This paper proposes an LMI-based approach for studying the stability of feedback interconnections of a finite dimensional LTI system and a nonlinear element that consists of several identical scalar nonlinearities that have restrictions on their sector and slope. The results are based on the integral quadratic constraint stability analysis framework and other recent results that give a sharp ch...

A core element of the recent Common Agricultural Policy reform is to decouple payments that are merely linked to production from 2005 on. These subsidies are classified as environmental harmful by OECD. An agricultural sector model, using a modified version of the positive mathematical programming method, depicts the political, natural, and structural complexity of Austrian farming. Environment...

Collaborative applications offers significant benefits in business sector. Usually, team members need to use several systems to carry out their tasks. What these users need is an environment which permits them to carry out these tasks automatically, considering the flow of information between the different systems and offering interoperability and composition features. Nowadays, Web Services ha...

Multi-beam antenna arrays have important applications in the field of communications and radar. The reconfigurable design problem is to find the element in a sector pattern main beam with side lobes. The same excitation amplitudes applied to the array with zero-phase should be in a high directivity, low side lobe pencil shaped main beam. This paper presents a new method of designing a reconfigu...

The Non-Abelian finite group PSL2(7) is the only simple subgroup of SU(3) with a complex three-dimensional irreducible representation. It has two maximal subgroups, S4 which, along with its own A4 subgroup, has been successfully applied in numerous models of flavor, as well as the 21 element Frobenius group Z7⋊Z3, which has gained much less attention. We show that it can also be used to generat...

Wireless networks have become a key element in healthcare institutions for streamlining access to clinical information. With the advent of wireless technology, handheld devices such as PDAs, pagers and Pocket PCs are now being deployed into modern hospital systems. However, putting confidential data on the airwaves using wireless technology introduces significant risk and adds a new level of th...