-This paper presents an investigation of comminution mechanisms and microstructure development within simulated fault gouge. We sheared 4.0 mm thick layers of quartz sand between rough steel surfaces using a triaxial apparatus. The layers were sheared at constant effective normal stress of 100 MPa, under saturated drained conditions, and at 45 ° to the axis of cylindrical steel samples. Porosit...

With the aim of revealing effects low temperature on vibration impact comminution performance wheat bran, dynamic bran at different temperatures was simulated by using LS-DYNA. According to collision relationship between grinding medium and a three-component numerical calculation model established. The essence analyzed, solution method based LS-DYNA proposed. On this basis, finite element obtai...

The performance of a comminution and classification process depends on the design configuration each unit, plant, control physical properties incoming feed. Comminution processes should be designed to have stable efficient production over wide range conditions. However, demands from management, operational cost, investment, maintenance or any other related field can result in alterations that a...

Patients who sustain an acetabular fracture are a challenge to the orthopedic surgeon because of the inherent difficulty of the fracture and its treatment. Acetabular fractures in elderly patients add another level of complexity with additional co-morbidities associated with age such as osteoporotic bone, the fracture type and comminution, medical conditions, and insufficient bone stock to supp...

The lunar surface is extremely harsh and current mineral processing metal extraction technologies are not adequately equipped to address this environment. In paper, we review the metals available for conditions at surface, analyze challenges associated with comminution, beneficiation, operations. potential beneficial effects of natural also evaluated. This investigation concludes that process p...