R. A. Evarestov,*,† Yu. F. Zhukovskii,‡ A. V. Bandura,† and S. Piskunov‡,§,| Department of Quantum Chemistry, St. Petersburg State UniVersity, 26 UniVersitetsky AVenue, PetrodVorets 198504, Russia, Institute of Solid State Physics, UniVersity of LatVia, 8 Kengaraga Str., Riga LV-1063 LatVia, Faculty of Computing, UniVersity of LatVia, 19 Raina BlVd., Riga LV-1586, LatVia, and Faculty of Physics...

This study investigates entropy generation due to the unsteady boundary layer flow of an Oldroyd-B nanofluid past a Riga plate. The velocity, temperature and concentration fields are obtained equations solved numerically using spectral collocation method with overlapping grids. local distribution is by solving equation numerically. Sensitivity convergence analysis performed demonstrate accuracy...

The Riga plate is a substantial alteration in the world of engineering. Mainly used submarines to regulate water flow, studying behaviour fluid flowing over very advantageous. Although there are ample studies on plate, introduction fractional derivatives, coupled with non-Newtonian fluid, has yet be done. Within field mechanics, specifically boundary layer derivatives do not have proven geometr...

Marangoni convection is very useful in coating flow technology, surfactant replacement therapy for neonatal children, microfluidics, drying of semi-conductor vapors microelectronics, foams, and film drainage emulsions. The behavior gyrotactic microorganisms chemical reaction on the convected Carreau-Yasuda liquid flowing over Riga plate with thermophoretic particle deposition reported this rese...

Railway Engineering Institute, China Academy of Railway Sciences, Beijing, China, Birmingham Centre for Railway Research and Education, School of Civil Engineering, The University of Birmingham, Edgbaston, United Kingdom, Department of Civil Engineering, Riga Technical University, Riga, Latvia, Department of Civil Engineering, School of Engineering, The University of Birmingham, Birmingham, Uni...

Background: The term Riga-Fede disease has been used historically to describe traumatic ulceration that occurs on the ventral surface of tongue in neonates and infants. It is most often associated with natal and neonatal teeth in newborns. A case of Riga-Fede disease is presented here.