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Browsing by Subject "General Materials Science"

Browsing by Subject "General Materials Science"

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  • Koziel, Slawomir; Bekasiewicz, Adrian (Institute of Electrical and Electronics Engineers (IEEE), 2020-04-13)
    The paper proposes a novel framework for accelerated re-design (dimension scaling) of antenna structures using inverse surrogates. The major contribution of the work is a sensitivity-based model identification procedure, which permits a significant ...
  • Ullah, Ubaid; Al-Hasan, Muath; Koziel, Slawomir; Mabrouk, Ismail Ben (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    In this paper, a multiple-input-multiple-output (MIMO) antenna featuring circular polarization diversity, and designed on a common coplanar ground is presented. The proposed antenna design utilizes a coplanar waveguide (CPW) feeding technique with three ...
  • Wallevik, Jon Elvar; Wallevik, Olafur Haralds (Elsevier BV, 2020-01)
    An increasing interest has emerged in correlating the output of the concrete mixing truck to values obtained by rotational rheometers. The output of the former has usually been the hydraulic pressure needed to turn the drum. In such research, experimental ...
  • Pietrenko-Dabrowska, Anna; Koziel, Slawomir; Al-Hasan, Mu'ath (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Over the recent years, surrogate modeling has been playing an increasing role in the design of antenna structures. The main incentive is to mitigate the issues related to high cost of electromagnetic (EM)-based procedures. Among the various techniques, ...
  • Koziel, Slawomir; Pietrenko-Dabrowska, Anna; Al-Hasan, Mu'ath (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Contemporary microwave design heavily relies on full-wave electromagnetic (EM) simulation tools. This is especially the case for miniaturized devices where EM cross-coupling effects cannot be adequately accounted for using equivalent network models. ...
  • Sultan, Muhammad Taha; Maraloiu, Adrian Valentin; Stavarache, Ionel; Gudmundsson, Jon Tomas; Manolescu, Andrei; Teodorescu, Valentin Serban; Ciurea, Magdalena Lidia; Svavarsson, Halldór Gudfinnur (Beilstein Institut, 2019-09-17)
    Multilayer structures comprising of SiO2/SiGe/SiO2 and containing SiGe nanoparticles were obtained by depositing SiO2 layers using reactive direct current magnetron sputtering (dcMS), whereas, Si and Ge were co-sputtered using dcMS and high-power impulse ...
  • Nemnes, G. A.; Mitran, T. L.; Manolescu, Andrei (Hindawi Limited, 2019-05-16)
    The electronic properties of graphene nanoflakes (GNFs) with embedded hexagonal boron nitride (hBN) domains are investigated by combined ab initio density functional theory calculations and machine-learning techniques. The energy gaps of the quasi-0D ...
  • Erlingsson, Sigurður Ingi; Bardarson, Jens H; Manolescu, Andrei (Beilstein Institut, 2018-04-12)
    In this paper we consider charge current generated by maintaining a temperature difference over a nanowire at zero voltage bias. For topological insulator nanowires in a perpendicular magnetic field the current can change sign as the temperature of one ...