23 citations · 44 across the 14 of their papers we have counts for
14 papers
Trapped air metamaterials for ultrasonic sub-wavelength imaging in water
Stefano Laureti, David A. Hutchins, Lorenzo Astolfi +8
Acoustic metamaterials constructed from conventional base materials can exhibit exotic phenomena such as negative refractive index, extraordinary transmission-absorption and sub-wa…
Coupling of Wideband Impulses Generated by Granular Chains into Liquids
S. Harput, S. Freear, P. Gelat +5
An ultrasonic transducer technology to generate wideband impulses using a one-dimensional chain of spheres was previously presented. The Hertzian contact between the spheres causes…
Simultaneous Acoustic Trapping and Imaging of Microbubbles at Clinically Relevant Flow Rates
S. Harput, L. Nie, D. M. J. Cowell +4
Mechanisms for non-invasive target drug delivery using microbubbles and ultrasound have attracted growing interest. Microbubbles can be loaded with a therapeutic payload and tracke…
Wideband Excitation of Microbubbles with Chirps to Maximize the Sonoporation Efficiency and Contrast in Ultrasound Imaging
Sevan Harput, James McLaughlan, David M. J. Cowell +1
The importance of the excitation bandwidth is well known in diagnostic ultrasound imaging. However, the effect of excitation bandwidth in therapeutic applications of microbubbles h…
On the -/Gamma Generalized Multipath/ Shadowing Fading Distribution
Paschalis C. Sofotasios, Steven Freear
This work is devoted to the formulation and derivation of the /gamma distribution which corresponds to A physical fading model. This distribution is composite and is based on…
Tight Approximations for the Two Dimensional Gaussian function
Paschalis C. Sofotasios, Steven Freear
The aim of this work is the derivation of two approximated expressions for the two dimensional Gaussian Q-function, . These expressions are highly accurate and are expres…