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We study arrays of mechanical oscillators in the quantum domain and demonstrate how the motions of distant oscillators can be entangled without the need for control of individual oscillators and without a direct interaction between them. These oscillators are thought of as being members of an array of nanoelectromechanical resonators with a voltage being(More)
Patterns of soil copper contamination have been examined in the vicinity of a copper rod rolling plant in Prescot, Merseyside, UK. The site, established in 1975, was found to possess clear patterns of soil copper contamination, with the highest levels of HNO3 and water-extractable fractions encountered in the factory grounds adjacent to the location of the(More)
Army millimeter wave radar systems designers impose ever-increasing restrictions on tube volume, weight, and cost while at the same time requiring improved tube life and reliability. The bulkiest portion of a millimeter wave tube is comprised of the thermionic electron gun and the beam focusing magnet. The thermionic electron gun is often the source of tube(More)
We investigate Arctic tropospheric composition using ground-based Fourier transform infrared (FTIR) solar absorption spectra, recorded at the Polar Environment Atmospheric Research Laboratory (PEARL, Eureka, Nunavut, Canada, 8005 N, 8642W) and at Thule (Greenland, 7653 N,−6874W) from 2008 to 2012. The target species, carbon monoxide (CO), hydrogen cyanide(More)
Experiments were conducted to investigate the effects of single and multiple metal contamination (Cd, Pb, Zn, Sb, Cu) on Scots pine seedlings colonised by ectomycorrhizal (ECM) fungi from natural soil inoculum. Seedlings were grown in either contaminated field soil from the site of a chemical accident, soils amended with five metals contaminating the site,(More)
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