• Journal of Institute of Control, Robotics and Systems
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• v.22 no.7
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• pp.491-495
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• 2016

We deal with the regulation problem of nonlinear systems with time-varying delays in both the states and input. A new state feedback controller with dynamic gains is developed based on matrix inequality and non-predictor methods. The proposed control scheme is analyzed using the Razumikhin theorem, and its effectiveness is demonstrated with simulation results.

• Journal of Microbiology and Biotechnology
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• v.17 no.2
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• pp.187-194
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• 2007

In order to utilize different nitrogen sources and to survive in a situation of nitrogen limitation, microorganisms have developed sophisticated mechanisms to adapt their metabolism to a changing nitrogen supply. In this communication, the recent knowledge of nitrogen regulation in the amino acid producer Corynebacterium glutamicum is summarized. The core adaptations of C. glutamicum to nitrogen limitation on the level of transcription are controlled by the global regulator AmtR. Further components of the signal pathway are GlnK, a $P_{II}-type$ signal transduction protein, and GlnD. Mechanisms involved in nitrogen control in C. glutamicum regulating gene expression and protein activity are repression of transcription, protein-complex formation, protein modification by adenylylation, change of intracellular localization, and proteolysis.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.75
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• pp.159-177
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• 2017

In this paper, we examined trends and regulations of the global medical equipment industry through literature search. The medical equipment industry is attracting attention as a new growth engine in the Fourth Industrial revolution. However, the medical device industry is a highly competitive field due to product diversity, short product life cycle and technological advances. In addition, Medical equipment are related to human health and safety. Therefore, it can only be exported if it is approved by national or international standards. Therefore, from the development stage of the product, the medical equipment should designate the country to be exported and develop a medical equipment that meets the requirements for licensing the medical equipment in the country. Therefore, In this paper, In this paper, we will present the practical considerations of the medical equipment exporting company by examining the global medical equipment market trends and the regulations related to medical equipment in major countries.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.777-778
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• 2009

• Journal of the Korea Safety Management & Science
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• v.12 no.2
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• pp.133-138
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• 2010

The environmental regulation of a product is a global trend. The environmental regulation directives such as RoHS, WEEE, ELV and REACH have impacted Korean export-oriented auto parts manufacturer and affects the export of the product to aboard. In electronics manufacture and auto parts manufacturer, there are different systems for environmental regulation compliance. Nowadays the automotive mechatronics parts in a car are increasing. The HEV and intelligent car will need more mechatronics parts. It is necessary to apply the environmental regulation system of electronics to the automotive parts. In this paper, we proposed the application of PDX standard used in electronic industry to the BOM of the auto parts manufactures and showed an example of generated BOM for selected auto part using PDX. The PDX-based BOM can be used for the recording of environmental substances of the automotive mechatronics part and help the collaboration across auto parts manufactures in accordance with environmental regulation.

• Plant Journal
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• v.8 no.2
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• pp.70-81
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• 2012

The study aims to supplement facility management plan and safety regulations & standard of oil pipeline by searching and reviewing related regulation & standard inside and outside of the country. Korean regulation & standard is reviewed based on harbor and fishery design standard of the ministry of maritime affairs and fisheries, general technology standard of oil pipeline safety regulation, gas excavation construction and safety maintenance indicator of Korea gas corporation. Global regulation & standard is reviewed based on U.S standard inspection for offshore pipeline and Europe/Mexico standard inspection for offshore pipeline. The contents of offshore pipeline installation is inserted into pipeline sector for objected facilities of safety inspection regulation & standard and, the standard of safety inspection for offshore pipeline is newly presented into pipeline maintenance part of the planning facilities management with its inspection period and method.

• Proceedings of the Microbiological Society of Korea Conference
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• 2009.05a
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• pp.94-95
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• 2009

• Journal of Information Technology Services
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• v.21 no.6
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• pp.127-145
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• 2022

Luna Coin, which ranked eighth in the global market capitalization and established itself as a super-large stablecoin, plunged overnight, shocking the market. Therefore, this study proposed the direction of Korea's stablecoin regulation, focusing on the Terra-Luna situation, starting with the question of whether the stable coin's value, 'stability', can be trusted. The whole story of the Terra-Luna incident was examined in depth and the problems were pointed out, and the direction of domestic stable coin regulation was described based on overseas cases. In the absence of any legal guidelines for stablecoin at the moment, we hope that this study will provide a minimum stabilizer in the virtual asset market and help protect investors.

• Journal of Families and Better Life
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• v.20 no.2
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• pp.203-214
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• 2002

This study of the relationships between children's depression and anxiety and their children's self-esteem and emotional intelligence had a sample of 984 5th grade children The higher the levels of children's depression and anxiety were, the lower their self-esteem consisting of scholastic competence, social acceptance, atheletic competence, physical appearance, behavioral conduct, and global self-worth were. The higher the levels of children's depression and anxiety were, the lower their emotional intelligence(EI) consisting of self-regulation and emotion utilization, perception of emotion, other-regulation and self-expression were. For boys, scholastic competence and social competence among children's self-esteem factors were the factors best explained by children's depression and anxiety. In addition, boy's perception of emotion was explained by their depression and anxiety. For girls, on the other hand global self-worth and social competence among self-esteem factors were the two factors best explained by their depression and anxiety. Self-regulation and emotion utilization was the El factor best explained by depression and anxiety among girls.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.63 no.3
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• pp.437-443
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• 2014

Electric motors and drives consume the largest amount of electricity more than 40% of global electricity consumption. In addition, motors, drives and its components are included in the global high-trade products and the main driving source for industrial equipment and house appliances. Thus, International standards and regulations for their safety and efficiency are internationally being discussed and created for the protection of its citizens and energy saving. So, understanding the international standards and the regulation of each country is essential to enhance overseas market and to develop product. In this paper, on the basis of this background, status and trends of international standards and regulations are introduced for safety and efficiency of motors and the drives. Safety and efficiency of the IEC (International Electrotechical Commission) standards are introduced in the emphasis. Also, regulations are studied about the differences and trends in each county.