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Cellular signal transduction involves a transport step from the plasma membrane towards the nucleus, during which the signaling molecules are partly deactivated in control loops. This leads to a gradient in the concentration of active signaling molecules. The low number of molecules introduces spatio-temporal fluctuations and the asymmetric cellular architecture further increases the complexity. We...
3D visualization on electromagnetic environment (EME) is one of the most important research fields in virtual battle space. This paper presents a novel approach on visualizing the 3D EME by direct volume rendering on 3D globe. 3D power volumetric data is calculated based on the Longley-Rice radio propagation model(Irregular Terrain Model, ITM), which takes into account the effects of irregular terrain...
Transfer function (TF) specification is an important research issue in direct volume rendering (DVR). In this paper, the problem has been developed as a parameter optimization model and a modern evolutionary algorithm, the particle swarm optimization (PSO), has been applied to solve it effectively. Initial solutions are formed and encoded into particles of PSO, the particles fly intelligently in the...
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