]>
hasPropertyAttribute
...that relates a property to a property attribute
propertyOf
...that relates an instance of a property to an instance of the physical entity in which the property inheres
hasProperty
...that relates an instance of a physical entity to an instance of a property that inheres in the entity
hasPhysicalDomain
...that relates a physical property to the domain of the entity of which it is a property
synonym
discussion
Set of physical entities
...that is an aggregate of physical entities
Partial gas pressure
Portion of energy
...that is a portion of thermodynamic energy
Portion of thermodynamic entropy
...that is a portion of thermodynamic entropy
Portion of potential energy
...is that portion of energy of a dynamical physical entity that is proportional to its displacement in a potential energy or force field
Portion of kinetic energy
...is that portion of energy of a dynamical physical entity that is ascribable to the momentum of the entity and is proportional to the square of its dynamical flow rate
Magnetic field
Electromagnetic field
Origin of temporal coordinate system
Portion of fluid kinetic energy
Portion of solid kinetic energy
Portion of fluid potential energy
Portion of strain potential energy
Portion of chemical potential energy
Portion of thermal potential energy
Portion of diffusion potential energy
Portion of electrical potential energy
Portion of magnetic potential energy
Portion of magnetic inductive energy
Discrete scope
A physical property has discrete scope if its value applies to the entire spatial region of a physical entity.
Continuum scope
A physical property has continuum scope if it's values vary smoothly throughout a spatial region occupied by the physical entity that has the physical property.
Constitutive property
...that is a scalar value that is the slope of a proportional constitutive dependency.
Constitutive proportionalities apply only to those constitutive dependencies that can be expressed by which the dependent property is proportional to the independent property. Any other algebraic form of the dependency may have specifially-defined parameters (e.g., offsets, rate parameters). Given the creativity and license of modelers for creating the best fit to constitutive dependencies, the parameters of such non-proportional dependencies must be annotated by some local mechanism that does not depend on OPB classifications.
Simply put, proportionalities exclude constants, coefficients, or parameters of algebraic functions required to characterize linear and nonlinear dependencies that are not simple proportionalities.
Locus of point region
Homologous set
...that are of a single type
Geometric form
...that is the mathematical structure of a property value.
Heterologous set
...that are of a one or more types
Thermodynamic property
1
...that is a property of an energy-bearing physical entity whose value is the amount or rate of change of the amount of thermodynamic energy inhering in an entity.
Kinetic energy amount
Potential energy amount
Real numerical form
Magnetic flux linkage
1
Imaginary numerical form
Complex numerical form
Dynamical rate property
...that is the temporal differential of a state property
Information entropy amount
Thermodynamic entropy amount
Total energy amount
Particle concentration
Particle count
Physical process entity
...that is an occurrent that...
Electrical domain
...in which the physical entity are electricl charges and electrical fields
Dynamical entity
...that is the bearer of portions of thermodynamic energy whose amounts are determined by the values of the dynamical physical properties of the dynamical entity.
NEEDTO: consider process participation to discriminate dynamical entity classes (as implied by the class name qualifier "dynamical") because these are the aspects of things, that change during processes. For example, a molecule, or particle, is a material structure that can participate in a chemical reaction process, a diffusion process, or a solid-structure deformation process. Thus, an instance of a ChEBI class (the molecule, itself) can be "have" (ie. be analyzed as) reactant properties, diffusive properties, and solid deformational properties. Other, classes are not so problematical. For another example, an instance of FMA:Portion of blood can participate as a portion of fluid (ie. flow advectively), diffuse (as in a PDE mixing model), translocate along with its vessel, and gain/lose heat and entropy.
Energy property
Solid potential energy amount
Fluid potential energy amount
Chemical potential energy amount
Fluid kinetic energy amount
Solid kinetic energy amount
Immaterial dynamical entity
...that is immaterial; not composed of atoms
Physical dimension
that are the dimensions of physical properties
Process entity
Temporal region
Property value coordinate basis
...that is the specification of the coordinate system in which a property and its value are defined.
