Results 21 to 30 of about 1,733,086 (239)
Plane Wave Imaging through Interfaces
Sensors, 2021 Plane Wave Imaging (PWI) has been recently proposed for fast ultrasound inspections in the Non-Destructive-Testing (NDT) field. By using a single (or a reduced number) of plane wave emissions and parallel beamforming in reception, frame rates of hundreds
Guillermo Cosarinsky +2 more
doaj +1 more source
Factors associated with costs of hospitalization of severely mentally Ill patients [PDF]
, 2016 Background: Efforts to contain costs associated with general medical care include particular efforts for psychiatric disorders. Hospitalization represents the largest component of costs for psychiatric care and there is growing interest in balancing ...
Baldessarini, RossJ +4 more
core +1 more source
Encoded Total Focusing Method for Improving Data Acquisition Rate
Proceedings of the International Conference on Bioimaging, 2015 Synthetic aperture imaging techniques are capable to obtain high quality images, fully focused in both transmission and reception. However, these techniques require to perform so many emissions as elements in the array to acquire RF data. This requirement decreases acquisition rate and can result in tissue motion artifacts because of the phase
César Gutiérrez Fernández +2 more
openaire +1 more source
Sensors, 2019 Ultrasonic arrays have been investigated for inspecting the quality of special materials. Unfortunately, non-destructive testing and evaluation (NDT&E) of internal defects in additive manufacturing (AM) materials are difficult due to the anisotropy ...
Wentao Li, Zhenggan Zhou, Yang Li
doaj +1 more source
Applied Sciences, 2021 The quality of ultrasound images of welds is highly penalized by the dendritic structure of the material that forms during cooling. The image of a flaw is all the more degraded as a reliable description of such a medium is most of the time not possible ...
Corentin Menard +2 more
doaj +1 more source
Factors Influencing Cities' Publishing Efficiency [PDF]
, 2018 Recently, a vast number of scientific publications have been produced in cities in emerging countries. It has long been observed that the publication output of Beijing has exceeded that of any other city in the world, including such leading centres of ...
Csomos, Gyorgy
core +2 more sources
Applications of Flexible Ultrasonic Transducer Array for Defect Detection at 150 °C
Sensors, 2013 In this study, the feasibility of using a one dimensional 16-element flexible ultrasonic transducer (FUT) array for nondestructive testing at 150 °C is demonstrated.
Jiunn-Woei Liaw +5 more
doaj +1 more source
Sensors, 2021 There has been an increase in the use of ultrasonic arrays for the detection of defects in composite structures used in the aerospace industry. The response of a defect embedded in such a medium is influenced by the inherent anisotropy of the bounding ...
Chirag Anand +2 more
doaj +1 more source
The multi-layer network nature of systemic risk and its implications for the costs of financial crises [PDF]
, 2015 The inability to see and quantify systemic financial risk comes at an immense social cost. Systemic risk in the financial system arises to a large extent as a consequence of the interconnectedness of its institutions, which are linked through networks of
Martínez-Jaramillo, Serafín +4 more
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Total Focusing Method (TFM) and Phase Coherence Imaging (PCI) applied to various industrial cases
e-Journal of Nondestructive Testing, 2023 Les techniques d’imageries ultrasonores basées sur la Total Focusing Method (TFM) sont de plus en plus utilisées dans les applications industrielles.
Frederic Reverdy +2 more
doaj +3 more sources