Mika Waris

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A new automatic wheeze detection method which is based on image processing techniques applied to the sonagram was developed here. In the calculation of the sonagram, autoregressive and FFT spectrum estimation methods were compared. The method was validated in four wheezing asthmatic patients by a pulmonary physician. Nine out of ten wheezes longer than 250(More)
A method for facile high-capacity screening of algal samples for anatoxin-a (ANTX-a), a potent neurotoxin of Anabaena flos-aquae, is presented. The method is based on in situ colour reaction of algal extracts containing ANTX-a on a thin-layer chromatographic plate with the diazonium reagent Fast Black K salt, and subsequent separation of the orange-red(More)
— The measurements of different parameters remained always a prime feature of the practical development of any accurate system. In connection with the optical communication, Phenomenon of PMD in single mode optical fibers takes place due to enormous polarization cross couplings throughout a specific length of the fiber and becomes a deteriorating factor for(More)
Optical sources still require an exhaustive and regressive research approach to measure the key parameters leading towards the ultimate robust refining of spectral properties. The scalability in such measurements when the parametric margins have a close comparative difference produces a vital clarity in simulative results. The effect of polarization mode(More)
Knowledge and information are ever increasing strategic assets for enterprises. The main outcome of this study shows that there are many special grounds for intensifying the acquisition and utilisation of patent and market information in Finnish SMEs. This also holds true for the development and supply of information services. The analysis about the(More)
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