Pub Date : 2017-01-01DOI: 10.5394/KINPR.2017.41.4.181
Yun-Ok Yang
In the existing ship sales market, prices determined based on the prices of similar ship types that recently traded. ince the 2008 financial crisis, ship prices have fluctuated, and ship price criteria have become ever more necessary to the imminent value of the ship. Therefore, this research used the hedonic price model to estimate imminent values of ships. In this study, the influence on ship prices was analyzed by the value of each characteristic and an estimated functional formula was . Out of the four models suggested by the hedonic price model, an optimal model was selected with variance inflation factors and a stepwise selection. For this, the influence of determinants of ship prices was analyzed based on actually traded ships and characteristic data. The selected model s the Log-Line model; as a result of regression analysis, eight variables, including DWT, Age, Market Value, Short-Term Charter, Long-Term Charter, Enbloc, Special Survey Due and Builder were to affect the ship price model. This model is expected to be useful for objective and balanced ship price evaluation.
{"title":"A Study on the Selection of Pricing Factors for Used Bulk Carriers","authors":"Yun-Ok Yang","doi":"10.5394/KINPR.2017.41.4.181","DOIUrl":"https://doi.org/10.5394/KINPR.2017.41.4.181","url":null,"abstract":"In the existing ship sales market, prices determined based on the prices of similar ship types that recently traded. ince the 2008 financial crisis, ship prices have fluctuated, and ship price criteria have become ever more necessary to the imminent value of the ship. Therefore, this research used the hedonic price model to estimate imminent values of ships. In this study, the influence on ship prices was analyzed by the value of each characteristic and an estimated functional formula was . Out of the four models suggested by the hedonic price model, an optimal model was selected with variance inflation factors and a stepwise selection. For this, the influence of determinants of ship prices was analyzed based on actually traded ships and characteristic data. The selected model s the Log-Line model; as a result of regression analysis, eight variables, including DWT, Age, Market Value, Short-Term Charter, Long-Term Charter, Enbloc, Special Survey Due and Builder were to affect the ship price model. This model is expected to be useful for objective and balanced ship price evaluation.","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"33 1","pages":"181-188"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90266477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.5394/KINPR.2016.40.6.421
Park Sang-Kook, Kim Young-Du
In this study, a gate simulation model was developed to reduce the truck waiting time for trucking companies servicing container terminals. To verify the developed model, 4 weeks of truck gate-in/gate-out data was collected in December 2014 at the Port of Busan New Port. Also, the existing gate system was compared to the proposed gate system using the developed simulation model. The result showed that based on East gate-in, a maximum number of 50 waiting trucks with a maximum waiting time of 120 minutes. With the proposed system the maximum number of waiting trucks was 10 with a maximum waiting time of 5.3 minutes. Based on West gate-in, the maximum number of waiting trucks was 17 and the maximum waiting time was 34 minutes in the existing gate system. With the proposed system the maximum number of waiting trucks was 10 with a maximum waiting time of 5.3 minutes. Based on West gate-out, the maximum number of waiting trucks was 11 with a maximum waiting time of 5.5 minutes. With the proposed system the maximum number of waiting trucks was 9 with a maximum waiting time of 4.4 minutes. This developed model shows howmany waiting trucks there are, depending on the gate-in/gate-out time of each truck. This system can be used to find optimal gate system operating standards by assuming and adjusting the gate-in/gate-out time of each truck in different situations.
