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A new series of thiopyrimidine‐5‐carbonitrile derivatives were synthesized and the chemical identity of them was established on the basis of spectral methods. The antimicrobial properties of all derivatives were investigated against Gram‐positive and Gram‐negative bacteria as well as fungal strains. The results of the antimicrobial screening showed that compounds 4, 11, and 12 have a higher and broad...
The Lie point symmetries for the fractional Riemann–Liouville system are used to reduce Fractional Whitham–Broer–Kaup (FWBK) equations to nonlinear fractional ordinary differential equations using the prolongation theorem. FWBK describe the propagation of fluid with different dispersive coefficients in shallow waters. Through the conformable derivative, we apply the integrating factors and Riccati–Bernoulli...
This paper is devoted to the theoretical analysis of steady and unsteady boundary-layer problems of a non-Newtonian fluid's flow using group methods. The application of a two parameter group reduees the number of the independent variabies of the problem by two and consequently the governing partial differential equations with the boundary conditions to ordinary differential equations with the appropriate...
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