Now showing items 2155-2174 of 7731

  • Enhanced light emission from top-emitting organic light-emitting diodes by optimizing surface plasmon polariton losses 

    Fuchs, Cornelius; Will, Paul-Anton; Wieczorek, Martin; Gather, Malte Christian; Hofmann, Simone; Reineke, Sebastian; Leo, Karl; Scholz, Reinhard (2015-12-11) - Journal article
    We demonstrate enhanced light extraction for monochrome top-emitting organic light-emitting diodes (OLEDs). The enhancement by a factor of 1.2 compared to a reference sample is caused by the use of a hole transport layer ...
  • Enhanced rock-slope failure following ice-sheet deglaciation : timing and causes 

    Ballantyne, Colin; Wilson, Peter; Gheorghiu, Delia; Rodés, Àngel (2014-06-14) - Journal article
    The temporal pattern of rock-slope failures (RSFs) following Late Pleistocene deglaciation on tectonically stable terrains is controversial: previous studies variously suggest (1) a rapid response due to removal of supporting ...
  • Enhanced single photon emission from positioned InP/GaInP quantum dots coupled to a confined Tamm-plasmon mode 

    Braun, T.; Baumann, V.; Iff, O.; Hoefling, S.; Schneider, C.; Kamp, M. (2015-01-26) - Journal article
    We report on the enhancement of the spontaneous emission in the visible red spectral range from site-controlled InP/GaInP quantum dots by resonant coupling to Tamm-plasmon modes confined beneath gold disks in a hybrid ...
  • Enhancement of redox stability and electrical conductivity by doping various metals on ceria, Ce1-xMxO2-δ (M=Ni, Cu, Co, Mn, Ti, Zr) 

    Myung, Jaeha; Shin, Tae Ho; Huang, Xiubing; Carins, George Michael; Irvine, John Thomas Sirr (2015-09-21) - Journal article
    Various metal oxide materials have been actively investigated to improve energy efficiency as exhaust-catalyst as well as electrodes in electrochemical devices such as fuel cells, ceramic sensors, photo-catalyst etc. ...
  • Enhancing student learning of two-level quantum systems with interactive simulations 

    Kohnle, Antje; Baily, Charles; Campbell, Anna; Korolkova, Natalia; Paetkau, Mark (2015-06) - Journal article
    The QuVis Quantum Mechanics Visualization project aims to address challenges of quantum mechanics instruction through the development of interactive simulations for the learning and teaching of quantum mechanics. In this ...
  • Enhancing the conductivity of crystalline polymer electrolytes 

    Lilley, Scott J. (University of St Andrews, 2007-11-30) - Thesis
    The AsF₆⁻ anion, in the crystalline polymer electrolyte PEO₆:LiAsF₆, was replaced with the larger N(SO₂CF₃)₂⁻ anion. This produced an increase in the room temperature ionic conductivity of 1.5 orders of magnitude. It is ...
  • Enhancing the emission directionality of organic light-emitting diodes by using photonic microstructures 

    Zhang, Shuyu; Turnbull, Graham A.; Samuel, Ifor David William (2013-11-21) - Journal article
    We report microstructured organic light-emitting diodes (OLEDs) with directional emission based on efficient solution-processable europium-OLEDs patterned by solvent assisted microcontact molding. The angle dependence of ...
  • Enhancing the photoluminescence quantum yields of blue-emitting cationic iridium(III) complexes bearing bisphosphine ligands 

    Rota Martir, Diego; Bansal, Ashu Kumar; Di Mascio, Vincent; Cordes, David Bradford; Henwood, Adam Francis; Slawin, Alexandra Martha Zoya; Kamer, Paul C J; Martínez-Sarti, Laura; Pertegás, Antonio; Bolink, Henk J.; Samuel, Ifor David William; Zysman-Colman, Eli (2015) - Journal article
    Herein we present a structure-property relationship study of thirteen cationic iridium (III) complexes of the form of [Ir(C^N)2(P^P)]PF6 in both solution and the solid state through systematic evaluation of six bisphosphine ...
  • An enigmatic pointlike feature within the HD 169142 transitional disk 

    Biller, Beth A.; Males, Jared; Rodigas, Timothy; Morzinski, Katie; Close, Laird M.; Juhász, Attila; Follette, Katherine B.; Lacour, Sylvestre; Benisty, Myriam; Sicilia-Aguilar, Aurora; Hinz, Philip M.; Weinberger, Alycia; Henning, Thomas; Pott, Jörg-Uwe; Bonnefoy, Mickaël; Köhler, Rainer (2014-08-20) - Journal article
    We report the detection of a faint pointlike feature possibly related to ongoing planet-formation in the disk of the transition disk star HD 169142. The pointlike feature has a Delta-mag(L) ∼ 6.4, at a separation of ∼ 0" ...
  • Ensuring each student reaches their potential : (2) transferability issues 

