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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Navigation and Port Research
Journal Basic Information
Journal DOI :
Korean Institute of Navigation and Port Research
Editor in Chief :
Volume & Issues
Volume 39, Issue 6 - Dec 2015
Volume 39, Issue 5 - Oct 2015
Volume 39, Issue 4 - Aug 2015
Volume 39, Issue 3 - Jun 2015
Volume 39, Issue 2 - Apr 2015
Volume 39, Issue 1 - Feb 2015
Selecting the target year
Effect of Additional Elements on Efficiency of Al and Zn Sacrificial Anode for Naval Vessels
Choi, Woo-Suk ; Park, Kyung-Chul ; Kim, Byeong-Ho ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 277~283
DOI : 10.5394/KINPR.2015.39.4.277
MS(Mild Steel), HTS(High Tensile Steel), HYS(High Yield Steel), AL(Aluminum Alloy) and Composite Materials are used for vessels. Steel Materials are mostly used for vessels because body of a ship have to perform the basic functions such as watertight, preserving the strength and supporting the equipments. The vessels primarily carry out a mission at ocean, so that body of a ship is necessarily rusted. There are several methods to protect the corrosion of vessels such as painting, SACP(sacrificial anode cathodic protection) and ICCP(impressed current cathodic protection). For the sacrificial anode cathodic protection, Al and Zn alloys are normally used. Heavy metals are added to the Al and Zn Alloys for improving the corrosion properties but they are so harmful to the human and environment. Therefore, the use of these heavy metals is strictly regulated in the world. In this paper, Al and Zn Alloys are made by adding the trace elements(Ma, Ca, Ce and Sn) which is not harmful to the human and environment. SEM, XRD, Potentiodynamic Polarization test and Current Efficiency test are conducted for evaluation of Al and Zn Alloys. As a result of the experiment, Al-3Zn-0.6Sn and Zn-3Sn Alloys are more efficient than other Alloys.
Thermal Insulation Effect of Inflatable Life Vest on the Drowned Individual estimated by Numerical Analysis
Kim, Sung Chan ; Lee, Kyung Hoon ; Hwang, Se Yun ; Lee, Jin Sung ; Lee, Jang Hyun ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 285~291
DOI : 10.5394/KINPR.2015.39.4.285
Exposure to cold sea water can be life-threatening to the drowned individual. Although appropriate life jacket can be usually be provided for the buoyance at the drowning accident, heat loss can make the drowned individual experience the hypothermia. Inflatable life jackets filled with inflatable air pocket can increase the thermal protection as well as the buoyancy force. Because it is important to know how the human body behaves unde the different life jacket, present study compares the thermal insulation capacity of solid type life jacket with that of inflatable life jacket. In order to represent the insulation capacity of life jacket, thermal resistance is estimated based on the assumption of steady-state. Also, a transient three-dimensional thermal distribution of the thigh is analyzed by using finite element method implementing the Pennes bioheat equation. The finite element model is a segmental, multi-layered representation of the body section which considers the heat conduction within tissue, bone, fat and local blood flow rate.
Experimental Performance Analysis of BCJR-Based Turbo Equalizer in Underwater Acoustic Communication
Ahn, Tae-Seok ; Jung, Ji-Won ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 293~297
DOI : 10.5394/KINPR.2015.39.4.293
Underwater acoustic communications has been limited use for military purposes in the past. However, the fields of underwater applications expend to detection, submarine and communication in recent. The excessive multipath encountered in underwater acoustic communication channel is creating inter symbol interference, which is limiting factor to achieve a high data rate and bit error rate performance. To improve the performance of a received signal in underwater communication, many researchers have been studied for channel coding scheme with excellent performance at low SNR. In this paper, we applied BCJR decoder based ( 2,1,7 ) convolution codes and to compensate for the distorted data induced by the multipath, we applying the turbo equalization method. Through the underwater experiment on the Gyeungcheun lake located in Mungyeng city, we confirmed that turbo equalization structure of BCJR has better performance than hard decision and soft decision of Viterbi decoding. We also confirmed that the error rate of decoder input is less than error rate of
, all the data is decoded. We achieved sucess rate of 83% through the experiment.
