Now showing items 662-681 of 1360

  • Jet-nebulizer-spray coated copper zinc tin sulphide film for low cost platinum-free electrocatalyst in solar cells 

    David, K; Sudhagar, P; Ravi, D; Selvaraj, P; Zh.Karazhanov, S; Sundaram, S (Elsevier, 2018-03-01)
    The copper zinc tin sulphide (CZTS) alloy is a promising p-type earth abundant alloy that received profound attention as an electron driven dark catalyst in electrocatalytic reduction reaction. We report about fabrication ...
  • Joule heating effects in nanoscale carbon-based memory devices 

    Bachmann, TA; Alexeev, AM; Koelmans, WW; Zipoli, F; Ott, AK; Dou, C; Ferrari, AC; Nagareddy, VK; Craciun, MF; Jonnalagadda, VP; Curioni, A; Sebastian, A; Eleftheriou, E; Wright, CD (Institute of Electrical and Electronics Engineers (IEEE), 2016-12-08)
    One of the emerging candidates to bridge the gap between fast but volatile DRAM and non-volatile but slow storage devices is tetrahedral amorphous carbon (ta-C) based memory [1]-[3]. This offers a very good scalability, ...
  • Klein tunneling, contact doping, and pn-interfaces in gated suspended graphene 

    Laitinen, Antti; Paraoanu, G.S.; Oksanen, Mika; Craciun, Monica F.; Russo, Saverio; Sonin, Edouard; Hakonen, Pertti (arXiv.org, 2015)
    The inherent asymmetry of the electric transport in graphene is attributed to Klein tunneling across barriers defined by pn-interfaces between positively and negatively charged regions. By combining conductance and shot ...
  • L2 optimal decentralised static output feedback stabilisation of a network of dynamical systems 

    Prathyush, P. Menon; Edwards, Christopher; Postlethwaite, I (Elsevier, 2014-02)
    In this paper global L2 stabilisation of a network of dynamical systems is attained by local decentralised static output feedback control. The proposed synthesis procedure guarantees an upper bound on the achievable L 2 ...
  • A laboratory study into a novel, retrofittable rainwater harvesting system 

    Melville-Shreeve, Peter; Horstman, Chris; Memon, Fayyaz; Ward, Sarah; Butler, David (SCIENCEDOMAIN International, 2015)
    Rainwater harvesting (RWH) in the UK is an under-utilised technology that is often cited as a simple, low cost solution to a wide number of pressures associated with our water resources. For example, Kellagher set out a ...
  • Laboratórios Abertos 2018 

    Simao, D; Neves, A (Departamento de Química, Instituto Superior Técnico, Universidade de Lisboa, 2018-02-18)
    The Open Labs 2018 book is a collection of lectures and experiments that were made available to secondary and elementary schools that visited the Chemical Engineering Department of the Instituto Superior Técnico of the ...
  • Large-area functionalized CVD graphene for work function matched transparent electrodes 

    Bointon, Thomas H.; Jones, GF; De Sanctis, A; Hill-Pearce, R; Craciun, Monica F.; Russo, Saverio (Nature Publishing Group, 2015-11-09)
    The efficiency of flexible photovoltaic and organic light emitting devices is heavily dependent on the availability of flexible and transparent conductors with at least a similar workfunction to that of Indium Tin Oxide. ...
  • Large-scale manufacturing of helical auxetic yarns using a novel semi-coextrusion process 

    Zhang, G; Ghita, OR; Lin, C; Evans, K (SAGE Publications, 2017-08-17)
    This paper introduces a novel extrusion process for manufacturing helical auxetic yarn (HAY). A range of semi-coextruded HAYs have been manufactured in a cost-effective, consistent and readily usable form. The semi-coextruded ...
  • Lateral loading and response for a tall building in the non-seismic doldrums 

    Brownjohn, James (Elsevier, 2005-10)
    The situation for building design against wind and earthquake effects in Singapore is apparently unique. There is no seismic design code as there is no local seismicity, yet the effects of significant regional earthquakes ...
  • Leak Detection and Localization through Demand Components Calibration 

    Sanz, G; Pérez, R; Kapelan, Zoran; Savic, Dragan (American Society of Civil Engineers, 2015-09-21)
    Success in the application of any model-based methodology (e.g., design, control, supervision) highly depends on the availability of a well-calibrated model. The calibration of water distribution networks needs to be ...
  • Learn++ for robust object tracking 