    Sibbett, Lorna Rosemary (2010-11-15) - Conference paper
    Isolation of knowledge within disciplines, or for students, within the confines of single taught modules, diminishes the learner’s richness of understanding. Whilst flexible degree programmes are attractive to prospective ...
  • Entanglement concentration with quantum nondemolition Hamiltonians 

    Tatham, Richard; Korolkova, Natalia (2014-01-09) - Journal article
    We devise and examine two procrustean entanglement concentration schemes using quantum nondemolition (QND) interaction Hamiltonians in the continuous variable regime, applicable for light, for atomic ensembles or in a ...
  • Entangling Remote Nuclear Spins Linked by a Chromophore 

    Schaffry, M.; Filidou, V.; Karlen, S. D.; Gauger, E. M.; Benjamin, S. C.; Anderson, H. L.; Ardavan, A.; Briggs, G. A. D.; Maeda, K.; Henbest, K. B.; Giustino, F.; Morton, J. J. L.; Lovett, B. W. (2010-05-21) - Journal article
    Molecular nanostructures may constitute the fabric of future quantum technologies, if their degrees of freedom can be fully harnessed. Ideally one might use nuclear spins as low-decoherence qubits and optical excitations ...
  • Entangling the whole by beam splitting a part 

    Croal, Callum; Peuntinger, Christian; Chille, Vanessa; Marquardt, Christoph; Leuchs, Gerd; Korolkova, Natalia; Mišta Jr., Ladislav (2015-11-04) - Journal article
    A beam splitter is a basic linear optical element appearing in many optics experiments and is frequently used as a continuous-variable entangler transforming a pair of input modes from a separable Gaussian state into an ...
  • Enter the dragon : the emerging Chinese approach to peacebuilding in Liberia 

    Kuo, Steven Chiun-Yi (University of St Andrews, 2013) - Thesis
    Critics of the liberal peace point out that the imposition of liberal democratic structures of governance through United Nations Peacekeeping Operations has not led to a sustainable peace being built. In reply, supporters ...
  • Entering the black hole: the Taliban, terrorism, and organised crime 

    Phillips, Matthew D.; Kamen, Emily A. (Centre for the Study of Terrorism and Political Violence, University of St Andrews, 2014-09-01) - Journal article
    Cooperation and imitation among crime and terror groups in recent years has given rise to a crime-terror nexus. A linear conceptualisation of a crime-terror spectrum, suggests that complete convergence of crime and terror ...
  • Environment and health in Central Asia: quantifying the determinants of child survival 

    Franz, Jennifer Sue (University of St Andrews, 2007-06-20) - Thesis
    The impact of environmental degradation on well-being is largely ignored in terms of economic costs of development. Due in large part to measurement difficulties, the environment in the daily welfare of the world's poorest ...
  • Environmental aspects of sustainability : SMEs and the role of the accountant 

    Spence, Laura J.; Agyemang, Gloria; Rinaldi, Leonardo (Association of Chartered Certified Accountants, 2012-07-23) - Report
    This report describes the potential for further widening SMP advice provision to include the topic of environmental sustainability. Sustainability and CSR have been identified as emergent key issues for the accountancy ...
  • Environmental Audit Committee report : preparations for the Johannesburg Summit 

    Sustainable Development Commission (Sustainable Development Commission, 2002-03-01) - Report
    This memorandum provides both an overview of recent UK performance on sustainable development, and highlights some particular conclusions about current UK performance, which we have drawn from our work to date.
  • Environmental complexity influences association network structure and network-based diffusion of foraging information in fish shoals 

    Webster, Michael Munro; Atton, Nicola; Hoppitt, William John Edward; Laland, Kevin Neville (2013-02) - Journal article
    Socially transmitted information can significantly affect the ways in which animals interact with their environments. We used network-based diffusion analysis, a novel and powerful tool for exploring information transmission, ...
  • Environmental constraints on the foraging behaviour, spatial usage and population sizes of albatrosses 

    Wakefield, Ewan D. (University of St Andrews, 2009) - Thesis
    Satellite-tracking of wide-ranging, apex marine predators, combined with remote-sensing, can be used to test ecological hypotheses and to estimate spatial abundance. I used this approach to quantify the habitat usage of ...