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Published

ratio of volumes

vr.tr.ratio-of-volumes · thing-q1647035

Let an agent identify which ratio of volumes is meant, explain its definition and use in the field, compute it from given volumes, and keep senses separate.

Thing Registry Cross-cutting context XCT.REL
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Sense Which ratio is meant.

Which

Sense and field.

Which

Which.

  1. Which ratio of volumes is meant, and what are its numerator and denominator? definition
  2. Is the question about a volume ratio or a related quantity? boundary

Definition

Definition per field.

Definition

Definition.

  1. How is the ratio defined in geometry, chemistry, engineering and physiology? definition
  2. Which entry fits the field? action
Compute Calculation.

Calculation

Calculation.

Calculation

Calculation.

  1. How is the ratio computed, and how are units and conditions handled? action
  2. What is the result for the values in question? measurement

Uncertainty

Uncertainty.

Uncertainty

Uncertainty.

  1. How is uncertainty in the ratio derived from the volumes? measurement
  2. Which entry fits measurement uncertainty? action
Use Uses by field.

Engineering

Engineering uses.

Engineering

Engineering.

  1. How are compression, void and fill ratios used? provenance
  2. Which entry fits compression ratio? action

Science

Scientific uses.

Science

Science.

  1. How are volume fractions and physiological ratios used? provenance
  2. Which references are standard? provenance
Learn Teaching.

Geometry

Geometry.

Geometry

Geometry.

  1. How do volume ratios behave under scaling, and how is that taught? provenance
  2. Which entry fits scaling? action

Teach

Teaching.

Teach

Teaching.

  1. Which misconceptions arise with volume ratios? provenance
  2. Which entry fits ratios generally? action

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.REL

What it is Filled

A dimensionless quantity obtained by dividing one volume by another, used in geometry to compare solids, in chemistry and engineering for mixtures and concentrations expressed as volume fractions, in physiology for measures such as ventilation ratios, and in packaging and logistics for fill and void ratios.

Why it exists Filled

Let an agent identify which ratio of volumes is meant, explain its definition and use in the field, compute it from given volumes, and keep senses separate.

Distinguishing features Filled

  • Dimensionless
  • Sense depends on field
  • Expressed as ratio, fraction or percentage
  • Requires the same volume units

What robots and AI may and may not do Filled

Must not

  • Invert a ratio without saying so.
  • Compare volumes measured at different conditions as if they were alike.
  • Mix the senses of the ratio across fields, such as volume fraction and geometric ratio.
  • Use a volume ratio for dosing medicines or hazardous mixtures without qualified checking.

Only with a human decision

  • Mixing ratios for fuels, medicines or chemicals in practice.

May

  • Compute a ratio of volumes and state which volume is divided by which.
  • State the temperature and pressure conditions when comparing gas volumes.

Moral aspects Filled

  • Errors in volume ratios can lead to wrong doses or dangerous mixtures.

Who is affected

  • Patients
  • Workers mixing substances
  • Learners

Owners Filled

Steward

Nobody owns the quantity; whoever reports a ratio answers for its definition.

Links to other meta-models Filled

parent

  • Q137974504 - registry parent class

related

  • ratio of two quantities of the same kind - a dimensionless quantity
  • volume fraction - a common form
  • compression ratio - an engineering case
  • mass ratio - a different quantity

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.ratio-of-volumes
  • Wikidata: Q1647035 (https://www.wikidata.org/wiki/Q1647035)

Direct properties not applicable Not applicable

Not applicable

Plane XCT: no invented physical properties.

Recognition optional Filled

  • One volume divided by another
  • Dimensionless
  • Volume fraction, mass ratio and density are related but different quantities
  • Not visible; a pure number or percentage.

Capabilities and actions required Filled

  • identify the sense in context
  • compute the ratio from given volumes
  • explain field-specific uses
  • relay typical values with sources

Hazards and failure modes required Filled

  • Mixing senses across fields
  • Inverting the ratio
  • Comparing volumes at different conditions

Standards and interfaces required Filled

  • ISO 80000 conventions for dimensionless quantities
  • Field-specific standards for volume fractions

Context of use required Filled

  • Comparing volumes in a dimensionless way.
  • geometric volume ratios of solids
  • volume fractions in mixtures
  • compression ratio in engines
  • void and fill ratios in packaging
  • physiological volume ratios
  • scale ratios in models

Sources Filled

  1. Wikidata item Q1647035: ratio of volumes - identity and sense of the item
  2. Wikipedia (de): Volumenverhältnis - general description of the item

Open questions

  • Should compression ratio be a separate entry?
  • How should field standards be linked?
  • How should conditions be recorded with ratios?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q1647035/spec.json