| 1. |
- Adcox, K, et al.
(författare)
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PHENIX detector overview
- 2003
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Ingår i: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. - 0167-5087. ; 499:2-3, s. 469-479
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Tidskriftsartikel (refereegranskat)abstract
- The PHENIX detector is designed to perform a broad study of A-A, p-A, and p-p collisions to investigate nuclear matter under extreme conditions. A wide variety of probes, sensitive to all timescales, are used to study systematic variations with species and energy as well as to measure the spin structure of the nucleon. Designing for the needs of the heavy-ion and polarized-proton programs has produced a detector with unparalleled capabilities. PHENIX measures electron and muon pairs, photons, and hadrons with excellent energy and momentum resolution. The detector consists of a large number of subsystems that are discussed in other papers in this volume. The overall design parameters of the detector are presented. (C) 2002 Elsevier Science B.V. All rights reserved.
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| 2. |
- Hawkes, N. C., et al.
(författare)
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Observation of zero current density in the core of JET discharges with lower hybrid heating and current drive
- 2001
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 8711:11, s. art. no.-115001
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Tidskriftsartikel (refereegranskat)abstract
- Simultaneous current ramping and application of lower hybrid heating and current drive (LHCD) have produced a region with zero current density within measurement errors in the core (r/a less than or equal to 0.2) of JET tokamak optimized shear discharges. The reduction of core current density is consistent with a simple physical explanation and numerical simulations of radial current diffusion including the effects of LHCD. However, the core current density is clamped at zero, indicating the existence of a physical mechanism which prevents it from becoming negative.
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| 3. |
- Conway, B. A., et al.
(författare)
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Production of exopolysaccharide by Burkholderia cenocepacia results in altered cell-surface interactions and altered bacterial clearance in mice
- 2004
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Ingår i: J Infect Dis. ; 190:5, s. 957-66
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Tidskriftsartikel (refereegranskat)abstract
- Despite the characterization of some Burkholderia cepacia complex exopolysaccharides (EPSs), little is known about the role of EPSs in the pathogenicity of B. cepacia complex organisms. We describe 2 Burkholderia cenocepacia (genomovar III) isolates obtained from a patient with cystic fibrosis (CF): the nonmucoid isolate C8963 and the mucoid isolate C9343. Both isolates had identical random amplified polymorphic DNA patterns. C9343 produced a capsule composed of the EPSs PS-I and PS-II, as well as alpha -1,6-glucan. These isolates exhibited several phenotypic differences: C8963 synthesized octanoyl-homoserine lactone and produced biofilms, but C9343 did not; in a mouse model of pulmonary infection, C8963 was cleared more rapidly than was C9343; and C9343 interacted poorly with macrophages and neutrophils, compared with C8963, suggesting that the C9343 capsule interfered with cell-surface interactions. Overproduction of EPS by C9343 resulted in a mucoid appearance and interfered with cell-surface interactions and clearance in an animal model. This mucoid colonial appearance could enhance the persistence and virulence of this important CF-related pathogen.
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| 4. |
- Conway, S., et al.
(författare)
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Large eddy simulation of the flow through the blades of a swirl generator
- 2000
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Ingår i: International Journal of Heat and Fluid Flow. - 0142-727X .- 1879-2278. ; 21:5, s. 664-673
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Tidskriftsartikel (refereegranskat)abstract
- Subsonic turbulent flow between the blades of a swirl generator is considered using large eddy simulations (LES). The boundary layer exhibits transition in the upstream parts of the blade. Further downstream, the Row separates both on the suction and the pressure surfaces. In the boundary layer, one may note the streaky vortices. In addition, due to the blade surface curvature large, time-dependent streamwise vortices are formed. The wake of the blades also contains large scale, time-dependent structures. These phenomena are captured directly by LES. In our study, we use two different subgrid scale (SGS) models: the first model is an implicit model and the second is a novel dynamic model dubbed the dynamic divergence model (DDM). The effects of the SGS model and the grid resolution are also investigated.
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| 5. |
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| 6. |
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| 7. |
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| 8. |
- Krischbaum, T.T., et al.
(författare)
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Towards the event horizon - the vicinity of AGN at micro-arcsecond resolution
- 2004
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Ingår i: in "Proceedings of the 7th European VLBI Network Symposium", Oct. 2004, Toledo, eds. R. Bachiller, F. Colomer, J.F. Desmurs, P. de Vicente, Obs. Astronómico Nacional, Alcala de Henares, Spain. ; , s. 15-18
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Pagels, A., et al.
(författare)
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Millimetre VLBI monitoring of AGN with sub-milliarcsecond resolution
- 2004
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Ingår i: in "Proceedings of the 7th European VLBI Network Symposium", Oct. 2004, Toledo, eds. R. Bachiller, F. Colomer, J.F. Desmurs, P. de Vicente, Obs. Astronómico Nacional, Alcala de Henares, Spain. ; , s. 7-10
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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