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- Luiz Francisco Marcopito, Sérgio S. Rodrigues, Maria Aparecida Pacheco, Mírian Matsura Shirassu, Artur Jaques Goldfeder, Marco Antonio de Moraes
- Revista de saude publica
- 2005

OBJECTIVE
To estimate the prevalence of a set of risk factors for non-transmissible chronic diseases and compare it to that found 15-16 years ago in a similar survey.
METHODS
A cross-sectional… (More)

- Viorel Barbu, Sérgio S. Rodrigues, Armen Shirikyan
- SIAM J. Control and Optimization
- 2011

We consider the Navier–Stokes system in a bounded domain with a smooth boundary. Given a sufficiently regular time-dependent global solution, we construct a finite-dimensional feedback control that… (More)

Controllability properties for the Navier–Stokes system are closely related to observability properties for the adjoint Oseen–Stokes system; boundary observability inequalities are derived, for that… (More)

- Axel Kröner, Sérgio S. Rodrigues
- SIAM J. Control and Optimization
- 2015

The feedback stabilization of the Burgers system to a nonstationary solution using finite-dimensional internal controls is considered. Estimates for the dimension of the controller are derived. In… (More)

We consider the Navier–Stokes system in a bounded domain with a smooth boundary. Given a time-dependent solution and an arbitrary open subset of the boundary, we prove the existence of a boundary… (More)

- Axel Kröner, Sérgio S. Rodrigues
- 2015 European Control Conference (ECC)
- 2015

The feedback stabilization of the Burgers system to a nonstationary solution using a finite number of internal piecewise constant controls is considered. Estimates for the number of needed controls… (More)

For a class of nonlinear systems we investigate the problem of under what conditions there exists a coordinate transformation that yields a state affine linear system up to output injection with… (More)

Given a nonstationary trajectory of the Navier–Stokes system, a finitedimensional feedback boundary controller stabilizing locally the system to the given solution is constructed. Moreover the… (More)

- Sérgio S. Rodrigues, Antonio Pedro Aguiar
- 2013 European Control Conference (ECC)
- 2013

Given a class of nonlinear systems with implicitly defined outputs, we provide a new algorithm to find appropriate local coordinates, in which the resulting system takes a desired target form that is… (More)