scholarly journals Study of hysteretic thermoelectric behavior in photovoltaic materials using the finite element method, extended thermodynamics and inverse problems

2013 ◽  
Vol 65 ◽  
pp. 557-563 ◽  
Author(s):  
R. Palma ◽  
J.L. Pérez-Aparicio ◽  
R. Bravo
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Inverse Problems ◽  
Extended Thermodynamics ◽  
The Finite Element Method ◽  
Photovoltaic Materials ◽  
Element Method

Calculation of the gradient of Tikhonov’s functional in solving coefficient inverse problems for linear partial differential equations

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Alexander S. Leonov ◽  
Alexander N. Sharov ◽  
Anatoly G. Yagola
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Partial Differential Equations ◽  
Inverse Problems ◽  
Differential Equations ◽  
Differential Operators ◽  
The Finite Element Method ◽  
Partial Differential ◽  
Linear Partial Differential Equations ◽  
Element Method

Abstract A fast algorithm for calculating the gradient of the Tikhonov functional is proposed for solving inverse coefficient problems for linear partial differential equations of a general form by the regularization method. The algorithm is designed for problems with discretized differential operators that linearly depend on the desired coefficients. When discretizing the problem and calculating the gradient, it is possible to use the finite element method. As an illustration, we consider the solution of two inverse problems of elastography using the finite element method: finding the distribution of Young’s modulus in biological tissue from data on its compression and a similar problem of determining the characteristics of local oncological inclusions, which have a special parametric form.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

Contact modelling by the finite element method : Application to the piezoelectric motor

1999 ◽  
Vol 09 (PR9) ◽  
pp. Pr9-217-Pr9-226
Author(s):  
H. Ouazzani Touhami ◽  
J. C. Debus ◽  
L. Buchaillot
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Piezoelectric Motor ◽  
The Finite Element Method ◽  
Contact Modelling ◽  
Element Method
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