outdoor experiments on a once-through single glazed solar air heater with perforated metal absorber plate were conducted to determine the practical effect of absorber plate porosity as well as suction air flow rate on the collector thermal efficiency and its total pressure drop. three aluminum absorber plates were made perforated by drilling circular holes with different diameter/pitch ratios i...

An imaging polarimeter using liquid-crystal variable retarders (Bueno, J. M., Artal, P. (1999). Double-pass imaging polarimetry in the human eye. Optics Letters, 24, 64-66) has been used to study the parameters of polarization in the living human eye. Retardation introduced by birefringent structures of the eye has been calculated by using a spatially resolved collection of Mueller matrices obt...

In this study, we investigated if extrusion-cooking can be used to change physicochemical and nutritionally relevant properties of oat bran. The importance moisture content, last-barrel set temperature type (single-pass, double-pass, acid) on these was evaluated using two full factorial design experiments. Acid led a 5.7-fold increase in water-extractable dry matter content increased β-glucan e...