Chemical composition and liberation are critical attributes in characterizing a resource stock for beneficiation investigations. Though end-of-life printed circuit board is recognized as a valuable secondary resource stock, no procedural standard exists for the determination of its chemical composition, nor for the -75 microm fines generated during its comminution. The effect of the digestion p...

Bone Joint J 2013;95-B, Supple A:11–16. Received 5 September 2013; Accepted after revision 6 September 2013 Total hip replacement (THR) after acetabular fracture presents unique challenges to the orthopaedic surgeon. The majority of patients can be treated with a standard THR, resulting in a very reasonable outcome. Technical challenges however include infection, residual pelvic deformity, acet...

The relation between breakage mechanisms and liberation is critical in mineral processing. Recent studies underline the importance of texture in liberation. This study reviews relevant liberation models and proposes a new method for generating particles using image processing algorithms. One new texture simulation method and its relevance for liberation simulation is also introduced.

sarcheshmeh formation is one the lower cretaceous formations of the kopet-dagh basin in the ne of iran. an outcrop of this formation in the section of daddanlou village was studied palynologically. the study section, 248 meters thick includs gray marl and gray shale, with interbeded limestone. based on study of 135 slides of 27 samples taken from this formation showed the most of the samples co...