Property value
...that is the value of a physical property as determined by physics-based measures and/or computations on such measures.
subclasses are kinds of values as encoded in a particular dataset or analytical expression. For example, a blood pressure is_a variable evaluated at an instant (a Variable value) while the maximum blood pressure in a data set is a Maximum_of_set_of_property_values.
Standard value for unit of measure
...that is the value of a property that is the basis for normalization to a unit of measure for a property
Chemical reactant
...that is chemical species or particle that can participate in a chemical reaction process
Property value spatial scope
...that distinguishes between values that apply to discrete properties, those that are spatial integrals over the dynamical entities to which they apply from continuum properties whose values are functions of spatial location within the bounds of a dynamical entity
Pressure differential
Absolute pressure
Property value spatial reference frame
...for continuum flows and displacements, the relationship between a portion of moving/displacing material and the spatial coordinate system in which the movement/displacement occurs
Eulerian reference frame
...within which spatially distributed rate properties of within an entity are defined at fixed points relative to an external reference frame.
Lagrangian reference frame
...within which rate properties of an entity define a trajectory of the entity relative to an external reference frame.
Algebraic form
...that is the algebraic relationship of a property value to another value of a property of the same class.
(from Dybkaer, R., An Ontology on Property - For Physical, Chemical and Biological Systems. e-published by IUPAC (International Union of Pure and Applied Chemistry), 2009 see: http://ontology.iupac.org/index.html.)
Differential form
...that can be subtracted from, but not divided by, another property value of the same class.
Following: "differential unitary quantity value" from Dybkaer, R., An Ontology on Property - For Physical, Chemical and Biological Systems. e-published by IUPAC (International Union of Pure and Applied Chemistry), 2009 see: http://ontology.iupac.org/index.html.
Ratiometric form
Following: "rational unitary quantity value" from Dybkaer, R., An Ontology on Property - For Physical, Chemical and Biological Systems. e-published by IUPAC (International Union of Pure and Applied Chemistry), 2009 see: http://ontology.iupac.org/index.html.
...that is a property value that is divided another property value of the same class.
Ordinal form
Following: "ordinal quantity value" from Dybkaer, R., An Ontology on Property - For Physical, Chemical and Biological Systems. e-published by IUPAC (International Union of Pure and Applied Chemistry), 2009 see: http://ontology.iupac.org/index.html.
...that is a property value that can only be ranked as having a magnitude that is lesser than, equal to, or greater than another property value of the same class.
Maximum value
Physical property attribute
...that is the value, dimension, or attribute of the value of a physical property
Material amount
...that is the amount (i.e., mass) of matter that inhers in a material dynamical entity
Portion of chemical reactant
...that is an uncountably large set of chemical reactants.
Portion of particles
...that is a uncountably large set of particles
Threshold value
Spatiotemporal coordinate basis
...that is a spatial coordinate system and a temporal coordinate system.
Areal electrical resistivity
Magnetic domain
Lineal electrical resistivity
Minimum value
Continuum relative value
Mean value
Property value unit of measure
...that is defined value of a physical property by which measured values of the same property are scaled.
Statistical value
...that is a statistical measure of a set of physical property values
Mean of set of property values
Maximum of set of property values
Cardinality of set of property values
Minimum of set of property values
Variance of set of property values
Lineal particle diffusion coeffiecient
Areal particle diffusion coeffiecient
Atomic weight
Molecular weight
Variable value
Scalar form
Constitutive property value
Dynamical constitutive property
...that is the proportionality between dynamical properties that participate in a proportional dynamical constitutive dependency
Particle
...that is a discrete quantity of matter, electrically charged or electroneutral, that can change spatial location by a process of diffusion.
Signalled transactor proportionality
...that is a proportionality of a signalled transactor dependency
Direct transactor proportionality
Energy density
Density
For an inhomogenous entity, the density varies spatially within the entity and is determined at each point by the limit of the ratio of the extensive property to the spatial extent of a small region around the point as the region approaches zero volume.
...that is the ratio of an extensive property of an entity to the volume of the spatial region occupied by the region.
Charge density
Material flow rate
...that is the temporal rate of change of the a material amount or, equivalently, the temporal rate at which matter passes across a spatial boundary, or from one disecrete entity to another.
