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The antenna scattering matrix is based on a spherical vector wave expansion and contains a complete description of the matching, transmission, receiving, and scattering properties of an antenna. It is commonly utilized in near-field measurements and it can also be used to model MIMO antennas. Here, an approach based on the holomorphic properties of the antenna scattering matrix is used to derive p
Popular Abstract in Swedish Kunskap om intermetalliska föreningar och legeringar är avgörande för tekniksprång. Den senaste av dessa, den så kallade digitala revolutionen, började perioden för informationsåldern som kännetecknas av snabb informationsöverföring. Den ständiga utvecklingen av snabbare och mindre elektroniska apparater kommer med nackdelen av ökade mängder avfall, vilket innebär produKnowledge on intermetallic compounds and alloys is essential for technology leaps. The latest of these, the so-called digital revolution, started the period of the information age which is characterized by fast information transfer. The constant development of faster and smaller electronic devices comes with the drawback of increased amounts of waste, meaning products that used to by high-end tech
We formulate and solve a control problem where data are sent over a communication network that introduces random time delays. Past time delays are assumed known by the use of timestamps and the probability distribution of future delays are modeled with a Markov chain with continuous observation densities. We generalize previous results on LQG control of jump linear systems to cover this situation.
From newly obtained high-resolution, high signal-to-noise ratio spectra the abundances of the elements La and Eu have been determined over the stellar metallicity range -3
