Dear Pat, (01)
> On Sep 29, 2009, at 4:27 PM, Gunther Schadow wrote:
>
> > An object may have the property "maximum allowable temperature"
> >
> > That object would also have the property "actual temperature" at
> > any point in time.
> >
> > The object might never have the property "actual temperature"
> whose
> > quantity value is equal to its property "maximum allowable
> > temperature".
> >
> > Either way, maximum allowable temperature and actual temperature
> > are both special kinds of temperatures.
>
> Exactly. (02)
MW: Then I ask you how I know when I look at a temperature whether it is
a maximum allowable one or not. (03)
Regards (04)
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>
> Pat
>
> >
> > regards,
> > -Gunther
> >
> > Chris Partridge wrote:
> >> Gunther,
> >>
> >> Maximum allowable temperature is a disposition of the object.
> >> The object may reach never reach that temperature, or may reach
> it,
> >> even
> >> exceed it, but that does not have much, in itself, to do with
> the
> >> property.
> >>
> >> The property is something like: other things being equal, if you
> >> stay below
> >> this temperature the object (more often, a type of object) will
> >> operate as
> >> specified - if you go above it then it may not.
> >>
> >> (Allowable is probably not the best example, as one could try
> and
> >> cash this
> >> out by saying that one is defining two states that the object
> can
> >> be in -
> >> below (or equal) to the maximum and above the maximum. But that
> >> would ignore
> >> the intention that staying within the 'allowable' range should
> >> provide some
> >> guarantee of normal operation.)
> >>
> >> So, the object has (or does not have) this property whatever its
> >> actual
> >> temperature.
> >>
> >> I suppose one could argue that these are not quantities at all -
> >> but then (I
> >> am told) most useful engineering measures would be excluded.
> >>
> >> Regards,
> >> Chris Partridge
> >> Chief Ontologist
> >
> >
> >
> > --
> > Gunther Schadow, M.D., Ph.D.
> gschadow@xxxxxxxxxxxxxxx
> > Associate Professor Indiana University School of
> Informatics
> > Regenstrief Institute, Inc. Indiana University School of
> Medicine
> > tel:1(317)423-5521
> http://aurora.regenstrief.org
> >
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