The mechanisms by which lithology modulates geomorphic processes are poorly known. In the Oregon Coast Range (OCR), rhythmically bedded sandstones of the Eocene Tyee Formation underlie steep, soil-mantled hillslopes, with relatively uniform ridge-valley spacing. These characteristic landforms are perturbed where diagenetic variations manifest as resistant cliffs. Here we use petrology, rock mec...

BACKGROUND A high percentage of closed femur fractures have slight comminution. Using micro-CT (μCT), multiple fragment segmentation is much more difficult than segmentation of unfractured or osteotomied bone. Manual or semi-automated segmentation has been performed to date. However, such segmentation is extremely laborious, time-consuming and error-prone. Our aim was to therefore apply a fully...

A significant challenge in mineral raw materials comminution is the improvement of process energy efficiency. Conventional techniques, although globally used, are far from being considered power-efficient. The use high-voltage electric pulses a concept that worthy study; despite its lack industrial-scale validation after several decades lab-scale research, it seems promising as pretreatment lea...

Abstract. Impact fragmentation is the underlying principle of comminution milling of dry, bulk solids. Unfortunately the outcome of the fragmentation process is more or less determined by the dimensionality of the impactor and it’s impact velocity, prohibiting the adjustment of desired fragment distributions. By modifying target shapes or impact angles, differences in the fragment mass distribu...

The possibility of extraction metals from ores different genesis, containing low-dimensional structures rare and noble metals, increases their commodity value and, in a deficit for some types leads to the need search develop new nature-like technologies, which can be used extract genesis almost all valuable noble, earth nonferrous regardless concentration. This article presents results studying...

Plant biomass as a substitute for fossil oil is one of the most promising pathways to reducing environmental impact human activities. Ultrafine comminution plant materials can produce ultrafine powders suitable direct use in advanced-technology applications an engine, becoming sustainable powdered biofuel. However, extremely energy-intensive process, making it vital industry select efficient mi...