Investigations are currently being conducted at Imperial College into the upward migration of radionuclides from a contaminated water table and their subsequent uptake by plant root systems. This programme includes both experimental studies and related mathematical modelling. Previous work has been primarily with lysimeters. However, these experiments are expensive and somewhat lengthy and the ...

Mid-latitude Tropospheric Ozone Columns from the MOZAIC program: climatology and interannual variability R. M. Zbinden, J.-P. Cammas, V. Thouret, P. Nedelec, F. Karcher, and P. Simon Laboratoire d’Aerologie, UMR5560, Toulouse, France CNRM, Meteo-France, Toulouse, France Received: 21 February 2005 – Accepted: 4 April 2005 – Published: 29 July 2005 Correspondence to: R. M. Zbinden ([email protected]...

Process engineers can be faced with the task of understanding and optimizing the performance of an existing liquid-liquid extraction (extraction) column. Often times, an extraction column has been operating many years, and the performance is not well understood by the personnel responsible for its operation. Since this technology is not treated comprehensively during most under-graduate Chemica...

Geophysical mass flows involve particles of different sizes, a property termed polydispersity. The granular column collapse is simplified experiment for studying transitional flows. Our research focuses on the role that polydispersity has velocity and runout distance dry immersed columns, undergoing numerical experimental study. results highlight does not have strong effect columns. On contrary...