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Generated draft

nuclear fuel

vr.tr.nuclear-fuel · PHY.MAT
Thing Registry Physical world and living systems

Generated draft, first pass

This model was drafted by rule from what the registry knows about the thing. It proposes which bundles a real model will need and which questions research must answer. It is not researched and no sentence in it is sourced.

Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.

Generator: vr.draft.v3

Purpose and description

Give an agent a durable, checkable way to recognise a nuclear fuel, record what state it is in, and decide what may be done with it.

A physical thing registered under PHY.MAT. The registry names it; this draft has not been given a definition yet.

It can be observed and measured; consumed or used up.

Distinguishing features

Names folded into this entry, which a task may need to split apart again: high-assay low-enriched uranium, accident tolerant fuel, Accident Tolerant Fuels, nuclear fuel element, Remix Fuel.

5 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.

Described in 52 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is.

Physical character

Made of: matter you can touch.

Mobility varies between examples.

Does nothing on its own; everything it does, something else did to it.

These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing.

How it is recognised

Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay.

Related models

covers - Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.

high-assay low-enriched uraniumaccident tolerant fuelAccident Tolerant Fuelsnuclear fuel elementRemix Fuel

Described in 52 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 5 finer distinctions are held inside this entry as names rather than as separate models.

Also called

high-assay low-enriched uraniumaccident tolerant fuelAccident Tolerant Fuelsnuclear fuel elementRemix Fuel

Where this came from

wikidata · CC0 1.0

Also registered as vr.tr.nuclear-fuel

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 9 bundles · 20 layers · 22 findings · 60 questions.

Identity, naming and classification How an agent tells one nuclear fuel from another, and a nuclear fuel from things that resemble it.

Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.

Names and identifiers

The names this thing goes by and the identifiers that survive translation and time.

Preferred name, aliases and local names

Which name to use, which names mean the same thing, and which merely sound similar.

  1. What identifies and describes the name of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the name of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the name of a nuclear fuel is known, and what must it refuse? action

Stable identifiers and external keys

Identifiers that keep pointing at this kind of thing across systems and languages.

  1. What identifies and describes an identifier for a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about an identifier for a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once an identifier for a nuclear fuel is known, and what must it refuse? action

Classification and granularity

Where a nuclear fuel sits among kinds, and how finely a task needs to cut it.

Kind, parents and neighbouring kinds

The classes this thing belongs to and the ones it is next to.

  1. What identifies and describes the kind of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the kind of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the kind of a nuclear fuel is known, and what must it refuse? action

Distinguishing features

What separates a nuclear fuel from the things most often confused with it.

  1. What identifies and describes what distinguishes a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about what distinguishes a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once what distinguishes a nuclear fuel is known, and what must it refuse? action
Form, composition and condition What a nuclear fuel is made of, what shape and size it takes, and what state it is in.

A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.

Form and dimensions

Shape, size, mass and the ranges these take across examples.

Measurable dimensions and their units

The quantities worth recording and the units they are recorded in.

  1. What identifies and describes the dimensions of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the dimensions of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the dimensions of a nuclear fuel is known, and what must it refuse? action

Material and composition

Materials, parts and how they are put together.

Parts and materials

What a nuclear fuel is built from and which parts are replaceable.

  1. What identifies and describes the composition of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the composition of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the composition of a nuclear fuel is known, and what must it refuse? action

Condition and integrity

Wear, damage, health and the difference between working and broken.

Condition, damage and health

How the condition of a nuclear fuel is judged and by whom.

  1. What identifies and describes the condition of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the condition of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the condition of a nuclear fuel is known, and what must it refuse? action
Place and movement Where a nuclear fuel is, how it got there and where it may go (varies).

A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.

Location and placement

Position, containment and the reference frame the position is given in.

Position, container and reference frame

Where a nuclear fuel is, and what that position is measured against.

  1. What identifies and describes the location of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the location of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the location of a nuclear fuel is known, and what must it refuse? action

Movement and transfer

How a nuclear fuel is carried, installed or relocated.

Movement events and constraints

What counts as a movement, what records it and what limits it.

  1. What identifies and describes the movement of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the movement of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the movement of a nuclear fuel is known, and what must it refuse? action
State and lifecycle The states a nuclear fuel passes through and the events that move it between them.

Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.

Lifecycle stages

From coming into existence to ceasing to be one of these.

Stages and transitions

The stages worth naming and what moves a nuclear fuel between them.

