Interdisciplinary scientific problems of noise and fluctuations with technologycal applications: nanostructures, stochastic resonance, sensors and other relevant applications  Page description

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Details of project

 
Identifier
37664
Type K
Principal investigator Gingl, Zoltán
Title in Hungarian Interdiszciplináris fluktuáció és zajproblémák technológiai alkalmazásokkal: nanostrukturák, sztochasztikus rezonancia, szenzorok és más releváns alkalmazások
Title in English Interdisciplinary scientific problems of noise and fluctuations with technologycal applications: nanostructures, stochastic resonance, sensors and other relevant applications
Panel Physics
Department or equivalent Department of Experimental Physics (University of Szeged)
Participants Kish, László Béla
Vajtai, Róbert
Starting date 2002-01-01
Closing date 2005-12-31
Funding (in million HUF) 5.740
FTE (full time equivalent) 0.00
state closed project





 

Final report

 
Results in Hungarian
A kutatások során numerikus szimulációkkal és mérésekkel is megmutattuk, hogy a sztochasztikus rezonancia segítségével jelentős jel/zaj viszony erősítés érhető el igen általános feltételek és bemenő jelek esetére. Az 1/f zaj időbeli szerkezetének vizsgálatához DSP alapú jelgenerátort fejlesztettünk ki, és empirikus formulát adtunk meg a zaj szintmetszési statisztikájának leírására. Neurokardiológiai kutatási erdeményeink közé tartozik a vérnyomásjelek spektrális analízisének új, artefaktumokra sokkal kevésbé érzékeny módszerének bevezetése és DSP alapú mérőműszerek kifejlesztése. Félvezető polimerek termikus és elektromos tulajdonságainak kutatásába, nanotechnológiai alapú kémiai szenzorok vizsgálatába is bekapcsolódtunk. Digitális műszereket fejlesztettünk ki impulzuslézerek késleltetésének sztochasztikus szabályozására és egy AFM mérőműszer precízebb vezérléséhez is. A virtuális méréstechnikában szerzett jártasságunkra alapozva szakmódszertani kutatásként demonstrációs kísérleteket fejlesztettünk ki. A kutatási eredmények publikációi: 3 könyv illetve konferenciakiadvány szerkesztése; 6 nemzetközi és 2 hazai meghívott előadás, 8 nemzetközi és 1 hazai cikk, 10 nemzetközi és 1 hazai konferenciaelőadás.
Results in English
On the basis of numerical simulations and measurements we have shown that high signal-to-noise ratio gain can be obtained in systems showing stochastic resonance for quite general conditions and various signals. The time structure of 1/f type noises has been explored by universal DSP based noise generator developed by our group. We have introduced an empirical expression for the level-crossing statistics of 1/f noises. We have shown a new method for the spectral analysis of blood pressure which is much more straightforward and insensitive to artifacts than the commonly used resampling method. DSP based instruments supporting neurocardiological data acquisition have also been developed. We have started collaborations for the research of the thermal and electrical properties of semiconductor polymers, and nanotechnology-based chemical sensors. We have developed intelligent instruments for the stochastic control of laser pulse delays and a more precise control of an atomic force microscope (AFM). We have also developed demonstration experiments based on virtual instrumentation technology. Our results have been shown to the public in numerous publications: we have edited 3 books and conference proceedings, presented 6 international and 2 domestic invited talks, published 8 international and 1 domestic papers, presented 10 international and 1 domestic regular conference talks.
Full text http://real.mtak.hu/299/
Decision
Yes





 

