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<daml:Ontology rdf:about="">
<dc:title>Diving and Diving Equipment</dc:title>
<dc:date></dc:date>
<dc:creator>Sean K. Bechhofer</dc:creator>
<dc:description>An ontology of scuba diving terms and equipment.</dc:description>
<dc:subject></dc:subject>
<daml:versionInfo>1.0</daml:versionInfo>
</daml:Ontology>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#CNS Oxygen Toxicity">
<rdfs:label>CNS Oxygen Toxicity</rdfs:label>
<rdfs:comment>The effects of breathing high-pressure O2. An
extremely dangerous manifestation which can include
convulsion and collapse. Although 1.6 Bar has been held as
the standard limit by NOAA, many divers prefer to restrict
their activities to no more than 1.4 Bar PPO2 for added
safety. Recent tests by the US Navy suggest that CNS O2
Toxicity can be seen as low as 1.3 Bar PPO2. CNS O2 toxicity
can be prevented by a reduction in the PPO2 in the breathing
gas via a different gas mixture or via ascending. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#First Stage">
<rdfs:label>First Stage</rdfs:label>
<rdfs:comment>The part of the regulator that connects to the
cylinder. It acts as pressure reducing valve that reduces
the cylinder pressure (typically 232 Bar) to about 10 Bar.
This is connected to a hoseto the demand valve or second
stage. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Alveoli">
<rdfs:label>Alveoli</rdfs:label>
<rdfs:comment>Small air cells in the lungs. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Body Part"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Poor Mans Trimix">
<rdfs:label>Poor Mans Trimix</rdfs:label>
<rdfs:comment>Helium and Air </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Haemoglobin">
<rdfs:label>Haemoglobin</rdfs:label>
<rdfs:comment>The most important constituent of the red blood
cell is the molecule of haemoglobin, an iron containing
protein that has the ability to unite with oxygen and
transport it to cells throughout the body it also combines
with CO2 and adds in the transport and removal of CO2 from
the body. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Air embolism">
<rdfs:label>Air embolism</rdfs:label>
<rdfs:comment>Bubble of air in the blood stream. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hyperventilation">
<rdfs:label>Hyperventilation</rdfs:label>
<rdfs:comment>The process of rapidly inhaling and exhaling to
purge the body of carbon dioxide, thus decreasing the
natural urge to breath. Hyperventilation is a potentially
dangerous practice and can lead to, hypocapnia, shallow
water blackout, unconsciousness and drowning. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Second Stage">
<rdfs:label>Second Stage</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Shot Line">
<rdfs:label>Shot Line</rdfs:label>
<rdfs:comment>A rope attached to a heavy weight at one end and a
buoy at the other. It is sank onto a wreck or other sea bed
feature and used to guide divers. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Full Face Mask">
<rdfs:label>Full Face Mask</rdfs:label>
<rdfs:comment>A diving system with the regulator built into a
diving mask that completely covers the face, nose and mouth.
Provides extra safety margin with high PO2 exposures (helps
prevent drowning in case of a seizure) and is easily
adaptable to communication units. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Mask"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hypocapnia">
<rdfs:label>Hypocapnia</rdfs:label>
<rdfs:comment>An insufficient amount of CO2 in the blood
(defined as pCO2 levels less than 35 mmHg), often the result
of hyperventilation.Hypocapnia can cause weakness,
faintness, headache, blurred vision and if untreated
possibly unconsciousness. The body's breathing
stimulus results from the monitoring of the CO2 and oxygen
(the oxygen drive is only active at extremely low oxygen
levels, CO2 is the MAJOR controlling factor) levels in the
blood stream. An increase in CO2 and a decrease in oxygen
trigger the body to breathe. As the CO2 levels drop, so does
the body's natural stimulus to breathe. This is one of
the primary causes of shallow water blackout. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Auto Air/Air II">
<rdfs:label>Auto Air/Air II</rdfs:label>
<rdfs:comment>A form of alternate air source build into Buddy
stab jackets. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Manufacturer">
<rdfs:label>Manufacturer</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas analysis">
<rdfs:label>Gas analysis</rdfs:label>
<rdfs:comment>A procedure whereby the fractions of gas in a
breathing mixture are determined. Generally it is used to
determine the fraction of oxygen to within 1 %, to control
the effects of Oxygen toxicity. Most diving operations will
analyse for oxygen only. In more complex Trimixes, it is be
