As well known, spacelike proton form factors expressed in the Breit frame may be interpreted as the Fourier transform of static space distributions of electric charge and current. In particular, the electric form factor is simply the Fourier transform of the charge distribution F (q) = ∫ e ρ(r)dr. We don’t have an intuitive interpretation of the same level of simplicity for the proton timelike ...

The quark helicity measured in polarized deep inelastic scattering is different from the quark spin in the rest frame of the nucleon. We point out that the quark spin distributions ∆qRF (x) are connected with the quark helicity distributions ∆q(x) and the quark transversity distributions δq(x) by an approximate relation: ∆qRF (x) +∆q(x) = 2δq(x). This relation will be useful in order to measure...

Shehtman introduced bimodal logics of the products of Kripke frames, thereby introducing frame products of unimodal logics. Van Benthem, Bezhanishvili, ten Cate and Sarenac generalize this idea to the bimodal logics of the products of topological spaces, thereby introducing topological products of unimodal logics. In particular, they show that the topological product of S4 and S4 is S4 ⊕ S4, i....

We discuss a necessary nonvalence contribution in timelike exclusive processes. Following a Schwinger-Dyson type of approach, we relate the nonvalence contribution to an ordinary light-front wave function that has been extensively tested in the spacelike exclusive processes. A complicate four-body energy denominator is exactly cancelled in summing the light-front time-ordered amplitudes. Applyi...

This thesis proposes a complete modeling and control design methodology for a multifunctional single-phase bidirectional PWM converter in renewable energy systems. There is a generic current loop for different modes of operation to ease the transition between different modes, including stand-alone inverter mode, grid-tied inverter mode, grid-tied rectifier mode and grid-tied charger/discharger ...

Consider the configuration space Q for some physical system, and a continuous group of transformations G whose action on the configurations is declared to be physically irrelevant. G is to be implemented indirectly by adjoining 1 auxiliary g per independent generator to Q, by writing the action for the system in an arbitrary G-frame, and then passing to the quotient Q/G thanks to the constraint...

We test the consistency of data on nucleon structure functions with analyticity and Regge asymptotics virtual Compton amplitude. By solving a functional extremal problem, we derive an optimal lower bound maximum difference between exact amplitude dominant Reggeon contribution for energies $\nu$ above certain high value $\nu_h(Q^2)$. Considering in particular amplitudes $T_1^\inel(\nu, Q^2)$ pro...

A distributed real-time or embedded system consists of a large number of applications that interact with the physical environment and must satisfy end-to-end timing constraints. Applications in such system may offer different quality levels (such as higher or lower frame rates for a video conferencing application) across multiple factors or dimensions (such as frame rate, resolution). The end-u...

In the frame of random matrix theory, it was shown, that relaxation projection initial plane wave with vector q is described by equation motion memory function which corresponds to complex dynamical Young modulus E(ω). harmonic scalar model displacements absence energy dissipation, Ioffe-Regel crossover arises universally in amorphous systems dimension d≥3. Vibrations above are related diffusiv...

A bstract Non-topological solitons such as Q-balls and Q-shells have been studied for scalar fields invariant under global gauged U(1) symmetries. We generalize this frame-work to include a Proca mass the gauge boson, which can arise either from spontaneous symmetry breaking or via Stückelberg mechanism. heavy (light) boson leads reminiscent of (gauged) case, but intermediate values these exhib...