Graeme Robert Stewart

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The Large Hadron Collider (LHC) at CERN, the European Organisation for Nuclear Research, will produce unprecedented volumes of data when it starts operation in 2007. To provide for its computational needs, the LHC Computing Grid (LCG) is being deployed as a worldwide computational grid service, providing the middleware upon which the physics analysis for(More)
The fundamental challenges facing future electronics design is to address the decreasing – atomistic scale of transistor devices and to understand and predict the impact and statistical variability these have on design of circuits and systems. The EPSRC pilot project “Meeting the Design Challenges of nanoCMOS Electronics” (nanoCMOS) which began in October(More)
The detailed analysis of a ground-breaking sample of 100,000 n-Channel MOSFETs, simulated with the Glasgow 3D device simulator, has allowed the distribution of random discrete dopant induced threshold voltage fluctuations to be constructed based on underlying physical processes. The construction may also be statistically enhanced, allowing a significant(More)
A method is proposed to reduce the power used in the motion estimation stage of an FPGA based H.264 video encoder. Distinguishing it from other algorithms is its use of information generated during the rest of the encoding process, specifically, the intra prediction stage. Using the results of the intra prediction stage, a simple algorithm determines the(More)
The progressive scaling of complementary metal oxide semiconductor (CMOS) transistors drives the success of the global semiconductor industry. Detailed knowledge of transistor behaviour is necessary to overcome the many fundamental challenges faced by chip and systems designers. Grid technology has enabled the unavoidable statistical variations introduced(More)
The ScotGrid distributed Tier-2 now provides more that 4MSI2K and 500TB for LHC computing, which is spread across three sites at Durham, Edinburgh and Glasgow. Tier-2 sites have a dual role to play in the computing models of the LHC VOs. Firstly, their CPU resources are used for the generation of Monte Carlo event data. Secondly, the end user analysis data(More)
In the title compound, C(7)H(5)FO(2)·C(7)H(7)NO, a moderate-strength hydrogen bond is formed between the carboxyl group of one mol-ecule and the pyridine N atom of the other. The benzoic acid mol-ecule is observed to be disordered over two positions with the second orientation only 4% occupied. This disorder is also reflected in the presence of diffuse(More)
ScotGrid is a distributed Tier-2 centre in the UK with sites in Durham, Edinburgh and Glasgow. ScotGrid has undergone a huge expansion in hardware in anticipation of the LHC and now provides more than 4MSI2K and 500TB to the LHC VOs. Scaling up to this level of provision has brought many challenges to the Tier-2 and we show in this paper how we have adopted(More)
With perpetual need for examining new sensor structures for dosimetry, calorimetry and particle tracking experiments, many techniques were developed during the last couple of decades, which make studies of both microscopic and macroscopic detector properties possible. The conventional Transient Current Technique is a key tool for studying signal formation,(More)