Zobrazeno 1 - 10
of 124
pro vyhledávání: '"M. L. Santos"'
Autor:
M. L. Santos, A. O. Florentino, M. J. Saeki, A. H. Aparecida, M. V. Lia Fook, A. C. Guastaldi
Publikováno v:
Eclética Química, Vol 30, Iss 3, Pp 29-35 (2018)
A hidroxiapatita [Ca 10 (PO 4 ) 6 (OH) 2 , HA] foi sintetizada utilizando-se a rota sol-gel partindo-se de ácido fosfórico e nitrato de cálcio como precursores de cálcio e fósforo, respectivamente e como solvente utilizou-se o metanol na prepara
Externí odkaz:
https://doaj.org/article/57983dcbb002490ea079cb6aded37d68
Publikováno v:
International Journal of Analysis and Applications, Vol 3, Iss 1, Pp 1-13 (2013)
In this work we study the asymptotic behavior as t → ∞ of the solution for the Timoshenko system with delay term in the feedback. We use the semigroup theory for to prove the well-posedness of the system and for to establish the exponential stabi
Externí odkaz:
https://doaj.org/article/989676cc00d24f178b7f9384e67cb921
Autor:
M. L. Santos, U. R. Soares
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2007, Iss 9, Pp 1-24 (2007)
In this paper we prove the exponential decay in the case $n>2$, as time goes to infinity, of regular solutions for a nonlinear coupled system of beam equations of Kirchhoff type with memory and weak damping \begin{eqnarray*} &&u_{tt}+\Delta^2 u-M(||\
Externí odkaz:
https://doaj.org/article/1bf28ace7d834b4e8712b4281d2141a7
Autor:
Caio L. B. Andrade, Marcos V. Ferreira, Brenno M. Alencar, Ariel M. A. Junior, Tiago J. S. Lopes, Allan S. dos Santos, Mariane M. dos Santos, Maria I. C. S. Silva, Izabela M. D. R. P. Rosa, Jorge L. S. B. Filho, Matheus A. Guimaraes, Gilson C. de Carvalho, Herbert H. M. Santos, Márcia M. L. Santos, Roberto Meyer, Tatiane N. Rios, Ricardo A. Rios, Songeli M. Freire
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract Multiple Myeloma (MM) is a hematological malignancy characterized by the clonal proliferation of plasma cells within the bone marrow. Diagnosing MM presents considerable challenges, involving the identification of plasma cells in cytology ex
Externí odkaz:
https://doaj.org/article/98b8fd48eeca4ebd8d3615d3f65030ff
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2005, Iss 6, Pp 1-28 (2005)
In this paper, we investigate a mathematical model for a nonlinear coupled system of Kirchhoff type of beam equations with nonlocal boundary conditions. We establish existence, regularity and uniqueness of strong solutions. Furthermore, we prove the
Externí odkaz:
https://doaj.org/article/89e9ef7c6097447b86e4edb11b69899a
Publikováno v:
Abstract and Applied Analysis, Vol 2005, Iss 8, Pp 901-919 (2005)
We prove the exponential decay in the case n>2, as time goes to infinity, of regular solutions for the nonlinear beam equation with memory and weak damping utt+Δ2u−M(‖∇u‖L2(Ωt)2)Δu+∫0tg(t−s)Δu(s)ds+αut=0 in Q^ in a noncylindrical dom
Externí odkaz:
https://doaj.org/article/f00d2ca9f456408c933f3c5ab2963aff
Publikováno v:
Boletim da Sociedade Paranaense de Matemática, Vol 21, Iss 1-2, Pp 73-96 (2003)
We discuss the existence, uniqueness and stability exponential andpolynomial of global solutions for a nonlinear coupled system with nonlocal boundary conditions. We show that such dissipation is strong enough to produce uniform rate of decay. Beside
Externí odkaz:
https://doaj.org/article/156b5f415c9740f29cb00470c63e1be5
Autor:
M. L. Santos
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2002, Iss 7, Pp 1-17 (2002)
In this paper, we study the stability of solutions for semilinear wave equations whoseboundary condition includes a integral that represents the memory effect. We show that the dissipation is strong enough to produce exponential decay of the solution
Externí odkaz:
https://doaj.org/article/bc3df8e5d49b4ce58831865d41a7718b
Publikováno v:
Journal of Applied Mathematics, Vol 2014 (2014)
In this work we consider a coupled system of two weakly dissipative wave equations. We show that the solution of this system decays polynomially and the decay rate is optimal. Computational experiments are conducted in the one-dimensional case in ord
Externí odkaz:
https://doaj.org/article/de7cea2dfee74c90b29e93d1782e827f
Publikováno v:
Journal of Applied Mathematics, Vol 2010 (2010)
We consider the Bresse system with frictional dissipative terms acting in all the equations. We show the exponential decay of the solution by using a method developed by Z. Liu and S. Zheng and their collaborators in past years. The numerical computa
Externí odkaz:
https://doaj.org/article/b9f733f0fb114c63bba7641824e38732