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In this paper, we assess the performance and efficiency of an ideal traveling wave electroosmotic micropump with a continuous electrode. All simulations were performed in the combination of Matlab and COMSOL Multiphysics using a weak form. The mathematical model is based on the Poisson-Nernst-Planck-Navier-Stokes approach with fully coupled governing(More)
We propose an alternative kinetic description of electrochemical interactions. The model is based on the balances of mass and electric charge and the kinetic equations for the electrode reaction. The rate of electrochemical reaction is dependent on the surface concentration of electric charge. The current-voltage characteristics of a selected(More)
Acute spinal cord injury is a serious medical condition that results in 10,000 new cases of paralysis each year. Initial physical damage to the spinal cord is followed by chemical damage, resulting in cell death and scar tissue formation. Methylprednisolone therapy has proven effective in suppressing the chemical damage, particularly when started within 8(More)
PURPOSE To outline the experience of a referral radiology department with preoperative localisation procedures on the basic of mammograms obtained by other facilities. MATERIAL AND METHODS 342 consecutive female patients aged 56.5 +/- 11.9 years underwent preoperative breast localisation procedures prior to surgery. Of these patients 241 had their(More)
This paper deals with the mathematical modeling of traveling-wave ac electro-osmotic micropumps with a zig-zag arrangement of microelectrodes. A mathematical model based on the Poisson-Nernst-Planck-Navier-Stokes description is used in this study within the physically relevant ranges of the model parameters. We present an extensive set of parametrical(More)