Download Advances in Information Technologies for Electromagnetics by Alessandra Esposito (auth.), Luciano Tarricone, Alessandra PDF

By Alessandra Esposito (auth.), Luciano Tarricone, Alessandra Esposito (eds.)

Advances in info applied sciences for Electromagnetics bargains a huge landscape on lately completed and most likely accessible advances in electromagnetics with leading edge IT applied sciences.

Simple instructional chapters introduce the reader to leading edge applied sciences, reminiscent of parallel and dispensed computing, object-oriented applied sciences, grid computing, semantic grids, agent established computing and service-oriented architectures.

On such bases, quite a few EM purposes is proposed: 1) parallel FDTD codes (both for antenna research and for metamaterial applications), 2) grid computing for computational EM (CEM) (with functions to antenna arrays, instant and remote-sensing platforms) three) cellular brokers for parametric CEM modeling four) complex/hybrid EM software program environments (with functions to planar circuits, quasi-optical systems,…) five) semantic grids for CAE of antennas arrays.

This approach the reader, after studying from very schematic tutorials the main suitable gains of IT instruments, has an instantaneous feeling in their influence on day-by-day EM research.

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An ABox for the same domain could populate the “Antenna” and “Vendor” concepts respectively with the instances “VT300” and “Kathrein”. They can be supposed to be contingent: the production of that specific model of antenna may cease and the vendor may change its business goals. 3 focuses on the ABox. 2 A Model for Reality: The TBox Fig. 3-1 describes a simple model, with four concepts: “Antenna”, “Aperture Antenna”, “Dipole” and “Vendor”. The role named “isProducerOf ” links the two concepts “Vendor” and “Antenna”.

E. they are the specific, concrete instances a concept is made of. Indeed, the ABox contains the so-called membership assertions, as, for example, the concept assertion: RectangularApertureArrayAntenna (VT30) says that the model VT30 is an array of rectangular antennas. The role assertion: isProducerOf (Kathrein, VT300) says that the vendor Kathrein produces the antenna VT300. 38 Chapter 3 Constructors and axioms exist for the ABox too. VT300 collects all antennas having at least one VT300 element.

Indeed, DL may exhibit much more complex reasoning capabilities, by means of operators allowing to express concepts, constraints and dependencies which reflect the human model of reality. Hidden knowledge is inferred by using DL operators and reasoning capabilities depend on which set of operators a specific DL provides. The expressiveness is higher when more operators are available, with a consequent increase in the reasoning computational complexity. For this reason, when choosing a DL, a tradeoff between expressiveness and complexity must be found.

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