List of publications

 
Z. Gingl, J.M. Sancho, L. Schimansky-Geier and J. Kertesz: Noise in Complex Systems and Stochastic Dynamics II, Proceedings of SPIE Vol. 5471, 2004, USA, 2004
R. Mingesz, P. Bara, Z. Gingl and P. Makra: Digital Signal Processor (DSP) based 1/f^alpha noise generator, Fluctuation and Noise Letters, Vol. 4, No. 4 (2004) L605–L616, 2004
P. Makra, Z. Gingl and R. Mingesz: Signal-to-noise ratio gain by stochastic resonance and its possible applications, International workshop on "Stochastic Resonance: New Horizons in Physics and Engineering" Oct 4-7 2004, Dresden, Germany, 2004
R. Mingesz, P. Bara, Z. Gingl and P. Makra: Digital Signal Processor (DSP) based 1/f noise generator, Proceedings of SPIE, eds. L.B White, C.N. Georghiades, M.H. Hoffmann and L. Pradell, Vol. 5473, 2004, USA, 2004
P. Makra, Z. Gingl and T.Fülei: Signal-to-noise ratio gain in stochastic resonators driven by coloured noises, Proceedings of SPIE, eds. Z. Gingl, J.M. Sancho, L. Schimansky-Geier and J. Kertész, Vol. 5471, 2004, USA., 2004
Z. Gingl: Stochastic Resonance I: Fundamental and Special Aspects, Fluctuation and Noise Letters Vol 2 No 3, 2002
Laszlo B Kish, Katja Lindenberg, Zoltán Gingl: Noise in Complex Systems and Stochastic Dynamics III, Proceedings of SPIE Vol 5845, 2005
Paprika D, Zollei E, Makra P, Gingl Z, Rudas L: Autonomic response to blood donation, Journal of Molecular and Cellular Cardiology, 34 (6) (2002) A49-A49, 2002
A.L. Nagy, F. Toth, R. Vajtai, Z. Gingl, J. Jori and J.G. Kiss: Effects of Noise on the Intensity of Distortion Product Photoacoustic Emissions, International Tinnitus Journal, Vol. 8, No. 2, 94-96 (2002), 2002
P. Makra, Z. Gingl and L.B. Kish: Signal-to-Noise Ratio Gain in Non-Dynamical and Dynamical Bistable Stochastic Resonators, Fluctuation and Noise Letters, Special Issue, 2 (2002) 3, L147-L15, 2002
P. Makra, Z. Gingl, T. Fülei: Signal-to-noise ratio gain in stochastic resonators driven by coloured noises, Physics Letters A 317 (2003) 228-232, 2003
É. Zöllei, D. Paprika, P. Makra, Z. Gingl, K. Vezendi and L. Rudas: Autonomic response to blood donation, Autonomic neuroscience: Basic and Clinical 110 (2004), 114-120, 2004
E. Pintér, R. Patakfalvi, T. Fülei, Z. Gingl, I. Dékány and Cs. Visy: Characterization of polypyrrole - Silver nanocomposites prepared in the presence of different dopants, Journal of Physical Chemistry B, 109 (37): 17474-17478 (2005), 2005
R. Mingesz, Z. Gingl and P. Makra: Marked signal improvement by stochastic resonance for aperiodic signals in the double-well system, European Physical Journal B (2006), in press, 2006
Z. Gingl and P. Makra: A dynamical system exhibits high signal-to-noise ratio gain by stochastic resonance, Third International Conference on Unsolved Problems of Noise and Fluctuation in Physics, Biology, and High Technology, Sept. 2-6, 2002, Washington DC, USA, 2002
Z. Gingl, R. Mingesz and P. Makra: On the amplitude and time-structure properties of 1/f^alpha noises, Third International Conference on Unsolved Problems of Noise and Fluctuation in Physics, Biology, and High Technology, Sept. 2-6, 2002, Washington DC, USA, 2002
R. Mingesz, P. Makra, Z. Gingl: Cross-spectral analysis of signal improvement by stochastic resonance in bistable systems, Third International Symposium on Fluctuations and Noise, 23–26 May 2005, Austin, Texas, USA, 2005
Z. Gingl, P. Makra,R. Mingesz: High signal-to-noise ratio gain by adding noise: stochastic resonance and possible applications, News, Expectations and Trends in Statistical Physics, NEXT-SigmaPhi 3rd International Conference 13-18 August 2005 Kolymbari CRETE, 2005
Z. Gingl, P. Makra, L. Rudas: Signal processing problems of neurocardiological fluctuations, 4th International Conference on Unsolved Problems of Noise, 6-10 June 2005, Gallipolli, Italy, 2005
L. B. Kish, C. Pennetta and Z. Gingl: Biased percolation approach to failure propagation in nanostructures and prediction of the total failure by electronic noise analysis, International symposium on Optical Science and Technology, SPIE's 47th annual meeting 7-11 July 2002, Seattle, Washington, USA, 2002
Z. Kantor and Z. Gingl: Virtual instruments perform real experiments in the physics class, Third European Conference on Physics Teaching in Engineering Education, PTEE 2002; 5-7 June 2002, Leuven, Belgium, 2002
L. Rudas, D. Paprika, E. Zollei, P. Makra and Z. Gingl: Autonomic responses to blood donation, Blood Pressure and Heart Rate Variability New Technologies-Drug Effects, Hungarian Satellite Symposium to HYPERTENSION PRAGUE 2002, 28 June 2002, Budapest, Hungary, 2002
Z. Gingl, P. Makra, M. Gaspar, E. Zollei, D. Paprika and L. Rudas: About the frequency domain analysis of unevenly sampled heart rate and blood pressure signals, Blood Pressure and Heart Rate Variability New Technologies-Drug Effects, Hungarian Satellite Symposium to HYPERTENSION PRAGUE 2002, 28 June 2002, Budapest, Hungary, 2002
R. Mingesz, Z. Gingl, P. Makra: Level-crossing time statistics of Gaussian 1/fα noises, First International Symposium on,Fluctuations and Noise, 2003
P. Makra, Z. Gingl, T. Fülei: Mechanism of signal-to-noise ratio gain in a monostable threshold stochastic resonator, First International Symposium on Fluctuations and Noise, 1–4 June 2003, Santa Fe, New Mexico USA, 2003
P. Makra, T. Fülei, Z. Gingl: Possibilities of signal-to-noise ratio gain in stochastic resonators driven by coloured noises, International Conference on Noise and Fluctuations, 2003, Prague, Czech Republic, 2003
Halmai László, Rudas Máté, Makra Péter, Gingl Zoltán és Rudas László: A dohányzás azonnali hatása a kardiovaszkuláris autonóm regulációra, Cardiologia Hungarica 33 (2003), 110-116, 2003
Gingl Zoltán, Kántor Zoltán és Mingesz Róbert: A DAS1414 általános célú intelligens adatgyűjtő és vezérlő egység és alkalmazásai, HUNGELEKTRO 2002 szimpózium, Budapest, 2002. április 23-25., 2002
Gingl Zoltán és Kántor Zoltán: Virtuális méréstechnika a kísérletező oktatásban, Országos Neveléstudományi Konferencia, Budapest, 2002, 2002




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