Abstract: Two modes of headcut migration are generally recognized: (1) Rotating headcuts that tend to flatten as they migrate; and (2) stepped headcuts that tend to retain nearly vertical faces. A mathematical description of the ...

Abstract: Time‐varying sediment concentration exiting a plunge pool is analyzed by considering the effect of free‐overfall jet diffusion on sediment detachment and scour. The analysis results in dimensionless relationships between ...

Abstract: The high temperatures, which are often encountered by mine rescue teams during emergency situations, may cause severe physiological strain. For example, at the Somerset coal mine, temperatures ...

Abstract: Accurate estimates of evapotranspiration from constructed wetlands are required to establish design flow estimates and to assess the effectiveness of wetland water quality amelioration. Water consumption by two wetland ...

Abstract: We have previously reported on the preparation of calcium superoxide, Ca(O2 )2 , from calcium peroxide diperoxyhydrate, CaO2 ·2H2 O2 . In that work, the preparation of a product of higher ...