In this article, distributed interleave-division multiplexing space-time codes (dIDM-STCs) are applied for multi-user two-hop decode-and-forward (DF) relay networks. In case of decoding errors at the relays which propagate to the destination, severe performance degradations can occur as the original detection scheme for common IDM-STCs does not take any reliability information about the first h...

INTELLECTUAL CAPITAL MANAGEMENT FOR STRATEGIC BUSINESS: EVALUATION, MEASUREMENT AND OTIMIZATION THROUGH MULTICRITERIA DECISION METHOD Subject are: Strategic Business Policy Ricardo DaSilva CNPq Conselho Nacional de Desenvolvimento de C&T SEPN 507, Ed. CNPq, s. 111 70.774-300 Brasília, DF, Brazil [email protected] Feruccio Bilich UnB – Universidade de Brasília Campus Universitário, Asa Norte 70.9...

Let (Mt)t∈IR+ be a real locally integrable martingale starting from 0, with jumps of height one on a probability space (Ω, (Ft),F∞, P ), with the decomposition M = M c + X − ν, where (M c t )t∈IR+ is the continuous part of (Mt)t∈IR+ , (Xt)t∈IR+ is a point process on IR+ independent of (M c t )t∈IR+ , and (νt)t∈IR+ is the compensator of (Xt)t∈IR+ . Let β =< M c > denote the quadratic variation o...

Because of the infrared renormalons, it is difficult to get power accuracy in the traditional approach to the Wilson’s operator product expansion. Based on a new perturbative renormalization scheme for power-divergent operators, I propose a practical version of the OPE that allows to calculate power corrections to desired accuracy. The method is applied to the expansion of the vector-current co...

By a variant of the techniques introduced by the first two authors in [DF] to prove that second derivatives of solutions to the Monge-Ampère equation are locally in L logL, we obtain interior W 2,1+ε estimates.

I introduce a gauge invariant decomposition of the nucleon spin into quark helicity, quark orbital, and gluon contributions. The total quark (and hence the quark orbital) contribution is shown to be measurable through virtual Compton scattering in a special kinematic region where single quark scattering dominates. This deeply-virtual Compton scattering (DVCS) has much potential to unravel the q...

There are observational and theoretical indications that both the visible (stars) and the dark matter density distributions in elliptical galaxies increase significantly up to the galactic center. I present here some analytical results obtained with the aid of self–consistent, spherically symmetric two component galaxy models. These results suggest the possibility that this similar behavior cou...

We consider the problem of estimating the directions of arrival of multiple communication signals arriving at an uniform linear array. By considering the conjugate cyclic crosscorrelations of the sensor outputsand using a Bayesian framework, we propose a direction finding algorithm that allows us to estimate the directions of arrival for a more signals than sensors scenario. The algorithm does ...

Civil and Environmental Engineering, University of Brasilia, Brasilia, DF, Brazil b Earth & Environmental Engineering, Columbia Water Center, Columbia University, New York, NY, United States Civil and Environmental Engineering, Lehigh University, Bethlehem, United States Department of Civil Engineering, NOAA-Cooperative Remote Sensing Science and Technology Center, City University of New York, ...