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Showing 1 to 10 of 10 for “"SPK"”.
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A test-cell installation of a gas turbine engine to investigate the performance advantages of low aromatic fuel
… aromatic contents. Synthetic Para nic Kerosene (SPK) containing zero aromatics, and a petroleum{derived Jet A-1 fuel containing 19.0 % aromatics were the two test fuels incorporated to determine the e ect of aromatics on engine performance. Liner temperature measurements were attained via an …
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Characterization of mutant N², N²-dimethylguanosine-specific tRNA methyltransferases from Saccharomyces cerevisiae
… $\rm Gly\sp3\to Ser,\ Thr\sp⁾\to Ser,\ Ser\spk\to Leu,$ and Gly$\spڿڭto$ Arg. Sub-cloning and site-directed mutagenesis were employed and the single amino acid substitution, Ser$\spk\to$ Leu, was identified as the mutation responsible for inactivating m$\sbsp{2}{2}$Gtase. To elucidate the …
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A novel method to evaluate synthetic fuel options for gas turbines in terms of O-ring swelling
… the source of synthesised paraffinic kerosene (SPK). SPK typically contain iso paraffins and small quantities of normal paraffins. However, they do not contain heteroatomic species or aromatic compounds. Advantages of the use of F-T fuels over petroleum-derived fuels include outstanding …
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The effect of hydrocarbon exposure and temperature on the behaviour of elastomeric seals
… Jet A-1, synthesised paraffinic kerosene (SPK) and a variety of blends of pure components with SPK. These components were selected from aromatic species (monoaromatic, diaromatic and heterocyclic), cycloparaffins, aromatic oxygenates and other oxygenates. Aromatic species were blended at 8% …
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The effect of different chemical classes on the swelling of NBR O-rings in blends with synthetic paraffinic kerosene
… Tropsch-derived synthetic paraffinic kerosene (SPK) and pure compounds including isomers of n-, iso- and cyclic paraffins, aromatics and oxygenates. The paraffins were tested as neat components. With the aromatics and oxygenates, 8% (v/v) blends with coal-to-liquid (CTL) SPK were prepared to …
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Effect Of Intake Temperature And Boost Pressure On The Auto-Ignition Of Fuels With Different Cetane Numbers And Volatilities
… JP-8 (two blends with CN 50 & 31) and F-T SPK. Detailed analysis is made of the rate of heat release during the ignition delay period, to determine the effect of fuel volatility and CN on the auto-ignition process. A STAR-CD CFD model is applied to track the effect of intake temperature and …
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Life cycle assessment of greenhouse gas emissions and non-CO₂ combustion effects from alternative jet fuels
… jet fuel and synthetic paraffinic kerosene (SPK). The research expands upon the work of Wong (2008) by examining Fischer-Tropsch jet fuel from coal and biomass, and hydroprocessed renewable jet (HRJ) fuel from rapeseed, jatropha, algae and salicornia. Each fuel option is a "drop-in" …
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Multiscale phase-field approach to martensitic phase transformations that satisfies lattice instability conditions
… stress occurs first, however, in tensile loading SPK stress predicts the elastic instability truly.</p> <p>An scale-free phase-field model to martensitic phase transformations (PTs) at finite strains is developed as an essential generalization of models in Levitas et al. (2004); Idesman et al. …
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Significance of Protein Interactions in Mediating AF9 Function
… and has developed synthetic peptides (PFWT and SPK-111) capable of disrupting their interaction in vitro and in vivo. The peptides mimic the amino acid sequence of the AF9 binding domain within AF4. These peptides are toxic to MLL-AF4 and MLL-AF9 fusion harboring leukemic cell lines, suggesting …
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"I was in a position to dismantle it": Industrial Appropriations of William S. Burroughs
Industrial music, contains many extra-musical influences, not the least of which is literature, and, since the formation of Throbbing Gristle (1975), one of the most pervasive influences is the writer William S. Burroughs, specifically his famous cut-up method. Burroughs has often detailed his …