Design and Implementation of Sensibilities Lighting LED Controller using Modbus for a Ship
Jeong, Jeong-Soo ; Lee, Sang-Bae ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 299~305
DOI : 10.5394/KINPR.2015.39.4.299
Modbus is a serial communications protocol, it has since become a practically standard communication protocol, and it is now a commonly available means of connecting industrial electronic devices. Therefore, it can be connected with all devices using Modbus protocol to the measurement and remote control on the ships, buildings, trains, airplanes and etc.. In this paper, we add the Modbus communication protocol to the existing lighting controller sensitivity to enable verification and remote control by external environmental factors, and also introduces a fuzzy inference system was configured by external environmental factors to control LED lighting. External environmental factors of temperature, humidity, illuminance value represented by the LED through a fuzzy control algorithm, the values accepted by the controller through the sensor. Modbus is using the RS485 Serial communication with other devices connected to the temperature, humidity, illumination and LED output status check is possible. In addition, the remote user is changed to enable it is possible to change the RGB values in the desired color change. Produced was confirmed that the LED controller output is based on the temperature, humidity and illumination.
A Study on Target Acquisition and Tracking to Develop ARPA Radar
Lee, Hee-Yong ; Shin, Il-Sik ; Lee, Kwang-Il ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 307~312
DOI : 10.5394/KINPR.2015.39.4.307
ARPA(Automatic Radar Plotting Aid) is a device to calculate CPA(closest point of approach)/TCPA(time of CPA), true course and speed of targets by vector operation of relative courses and speeds. The purpose of this study is to develop target acquisition and tracking technology for ARPA Radar implementation. After examining the previous studies, applicable algorithms and technologies were developed to be combined and basic ARPA functions were developed as a result. As for main research contents, the sequential image processing technology such as combination of grayscale conversion, gaussian smoothing, binary image conversion and labeling was deviced to achieve a proper target acquisition, and the NNS(Nearest Neighbor Search) algorithm was appllied to identify which target came from the previous image and finally Kalman Filter was used to calculate true course and speed of targets as an analysis of target behavior. Also all technologies stated above were implemented as a SW program and installed onboard, and verified the basic ARPA functions to be operable in practical use through onboard test.
A Study on the Article Applicable Mutatis Mutandis under the Ship Officer's Act
Jeon, Yeong-Woo ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 313~318
DOI : 10.5394/KINPR.2015.39.4.313
A question has recently been raised as to whether a foreign officer needs to obtain a Korean endorsement in order to be able to serve on board a Korean flag ship. This is attributable to the fact that differences of viewpoint may arise as to the interpretation on the relation between the mutatis mutandis article 24(1) and the endorsement issuance article 10 bis. This study intends to propose an interpretative solution through conducting in-depth analysis on the article 25(1). The conclusions of this study can be given as follows. First, the jurisdiction over the bareboat charter ships with hire purchase shall be rested with the third country of which the flag the ship is flying, the endorsement to be issued to foreign officers have to be issued by the flag State under the STCW Convention as ameded. Second, the provisons of the ship officers' act shall not be made applicable, commensurate with the intention of legislating the mutatis mutandis article 25, to the BHC/HP in such a way that is in infringement with the jurisdiction of flag State of those foreign ships. Third, the mutatis mutandis article shall be made applicable to only such areas of manning standards not covered under the STCW Convention as amended and shall exclude those provisions pertaining to the issuance of various certificates of which the jurisdiction is rested with flag State under the international instrument. Fourth, the article 10 bis(1) is not a provision requiring foreign officers wishing to serve on a BBC/HP to obtain a Korean endorsement. In summation, the article 10 bis shall be used only in the cases where foreign officers wishing to serve on a Korean flag ship are required to obtain korean endorsement.
