• IE interfaces
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• v.4 no.2
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• pp.35-42
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• 1991

Many authors derived MTTF/MTBF for an operating system by analyzing its actual life time data. However, it is difficult to derive MTTF/MTBF when few breakdowns accur throughout a year. In this paper, we address a new approach to solve that problem under a preventive maintenance policy, in which few breakdowns occur, and also introduce a case study using the results obtained.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.87-88
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• 2015

본 논문에서는 제주풍력단지에 대한 측정 데이터(measured wind power outputs)를 기반으로 Fast Fourier Transform(FFT)을 실시하고, 이를 이용하여 각 풍력발전단지의 주파수 특성에 대해 분석해보고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2000.10b
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• pp.129-134
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• 2000

In this paper, we proposed a simulator for reconstructing and analyzing vessel collision accidents happened at sea and we verified validity of the system by applying it to some collision accidents. This system will offer us to advantage of time and human power by contributing to automation of judge's decision.

• Journal of Astronomy and Space Sciences
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• v.13 no.2
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• pp.67-81
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• 1996

The attitude dynamics of KITSAT-1 are modeled including the gravity gradient stabilization method. We define the operation scenario during the initial attitude stabilization period by means of a magnetorquering control algorithm. The required constraints for the gravity gradient boom deployment are also examined. Attitude dynamics model and control laws are verified by analyzing in-orbit attitude sensor telemetry data.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.06a
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• pp.315-316
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• 2007

• The Journal of Korean Medical History
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• v.14 no.2
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• pp.3-24
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• 2001

More correlations are expected to be formed by comparing and analyzing three medical prescription texts, "Hyangyakjipseongbang", "Euirimchyalyo" and "Dongeuibogam". And to firmly systemize the medicine native to Korea, more studies should be done on it, added to comparatively studies of native medical prescription texts.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2009.06a
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• pp.367-368
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• 2009

• Journal of the Korean Statistical Society
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• v.9 no.1
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• pp.79-94
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• 1980

This paper illustrates the application of the Box-Jenkins techniques for analyzing the monthly data of money supply from January 196 to December 1977 of Korea.

• 전기의세계
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• v.24 no.5
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• pp.21-30
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• 1975

These studies aim to support technically the National Rural Electrification Program now in progress by analyzing several engineering problems in regard to the program and then suggesting some appropriate solutions or measures. The contents of these studies are divided into three categories; (1)optimized distribution systems for the rural electrification, (2)optimized rural illumination and (3)single-phase operation of three-phase motors.

• Proceedings of the Korean Nuclear Society Conference
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• 2002.05a
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• pp.86-86
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• 2002