Mr. Jones Owusu Twumasi Profile

Jones Owusu Twumasi

Graduate research assistant at Univ of Massachusetts Lowell

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Publications (10)

Proceedings Article | 27 March 2018 Presentation + Paper

Characterization of steel rebar spacing using synthetic aperture radar imaging

Jie Hu, Qixiang Tang, Jones Owusu Twumasi, Tzuyang Yu

Proceedings Volume 10599, 1059915 (2018) https://doi.org/10.1117/12.2295627

KEYWORDS: Synthetic aperture radar, Nondestructive evaluation, Radar imaging

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Proceedings Article | 27 March 2018 Presentation + Paper

Real time corrosion detection of rebar using embeddable fiber optic ultrasound sensor

Cong Du, Jones Owusu Twumasi, Qixiang Tang, Nan Wu, Tzuyang Yu, Xingwei Wang

Proceedings Volume 10598, 1059833 (2018) https://doi.org/10.1117/12.2302901

KEYWORDS: Corrosion, Ultrasonography, Fiber optics sensors, Fiber optics, Sensors, Ultrasonics, Fiber Bragg gratings, Photoacoustic spectroscopy, Reflectivity, Acoustics

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Proceedings Article | 27 March 2018 Presentation + Paper

Electromagnetic characterization of white spruce at different moisture contents using synthetic aperture radar imaging

Christopher Ingemi, Jones Owusu Twumasi , Tzuyang Yu

Proceedings Volume 10599, 1059917 (2018) https://doi.org/10.1117/12.2296343

KEYWORDS: Synthetic aperture radar, Autoregressive models, Dielectrics, Radar imaging, Radar, Data modeling, Nondestructive evaluation, Electromagnetism, Signal attenuation, Amplifiers

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Proceedings Article | 27 March 2018 Presentation + Paper

Finite element simulation of photoacoustic fiber optic sensors for surface corrosion detection on a steel rod

Qixiang Tang, Jones Owusu Twumasi, Jie Hu, Xingwei Wang, Tzuyang Yu

Proceedings Volume 10599, 105991N (2018) https://doi.org/10.1117/12.2295032

KEYWORDS: Ultrasonics, Wave propagation, Algorithm development, Finite element methods, Detection and tracking algorithms, Receivers, Error analysis, Photoacoustic spectroscopy, Transmitters, Optical components

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Proceedings Article | 19 April 2017 Presentation + Paper

Condition assessment of corroded steel rebar in free space using synthetic aperture radar images

Christopher Ingemi, Jones Owusu Twumasi, Swinderjit Litt, Tzuyang Yu

Proceedings Volume 10169, 101691F (2017) https://doi.org/10.1117/12.2258658

KEYWORDS: Inspection, Data modeling, Nondestructive evaluation, General packet radio service, Synthetic aperture radar, Corrosion, Free space, Radar imaging, Civil engineering, Radar, Roads, Environmental monitoring, Technologies and applications

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Proceedings Article | 3 May 2016 Paper

Roadside IED detection using subsurface imaging radar and rotary UAV

Yexian Qin, Jones Twumasi, Viet Le, Yu-Jiun Ren, C. P. Lai, Tzuyang Yu

Proceedings Volume 9823, 982317 (2016) https://doi.org/10.1117/12.2223445

KEYWORDS: Unmanned aerial vehicles, Radar, Radar imaging, Improvised explosive device detection, Synthetic aperture radar, Improvised explosive devices, Antennas, Imaging systems, Prototyping, Calibration

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Proceedings Article | 8 April 2016 Presentation + Paper

Ultrasonic transmission from fiber optic generators on steel plate

Siwen Bi, Nan Wu, Jingcheng Zhou, Qixiang Tang, Jones OwusuTwumasi, Tzuyang Yu, Xingwei Wang

Proceedings Volume 9804, 98040Q (2016) https://doi.org/10.1117/12.2219205

KEYWORDS: Ultrasonics, Fiber optics, Acoustics, Composites, Gold, Energy efficiency, Thermography, Optical fibers, Nanocomposites, Photoacoustic spectroscopy, Ultrasonography, Structured optical fibers, Structural health monitoring, Signal attenuation

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Proceedings Article | 8 April 2016 Presentation + Paper

Sizing and ranging criteria for SAR images of steel and wood specimens

Viet Le, Tzuyang Yu, Jones Owusu Twumasi, Qixiang Tang

Proceedings Volume 9804, 980404 (2016) https://doi.org/10.1117/12.2218441

KEYWORDS: Synthetic aperture radar, Radar, Signal attenuation, Radar imaging, Ranging, Microwave radiation, Sensors, Imaging systems, Nondestructive evaluation, Optical sensors, Antennas, Dielectrics, 3D modeling

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Proceedings Article | 8 April 2016 Presentation + Paper

Quantitative sensing of corroded steel rebar embedded in cement mortar specimens using ultrasonic testing

Jones Owusu Twumasi, Viet Le, Qixiang Tang, Tzuyang Yu

Proceedings Volume 9804, 98040P (2016) https://doi.org/10.1117/12.2218451

KEYWORDS: Corrosion, Ultrasonics, Cements, Polarization, Resistance, Sodium, Transducers, Velocity measurements, Curium, Wave propagation, Performance modeling, Nondestructive evaluation, Oxygen

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Proceedings Article | 1 April 2015 Paper

Forward and inverse dielectric modeling of oven-dried cement paste specimens in the frequency range of 1.02 GHz to 4.50 GHz

Jones Owusu Twumasi, Tzuyang Yu

Proceedings Volume 9437, 943724 (2015) https://doi.org/10.1117/12.2075672

KEYWORDS: Dielectrics, Cements, Data modeling, Radar, Nondestructive evaluation, Performance modeling, Signal attenuation, Inspection, Systems modeling, Microwave radiation

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Showing 5 of 10 publications

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