Abstract In this research, the models of Inflatable weirs with internal pressures 0.5 and 1.4 at three heights 0.15, 0.2 0.25 m were constructed. The deflectors used in two geometric sections, including rectangular triangular shapes, they installed angles 30, 45, 60 degrees downstream weir body. results showed that value Cd changes between 0.28 0.35 while range ratio upstream flow head on crest...

Acrofacial dysostosis of Nager is a little known hereditary syndrome in which the findings of mandibulofacial dysostosis are associated with defects of the limbs. The present case showed other abnormalities including the Stilling-Turk-Duane syndrome, conductive deafness and ptosis of the transverse colon.

In the stepped spillway, steps, by providing an artificial roughening bed, dissipate flow of energy more than other types spillways, so construction costs for stilling basin are reduced. However, what is important in this type spillway increasing effectiveness steps rate dissipation. The present study deals with experimental and numerical simulations regarding influence geometric appendance ele...

Hydraulic jumps have immense practical utility in hydraulic engineering and allied fields, such as energy dissipater to dissipate the excess energy of flowing water downstream of hydraulic structures (spillways and sluice gates), efficient operation of flow measurement flumes, chlorinating of wastewater, aeration of streams which are polluted by biodegradable wastes and many other cases. The le...

We investigate the evolutionary history of the wide-ranging Nearctic treefrog Hyla arenicolor through the integration of extensive range-wide sampling, phylogenetic analyses of multilocus genetic data, and divergence dating. Previous phylogeographic studies of this frog documented a potential signature of introgressive hybridization from an ecologically and morphologically divergent sister spec...