Multiple gain control processes in contrast–contrast phenomena

Multiple gain control processes in contrast–contrast phenomena

Spatial interactions among orientation-tuned gain control processes are presumed to mediate center-surround contrast-contrast phenomena. In this paper, we assess contributions of gain control processes that pool over orientation. We measured the apparent contrast of a luminance-modulated center disk embedded in various modulated surrounds. In all conditions, observers compared the apparent cont...

Fuzzy Gain-Scheduling Control of Nonlinear Processes

Fuzzy gain-scheduling is a special form of model-based fuzzy control that uses linguistic rules and fuzzy reasoning to determine the controller parameter transition policy for a dynamic plant subject to large changes in its operating state. Issues of stability and overall dynamic behavior are resolved using conventional modern control techniques. The design of a fuzzy gain-scheduling controller...

Collective phenomena in intracellular processes.

Intracellular transport and cytoskeletal organization are the result of an interaction between elastic filaments and force generation by motor proteins. The observed phenomena are still too complex for a complete theoretical description. Studies on simple model systems reveal interesting collective phenomena which can be understood on the basis of driven stochastic processes far from equilibrium.

Geophysical Phenomena and Processes

The physical description in itself can be based on the kind of coupling being involved (i.e., thermal, gravitational, electromagnetic, or by matter exchange). Gravitational coupling is related to celestial mechanics and tidal deformation. Thermal coupling is ultimately concerned with energy balance. Matter exchange is concerned with the interaction between contiguous systems, and particularly i...

Robust Control Design of Gain-scheduled Controllers for Nonlinear Processes