Now showing items 1-20 of 4750

    • µSR study of Al-0.67%Mg-0.77%Si alloys 

      Nishimura, Katsuhiko; Matsuda, Kenji; Komaki, R; Nunomura, Norio; Wenner, Sigurd; Holmestad, Randi; Matsuzaki, Teiichiro; Watanabe, Isao; Pratt, Francis L.; Marioara, Calin Daniel (Journal article; Peer reviewed, 2014)
      Zero-field muon spin relaxation measurements were carried out with Al-0.67%Mg- 0.77%Si alloys in the temperature range from 20 K to 300 K. Observed relaxation spectra were compared with the relaxation functions calculated ...
    • 1.9 micron Tm3+-doped germanate fiber laser source for Si-processing 

      Dvoyrin, Vladislav; Sorokina, Irina T; Okhotnikov, Oleg; Mashinsky, Valery M.; Ischakova, Lyudmila D.; Dianov, Evgenii M; Khopin, Vladimir F.; Guryanov, Aleksey N. (Chapter, 2011)
      We report development of a novel Tm3+ -doped fiber laser source at 1.86 μm based on highly nonlinear 55GeO2-45SiO2 dispersion shifted fiber, applicable to 3D-volume microprocessing of Si.
    • 10 nm deep, sub-nanoliter fluidic nanochannels on germanium for attenuated total reflection infrared (ATR-IR) spectroscopy 

      Sriram, K.K.; Nayak, Simantini; Pengel, Stefanie; Chou, Chia-Fu; Erbe, Andreas (Journal article; Peer reviewed, 2017)
      The fabrication of sub-nanoliter fluidic channels is demonstrated, with merely 10 nm depth on germanium, using conventional semiconductor device fabrication methods and a polymer assisted room-temperature sealing method. ...
    • 134Ba diffusion in polycrystalline BaMO3 (M = Ti, Zr, Ce) 

      Sazinas, Rokas; Sakaguchi, Isao; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2017)
      Cation diffusion in functional oxide materials is of fundamental interest, particularly in relation to interdiffusion of cations in thin film heterostructures and chemical stability of materials in high temperature ...
    • 1D oxide nanostructures from chemical solutions 

      Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2014)
      Nanotechnology has motivated a tremendous effort to grow free standing or hierarchical nanomaterials such as nanowires and nanorods. Bottom-up approaches based on chemistry are an important approach to nanomaterials, and ...
    • 1H, 13C, 15N resonance assignment of the chitin-active lytic polysaccharide monooxygenase BlLPMO10A from Bacillus licheniformis 

      Courtade, Gaston; Balzer, Simone; Forsberg, Zarah; Vaaje-Kolstad, Gustav; Eijsink, Vincent; Aachmann, Finn Lillelund (Journal article; Peer reviewed, 2015)
      The chitin-active 19.2 kDa lytic polysaccharide monooxygenase BlLPMO10A from Bacillus licheniformis has been isotopically labeled and recombinantly expressed. In this paper, we report the 1H, 13C, 15N resonance assignment ...
    • 1H NMR metabolic profiling of cod (Gadus morhua) larvae: potential effects of temperature and diet composition during early developmental stages 

      Chauton, Matilde Skogen; Galloway, Trine Falck; Kjørsvik, Elin; Størseth, Trond Røvik; Puvanendran, Velmurugu; van der Meeren, Terje; Karlsen, Ørjan; Rønnestad, Ivar; Hamre, Kristin (Journal article; Peer reviewed, 2015)
      Marine aquaculture offers a great source of protein for the increasing human population, and farming of, for example, Atlantic salmon is a global industry. Atlantic cod farming however, is an example of a promising industry ...
    • 1 Watt femtosecond mid-IR Cr:ZnS laser 

      Sorokin, Evgeni; Tolstik, Nikolai; Sorokina, Irina T (Journal article; Peer reviewed, 2013)
      A room-temperature Kerr-Lens modelocked (KLM) Cr:ZnS laser generates <70 fs pulses duration (about eight optical cycles) with 5.6 nJ pulse energy and over 100 nm FWHM spectral width at 105-157 MHz repetition rates. The ...
    • 2.4 μm dual-comb spectroscopy 

      Bernhardt, B; Sorokin, Evgeni; Jacquet, P; Thon, R; Becker, T; Sorokina, Irina T; Hansch, TW; Picque, Nathalie (Chapter, 2010)
      A proof-of-principle experiment of mid-infrared frequency comb Fourier transform spectroscopy is carried out with two interfering Cr2+:ZnSe femtosecond oscillators, emitting around 2400 nm. Spectra of acetylene are measured ...
    • 2D-Fourieranalyse av strekkindusert endring i kollagenstruktur 

