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Publications


We present our work at international conferences and proceedings.  The following are brief abstracts of these publications that you can download or view in your browser as Adobe® PDF files.
 

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Non Contact Ultrasound: A Paradigm Shift in our Perception & Applications of this Wave

Materials characterization, Non-Destructive testing and ultrasound, Limitations of conventional contact ultrasound and possibilities without contact, Realities that impede Non-Contact Ultrasound ... 		  Download PDF

High Efficiency Non-Contact Transducers and a Very High Coupling Piezoelectric Composite

Despite the usefulness of ultrasound for materials analysis, this age-old method has been stifled by direct or indirect transducer contact to the test media, generally by liquids. Consequently... 		  Download PDF

Non-Contact Ultrasonic Characterization of In-Plane Density Variation in Oriented Strandboard

In-plane density variations exist in oriented strandboards (OSB) due to random flake deposition in mat forming. The integrity of structural performance of the board in service depends on the degree of homogeneity of its horizontal density... 		  Download PDF

Non-Contact Ultrasonic Characterization of Hot Mix Asphalt (HMA)

In this study, non-contact ultrasound technology is successfully utilized to characterize hot mix asphalt (HMA) used in roadway construction. HMA is a heterogeneous mixture of asphalt binder, stone aggregates, fines (sand) and mineral additives. Specifications require that HMA have 3% to 5% air voids by volume... 		  Download PDF

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