Abstract Energy dissipater in the stilling basin is a structure designed to protect downstream of spillway from erosion and scour by reducing flow energy dissipation pool. pool an important element hydraulic structures as transition between high-velocity sensitive tail water. The aim this study investigate ratios baffle blocks which constructed Type III with different geometric shapes using phy...

Although hypersaline environments pose challenges to life because of the low water content (water activity), many such habitats appear to support eukaryotic microbes. This contribution presents brief reviews of our current knowledge on eukaryotes of water-column haloclines and brines from Deep Hypersaline Anoxic Basins (DHABs) of the Eastern Mediterranean, as well as shallow-water hypersaline m...

Neurodegenerative diseases (ND) are characterized by the progressive loss of specific neuronal populations with consequent deterioration of brain's function. While some ND have monogenic causes, the vast majority is sporadic. Accordingly, etiology varies greatly between these conditions; the pathogenesis, however, shares important common traits. Trophic deprivation, oxidative stress, accumulati...

Intense pressure and velocity oscillations, as well extensive air entrainment, make the investigation of hydraulic leap created in stilling basins very difficult. Its intricacy, coupled with real-world need for to dissipate energy, puts physical modelling front center. Despite basins' essential role engineering, bibliographic research has often focused primarily on more familiar case classical ...

Ogee spillway is the most important structure used to get rid of excess water during flood. Scouring phenomenon occurring in downstream region due high energy dissapation an envitable. This study aims reduce amount scour occurred at stilling basin ogee by using three dissipation blocks namely as baffle, triangle and stepped blocks. A new distribution was proposed for each type dissipated block,...

This paper presents an experimental study of the transition from supercritical to subcritical flow at an abrupt drop. The paper reports a wide range of experimental conditions and the relevant regime charts. Long-term experimental results show that some flow configurations tend to behave quasiperiodically (i.e. oscillating flow patterns). The experimental results have direct implications on the...

Block ramps are ecofriendly drop structures, which ensure more stability in the downstream riverbed. The scouring stilling basin bed material generated by rapidly varied flow transition affects of ramp structure. In present study, a modified configuration is tested along with uniform conventional arrangements to check non-cohesive beds block ramps. Uniform horizontal configurations and sill arr...