We generalize the classic Williams (1998, Review of Financial Studies, 11, 239–280) brokerage model by introducing diffused effort and asset heterogeneity. The term “diffused effort” refers to fact that an agent can cross-utilize spending on one listing another . One counterintuitive finding in Williams' paper is absence agency problem As a special case our model, we recover problem. demonstrat...

In a modern productive scenario the problem represented by the tons of scraps daily produced in the industrialized countries is often face by recycling. In this paper a contribution to the improvement of the recycling process performed by the disassembly of end-of-life widely diffused goods is proposed. An optimization methodology named “Ant Colony Optimization” (ACO) is proposed as an innovati...

Traditionally, diffused infrared configuration has been studied with the assumption that the illuminated region is placed at room ceiling. This is done to ensure minimum path loss to a maximum number of receiver locations. In many practical situations, this arrangement might be difficult to implement, either due to the ceiling structure or the difficulty in illuminating the entire ceiling unifo...

Transmitted light through a diffuse scattering medium includes strongly diffused light (SDL) and weakly scattered light (WSL). To realize clear transillumination imaging through thick body tissue, which is typically more than 10 mm, we developed a technique to extract the WSL component from diffused light. In experiments using a 15-mm-thick scattering medium (mu(s)' = 1.0/mm), the cross-section...