Heat capacity
Transactor sender proportionality
...that is a proportionality between a signal receiver property and the signal property of a signalled transactor dependency
Transactor receiver proportionality
...that is a proportionality between a signal property and the controlled property of a signalled transactor dependency
Energy lineal density
...that is the ratio of the amount of energy in a 1-dimensional spatial region to the volume of that region.
Energy areal density
...that is the ratio of the amount of energy in a 2-dimensional spatial region to the volume of that region.
Energy volumetric density
...that is the ratio of the amount of energy in a 3-dimensional spatial region to the volume of that region.
Charge volumetric density
...that is the ratio of the amount of charge in a 3-dimensional spatial region to the volume of that region.
Charge areal density
...that is the ratio of the amount of charge in a 2-dimensional spatial region to the volume of that region.
Charge lineal density
...that is the ratio of the amount of charge in a 1-dimensional spatial region to the volume of that region.
Chemical conductance
1
Solid conductance
1
Fluid conductance
1
Heat conductance
1
Bounded surface
Electrical conductance
1
Boltzmann constant
...that is the proportionality of the energy of a particle per rise in absolute temperature; equal to the Gas constant divided by Avogadro's constant.
Boltzmann constant
Diffusion kinetic domain
...in which the physical entity is a portion of particles
Electromagnetic constant
Spatial amount property
...that is the spatial extent of a spatial region
Translational momentum
Translational momentum
Solid force
1
...that accelerates or deforms solid entities; measured as ratio of ratio the acceleration of the entity divided by its mass (Newton's Law) or as the deformation of the entity divided by its stiffness (Hooke's Law)
Chemical capacitance
1
Conductance property
...is the derivative of flow versus force in a resistive dependency; the reciprocal of kinetic resistance property
Electrical resistivity
1
Bending displacement
Single electrical charge
...that is the quantum of electrical charge
Chemical amount
1
...is the temporal integral of a Chemical flow
Chemical amount
Polar coordinate system 2D
2D-Polar coordinate system
Transducer ratio
2
...is the nondimensional derivative of the magnitudes of dynamical property that are players in a transducer dependency
Cardinality dimension
...that is the number of entities in a set of entities
Unitary dimension
...that is a unit-less dimension
Pressure momentum
1
...is the temporal integral of a Fluid pressure; also the Fluid flow times the mass density of a Portion of fluid
Pressure momentum
Spatial locus
...that is the set of all spatial points within a spatial region
Fluid volumetric elastance
1
Chemical elastance
1
Solid velocity
1
...is the temporal derivative of a solid displacement
Solid elastance
1
Shear capacitance
Electrical elastance
1
Particle diffusive elastance
Faraday constant
...is the amount of electric charge per mole of electrons;
Faraday constant
Heat elastance
Gravitational field
...by which material entities exert an attractive force on each other that is proportional to the product of their masses
Gravitational field
Spatial coordinate basis
...that is a spatial coordinate system.
Transformer ratio
1
...is the nondimensional ratio of the magnitudes of kinetic property that are players in a transformer dependency
Mass volumetric density
...that is the ratio of the amount of material in a 3-dimensional spatial region to the volume of that region.
Fluid inductance
1
...for the fluid domain
Fluid viscosity
1
One dimensional spatial region
..is a mathematical function that, given one value, returns a spatial point
Time dimension
defined as time dimension per: http://aurora.regenstrief.org/UCUM/ucum.html#section-Base-Units
Shear force
Shear force
Bounded volume shape
Tensile force
Tensile force
Inductance property
...is the derivative momentum versus force in an inductive dependency
Amount property
...is the temporal integral of a flow rate
Solid bending velocity
Standard gravity constant
... is the nominal acceleration due to gravity at the Earth's surface at sea level; http://en.wikipedia.org/wiki/Standard gravity
Cartesian coordinate system 2D
2D-Cartesian coordinate system
Physical property
...that is an attribute of an instance of a physical entity or process that has a quantitative value that could be measured by a physical device, or computed from such measures.