desirable to analyse for the inert gases as well. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hyperbaric">
<rdfs:label>Hyperbaric</rdfs:label>
<rdfs:comment>Dealing with pressures greater than 1 bar. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Multi Level Dive">
<rdfs:label>Multi Level Dive</rdfs:label>
<rdfs:comment>A type of a dive that will not conform to a
maximum depth and time profile. Ideally, such dives are
conducted with the deepest sections first and then the diver
ascends progressively to various shallower depths. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive Time">
<rdfs:label>Dive Time</rdfs:label>
<rdfs:comment>The time from leaving the surface to the first
decompression stop or 6m in no stop dives. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Timing Device">
<rdfs:label>Timing Device</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Instrument"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Visibility">
<rdfs:label>Visibility</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hydrostatic Pressure">
<rdfs:label>Hydrostatic Pressure</rdfs:label>
<rdfs:comment>The pressure exerted underwater by the surrounding
water column. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pressure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Bailout">
<rdfs:label>Bailout</rdfs:label>
<rdfs:comment>A small cylinder, (usually 3-4 litre) commonly
used as an emergency breathing system in commercial diving,
also known as a Pony bottle. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hypothermia">
<rdfs:label>Hypothermia</rdfs:label>
<rdfs:comment>A condition in which the deep tissue or core
temperature of the body falls below the normal physiological
range, approximately 36.9C. Heat loss is the result of
exposure to cold, and most divers are exposed to water
temperatures below that of their body. The rate of the heat
loss is dependent on body area, the difference in the
temperature between the body and the surrounding
environment, body fat, external insulation and the level of
physical exertion. As the core temperature begins to drop
signs of hypothermia will begin to appear. This will trigger
the body to begin producing extra heat, usually in the form
of shivering. If the cooling is allowed to continue the core
temperature will begin to drop and all bodily processes will
slowly grind to a halt as pulse and respiration's slow.
Death will follow if the diver is not treated promptly. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Inflator Hose">
<rdfs:label>Inflator Hose</rdfs:label>
<rdfs:comment>Connects the first stage to a BCD or dry suit.</rdfs:comment>
<oiled:creationDate>15:49:49 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Current Tissue Code">
<rdfs:label>Current Tissue Code</rdfs:label>
<rdfs:comment>The code which identifies a divers current
nitrogen saturation level. Calculated from the last
dive's surfacing code and the surface interval. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement">
<rdfs:label>Measurement</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Staged Decompression">
<rdfs:label>Staged Decompression</rdfs:label>
<rdfs:comment>Decompression performed at specific depths where
the diver remains for a period of time to offgas. This is
the most common form of decompression for divers. Continuous
decompression is generally not available to divers as it
requires a very controlled continuous ascent, generally this
is only available in a decompression chamber, or on dives
that require only a minimum of decompression. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Technical Diving">
<rdfs:label>Technical Diving</rdfs:label>
<rdfs:comment>A general term used to describe more advanced
diving that requires the use of different gas mixtures. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Absolute Pressure">
<rdfs:label>Absolute Pressure</rdfs:label>
<rdfs:comment>Absolute pressure is a measure of the pressure
exerted on an object from all sources; includes water
pressure and atmospheric pressure. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pressure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Lifting Bag">
<rdfs:label>Lifting Bag</rdfs:label>
<rdfs:comment>A bag like device that is inflated underwater to
lift objects from the bottom. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Buddy Breathing">
<rdfs:label>Buddy Breathing</rdfs:label>
<rdfs:comment>An emergency out-of-air procedure where two divers
share one second stage regulator while ascending to the
surface. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Oxygen Toxicity">
<rdfs:label>Oxygen Toxicity</rdfs:label>
<rdfs:comment>Short or long term physiological effects of
elevated partial pressures of Oxygen. Also referred to as
CNS Oxygen Toxicity. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure">
<rdfs:label>Procedure</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Decompression Theory">
