Hardware imperfections can significantly reduce the performance of full-duplex wireless systems by introducing non-idealities and random effects that make it challenging to fully suppress self-interference. Previous research has mostly focused on analyzing the impact of hardware imperfections on full-duplex systems, based on simulations and theoretical models. In this paper, we follow a measure...

1. INTRODUCTION Porous journal bearings are a common and economic solution for lubrication applications where maintenance and access to the system are restricted or difficult. This work aims to provide the engineer with a validation of the theoretical model and simulation results put forward in an earlier study [1] with those obtained by recent experiments performed with industrially used beari...

We study the transport properties of the percolating cluster for two diierent geometries. For the usual parallel bar geometry, we study nite-size eeects and report evidence that in the innnite size limit the entire backbone contributes to the low current. For the geometry in which the voltage diierence is applied to two given points separated by a distance r (in a system of size L), we propose ...

In a data hiding communications scenario, geometrical attacks lead to a loss of reliable communications due to synchronization problems when the applied attack is unknown. In our previous work, information-theoretic analysis of this problem was performed for theoretic setups, i.e., when the length of communicated data sequences asymptotically approaches infinity. Assuming that the applied geome...

The work presented in this paper investigates the strength of moment-resisiting apex brackets cold-formed steel portal frames. results two previously reported full-scale frame tests, where frames failed through buckling bracket, were used to validate a finite element model that included material nonlinearity, geometric imperfections, and bolt bearing behaviour. From test as well results, import...

The random XORSAT problem deals with large random linear systems of Boolean variables. The difficulty of such problems is controlled by the ratio of number of equations to number of variables. It is known that in some range of values of this parameter, the space of solutions breaks into many disconnected clusters. Here we study precisely the corresponding geometrical organization. In particular...

This study presents a theoretical design study of a novel three-dimensional micromachined hemispherical shell antenna for ultra-wideband millimetre-wave imaging applications. The antenna is composed of a hemispherical metallic shell which is suspended on top of a high-resistivity silicon substrate using a thin silicon stem. The antenna exhibits two different operational modes and an exceptional...

Nowadays the automobile industry is becoming more and more demanding as far as quality is concerned. Within the wide variety of processes in which this quality must be ensured, those regarding the squeezing of the auto bodywork are especially important due to the fact that the quality of the resulting product is tested manually by experts, leading to inaccuracies of all types. In this paper, an...

0. Summary. This paper is concerned with the properties of convex cones and their dual cones generated by points randomly distributed on the surface of a d-sphere. For radially symmetric distributions on the points, the expected nGmber of k-faces and natural measure of the set of k-faces will be found. The expected number of vertices, or extreme points, of convex hulls of random points in E~ an...