Simulation of grinding circuits has being performed from 30 years ago and is also to be more complete and powerful approach with improvement of mathematical models which simulate various processing units/machines. The modeling and simulation of various mineral processing circuits are presently performed. In order to simulate the present grinding circuits of Esfordi Phosphate processing plant, a...

Let A be a subset of the unit ball in R n , and 0 r 1 real. Find a point x for which the intersection of the r-neighborhood of x with A has a large measure. Tight bounds on this measure are found. 1 General After dinner a round bowl of chocolate-and-vanilla ice-cream is served. percent of the ice-cream is chocolate, your favorite avor. You have a round scoop with which to probe the dessert and ...

Previous studies have shown that balls subjected to spin induce large errors in perceptual judgments (Craig, Berton, Rao, Fernandez, & Bootsma, 2006; Craig et al., 2009) due to the additional accelerative force that causes the ball's flight path to deviate from a standard parabolic trajectory. A recent review however, has suggested that the findings from such experiments may be imprecise due to...

The objective of this work was to perform a quantitative analysis of the amino acid composition of soybean seeds as affected by climatic variables during seed filling. Amino acids were determined from seed samples taken at harvest in 31 multi‐environment field trials carried out in Argentina. Total amino acids ranged from 31.69 to 49.14%, and total essential and nonessential amino acids varied ...

Model perception and understanding the spatial structure of organic molecules has been a source of difficulty for many chemistry students. To alleviate these problems we have introduced an innovative teaching/learning approach that employs a combination of virtual and physical models in an organic high school chemistry curriculum. We studied the effect of this approach on enhancing meaningful l...

We attempted to repair full-thickness defects in the articular cartilage of the trochlear groove of the femur in 30 rabbit knee joints using allogenic cultured chondrocytes embedded in a collagen gel. The repaired tissues were examined at 2, 4, 8, 12 and 24 weeks after operation using histological and histochemical methods. The articular defect filling index measurement was derived from safrani...

UNLABELLED Calcium oxide, available for decades as a root canal filling material, has been little used in recent years due to its lack of radio-opacity, and an expectation that it would lead to an excess of root fractures. In this study, four general dentists submitted 79 cases of endodontically treated teeth whose roots were filled with either Biocalex 6/9, or Endocal-10, and rendered adequate...