Results 31 to 40 of about 3,633,330 (258)
The ultrafast ultrasonic imaging technology based on the transmitting/receiving principle of plane wave has become a research hotspot in the ultrasonic field of international medicine.
Guoa Ning +3 more
doaj +1 more source
Gaussian Beam Migration for Free-Surface Multiples in VSP
The vertical seismic profiling (VSP) Gaussian beam migration is a seismic imaging method with both computational efficiency and imaging precision. It can get high-resolution structural features near the well.
Dai Yu +5 more
doaj +1 more source
Deep tissue space-gated microscopy via acousto-optic interaction
In ideal diffraction-limited optical microscopy imaging depth is limited by the multiply scattered wave. Here, the authors present a space gating method, based on an acoustic focus in the object plane and reconstruction using only the acousto-optically ...
Mooseok Jang +5 more
doaj +1 more source
Full-Field Super-Resolution Terahertz Imaging Based on Rotating Coherent Scattering Microscopy
For decades, terahertz (THz) microscopic imaging has been limited by the resolution of the system due to the larger wavelength, the power of the source, and the equivalent noise power of the detector, so a lot of research has focused on single-point ...
Duoxuan Ma +6 more
doaj +1 more source
Nonlinear X-Wave Ultrasound Imaging of Acoustic Biomolecules
The basic physics of sound waves enables ultrasound to visualize biological tissues with high spatial and temporal resolution. Recently, this capability was enhanced with the development of acoustic biomolecules—proteins with physical properties enabling
David Maresca +4 more
doaj +1 more source
Stiffness pulsation of the human brain detected by non-invasive time-harmonic elastography
Introduction: Cerebral pulsation is a vital aspect of cerebral hemodynamics. Changes in arterial pressure in response to cardiac pulsation cause cerebral pulsation, which is related to cerebrovascular compliance and cerebral blood perfusion ...
Tom Meyer +9 more
doaj +1 more source
Simultaneous Coded Plane-Wave Imaging Using an Advanced Ultrasound Forward Model
In the quest for higher acquisition rates of ultrasound images, the simultaneous emission of encoded waves has the potential to overcome the trade-off between acquisition time and image quality.
Frank Nicolet +5 more
doaj +1 more source
Ultrafast acousto-optic imaging with ultrasonic plane waves
Due to multiple light scattering inside biological tissues, deep non-invasive optical medical imaging is very challenging. Acousto-optic imaging is a technique coupling ultrasound and light that allows recovering optical contrast at depths of few centimeters with a millimeter resolution.
Laudereau, Jean-Baptiste +4 more
openaire +3 more sources
Neptune Wave Power, LLC (‘NWP’), worked with OWET, the Northwest National Marine Renewable Energy Center (‘NNMREC’) and Oregon State University (O.H. Hinsdale Wave Research Laboratory) to build and test a 1/10 scale model wave energy conversion (‘WEC ...
Neptune Wave Power LLC +1 more
core +6 more sources
Improving plane wave ultrasound imaging through real-time beamformation across multiple arrays
Ultrasound imaging is a widely used diagnostic tool but has limitations in the imaging of deep lesions or obese patients where the large depth to aperture size ratio (f-number) reduces image quality.
Josquin Foiret +5 more
doaj +1 more source