A Study on the Analysis of the Redevelopment Policy in the Inner Port of Incheon
Kang, Sang-Gon ; Park, Chang-ho ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 319~327
DOI : 10.5394/KINPR.2015.39.4.319
This study can be summarized as follows : First, main participant, procedure and method of redevelopment of Inner port shall be additionally reviewed. Demands of stakeholder of Incheon Inner Port are actively accommodated to avoid the disruption in undertaking the project. Second, it must ensure the adequacy and appropriateness of policies regarding the redevelopment of the Inner Port in Incheon. It is necessary to obtain consent of people on this project. Third, appropriate system must be established to undertake the project. For this purpose, the governance system shall be built to collect the opinions of the people. The conclusions of this study are as follows. The national master plan and modify plans of Port redevelopment have been being undertaken based on Port Act. Incheon Inner Port redevelopment has been showing slight discrepancy with that of other ports. It's the essential part to coordinate the opinions and needs between the parties prior to the establishment of a redevelopment plan. This can be settled when it's warranted for dock workers to secure the job, and for port companies to provide replaceable piers as the precondition. In addition, eco-friendly waterfront leisure space shall be planned and alternative policies shall be arranged with accommodating the needs of local residents and merchants.
Space Design Marketing of Floating Architecture and Its Spatial Demands
Pak, Sung-Sine ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 329~334
DOI : 10.5394/KINPR.2015.39.4.329
Currently, image of floating architecture has been positively improved based on the normalization of a domestic representative floating building 'Some Sevit'. Features of the floating architecture are as follows: special experience (29.9%)> landmark (27.6%)> enjoyment of marine culture (21.5%)> center for tourism and regional development (16.0%)> eco-friendly space solving global warming (4.8%). Floating building has a distinctive image and at the same time offers a unique spatial experience to the public. Therefore, space design marketing of floating building is a communication process to exchange its spatial identity and image between the local government and the public, the corporation and customers. It is essential for the effective space design marketing that the spatial demands should be reflected into its program such as commercial, cultural and marina facilities. The unification of project leader and operator is also important. The transformed conditions would help the construction market to be active in the future.
Assesment of Zeolite, Montmorillonite, and Steel Slag for Interrupting Heavy Metals Release from Contaminated Marine Sediments for Capping Thickness of Reactive materials
Kang, Ku ; Kim, Young-Kee ; Park, Seong-Jik ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 335~344
DOI : 10.5394/KINPR.2015.39.4.335
This study aims to assess the effectiveness of zeolite, montmorillonite, and steel slag as capping materials to block the release of heavy metals from marine sediment depending on their depths. The results showed that all capping materials used this study were not effective in interrupting release of As. Zeolite had negative effect on the block of Cr release but it was significantly reduced to 5 cm by montmorillonite capping. In contrast to As and Cr, Cd, Ni, and Pb were not released even from uncapped sediments. Cu and Zn were the heavy metals those were most significantly influenced by the capping conditions. Cu release from marine sediments were effectively blocked by more than 1 cm depth of montmorillonite and more than 3 cm depth of zeolite. All capping materials were found to be effective in interrupting release of Zn from marine sediments. It was concluded that the zeolite, montmorillonite, and steel slag could be used as a potential capping material for interrupting the release of Cr, Cu, and Zn from the contaminated marine sediments.
