• Journal of the Korean Society of Marine Environment & Safety
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• v.11 no.2 s.23
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• pp.65-71
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• 2005

This paper presents the maritime education and training at CMA. There are two kinds of Federal Maritime Academies, i.e. U. S. Merchant Marine Academy (USMMA) and U. S. Coast Guard Academy, which are supported by federal government and six State Maritime Academies operated by each state. CMA is a unique campus of the California State University(CSU). A specialized education combining classroom instruction, hands-on experience and professional development prepare students for a successful career in international business and logistics, maritime policy, engineering, technology or in the maritime and transportation industries. All students of CMA, under licensed faculty supervision, learn and train aboard the Training Ship Golden Bear during a two-month training cruise in their first year at CMA. Second-year students participate in a land-based cooperative, or sail on a commercial cruise or the Training Ship GOLDEN BEAR depending on their major. Third-year maritime licensing option students take a final cruise on the training ship, while other students participate in an additional land-based cooperative. In their senior year, students take license exams to complete graduation requirements.

• Journal of Digital Convergence
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• v.13 no.4
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• pp.205-210
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• 2015

The auto industry has significantly evolved to the extent that much attention is paid to M2M (Machine-to-Machine) communication. In M2M communication which was first used in meteorology, environment, logistics, national defense, agriculture and stockbreeding, devices automatically communicate and operate in accordance with varying situations. M2M system is applied to vehicles, specifically to device-to-device communication inside cars, vehicle-to-vehicle communication, communication between vehicles and traffic facilities and that between vehicles and surroundings. However, communication systems are characterized by potential intruders' attacks in transmission sections, which may cause serious safety problems if vehicles' operating system, control system and engine control parts are attacked. Thus, device-to-device secure communication has been actively researched. With a view to secure communication between vehicular devices, the present study drew on hash functions and complex mathematical formulae to design a protocol, which was then tested with Casper/FDR, a tool for formal verification of protocols. In brief, the proposed protocol proved to operate safely against a range of attacks and be effective in practical application.

• Journal of the Korea Society of Computer and Information
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• v.24 no.12
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• pp.167-174
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• 2019

The purpose of this study was to analyze the factors affecting the drinking behavior of adolescents. Based on this, it aims to suggest the practical and policy measures to prevent the drinking behavior of adolescents and to mediate / reduce them. We used binomial logistic analysis as an analysis method.As a result of this study, the individual factors affecting alcohol drinking were gender, smoking experience over the past year, sexual satisfaction, cyber delinquency, self-esteem, parental abuse, peer as family factors. Peer trust was significantly associated with attachment factors, and school adaptation factors were not found to be associated with alcohol drinking in adolescents. This suggests that multilateral efforts such as individuals, families, and communities are needed to mediate and reduce the drinking behavior of adolescents.

• Journal of Korea Port Economic Association
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• v.23 no.1
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• pp.149-162
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• 2007

The purpose of this study is to forecast the marine trading volumes using multiplicative seasonal Autoregressive Integrated Moving Average(ARIMA) model. The paper proceeds by comparing the forecasting performances of the unload volumes with those of the load volumes with Box-Jenkins ARIMA model. Also, I present the predicted values based on the ARIMA model. The result shows that the trading volumes increase very slowly.

• 한국벤처창업학회:학술대회논문집
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• 2007.04a
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• pp.125-152
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• 2007

Last 1970's Korea opened the Kyoung-bu highways from Seoul to Pusan, and Korea government had change the transportation policy to focusing on the road and motors. but 1990's Korea had been the heavily traffic jam in long distant transportation system and logistics. That's why Korea government studied on feasibility survey of High-speed train. As the KTX opens, traffic networks covering large areas in Kyeongbu-line(Seoul-Daejeon-Busan) are expected to raise synergy effects in economics as well as in korean culture respects. Having been playing an important transportation role in Korea for the last 106 years. With opening of the high speed railway, KORAIL in inevitable to make a drastic reform. To achieve this purpose, it is necessary that KORAIL bas to be small and effective streamlined organization. In should increase traffic capacity by improving infra facilities. It need to also expand its internal functions by connecting the KTX with the conventional railroad system.