{"title":"Simulation Model Development for Configuring a Optimal Port Gate System","authors":"Park Sang-Kook, Kim Young-Du","doi":"10.5394/KINPR.2016.40.6.421","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.6.421","url":null,"abstract":"In this study, a gate simulation model was developed to reduce the truck waiting time for trucking companies servicing container terminals. To verify the developed model, 4 weeks of truck gate-in/gate-out data was collected in December 2014 at the Port of Busan New Port. Also, the existing gate system was compared to the proposed gate system using the developed simulation model. The result showed that based on East gate-in, a maximum number of 50 waiting trucks with a maximum waiting time of 120 minutes. With the proposed system the maximum number of waiting trucks was 10 with a maximum waiting time of 5.3 minutes. Based on West gate-in, the maximum number of waiting trucks was 17 and the maximum waiting time was 34 minutes in the existing gate system. With the proposed system the maximum number of waiting trucks was 10 with a maximum waiting time of 5.3 minutes. Based on West gate-out, the maximum number of waiting trucks was 11 with a maximum waiting time of 5.5 minutes. With the proposed system the maximum number of waiting trucks was 9 with a maximum waiting time of 4.4 minutes. This developed model shows howmany waiting trucks there are, depending on the gate-in/gate-out time of each truck. This system can be used to find optimal gate system operating standards by assuming and adjusting the gate-in/gate-out time of each truck in different situations.","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"2016 1","pages":"421-430"},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86261246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.5394/KINPR.2016.40.6.431
Younghun Kang, Han-Seok Lee
{"title":"A Study on Facilities Planning for Recreational Fishing Complexes","authors":"Younghun Kang, Han-Seok Lee","doi":"10.5394/KINPR.2016.40.6.431","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.6.431","url":null,"abstract":"","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"104 1","pages":"431-440"},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84657969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.5394/KINPR.2016.40.6.451
Sung-Yhun Lee
{"title":"The Effects of Economic Conditions on Capital Structure : Evidence from Korean Shipping Firms","authors":"Sung-Yhun Lee","doi":"10.5394/KINPR.2016.40.6.451","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.6.451","url":null,"abstract":"","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"153 1","pages":"451-458"},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76889659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.5394/KINPR.2016.40.6.459
Chul Shin, Hayeong Moon, Jin-Hee Park
국내 컨테이너 화물의 수출이 수입에 비해 감소하면서 특히, 경인지역 내 공 컨테이너의 순환 문제가 심각한 수준에 이르렀다. 이에 경인지역 내 공 컨테이너 반납지(의왕 ICD 및 인천항)에는 공 컨테이너가 계속해서 쌓여 가고, 일부 선사들은 공 컨테이너의 부산 반납을 의무화하여 업계 내 마찰까지 발생하는 상황이다. ...
{"title":"A Study to Solve Empty Container Return Problems in Gyeongin Province","authors":"Chul Shin, Hayeong Moon, Jin-Hee Park","doi":"10.5394/KINPR.2016.40.6.459","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.6.459","url":null,"abstract":"국내 컨테이너 화물의 수출이 수입에 비해 감소하면서 특히, 경인지역 내 공 컨테이너의 순환 문제가 심각한 수준에 이르렀다. 이에 경인지역 내 공 컨테이너 반납지(의왕 ICD 및 인천항)에는 공 컨테이너가 계속해서 쌓여 가고, 일부 선사들은 공 컨테이너의 부산 반납을 의무화하여 업계 내 마찰까지 발생하는 상황이다. ...","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"230 1","pages":"459-468"},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82062396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.5394/KINPR.2016.40.6.391
Seong-O Na, Seunghak Lee, Hyuek-Jin Choi
{"title":"Fundamental Research on the Development of a Risk Based Decision Support System for Maritime Accident Response: Focused on Oil Tanker Grounding","authors":"Seong-O Na, Seunghak Lee, Hyuek-Jin Choi","doi":"10.5394/KINPR.2016.40.6.391","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.6.391","url":null,"abstract":"","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"135 1","pages":"391-400"},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86296115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-12-31DOI: 10.5394/KINPR.2016.40.6.369
Hee-Yong Lee
Recently, due to the rapid development of smart computing technology, there have been a lot of studies on 3D navigation, and consequently the advanced commercial 3D navigation system and 3D VTS system are on the market. Even the 3D technology is well known and wide spreaded, unfortunately, the secret of code behind is still unleashed. The purpose of this paper is to show the basic methodologies to display ENC features under 3D display environment to meet the requirement of S-52 standards. The OpenGL ES is used to develop 3D ENC Viewer for further use on mobile platforms and web based vessel monitoring system. Particularly, area object triangulation, complex line drawing, polygon pattern filling and symbol drawing by texture mapping are explained in detail. The result of performance test is shown as table for correlation of SENC file size to display speed.
