• Proceedings of the IEEK Conference
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• 2002.06d
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• pp.267-270
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• 2002

In this paper, a new watermarking method using an iterative scheme is proposed. The proposed method consists of two parts: watermark generation and its insertion. In the watermark generation, random signals with normalized distribution N(0,1) are produced and modified using an iterative scheme. In the watermark insertion, the resulting watermark signals are inserted into selected transform coefficients with various scaling parameters in order to achieve the invisibility and robustness against illegal attacks. The simulation results show that the proposed method has good performance for various attacks including image compression, filtering, etc.

• The Transactions of the Korean Institute of Electrical Engineers
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• v.43 no.4
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• pp.564-569
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• 1994

This paper presents an expert system for the fault section estimation and fault diagnosis in power transmission systems, which also has random event generation function for the purpose of operator training or educational experiment. The expert system is developed using an artificial intelligence language.

• Proceedings of the Korean Nuclear Society Conference
• /
• 2004.10a
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• pp.671-671
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• 2004

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1994.04a
• /
• pp.741-741
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• 1994

• Communications of the Korean Institute of Information Scientists and Engineers
• /
• v.31 no.5
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• pp.40-45
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• 2013

• Communications of the Korean Institute of Information Scientists and Engineers
• /
• v.31 no.7
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• pp.16-25
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• 2013

• Journal of Drive and Control
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• v.6 no.2
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• pp.10-16
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• 2009

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2000.06a
• /
• pp.11-15
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• 2000

• Proceedings of the Materials Research Society of Korea Conference
• /
• 1998.08a
• /
• pp.59.3-59
• /
• 1998

• Journal of Power Electronics
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• v.12 no.1
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• pp.19-23
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• 2012

This paper presents a practical methodology for realistic simulation on reverse characteristics of Wide Bandgap (WBG) SiC and GaN p-n junctions. The adjustment on certain physic-based model parameters, such as the trap density and photo-generation for SiC junction, and impact ionization coefficients and critical field for GaN junction are described. The adjusted parameters were used in Synopsys Medici simulation to obtain a realistic p-n junction avalanche breakdown voltage. The simulation results were verified through benchmarking against independent data reported by others.