This paper presents a theoretical analysis of the recently realized tuneable coupler for superconducting phase qubits (R. C. Bialczak et al., Ref. 11). The coupling can be turned off by compensating a negative mutual inductance with a tuneable Josephson inductance. The main coupling in this system is of the XX type and can be zeroed exactly, while there is also a small undesired contribution of...

By radiating the power in the direction of choice, electronicallyswitched directional (ESD) antennas can reduce network contention and avoid packet loss. There exists some ESD antennas for wireless sensor networks, but so far researchers have mainly evaluated their directionality. There are no studies regarding the link dynamics of ESD antennas, in particular not for indoor deployments and othe...

Résumé. Trouver les liens manquants dans un grand réseau social est une tâche difficile, car ces réseaux sont peu denses, et les liens peuvent correspondre à des environnements structurels variés. Dans cet article, nous décrivons RankMerging, une méthode d’apprentissage supervisé simple pour combiner l’information obtenue par différentes méthodes de classement. Afin d’illustrer son intérêt, nou...

We reconstruct an n-dimensional convex polytope from the knowledge of its directional moments up to a certain order. The directional moments are related to the projection of the polytope vertices on a particular direction. To extract the vertex coordinates from the moment information we combine established numerical algorithms such as generalized eigenvalue computation and linear interval inter...

− The paper describes the systems, the standards and the procedures developed at IEN for the precise measurement of ac voltages in the millivolt ranges. Two different methods based on resistive dividers and wideband transformers have been developed and are applied for the measurements of respectively the ac-dc transfer difference and the ac voltages down to 1 mV.

In this paper, a four-element microstrip antenna array is presented. The array is composed of Wilkinson power dividers which act as feed network along with Dolph-Chebyshev distribution and fouridentical patch antenna elements. The array elements are properly designed to have a compact size and constant gain against frequency. The simulated results show good agreement with the measured results f...

THIS paper focuses on MIMO Power Line Communication (PLC) to provide increased performance. In MIMO PLC, appropriate coupling methods are necessary in order to enable the effective injection of the signal through the broad band PLC channel so that high data rates can be achieved [1], [2], [3]. In the literature, different kind of couplers are proposed [4],[5]. In this paper, we want to characte...

Direct Sequence (DS) Code Division Multiple Access (CDMA) systems are considered for a variety of wireless applications and services because DS-CDMA enables the transmission of multimedia messages such as voice, data and video. The performance of Quasisynchronous DS-CDMA (QSCDMA) communication system with a maximal ratio combiner (MRC) over a frequency selective time non-selective multipath Gen...