The Product Types Ontology for Semantic Web-based E-Commerce
PTO: The Product Types Ontology for Semantic Web-based E-Commerce
The Product Types Ontology: Good identifiers for product types based on Wikipedia
This service provides GoodRelations-compatible class definitions for any type of product or service that has an entry in the English Wikipedia.
Vocabulary: http://www.productontology.org/#
Namespace: http://www.productontology.org/
The Product Types Ontology is designed to be used in combination with GoodRelations, a standard vocabulary for the commercial aspects of offers.
See http://purl.org/goodrelations/ for more information.
2024-03-29T12:01:38.851308
The class abstracts and translations of labels are taken from Wikipedia, the free encyclopedia.
Martin Hepp
The class definition texts are taken from Wikipedia, the free encyclopedia under a Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license, see http://creativecommons.org/licenses/by-sa/3.0/. Accordingly, all ontology class definitions provided in here are available under the very same license.
E-Commerce, E-Business, GoodRelations, Ontology, Wikipedia, DBPedia
Power transfer unit
In aviation, a power transfer unit (PTU) is a device that transfers hydraulic power from one of an aircraft's hydraulic systems to another in the event that the other system has failed or been turned off.
The PTU is used when, for example, there is right hydraulic system pressure but no left hydraulic system pressure. In this example, the PTU transfers hydraulic power from the right hydraulic system to the left hydraulic system. A PTU consists of a hydraulic motor paired with a hydraulic pump via a shaft.
As the connection is purely mechanical, there is no intermixing of hydraulic fluid between the left and right hydraulic systems during PTU operation.
(Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/Power_transfer_unit)
Power Transfer Unit
Voimansiirtoyksikkö
Power transfer unit