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  • Open Access English
    Country: United Kingdom

    For many decades, the Gulf states’ significant oil reserves have rendered the region among the most important energy suppliers in the world, and there is similar potential for the region’s natural gas reserves. However, the Gulf states’ rapidly rising regional consumpti...

  • Other research product . 2004
    Open Access English
    Country: United Kingdom

    SEC Definitions of Proved Oil and Gas Reserves (Regulation S-X, Article 4) So much has recently been heard of these SEC definitions that we felt it would be useful to record precisely what they are. We realise that some readers of Forum will be able to quote them, prob...

  • Open Access English
    Authors: 
    Chris Huntingford; Rosie A. Fisher; Lina Mercado; Ben B. B. Booth; Stephen Sitch; Phil P. Harris; Peter M. Cox; Chris D. Jones; Richard A. Betts; Yadvinder Malhi; +3 more
    Country: United Kingdom

    Simulations with the Hadley Centre general circulation model (HadCM3), including carbon cycle model and forced by a 'business-as-usual' emissions scenario, predict a rapid loss of Amazonian rainforest from the middle of this century onwards. The robustness of this proje...

  • Open Access English
    Country: United Kingdom

    LNG projects are highly capital-intensive and in order to protect the investment’s return, the project developers traditionally covered all their future LNG production with sales and purchase agreements (SPAs). SPAs enabled them to share the risks – LNG sellers bore pri...

  • Open Access English
    Authors: 
    Jennifer C. Molloy;
    Country: United Kingdom

    Data provides the evidence for the published body of scientific knowledge, which is the foundation for all scientific progress. The more data is made openly available in a useful manner, the greater the level of transparency and reproducibility and hence the more effici...

  • Open Access English
    Authors: 
    Johan Ditmar; Steve McKeever; Alex Wilson;
    Country: United Kingdom

    This paper discusses a pair of synthesis algorithms that optimise a SystemC design to minimise area when targeting FPGAs. Each can significantly improve the synthesis of a high-level language construct, thus allowing a designer to concentrate more on an algorithm descri...

  • Other research product . 2007
    Open Access English
    Country: United Kingdom

    This paper looks at some long-term aspects of energy supply and use over the periods before and since the industrial revolution. It is intended to provide an overview and draw out some issues which deserve more sustained examination, not to give a definitive or comprehe...

  • Open Access English
    Country: United Kingdom

    In this note we introduce a construction which assigns to an arbitrary manifold bundle its fiberwise orientation covering. This is used to show that the zeta classes of non-oriented surface bundles are not divisible in the stable range.

  • Open Access English
    Authors: 
    Nick Peatfield; Boris Zilber;
    Country: United Kingdom

    A set of axioms is presented defining an ‘analytic Zariski structure’, as a generalisation of Hrushovski and Zilber’s Zariski structures. Some consequences of the axioms are explored. A simple example of a structure constructed using Hrushovski’s method of free amalgama...

  • Open Access English
    Authors: 
    Timothy C. Burness;
    Country: United Kingdom

    This is the first in a series of four papers on fixed point ratios in actions of finite classical groups. Our main result states that if G is a finite almost simple classical group and Ω is a faithful transitive non-subspace G-set then either fpr(x)≲|xG|−1...