      Myhre, Frøydis Johanne Nystedt (Master thesis, 2009)
    • 3D aligned-carbon-nanotubes@Li2FeSiO4 arrays as high rate capability cathodes for Li-ion batteries 

      Zhou, Haitao; Lou, Fengliu; Vullum, Per Erik; Einarsrud, Mari-Ann; Chen, De; Vullum-Bruer, Fride (Journal article; Peer reviewed, 2013-09-27)
      3D aligned-carbon-nanotubes (ACNTs)@Li2FeSiO4 nanocomposite arrays on Al foil were developed as cathode materials for Li-ion batteries. The ACNTs were grown directly on an Al foil by a chemical vapor deposition method to ...
    • 3D carbon/polyaniline nanostructures for energy storage 

      Huang, Fan (Doktoravhandlinger ved NTNU, 1503-8181; 2011:215, Doctoral thesis, 2011)
      Among various types of electrical energy storage devices, supercapacitors (high power but low energy) and batteries (high energy but low power) are extensively studied. Present work aims to develop an electrode material ...
    • 3D-EPI with parallel imaging acceleration along two Axis: Evaluated with Phantom Study and BOLD fMRI 

      Vaksdal, Martin (Master thesis, 2013)
      The function of the human brain has for many years been an intriguing field of research, and has led to the discovery of functional MRI (fMRI). fMRI is dependent on high spatial and temporal resolution to acquire detailed ...
    • 3D modelling of β'' in Al-Mg-Si: towards an atomistic level ab initio based examination of a full precipitate enclosed in a host lattice 

      Ehlers, Flemming J H; Dumoulin, Stephane; Holmestad, Randi (Journal article, 2014)
      We extend a first principles based hierarchical multi-scale model scheme for describing a fully coherent precipitate in a host lattice to 3D simulations. As our test system, the needle-shaped main hardening Al–Mg–Si alloy ...
    • 3W Raman Soliton Tunable between 2-2.2 µm in Tm-Doped Fiber MOPA 

      Dvoyrin, Vladislav; Klimentov, Dmitry; Sorokina, Irina T (Chapter, 2013)
      The simple and compact Tm-doped fiber MOPA generates tunable between 2-2.2 µm Raman solitons with average power up to 3W. Pulses as short as 130 fs and energy up to 38 nJ were demonstrated.
    • 4d/5d Transition Metals in Perovskite Cathode Materials 

      Øygarden, Vegar (Doktoravhandlinger ved NTNU, 1503-8181; 2013:131, Doctoral thesis, 2013)
      Solid oxide fuel cells (SOFCs) have the potential to convert chemical energy to electrical energy in an efficient and environmentally friendly manner. The high operational temperatures of the first generation of SOFCs ...
    • 5 W Supercontinuum Generation at 1.9-2.5 μm from a Tm-Doped All-Fiber MOPA Laser 

      Dvoyrin, Vladislav; Sorokina, Irina T (Chapter, 2013)
      We report a simple method of generating flat-top high power (5W) supercontinuum from an all-silica-fiber Tm-MOPA laser emitting in the interesting for applications 1.96-2.48 μm range (at -5 dB level), covering transparency ...
    • 6.8 W all-fiber supercontinuum source at 1.9-2.5 um 

      Dvoyrin, Vladislav; Sorokina, Irina T (Journal article; Peer reviewed, 2014)
      We report a simple method of generating a spectrally flat and high average power spectral density (up to 14 mW/nm) optical supercontinuum in the 1.95–2.5 μm range covering a transparency window of the atmosphere. The ...
    • 6-Phosphofructokinase and ribulose-5-phosphate 3-epimerase in methylotrophic Bacillus methanolicus ribulose monophosphate cycle 

      Le, Simone Balzer; Heggset, Tonje Marita Bjerkan; Haugen, Tone; Nærdal, Ingemar; Brautaset, Trygve (Journal article; Peer reviewed, 2017)
      d-Ribulose-5-phosphate-3-epimerase (RPE) and 6-phosphofructokinase (PFK) catalyse two reactions in the ribulose monophosphate (RuMP) cycle in Bacillus methanolicus. The B. methanolicus wild-type strain MGA3 possesses two ...
    • A 2D sediment bed morphodynamics model for turbulent, non-Newtonian, particle-loaded flows 

      Busch, Alexander; Khatibi, Milad; Johansen, Stein Tore; Time, Rune Wiggo (Chapter, 2017)
      In petroleum drilling, cuttings transport problems, i.e. an accumulation of drilled of solids in the wellbore, are a major contributor to well downtime and have therefore been extensively researched over the years, both ...