<rdfs:label>Decompression Theory</rdfs:label>
<rdfs:comment>The attempt to quantify gas dynamics in living
tissues while exposed to hyper- or hypobaric environments. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Cardiopulmonary Resuscitation">
<rdfs:label>Cardiopulmonary Resuscitation</rdfs:label>
<rdfs:comment>A process utilising the combination of external
heart massage and mouth-to-mouth respiration (artificial
ventilation) to artificially maintain the heartbeat and
respiration of a victim. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Recompression">
<rdfs:label>Recompression</rdfs:label>
<rdfs:comment>The accepted treatment for decompression sickness,
CAGE and Lung over expansion injuries. Treatment is
instituted by returning the diver to a higher pressure
environment in a Hyperbaric chamber. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Bottom Mix">
<rdfs:label>Bottom Mix</rdfs:label>
<rdfs:comment>A breathing mixture used at the deepest portion of
a dive. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Normoxic">
<rdfs:label>Normoxic</rdfs:label>
<rdfs:comment>A breathing mixture that yields a partial pressure
of Oxygen at normal (.21bar) levels. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Decompression Line">
<rdfs:label>Decompression Line</rdfs:label>
<rdfs:comment>A line used as a point of reference or loose
attachment for divers who are decompressing. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Decompression Stop">
<rdfs:label>Decompression Stop</rdfs:label>
<rdfs:comment>The actual time to be spent at the decompression
stop depth. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Twin Set">
<rdfs:label>Twin Set</rdfs:label>
<rdfs:comment>A dual cylinder diving configuration. They may be
ganged together or completely separate. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Atmospheric Pressure">
<rdfs:label>Atmospheric Pressure</rdfs:label>
<rdfs:comment>The local atmospheric pressure produced at a
particular altitude by current weather conditions. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pressure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Ambient pressure">
<rdfs:label>Ambient pressure</rdfs:label>
<rdfs:comment>The sum of air and water pressure at depth
expressed in terms of absolute pressure </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pressure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Demand Valve (DV)">
<rdfs:label>Demand Valve (DV)</rdfs:label>
<rdfs:comment>The part of a regulator that you put in your mouth
and breathe from. It supplies air 'on demand' when
you want it and at the right (absolute) pressure. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Oxygen Cleaned">
<rdfs:label>Oxygen Cleaned</rdfs:label>
<rdfs:comment>Refers to the cleanliness of the system or
component, or more specifically, the absence of
contaminants. Contaminants vary but the most serious are
those that act as a source of combustion such as oil,
grease, paint, fingerprints, soot, lint, dust, metal
particles, rust, cleaning solvents, and cleaning detergents.
New SCUBA equipment is generally NOT oxygen clean. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Wet Suit Jacket">
<rdfs:label>Wet Suit Jacket</rdfs:label>
<rdfs:comment>A jacket, normally combined with a Long John or
full suit. </rdfs:comment>
<oiled:creationDate>15:54:22 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Wet Suit"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Low Pressure Port">
<rdfs:label>Low Pressure Port</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>2002-01-09T17:59:33Z</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Port"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Thermocline">
<rdfs:label>Thermocline</rdfs:label>
<rdfs:comment>A subsurface layer of water characterised by a
rapid change in temperature and density in a narrow range of
depth. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Barotrauma">
<rdfs:label>Barotrauma</rdfs:label>
<rdfs:comment>Injuries resulting from the inability of expanding
gasses to exit the body. For example, ear drum rupture, lung
over expansion injury, pneumothorax, squeeze, sinusitis. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hyperthermia">
<rdfs:label>Hyperthermia</rdfs:label>
<rdfs:comment>Inadequate loss of heat from the body resulting in
a rise in core temperature.This is most commonly seen in
areas with high ambient temperatures and divers with low
body fluid levels. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Physiology">
<rdfs:label>Physiology</rdfs:label>
<rdfs:comment>The study of the body's actions and
reactions. Diving physiology is primarily concerned with the
effects of water pressure on the diver. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Celsius">
<rdfs:label>Celsius</rdfs:label>
<rdfs:comment>A unit of measure for temperature. Celsius =
