Generating porosity spectrum of carbonate reservoirs using ultrasonic imaging log
Sign Up to like & getrecommendations! Published in 2018 at "Acta Geophysica"
DOI: 10.1007/s11600-018-0134-1
Abstract: Imaging logging tools can provide us the borehole wall image. The micro-resistivity imaging logging has been used to obtain borehole porosity spectrum. However, the resistivity imaging logging cannot cover the whole borehole wall. In this… read more here.
Keywords: using ultrasonic; porosity; ultrasonic imaging; spectrum ... See more keywords
Ultrasonic Imaging of the Onset and Growth of Fractures Within Partially Saturated Whitby Mudstone Using Coda Wave Decorrelation Inversion
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geophysical Research"
DOI: 10.1029/2020jb020042
Abstract: Using active ultrasonic source survey data, Coda-wave Decorrelation (CWD) time-lapse imaging during the triaxial compression of Whitby Mudstone cores provides a 3-D description of the evolution and... read more here.
Keywords: ultrasonic imaging; wave decorrelation; whitby mudstone; coda wave ... See more keywords
Porous metamaterials for deep sub-wavelength ultrasonic imaging
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5045087
Abstract: This paper reports the application of a porous medium as an aperiodic metamaterial lens for ultrasonic imaging in the context of nondestructive evaluation and non-invasive diagnostics. Experimental results are presented, demonstrating a deep sub-wavelength imaging… read more here.
Keywords: resolution; ultrasonic imaging; sub wavelength; deep sub ... See more keywords
Total-Focus Ultrasonic Imaging of Defects in Solids Using a PZT Piezoelectric Micromachined Ultrasonic Transducer Array
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2020.3032988
Abstract: This work demonstrates the ultrasonic imaging ability of piezoelectric micromachined ultrasonic transducer (PMUT) for the detection of defects deep in solids by total-focus imaging algorithm. The 3-MHz PMUT array uses thin-film PZT as the material… read more here.
Keywords: ultrasonic imaging; array; piezoelectric micromachined; focus ... See more keywords
Echo Signal Receiving and Data Conversion Integrated Circuits for Portable High-Frequency Ultrasonic Imaging System
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2022.3161293
Abstract: Ultrasonic imaging has become a very promising technology, and it has been widely applied in biomedicine, geology, and other fields due to its advantages of safety, nondamaging, and real time. Especially, the portable high-frequency (>20… read more here.
Keywords: high frequency; portable high; frequency; ultrasonic imaging ... See more keywords
Real-time co-registered photoacoustic and ultrasonic imaging for early endometrial cancer detection driven by cylindrical diffuser
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Innovative Optical Health Sciences"
DOI: 10.1142/s1793545819500020
Abstract: In illuminating tissues, a cylindrical diffuser (CD) has an advantage over regular laser sources due to its ability to illuminate a larger volume of the target tissue. This paper presents a co-registered large volume photoacoustic… read more here.
Keywords: ultrasonic imaging; imaging early; photoacoustic ultrasonic; cylindrical diffuser ... See more keywords
Ultrasonic Imaging in Layered Objects by Decomposing Spatiotemporal Signals into a Plane Wave Spectrum
Sign Up to like & getrecommendations! Published in 2020 at "Bulletin of the Russian Academy of Sciences: Physics"
DOI: 10.3103/s1062873820010268
Abstract: Abstract A phased array approach to ultrasonic imaging through a set of layers with unknown parameters is considered. The technique is based on decomposing a recorded signal into a spectrum of plane pulsed waves and… read more here.
Keywords: ultrasonic imaging; imaging layered; spectrum; objects decomposing ... See more keywords
Performance Evaluation of an Ultrasonic Imaging System Using Tissue-Mimicking Phantoms for Quality Assurance
Sign Up to like & getrecommendations! Published in 2022 at "Biomimetics"
DOI: 10.3390/biomimetics7030130
Abstract: Diagnostic ultrasound or sonography is an image that can provide valuable information for diagnosing and treating a variety of diseases and conditions. The aim of this research study is to examine the performance and accuracy… read more here.
Keywords: quality assurance; ultrasonic imaging; imaging system; performance ... See more keywords
A Survey on Analog-to-Digital Converter Integrated Circuits for Miniaturized High Resolution Ultrasonic Imaging System
Sign Up to like & getrecommendations! Published in 2022 at "Micromachines"
DOI: 10.3390/mi13010114
Abstract: As traditional ultrasonic imaging systems (UIS) are expensive, bulky, and power-consuming, miniaturized and portable UIS have been developed and widely utilized in the biomedical field. The performance of integrated circuits (ICs) in portable UIS obviously… read more here.
Keywords: miniaturized high; ultrasonic imaging; high resolution; integrated circuits ... See more keywords
Compressed Sensing Techniques Applied to Ultrasonic Imaging of Cargo Containers
Sign Up to like & getrecommendations! Published in 2017 at "Sensors"
DOI: 10.3390/s17010162
Abstract: One of the key issues in the fight against the smuggling of goods has been the development of scanners for cargo inspection. X-ray-based radiographic system scanners are the most developed sensing modality. However, they are… read more here.
Keywords: ultrasonic imaging; compressed sensing; sensing techniques; applied ultrasonic ... See more keywords
A new proposal of an ultrasonic imaging model for predicting overall and progression-free survival in patients with primary hepatocellular carcinoma.
Sign Up to like & getrecommendations! Published in 2022 at "Diagnostic and interventional radiology"
DOI: 10.5152/dir.2022.20783
Abstract: PURPOSE We aimed to develop models for predicting overall survival (OS) and progression-free survival (PFS) of patients with primary hepatocellular carcinoma (HCC). METHODS Clinicopathological characteristics and laboratory information of patients were collected. We retrospectively analyzed… read more here.
Keywords: free survival; progression free; ultrasonic imaging; primary hepatocellular ... See more keywords