A combined method for calculating the trajectories of suspended particles

© 2016, Allerton Press, Inc.A combined method for calculating the trajectories of suspended particles in the hydrodynamic velocity fields is proposed. The method utilizes capabilities of existing CFD codes and parallel computing on a computer with a graphics card that supports CUDA technology. The software package that implements the method is described

Thermal radiation processes

We discuss the different physical processes that are important to understand the thermal X-ray emission and absorption spectra of the diffuse gas in clusters of galaxies and the warm-hot intergalactic medium. The ionisation balance, line and continuum emission and absorption properties are reviewed and several practical examples are given that illustrate the most important diagnostic features in the X-ray spectra.Comment: 37 pages, 16 figures, accepted for publication in Space Science Reviews, special issue "Clusters of galaxies: beyond the thermal view", Editor J.S. Kaastra, Chapter 9; work done by an international team at the International Space Science Institute (ISSI), Bern, organised by J.S. Kaastra, A.M. Bykov, S. Schindler & J.A.M. Bleeke

A combined method for calculating the trajectories of suspended particles

© 2016, Allerton Press, Inc.A combined method for calculating the trajectories of suspended particles in the hydrodynamic velocity fields is proposed. The method utilizes capabilities of existing CFD codes and parallel computing on a computer with a graphics card that supports CUDA technology. The software package that implements the method is described

A combined method for calculating the trajectories of suspended particles

© 2016, Allerton Press, Inc.A combined method for calculating the trajectories of suspended particles in the hydrodynamic velocity fields is proposed. The method utilizes capabilities of existing CFD codes and parallel computing on a computer with a graphics card that supports CUDA technology. The software package that implements the method is described

A combined method for calculating the trajectories of suspended particles

© 2016, Allerton Press, Inc.A combined method for calculating the trajectories of suspended particles in the hydrodynamic velocity fields is proposed. The method utilizes capabilities of existing CFD codes and parallel computing on a computer with a graphics card that supports CUDA technology. The software package that implements the method is described

The possibilities of magnetic resonance imaging in the diagnostics of complications after metal-on-metal hip arthroplasty

Objective: to find adverse periprosthetic local tissue reactions after metal-on-metal hip arthroplasty with ASR XL heads. Material and methods: 119 patients with 134 ASR XL head - Corail prostheses were treated in 2007-2009. The results were studied in 94 cases (105 prostheses) - 84%. Average follow-up time consisted 62 ± 3 months. MRI was performed in 12 patients (13 hips) who had clinical nonsatisfaction. Obtained data were compared with 21 MRI (24 hips) of controlled group with good and perfect clinical results. Results. We found variations of normal periprosthetic tissue condition. Adverse reactions were identified in 10 cases. To improve the quality of pictures we developed special MRI adjustments and regimes of work. Conclusion: MRI diagnostics is indicated for the patients with metal-on-metal total hip arthroplasty in order to identify adverse local tissue reactions. The improvement of picture quality needs special adjustment of MRI equipment