Physical Sciences, Maths & Units

Quantities and units of measure, mathematics, statistics, physics and astronomy.

54 resources

Sorted by evaluation score
Ontology D48

PANETPhoton and Neutron Experimental Techniques Ontology

The ExPaNDS Photon and Neutron Experimental Techniques (PaNET) ontology provides a taxonomy and thesaurus of photon and neutron (PaN) experimental techniques. Based mainly on accelerator-based light sources and neutron facilities, the primary use of the ontology is to enhance the FAIRness of PaN data catalogues services. The ontology defines specific techniques in terms of more general technique classes and provides synonyms and references.

Physical Sciences, Maths & Units 1.3.0
OWL FAIR 37/48 · 0 adopters
Vocabulary D48

UATUnified Astronomy Thesaurus

The Unified Astronomy Thesaurus (UAT) is an open, interoperable and community-supported thesaurus being developed to unify the existing divergent and isolated Astronomy & Astrophysics thesauri into a single high-quality, freely-available open-source thesaurus which will be of immediate value to both research and research support, and provide a mechanism for reviewing, discussing and evaluating the continuous evolution of terminology in these fields.

Physical Sciences, Maths & Units v6.0.0
RDFSKOS FAIR 34/48 · 0 adopters
Ontology D43

MATHMODDBMathModDB Ontology and Knowledge Graph for Mathematical Models

MathModDB is a database of mathematical models developed by the Mathematical Research Data Initiative (MaRDI). MathModDB defines a data model with classes (Mathematical Model, Mathematical Formulation, Research Field, Research Problem, Quantity [Kind], Computational Task, Publication), object properties/relations, data properties and annotation properties as an ontology. This ontology is populated with individuals/data from various fields of applied mathematics, making it a knowledge graph. [from homepage]

Physical Sciences, Maths & Units+2 domains 2.0.0
OWL FAIR 30/48 · 0 adopters
Ontology D41

coral.comoContextual Ontology-based Repository Analysis Library - Context and Measurement Ontology

The Context and Measurement Ontology (COMO) contains ontological terms to describe the context for various types of experimental data and measurements. It is useful in its current state for several different environmental microbiology projects. This ontology is used in multiple CORAL (Contextual Ontology-based Repository Analysis Library) deployments.

Physical Sciences, Maths & Units 2025-12-15
OBO FAIR 30/48 · 0 adopters
Ontology D40

EMPTYExperimental Measurements Purposes and Treatments ontologY

The Experimental Measurements, Purposes, and Treatments ontologY (EMPTY) is a structured vocabulary designed to capture and standardize the scientific reasoning behind experimental measurements. It addresses a critical gap in existing metadata standards, which primarily focus on technical specifications rather than scientific intent. The ontology provides a common language to express why a measurement was taken and the conceptual conditions under which it should be interpreted.

Physical Sciences, Maths & Units 2026-04-04
OWLOBOJSON FAIR 30/48 · 0 adopters
Vocabulary D40

PHYSHPhysics Subject Headings

PhySH (Physics Subject Headings) is a physics classification scheme developed by the American Physical Society to organize journals, meetings, and other content by topic. The development of PhySH is motivated by the lack of a fully open, high quality classification scheme for physics. It is intended initially to meet the specific goals of the APS for our journal, meeting, and other content. A longer term goal is to make it available for use by the broader community.

Physical Sciences, Maths & Units v2.8.0
RDF FAIR 30/48 · 0 adopters
Ontology D40

REORoll Edition Ontology

A small extension of CIDOC CRM and LRMoo for digital editions of piano rolls. It adds the symbols a reproducing piano reads from a roll (notes and expression commands), the relations between such symbols that an editor states, and the edits by which one version of a roll becomes another. Everything else (physical copies and their holes, recording processes, versions, editorial beliefs) is expressed with CIDOC CRM, LRMoo and CRMinf directly. The closed value lists of the format are the types at https://w3id.org/reo/type/.

