We present Voxel Column Culling, an occlusion culling algorithm for real−time rendering of large terrain models. This technique can greatly reduce the number of polygons that must be rendered every frame, allowing a larger piece of terrain to be rendered at an interactive frame−rate. This is accomplished by using a form of 3D cell−based occlusion culling. A visibility table for the terrain mode...

The conclusion from the randomised badger culling trial was that localised badger culling not only fails to control but can actually increase the incidence of bovine tuberculosis in cattle. Professor Simon More and colleagues from University College Dublin question that conclusion, arguing that the data do not provide sufficient evidence to rule out alternative hypotheses.

We present an OpenGL-assisted visibility culling algorithm to improve the rendering performance of large polygonal models. Using a combination of hierarchical model-space partitioning, OpenGL-assisted view-frustum culling, and OpenGL-assisted occlusion culling, we achieve a significantly better performance on general polygonal models than previous approaches. In contrast to these approaches, we...

The effects of sex control and twinning techniques on determination of optimal culling parity of cows in beef cow-calf production systems were deterministically analyzed using a herd model simulation. The model simulated the annualized net revenue as an economic indicator during the whole life cycle of a cow. Biological factors (survivability, growth, reproduction, and feed requirements) and ec...

Only few theoretical efforts have been made in order to support decisions of culling/replacement in sow herds, despite obvious possibilities for affecting productivity. In this paper different culling strategies are compared: 1) culling according to parity (CP) and 2) culling according to a policy determined by a Dynamic Programming (DP) model using litter sizes of each sow (CS). The latter rep...

The theoretical basis and computational procedures for estimating the culling variate utilized by breeders in actual selection are presented. The essential part of this procedure is to derive the unknown culling variate in terms of a linear combination of traits based on realized indirect selection differentials of those traits and phenotypic variances and covariances among traits in the popula...

Socially transmitted wildlife behaviours that create human-wildlife conflict are an emerging problem for conservation efforts, but also provide a unique opportunity to apply principles of infectious disease control to wildlife management. As an example, California sea lions (Zalophus californianus) have learned to exploit concentrations of migratory adult salmonids below the fish ladders at Bon...