Now showing items 2230-2249 of 8197

  • Ends of semigroups 

    Craik, Simon (University of St Andrews, 2013) - Thesis
    The aim of this thesis is to understand the algebraic structure of a semigroup by studying the geometric properties of its Cayley graph. We define the notion of the partial order of ends of the Cayley graph of a semigroup. ...
  • Ends of semigroups 

    Craik, S.; Gray, R.; Kilibarda, V.; Mitchell, J. D.; Ruskuc, N. (2016-07-27) - Journal article
    We define the notion of the partial order of ends of the Cayley graph of a semigroup. We prove that the structure of the ends of a semigroup is invariant under change of finite generating set and at the same time is inherited ...
  • Enduring legacy of a toxic fan via episodic redistribution of California gold mining debris 

    Singer, Michael Bliss; Aalto, Rolf; James, L. Allan; Kilham, Nina E.; Higson, John Lee; Ghoshal, Subhajit (2013) - Journal article
    The interrelationships between hydrologically driven evolution of legacy landscapes downstream of major mining districts and the contamination of lowland ecosystems are poorly understood over centennial time scales. Here, ...
  • Enduring voice recognition in bonobos 

    Keenan, Sumir; Mathevon, Nicolas; Stevens, Jeroen M. G.; Guéry, Jean Pascal; Zuberbühler, Klaus; Levréro, Florence (2016-02-25) - Journal article
    Long-term social recognition is vital for species with complex social networks, where familiar individuals can encounter one another after long periods of separation. For non-human primates who live in dense forest ...
  • Enemy within the gates : reasons for the invasive success of a guppy population (Poecilia reticulata) in Trinidad 

    Sievers, Caya (University of St Andrews, 2010) - Thesis
    The invasion of individuals into new habitats can pose a major threat to native species and to biodiversity itself. However, the consequences of invasions for native populations that are not fully reproductively isolated ...
  • An energy aware protocol for cyclic monitoring wireless sensor networks 

    Khemapech, Ittipong; Miller, Alan Henry David; Duncan, Ishbel Mary Macdonald (IEEE, 2013) - Conference item
    The Power & Reliability Aware Protocol (PoRAP) has been developed to provide efficient communication by means of energy conservation without sacrificing reliability. This has been achieved using direct communication, ...
  • Energy band diagram of device-grade silicon nanocrystals 

    Macias-Montero, M; Askari, S; Mitra, S; Rocks, C; Ni, Chengsheng; Svrcek, V; Connor, Paul Alexander; Maguire, P; Irvine, John Thomas Sirr; Mariotti, D (2016-03-17) - Journal article
    Device grade silicon nanocrystals (NCs) are synthesized using an atmospheric-pressure plasma technique. The Si NCs have a small and well defined size of about 2.3 nm. The synthesis system allows for the direct creation of ...
  • The energy budget of stellar magnetic fields 

    See, Wyke Chun Victor; Jardine, Moira Mary; Vidotto, Aline; Donati, J.-F.; Folsom, C. P.; Boro Saikia, S.; Bouvier, J.; Fares, Rim; Gregory, Scott; Hussain, Gaitee Ara Jaffer; Jeffers, Sandra Victoria; Marsden, S. C.; Morin, J.; Moutou, C.; do Nascimento, J. D.; Petit, P.; Rosén, L.; Waite, I. A. (2015-11-11) - Journal article
    Spectropolarimetric observations have been used to map stellar magnetic fields, many of which display strong bands of azimuthal fields that are toroidal. A number of explanations have been proposed to explain how such ...
  • Energy dependence of radioluminescence spectra from strontium titanate 

    Wang, Y.; Zhao, Y.; Zhang, Z.; Zhao, C.; Wu, X.; Finch, A.A.; Townsend, P.D. (2015-10) - Journal article
    Abstract X-ray excited luminescence spectra of strontium titanate are reported over the temperature range from 20-300 K. The range includes several crystalline phases, each with different emission spectra. The signals are ...
  • Energy dissipation and resolution of steep gradients in one-dimensional Burgers flows 

    Tran, Chuong Van; Dritschel, David Gerard (2010-03) - Journal article
    Traveling-wave solutions of the inviscid Burgers equation having smooth initial wave profiles of suitable shapes are known to develop shocks (infinite gradients) in finite times. Such singular solutions are characterized ...
  • Energy from waste potential in Scotland : quantifying the contribution energy from waste could make to Scotland’s energy needs 

    Sustainable Development Commission Scotland (Sustainable Development Commission, 2010-04) - Report
    Report to the Scottish Government quantifying the contribution energy from waste could make to Scotland’s energy needs.
  • Energy politics in the Arctic : Resources, climate change and shipping 

    McCauley, Darren; Rehner, Robert Wilhelm Michael; Ryabova, Maria (Arctic Research Centre, 2015-01-05) - Report
  • Energy security, equality and justice 

    Jenkins, Kirsten Elizabeth Harrison; McCauley, Darren (2015-04-01) - Journal item
  • Energy talk, temporality, and belonging in austerity Greece 

    Knight, Daniel Martyn (2016-03-10) - Journal article
    Dramatic changes in the energy landscape provide a lens through which to understand local perceptions of temporality, modernity, and belonging in austerity Greece. Re-launched in 2011, the European Union supported solar ...
  • Energy usage of UDP and DCCP over 802.11n 

    Abu-Tair, M.; Bhatti, S. N. (IEEE, 2014-05-13) - Conference item
    We show that the Datagram Congestion Control Protocol (DCCP) provides ~10% - ~40% greater energy efficiency than the User Datagram Protocol (UDP) in a wireless LAN (WLAN) client. Our empirical evaluation uses a testbed ...
  • Energy-efficient sensing in wireless sensor networks using compressed sensing 

    Razzaque, Mohammad Abdur; Dobson, Simon Andrew (2014-02-12) - Journal article
    Sensing of the application environment is the main purpose of a wireless sensor network. Most existing energy management strategies and compression techniques assume that the sensing operation consumes significantly less ...
  • Engage for change : the role of public engagement in climate change policy 

    Creasy, Stella; Gavelin, Karin; Fisher, Helen; Holmes, Lucy; Desai, Maya (Sustainable Development Commission, 2007-09) - Report
    In recent years the British Government has stated explicitly its determination that citizens should contribute to the policy making process within all levels of government. The Sustainable Development Commission invited ...
  • Engagement definitions 

    Sustainable Development Commission (Sustainable Development Commission, 2007-12-19) - Report
    Definitions of engagement terms and methods.
  • Engaging multimedia leisure for people with dementia 

    Alm, Norman; Astell, Arlene Jean; Gowans, Gary; Dye, Richard; Ellis, Maggie P; Vaughan, Philip; Riley, Philipa (2009) - Journal article
    Dementia is the loss of cognitive abilities, particularly the use of working (short-term) memory, usually as a result of Alzheimer’s disease or stroke. Dementia occurs primarily in older people, and while it does not affect ...
  • Engineering blue fluorescent bulk emitters for OLEDs : triplet harvesting by green phosphors 

    Hofmann, Simone; Hummert, Markus; Scholz, Reinhard; Luschtinetz, Regina; Murawski, Caroline; Will, Paul Anton; Hintschich, Susanne; Alex, Jörg; Jankus, Vygintas; Monkman, Andrew P; Lüssem, Björn; Leo, Karl; Gather, Malte Christian (2014-04-08) - Journal article
    Triplet harvesting in organic light-emitting diodes (OLEDs) from a blue fluorescent to a green phosphorescent emitter is important for the development of highly efficient white OLEDs for lighting applications. Here, we ...