• Transactions of the Korean Society of Machine Tool Engineers
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• v.17 no.6
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• pp.1-7
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• 2008

This paper research the trend of technology of the high efficient and reliability machining center and high flexibility parallel manipulator machining center including linear motor machining center, submicron machining center and direct drive 5 axis machining center using patent information of Korea, U.S.A, Japan and Europe. By using this, the technique level of Korea, the International trend of technology and condition of cooperation research was estimated and the necessity of research and development performance about the machining center for the IT part processing were inquired.

• Journal of Institute of Control, Robotics and Systems
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• v.14 no.12
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• pp.1232-1237
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• 2008

This paper introduces an application of wavelet analysis to the sensor fusion of GPS/INS/baroaltimeter. Using wavelet analysis the baro-inertial altitude is decomposed into the low frequency content and the high frequency content. The high frequency components, 'details', represent the perturbed altitude change from the long time trend. GPS altitude is also broken down by a wavelet decomposition. The low frequency components, 'approximations', of the decomposed signal address the long-term trend of altitude. It is proposed that the final altitude be determined as the sum of both the details of the baro-inertial altitude and the approximations of GPS altitude. Then the final altitude exclude long-term baro-inertial errors and short-term GPS errors. Finally, it is shown from the test results that the proposed method produces continuous and sensitive altitude successfully.

• Proceedings of the Korean Nuclear Society Conference
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• 1995.10a
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• pp.293-299
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• 1995

A methodology is applied to identify tile learning trend related to the safety and availability of U.S. commercial nuclear power plants. The application is intended to aid in reducing likelihood of human errors. To assure that tile methodology ran be easily adapted to various types of classification schemes of operation data, a data bank classified by the Transient Analysis Classification and Evaluation(TRACE) scheme is selected for the methodology. The significance criteria for human-initiated events affecting tile systems and for events caused by human deficiencies were used. Clustering analysis was used to identify the learning trend in multi-dimensional histograms. A computer rode is developed based on tile K-Means algorithm and applied to find the learning period in which error rates are monotonously decreasing with plant age.

• Nuclear Engineering and Technology
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• v.41 no.3
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• pp.237-246
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• 2009

Digitalization of not only non-safety but also safety-grade I &C systems with full computerized Main Control Room (MCR) is the recent trend of I&C systems of nuclear power plants (NPP) around the world, while plant maintenance has been shifting from traditional time based maintenance to condition based maintenance. In order to cope with the new trend of operation and maintenance in NPP, a concept of online distributed diagnostic system for both plant operation and maintenance has been proposed in order to further improve both the plant efficiency and the work environment of plant operation staff members by organizational learning. In this respect, the research subjects of human machine interface (HMI) for the online distributed diagnostic system are also discussed for supporting the plant personnel at both MCR and local working places in the plant by the application of advanced ICT (Information and Communication Technologies).

• Proceedings of the KIEE Conference
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• 1996.07c
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• pp.1654-1656
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• 1996

Generallly speaking, busbar made with Cu or Cu alloys and producted by plastic manufacturing process. In this study, we reacarch the trend and manufacturing of Cu clad Al busbar for low cost and light weight which used for a electric power suply of distributing board. The objectives of this study is the trend of busbar on electric power supply, the process and application for Cu clad Al busbar and the relation between electric properites and manufacturing operating process on contact parties

• 한국전기화학회:학술대회논문집
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• 2004.11a
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• pp.75-108
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• 2004

The market, development and trend of Lithium ion Batteries in China are introduce briefly. Early, Chinese manufactories were busy to expand and many new battery factories have been built up. Now, the relatively large companies pay more attentions on comprehensive quality improvement, therefore the production processing and facilities have been also modified in some extent. The recent technology progresses focus on High capacity (energy density), High rate, High average voltage, High safety, High temperature properties, Long cycle life, Low temperature properties, Low self discharge, Low cost, Super-large, Super-small, Super-thin, Consistency, Customization, and Environment friendly processing, simply $H_5L_4S_3C_2E_1$. Lithium ion polymer batteries which all batteries packaged with soft lamination film are named as in China have a quick growth and emphasized here because of their advantages ins $H_5L_4S_3C_2E_1$ for which it is quite difficult to be realized at the same time. Some of research works such as listed above are introduced. The other contends related to application trend of Lithium ion batteries and projects carrying out are also included.

• Proceedings of the IEEK Conference
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• summer
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• pp.171-175
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• 2004

Network management for detail analysis can cause speed decline of application in case of lack band width by traffic increase of the explosive Internet. Because a manager requests MIB value for the desired objects to an agent by management policy, and then the agent responds to the manager. Such processes are repeated, so it can cause increase of network traffic. Specially, repetitious occurrence of sending-receiving information is very inefficient for a same object when a trend analysis of traffic is performed. In this paper, an efficient SNMP is proposed to add new PDUs into the existing SNMP in order to accept time function. Utilizing this PDU, it minimizes unnecessary sending-receiving message and collects information for trend management of network efficiently. This proposed SNMP is tested for compatibility with the existing SNMP and decreases amount of network traffic largely

• Journal of Ginseng Research
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• v.32 no.2
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• pp.135-149
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• 2008

This research entailed collecting foreign and foreign patents on technologies for process food related ginseng, creating category of patent technology searching and conducting quantitative analysis on each technology component and schematization. A technological trend of treating or preventing multiplicity of diseases has reviewed on 6,255 domestic and foreign patents from the year 1975 to 2004. Considering the increasing number of applicant and application of patent on technology of food manufacturing and processing in the world around year 2000, it seem that these technology is developing. The related technology seems in the initial stage and common research by related technology research centers, government organization and public corporation becomes active.

• Journal of the Ergonomics Society of Korea
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• v.32 no.4
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• pp.293-295
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• 2013

Objective: The objective of this study is to examine the characteristics of the research on human vibration in Korea. Background: There have been relatively less interests in vibration than other ergonomic factors in Korea. However, the importance of vibration is increasing as industry and everyday life are more mechanized. Method: This study reports the results of the literature review on the papers about human vibration published in ergonomics-related domestic journals. Results: It was found that more studies have been done on local vibration than on whole body vibration. Diverse topics have been studied in ergonomics community. Conclusion: Further cutting-edge studies are expected than classical safety and health related ones. Application: Some suggestions were proposed hopefully helpful to colleague ergonomists for future research.

• Current Industrial and Technological Trends in Aerospace
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• v.9 no.1
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• pp.150-157
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• 2011

In launch site, optical tracking system equipped with high performance lens is used to acquire images of launch vehicle in the early stage of the ascent phase. This article describes a technical trend of various lens as well as its application to optical tracking system.