• Transactions on Electrical and Electronic Materials
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• v.5 no.2
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• pp.41-49
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• 2004

Layer transfer process has emerged as a promising tool in the field of thin silicon solar cell technology. This process can use mono-crystalline silicon as a surface for the epitaxial growth of a thin layer of silicon. It requires some sort of surface conditioning of the substrate due to which the surface become suitable for homo-epitaxy and lift off after solar cell fabrication. The successful reuse of substrate has been reported. The use of the conditioned surface without any kind of epitaxial layer growth is also the issue to be addressed. This review paper basically describes the five most cost effective methods on which works are in progress. Several types of possible problems envisaged by different research groups are also incorporated here with necessary discussion. Work in Korea has already started in this area in collaboration IC Design and Fabrication Centre, Jadavpur University, India and that also has been mentioned.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.05a
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• pp.337-340
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• 2009

Wireless tele-home-care application gives new possibilities for ECG (electrocardiogram) monitoring system with wearable biomedical sensors. Thus, continuously development of high convenient ECG monitoring system for high-risk cardiac patients is essential. This paper describes to monitor a person's ECG using wearable approach. A wearable belt-type ECG electrode with integrated electronics has been developed and has proven long-term robustness and monitoring of all electrical components. The measured ECG signal is transmitted via an ultra low power consumption wireless sensor node. ECG signals carry a lot clinical information for a cardiologist especially the R-peak detection in ECG. R-peak detection generally uses the threshold value which is fixed thus it bring errors due to motion artifacts and signal size changes. Variable threshold method is used to detect the R-peak which is more accurate and efficient. In order to evaluate the performance analysis, R-peak detection using MIT-BIH databases and Long Term Real-Time ECG is performed in this research. This concept able to allow patient to follow up critical patients from their home and early detecting rarely occurrences of cardiac arrhythmia.

• Journal of Institute of Control, Robotics and Systems
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• v.22 no.8
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• pp.585-589
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• 2016

Recently, the robotic assist system for cardiovascular intervention gets continuously growing interest. The robotic cardiovascular intervention systems are largely two folds, systems for cardiac ablation procedure assist and systems for vascular intervention assist. For the systems, the clinician controls the catheter inserted through blood vessel to the heart via a master console or master manipulator. Most of the current master manipulators have structure of joystick-like pivoting 2 degree of freedom (DOF) handle in the core, which is used in parallel with other sliding switches and input devices. It however is desirable to have customized and optimized design manipulator that can provide clinician with intuitive control of the catheter motion fully utilizing the advantage of the use of robotic structure. A 6 DOF kinematic mechanism that can capture the motion control intention of the clinician in translational 3 DOF and rotational 3 DOF is proposed in this paper. Also, a master-slave motion relationship specially designed for the cardiac catheter manipulation motion is proposed and implemented in an experimental prototype. Design revision for implementation of more efficient motion and experiment in combination with an experimental slave robot system for catheter manipulation are underway.

• Korean Journal of Oriental Medicine
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• v.13 no.1 s.19
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• pp.115-124
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• 2007

Objectives : The study investigated the actual condition of the class for Qi-gong gymnastics among health promotion service programs using oriental medicines, which the public health center has been conducting for local residents. Method : Of a total of 964 oriental medical physician in public health center across the country, it examined 27 places consisting of public health centers and public health sub-centers, and public hospitals, all of which were running the class for Qi-gong gymnastics. Then, it carried out the tele research of those oriental medical physicians in charge of the class there. Result : As a result, area that is enforcing the Class for Qi-gong Gymnastics was expose each attempt that difference is particularly, and appeared by thing which form and practice law that operate the classroom are various. Also, in many cases, the oriental medical physicians instructed the gymnastics directly instead of inviting an external lecturer. Conclusions : In conclusion, based on the contents surveyed, by making the well-organized system of the class for Qi-gong excercise; by developing the common excercise and texts; and by publicizing and educating the oriental medical physicians engaged in public health, that the Class for Qi-gong Gymnastics is real in health promotion of local residents.

• Journal of the Society of Disaster Information
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• v.12 no.2
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• pp.181-188
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• 2016

Database construction of basic elements for displaying CCTV informations(the location, direction, distance, maximum distance, Tele mode angle view, Wide mode angle view, etc.) is conducted by complete survey about CCTV information in model area. Automatic mapping algorithm is suggested to schematize and visualize it on the basic of the investigated CCTV informations. In the result, the CCTV locations in partial areas are duplicated on about 11 percents. Duplicated ones among twelve CCTVs are total five. If the redesign of CCTV location and direction by displaying the CCTV informations based on the suggested algorithm is performed, it can be used as scientific explanations.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2008.10a
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• pp.192-193
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• 2008

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2007.10a
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• pp.224-225
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• 2007

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2007.10a
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• pp.427-428
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• 2007

• Electronics and Telecommunications Trends
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• v.20 no.6 s.96
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• pp.122-131
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• 2005

TMForum에서는 서비스 공급자 및 네트워크 운용자로 하여금 비즈니스 프로세스를자동화 할 수 있도록 하는 솔루션을 제공하여 비용 및 시간 절감 효과를 가져오기 위한 지속적인 활동을 수행하고 있으며, 비즈니스 프로세스 운용을 위한 시스템적인 지원뿐만 아니라 구조적 아키텍처를 수립하기 위해 NGOSS, ETOM, SLAM 등의 다양한 기술적인 활동이 진행되고 있다. 본 고에서는 TMForum의 활동목적과 주요 프로그램 활동 사항을 살펴보기로 한다

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.1097-1100
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• 2003

Data Loggers for environmental monitoring are mostly dispersion in installation and systems located at long distance from monitoring system. And, it requests mostly flexible functions and high performances. that can fit to various sensor inputs, sensor interfaces and conditions or system working. In this research, we developed the micro controller based Data Logger with minimum hardware construction that allows the higher flexibility of application. Finally, we developed software function for water quality monitoring and tested in real system launched at Han river.