Introduction In this contribution, we present a multi-channel T/R coil for use in a 9.4T animal scanner system. Each coil element comprises a composite right/left-handed (CRLH) metamaterial transmission line (MTL). Eight of these elements were arranged in a circular manner to constitute a multi channel coil. MTLs offer the feature of a homogenous current distribution along the line when they ar...

Twelve subjects were classified as left-handed (LH) or right-handed (RH) using Annett's hand dominance classification. Motor unit recordings were obtained from the first dorsal interosseous (FDI) muscle of each hand using a quadrifilar needle electrode. Firing occurrences of individual motor units were then identified and the firing rates of all motor units recorded during the contraction were ...

We calculate the baryon asymmetry of the Universe in thermal leptogenesis beyond the usual lightest right-handed (RH) neutrino dominated scenario (N1DS) and in particular beyond the hierarchical limit (HL), M1 ≪ M2 ≪ M3, for the RH neutrino mass spectrum. After providing some orientation among the large variety of models, we first revisit the central role of the N1DS, with new insights on the d...

The representation of the seesaw orthogonal matrix in the complex plane establishes a graphical correspondence between neutrino mass models and geometrical configurations, particularly useful to study relevant aspects of leptogenesis. We first derive the CP asymmetry bound for hierarchical heavy neutrinos and then an expression for the effective leptogenesis phase, determining the conditions fo...

In this paper a metamaterial-inspired antenna with high gain and good directivity is designed. Based on the concept of composite right/left-handed transmission line (CRLH-TL), the proposed antenna is realized based on three leakage wave unit cell and a left handed circular ring slot incorporated on the surface. The maximum achievable gain at the resonant frequency of 5.6 GHz is 6.933 dBi, and t...

Abstract We investigate the possibility that right-handed (RH) sneutrinos and gravitinos can coexist explain dark matter (DM) problem. compare extensions of minimal supersymmetric standard model (MSSM) next-to-MSSM (NMSSM) adding RH neutrinos superfields, with special emphasis on latter. If gravitino is lightest particle (LSP) sneutrino next-to-LSP (NLSP), heavier decays to former plus left-han...