Joint reconstruction of initial pressure distribution and acoustic skull parameters in transcranial photoacoustic computed tomography (Conference Presentation)

2018 ◽  
Author(s):  
Joemini Poudel ◽  
Thomas P. Matthews ◽  
Mark A. Anastasio ◽  
Lihong V. Wang
Keyword(s):  
Computed Tomography ◽  
Pressure Distribution ◽  
Initial Pressure ◽  
Joint Reconstruction

scholarly journals Parameterized Joint Reconstruction of the Initial Pressure and Sound Speed Distributions for Photoacoustic Computed Tomography

2018 ◽  
Vol 11 (2) ◽  
pp. 1560-1588 ◽  
Author(s):  
Thomas P. Matthews ◽  
Joemini Poudel ◽  
Lei Li ◽  
Lihong V. Wang ◽  
Mark A. Anastasio
Keyword(s):  
Computed Tomography ◽  
Sound Speed ◽  
Initial Pressure ◽  
Joint Reconstruction

scholarly journals Feature coupling photoacoustic computed tomography for joint reconstruction of initial pressure and sound speed in vivo

2019 ◽  
Vol 10 (7) ◽  
pp. 3447 ◽  
Author(s):  
Chuangjian Cai ◽  
Xuanhao Wang ◽  
Ke Si ◽  
Jun Qian ◽  
Jianwen Luo ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Sound Speed ◽  
Initial Pressure ◽  
Joint Reconstruction

Thermoplastic Instability for the Transient Contact Problem of Two Sliding Half-Planes

1986 ◽  
Vol 53 (3) ◽  
pp. 565-572 ◽  
Author(s):  
A. Azarkhin ◽  
J. R. Barber
Keyword(s):  
Steady State ◽  
Pressure Distribution ◽  
Half Plane ◽  
Initial Pressure ◽  
Approximate Solutions ◽  
Steady State Solution ◽  
Fourier Integral ◽  
Numerical Results ◽  
Initial Size ◽  
Transient Contact

We study the time dependent problem of a nonconducting half-plane sliding on the surface of a conductor with heat generation at the interface due to friction. The conducting half-plane is slightly rounded to give a Hertzian initial pressure distribution. Relationships are established for temperature and thermoelastic displacements due to a heat input of cosine type through the surface, and then these are used to obtain the solution in the form of a double Fourier integral. Numerical results show that, if the ratio of the initial size of the area of contact to that in the steady state is less than some critical value, the area of contact and the pressure distribution change smoothly toward the steady state solution. Otherwise the area of contact goes through bifurcation. The bifurcation accelerates the process. Numerical results are compared with previous approximate solutions.

Sign in / Sign up

Export Citation Format

Share Document