Electrical resistance
1
Fluid volume
1
Fluid volume
...is the temporal integral of a Fluid flow
Temporal instant
...is a point in time
Temporal moment
Fluid resistance
1
Angular momentum
Angular momentum
Temperature dimension
defined as temperature dimension per: http://aurora.regenstrief.org/UCUM/ucum.html#section-Base-Units
Property dimension
...is a fundamental coordinate of a physical property upon which its units of measure are based
OPB:Physical dimension subclasses are a set of base dimensions (length, time, mass, charge, temperature, luminosity, angle) as proposed by Schadow (as “kind of quantity”) from which a coherent set of derived property dimensions for other physical properties may be derived as products of base dimensions raised to integer (both positive and negative) powers (e.g., velocity = length•time-1, pressure = force•length-2, volume = length+3).
See: Schadow, G. and C.J. McDonald. The Unified Code for Units of Measure.; Available from: http://aurora.regenstrief.org/UCUM/ucum.html
Chemical resistance
1
Solid capacitance
1
Solid momentum
1
Solid momentum
...is the temporal integral of a Solid force; also the Solid-velocity times the mass of a solid Material physical entity
Closed line
Solid resistance
1
Bending capacitance
Locus of points in surface region
Mass dimension
defined as mass dimension per: http://aurora.regenstrief.org/UCUM/ucum.html#section-Base-Units
Mass lineal density
...that is the ratio of the amount of material in a 2-dimensional spatial region to the volume of that region.
Length of line region
Tensile capacitance
Solid mechanics domain
...in which the physical entity is a molecule or a multimolecular structure
Heat resistance
1
Heat flow rate
1
......is the temporal derivative of a Heat amount
Heat flow
Charge dimension
defined as charge dimension per: http://aurora.regenstrief.org/UCUM/ucum.html#section-Base-Units
Electrochemical domain
...in which the physical entity is a portion of ions
Newtonian gravitational constant
...that is the constant of proportionality that relates the gravitational force between two Material physical entities as the product of the masses of the entities divided by the distance between the entities; <http://en.wikipedia.org/wiki/Gravitational constant>
Newtonian gravitational constant
Electric constant
formerly dielectric constant
Elastance property
...is the derivative of force versus displacement in a capacitive dependency; reciprocal of capacitance property
Locus of points in volume region
Resistance property
...is the derivative of force versus flow in a resistive dependency; reciprocal of kinetic conductance property
Diffusion resistance
1
Torsional capacitance
Angle dimension
defined as angle dimension per: http://aurora.regenstrief.org/UCUM/ucum.html#section-Base-Units
Chemical flow rate
1
...is the temporal derivative of the amount of chemical
Dynamical domain
...in which the physical entity is a dynamical entity
Chemical bond
A Bond is an abstraction that represents ONLY the energetics of an attractive interaction between entities; i.e., the bond is manifested as a minimum energy state (usually as a function of entity-entity distance). Thus, a bond can be defined irrespective of the physical mechanism that mediates the bond such as electron-sharing or the extracellular matrix between cells.
...that is an attractive interaction between physical
entities that requires force to be displaced or disrupted
Solid translational velocity
Solid translational velocity
Mass areal density
...that is the ratio of the amount of material in a 1-dimensional spatial region to the volume of that region.
Material dynamical entity
...that consists of matter
Translational displacement
Translational displacement
Thermodynamic domain
...in which the physical entities are portions of thermodynamic energy
Potential energy field
Force field
...is an immaterial spatial distribution of potential energy by which physical entities exert force upon each other.
Transactor proportionality
...that is the proportionality between two dynamical properties in a transactor dependency
Temperature
1
...that drives the flow of heat energy from one portion of heat to another
Area of surface region
Fluid flow rate
1
Fluid flow
...is the temporal derivative of a fluid volume
One dimensional spatial coordinate basis
...that is comprised of a single spatial dimension
Closed surface
Physical entity
...that is an abstraction that represents
Charge flow rate
1
...is the temporal derivative of an amount of portion of electrical charge
Luminosity dimension
defined as luminoisity dimension per: http://aurora.regenstrief.org/UCUM/ucum.html#section-Base-Units
Solid displacement
1
...is the temporal integral of a Solid velocity
Fluid volumetric capacitance
1
Shear displacement
Shear displacement
Heat capacitance
1
Chemical concentration
the concentration of a portion of molecules that is the spatial average of the intensive chemical concentration field
Constitutive path property
1
...that quantitatively characterizes a constitutive dependency
Property value attribute
...that characterizes the spatial attributes, mathematical form, or unit of measure of the value of a physical property
Portion of fluid
...that is an incompressible material substance with fluid kinetic properties.
