• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2022.06a
• /
• pp.127-128
• /
• 2022

자율운항선박의 육상원격제어시스템 개발을 위해 선박제어 모사장치를 이용한 원격제어장치, 원격모니터링, 통신시스템에 대한 개발 현황을 나열하고 향후 기능개선 개발 방향을 제시하고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2023.05a
• /
• pp.182-183
• /
• 2023

자율운항선박의 육상원격제어시스템을 개발하였고 육상에서의 선박 원격조종과 그에 대한 실시간 모니터링을 위하여 ECDIS 시스템을 도입하고 원격제어 모니터링에 적합하도록 육상용 ECDIS 시스템을 개발하기 위해 새로운 기능을 분석하였다.

• Journal of the Korea Convergence Society
• /
• v.12 no.4
• /
• pp.249-258
• /
• 2021

Bitcoin prices have been soaring recently as investors flock to cryptocurrency exchanges. The purpose of this study is to predict the Bitcoin price using a deep learning model and analyze whether Bitcoin is profitable through investment strategy. LSTM is utilized as Bitcoin prediction model with nonlinearity and long-term memory and the profitability of MA cross-over strategy with predicted prices as input variables is analyzed. Investment performance of Bitcoin strategy using LSTM forecast prices from 2013 to 2021 showed return improvement of 5.5% and 46% more than market price MA cross-over strategy and benchmark Buy & Hold strategy, respectively. The results of this study, which expanded to recent data, supported the inefficiency of the cryptocurrency market, as did previous studies, and showed the feasibility of using the deep learning model for Bitcoin investors. In future research, it is necessary to develop optimal prediction models and improve the profitability of Bitcoin investment strategies through performance comparison of various deep learning models.

• Journal of Korea Water Resources Association
• /
• v.52 no.11
• /
• pp.947-950
• /
• 2019

The main feature of this paper is to provide a driving control strategy to improve the primary clarifier treatment efficiency in the initial rainfall inflow. With the recent development of IoT technology and sensing technology, the basis for operation control of wastewater treatment facilities has been improved. As a result of improving the efficiency of treatment of primary clarifier using on-line measurement results, it is possible to minimize the outflow of untreated sewage and contribute to the improvement of operation efficiency of wastewater treatment plants.

• Convergence Security Journal
• /
• v.16 no.4
• /
• pp.53-61
• /
• 2016

A number of countries have been developing and implementing national cybersecurity strategy to prevent damages caused by cyber threats and to minimize damages when they happened. However, there are a lot of differences and disparities in respective strategies with their own background and needs. A vulnerability in some places can be a global problem, so various guidelines have been developed by relevant organizations including international organizations to support the establishment of national cybersecurity strategies and improvement of them. In this paper, with analysis on the guidelines for the establishment of national cybersecurity strategies, reference model consisting of common elements of strategies was suggested. And several recommendations for the improvement measures for Korean national cybersecurity strategies were explained with a comparison of the reference model.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.13 no.2
• /
• pp.115-123
• /
• 2018

This study is empirically intended to put forward the modeling and process improvement measures for the SCM capability in small venture firms. The findings are summarized as follows. There were strategic alliance, technological development and centralization in the modeling of strategic planning for supply chain, not the least of which is strategic alliance, followed by centralization and technological development. There were routing scheduling, network integration and third party logistics outsourcing in decision making, not the least of which was network integration. There were customer service management, productivity management and quality management in management control, not the least of which was quality management. And there were order management choice, pricing demand, shipment delivery and customer management in transaction support system, not the least of which was order management choice. As for the above-mentioned findings, to maximize the SCM capability and operate the optimized process in small venture firms, the existing strategic alliances can optimize the quality management and stabilize the transaction support system through the network sharing and integration from the perspective of relevant organizational members' capability and process improvement. And the strategic linkage between firms can maximize the integrated capability of information system beyond the simple exchange relation between electronic data, achieving a differentiated competitive advantage. Consequently, the systematization and centralization for the maximization of SCM capability, including the infrastructure construction based on the system compatibility and reliability for information integration, should be preceded before the modeling of the integrated capability for optimum supply chain and the best process management in the smart era.

• 사료
• /
• s.32
• /
• pp.6-10
• /
• 2008

• 인삼약초
• /
• v.4 no.1 s.11
• /
• pp.27-30
• /
• 2006

• 인삼약초
• /
• v.4 no.1 s.11
• /
• pp.19-26
• /
• 2006

• 인삼약초
• /
• v.4 no.1 s.11
• /
• pp.16-18
• /
• 2006