Vibrotactile texture stimuli have commonly been used to produce sensations of roughness. The extension of such stimuli to other textural modalities enhances their applicability. We found that laterally asymmetric vibrotactile stimuli cause a sensation of friction rather than vibration. When a vibrotactile contactor moves in one direction, it sticks to the finger pad and induces lateral skin str...

Catalytic membrane ozonation is a hybrid process that combines filtration and catalytic ozonation. The deposited with an appropriate solid material acts as catalyst. As consequence, the contactor can act simultaneously (i.e., improving transfer/dissolution of gaseous ozone into liquid phase), well reactor oxidizing organic compounds). It be used in water wastewater treatment limiting disadvanta...

efforts to increase the mass transfer coefficient, enhance the contact area, and decrease the power input of contractors have given risen to the development of the pre-dispersed solvent extraction (pdse) contactor and the devise of the new dissolved nitrogen pdse (dnpdse) contactors. the studies conducted after the design of the new contactor to determine the working conditions for its suitable...

A rotating biological contactor (RBC) offers a low energy footprint but suffers from performance instability, making it less popular for domestic wastewater treatment. This paper presents study on an RBC integrated with membrane technology in which filtration was used as post-treatment step (RBC–ME) to achieve enhanced performance. The and RBC–ME systems were operated under different hydraulic ...