Solid shear velocity
Solid shear velocity
Unbounded surface
Cartesian 3D-coordinate system
Initial instant
...that is the moment that a process begins
Terminal instant
...that is the moment that a process ends
Magnetic constant
Magnetic constant
Chemical potential
1
that is the dynamical force that drives chemical kinetic reactions; also minus the change in Gibbs free energy of the reactants that participate in a chemical reaction (-∆G)
Electrical charge entity
1
is a primitive entity that is one or more electrical charges
Fluid kinetic domain
...in which the physical entity is a portion fluid
Unbounded volume shape
Physical property dependency
...is a quantitative dependency between the values of physical properties
Property value mathematical form
...that is the mathematical form of an encoded datum or variable
--- outsource this class to existing ontology??
Gas constant
...that is the proportionality of the energy of a substance per mole per rise in absolute temperature; the same as Boltzmann's constant times Avogadro's constant.
Gas constant
Charge amount
1
Electrical charge
...is the temporal integral of a Electrical current
Solid inductance
1
Real-imaginary form
Gravitational constant
Universal constitutive constant
...that is an invariant measured or defined physical property of matter or space.
Chemical molar amount
total amount of a portion of chemical within a spatial region
Vector form
...is a physical property whose value is expressed as a combination of a scalar and a spatial orientation in a spatial coordinate system.
Constitutive coupling property
...that is a scalar proportionality of a constitutive coupling dependency between properties of two physical entities
Chemical kinetic domain
...in which the physical entity is a portion of molecules
Tensor form
...is a physical property whose value is a multidimensional array of scalars whose values are invariant under spatial coordinate transformation.
Three dimensional spatial region
...that consists of point regions in a three spatial dimensions in space
Portion of electrical charge
....that is a uncountable set of quantal charges whose net charge is quantified as a continuous scalar quantity
Electrical capacitance
1
Temporal coordinate basis
...that is a temporal coordinate system.
Length dimension
defined as length dimension per: http://aurora.regenstrief.org/UCUM/ucum.html#section-Base-Units
Bounded line
Mass density
Mass density
Cylindrical coordinate system
Cylindrical coordinate system
Two dimensional spatial region
...that consists of point regions in a two spatial dimensions in space
Avagadro constant
1
...that is the number particles, usually, atoms or molecules in one mole of a chemical entity.
Avagadro constant
Particle amount
1
Particle amount
...is the temporal integral of a Particle flow
Physical domain
...that is a set of physical entities, properties, dependencies, energies, and processes that apply to a specific kind of physical phenomen such fluid flow, electrical charge flow, solid mechanics, etc.
Note that a single physical entity may be modeled and analyzed in more than a single physical domain. For example, a molecule may participate in undergo (1) chemical transformation (chemical kinetic domain), (2) diffusion (diffusion kinetic domain), (3) structural deformation (solid mechanical domain), and, even (4) change of informational entropy (due to reorganization; information domain). Thus domains try to capture what aspects of an entity are of interest and abstraction in a given analysis.
Discrete intensive scope
...that is measured or applies to the entirety of a physical entity but is independent of the spatial extent or mass of the entity;
Discrete extensive scope
A physical property has discrete extensive if it's value applies to the entire spatial region occupied by a physical entity and is the spatial integral of a property and is proportional to the spatial extent or mass of the entity.
Heat kinetic domain
...in which the physical entity is a portion of heat
Continuum point scope
A physical property has continuum point scope if it has the value at an arbitrarily small spatial region surrounding a spatial point within a spatial region; an intensive property.
Spatial region
..is a bounded or unbounded region of space that has spatial properties
Rotational displacement
Rotational displacement
Momentum property
...is the temporal integral of a force
Continuum field scope
A physical property has continuum field scope if it is the spatially distributed values of the property throughout a spatial region; the spatial distribution of an intensive property.
