Blar i NTNU Open på forfatter "Hennum, Endre Asheim"
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A new algorithm for remote sensing mesopause temperatures using the hydroxyl airlgow
Hennum, Endre Asheim (Master thesis, 2013)Ground based measurements of the hydroxyl airglow started in Trondheim (63.4 N, 10.4 E) 20. November 2012 using a linear InGaAs PDA detector covering the ∼1450-1650 nm wavelength range. The instrument have suc- cessfully ... -
Coupling in the middle atmosphere related to the 2013 major sudden stratospheric warming
De Wit, Rosmarie Johanna; Hibbins, Robert; Espy, Patrick Joseph; Hennum, Endre Asheim (Journal article; Peer reviewed, 2015)The previously reported observation of anomalous eastward gravity wave forcing at mesopause heights around the onset of the January 2013 major sudden stratospheric warming (SSW) over Trondheim, Norway (63° N, 10° E), is ... -
Effect of microstructure on precipitation of β-Mg2Si during cooling of Al-Mg- Si alloys
Hennum, Endre Asheim (Doctoral theses at NTNU;2024:228, Doctoral thesis, 2024)Processing of Al-Mg-Si alloys requires tight control of the various secondary Mg-Si phases that form during the processing steps. In this regard, the cooling stage after homogenisation is a crucial step because of the ... -
Effect of Microstructure on the Precipitation of β-Mg2Si during Cooling after Homogenisation of Al-Mg-Si Alloys
Hennum, Endre Asheim; Marthinsen, Knut; Tundal, Ulf Håkon (Peer reviewed; Journal article, 2024)For Al-Mg-Si alloys, cooling after homogenisation is a crucial step because the precipitation of the equilibrium β-Mg2Si phase determines the processing capabilities in subsequent steps, as well as the subsequent precipitation ...