The new species is a member of an apparently monophyletic group within the genus that includes R. flexile, R. walga, R. himanturi, R. burgeri, R. euzeti, R. hawaiiensis, R. urobatidium, R. paratrygoni, R. ditesticulum, R. tetralobatum, R. margaritense, R. biorchidum, and R. spinicephalum. All of these species have bothridia with medial longitudinal septa, a constriction at mid-bothridium, and, ...

The comparative analysis of the two hybrid composites, obtained by compocasting process, based on A356 and ZA-27 alloys reinforced with 10 wt. % SiC 0, 1 3 graphite (Gr) is presented. Optimisation their tribological behaviour was performed Taguchi method artificial neural network (ANN). Tribological tests were a block-on-disk tribometer, at three sliding speeds, normal loads distance 600 m, w...

The oxide film on the scrap surface is one of primary sources inclusions in aluminum melt. Understanding evolution films melt an important step for developing efficient recycling technologies and controlling quality product. In present study, we studied behavior were introduced via alloy scraps into melt, micro-morphology composition analyzed by scanning electron microscope energy spectrum. Res...