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Institute of Cybernetics at Tallinn University of Technology

E. C NS. Jüri Engelbrecht. Institute of Cybernetics at Tallinn University of Technology Centre for Nonlinear Studies (CENS). E. C NS. CENS. Founded 1999 Head: Prof Jüri Engelbrecht , DSc, Dr h c Institute of Cybernetics at TUT Akadeemia tee 21, 12618 Tallinn, Estonia

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Institute of Cybernetics at Tallinn University of Technology

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  1. E C NS Jüri Engelbrecht Institute of Cybernetics at Tallinn University of Technology Centre for Nonlinear Studies (CENS)

  2. E C NS CENS Founded 1999 Head: Prof Jüri Engelbrecht, DSc, Dr h c Institute of Cybernetics at TUT Akadeemia tee 21, 12618 Tallinn, Estonia Tel. +372 6204160 Fax +372 6204151 je@ioc.ee http://cens.ioc.ee

  3. E C NS • GROUPS • Nonlinear waves • Fractality and biophysics • Nonlinear integrated photoelasticity • Water waves • Geometric approach • Nonlinear signal processing

  4. E C NS • ALTOGETHER (in 2007) • 20 fellows (PhD’s) • 10 PhD students • 10 MSc and BSc students • in 2006 – 5 foreign researchers Promoted (2000-2006) 21 BSc, 23 MSC, 9 PhD

  5. E C NS INTERNATIONAL ADVISORY BOARD Prof. R. Grimshaw (Loughborough) Prof. G.A.Maugin (Paris) Prof. H.K. Moffatt(Cambridge) Prof. G. Nicolis (Brussels) Prof. F. Pastrone (Turin) Prof. G. Stepan (Budapest) Prof. D.H. van Campen (Eindhoven) Prof. V.Saks (Grenoble, Tallinn)

  6. E C NS INTERNATIONAL CONTACTS • Bilateral agreements • International programmes/projects • Study visits/summer schools abroad • Graduate schools/seminars at CENS

  7. E C NS ESF PROGRAMME NATEMIS • Resonance method for nondestructive evaluation • Nonlinear effects Italy, Germany, Czech Republic, Belgium, Sweden, Spain • Institute of Thermomechanics, Prague • Fraunhofer Institute for Nondestructive Testing,Saarbrücken

  8. E C NS FP6 PROJECT WIND-CHIME • Wide-range Non-intrusive Devices toward Conservation of Historical Monuments in the Mediterranean Area • Material technologies toward less intrusive implementations Italy, Norway, Tunis, Egypt, Greece, Jordan

  9. E C NS MARIE CURIE POST-DOC FELLOWSHIPS • Cell energetics • Marie Curie Fellow – Marko Vendelin(Grenoble) • Marie Curie Fellow – Olav Kongas (Amsterdam) MARIE CURIE REINTEGRATION GRANT Marko Vendelin(Tallinn)

  10. E C NS MARIE CURIE TRANSFER OF KNOWLEDGE ROGRAMME • CENS (Tallinn) • CMA (Oslo) • Contract 2005-2009 Senior Fellows Post-Docs Focus on: nonlinear waves biomechanics Centres of Excellence in Estonia Norway

  11. E C NS WELLCOME TRUST GRANT Marko Vendelin “Cardiac Cell Energetics”, 1 meuro New lab on Systems Biology experiments + in silico modelling (Analysis of structural and functional aspects of compartmentation of adenine nucleotides in heart muscle cells)

  12. E C NS FRENCH-ESTONIAN PROGRAMME PARROT • 2003-2004, nonlinear waves • 2005-2006, piano dynamics

  13. E C NS BILATERAL • Paris 6 • Helsinki • Eindhoven • Turin • Budapest • Hong Kong • Loughborough • Messina

  14. E C NS ERA-NET COMPLEXITY (1) • Specific Support Action 2004-2005 • Full Programme 2006-2009 • 11 countries: UK (contractor) Belgium, Denmark, Estonia, Greece, Hungary, Ireland, Italy, the Netherlands, Portugal, Spain observers – France, Germany

