Dunes are critical for understanding riverine sediment transport, deposition, flow resistance and channel processes. Although previous studies have examined the riverbed micromorphology of Lower Mississippi River in USA, our knowledge detailed quantification dune morphology this other large alluvial rivers is still limited. It also not well understood how dunes a straight reach meander bend dif...

At present, no practical methodology exists for routine prediction of stream meander migration and uncertainty concerning the level of risk to infrastructure remains unacceptably high. This paper describes a Handbook that includes ArcView 3.2-based Bend Measurement and Channel Migration Predictor extensions, which provides a practical methodology to transportation engineers, floodplain managers...

The research reconstructs the development of alluvial fan River Stryi in Holocene and dates phases increased river activity their correlation with other valleys upper Dniester Vistula basins. age palaeochannels stratigraphy fills are based on radiocarbon dating supported by results palynological analyses. oldest (fossil) palaeochannel was dated to Younger Dryas. large-radius meander abandoned a...

Meandering channels are dynamic landforms that arise as a result of fluid mechanic and sedimentary processes. Their evolution has been described by the meander-morphodynamic equations, which dictate channel curvature bed topography give rise to local perturbations in streamwise velocity, prompting preferential erosion sediment deposition constitute meander behaviour. Novel mathematical conditio...

Several Brownian areas are considered in this paper: the Brownian excursion area, the Brownian bridge area, the Brownian motion area, the Brownian meander area, the Brownian double meander area, the positive part of Brownian bridge area, the positive part of Brownian motion area. We are interested in the asymptotics of the right tail of their density function. Inverting a double Laplace transfo...

The present paper describes a capacitive feed (C-feed) for small, low-profile linear antennas. A meander line, which is the radiating element, in such antennas with a metallic back conductor electromagnetically couples a metallic feed plate placed between the meander line and the back metal (ground). This antenna has a very small leakage current on the outer surface of the coaxial cable and can...