    Zheng, F; Shao, L; Brownjohn, J; Racic, V (British Machine Vision Conference, 2014-09)
    In this paper, a Learn++ (LPP) tracker is proposed to efficiently select specific classifiers for robust and long-term object tracking. In contrast to previous online methods, LPP tracker dynamically maintains a set of ...
  • Lessons from monitoring the performance of highway bridges 

    Brownjohn, James; Moyo, P; Omenzetter, P; Chakraborty, S (Wiley, 2005)
    Monitoring programs on four very different highway bridges originating from a range of requirements related to calibration of numerical models, assessment of load capacity and long term tracking of performance are ...
  • Lessons Learned from 3 Years of Failure: Validating an FMEA with Historical Failure Data 

    Kenny, CJ; Findlay, D; Thies, PR; Shek, J; Lazakis, I (EWTEC, 2017-08-27)
    Device reliability is often considered essential to the performance of a wave energy converter. Developers may undertake a Failure Mode and Effects Analysis (FMEA) as a design process to evaluate the high priority failure ...
  • Lexicographic bottleneck mixed-model assembly line balancing problem: artificial bee colony and tabu search approaches with optimised parameters 

    Buyukozkan, Kadir; Kucukkoc, Ibrahim; Satoglu, Sule Itir; Zhang, David Z. (Elsevier, 2016-05-15)
    The lexicographic bottleneck assembly line balancing problem is a recently introduced problem which aims at obtaining a smooth workload distribution among workstations. This is achieved hierarchically. The workload of the ...
  • Life cycle assessment of energy consumption and environmental emissions for cornstalk-based ethyl levulinate 

    Wang, Z; Li, Z; Lei, T; Yang, M; Qi, T; Lin, L; Xin, X; Ajayebi, A; Yang, Y; He, X; Yan, X (Elsevier, 2016)
    This study analysed the sustainability of fuel-ethyl levulinate (EL) production along with furfural, as a by-product, from cornstalk in China. A life cycle assessment (LCA) was conducted using the SimaPro software to ...
  • Life cycle environmental impacts of cornstalk briquette fuel in China 

    Wang, Z; Lei, T; Yang, M; Li, Z; Qi, T; Xin, X; He, X; Ajayebi, A; Yan, X (Elsevier, 2017-02-14)
    The use of agricultural residues to produce biomass briquette fuel (BBF) can reduce waste of resources and consumption of fossil fuels. We report the first detailed environmental impact assessment of cornstalk-based BBF ...
  • Life on the Edge: Characterising the Edges of Mutually Non-dominating Sets 

    Everson, Richard M.; Walker, David J.; Fieldsend, Jonathan E. (MIT Press, 2014)
    Multi-objective optimisation yields an estimated Pareto front of mutually nondominating solutions, but with more than three objectives understanding the relationships between solutions is challenging. Natural solutions to ...
  • Life-cycle energy use and greenhouse gas emissions analysis for bio-liquid jet fuel from open pond-based micro-algae under China conditions 

    Ou, X; Yan, X; Zhang, X; Zhang, X (MDPI, 2013-09-23)
    A life-cycle analysis (LCA) of greenhouse gas (GHG) emissions and energy use was performed to study bio-jet fuel (BJF) production from micro-algae grown in open ponds under Chinese conditions using the Tsinghua University ...
  • Light-emitting diodes by band-structure engineering in van der Waals heterostructures. 

    Withers, F; Del Pozo-Zamudio, O; Mishchenko, A; Rooney, AP; Gholinia, A; Watanabe, K; Taniguchi, T; Haigh, SJ; Geim, AK; Tartakovskii, AI; Novoselov, KS (Nature Publishing Group, 2015-02-02)
    The advent of graphene and related 2D materials has recently led to a new technology: heterostructures based on these atomically thin crystals. The paradigm proved itself extremely versatile and led to rapid demonstration ...
  • A lightweight and support-free design method for selective laser melting 

    Li, Z; Zhang, DZ; Dong, P; Kucukkoc, I (Springer Verlag (Germany), 2016-10-25)
    Topology optimisation is an effective approach to design extreme lightweight components. However, most of the resulted optimum lightweight components usually have complex structures which cannot be produced successfully ...