  1. What identifies and describes the lifecycle of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the lifecycle of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the lifecycle of a nuclear fuel is known, and what must it refuse? action

Observations and current status

What is observed about a nuclear fuel, how often and by whom.

Observation record

How an observation of a nuclear fuel is recorded so that it can be superseded rather than overwritten.

  1. What identifies and describes an observation of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about an observation of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once an observation of a nuclear fuel is known, and what must it refuse? action
Use and operation What can be done with a nuclear fuel and what it takes to do it.

An agent that can recognise a thing but not act on it has only half a model.

Intended use and function

What a nuclear fuel is for, and what it is used for anyway.

Function, purpose and misuse

The function a nuclear fuel performs and the uses that fall outside it.

  1. What identifies and describes the use of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the use of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the use of a nuclear fuel is known, and what must it refuse? action

Handling and procedure

The steps, skills and tools involved in using a nuclear fuel.

Procedures, skills and required tools

What an agent needs before it can act on a nuclear fuel at all.

  1. What identifies and describes handling a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about handling a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once handling a nuclear fuel is known, and what must it refuse? action

Supply and consumption

Quantities, rates and what running out means.

Consumption, stock and replenishment

How much of a nuclear fuel there is and how fast it goes.

  1. What identifies and describes the supply of a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the supply of a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the supply of a nuclear fuel is known, and what must it refuse? action
Composition, grade and chemical identity What nuclear fuel is made of and how pure the thing in hand is.

Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.

Chemical identity

Formula, structure and the registry numbers that name it unambiguously.

Identity and registry numbers

What identifies this substance across suppliers and regulators.

  1. What formula, structure and registry identifiers name nuclear fuel unambiguously? definition
  2. Which related substances share a name in common use but not an identifier? boundary

Grade, purity and impurities

The specification a batch meets and what else is in it.

Specification and assay

How purity is stated and measured, and which impurities matter.

  1. What grades of nuclear fuel exist, how is purity assayed, and which impurities are limited? measurement
  2. Which use requires which grade, and what happens when a lower grade is substituted? action
Properties and behaviour How nuclear fuel behaves under conditions an agent can measure or change.

Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.

Physical constants

Values that hold for the pure substance, with their conditions.

Constants and conditions

The quantities worth recording and the state they apply in.

  1. What are the defining physical constants of nuclear fuel, in what units and under what conditions? measurement
  2. Which of these values change with grade or form rather than being fixed? boundary

Stability and reactivity

What it reacts with, degrades into, and how it is stored.

Incompatibilities and degradation

What must not meet it, and what it becomes over time.

  1. What is nuclear fuel incompatible with, and what does it degrade into under storage? definition
  2. What storage and handling does that require, and who is competent to do it? action
Hazard classification and regulation How nuclear fuel can harm, and what the law says about holding and moving it.

A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.

Hazard classification

Classified hazards, exposure limits and protective measures.

Classified hazards and limits

The classification, the scheme it belongs to, and the limits set.

  1. How is nuclear fuel classified for hazard, under which scheme, and what exposure limits apply? definition
  2. What protection does handling require, and what must an agent refuse to do without it? action

Regulatory identity and control

Registration, restriction and transport rules by jurisdiction.

Controls and jurisdiction

Where it is restricted and what the restriction attaches to.

  1. Which registrations, restrictions or transport rules cover nuclear fuel, and where? provenance
  2. Does the control attach to the substance, its concentration, or its intended use? boundary
Provenance, evidence and time Where every claim about a nuclear fuel came from and when it held.

A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.

Source and authority

Who said it, on what evidence, and how strongly.

Claim provenance and confidence

The authority behind each claim about a nuclear fuel and how confident it is.

  1. What identifies and describes a claim about a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about a claim about a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once a claim about a nuclear fuel is known, and what must it refuse? action

Time, versions and supersession

When a claim was true, when it was learnt, and what replaced it.

Validity period and supersession

How an old claim about a nuclear fuel is retired without being erased.

  1. What identifies and describes the validity of a claim about a nuclear fuel, and in what units or vocabulary? definition
  2. Who or what asserted this about the validity of a claim about a nuclear fuel, by which method, and when was it true? provenance
  3. What may an agent decide or do once the validity of a claim about a nuclear fuel is known, and what must it refuse? action

What the second pass must settle

  • Which of the bundles below does a real task actually need, and which are ceremony?
  • What does this thing have that the facets do not capture at all?
  • Which neighbouring kind is most often confused with a nuclear fuel, and on what evidence are they told apart?