Now showing items 18006-18025 of 18073

    • X-ray Microprobe Investigation of Iron During a Simulated Silicon Feedstock Extraction Process 

      Bernardis, Sarah; Fakra, Sirine C.; Dal Martello, Elena; B. Larsen, Rune; Newman, Bonna K.; Fenning, David P.; Di Sabatino Lundberg, Marisa; Buonassisi, Tonio (Peer reviewed; Journal article, 2016)
      Elemental silicon is extracted through carbothermic reduction from silicon-bearing raw feedstock materials such as quartz and quartzites. We investigate the micron-scale distribution and valence state of iron, a deleterious ...
    • X-ray nanoscopy of a bulk heterojunction 

      Patil, Nilesh; Skjønsfjell, Eirik Torbjørn Bakken; Van den Brande, Niko; Chavez Panduro, Elvia Anabela; Claessens, Raf; Guizar-Sicairos, Manuel; Van Mele, Bruno; Breiby, Dag Werner (Journal article; Peer reviewed, 2016)
      Optimizing the morphology of bulk heterojunctions is known to significantly improve the photovoltaic performance of organic solar cells, but available quantitative imaging techniques are few and have severe limitations. ...
    • X-ray repair cross complementing protein 1 in base excision repair 

      Hanssen-Bauer, Audun; Solvang-Garten, Karin; Akbari, Mansour; Otterlei, Marit (Journal article; Peer reviewed, 2012)
      X-ray Repair Cross Complementing protein 1 (XRCC1) acts as a scaffolding protein in the converging base excision repair (BER) and single strand break repair (SSBR) pathways. XRCC1 also interacts with itself and rapidly ...
    • X-ray Studies of Carbon Dioxide Intercalation in Na-Fluorohectorite Clay at Near-Ambient Conditions 

      Hemmen, Henrik; Rolseth, Erlend G.; Fonseca, Davi de Miranda; Hansen, Elisabeth Lindbo; Fossum, Jon Otto; Plivelic, T (Journal article, 2012)
      We show experimentally that gaseous CO2 intercalates into the interlayer space of the synthetic smectite clay Na-fluorohectorite at conditions not too far from ambient. The mean interlayer repetition distance of the clay ...
    • X65 steel pipes subjected to combined stretching and bending 

      Kristoffersen, Martin; Børvik, Tore; Langseth, Magnus; Hopperstad, Odd Sture (Chapter, 2015)
      Subsea pipelines are occasionally struck and hooked by objects such as anchors or trawl gear. The initial denting followed by a potential hooking and displacement of the pipeline, with a simultaneous increase in tensile ...
    • Xandarovula patula (Gastropoda: Ovulidae) new to Scandinavia 

      Høisæter, Tore; Sneli, Jon-Arne; Schander, Christoffer; Rapp, Hans Tore; Berggren, Matz (Journal article; Peer reviewed, 2011)
      In August 2009 six specimens of the ovulid gastropod Xandarovula patula (Pennant, 1777) (formerly known as Simnia patula Pennant, 1777), were found in dredge samples from a locality west of Smögen in western Sweden (58°22′N ...
    • XPS Examination of the Oxide-Metal Interface of an Aluminum-Magnesium Alloy Containing Beryllium 

      Smith, Nicholas; Kvithyld, Anne; Tranell, Gabriella (Chapter, 2018)
      The addition of beryllium to high magnesium aluminum alloys has long been known to cause a significant decrease in the rate of alloy oxidation. A clear understanding of the fundamental mechanism behind this effect is still ...
    • Xylopsora canopeorum (Umbilicariaceae), a new lichen species from the canopy of Sequoia sempervirens 

      Bendiksby, Mika; Næsborg, Rikke Reese; Timdal, Einar (Journal article; Peer reviewed, 2018)
      Xylopsora canopeorum Timdal, Reese Næsborg & Bendiksby is described as a new species occupying the crowns of large Sequoia sempervirens trees in California, USA. The new species is supported by morphology, anatomy, secondary ...
    • Yang-Mills connections on quantum Heisenberg manifolds 

