• Journal of Institute of Control, Robotics and Systems
• /
• v.8 no.8
• /
• pp.649-654
• /
• 2002

The essential philosophy of the QFT(Quantitative Feedback Theory) is that a suitable controller can be found by loop shaping a nominal loop transfer function such that the frequency response of this function does not violate the QFT bounds. The loop shaping synthesis involves the identification of a structure and its specialization by means of the parameter optimization. This paper presents an optimization algorithm to estimate the controller parameters from the frequency transfer function synthesis using the TLS(Total Least Squares) in the QFT loop shaping procedure. The proposed method identifies the parameter vector of the robust controller from an overdetermined linear system developed from rearranging the two dimensional system matrices and output vectors obtained from the QFT bounds. The feasibility of the suggested algorithm is illustrated with an example.

• Journal of Life Science
• /
• v.9 no.2
• /
• pp.34-39
• /
• 1999

The postsynaptic density (PSD) is a cytoskeletal specialization that is involved in the regulation of synaptic signal transduction. Mainly due to the hydrophobic nature of the PSD proteins, characterization of this intriguing structure at the molecular level has been very intractable until early 1990s. However, recent development in protein microchemistry and molecular cloning techniques allowed identification and characterization of the PSD proteins. As expected, cytoskeletal proteins constitute major components of the PSD. Other major PSD proteins have been identified by protein sequencing, and their genes were used to fish out associating proteins by yeast two-hybrid system expanding our knowledge on the molecular structure of the PSD significantly. In this review, I summarize proteins that are so far identified focusing on the glutamatergic synapses.

• Korean Journal of Organic Agriculture
• /
• v.9 no.3
• /
• pp.1-22
• /
• 2001

This article described the production problems, import conditions of organic livestock products and background of CODEX-guideline, and presented the counterplan for future organic livestock production policy. The essential counterplan for CODEX-guideline and construction of organic livestock production basis include ; - Specific funding of research and development for excellent livestock breeding with consideration of regional enviroment-friendly applications to improve the quality of organic livestock products, - Development of production potential and resources utilization of organic feeding stuffs in domestic and foreign countries, - Horizontal and vertical organization of organic livestock farming and multifarm cooperation, - Specialization of organic livestock farming, and construction for direct or indirect linkage markets and Agro-food corporation for closer cooperation between inner and outer factor of farm management, - Construction of recycling system for the enviroment-friendly utilization of animal excrements.

• Journal of Agricultural Extension & Community Development
• /
• v.1 no.1
• /
• pp.57-65
• /
• 1994

This study undertakes a critical survey of literatures on the nest development in agricultural extension system; T&V(Traininig and Visit Extension), FSR&E(Fanning Systems Research and Extension), and FF(Farmer First). The study compares the three extension systems in their establishment, objectives, charactersistics, and methods. to find the minor factors for the betterment of agricultural extension system. Those are; 1) client-oriented program, 2) educational service, 3) comprehensive goal and work, 4) benefit to wide range of customers, 5) democratic program, 6) participatory approach, 7) four based experiment, 8) linkages among participants, 9) specialization of extensionists, 10) autonomy of extension offices, 11) humanstic program.

• The Transactions of the Korean Institute of Electrical Engineers A
• /
• v.48 no.8
• /
• pp.972-979
• /
• 1999

QFT(Quantitative Feedback Theory) is a very practical design technique that emphasizes the use of feedback for achieving the desired system performance tolerances in despite of plant uncertainty and disturbance. The fundamental concept of QFT is a loop shaping procedure that a suitable controller can be found by shaping a nominal loop transfer function. The loop shaping synthesis involves the identification of a structure and the specialization of parameter optimization of a desired system. This paper presents an improved loop shaping approach of QFT with model validation using GA(Genetic Algorithm). The method presented in this paper removes the problems of iterative operation, transformation error, and model validation in the conventional methods without consideration of frequency domain.

• International conference on construction engineering and project management
• /
• 2011.02a
• /
• pp.493-497
• /
• 2011

Project delivery systems have evolved over the years. Continuous changes in technology and the increasing sophistication in buildings required specialization of design and construction services. IPD as a delivery method has been used in the USA and other countries. With the development of BIM, lots of construction companies have been realizing this method since BIM came out in China. However IPD are not considered with BIM, IPD will be an important role in management system of construction. This study introduced the definition of IPD and based on the flow process of IPD, compared the process in china and other countries. Through the real project and the condition in China this paper analyzed the feasibility of IPD in China.

• Journal of Korean Society of Forest Science
• /
• v.90 no.3
• /
• pp.346-354
• /
• 2001

This study was conducted to investigate the status and problems, and suggest the proper improvement of provincial rotation hunting system in Korea. There were many problems in recently provincial rotation hunting system, such as, difficulty of budget interiority, low participation rate of hunters, low specialization degree of officers on their job, and extremity of illegal capture of wildlife by the absence of wildlife manager. The municipal hunting system, which have many merits, such as, increase of hunters' participation and income of municipality, creation of engagement, and prohibit of illegal capture of wildlife would be suggest for the improvement of hunting system.

• Journal of the Society of Naval Architects of Korea
• /
• v.42 no.3
• /
• pp.276-283
• /
• 2005

The cooperative production system was proposed as an efficient production system to reduce the ship construction cost and to enhance the competitiveness for small/medium sized shipbuilder in the previous paper. In viewpoint of cooperative production system, the specialization of the FRP ship sizes has already been accomplished to reduce the number of the hull molds by FRP shipbuilders of the Sapjin industrial complex located in Mokpo area in 2003. There also exist lots of effective methods, as a cooperative production system, to cut down the construction cost. In this study, an effective production system in connection with the super structure and outfitting members is proposed such as the standardization of those items and specialized company which intensively produces the super structure and outfitting members at the collectivization area for cooperative work.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.16 no.7
• /
• pp.4641-4650
• /
• 2015

This study aims to further strengthen the medical expertise to offer specialized medical care specialization strategies to gain a competitive edge through the customer segmentation of the Regional Public Hospital. Investigation period was selected to study the inpatients 26,658 people January to December 2013. The method of analysis are Cluster analysis and Decision Tree Analysis. In conclusion, female, age over 60, and diseases in musculoskeletal system and connective tissue were commonly selected as identifiers of the target market of Regional Public Hospital. Customers in this target market are loyal to specialized medical service and keeping continuous relationship with these customers through communication and monitoring of results of provided medical service would be important because the effect of word of mouth propagated to other group of customers having equivalent scale of consumption is expected. And the concentration of the scope of medical service of Regional Public Hospital and the collaboration and mutual reliance of medical service under the strategic alliance with other institutions and private hospitals are also needed.

• International Commerce and Information Review
• /
• v.16 no.5
• /
• pp.225-248
• /
• 2014

Korea and China signed an FTA at November 10, 2014. The entry of China - the factory of the World - can be more active and easier. But Recently, China's economic growth is slowdown, and it began to emerge as a voice of concern. Therefore I analyze Chnia's economic slowdown is the impact on Korea's economy in this study. This study presented current trends and future prospects on China's economic situation. The changes of China's economic growth are the reduction of economic growth rate, falling proportion of processing trade, and the competition relationship of two countries. So they will be analyzed on this study. And this study presents ways that Korea economy reacts for China's economic growth slowdown. Trade statistics system of Korea International trade Association(KITA) is leveraged for this analysis. For competition relationship analysis, I analyze to use Contribution to the Trade Balance, Trade Specialization Index, Revealed Comparative Advantage of Country.