The influence of cam geometry and operating conditions on chaotic mixing of viscous fluids in a twin cam mixer
( 581–598) AIChE Journal 57 #3 (2011)
Robinson and Cleary of CSIRO Mathematics, Australia used smooth particle hydrodynamica (SPH) simulations to better understand the mixing performance of a class of two-dimensional Twin Cam mixers.  The chaotic manifolds of the flow are used to describe the mixing and to identify isolated regions. For an equilateral triangle cam geometry, a figure-eight manifold structure traps a layer of fluid against the cam boundaries. Changes in the differential rotation and phase offsets between the cams results in modest improvements in the mixing rate across the manifold barrier. Reducing the apex angle of the triangle changes the manifold structure and allows the trapped layer of fluid to mix more effectively with the rest of the domain.  Examining the chaotic manifolds within a typical industrial mixer can provide valuable insight into both the transient and long-term mixing processes, leading to a more focused exploration of possible mixer configurations and to practical improvements in mixing efficiency.  (RDC 2/10/20110

Studies on the Influence of Silane Treatment on Mechanical Properties of Coconut Sheath-Reinforced Polyester Composite
(1600-1605) Polymer - Plastics Technology and Engineering 50 #15 (2011)
Abstract
Jappes and Siva ofKalasalingam University, India,used naturally woven coconut sheath as a new type of reinforcement. The composite was fabricated using compression molding machine.  In all the testing, the coconut sheath-reinforced polyester composite showed enhanced results. For further improvement in the properties, chemical modification such as silane treatment was given to the fibers. As expected, the mechanical properties of coconut sheath-reinforced composites were improved.  (RDC 11/11/2011)