-
-
Velho, Haroldo Fraga de Campos; Vilhena, Marco Túllio Menna Barreto de; Retamoso, Mario Rocha; Pazos, Ruben Edgardo Panta
(2003)
Simultaneous estimation of bioluminescence source term and boundary conditions from in situ irradiance data is presented. Inverse analysis is performed by solving a nonlinear optimization problem, where the objective ...
-
-
Rodriguez, Bárbara Denicol do Amaral; Vilhena, Marco Túllio Menna Barreto de
(2009)
Questions regarding accuracy and efficiency of deterministic transport methods are still on our mind today, even with modern supercomputers. The most versatile and widely used deterministic methods are the PN approximation, ...
-
-
Rodriguez, Bárbara Denicol do Amaral; Vilhena, Marco Túllio Menna Barreto de; Hoff, Gabriela; Bodmann, Bardo Ernst Josef
(2011)
In the present work we report on a closed-form solution for the two-dimensional Compton transport equation by the LTSN nodal method in the energy range of Compton effect. The solution is determined using the LTSN nodal ...
-
-
Retamoso, Mario Rocha; Vilhena, Marco Túllio Menna Barreto de; Velho, Haroldo Fraga de Campos; Ramos, Fernando
(2003)
A reconstruction technique for estimating boundary conditions in natural waters from in situ radiance data is presented. The inverse problem is formulated as a nonlinear constrained optimization problem. The objective ...
-
-
Rodriguez, Bárbara Denicol do Amaral; Vilhena, Marco Túllio Menna Barreto de; Borges, Volnei; Malamut, Carlos
(2007)
In this paper, we report a formulation for the exposure buildup factor by solving the one-dimensional photon transport equation in a heterogeneou slab by the LTSN method, assuming the Klein-Nishina scattering kernel as the ...
