Journal Paper - 2010 by L. Kish
Sensors, 2010
We have developed a simple way to generate binary patterns based on spectral slopes in different ... more We have developed a simple way to generate binary patterns based on spectral slopes in different frequency ranges at fluctuation-enhanced sensing. Such patterns can be considered as binary "fingerprints" of odors. The method has experimentally been demonstrated with a commercial semiconducting metal oxide (Taguchi) sensor exposed to bacterial odors (Escherichia coli and Anthrax-surrogate Bacillus subtilis) and processing their stochastic signals. With a single Taguchi sensor, the situations of empty chamber, tryptic soy agar (TSA) medium, or TSA with bacteria could be distinguished with 100% reproducibility. The bacterium numbers were in the range of 2.5 × 10 4-10 6. To illustrate the relevance for ultra-low power consumption, we show that this new type of signal processing and pattern recognition task can be implemented by a simple analog circuitry and a few logic gates with total power consumption in the microWatts range.
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Solid State Communications
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Journal of Physics C: Solid State Physics
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ABSTRACT
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... IN YBaCuO THIN FILMS: SCALING OF FLUCTUATIONS, EXPERIMENTAL EVIDENCE OF PERCOLATION AT THE SU... more ... IN YBaCuO THIN FILMS: SCALING OF FLUCTUATIONS, EXPERIMENTAL EVIDENCE OF PERCOLATION AT THE SUPERCONDUCTING TRANSITION Laszlo B. Kiss*, Peter Svedlindh and Leif Lundgren University of Uppsala ... JW Mantese, WA Curtin Watt W. Webb, Phys. Rev. ...
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Physical Review Letters, 1993
Time dependent fluctuations of the fraction of normal-conducting part in random resistor-supercon... more Time dependent fluctuations of the fraction of normal-conducting part in random resistor-superconductor (RS) and resistor-insulator (RI) networks lead to a novel effect close to the percolation threshold. The normalized noise scales as a function of the resistance with a characteristic exponent lambda. The value of lambda is different from the value found in classical percolation models but can be related
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Journal of Physics D: Applied Physics, 1987
The conductivity noises of mirrors yield an amplitude and phase fluctuation of the reflected elec... more The conductivity noises of mirrors yield an amplitude and phase fluctuation of the reflected electromagnetic wave via fluctuations of the complex refractive index of the material. The resultant of the elementary phase fluctuations is calculated by the use of Fresnel's ...
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Journal of Physics D: Applied Physics, 1986
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Journal of Applied Physics, 1999
Ag-Mn nanoparticles were prepared by advanced gas evaporation. Their composition corresponded to ... more Ag-Mn nanoparticles were prepared by advanced gas evaporation. Their composition corresponded to Ag0.89Mn0.11, and the particle size distribution was log normal. The particles demonstrated an unambiguous spin glass behavior with the temperature dependent magnetic susceptibility displaying a plateau at ~25 K. The magnetic domains were limited by the size of the particles.
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Europhysics Letters (EPL), 1995
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Zeitschrift f�r Physik B Condensed Matter, 1990
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Chaos, Solitons & Fractals, 2000
We introduce a new self-adaptive stochastic resonator system as a simple model for sensing mechan... more We introduce a new self-adaptive stochastic resonator system as a simple model for sensing mechanisms. The model is based on a level-crossing detector (LCD) with stepwise, dynamically increasing and relaxing threshold level after each firing event. The transfer function is found to be logarithmic-like over a wide range (six decades) of the input signal amplitude. Results on its dynamical response
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Chaos, Solitons & Fractals, 2000
... [4] DG Luchinsky and PVE McClintock, Irreversibility of classical fluctuations studied in ana... more ... [4] DG Luchinsky and PVE McClintock, Irreversibility of classical fluctuations studied in analogue electrical circuits, Nature 389 (1997), p. 463. Full Text via CrossRef | View Record in Scopus | Cited By in Scopus (70). [5] SM Bezrukov and I. Vodyanoy, Stochastic resonance in non ...
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Applied Physics A Materials Science & Processing, 1999
The results of UV laser ablation of gold nanoparticle films on glass substrates using femtosecond... more The results of UV laser ablation of gold nanoparticle films on glass substrates using femtosecond pulses are presented. Films of ultra-fine gold particles were prepared by an inert gas evaporation and deposition technique, resulting in a well-defined log-normal particle size distribution of (7&#451) nm. The pulse length of the laser was 500 fs at a wavelength of 248 nm. Ablation
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Journal Paper - 2010 by L. Kish
Papers by L. Kish