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Theoretical investigation of ozone production in negative corona discharge
B. Mennad,Z. Harrache,D. Amir Aid,A. Belasri 한국물리학회 2010 Current Applied Physics Vol.10 No.6
The purpose of this work is to highlight the chemical kinetics in plasma of pure oxygen. A comprehensive model of ozone generation in wire-to-cylinder negative corona discharge is presented. The model combines the physical processes in the discharge with the chemistry of ozone formation. It is based on an extensive reaction scheme including the major electronic and ionic processes. The importance of excited atomic and molecular states is demonstrated. The obtained results show clearly that the surface material affect quite well the ozone decomposition.
Bioimpedance spectroscopy tensor probe for anisotropic measurements
Kwon, H.,Wi, H.,Karki, B.,Lee, E. J.,McEwan, A.,Woo, E. J.,Harrach, B.,Seo, J. K.,Oh, T. I. IET 2012 Electronics letters Vol.48 No.20
<P>The tetrapolar electrode configuration used in bioimpedance suffers from negative sensitivity and is confounded by anisotropic tissue such as blood vessels or muscle and nerve fibres. Proposed is a circular array of electrodes to focus current directly underneath the probe and provide anisotropy information. It is shown that an implementation using 16 miniature electrodes is able to outperform the tetrapolar method in sensitivity and impedance estimation. The proposed method can also recover anisotropic conductivity tensors from experiments for the first time.</P>