[1] Recent theoretical models suggest that topographic characteristics of bedrock channels are products of interactions among tectonics, substrate resistance, and the climatically modulated erosive ability of the river. The degree to which these factors influence the form of channel profiles is poorly quantified at present. Here we investigate bedrock channels developed across the southern flan...

Simulations were carried out using penalty finite element analysis with bi-quadratic elements to investigate the influence of uniform and non-uniform heating of bottom wall within a trapezoidal enclosure of various inclination angles ðuÞ. Parametric study has been carried out for a wide range of Rayleigh number ðRaÞ ð10 6 Ra 6 10Þ, Prandtl number ðPrÞ ð0:026 6 Pr 6 988:24Þ and Darcy number ðDaÞ...

The popularity of spinner spreaders for application of granular fertilizers and agricultural lime, along with increased interests in variable–rate technology (VRT), has raised concern about application accuracy and distribution of these spreaders. This investigation was undertaken to assess the application distribution of a VRT spinner fertilizer spreader. Application distribution was assessed ...

In this paper, polar codes for the m-user multiple access channel (MAC) with binary inputs are constructed. It is shown that Arıkan’s polarization technique applied individually to each user transforms independent uses of a m-user binary input MAC into successive uses of extremal MACs. This transformation has a number of desirable properties: (i) the ‘uniform sum rate’ of the original MAC is pr...

——In this paper, polar codes for the -user multiple access channel (MAC)with binary inputs are constructed. It is shown that Arikan’’s polarization technique applied individually to each user transforms independent uses of an -user binary input MAC into successive uses of extremal MACs. This transformation has a number of desirable properties: 1) the ““uniform sum-rate”” of the original MAC is ...

Uniform convergence analysis of an upwind nite-diierence approximation of a convection-diiusion boundary value problem on an adaptive grid. We derive an-uniform error estimate for the rst-order upwind discretisation of a model convection-diiusion boundary value problem on a non-uniform grid. Here, is the small parameter multiplying the highest derivative term. The grid is suggested by the equid...