The paper discusses the development of an IBM PC based tool, for calculating train braking distances for various train classes on a rail network. There is discussion on current industry practice and the limitations of that practice, the concept of the tool itself, including the assumptions made, the strategy adopted to minimise the risk of incorrect calculations, and the results of adopting tha...

A further commercially available encryption package for the IBM PC is analysed, and a simple breaking program is described.

Double-diffusive convection in a micropolar fluid layer heated and soluted from below in the presence of uniform rotation saturating a porous medium is theoretically investigated. An exact solution is obtained for a flat fluid layer contained between two free boundaries. To study the onset of convection, a linear stability analysis theory and normal mode analysis method have been used. For the ...

solute transport in unsaturated porous media can be viewed as a coupled phenomenon with waterand heat transport, together with mechanical behaviour of media. in this paper, solute transport is formulatedmathematically considering heat and water flow in deformable porous media. advection, dispersion anddiffusion of chemical species in the liquid phase are considered. convection and conduction fo...

GB is a zwitterionic, fully N-methyl-substituted derivative of Gly that is found in a large variety of microorganisms, higher plants, and animals (Rhodes and Hanson, 1993). At high concentrations, GB does not interfere with cytoplasmic functions and it efficiently stabilizes the structure and function of many macromolecules. Thus, it belongs to a group of compounds that are known collectively a...

GB is a zwitterionic, fully N-methyl-substituted derivative of Gly that is found in a large variety of microorganisms, higher plants, and animals (Rhodes and Hanson, 1993). At high concentrations, GB does not interfere with cytoplasmic functions and it efficiently stabilizes the structure and function of many macromolecules. Thus, it belongs to a group of compounds that are known collectively a...