Prof. Yongrae Roh Profile

Prof. Yongrae Roh

Professor at Kyungpook National Univ

SPIE Involvement:

Author

Proceedings Article | 23 March 2018 Paper

Design of an accelerometer to maximize the performance of vector hydrophones

Yongrae Roh, Seonghun Pyo, Seongmin Lee

Proceedings Volume 10597, 1059707 (2018) https://doi.org/10.1117/12.2295910

KEYWORDS: Crystals, Acoustics, Finite element methods, Optimization (mathematics), Target detection, Ceramics, Spherical lenses, Structural design, Niobium, Aluminum

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Proceedings Article | 22 June 2016 Open Access

Design of a bullet beam pattern of a micro ultrasound transducer (Conference Presentation)

Yongrae Roh, Seongmin Lee

Proceedings Volume 9802, 98020V (2016) https://doi.org/10.1117/12.2219568

KEYWORDS: Transducers, Ultrasonography, Electrodes, Acoustics, Image resolution, Beam shaping, Beam controllers, Image segmentation, Beam splitters, Prototyping

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Proceedings Article | 7 May 2011 Paper

Equivalent properties of 1-3 piezocomposites made of PMN-PT single crystals for underwater sonar transducers

Jinwook Kim, Yongrae Roh

Proceedings Volume 7978, 797826 (2011) https://doi.org/10.1117/12.879610

KEYWORDS: 3D modeling, Crystals, Transducers, Finite element methods, Composites, Polymers, Dielectrics, Ceramics, Autoregressive models, Performance modeling

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Proceedings Article | 14 April 2011 Paper

Detection of cracks on a plate by piezoelectric interdigital transducers

Yongrae Roh, Junho Kim

Proceedings Volume 7981, 798110 (2011) https://doi.org/10.1117/12.880201

KEYWORDS: Sensors, Transducers, Ultrasonics, Aluminum, Wave plates, Wave propagation, Signal detection, Ferroelectric materials, Wave sensors, Statistical analysis

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Proceedings Article | 11 April 2006 Paper

Active sensing network system for crack detection on welded zone of steel truss member

Seunghee Park, Chung-Bang Yun, Yongrae Roh, Daniel Inman

Proceedings Volume 6174, 61741A (2006) https://doi.org/10.1117/12.660371

KEYWORDS: Active remote sensing, Wavelets, Sensing systems, Ferroelectric materials, Structural health monitoring, Wavelet transforms, Sensor networks, Sensors, Wave propagation, Nondestructive evaluation

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Proceedings Article | 5 April 2006 Paper

Damage detection of civil infrastructures with piezoelectric oscillator sensors

Y. R. Roh, D. Y. Kim, S. H. Park, C. B. Yun

Proceedings Volume 6174, 61740K (2006) https://doi.org/10.1117/12.658476

KEYWORDS: Sensors, Oscillators, Ferroelectric materials, Aluminum, Finite element methods, Electronic circuits, Structural health monitoring, Damage detection, Photography, Environmental sensing

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Proceedings Article | 31 March 2006 Paper

High-frequency SAW oscillator sensor to measure DNA immobilization and hybridization

Yongrae Roh, Jungyul Sakong

Proceedings Volume 6172, 61720P (2006) https://doi.org/10.1117/12.658530

KEYWORDS: Sensors, Acoustics, Oscillators, Gold, Interference (communication), Target detection, Digital signal processing, Environmental sensing, Electromagnetism, Vibration isolation

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Proceedings Article | 17 May 2005 Paper

PZT-induced Lamb waves and pattern recognitions for on-line health monitoring of jointed steel plates

Seung-Hee Park, Chung-Bang Yun, Yongrae Roh

Proceedings Volume 5765, (2005) https://doi.org/10.1117/12.598978

KEYWORDS: Pattern recognition, Wave plates, Wavelets, Wavelet transforms, Neural networks, Ferroelectric materials, Damage detection, Wave propagation, Statistical analysis, Sensors

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Proceedings Article | 16 May 2005 Paper

Development of an SH-SAW sensor for detection of DNA immobilization and hybridization

Yongrae Roh, Jeongdong Woo, Youngjune Hur, Yukeun Pak

Proceedings Volume 5763, (2005) https://doi.org/10.1117/12.597399

KEYWORDS: Sensors, Acoustics, Oscillators, Gold, Target detection, Environmental sensing, Crystals, Wave plates, Liquids, Molecules

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Proceedings Article | 29 July 2004 Paper

Impedance-based damage detection for civil infrastructures

Seunghee Park, YongRae Roh, JinHak Yi, Chung-Bang Yun, Hyo-Gyoung Kwak, SangHan Lee

Proceedings Volume 5391, (2004) https://doi.org/10.1117/12.547617

KEYWORDS: Ferroelectric materials, Transducers, Sensors, Damage detection, Structural health monitoring, Nondestructive evaluation, Bridges, Actuators, Electromagnetic coupling, Numerical analysis

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Proceedings Article | 13 August 2003 Paper

Measurement of all the elastic, piezoelectric, and dielectric properties of PMN-PT single crystals

Sang-Han Lee, Su-Sung Lee, Yongrae Roh, Ho-Yong Lee, Jin-Ho Han

Proceedings Volume 5053, (2003) https://doi.org/10.1117/12.484195

KEYWORDS: Crystals, Ferroelectric materials, Dielectrics, Ceramics, Commercial off the shelf technology, Electrodes, Statistical analysis, Sensors, Finite element methods, Mechanical engineering

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Proceedings Article | 22 July 2003 Open Access

Development of SH-SAW sensors for measurement of the properties of protein solutions

Yongrae Roh, Yongjun Kwon, Kyungho Kim, Kwangnak Koh, Jaeho Kim

Proceedings Volume 5055, (2003) https://doi.org/10.1117/12.483576

KEYWORDS: Sensors, Proteins, Oscillators, Crystals, Liquids, Environmental sensing, Acoustics, Gold, Wave propagation, Molecules

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Proceedings Article | 15 July 2002 Paper

Development of a new standing wave type ultrasonic linear motor

Yongrae Roh, Jaewha Kwon, Soosun Lee

Proceedings Volume 4701, (2002) https://doi.org/10.1117/12.474670

KEYWORDS: Teeth, Ultrasonics, Finite element methods, Wave plates, Ferroelectric materials, Ceramics, Wave propagation, Electromagnetism, Transducers, Solids

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Proceedings Article | 10 July 2002 Paper

Finite element analysis on reduction of the cross talk in ultrasonic transducers

Yongrae Roh, Youngshin Kim, Kookjin Kang

Proceedings Volume 4693, (2002) https://doi.org/10.1117/12.475217

KEYWORDS: Transducers, Ultrasonics, Semiconducting wafers, Finite element methods, Ferroelectric materials, Transmitters, Receivers, Silicon, Wave propagation, Acoustics

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Proceedings Article | 1 October 1990 Paper

Composite smart skins for airborne structures

Vasundara Varadan, Yongrae Roh, Xiao-Qi Bao, Thomas Howarth, Vijay Varadan

Proceedings Volume 1307, (1990) https://doi.org/10.1117/12.21672

KEYWORDS: Sensors, Composites, Skin, Electro optical sensors, Actuators, Control systems, Acoustics, Wave propagation, Ferroelectric polymers, Polymers

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