Dr. David T. Ma Profile

Dr. David T. Ma

Assistant Professor at Univ of Hawaii

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Publications (11)

Proceedings Article | 3 April 2015 Paper

Recovering bridge deflections from collocated acceleration and strain measurements

M. Bell, David Ma, N. S. Xu

Proceedings Volume 9435, 94350B (2015) https://doi.org/10.1117/12.2082988

KEYWORDS: Bridges, Filtering (signal processing), Error analysis, Electronic filtering, Sensors, Numerical simulations, Shape analysis, Lithium, Environmental sensing, Civil engineering

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Proceedings Article | 27 March 2015 Paper

New insights into vibration-based energy harvesting

H. Zhang, T. Ma, N. S. Xu

Proceedings Volume 9435, 943504 (2015) https://doi.org/10.1117/12.2082600

KEYWORDS: Palladium, Complex systems, Energy harvesting, Superposition, Energy efficiency, Oscillators, Chaos, Signal processing, Telecommunications, Dynamical systems

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Proceedings Article | 8 April 2008 Paper

Numerical and experimental study of a three-axis optical tactile sensing system

Jiamin Liu, Qi Yang, Tianwei Ma, Yingjun Pan

Proceedings Volume 6932, 69321B (2008) https://doi.org/10.1117/12.775391

KEYWORDS: Waveguides, Planar waveguides, Sensing systems, Finite element methods, Silicon, 3D modeling, Sensors, Refractive index, Geometrical optics, Light sources

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Proceedings Article | 26 April 2007 Paper

Significance evaluation of geometric features in classification of chinese facial images

Jiamin Liu, Yijun Lan, Ying Zhou, Tianwei Ma, Yingjun Pan, Weiguo Gong

Proceedings Volume 6531, 653115 (2007) https://doi.org/10.1117/12.714225

KEYWORDS: Facial recognition systems, Databases, Photography, Image classification, Biometrics, Cameras, Mahalanobis distance, Optoelectronics, Machine vision, Computer vision technology

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Proceedings Article | 18 April 2007 Paper

Measuring three-axis force with four-part tactile sensing techniques

Jiamin Liu, Xingjun Mo, Jiang Wang, Tianwei Ma, Yingjun Pan

Proceedings Volume 6529, 652932 (2007) https://doi.org/10.1117/12.714220

KEYWORDS: Sensors, Sensing systems, Ferroelectric polymers, Head, Capacitance, Optical design, Reliability, Robots, Silicon, Waveguides

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Proceedings Article | 18 April 2007 Paper

A MEMS vibration sensor based on Mach Zehnder interferometers

Tianwei Ma, Wenbin Zhao, Jiamin Liu

Proceedings Volume 6529, 65292C (2007) https://doi.org/10.1117/12.715780

KEYWORDS: Sensors, Beam propagation method, Refractive index, Brain-machine interfaces, Finite element methods, Microelectromechanical systems, Waveguides, Geometrical optics, Integrated optics

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Proceedings Article | 10 April 2007 Paper

Developing hybrid structural health monitoring via integrated global sensing and local infrared imaging

Xiaoyan Han, Qi He, Nebojsa Sebastijanovic, Tianwei Ma, Henry Yang

Proceedings Volume 6529, 65291E (2007) https://doi.org/10.1117/12.716814

KEYWORDS: Infrared imaging, Structural health monitoring, Sensors, Damage detection, Algorithm development, Infrared cameras, Defect detection, Imaging systems, Sensing systems, Thermography

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Proceedings Article | 10 April 2007 Paper

Continuous time parameter estimation of multi-story buildings

David Ma, Ning-Shou Xu

Proceedings Volume 6529, 65291V (2007) https://doi.org/10.1117/12.715326

KEYWORDS: Filtering (signal processing), Buildings, Linear filtering, Electronic filtering, Systems modeling, Numerical simulations, Finite element methods, Damage detection, System identification, Structural health monitoring

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Proceedings Article | 11 April 2006 Paper

Structural damage detection and assessment using acceleration feedback

Nebojsa Sebastijanovic, Tianwei Ma, Henry T. Yang

Proceedings Volume 6174, 61742L (2006) https://doi.org/10.1117/12.659121

KEYWORDS: Velocity measurements, Damage detection, Structural health monitoring, Earthquakes, Feedback control, Neodymium, Vibrometry, Nondestructive evaluation, Sensors, Electroluminescence

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Proceedings Article | 17 May 2005 Paper

An eigenvector orientation approach for detection and control of panel flutter

Nebojsa Sebastijanovic, Tianwei Ma, Anthony DiCarlo, Henry Yang

Proceedings Volume 5764, (2005) https://doi.org/10.1117/12.600612

KEYWORDS: Aerodynamics, Actuators, Lead, Composites, Finite element methods, Vibration control, Control systems, Feedback control, Chemical elements, Smart structures

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Proceedings Article | 21 July 2004 Paper

Direct damage diagnosis of structural component using vibration response

Tian-Wei Ma, Henry Yang, Chih-Chen Chang

Proceedings Volume 5394, (2004) https://doi.org/10.1117/12.539676

KEYWORDS: Structural health monitoring, System identification, Structural dynamics, Earthquakes, Matrices, Actuators, Signal processing, Time metrology, Damage detection, Inspection

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Showing 5 of 11 publications

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