moon-Soo ; Chung, Chin-Sung Dury ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 465~474
DOI : 10.5394/KINPR.2012.36.6.465
Hamburg's development politics like "metropolis Hamburg - a growing city" demonstrates an important economic and demographic growth during 1997 to 2008. Beyond the positive factors with the idea of creative city, only selected class of people are involved in the city's active living, the others experience only gentrification. The G
ngeviertel, where the Hamburg's working class and dockworkers had lived, will be analysed as a historical important place of the gentrification since the end of the 19'century. This paper focuses on the actual Hamburg's movement of the initiatives "Komm in die G
nge" and " Right to the City", which took over the last 12 buildings of the G
ngeviertel. The G
ngeviertel Project, with the slogan "the city is neither a business nor a brand, but a community" could be an example of an alternative and sustainable solution for better living in the urban area of the Hamburg.
Measurement of Reference Phase Offset for the Loran-C Transmitting Signal of Pohang
Lee, Chang-Bok ; Won, Sung-Ho ; Lee, Jong-Koo ; Kim, Young-Jae ; Lee, Sang-Jeong ; Yang, Sung-Hoon ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 475~480
DOI : 10.5394/KINPR.2012.36.6.475
In order to establish eLoran (enhanced Long Range Navigation) system, it needs the advancement of receiver, transmitter, data channel addition for Loran information, differential Loran sites for compensating Loran-c signal and ASFs (Additional Secondary Factors) database, etc. In addition, the precise synchronization of transmitting station to the UTC (Coordinated Universal Time) is essential if Loran delivers the high absolute accuracy of navigation demanded for maritime harbor entrance. For better timing synchronization to the UTC among transmitting stations, it is necessary to measure and monitor the transmission delay of the station, and the correction information of the transmitting station should be provided to the user's receivers. In this paper we presented the measurement method of absolute delay of Pohang Loran transmitting station and developed a time delay measurement system and a phase monitoring system for Loran station. We achieved -2.23 us as a result of the absolute phase delay of Pohang station and the drift of Loran pulse of the station was measured about 0.3 us for a month period. Therefore it is necessary to measure the delay offset of transmitting station and to compensate the drift of the Loran signal for the high accuracy application of PNT (Positioning, Navigation and Timing).
A Study on Port's Influence over 'Quality of Life' in Sea Port Cities - Compare China Dalian Port with Busan Port -
Kim, Sang-Goo ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 481~488
DOI : 10.5394/KINPR.2012.36.6.481
As an exploratory research to understand the nature of relationships between ports and their neighboring communities, this study analyzes how ports influence their residents' quality of life(QOL). The QOL was measured by 17 indicators reconstructed by reviewing relevant literatures. As a result, both Busan port and Dalian port were found to have statistically significant influence on many of QOL indicators including general expenditure per capita, number of manufacturing factories per capita, number of factories's laborer per capita, the rate of pavement, number of traffic accident per capita, rate of housing supply, number of financial agencies per capita, park area per capita, number of cultural assets per capita, the size of welfare expenditure per capita, number of fire occurrence per capita. And Busan port have statistically significant influence on QOL indicators including the rate of increase in population, number of public health industries per capita, number of public health industries per capita, number of schools per capita, number of sick-beds per capita, but Dalian port not have influence. Also Dalian port have statistically significant influence on number of crime occurrence per capita, but Busan port not have influence.
The Impact of Communication and Conflict on Group Cohesiveness and Organization Effectiveness in Ship Organization
Lee, Jong-Seok ; Kim, Tae-Hyung ; Shin, Yong-John ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 489~499
DOI : 10.5394/KINPR.2012.36.6.489
The purpose of this study is to examine the relation between communication and conflict in the ship organization and to analyze the affect of the conflict on the group cohesiveness and organizational effectiveness in the view of dysfunctional conflict that would play on the negative role to decrease the group cohesiveness and organizational effectiveness. The empirical survey showed that the intragroup and intergroup communications in the ship organization affect on the conflict of within and between groups, these conflicts decrease the group cohesiveness and organizational effectiveness, and that cohesiveness affect the organizational commitment and the job satisfaction of ship organization member significantly.
Measurement of Electric Power Consumption of Residences in Southeastern Fishing Village of Korea
Hwang, Kwang-Il ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 501~506
DOI : 10.5394/KINPR.2012.36.6.501
To serve basic data for the design of capacity and management of Distributed(or On-site) Power Generation System using renewable energies, this study measured the electric power consumption(hereafter abbreviated as EPC) of 5 families of fishing village located at island in southeastern area of Korea. The results are as following. The maximum monthly average EPC occurred in December or January. Although the total monthly EPC of H family is 2~3 times more than J family, individual monthly EPC of J family is 10~30 % more than H family. Hourly EPC pattern shows that the maximum EPC occurred between 20~24 o'clock in summer season, but it occurred between 18~24 o'clock in winter season. Compared to summer, the height of fluctuation through a day is small. And the EPC patterns of weekdays and weekend estimated as very similar.