{"title":"A Study on the Depiction of ENC Features to Apply S-52 Standards Under the 3D Visualization Environment","authors":"Hee-Yong Lee","doi":"10.5394/KINPR.2016.40.6.369","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.6.369","url":null,"abstract":"Recently, due to the rapid development of smart computing technology, there have been a lot of studies on 3D navigation, and consequently the advanced commercial 3D navigation system and 3D VTS system are on the market. Even the 3D technology is well known and wide spreaded, unfortunately, the secret of code behind is still unleashed. The purpose of this paper is to show the basic methodologies to display ENC features under 3D display environment to meet the requirement of S-52 standards. The OpenGL ES is used to develop 3D ENC Viewer for further use on mobile platforms and web based vessel monitoring system. Particularly, area object triangulation, complex line drawing, polygon pattern filling and symbol drawing by texture mapping are explained in detail. The result of performance test is shown as table for correlation of SENC file size to display speed.","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"20 1","pages":"369-374"},"PeriodicalIF":0.0,"publicationDate":"2016-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73848937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-31DOI: 10.5394/KINPR.2016.40.5.241
B. Pan, Anne Njonjo, Tae-Gweon Jeong
The purpose of this paper is to determine the optimal values of the gain parameters used in the tracking module for a highly dynamic warship. The algorithm of the tracking module uses the -- filter to compute accurate estimates and update the state variables, that is, positions, velocity and acceleration. The filtering coefficients , and are determined from set values of the damping parameter, . Optimization is achieved by plotting a range of the damping parameter against the corresponding residual error and then selecting the best value of ξ with the minimum residual error. Optimal values of the smoothing coefficients are subsequently computed from the selected damping parameter, . Key word : Tracking module, -- filter, optimization, smoothing, prediction, state variables, residual error †Corresponding Author: tgjeong@kmou.ac.kr 051)410-4246 * Representing Author: pbf9527@gmail.com ** njonjoann@gmail.com
{"title":"Optimization of the Gain Parameters in a Tracking Module for ARPA system on Board High Dynamic Warships","authors":"B. Pan, Anne Njonjo, Tae-Gweon Jeong","doi":"10.5394/KINPR.2016.40.5.241","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.5.241","url":null,"abstract":"The purpose of this paper is to determine the optimal values of the gain parameters used in the tracking module for a highly dynamic warship. The algorithm of the tracking module uses the -- filter to compute accurate estimates and update the state variables, that is, positions, velocity and acceleration. The filtering coefficients , and are determined from set values of the damping parameter, . Optimization is achieved by plotting a range of the damping parameter against the corresponding residual error and then selecting the best value of ξ with the minimum residual error. Optimal values of the smoothing coefficients are subsequently computed from the selected damping parameter, . Key word : Tracking module, -- filter, optimization, smoothing, prediction, state variables, residual error †Corresponding Author: tgjeong@kmou.ac.kr 051)410-4246 * Representing Author: pbf9527@gmail.com ** njonjoann@gmail.com","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"3 1","pages":"241-247"},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75212697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-31DOI: 10.5394/KINPR.2016.40.5.311
Thi Yen Pham, Hye-Min Ma, Gi-Tae Yeo
Vietnam is one of Asia’s fastest developing economies. A long coastline of nearly 3,500 km provides a comparative advantage for Vietnam in developing a seaport system. Despite accounting for only about 30% of Vietnam’s traffic volume, the Northern seaports have rapidly developed over the years. However, the location of the container terminals close to the common hinterland are a cause of fierce competition among container terminals. To outperform rivals and improve competitiveness, it is essential to identify the competitive positions of container terminals. This study analyzes the competitive positioning of container terminals in the northern region of Vietnam between 2005 and 2014 by applying the Boston Consulting Group (BCG) matrix in order to assist terminal operators and policy makers to generate strategic planning as well as to improve priorities for development. Otherwise, the period from 2005-2014 aims to clarify the static and dynamic positioning of container terminals. The results demonstrate that the Hai Phong terminal dominates the market, but the Nam Hai Dinh Vu and Dinh Vu terminals are considered as “star” performers. Quang Ninh, Doan Xa, and Transvina are losing their competitive positions in Northern Vietnam.
{"title":"A Strategic Positioning Analysis for Container Terminals in Northern Vietnam","authors":"Thi Yen Pham, Hye-Min Ma, Gi-Tae Yeo","doi":"10.5394/KINPR.2016.40.5.311","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.5.311","url":null,"abstract":"Vietnam is one of Asia’s fastest developing economies. A long coastline of nearly 3,500 km provides a comparative advantage for Vietnam in developing a seaport system. Despite accounting for only about 30% of Vietnam’s traffic volume, the Northern seaports have rapidly developed over the years. However, the location of the container terminals close to the common hinterland are a cause of fierce competition among container terminals. To outperform rivals and improve competitiveness, it is essential to identify the competitive positions of container terminals. This study analyzes the competitive positioning of container terminals in the northern region of Vietnam between 2005 and 2014 by applying the Boston Consulting Group (BCG) matrix in order to assist terminal operators and policy makers to generate strategic planning as well as to improve priorities for development. Otherwise, the period from 2005-2014 aims to clarify the static and dynamic positioning of container terminals. The results demonstrate that the Hai Phong terminal dominates the market, but the Nam Hai Dinh Vu and Dinh Vu terminals are considered as “star” performers. Quang Ninh, Doan Xa, and Transvina are losing their competitive positions in Northern Vietnam.","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"107 1","pages":"311-316"},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82548449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-31DOI: 10.5394/KINPR.2016.40.5.291
Woo-Lee Jeong
{"title":"A Comparative Analysis on the Application of Harbor Design Criteria to Channels at Ulsan Port","authors":"Woo-Lee Jeong","doi":"10.5394/KINPR.2016.40.5.291","DOIUrl":"https://doi.org/10.5394/KINPR.2016.40.5.291","url":null,"abstract":"","PeriodicalId":16242,"journal":{"name":"Journal of Korean navigation and port research","volume":"144 1","pages":"291-297"},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76242190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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