This combined numerical/laboratory study investigates the effect of stratification form on shoaling characteristics internal solitary waves propagating over a smooth, linear topographic slope. Three types are investigated, namely (i) thin tanh (homogeneous upper and lower layers separated by pycnocline), (ii) surface (linearly stratified layer overlaying homogeneous layer) (iii) broad (continuo...

The risk of potential water erosion is computed on a raster cell basis using elevation and soil data which are expressed by two factors soil erodibility and slope steepness. The SIte COmparative Method (SICOM) is used to evaluate the heterogeneity of these factors inside the borders of field blocks. With the help of this approved method a set of indicators are provided to support the evaluation...

The characteristics of the sediment transported by rivers (e.g. sediment flux, grain size distribution – GSD) dictate whether rivers aggrade or erode their substrate. They also condition the architecture and properties of sedimentary successions in basins. In this study, we investigate the relationship between landscape steepness and the grain size of hillslope and fluvial sediments. The study ...

Studies of DEM error have consistently found a link between terrain characteristics such as slope shape or steepness and error. This link is explored by looking at error in relation to various geomorphometric measures for a study area in Scotland. The magnitude of error is found to vary systematically between convex, planar and convex areas and measures of terrain roughness show some degree of ...

Ten patients without valvular disease were studied by ventriculography, and the rate and pattern of phasic blood flow into the left ventricle were determined by ventricular volume determinations at intervals of 33 ms during a single diastolic filling period. The derived left ventricular inflow patterns were then compared with the echocardiographic mitral EF slope obtained no more than 25 minute...

In this work, homogeneous thermochemical co-precipitation method was used to fabricate W-25wt%Cu nanocomposite. Synthesized nanocomposite powder was calcined and reduced. A hydrogen atmosphere sintering at 1200oC for 105 consolidated the product up to a density close to 98% theoretical density. Wear experiment were carried out using a pin-ondisc set up at three normal loads of 5, 10 and 15 N an...

In this work, homogeneous thermochemical co-precipitation method was used to fabricate W-25wt%Cu nanocomposite. Synthesized nanocomposite powder was calcined and reduced. A hydrogen atmosphere sintering at 1200oC for 105 consolidated the product up to a density close to 98% theoretical density. Wear experiment were carried out using a pin-ondisc set up at three normal loads of 5, 10 and 15 N an...

Accurate terrain representation with appropriate preservation of important terrain characteristics, especially slope steepness is becoming more crucial and fundamental as the geographical models are getting more complex and commonly used. Based on our earlier success in Overdetermined Laplacian Partial Differential Equation (ODETLAP), which allows for compact yet accurate compression of the Dig...

In this paper existing guidelines to predict wave overtopping on rubble mound breakwaters and coastal structures are modified improved with respect the influence of roughness crest width. Data from recently made model tests data combined demonstrate need for modifying these formulations in EurOtop. A new reduction factor γcw width is established an improvement method by Besley. The slope normal...