Zero dimensional spatial region
...that is an arbitrarily small spatial region surrounding a spatial point
Origin of spatial coordinate system
Solid angular velocity
Solid angular velocity
Heat amount
1
Heat amount
...is the temporal integral of a Heat flow
Solid structure
...that has solid dynamical properties
Locus of points in line region
Spherical coordinate system
Spherical coordinate system
Spatial property
1
...that is a measure of the spatial extent or location of a spatial entity referred to a spatial coordinate system.
Electrical voltage
1
...that is driving force for the flow of charge from one portion of charge to another. Measured as the difference in electric potential between two points or the difference in electric potential energy per unit charge between two points.
Fluid pressure
1
...that is the driving force for the movement of fluid; measured as the normal force per unit area exerted by a fluid on a surface bounding a portion of fluid, or on a virtual surface within the portion of fluid.
Capacitance property
...is the derivative of displacement versus force in a capacitive dependency; reciprocal of elastance property
Thermodynamic entity
...that is the capacity of a dynamical entity to perform work which is determined by its thermodynamic properties.
Electrostatic field
...by which electrical charges that are immobile with respect to each other exert force on each other
Electrostatic field
Volume of volume region
Temporal interval
...is a period of time bounded by two temporal moments (that may be the same moment).
Temporal interval
Physical analytical entity
Physical analytical entity
The OPB is an ontology of the abstract concepts created by the science of systems dynamics and thermodynamics. Aside from its dependence on classical physics, the OPB does not purport to be a philosophically-based representation of physical "reality". We are motivated by utilitarian goal of facilitating and expediting the annotation and cross-referencing of physics-based analytical models in the realm of biomedicine.
The OPB does not include quantum or relativistic physics, nor is it intended to recapitulate the axiomatic basis of physics as a theoretical framework. Whereas the foundational theory of the OPB encompasses both discrete systems analysis (using ordinary differential equations; ODEs) and continuum systems analysis (using partial differential equations; PDEs), the first version of the OPB is targeted solely to discrete systems analysis.
A physics analytical entity is a formal abstraction of the real world created within the science of classical physics for describing and analyzing physical entities, attributes, and processes.
Particle diffusion coefficient
1
Unbounded line
Physiochemical constant
Constitutive dependency
...that is a dependency between the magnitudes of dynamical physical properties that is an empirical approximation that depends on an intensive property of participating entities in the dependency.
Particle flow rate
1
...is the temporal derivative of the amount of particles in a portion of particles.
Material intensive property
...that is a measureable at a point within a portion of material and is independent of the spatial extent of the portion
Spatial domain
...in which the physical entity is a spatial entity
Three dimensional spatial coordinate basis
...that is comprised of three orthogonal spatial dimensions
Two dimensional spatial coordinate basis
...that is comprised of two orthogonal spatial dimensions
Entropy property
Energy amount
...that is a measure of the amount of energy in a portion of energy
Energy flow rate
...that is the temporal rate of change of the an energy amount or, equivalently, the temporal rate at which energy passes across a spatial boundary, or from one disecrete entity to another.
Entropy flow rate
...that is the temporal rate of change of the a entropy amount or, equivalently, the temporal rate at which entropy passes across a spatial boundary, or from one disecrete entity to another.
Entropy amount
...that is a measure of the amount of entropy in a portion of entropy
Dynamical property
1
...that is a property of an energy-bearing physical entity whose value determines the amount or rate of change of the amount of thermodynamic energy inhering in the entity.
Dynamical state property
...that is the temporal integral of a rate property
Flow rate property
......that is the sum of flow rates entering an energetic physical entity and is the temporal differential of its amount
Force property
...is a determinant of potential energy, AND is a participant in a resistive dependency and a capacitive dependency, AND is a temporal differential on momentum
Chemical molar flow rate
measured in concentration per unit time; moles/s
Chemical concentration flow rate
measured in concentration per unit time; M/s
Diffusion gradient
1
...that is the dynamical force that drives the flow of particles from one portion of particles to the other; measured as the difference in particle amount between portions of particles divided by the length of the diffusion pathway between points.