On 9/14/06, Robert Dodier <robert.dodier@gmail.com> wrote: > I am interested in the problem of communicating physical quantities, > e.g. between a web service and its client. To follow up on my previous message -- it appears that at present there is not a generally accepted conventional approach for working with physical quantities. However, it is a popular topic and there is a lot of material on the web. Here are a couple of links for items that seem useful in this context. "An Ontology for Engineering Mathematics" -- http://ksl.stanford.edu/knowledge-sharing/papers/engmath.html Written back in the 90's, but I think the conceptual stuff is still applicable. See also the associated Lisp code: http://www-ksl.stanford.edu/knowledge-sharing/ontologies/html/physical-quantities/physical-quantities.lisp.html UDUNITS -- library of functions for carrying out units conversions. http://www.unidata.ucar.edu/software/udunits/ Includes a lengthy list of conversion factors: http://www.unidata.ucar.edu/software/udunits/udunits.txt Hope this information is useful to someone! Robert DodierReceived on Saturday, 16 September 2006 19:18:31 UTC
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