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조해용 ( Hae Yong Cho ),한기범 ( Ki Beom Han ),김관우 ( Kwan Woo Kim ),김종원 ( Jong Won Kim ),김문기 ( Moon Ki Kim ),조성열 ( Seong Yeol Cho ),이병구 ( Byung Gu Lee ),김기복 ( Ki Bok Kim ) 충북대학교 산업과학기술연구소 2010 산업과학기술연구 논문집 Vol.24 No.1
Copper tube rolling process using the planetary rolling mill has been studied by finite element method in this paper. This rolling process is that copper tube by 3-roll with mannesmass method. Also, rolling process has more advantage that make process and cost reduction than existing extrusion. This process includes various and complex process parameter. In other words, all process parameters have to be considered in copper tube rolling process. This paper performed kinematical analysis and embodiment of process through finite element analysis simulation based on plastic theory and conformed forming results in accordance with the change of process parameter. Therefore, the result prediction of copper tube rolling process through simulation is expected to reduce cost, time for the new product.
金和仙(Hwa-Sun Kim),朴春福(Chun-Bok Park),洪海淑(Hae-Sook Hong),趙勳(Hune Cho) 대한전기학회 2008 전기학회논문지 Vol.57 No.3
Medical environments incorporate complex and integrated data networks to transfer vast amounts of patient information, such as images, waveforms, and other digital data. To assure interoperability of images, waveforms and patient data, health level seven(HL7)was developed as an international standard to facilitate the communication and storage of medical data. We also adopted medical waveform description format encoding rule(MFER) standard for encoding waveform biosignal such as ECG, EEG and so on. And, the study converted a broad domain of clinical data on patients, including MFER, into a HL7 message, and saved them in a clinical database in hospital. According to results obtained in the test environment, it was possible to acquire the same HL7 message and biosignal data as ones acquired during transmission. Through this study, we might conclude that the proposed system can be a promising model for electronic medical record system in u-healthcare environment.
김호(Ho Kim),박해원(Hae-Won Park),이정복(Jeong-Bok Lee),석원엽(W.Y Sek),전희종(Hee-Jong Jeon) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
In this paper, an intelligent demand control system was introduced. This system is composed of demand controller, RTU, Power Line Modem and HMI program. The developed demand controller was capable of synchronizing with watthour meter recommended by KEPCO. To control distant loads, network function using powerline communication is implemented in RTU, with HMI program, the untrained users are able to operate system easily. Additionally using the Powerline, the cost and time of installation is saved. The system performance was proved in a several experiments.