In the present analysis, the Dufour and Soret effects on unsteady heat-mass transfer of a viscous incompressible Powell-Eyring fluids flow past an expanding/shrinking permeable sheet are reported. The fluid boundary layer develops over the variable sheet with suction/injection to the non-uniform free stream velocity. Under the symmetry group of transformations, the governing equations along wit...

◈ well-known keystream generator ◈ proposed by Coppersmith, Krawczyk and Mansour [Crypto 93] ◈ use two LFSRs A and S. – Let a 0 , a 1 , … denote the sequence generated by A. – Let s 0 , s 1 , … denote the sequence generated by S. ◈ The resultant sequence is a " shrunken " version of the first one. ◈ modified version of Shrinking Generator ◈ proposed by Meier and Staffelbach [Eurocrypt 94] ◈ use...

This article gives a brief overview of the major portable techniques: those based on optical spectroscopy techniques, including near-infrared (NIR), mid-infrared (mid-IR), and Raman spectroscopy; mass spectrometry (MS) systems, high-pressure MS (HPMS), gas chromatography–MS (GC–MS), ion mobility (IMS); elemental such as X-ray fluorescence (XRF) laser-induced breakdown (LIBS); emerging miniaturi...

In this paper we classify the four dimensional gradient shrinking solitons under certain curvature conditions satisfied by all solitons arising from finite time singularities of Ricci flow on compact four manifolds with positive isotropic curvature. As a corollary we generalize a result of Perelman on three dimensional gradient shrinking solitons to dimension four.