BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   PREDICTING DIMENSIONLESS LONGITUDINAL DISPERSION COEFFICIENT IN NATURAL STREAMS BY FUZZY-LOGIC APPROACH   Z. Fuat Toprak Istanbul Technical University, Department of Civil Engineering, Hydraulics Division 34469 Maslak, Istanbul, TURKEY toprakzey@itu.edu.tr In order to investigate dispersion process, researchers have used differential equations, which can be written under certain […]