• Journal of Navigation and Port Research
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• v.26 no.4
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• pp.383-390
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• 2002

The time cost of ship end cargoes is one of the most important data for decision-making of port investment and operational efficiency. Studies in this area were initiated internationally by Goss and Mann in late 70's and also done in Korea 10 years ago using the same methodology as Goss. The main purpose of this paper is to revisit to estimate the time cost using updated data. The estimation was undertaken sampling data on various investment and operating costs by vessel from 205 vessels, comprising 47.5％ of the notional fleet in Korea as well as on cargoes from international trade statistics. Compared with the study of 10 years ago, major finding of this research is that time costs of liquid and dry bulk carriers have increased, in case of the former type, showing almost doubled cost increase. The increase is deemed to be caused by very expensive LNG carriers. Lowered social discount rate in this study compared with 10 years ago, in general, has mused the costs to stay at similar level to the previous study. Sensitivity tests were conducted using various social discount rates.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.197-198
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• 2019

Competition between global ports is intensifying as the number of calling ports has decreased due to the growth of ship size and the implementation of global environmental regulations has begun. Global ports are pushing for a strategic and concrete transition to smart ports in order to secure port competitiveness in the future. In Korea, however, the government plans and projects for promoting smart ports have yet to materialize, and related papers and research are lacking. In this paper, the concept of smart port was established, and the current status of technology and introduction of smart ports was analyzed. In addition, the concept of Smart Port Index(SPI) was presented in order to objectively and quantitatively compare the level of smartness. As a result,

• Journal of Korea Port Economic Association
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• v.31 no.3
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• pp.107-120
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• 2015

International logistics systems for cross-border trading aim not only to reduce costs and time, but also to maximize added value. For accuracy of shipping time, cost reduction, rapidity, and safety improvement, demand for Ro-Ro shipping as a global supply chain operating system has increased. To anticipate these demands, this study estimates the optimal demand and scale of Ro-Ro berth construction by analyzing shipping volumes between Korea and Japan. Based on Ro-Ro shipping speeds and distances between Korea and Japan, the shipping volume (container and general cargo) of Busan port is sorted into two separate zones. After analyzing the ratio of items that have great potential benefits from using Ro-Ro shipping, we estimate possible shipping volumes using Ro-Ro berth provision. The results reveal that two berths for 20,000t vessels are additionally required to accommodate the estimated volume. Results suggest the construction of an exclusive Ro-Ro berth in Busan port. This would not only accommodate the demand between Korea and Japan, but also provide a way to avoid the lean-to-one-side port policy.

• Journal of Korea Port Economic Association
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• v.32 no.4
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• pp.41-56
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• 2016

China is pushing a policy called China's Western Development in order to balance the continent's development level. They are connecting the rich natural resources of the mid-western areas and the capital of the eastern coastal areas of China. Since Korea depends on China the most for trade, it is necessary for Korea to always consider the trade scale and pattern changes of China. Response to changes in the transport and logistics system between the two countries is also demanded. This study aims to analyze the import and export trends between Korean and Chinese provinces of each item from the trade scale point of view. China's global trade routes reorganization and China's western development are considered and the corresponding direction is presented accordingly. The study also suggests strategies to expand the import and export scale with China based on the analysis.

• Journal of the Korean Society for Railway
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• v.16 no.6
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• pp.492-502
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• 2013

This paper analyzes the outcomes of railway reform in the form of vertical separation between the infrastructure and operation since 2004 in Korea. For the analysis, the paper reviewed theoretical issues and case studies of European and Japanese railway reforms efforts. By doing this, we find the implications and a standard model, most useful. Moreover, based on this analysis, the paper reviewed the status of the accomplishment of goals, including solution to current account deficits, improvements in competitiveness and greater efficiency of operations. Finally, the paper highlighted improvement measures to address the problems of railway vertical separation in Korea. This paper suggests specifications pertaining to rail policy and control methods; tower foundation and negotiations and mentions ways to establish legal institutionalization and to secure stable rail system investments in railway in Korea.