[ABE-L] COLMEA - colóquio interinstitucional - 23 de maio - IME-UERJ

[Maria Eulalia Vares]

Prezados colegas,


O COLMEA - Colóquio Interinstitucional Modelos Estocásticos e Aplicações -
tem mais um encontro no próximo dia 23 de maio, a partir das 14hs, no
Instituto de Matemática e Estatística da UERJ. Nesta ocasião teremos
palestras de Tiago Roux de Oliveira (UERJ)  e Ulisses Barres de Almeida
(CBPF)


Programa:

14:00 h - 15:20h  Tiago Roux de Oliveira (UERJ)

*"Model-free neuromuscular electrical stimulation by stochastic extremum
seeking"*

15:40h - 17:00h   Ulisses Barres de Almeida (CBPF)

"*Cherenkov Telescope Array: Construction, science case and the case for
open science"*


17:00h Discussão e lanche

Local: Instituto de Matemática e Estatística - UERJ
Auditório RAV 62, sexto andar, Bloco
UERJ Campus Maracanã
Rua São Francisco Xavier, 524
Maracanã, Rio de Janeiro - RJ

Um cartaz para divulgação encontra-se aqui:
http://www.im.ufrj.br/~coloquiomea/cartaz/2019_05.pdf

Informações mais completas sobre o COLMEA podem ser encontradas aqui:
http://www.im.ufrj.br/~coloquiomea/

Todos são muito bem vindos. Agradecemos também pela divulgação em suas
instituições.

Atenciosamente,
o comitê organizador: Americo Cunha (UERJ),  Augusto Q. Teixeira (IMPA),
Evaldo M.F. Curado (CBPF), Leandro P. R. Pimentel (UFRJ), Maria Eulalia
Vares (UFRJ), Nuno Crokidakis (UFF), Simon Griffiths (PUC-Rio)

=======

Resumos das palestras:

*Model-free neuromuscular electrical stimulation by stochastic extremum
seeking *
Tiago Roux de Oliveira (FEN-UERJ)

Stochastic Extremum Seeking (ES) approach is employed to adapt the gains of
a Proportional-Integral-Derivative (PID) control law for functional
neuromuscular electrical stimulation (NMES). The proposed scheme is applied
to control the position of the arm of healthy volunteers and stroke
patients so that coordinated movements of flexion/extension for their elbow
can be performed. This approach eliminates the initial tuning tests with
patients since the controller parameters are automatically computed in real
time. The PID parameters are updated by means of a discrete version of
multivariable stochastic ES in order to minimize a cost function which
brings the desired performance requirements. Experimental results with
stroke patients show the usual specifications commonly considered in
physiotherapy for functional rehabilitation are eventually satisfied in
terms of steady-state error, settling time, and percentage overshoot.
Quantitative results show a reduction of 65% in terms of the
root-mean-square error (RMSE) when comparing the tracking curves of the
last cycle to the first cycle in the experiments with all subjects.



*Cherenkov Telescope Array: Construction, science case and the case for
open science *
Ulisses Barres de Almeida (CBPF)

CTA will be the major global observatory for VHE gamma-ray astronomy over
the next decade and beyond. The scientific potential of CTA is extremely
broad: from understanding the role of relativistic cosmic particles, to the
search for dark matter. CTA is an explorer of the extreme universe, probing
environments from the immediate neighbourhood of black holes, to cosmic
voids on the largest scales. Covering photon energies from 20 GeV to 300
TeV, CTA will improve on all aspects of the performance with respect to
current instruments, surveying the high-energy sky hundreds of times faster
than previous TeV telescopes. This talk will present the science of CTA and
discuss its design infrastructure from the point of view of the potential
improved performance of the array by means of multi-objective optimisation
of the telescopes positions on the ground, employing evolutionary
algorithms. Finally, the talk will conclude by describing how the concept
of an open space science initiative can stimulate and increase the
availability and usability of astronomical data, extending the potential of
scientific discovery of observatories like CTA in the context of the new
multi-wavelength and multi-messenger astrophysics.
-------------- Próxima Parte ----------
Um anexo em HTML foi limpo...
URL: <https://lists.ime.usp.br/archives/abe/attachments/20190516/5d027dbd/attachment.html>