      Kang, Sooran; Luef, Franz; Judith, Packer (Journal article; Peer reviewed, 2020)
      We investigate critical points and minimizers of the Yang-Mills functional YM on quantum Heisenberg manifolds Dc µν, where the Yang-Mills functional is defined on the set of all compatible linear connections on finitely ...
    • Yb-Doped Fiber Lasers Operating in the Range of 1147-1200 nm 

      Dvoyrin, Vladislav; Medvedkov, OI; Sorokina, Irina T (Chapter, 2012)
      Pump source brightness and heat production per unit fiber length were found to be the critical parameters for the realized and investigated Yb-doped fiber lasers operating in the range of 1147-1200 nm.
    • Yb-Tm energy transfer in Y-codoped fibers 

      Klimentov, Dmitry; Sorokina, Irina T; Dvoyrin, Vladislav; Halder, Arindam; paul, mukul; Das, Shyamal; Bhadra, Shyamal; Pal, Mrinmay (Chapter, 2013)
      Experimental investigation of Yb-Tm energy transfer process in Yb/Tm-doped fibers with Y-codoping provided a fairly high energy transfer efficiency of 50 %, making lasers based on these glass fibers attractive for diode-pumping ...
    • YDFL Operating in 1150-1200-nm Spectral Domain 

      Dvoyrin, Vladislav; Medvedkov, OI; Sorokina, Irina T (Journal article; Peer reviewed, 2013)
      A family of high-power Yb-doped fiber lasers operated in the range of 1150–1180 nm with output powers of up to 35 W and optical efficiencies up to 60% is realized. Operation at 1200 nm is also demonstrated. Amplified ...
    • Yoga for children and young people’s mental health and well-being: research review and reflections on the mental health potentials of yoga 

      Hagen, Ingunn; Nayar, Usha S. (Journal article; Peer reviewed, 2014)
      This article discusses yoga as a potential tool for children to deal with stress and regulate themselves. Yoga provides training of mind and body to bring emotional balance. We argue that children and young people need ...
    • Yoga, change and embodied enlightenment 

      Langøien, Lars Jørun (Journal article; Peer reviewed, 2012)
      Though it has been claimed that modern yoga retains little of its origins of religious austerity, I will argue that even if yoga as a physical practice has taken a strong position among the modern fitness trends, there are ...
    • ‘You are inferior!’ Revisiting the expressivist argument 

      Hofmann, Bjørn (Journal article, 2017)
      According to the expressivist argument the choice to use biotechnologies to prevent the birth of individuals with specific disabilities is an expression of disvalue for existing people with this disability. The argument ...
    • You Just Keep on Pushing My Love over the Borderline: A Rejoinder 

      Simpson, Daniel; Rue, Håvard; Riebler, Andrea Ingeborg; Martins, Thiago Guerrera; Sørbye, Sigrunn Holbek (Journal article; Peer reviewed, 2017)
      The entire reason that we wrote this paper was to provide a concrete object around which to focus a broader discussion about prior choice and we are extremely grateful to the editorial team at Statistical Science for this ...
    • You learn as long as you drill; research synthesis from the Longyearbyen CO2 Laboratory, Svalbard, Norway. 

      Olaussen, Snorre; Senger, Kim; Braathen, Alvar; Grundvåg, Sten-Andreas; Mørk, Atle (Journal article; Peer reviewed, 2019)
      From 2007 to 2015, eight wells were drilled and fully cored to test the feasibility of storing CO2 emitted from the coal-fueled power plant in Longyearbyen, Svalbard. The drilling campaign identified three water-bearing ...
    • Young blood rejuvenates old bodies: a call for reflection when moving from mice to men 

      Hofmann, Bjørn (Journal article; Peer reviewed, 2018)
      Connecting the circulatory system of old and young mice (parabiosis) is documented to have rejuvenating effects on cells, tissues, organs, and functions. A wide range of benefits are envisioned. Blood-based rejuvenation ...
    • Young children's television viewing and the quality of their interactions with parents: A prospective community study 

      Skaug, Silje; Englund, Kjellrun Thora; Wichstrøm, Lars (Journal article; Peer reviewed, 2018)
      Television is one of the most commonly viewed forms of media by children throughout the world. Excessive television viewing can influence the quality of children's relationships and interactions with their parents. We ...