scholarly journals Numerical modeling of ultrasound beam forming in elastic medium

2017 ◽  
Vol 112 ◽  
pp. 1488-1496 ◽  
Author(s):  
Katerina Beklemysheva ◽  
Alexey Vasyukov ◽  
Alexey Ermakov ◽  
Alena Favorskaya
Keyword(s):  
Numerical Modeling ◽  
Elastic Medium ◽  
Beam Forming ◽  
Ultrasound Beam

Numerical Modeling of Annular High-Current Relativistic Beam Forming in a Toroidal Chamber with a Magnet

2016 ◽  
Vol 58 (12) ◽  
pp. 1692-1701
Author(s):  
B. Yu. Bogdanovich ◽  
E. I. L’vov ◽  
A. V. Nesterovich ◽  
L. A. Sukhanova ◽  
Yu. A. Khlestkov
Keyword(s):  
Numerical Modeling ◽  
Beam Forming ◽  
High Current ◽  
Relativistic Beam ◽  
Toroidal Chamber

scholarly journals Atypical evolution of solitary wave propagating in nonlinear elastic medium

2020 ◽  
pp. 28-37
Author(s):  
J.J. Rushchitsky ◽  
◽  
V.M. Yurchuk ◽  
Keyword(s):  
Numerical Modeling ◽  
Solitary Wave ◽  
Approximate Method ◽  
Elastic Medium ◽  
Cylindrical Wave ◽  
Macdonald Function ◽  
Initial Profile ◽  
Nonlinear Elastic Medium ◽  
Nonlinear Elastic ◽  
First Three Approximations

The atypical evolution of a solitary cylindrical wave that propagates in the nonlinear elastic medium and has the initial profile in the form of the Macdonald function is described and commented. In the analysis, the approximate method of restriction on the gradient of a deformation is used, and three first approximations are taken into account. Two examples of typical wave evolution — harmoniс and bell-shaped waves — are shown and commented, where the first three approximations are also taken into account. The numerical modeling showed that the atypical initial profile (profile without a hump) evolves atypically — the profile becomes essentially steeper, saving the concavity, and the wave bottom decreases almost two times.

scholarly journals Practical Guide to Ultrasound Beam Forming: Beam Pattern and Image Reconstruction Analysis

2018 ◽  
Vol 8 (9) ◽  
pp. 1544 ◽  
Author(s):  
Libertario Demi
Keyword(s):  
Image Reconstruction ◽  
Ultrasound Imaging ◽  
Field Of View ◽  
Synthetic Aperture ◽  
Beam Forming ◽  
Imaging Features ◽  
Ultrasound Beam ◽  
Wave Imaging ◽  
Pros And Cons ◽  
Array Aperture

Starting from key ultrasound imaging features such as spatial and temporal resolution, contrast, penetration depth, array aperture, and field-of-view (FOV) size, the reader will be guided through the pros and cons of the main ultrasound beam-forming techniques. The technicalities and the rationality behind the different driving schemes and reconstruction modalities will be reviewed, highlighting the requirements for their implementation and their suitability for specific applications. Techniques such as multi-line acquisition (MLA), multi-line transmission (MLT), plane and diverging wave imaging, and synthetic aperture will be discussed, as well as more recent beam-forming modalities.

Biomedical ultrasound beam forming

1994 ◽  
Vol 20 (5) ◽  
pp. 403-428 ◽  
Author(s):  
Jian-Yu Lu ◽  
Hehong Zou ◽  
James F. Greenleaf
Keyword(s):  
Beam Forming ◽  
Ultrasound Beam
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