Alumina membranes filled with mesoporous silica, either nanowires or nanotubes, have been prepared. The orientation of the mesopores relative to the alumina host can be controlled by varying the aging environment.

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Publication informationSurface and Coatings Technology,: 4941-4947Publisher Elsevier Item record/more information http://hdl.handle.net/10197/5258 Publisher's statementThis is the author's version of a work that was accepted for publication in Surface and Coatings Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Surface and Coatings Technology, In conclusion, a number of the surface modifications conducted have a beneficial affect on the wear resistance of Ti6Al4V. The process is also likely applicable to other metal/metal alloys such as CoCr, NiTi and stainless steels. Furthermore, the chemical-free nature and ambient temperature conditions concerned afford this process the potential to act as an attractive alternative to some of the more problematic high temperature approaches currently in use.

Abstract.In several countries, the allocation of university places to students is handled by a Central Applications Office at a national level, An algorithm based upon a constrained form of the wellknown Stable Marriage Problem is presented for optimum assignment of places to students in the sense that their actual entry standards and the sum of their preferences for the courses assigned are optimised subject to the constraints imposed by the minimum entry standards and the number of places available. A method for the reduction of the size of large problems is also given.