  15. E C NS ERA-NET COMPLEXITY (2) • Mathematics • Physics • Chemistry • Biology • Computer Science • Economics • … • Nonlinear dynamical systems • Systems out of equilibrium • Control theory • Adaptive and self-organizing systems • Complex dynamical networks of interacting units “The whole is more than the sum of the parts” Aristotle

  16. E C NS ERA-NET COMPLEXITY (3) • CENS and CDC • Nonlinearity and fractality of natural processes • Biocomplexity • Complexity of dynamical processes • Software complexity • Complexity in software-intensive systems

  17. E C NS CENS KEYWORDS Nonlinear dynamics Complex systems Soft matter physics Microstructured solids Solitons Acoustodiagnostics Photoelasticity Biophysics and cell energetics Surface and extreme waves in sea Signal processing Nonlinear differential equations Complexity

  18. E C NS MAIN RESULTS Interaction solitons, shallow water Surface elevation in the vicinity of the interaction area, corresponding to incoming solitons with equal amplitudes but different angles between their crests.

  19. E C NS MAIN RESULTS Interaction of solitons in nature

  20. E C NS MAIN RESULTS Emergence of solitons Emergence of solitons from an harmonic excitation in force field. After a certain transfer period the emerging coherent pattern is seen with amplified solitons.

  21. E C NS MAIN RESULTS Wave motion and dynamics Mindlin model for microstructured solids, 1D. Two trains of solitons emerging from a single input.

  22. E C NS MAIN RESULTS Phase transition Stress wave changes the shape of a martensitic inclusion in an austenitic solid.

  23. E C NS MAIN RESULTS Thermomechanical modelling Shift of a phase boundary (green line) between martensite and austenite under localized pulse-type stress load at the left boundary. The influence of shear causes a rugged interface.

  24. E C NS MAIN RESULTS Biophysics Schematic representation of the biochemical processes in the reaction-diffusion model of the heart cell.

  25. E C NS MAIN RESULTS Biophysics Stress in the heart.

  26. E C NS MAIN RESULTS Biophysics Stress in the heart.

  27. E C NS MAIN RESULTS Biophysics Lyapunov exponent map on the para-meter plane for the periodical driven nerve pulse equation modelling cardiac conduction.

  28. E C NS MAIN RESULTS Soft matter physics A chaotic mixing of an initially smooth field of dye by a smooth chaotic velocity field leads to complex multifractal patterns.

  29. E C NS MAIN RESULTS Soft matter physics Changes in a stock portfolio.

  30. E C NS MAIN RESULTS Biomedical engineering EEG measurements, external source – a mobile phone.

  31. E C NS MAIN RESULTS EEG correlation

  32. E C NS Interaction of two counter-propagating acoustic waves. MAIN RESULTS Stress analysis The idea of acoustodiagnostics.

  33. E C NS MAIN RESULTS Stress analysis Polariscope AP-04SM for determining residual stresses in a glass specimen.

  34. E C NS MAIN RESULTS Tomography Geometry of the high-pressure lamp and axial stress field in the axisymmetric part.

  35. E C NS MAIN RESULTS Wave motion and dynamics Testing device for piano hammers. The hysteretic parameters of felt are determined from the measured nonlinear force - compression curves.

  36. E C NS See also http://cens.ioc.ee

  37. E C NS ESF Programme NATEMIS: P.-P. Delsanto (ed). Universality of Nonclassical Nonlinearity. Applications to Non-Destructive Evaluations and Ultrasonics. Springer, 2006, 546 pp. papers by Engelbrecht et al Berezovski et al Ravasoo et al Pastrone

  38. E C NS AJP: Cell Physiology, 2006, 291 (Dec.), issue 6: Special call: Systems Biology of the Mitochondrion Guest editors: Dan Beard, Marko Vendelin Issue 6: 14 papers Next issues: other 10 papers

  39. E C NS • MAIN GOALS OF CENS • To be at the frontier of science • To react to national interests • To participate in international research • To disseminate knowledge • To keep a good research atmosphere

  40. E C NS

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