This ontology defines a set of properties which may be used for reprenting physical quantities. Each is an RDF Property which realtes a quantity to a number which expreses the quantity in that expressed that quntity in the given unit. :bed ex:length _:a. _a: m 2. Property chaining is the equivalent of unit multiplication. Inverse properties correspond to reciprocal units. Because conventional signs for units are very case-sensitive, this ontology breaks from the normal convention that all property localnames begin with lowercase. See also http://www-ksl.stanford.edu/knowledge-sharing/papers/engmath.html
unA provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).
The local unique identifier C is used to demonstrate the providers
available for An Ontology for Units of Measure. Some providers may use a different example, which is displayed in the table below.
A guide for curating additional providers can be found
here.
| Provider Name | Provider Code | URI |
|---|---|---|
| An Ontology for Units of Measure | un |
http://www.w3.org/2007/ont/unit#C |
| An Ontology for Units of Measure (RDF) | rdf |
http://www.w3.org/2007/ont/unit#C |
| Bioregistry | bioregistry |
https://bioregistry.io/un:C |