Blar i Institutt for fysikk på tittel

Viser treff 2599-2618 av 2653

    • Validation of SSUSI-derived auroral electron densities: comparisons to EISCAT data 

      Bender, Stefan; Espy, Patrick Joseph; Paxton, Larry J. (Peer reviewed; Journal article, 2021)
      The coupling of the atmosphere to the space environment has become recognized as an important driver of atmospheric chemistry and dynamics. In order to quantify the effects of particle precipitation on the atmosphere, ...

    • Van der Waals interactions: Corrections from radiation in fluids 

      Waage, Magnus H.; Høye, Johan S. (Journal article; Peer reviewed, 2013)

    • Vapor deposited Cr-doped ZnS thin films: Towards optically pumped mid-infrared waveguide lasers 

      Karhu, Eric Andrew; Ildstad, Charles Rutherford; Poggio, Stefano; Furtula, Vedran; Tolstik, Nikolai; Sorokina, Irina T; BelBruno, Joseph; Gibson, Ursula (Journal article; Peer reviewed, 2016)
      Compact, affordable mid-IR lasers require the development of gain materials in waveguide form. We report on the high vacuum deposition of Cr:ZnS films with concentration ranging from 1018-1020 dopants/cm3 . At low ...

    • Variability of the Quasi Two-Day Wave in the Mesosphere 

      Mongstad, Eirik (Master thesis, 2013)
      The Quasi-Two-Day-Wave (QTDW) is examined through analysis of data given by the SKiYMET-radar at Dragvoll, Trondheim (63◦N,10◦E). Through spectral analysis the occurrence and generation mechanisms of the different wave ...

    • Variation of elastic energy shows reliable signal of upcoming catastrophic failure 

      Pradhan, Srutarshi; Kjellstadli, Jonas Tøgersen; Hansen, Alex (Journal article; Peer reviewed, 2019)
      We consider the Equal-Load-Sharing Fiber Bundle Model as a model for composite materials under stress and derive elastic energy and damage energy as a function of strain. With gradual increase of stress (or strain) the ...

    • Varying oxygen coverage on Cu55 and its effect on CO oxidation 

      Ma, Li; Akola, Jaakko (Journal article; Peer reviewed, 2019)
      Adsorption of molecular oxygen on a Cu55 cluster and the resulting oxidation effects have been investigated by spin-polarized density functional theory (DFT). The optimal structure for each Cu55O2N (N = 1–20) complex has ...

    • Vascular characterization of tumors growing in the chorioallantoic membrane 

      Bye, Inger (Master thesis, 2017)
      The chick chorioallantoic membrane (CAM) model has been widely used to study different biological and medical processes, including angiogenic response, tumor development and drug-delivery. Such studies can be achieved ...

    • Vela as the source of Galactic cosmic rays above 100 TeV 

      Bouyahiaoui, M.; Kachelriess, Michael; Semikoz, D. V. (Journal article, 2019)
      We model the contribution of the nearest young supernova remnant Vela to the local cosmic ray flux taking into account both the influence of the Local Superbubble and the effect of anisotropic diffusion. The magnetic field ...

    • Vela as the Source of Galactic Cosmic Rays above 100 TeV 

      Kachelriess, Michael; Semikoz, Dmitri; Bouyahiaoui, Makarim (Peer reviewed; Journal article, 2020)
      We modeled the contribution of the young supernova remant Vela to the local cosmic rays taking into account the effect of the Local superBubble and an anistropic diffusion. We recovered the knee observed in the CR spectrum ...

    • Velocity error induced by unevenly sampling wind radars 

      Ekern, Kjetil Landgraff (Master thesis, 2014)
      Measurements of atmospheric winds in the mesosphere and lower thermosphere (MLT)region using a SKiYMET radar started in Trondheim (63.4 N, 10.4 E) in September2012. This meteor radar utilizes the ionized trail from meteors ...

