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Source reconstruction by far-field data for imaging of defects in frequency selective radomes

In this paper, an inverse source reconstruction method with great potential in radome diagnostics is presented. Defects, e.g. seams in large radomes, and lattice dislocations in frequency selective surface (FSS) radomes, are inevitable, and their electrical effects demand analysis. Here, defects in a frequency selective radome are analyzed with a method based on an integral formulation. Several fa

Innovative solution for heat recovery of ventilation air in older apartment buildings - with low intervention affecting the residents

Buildings today account for 40% of the world’s primary energy use and 24% of the greenhouse gas emissions. Reducing the energy use in buildings is an important measures to reduce energy dependency and greenhouse gas emissions. In Sweden, there are roughly 2 500 000 dwellings in multifamily houses and single family houses. There is a need to address the energy use within the existing dwellings; esp

Reasoning about opinion dynamics in social networks

This paper introduces a logic to reason about a well-known model of opinion dynamics in socialnetworks initially developed by Morris DeGroot as well as Keith Lehrer and Carl Wagner. The proposed logic is an extension of Lukasiewicz' famous fuzzy logic with additional equational expressivity, modal operators, machinery from hybrid logic, and dynamic modalities. The model of opinion dynamics in soci

Is Iran Creating Its Own State Within Iraq?

Given the strength of nationalist sentiment across all Iraqi sects and the broad-based recognition of Sistani as a force for national unity, it will be difficult for Shia PMU groups to form a quasi-state in parallel to the Iraqi government once Isis is dislodged. In the eventuality of such a political outgrowth, the PMUs are bound to lose Sistani’s backing, and with it their legitimacy in the eyes