Autor: Lemos, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Estimate of geopressures using conformal mapping in eccentrical wellbores
Autorzy:: Silva, U. F.
Júnior, M. I. de Q.
Lemos, S.
Silva, A. H. F.
Furriel, G. P.
Segatti, N.
Calixto, W. P.
Powiązania:: https://bibliotekanauki.pl/articles/136162.pdf
Data publikacji:: 2017
Wydawca:: EEEIC International Barbara Leonowicz Szabłowska
Tematy:: annular geometry
conformal mapping
surge pressure
swab pressure
yield power law drilling fluid
Opis:: The purpose of this work is to calculate Surge and Swab pressures in eccentric wells. Analysis of the phenomenon, in which fluid is confined between two eccentric cylinders, are made. Conformal mapping calculations is used to lead the original eccentric domain into equivalent concentric domain, since usual models only make calculation for concentric geometries. The results of this study, using the proposed methodology, are presented and discussed.
Źródło:: Transactions on Environment and Electrical Engineering; 2017, 2, 2; 1-10
2450-5730
Pojawia się w:: Transactions on Environment and Electrical Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: A control Lyapunov function approach to adaptive control of HIV-1 infection
Autorzy:: Lemos, J. M.
Barao, M. S.
Powiązania:: https://bibliotekanauki.pl/articles/229511.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nonlinear adaptive control
HIV-1 infection
immunology
exact linearization
control Lyapunov function
Opis:: This paper presents an algorithm for nonlinear adaptive control of the viral load in HIV-1 infection. The infection model considered is a reduced complexity nonlinear state-space model with two state variables, that represent the plasma concentration of uninfected and infected CD4+ T-cells of the human immune system. The viral load is assumed to be proportional to the concentration of infected cells. First, a change of variables that exactly linearizes the system is obtained. For the resulting linear system the manipulated variable is obtained by state feedback. To compensate for the uncertainty in the infection parameter of the model an estimator based on a Control Lyapunov Function is designed.
Źródło:: Archives of Control Sciences; 2012, 22, 3; 273-284
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja