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Outlook for North Korean Economic Reform and Marketization
Mimura Mitsuhiro 통일연구원 2011 International journal of korean unification studie Vol.20 No.2
In North Korea, there are some sectors in which non-national or unplanned production prevails, but it can hardly be said that marketization is institutionalized. In that sense, the North Korean economy is neither a planned economy nor a market economy. Although real marketization has not started in full in North Korea, “marketization from the bottom” has brought centrifugal forces to the system of government in North Korea, which used to be unified under the supreme leader and the Korean Workers’ Party. Considering the industry structure of North Korea, the stable supply of consumer goods depends primarily on agricultural production, light industry production and growth in imports. Rehabilitation and growth of heavy industry require more investment by both domestic and foreign sources. In order for North Korea to foster sound economic development, marketoriented policies, not merely the introduction of some competitive aspects, are needed. This requires both spontaneous motivation in North Korea and support from the outside world at the same time. A healthier economic condition is one important factor in enabling North Korea to maintain a comparatively stable political administration in the post-Kim Jong-il era.
Mimura Masato 중앙대학교 한국전자무역연구소 2009 전자무역연구 Vol.7 No.4
Over recent decades maritime accidents are among the environmental disasters that have resulted in most social alarm. These disasters have included spills involving hydrocarbons, toxic substances and shipwrecks. Sea transport may be globally considered as one of the most environmentally innocuous forms of transport. Port policy has a strategic nature, and the construction of large ports is either carried out by state initiative or is state-controlled in the majority of countries. However, the ports operation is usually subject to the highest competitive market rules. From the environmental point of view, sea ports can be the source of considerable impacts both on marine and land habitats. Due to their special features, sea ports are very complex systems with a wide range of environmental issues: releases to water, air and soil, waste production, noise, and dredging amongst others. An essential point of an environmental management system is the identification of the significant environmental aspects. The purpose of this paper is to contribute to the environment protection of maritime ports in Japan by studying the environment and ports.
Mayumi Mimura,Sachiko Kitano,Katsunobu Yoshitomi,Hiroaki 환태평양유아교육연구학회 2009 Asia-Pacific journal of research in early childhoo Vol.3 No.1
The vocal pitch matching ability is one of the most important abilities in music education. This study focuses on children’s development of the vocal pitch matching ability. Children of 4- and 5-year-olds in two kindergartens, and one class of the first 3 grades of the elementary school listened to musical tones and were asked to reproduce by singing what they had heard. The types of musical inputs were (1) piano sounds; (2) female singing voice sounds; and (3) chants with female singing voice sounds. As for the results, (3) input led to the best answer and the second best was (2). It was easier for children to match the pitch with voice sounds inputs with meaning. Children’s pitch matching ability was higher in the kindergarten offering music activities intentionally. From the study, the importance of developing a system- atic music transition program for children to improve their music ability is suggested.
Lubricating performance of vegetable oils as environmentally friendly fluids
K. MIMURA,S. MITSUMUNE,I. MINAMI 한국트라이볼로지학회 2002 한국트라이볼로지학회 학술대회 Vol.2002 No.10
Although vegetable oils provide good lubricity, they still need optimization by certain additive technology for practical applications. ZDTP improve antiwear properties of vegetable oils. However the additive performance depends on quality of the base oil. Antioxidants were applied to prevent the auto-oxidation of vegetable oils. Good synergistic effect of anti-wear and anti-oxidant additives was confirmed.
Experimental study of PID auto-tuning for unsymmetrical processes
Kazuhiro Mimura,Tetsuo Shiotsuki 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
The advent of relay auto-tuning of PID controllers got rid of previous troublesome tuning procedure. However, PID control performance didn"t change so much since the tuning rule was the same as the Ziegler and Nicholsthat only use ultimate gain and ultimate period. In this paper, we propose new tuning rule especially for an unsymmetrical process. The experimental test result showed proposed rule achieved less overshoot and quicker disturbance recovery than conventional tuning rule.