Stream Reaeration in Nonuniform Flow: Macroroughness Enhancement

Average Steady Nonuniform Flow in Stratified Formations

A mathematical model of average nonuniform flow in heterogeneous tratified media is developed. The averaged Darcy's law is obtained by deriving the analytical expression of the effective conductivity tensor for media with small heterogeneities. The fundamental solution of the average flow equation (mean Green function) corresponding to the flow toward a single point source of deterministic disc...

Enhancement for Accurate Stream Prefetching

One fundamental approach to improve memory hierarchy performance is to prefetch the needed instructions and data before their usage when cache capacity is limited. A stream prefetcher captures a sequence of nearby misses when their addresses follow the same positive or negative direction in a small memory region [17]. Once a stream of cache misses is identified, the prefetcher prefetches consec...

Electroosmotic capillary flow with nonuniform zeta potential

The present work is an analytical and experimental study of electroosmotic flow (EOF) in cylindrical capillaries with nonuniform wall surface charge (zeta-potential) distributions. In particular, this study investigates perturbations of electroosmotic flow in open capillaries that are due to induced pressure gradients resulting from axial variations in the wall zeta-potential. The experimental ...

Josephson flux-flow oscillators in nonuniform microwave fields

A new speech enhancement: speech stream segregation

Speech stream segregation is presented as a new speech enhancement for automatic speech recognition. Two issues are addressed: speech stream segregation from a mixture of sounds, and interfacing speech stream segregation with automatic speech recognition. Speech stream segregation is modeled as a process of extracting harmonic fragments, grouping these extracted harmonic fragments, and substitu...