Physical Sciences, Maths & Units ; rdfs:seeAlso
OWL FAIR 30/48 · 0 adopters
Ontology E35

MATHALGODBAlgorithm Knowledge Graph Ontology

This vocabulary and grammar defines which types of objects are admissible to the MathAlgoDB - the algorithm knowledge graph - and by which properties they can relate. All in all five classes, "problem", "algorithm", "benchmark", "software", "publication", are defined, as well as a minimal but intuitively intelligible number of properties. As opposed to the more liberal WikiData, MathAlgoDB relies on the strict adherence to the ontology to provide a reliable machine-readable database of (numerical) algorithm knowledge. [from homepage]

Physical Sciences, Maths & Units+1 domain 0.1
OWLRDF FAIR 30/48 · 0 adopters
Ontology E33

PV-Collada Ontology

OWL 2 ontology derived from the PV-Collada 2.0 XSD schema. Provides vocabulary for PV system circuit topology, physical layout geometry, and component product data, within the MDS-Onto builtenv domain.

Physical Sciences, Maths & Units 0.1.0
OWL FAIR 25/48 · 0 adopters
Ontology E27

PhyDiT Ontology

PhyDiT provides the bare-essential classes and relationships which bridge to ontologies for control program description (like CTRLOnt, CDL etc.), system design description (like BRICK, SOSA, etc.), and physical process models (like OntoCAPE, Tubes, Flow etc.)

Physical Sciences, Maths & Units 1.1
OWL FAIR 27/48 · 0 adopters
Ontology E27

SPECSpec Terms

Spec Terms provides classes and properties that can be used to describe any significant unit of information in technical reports.

Physical Sciences, Maths & Units ; # rdfs:seeAlso
OWL FAIR 26/48 · 0 adopters
Ontology E24

HSTOHistoric Structure Ontology (HSTO)

The Historic Structure Ontology (HSTO) provides a formal representation of the physical configuration of masonry aggregates by explicitly modelling the relationships among their structural components, including facades, horizontal structures, openings, and connections.

Physical Sciences, Maths & Units file of 2026-05-20
OWL FAIR 16/48 · 0 adopters
Ontology E22

NEXUSNeXus Ontology

NeXus is a common data format for neutron, x-ray, and muon experimental data. The NeXus Ontology is an ontology representation of the NeXus [definitions](https://github.com/nexusformat/definitions/).The [NeXus International Advisory Committee](https://www.nexusformat.org/NIAC.html) is responsible for NeXus.

Physical Sciences, Maths & Units 54df1c1
OWL FAIR 27/48 · 0 adopters
Ontology E21

Plasma Ontology

The plasma ontology (Plasma-O) supports the standardized documentation of research data in the field of plasma physics. In accordance with typical plasma processes and applications, the ontology contains terminologicial knowledge about plasma source, plasma medium, and plasma target. Furthermore, metadata for the respectively applied diagnostic and modelling/simulation methods are represented.

Physical Sciences, Maths & Units 0.8.0
OWL FAIR 26/48 · 0 adopters
Ontology E16

tno.interconnect.datapointInterconnect Datatype and Timeseries Ontology

This ontology extension was created to address the following needs: - The necessity of expressing time-series of data for various tasks and services in InterConnect - A workable and unambiguous characterization of quantities, combining units with measurements. This characterization should be technically complete so that quantities cannot be confused during data exchange between unfamiliar services

Physical Sciences, Maths & Units
OWL FAIR 21/48 · 0 adopters

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Also used in Physical Sciences, Maths & Units

50 resources from other domains
Ontology B83

STATOThe Statistical Methods Ontology

STATO is the statistical methods ontology. It contains concepts and properties related to statistical methods, probability distributions and other concepts related to statistical analysis, including relationships to study designs and plots.

Life Sciences+3 domains 2026-04-20
OWL FAIR 44/48 · 3 adopters
Ontology B71

XCOExperimental condition ontology

Conditions under which physiological and morphological measurements are made both in the clinic and in studies involving humans or model organisms.

Health & Clinical+1 domain 2026-10-17
OWLOBO FAIR 47/48 · 0 adopters
Ontology C68

EFOExperimental Factor Ontology

The Experimental Factor Ontology (EFO) provides a systematic description of many experimental variables available in EBI databases. It combines parts of several biological ontologies, such as anatomy, disease and chemical compounds. The scope of EFO is to support the annotation, analysis and visualization of data handled by the EBI Functional Genomics Team.

