Recent years have witnessed a growing interest in the fields of video surveillance and mobile object tracking. This paper proposes a mobile object tracking algorithm. First, several parameters such as object window, object area, and expansion-contraction (E-C) parameter are defined. Then, a modified E-C algorithm for multiple-object tracking is presented. The proposed algorithm tracks moving ob...

CLINICALCHEMISTRY, Vol. 39, No. 9, 1993 2023 4. Navarro JA, Parra OE, Romero RA. Aluminum determination in whole blood, dialysis solution, and tap water samples from Maracaibo dialysis units (Venezuela) by graphite furnace atomic absorption spectrometry. J Trace Elem Electrolytes Health Dis 1988;2:3-8. 5. Granadfflo VA, Navarro JA, Campos SR,Avila Mayor A, Cardozo J, Romero RA. Total metal cont...

This work investigates the potential of magnetic Fe(3)O(4) nanoparticles as an adsorbent for separation and preconcentration of trace amounts of lead from water samples prior to electrothermal atomic absorption spectrometry (ETAAS) determination. No chemical modifier is required in graphite furnace. Pb(II) ion was adsorbed on magnetic Fe(3)O(4) nanoparticles in the pH range of 5.5-6.5, and then...