    • Versatile, cell and chip friendly method to gel alginate in microfluidic devices 

      Håti, Armend Gazmeno; Bassett, David; Ribe, Jonas Myren; Sikorski, Pawel; Weitz, David A.; Stokke, Bjørn Torger (Journal article, 2016)
      Alginate is used extensively in microfluidic devices to produce discrete beads or fibres at the microscale. Such structures may be used to encapsulate sensitive cargoes such as cells and biomolecules. On chip gelation of ...

    • Very sharp diffraction peak in nonglass-forming liquid with the formation of distorted tetraclusters 

      Koyama, Chihiro; Tahara, Shuta; Kohara, Shinji; Onodera, Yohei; Småbråten, Didrik Rene; Selbach, Sverre Magnus; Akola, Jaakko; Ishikawa, Takehiko; Masuno, Atsunobu; Mizuno, Akitoshi; Okada, Junpei T.; Watanabe, Yuki; Nakata, Yui; Ohara, Koji; Tamaru, Haruka; Oda, Hirohisa; Obayashi, Ippei; Hiraoka, Yasuyuki; Sakata, Osami (Peer reviewed; Journal article, 2020)
      Understanding the liquid structure provides information that is crucial to uncovering the nature of the glass-liquid transition. We apply an aerodynamic levitation technique and high-energy X-rays to liquid (l)-Er2O3 to ...

    • Very-High-Precision Calculations in Physics 

      Noreen, Amna (Doctoral thesis at NTNU, 2012, Doctoral thesis, 2012)

    • Vibration and Fluorescence Spectra of Porphyrin-Cored 2,2-Bis(methylol)-propionic Acid Dendrimers 

      Minaev, Boris; Lindgren, Mikael (Journal article; Peer reviewed, 2009)
      Bis-MPA dendron-coated free-base tetraphenylporphyrin and zinc-tetraphenyl-porphyrin (TPPH2 and TPPZn) were studied in comparison with simple porphyrins (H2P, ZnP) by theoretical simulation of their infrared, Raman and ...

    • Vindrør som læringsarena - Utformingen av en interaktiv utstillingsmodells betydning for elevers læring i grupper. 

      Vie, Hans Kristian Strandli (Master thesis, 2019)
      Masteroppgaven er en studie av en utstillingsmodell på et vitensenter og aktiviteten til ungdomsskoleelever rundt denne. Modellen blir kalt «Vindrøret» og er utstilt på Vitengarden på Nærbø. Bakgrunnen for studien er et ...

    • Viscous cosmology - Bulk viscosity in the cosmological context 

      Normann, Ben David (Master thesis, 2015)
      The main objective of this thesis has been to estimate the present value of the bulk viscosity of the cosmic fluid. The following list contains a summary of the main results found in the present work: -The bulk viscosity ...

    • Viscous Phenomena and Entropy Production in the Early Universe 

      Husdal, Lars (Doctoral theses at NTNU;2017:197, Doctoral thesis, 2017)
      During the very first fraction of a second after the Big Bang, the Universe were populated by all the particles in the Standard Model of elementary particles: From the massive top quark to the massless photons and gluons. ...

    • Visualizing Ferroelectric Domain Structures in ErMnO3 and Pb5Ge3O11 by Electron Microscopy 

      Kasper Aas Hunnestad (Master thesis, 2019)
      Ferroelektriske domenevegger har nylig tiltrukket økende oppmerksomhet som nye kandidater for funksjonelle 2D-systemer. Disse atomskarpe grensesnittene som kan flyttes, opprettes og fjernes med elektriske felt, kan brukes ...

    • VMAT for small cell lung cancer 

      Gjervan, Vera (Master thesis, 2015)
      Limited stage small cell lung cancer (SCLC-LS) is an aggressive cancer form affecting a relatively small group of patients. The prognosis for these patients is poor, and those who are treated with radiotherapy often develop ...

    • Voltage control of superconducting exchange interaction and anomalous Josephson effect 

      Ouassou, Jabir Ali; Linder, Jacob (Journal article; Peer reviewed, 2019)
      Exerting control over the magnetic exchange interaction in heterostructures is of both basic interest and has potential for use in spin-based applications relying on quantum effects. We show that the sign of the exchange ...