Life Sciences+4 domains v3.95.0
OWLOBO FAIR 41/48 · 0 adopters
Ontology C65

OBCSOntology of Biological and Clinical Statistics

OBCS stands for the Ontology of Biological and Clinical Statistics. OBCS is an ontology in the domain of biological and clinical statistics. It is aligned with the Basic Formal Ontology (BFO) and the Ontology for Biomedical Investigations (OBI)

Computing & Software+3 domains 2023-12-08
OWL FAIR 47/48 · 1 adopter
Ontology C62

OWL-TimeTime Ontology in OWL

Owl-time is an owl-2 dl ontology of temporal concepts, for describing the temporal properties of resources in the world or described in web pages. the ontology provides a vocabulary for expressing facts about topological (ordering) relations among instants and intervals, together with information about durations, and about temporal position including date-time information.

Metadata, Provenance & Publishing+4 domains 2006
OWLTurtle FAIR 34/48 · 0 adopters
Ontology Inactive D54

GEOGEOGeographical Entity Ontology

An ontology and inventory of geopolitical entities such as nations and their components (states, provinces, districts, counties) and the actual physical territories over which they have jurisdiction. We thus distinguish and assign different identifiers to the US in "The US declared war on Germany" vs. the US in "The plane entered US airspace".

Earth & Environment+1 domain production version 2016…
OWL FAIR 44/48 · 0 adopters
Ontology D49

EMMOElementary Multiperspective Material Ontology

EMMO is a multidisciplinary effort to develop a standard representational framework (the ontology) for applied sciences. It is based on physics, analytical philosophy and information and communication technologies. It has been instigated by materials science to provide a framework for knowledge capture that is consistent with scientific principles and methodologies. (from GitHub)

Chemistry & Materials+2 domains 1.0.3
OWLTurtle FAIR 33/48 · 0 adopters
Ontology D49

ENMeNanoMapper ontology

The eNanoMapper project (https://www.enanomapper.net/), NanoCommons project (https://www.nanocommons.eu/) and ACEnano project (http://acenano-project.eu/) are creating a pan-European computational infrastructure for toxicological data management for ENMs, based on semantic web standards and ontologies. This ontology is an application ontology targeting the full domain of nanomaterial safety assessment. It re-uses several other ontologies including the NPO, CHEMINF, ChEBI, and ENVO.

Chemistry & Materials+2 domains 10.0
OWL FAIR 41/48 · 0 adopters
Ontology D48

NPONanoParticle Ontology

An ontology that represents the basic knowledge of physical, chemical and functional characteristics of nanotechnology as used in cancer diagnosis and therapy.

Neuroscience+3 domains 2011-12-08 (yyyy-mm-dd)
OWL FAIR 36/48 · 1 adopter
Ontology Inactive D43

BTOBRENDA Tissue Ontology

The Brenda tissue ontology is a structured controlled vocabulary eastablished to identify the source of an enzyme cited in the Brenda enzyme database. It comprises terms of tissues, cell lines, cell types and cell cultures from uni- and multicellular organisms.

Life Sciences+3 domains 2021-10-26
OWLOBOJSON FAIR 44/48 · 0 adopters
Ontology D43

VSOVital Sign Ontology

The Vital Sign Ontology (VSO) is an extension of the Ontology for General Medical Science (OGMS). VSO covers the four consensus human vital signs: blood pressure, body temperature, respiration rate, pulse rate. VSO provides also a controlled structured vocabulary for describing vital signs measurement data, the various processes of measuring vital signs, and the various devices and anatomical entities participating in such measurements.

Health & Clinical+1 domain 2012-04-25
OWL FAIR 33/48 · 0 adopters
Ontology Legacy D42

FMAFoundational Model of Anatomy

The Foundational Model of Anatomy Ontology (FMA) is a biomedical informatics ontology. It is concerned with the representation of classes or types and relationships necessary for the symbolic representation of the phenotypic structure of the human body. Specifically, the FMA is a domain ontology that represents a coherent body of explicit declarative knowledge about human anatomy.

Neuroscience+3 domains 5.1.0
OWL FAIR 41/48 · 0 adopters

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