(Fahrenheit - 32) / 1.8 or 5/9 (Fahrenheit-32) </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#High Pressure Hose">
<rdfs:label>High Pressure Hose</rdfs:label>
<rdfs:comment>Connects the first stage to an SPG or Computer,
allowing monitoring of the cylinder pressure.</rdfs:comment>
<oiled:creationDate>15:50:36 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#High Pressure Port">
<rdfs:label>High Pressure Port</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>2002-01-09T17:59:26Z</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Port"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Narcosis">
<rdfs:label>Narcosis</rdfs:label>
<rdfs:comment>The intoxicating effects of breathing inert gases,
such as Argon, Nitrogen or Hydrogen when the diver is
exposed to elevated partial pressures at depth. The
condition is generally alleviated upon ascending, or by
changing the mixture ratios to reduce the partial pressure
of the offending gas. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Recompression Chamber">
<rdfs:label>Recompression Chamber</rdfs:label>
<rdfs:comment>Hyperbaric chamber </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hydrostatic Test">
<rdfs:label>Hydrostatic Test</rdfs:label>
<rdfs:comment>A test that is required every five years on SCUBA
cylinders. This test involves pressurising the cylinder to
test pressure. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Bottom Time">
<rdfs:label>Bottom Time</rdfs:label>
<rdfs:comment>Often calculated from the start of the
diver's descent until the beginning of his ascent, or
to the safety stop or first decompression stop. Note: This
measurement varies widely from organisation to organisation,
and some divers do not calculate the safety stop into their
total bottom time. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Console">
<rdfs:label>Console</rdfs:label>
<rdfs:comment> A term often used to describe the housing for
instruments such as the SPG, depth gauge and compass. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Submersible Pressure Gauge"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Depth Gauge"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Square Profile Dive">
<rdfs:label>Square Profile Dive</rdfs:label>
<rdfs:comment>A type of dive that involves staying at one
particular depth for the entire bottom time and then
ascending directly to the surface. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Redundancy">
<rdfs:label>Redundancy</rdfs:label>
<rdfs:comment>The concept of carrying fully functional backup
systems to replace primaries in the event of failure. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Nitrogen Narcosis">
<rdfs:label>Nitrogen Narcosis</rdfs:label>
<rdfs:comment>Loss of judgement and motor skills caused by the
narcotic effect of breathing the nitrogen component of any
breathing gas at elevated partial pressures (i.e. at depth).
The condition is alleviated upon ascending. Also known as
Rapture of the deep or narcs. Nitrogen narcosis, a common
form of inert gas narcosis, can be incurred at depths as
shallow as 30m, and possibly even shallower by individuals
who are more susceptible. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dump Valve">
<rdfs:label>Dump Valve</rdfs:label>
<rdfs:comment>A term for the exhaust fittings on dry suits, lift
bags and BC's. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hyperbaric Chamber">
<rdfs:label>Hyperbaric Chamber</rdfs:label>
<rdfs:comment>A recompression chamber. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#A Clamp">
<rdfs:label>A Clamp</rdfs:label>
<rdfs:comment>A type of fitting for connecting the regulator 1st
stage to the cylinder pillar valve. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#ABLJ">
<rdfs:label>ABLJ</rdfs:label>
<rdfs:comment>Adjustable Buoyancy Life Jacket. An older style of
buoyancy device still used by some divers. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#CAGE">
<rdfs:label>CAGE</rdfs:label>
<rdfs:comment>Coronary Arterial Gas Embolism. A lung
over-expansion injury that involves air bubbles escaping
from the lungs into the pulmonary capillaries. The bubbles
can then travel to the heart and eventually follow the
circulatory route to the brain. In severe cases, CAGE can be
fatal. Treatment is immediate O2 breathing and transport to
a recompression chamber. Also known as air embolism.
Symptoms may be similar to DCS. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Boat">
<rdfs:label>Boat</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#EANx">
<rdfs:label>EANx</rdfs:label>
<rdfs:comment>Enriched Air NITROX. A mixture containing more
than 21% oxygen. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive">
<rdfs:label>Dive</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Fins">
<rdfs:label>Fins</rdfs:label>
<rdfs:comment>Worn on the feet for faster swimming and to
increase maneuverability. They are not called flippers...