A Study on the Status and Revitalization of Ocean Education in Busan
Moon, Serng-Bae ; Jeong, Woo-Lee ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 507~512
DOI : 10.5394/KINPR.2012.36.6.507
Korea is the 5th Maritime Power in the world, especially, Busan Metropolitan City is the 3rd Marine City, which has the largest Container port facility and logistic system in the world. However, Busan Citizen's maritime consciousness does not reach that level. This study points out the problems, which are insufficiency of linkage among maritime education institutes, uniformity of ocean education programs, incomplete ocean education system, inadequate management of ocean education programs and shortage of professional instructors. To solve these problems, it is necessary to develop the ocean education modules, establish the ocean education course and put into formal education course to maximize the education effectiveness. This is for the improvement of the reputation as a Marine City Busan, construction the hydrophil culture and propagation of ocean culture.
Effects of pH, Temperature, and Dissolved Oxygen on Phosphorus Release from Marine Sediment to Seawater
Cheon, Hyo-Chang ; Nam, Se-Yong ; Kim, Sang-Hyoun ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 513~519
DOI : 10.5394/KINPR.2012.36.6.513
Understanding the behavior of pollutants in the marine environment is essential for coping with the marine pollution problems such as eutrophication. In this study, the effects of environmental parameters on phosphorus release from marine sediment to sea water were investigated. The environmental parameters such as pH in the range of 7 to 9, temperature from 10 to 20C and dissolved oxygen levels (DO) renging 0.7 to 7.0mg/L were examined. Phosphorus release data were taken from batch tests excluding biotic effects, and analyzed using a first-order kinetic model. The effects of environmental parameters were quantified using a statistical methodology. High pH, high temperature, and low DO increased phosphorus release from the sediment to sea water. pH from 7 to 9, temperature from 10 to
, or DO from 7.0 to 0.7 mg/L magnified the equilibrium phosphorus concentration up to 2~3 times.
Forecasting the Grain Volumes in Incheon Port Using System Dynamics
Park, Sung-Il ; Jung, Hyun-Jae ; Yeo, Gi-Tae ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 521~526
DOI : 10.5394/KINPR.2012.36.6.521
More efficient and effective volume management of trade cargo is recently requested due to FTA with foreign country. Above all, the grain is the main cargo needed in Korean food life and was appointed as the core trade cargo during FTA. This study is aimed to forecast future demands of grain volumes which are handled at Incheon port because most of the grain volumes are traded at Incheon port in Korea. System Dynamics (SD) was used for forecasting as the methodology. Also, population, yearly grain consumption per a man, GDP, GRDP, exchange rate, and BDI were used as the factors that influence grain volumes. Simulation duration was from 2000 to 2020 and real data was used from 2000 to 2007. According to the simulation, 2020's grain volumes at Incheon port were forecasted to be about 2 million tons and grain volumes handled at Incheon port were continuously reduced. In order to measure accuracy of the simulation, this study implemented MAPE analysis. And after the implementation, the simulation was decided as a much more accurate model because MAPE value was calculated to be 6.3%. This study respectively examined factors using the sensitivity analysis. As a result, in terms of the effects on grain volume in Incheon Port, the population factor is most significant and exchange rate factor is the least.
A Management Efficiency Analysis of Container Terminal Operators
Kang, Hyun-Goo ; Ryoo, Dong-Keun ; Sohn, Bo-Ra ;
Journal of Navigation and Port Research, volume 36, issue 6, 2012, Pages 527~534
DOI : 10.5394/KINPR.2012.36.6.527
In order to achieve sustainable growth and gain competitive advantages business performance should be monitored regularly by a company. In the port industry container terminal operators are facing growing competition. A large scale of new container terminals are constructed and the number of new container terminal operators are increasing. Container shipping lines are gaining bargaining power against terminal operators in terms of negotiating terminal usage. The competitive environments result in reduced cargo handling charges and poor financial performance of container terminal operators. It becomes very important to examine how efficiently container terminal operators are operating their terminals and how to improve their performance. This paper investigates the measurement efficiency for container terminal operators in Korea using Data envelopment analysis(DEA) of DEA-CCR and DEA-BCC Model. This paper finds out which container terminal operators are inefficient and how to improve their management efficiency.