• Proceedings of the KSR Conference
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• 2007.05a
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• pp.846-851
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• 2007

The contact and messenger wire is important parts in the electric power system of the railroad. There are so many measurement method like voltage, current, scratch of surface, and glow longer of length. In this paper suggest real time monitering system of messenger wire so called RTU (Remote Terminal Unit) and this system includes CDMA module to transfer real time or saved data of memory to the end user directly who is in the long distance. The hyper terminal program of windows shows the downloaded data from RTU through CDMA communication and this data can be transferred to excel sheet easily.

• Communications for Statistical Applications and Methods
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• v.13 no.1
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• pp.73-88
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• 2006

In this paper, we construct data-base for fetal heart rate (FHR) data and develop the FHR Monitering system to diagnose fetus, HYFM-III. For diagnostic system, a few statistical decision making mechanism are adopted, such as approximate entropy, neural networks, and logistic discrimination. Since FHR data is very chaotic, we mostly adopt nonlinear statistical methods. On the basis of this system, we expect to develop expert system for early detection of abnormal fetus.

• Journal of The Korean Society of Agricultural Engineers
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• v.53 no.1
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• pp.57-62
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• 2011

Block Grants System to the agriculture sector has been started from 2010. This paper has been studied for the effective Integrated Rural Development under Block Grants System. For this, project evaluation items and indicators (PEI) were studied by internal and external example and specialist questionnaire on project evaluation. As the result of study, necessity of project, faith of project, efficiency of project, utilization of resources and operating capability were established in planning step, and most important PEI was established the necessity of project. And in enforcement step, performance result, monitering, capability, achievement and maintenance were established, and most important PEI was established performance results. Finally, monitering, capability, achievement and maintenance were established in completion step.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2007.06a
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• pp.476-477
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• 2007

The development of real-time monitoring technology provides reliable, timely information of railway maintenance and play a important role in determining the conditions of railway electrification system. Image motoring and wireless communication systems are currently used as remote transducer for real-time monitering. In this paper, we describe a real-time monitoring technology of railway electrification system based on the concept of high-voltage application, using the image processing and telemetry system methodology. the system and its performance for especially with regard to real-time monitering and railway electrification maintenance.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1227-1230
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• 2008

This paper reports on measurement method for the fiber optic strain monitoring of overhead contact line systems of trains. We used fiber Bragg grating (FBG) sensors to measure the strain variation of overhead contact line. FBG sensors were attached on the contact line and connected to the monitering system with optical fibers. The monitering system with FBG sensors showed very good sensitivity to measuring strain variation and this system could be applied to the overhead contact line of KTX.

• Magazine of the Korea Concrete Institute
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• v.19 no.1
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• pp.44-55
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• 2007

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.06a
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• pp.393-394
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• 2007

• Proceedings of the KGS Conference
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• 2004.11a
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• pp.38-38
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• 2004

• 한국도로학회:학술대회논문집
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• 2008.10a
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• pp.479-484
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• 2008

• Review of Korean Society for Internet Information
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• v.13 no.1
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• pp.56-61
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• 2012