Flipper is a dolphin.</rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Mask">
<rdfs:label>Mask</rdfs:label>
<rdfs:comment>A mask provides an air space around the eyes
allowing the diver to see underwater.</rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Port">
<rdfs:label>Port</rdfs:label>
<rdfs:comment>A connection for hoses on the the first stage of a
regulator. The first stage may contain 4-6 of these and they
are usually marked with LP (low pressure) or HP (High
Pressure). </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Maximum Depth">
<rdfs:label>Maximum Depth</rdfs:label>
<rdfs:comment>The deepest depth reached during a dive. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Residual Nitrogen">
<rdfs:label>Residual Nitrogen</rdfs:label>
<rdfs:comment>The residual nitrogen (above normoxic levels) left
in the body as a result of a previous dive. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Long John">
<rdfs:label>Long John</rdfs:label>
<rdfs:comment>A Long John or Farmer John is a sleeveless wetsuit
with long legs, generally worn under a shortie or jacket.</rdfs:comment>
<oiled:creationDate>15:52:55 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Wet Suit"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Repetitive Dive">
<rdfs:label>Repetitive Dive</rdfs:label>
<rdfs:comment>Any dive following a previous dive within a
particular time frame. This will vary according to the
particular decompression model being used. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas Consumption">
<rdfs:label>Gas Consumption</rdfs:label>
<rdfs:comment>(RMV)*(Bar) = gas consumption at depth. Total gas
required for a dive= the sum of the gas required at each
stage of the dive. Gas required at each stage of the
dive=(Bar) x (RMV) x (Time) x (Work modifier). Bar= Pressure
at each stage Bar=(depth / 10)+1 RMV= Respiratory Minute
Volume (in litres per minute) Time= Time in minutes spent at
that stage/depth Work=A modifier to take into account that
you breath more when working. 1, at rest 1.5 working mildly
2 working moderately 3-5 working heavily Descent
consumption = average depth plus time spent descending. Gas
consumption during ascent is calculated by average depth
method:(max. depth + 1st deco stop depth)/2. This average
depth is then used in the gas consumption equation. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification">
<rdfs:label>Qualification</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Restriction daml:minCardinalityQ="1">
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#awarded_by"/>
<daml:hasClassQ>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Organisation"/>
</daml:hasClassQ>
</daml:Restriction>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hypoxia">
<rdfs:label>Hypoxia</rdfs:label>
<rdfs:comment>A Condition brought on due to an insufficient
Partial Pressure of Oxygen (PPO2) in a breathing gas. A
failure of the tissues to receive sufficient Oxygen. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pony Bottle">
<rdfs:label>Pony Bottle</rdfs:label>
<rdfs:comment>A small cylinder commonly used as an emergency
breathing system, also known as a Bailout Bottle. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Surfacing Code">
<rdfs:label>Surfacing Code</rdfs:label>
<rdfs:comment>The Code describing the degree of tissue
saturation on surfacing from a dive. BSAC use A (no
saturation) to G fully saturated). </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Mixed Gases">
<rdfs:label>Mixed Gases</rdfs:label>
<rdfs:comment>Any mixture of gas that deviates from normal
(normoxic) atmospheric air. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Ascent Rate">
<rdfs:label>Ascent Rate</rdfs:label>
<rdfs:comment>The speed in which a diver ascends. BSAC recommend
15m/min up to 6m and then 6m/min for the final 6m. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Carbon Dioxide (CO2)">
<rdfs:label>Carbon Dioxide (CO2)</rdfs:label>
<rdfs:comment>A gas generated by the metabolic process of
generating energy to sustain life. Carbon Dioxide (CO2) is
normally regulated through the breathing process where CO2
(with its high dissolved PPCO2) is moved out of the
bloodstream, and Oxygen (with its high ambient PPO2) is
moved into the bloodstream.In normoxic air the percentage of
CO2 is negligible, about 0.03%. CO2 appears to be a factor
in DCS, narcosis, hyperoxia and Hypoxia. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Decompression Stop Dive">
<rdfs:label>Decompression Stop Dive</rdfs:label>
<rdfs:comment>A dive which contains mandatory in water
decompression or"offgassing" stops. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Inert Gases">
<rdfs:label>Inert Gases</rdfs:label>
<rdfs:comment>Those gases present in a breathing mixture which
are not metabolised. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition">
<rdfs:label>Medical Condition</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Full Wet Suit">
<rdfs:label>Full Wet Suit</rdfs:label>
<rdfs:comment>A suit with long arms and legs. May be combined
with a shortie or jacket in colder water.</rdfs:comment>
<oiled:creationDate>15:53:36 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Wet Suit"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Regulator">
<rdfs:label>Regulator</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Second Stage"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#High Pressure Hose"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Console"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#First Stage"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Port"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Restriction>
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClass>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Inflator Hose"/>
</daml:hasClass>
</daml:Restriction>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Rule of thirds">
<rdfs:label>Rule of thirds</rdfs:label>
<rdfs:comment>A rule used primarily by cave and wreck divers
that basically states that after having consumed 1/3 of your
gas supply you should begin your exit from the cave/wreck.
