we study the notion of harmonicity in the sense of symplectic geometry, and investigate the geometric properties of harmonic thom forms and distributional thom currents, dual to different types of submanifolds. we show that the harmonic thom form associated to a symplectic submanifold is nowhere vanishing. we also construct symplectic smoothing operators which preserve the harmonicity of distri...

Scientific T To examine the spatial and temporal variability of rip currents using remote video imaging techniques. T To quantify changes in nearshore circulation and topography in response to varying incident wave conditions at different time scales including; P wave groupiness (time scales of 1-10 minutes), P tidal modulation (time scales of 12h and 24 h) and P wave height fluctuations associ...

this paper presents a new control method for a three-phase four-wire unified power quality conditioner (upqc) to deal with the problems of power quality under distortional and unbalanced load conditions. the proposed control approach is the combination of instantaneous power theory and synchronous reference frame (srf) theory which is optimized by using a self-tuning filter (stf) and without us...