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Träfflista för sökning "WFRF:(Mann Alexander) "

Search: WFRF:(Mann Alexander)

  • Result 1-50 of 486
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1.
  • Aad, G., et al. (author)
  • 2011
  • swepub:Mat__t (peer-reviewed)
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  • Brinkfeldt, Klas, et al. (author)
  • Modeling of SiC power modules with double sided cooling
  • 2014
  • In: 2014 15th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems, EuroSimE 2014. - : IEEE Computer Society. - 9781479947904
  • Conference paper (peer-reviewed)abstract
    • Silicon Carbide (SiC) based transistor devices have demonstrated higher efficiency switching operation compared to silicon-based, state-of-the-art solutions due to the superior electrical and thermal properties of the SiC material. The improved current density and thermal conductivity allows SiC-based power modules to be smaller than their silicon counterparts for comparable current densities. The active chip area can be reduced further by effectively cooling the devices. In this work, a new power module including SiC bipolar junction transistors (BJT) and diodes and integrated double sided cooling will be introduced. The target application of these modules is a new drive-train system for commercial electric vehicles.
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46.
  • Ferrari, Raffaele, et al. (author)
  • Frontotemporal dementia and its subtypes: a genome-wide association study.
  • 2014
  • In: Lancet Neurology. - 1474-4465. ; 13:7, s. 686-699
  • Journal article (peer-reviewed)abstract
    • Frontotemporal dementia (FTD) is a complex disorder characterised by a broad range of clinical manifestations, differential pathological signatures, and genetic variability. Mutations in three genes-MAPT, GRN, and C9orf72-have been associated with FTD. We sought to identify novel genetic risk loci associated with the disorder.
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47.
  • Serrano, L. M., et al. (author)
  • A low-eccentricity migration pathway for a 13-h-period Earth analogue in a four-planet system
  • 2022
  • In: Nature Astronomy. - : Springer Science and Business Media LLC. - 2397-3366. ; 6:6, s. 736-750
  • Journal article (peer-reviewed)abstract
    • It is commonly accepted that exoplanets with orbital periods shorter than one day, also known as ultra-short-period (USP) planets, formed further out within their natal protoplanetary disks before migrating to their current-day orbits via dynamical interactions. One of the most accepted theories suggests a violent scenario involving high-eccentricity migration followed by tidal circularization. Here we present the discovery of a four-planet system orbiting the bright (V = 10.5) K6 dwarf star TOI-500. The innermost planet is a transiting, Earth-sized USP planet with an orbital period of ~13 hours, a mass of 1.42 ± 0.18 M⊕, a radius of 1.166−0.058+0.061R⊕ and a mean density of 4.89−0.88+1.03gcm−3. Via Doppler spectroscopy, we discovered that the system hosts 3 outer planets on nearly circular orbits with periods of 6.6, 26.2 and 61.3 days and minimum masses of 5.03 ± 0.41 M⊕, 33.12 ± 0.88 M⊕ and 15.05−1.11+1.12M⊕, respectively. The presence of both a USP planet and a low-mass object on a 6.6-day orbit indicates that the architecture of this system can be explained via a scenario in which the planets started on low-eccentricity orbits then moved inwards through a quasi-static secular migration. Our numerical simulations show that this migration channel can bring TOI-500 b to its current location in 2 Gyr, starting from an initial orbit of 0.02 au. TOI-500 is the first four-planet system known to host a USP Earth analogue whose current architecture can be explained via a non-violent migration scenario.
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48.
  • Aad, G., et al. (author)
  • 2014
  • Journal article (peer-reviewed)
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49.
  • Aad, G., et al. (author)
  • 2014
  • In: Physical Review C (Nuclear Physics). - 0556-2813 .- 1089-490X. ; 90:4
  • Journal article (peer-reviewed)
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50.
  • Aad, G., et al. (author)
  • 2013
  • Journal article (peer-reviewed)
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  • Result 1-50 of 486
Type of publication
journal article (354)
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reports (1)
Type of content
peer-reviewed (476)
other academic/artistic (1)
Author/Editor
Adye, T. (456)
Aleksa, M. (456)
Alexander, G. (456)
Amelung, C. (456)
Anastopoulos, C. (456)
Annovi, A. (456)
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Antonelli, M. (456)
Arai, Y. (456)
Arnaez, O. (456)
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