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There exists a wide spectrum of coherency models for use in distributed shared memory (DSM) systems. The choice of model for an application should ideally be based on the application's data access patterns and phase changes. However, in current systems, most, if not all of the parameters of the coherency model are fixed in the underlying DSM system. This(More)
ProcessBase is an environment designed to support process modelling languages. This environment consists of a language, its interpreter and a persistent object store. Currently this environment supports concurrency through a multi-threading library, however, only a single interpreter instantiation exists as a supported architecture. ProcessBase is a simple(More)
The first neutron diffraction study of a single crystal containing uranyl peroxide nanoclusters is reported for pyrophosphate-functionalized Na 44 K 6 [(UO 2) 24 (O 2) 24 (P 2 O 7) 12 ][IO 3 ] 2 ·140H 2 O (1). Relative to earlier X-ray studies, neutron diffraction provides superior information concerning the positions of H atoms and lighter counterions.(More)
Recent accidents resulting in worker injury and radioactive contamination occurred due to pressurization of uranium yellowcake drums produced in the western U.S.A. The drums contained an X-ray amorphous reactive form of uranium oxide that may have contributed to the pressurization. Heating hydrated uranyl peroxides produced during in situ mining can produce(More)
The first neutron diffraction study of a single crystal containing uranyl peroxide nanoclusters is reported for pyrophosphate-functionalized Na44K6[(UO2)24(O2)24(P2O7)12][IO3]2·140H2O (1). Relative to earlier X-ray studies, neutron diffraction provides superior information concerning the positions of H atoms and lighter counterions. Hydrogen positions have(More)
The asymmetric unit in the crystal structure of the title compound, [Zn2(C16H14N2S2)2]2·0.18C2H6OS·0.82CH3OH, consists of two ordered bis{μ-2,2'-[(butane-2,3-diylidene)bis(azanylylidene)]dibenzenethiolato}dizinc(II) molecules and a disordered solvent combination at the same location which refined to 18.1 (7)% dimethyl sulfoxide and 81.9 (7)% methanol. The(More)
Time-to-market is a critical factor in the commercial success of new consumer devices. To minimise delays , system developers and third party software vendors must be able to test their applications before the hardware platform becomes available. Instruction Set Simulators (ISS's) underpin this early development by emulating new platforms on ordinary(More)