Effect of the Applied Biostimulant Depth on the Bioremediation of Contaminated Coastal Sediment
Woo, Jung-Hui ; Subha, Bakthavachallam ; Song, Young-Chae ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 345~351
DOI : 10.5394/KINPR.2015.39.4.345
This study investigated the optimum depth for the application of bioremediation in contaminated coastal sediment using a lab scale column experiment. The biostimulants were placed in the top surface of the sediment facing seawater, 3cm, 6cm and 10cm of the depth from the surface, respectibely. During the experiment, the changes of organic pollutants and heavy metal fractions in the sediment were monitored in 1 month and 3month time intervals. The organic pollutants found during various analysis such as chemical oxygen demand, total solids and volatile solids, significantly reduced when the depth of the biostimulant was 3cm or less. In contrast, at a depth of over 6cm, the reduction of organic pollutants decreased, and the results were similar to the control. Heavy metals fractions in the sediment also changed with the depth of the biostimulants. The exchangeable fraction of the metals was quite reduced at the sediment surface in the column, but the organic bound and residual fractions considerably increased at a depth of 3cm. Based on this study, the optimum biostimulants depth for in-situ bioremediation of contaminant coastal sediment is 3cm from the sediment surface.
A Study on the Optimization Problem for Offshore Oil Production and Transportation
Kim, Chang-Soo ; Kim, Si-Hwa ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 353~360
DOI : 10.5394/KINPR.2015.39.4.353
The offshore oil production requires a huge amount of cost and time accompanied by multiple variables due to the peculiar nature of 'offshore'. And every process concerned is controlled by elaborate series of plans for reducing loss of lives, environment and property. This paper treats an optimization problem for offshore oil production and transportation. We present an offshore production and transportation network to define scope of the problem and construct a mixed integer linear programming model to tackle it. To demonstrate the validity of the optimization model presented, some computational experiments based on hypothetical offshore oil fields and demand markets are carried out by using MS Office Excel solver. The downstream of the offshore production and transportation network ends up with the maritime transportation problem distributing the crude oil produced from offshore fields to demand markets. We used MoDiSS(Model-based DSS in Ship Scheduling) which was built to resolve this maritime transportation problem. The paper concludes with the remark that the results of the study might be meaningfully applicable to the real world problems of offshore oil production and transportation.
An Analysis of the International Transportation Route at the Sight of Wind Power Equipment Manufacturing Company
Yun, Seok-Hwan ; Park, Jin-Hee ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 361~370
DOI : 10.5394/KINPR.2015.39.4.361
Wind energy began to receive attention as a new alternative fuel since 20 years ago and is growing as a booming global business model. Global wind power generation in the world has been continuously increasing for the past 10 years, accounting for over 30% of cumulative rate compared to total power generation. Global demand for wind power generation is gradually expanding due to restriction on carbon emission and environmental problems caused by increased greenhouse effect. Accordingly in this study, current transportation routes are classified into three types including access-priority route, economics-priority route, and convenience- priority route depending on distribution characteristics of wind power equipment in order to suggest transportation methods other than ships. The three types of transportation route that this study declared can make the Wind power equipment manufacturing companies can judge not only the duration of transportation but also effectiveness and economic feasibility. It means that the manufacturers can analyze and compare the effectiveness and economic feasibility, which are proceed by the shipping company and freight forwarder until now days.
A Study on the Factors Influencing Cargo Volume of Small & Medium Container Port in Korea
Park, Chang-Ki ; Nam, Ki-Chan ; Kang, Dal-Won ;
Journal of Navigation and Port Research, volume 39, issue 4, 2015, Pages 371~376
DOI : 10.5394/KINPR.2015.39.4.371
Port is responsible for the important role that creates a lot of value-added export and import-intensive countries, critical infrastructure, and in the national economy. Despite being an important facility for the past, awareness of the port is insufficient; In 2000s, increasing the world container traffic volumes, China's economic development, and trade volume in the Northeast Asia to generate a lot of are changing the perception of the role and importance of the port. According to the review of the master plan and the port recognition in Korean Port, this study examines determining factors which affects the port cargo volume. The target of the study is domestic small and medium-sized container port that receives a large hinterland cargo volume, excluding the impact of the Global Hub Port like Busan and Gwangyang port. Factors that affect the multiple regression analysis result of the port cargo volume are berthing capacity, degree of activation, connection number of countries, GRDP and number of manufacturers.