• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.73
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• pp.43-63
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• 2017

Amidst dynamic business environment, creating competitive advantage, source of competitiveness, is a critical issue for international port operations. To overcome limitations of prior studies adopted cross-sectional approach, this study reviews a way to continually sustain and create competitive advantage, based on the case of Busan port in South Korea. Development plans, operations and management practices from2005 to 2014 were investigated and reviewed. Results revealed that enhancement of infrastructure, new engine to sustainable growth, green and safety, and partnership enhancement were a source of creating competitive advantage. The results help theoretical advances on competitiveness and its durability, and provide useful insights for creating competitive advantages and future improvement in international port operations.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.64
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• pp.213-237
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• 2014

The medical-device market of Myanmar in the recent Asian region is where the influences of Thailand, China, India and Singapore are being shown considerably with the lift-up of economic sanctions by America and the West. However, although the global capital and liberalization have widened the openness and the international concerns, the relative Myanmar's medical environment demands an active assistance and improvement. The study, recognizing the importance of Medical-Devices and their market conditions emerging as key business for knowledge-based industry, aims to obtain consequential meaningful suggestions, pursuant to relative export-concentration and sustainable market growth of Medical Devices, by analyzing inter-nation trade intensity for key Medical Device items. To do so, this study selected 8 nations in total by reviewing three points: core Medicine-advanced countries, geographically adjacent countries to Myanmar, and relative export-concentration.

• Proceedings of the Safety Management and Science Conference
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• 2005.05a
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• pp.467-475
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• 2005

This research has been conducted in order to assess the effects on quality management factor of the construction sites. 30 companies abiding by the 'construction industry law' and 32 companies abiding by the 'housing construction promotion law' have been researched in areas of quality-management environment, quality-management understanding, quality-management education on construction field, quality-system and quality-improvement. This construction quality factors are to realized the anticipated results not only quality level's increasing, but also company's confidence, competitiveness. We were able to obtain participations of 62 questionnaire, and derived statistics by means of SPSS/PC version 10.0. In this study, we find the bottleneck factor for promotion and upgrade quality management factor of the construction sites and suggest a way out of difficulties.

• Journal of the Korea Safety Management & Science
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• v.7 no.3
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• pp.29-36
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• 2005

This research has been conducted in order to assess the effects on quality management factor of the construction sites. 30 companies abiding by the 'construction industry law' and 32 companies abiding by the 'housing construction promotion law' have been researched in areas of quality-management environment, quality-management understanding, quality-management education on construction field, quality-system and quality-improvement. This construction quality factors are to realized the anticipated results not only quality level's increasing, but also company's confidence, competitiveness. We were able to obtain participations of 62 questionnaire, and derived statistics by means of SPSS/PC version 10.0. In this study, we find the bottleneck factor for promotion and upgrade quality management factor of the construction sites and suggest a way out of difficulties.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.8B
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• pp.735-744
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• 2008

This paper proposes a 'secure node' to be robust against network-based DoS attacks. The secure node selectively accepts new sessions based on the Zipf's law while a link is in the overload state. Our scheme calculates a threshold value for overload state, and provides a dynamic service mechanism for enhancing availability of a web server. The simulation results show performance improvement of the proposed scheme in terms of completion/connection ratios.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.01a
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• pp.177-178
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• 2022

"윤창호법" 시행 이후 음주운전이 크게 줄지 않았을 뿐 아니라 최근에는 다시 증가하는 추세를 보인다. 이에 본 논문에서는 우리나라와 일본의 음주운전 법적 기준 및 법정 형량, 등을 비교·분석하여 시사점을 제시하였다. 현재 음주운전 사상사고가 지속해서 발생하고 있고, 아직도 음주운전의 처벌이 강하지 않다는 인식이 크다. 이에 해외 사례 등을 참고하여 우리나라 현실에 부합하는 새로운 대안을 마련하고자 하며, 나아가 미래 자동차 디지털화 시대에 맞춰 변화될 법 제도의 올바른 방향에 대하여 고찰하고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.145-146
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• 2016

최근 무모한 운전으로 인해 운전자들 간의 난폭운전 및 보복운전이 증가하고 있다. 이러한 사회적 문제가 부각됨에 따라 "도로교통법"상 난폭운전에 관한 처벌 규정이 2016년 2월부터 시행되고 있다. 그럼에도 불구하고 여전히 계속해서 난폭운전이 증가하고 있는데, 그 원인을 분석하고 난폭운전의 정의 및 기준을 명확히 설정해야 법적안정성을 확보할 수 있을 것이다. 특히, 처벌규정에 있어서도 문제점이 무엇인지 검토하고 이에 대한 개선방안 및 예방대책을 모색할 필요가 있다.

• Transactions of the Korean Society of Mechanical Engineers
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• v.18 no.4
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• pp.977-985
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• 1994

New computer-aided calibration methods for the hot-wire and split film probes are presented. The proposed modified king's law takes into account instantaneous flow angle as well as the variation of calibration coefficients due to the total velocity magnitude change. It is found that the look-up table method has many advantages with respect to the accuracy on data and reducing run time for calibration over other conventional methods. In order to investigate the local sensitivity of the static calibration, a dynamic calibration procedure is also carried out.

• The Transactions of the Korean Institute of Electrical Engineers
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• v.41 no.1
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• pp.63-72
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• 1992

A tracking controller which can improve the performance of nonlinear electrohydraulic position control system is designed and implemented. The method is based on augmenting the system with integrators, obtaining the feedback control law which stabilizes the linear part of the original nonlinear system, and then reajusting the feedback gains using the deseribing funtion method to eliminate the limit cycle in the steady state. The proposed control law is implemented using OP amplifiers, and step and ramp response tests are carried out in the electrohydraulic servomechanism. The results show the improvement in both rransient and steady-state response.

• Journal of Advanced Marine Engineering and Technology
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• v.15 no.2
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• pp.73-83
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• 1991

A tracking controller which can improve the performance of nonlinear electrohydraulic position control systems is designed and implemented. The method is based on augmenting the system with both compensated integrator and additional integrator, obtaining the feedback control law which stabilizes the linear part of the original nonlinear system, and then readjusting the feedback gains using the describing function method to eliminate the limit cycle in the steady-state. The proposed control law is implemented using OP amplifiers and electronic components, and step and ramp response tests are carried out in the electrohydraulic servomechanism EHS-160. The results show the improvement in both transient and steady-state responses.