Exponential-Reproducing-Kernel-Based Sparse Sampling Method for Finite Rate of Innovation Signal with Arbitrary Pulse Echo Position
Sign Up to like & getrecommendations! Published in 2019 at "Circuits, Systems, and Signal Processing"
DOI: 10.1007/s00034-018-0903-8
Abstract: AbstractAn exponential reproducing kernel (ERK) has been applied to data sparse sampling for finite rate of innovation (FRI) signals with the characteristic of flexible parameter setting in contrast to other sampling kernels. However, the signal… read more here.
Keywords: sparse sampling; pulse echo; reproducing kernel; exponential reproducing ... See more keywords
Pulse-echo ultrasound method for detection of post-menopausal women with osteoporotic BMD
Sign Up to like & getrecommendations! Published in 2018 at "Osteoporosis International"
DOI: 10.1007/s00198-018-4408-x
Abstract: SummaryWe lack effective diagnostics of osteoporosis at the primary health care level. An ultrasound device was used to identify subjects in the osteoporotic range as defined by DXA. A case finding strategy combining ultrasound results… read more here.
Keywords: pulse echo; ultrasound method; bmd; echo ultrasound ... See more keywords
Influence of permanent magnet stirring on dendrite morphological and elastic properties of a novel Sn–Ag–Cu–Sb–Al solder alloy by ultrasonic pulse echo method
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-020-03506-4
Abstract: Preventing columnar β-Sn grains forming during manufacture have undoubtedly become major challenges. Columnar grains are commonly considered as unfavorable as their existence can relocate defects of solidification and deterioration in mechanical properties; however, the practical… read more here.
Keywords: solder alloy; pms; alloy; pulse echo ... See more keywords
Three dimensional evaluation of aluminum plates with wall-thinning by full-field pulse-echo laser ultrasound
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2016.08.010
Abstract: Abstract We propose a full-field pulse-echo laser ultrasonic wave propagation imager (FF-PE-UPI) for the evaluation of structural defects. The FF-PE-UPI consists of a Q-switched laser for the generation of thermoelastic waves, a laser Doppler vibrometer… read more here.
Keywords: pulse echo; laser; field pulse; full field ... See more keywords
Improved forward model for quantitative pulse-echo speed-of-sound imaging.
Sign Up to like & getrecommendations! Published in 2020 at "Ultrasonics"
DOI: 10.1016/j.ultras.2020.106168
Abstract: Computed ultrasound tomography in echo mode (CUTE) allows determining the spatial distribution of speed-of-sound (SoS) inside tissue using handheld pulse-echo ultrasound (US). This technique is based on measuring the changing phase of beamformed echoes obtained… read more here.
Keywords: speed sound; forward model; pulse echo; phase shift ... See more keywords
Toward Speed-of-Sound Anisotropy Quantification in Muscle With Pulse-Echo Ultrasound
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2022.3189184
Abstract: The velocity of ultrasound longitudinal waves (speed of sound) is emerging as a valuable biomarker for a wide range of diseases, including musculoskeletal disorders. Muscles are fiber-rich tissues that exhibit anisotropic behavior, meaning that velocities… read more here.
Keywords: sound anisotropy; speed sound; echo ultrasound; muscle ... See more keywords
Fast compressive pulse-echo ultrasound imaging using random incident sound fields
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4987735
Abstract: In fast pulse-echo ultrasound imaging (UI), the image quality is traded off against the image acquisition rate by reducing the number of sequential wave emissions per image. To alleviate this tradeoff, the concept of compressed… read more here.
Keywords: pulse echo; image; sound fields; sound ... See more keywords
Effect of microannulus on ultrasonic pulse-echo resonance, flexural, and extensional Lamb-wave cement-evaluation measurements
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.4988511
Abstract: Subterranean wells are usually constructed by cementing steel tubes, called casings, inside the borehole. The cement quality is typically verified through ultrasonic measurements deployed from inside the casing. Environmental effects such as cement shrinkage or… read more here.
Keywords: pulse echo; echo resonance; ultrasonic pulse; cement ... See more keywords
An ultrafast broadband digital signal processing approach to pulse echo measurements
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Acoustical Society of America"
DOI: 10.1121/1.5036443
Abstract: Pulse-Echo (PE) measurements are commonly used to determine the sound velocity in a sample of known length. In PE measurements, the interface between the transducer and buffer rod, and that between the buffer rod and… read more here.
Keywords: pulse echo; ultrafast broadband; echo measurements; signal ... See more keywords
Ferroelectret Ultrasonic Transducers for Pulse-Echo Water Immersion
Sign Up to like & getrecommendations! Published in 2020 at "Applied Sciences"
DOI: 10.3390/app10248771
Abstract: Ferroelectrets are thin and porous polymeric films with a cellular microstructure, high porosity, permanent polarization and piezoelectric response. They have been used for different applications, where one of the most interesting ones is for the… read more here.
Keywords: water immersion; pulse echo; ultrasonic transducers; ferroelectret ultrasonic ... See more keywords