Wes Armour

Clustering procedures for the optimal selection of data sets from multiple crystals in macromolecular crystallography.

A systematic approach to the scaling and merging of data from multiple crystals in macromolecular crystallography is introduced and explained.

Limits on Fast Radio Bursts at 145 MHz with ARTEMIS, a real-time software backend

Fast Radio Bursts (FRBs), are millisecond radio signals that exhibit dispersion larger than what the Galactic electron density can account for. We have conducted a 1446 hour survey for Fast Radio Bursts (FRBs) at 145~MHz, covering a total of 4193 sq. deg on the sky. We used the UK station of the LOFAR radio telescope -- the Rawlings Array -- , accompanied for a majority of the time by the LOFAR station at Nan\c{c}ay, observing the same fields at the same frequency. Our real-time search backend, ARTEMIS, utilizes graphics processing units to search for pulses with dispersion measures up to 320 cm

Monte Carlo Simulation of the Semimetal-Insulator Phase Transition in Monolayer Graphene

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Visualization of membrane protein crystals in lipid cubic phase using X-ray imaging.

pc. Previous derived FRB rates from surveys around 1.4~GHz, and favoured FRB interpretations, motivated this survey, despite all previous detections occurring at higher dispersion measures. We detected no new FRBs above a signal-to-noise threshold of 10, leading to the most stringent upper limit yet on the FRB event rate at these frequencies: 29 sky

A polyphase filter for many-core architectures

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ARTEMIS: A real-time data processing pipeline for the detection of fast transients

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Commissioning of ALFABURST: Initial tests and results

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Graphene as a Lattice Field Theory

for 5~ms-duration pulses above 62~Jy. The non-detection could be due to scatter-broadening, limitations on the volume and time searched, or the shape of FRB flux density spectra. Assuming the latter and that FRBs are standard candles, the non-detection is compatible with the published FRB sky rate, if their spectra follow a power law with frequency (

Strong Interaction Effects at a Fermi Surface in a Model for Voltage-Biased Bilayer Graphene

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Commensal searches for extraterrestrial intelligence with Arecibo Observatory and the Green Bank Telescope

), with