The remaining 2/3 of the gas supply is left for the exit,
ascent and any emergency that may arise. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Oxygen Service">
<rdfs:label>Oxygen Service</rdfs:label>
<rdfs:comment>Refers to the suitability of a system or component
for use in an oxygen environment. Oxygen service requires
both oxygen clean and oxygen compatible components. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Apnea">
<rdfs:label>Apnea</rdfs:label>
<rdfs:comment>Cessation of breathing for short intervals of
time. If left untreated it will proceed to respiratory
arrest. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Argon">
<rdfs:label>Argon</rdfs:label>
<rdfs:comment>An inert gas which is very narcotic in the normal
diving range, twice that of Nitrogen. It is a good insulator
however and sometimes used in diving suits. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Bends">
<rdfs:label>Bends</rdfs:label>
<rdfs:comment>See: DCS </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Buddy">
<rdfs:label>Buddy</rdfs:label>
<rdfs:comment>Your diving partner. BSAC strongly recommend that
divers always dive in pairs for safety. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Saturation">
<rdfs:label>Saturation</rdfs:label>
<rdfs:comment>When a tissue has absorbed all of a given gas at a
given depth that it can, it is considered saturated. The
amount of dissolved gas a tissue can hold is dependent on
the depth at which it is ongassing. The deeper the depth,
the greater the amount of ongassing that can occur. As a
rule it takes 6 halftimes for a tissue to become 99%
saturated. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Diluent">
<rdfs:label>Diluent</rdfs:label>
<rdfs:comment>An inert gas, usually nitrogen or helium, that
provides volume in a breathing mix to ensure the partial
pressure of oxygen remains within safe limits of exposure. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#SCUBA">
<rdfs:label>SCUBA</rdfs:label>
<rdfs:comment>Self Contained Underwater Breathing Apparatus. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#SEEDS">
<rdfs:label>SEEDS</rdfs:label>
<rdfs:comment>A BSAC pneumonic that can help to remember the
components of a dive briefing. It stands for: S=Safety -
safety aspects of dive e.g., currents, visibility E=Exercise
- what the dive plan is E=Equipment - special equipment
e.g., SMBs D=Discipline - leadership, positioning etc
S=Signals - signals that will be used in the dive </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Watch">
<rdfs:label>Watch</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Timing Device"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Partial Pressure">
<rdfs:label>Partial Pressure</rdfs:label>
<rdfs:comment>The portion of the total gas pressure exerted by a
single gas in a breathing mixture, expressed as Pg for an
unknown gas or PO2 in the case of Oxygen. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pressure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pressure">
<rdfs:label>Pressure</rdfs:label>
<rdfs:comment>Absolute Pressure - Absolute pressure is a measure
of the pressure exerted on an object from all sources;
includes water (hydrostatic) and air (atmospheric) pressure.
Atmospheric Pressure -The measure of the weight of the
surrounding column of air. At Sea level this is about One
bar. Hydrostatic Pressure - The measure of the weight of
the surrounding column of water. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#On Gassing">
<rdfs:label>On Gassing</rdfs:label>
<rdfs:comment>As a person breathes air or any mixture of gases,
a portion of those gases are absorbed through the lungs into
the blood stream. Ongassing occurs primarily in the alveoli
of the lungs (though it does occur at all levels, lungs,
blood, tissues). This absorbed (or dissolved) gas is carried
dissolved in the bloodstream and diffuses from areas of high
partial pressure to areas of lower partial pressure
throughout the various tissues (or compartments). As oxygen
is metabolised it is generally not considered to be
ongassing but does have limits as to how much can be
absorbed safely. Excessively high partial pressures of
oxygen can be absorbed and contribute to DCS, so ongassing
as a term can be applied to oxygen. However, the partial
pressures that can cause this are higher than those
considered safe in relation to CNS O2 toxicity, so this is
more an academic concern, rather than a real concern. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive profile">
<rdfs:label>Dive profile</rdfs:label>
<rdfs:comment>The depth/time measurements of a particular dive
usually expressed in a graphical form. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Buoyancy">
<rdfs:label>Buoyancy</rdfs:label>
<rdfs:comment>The upward force equal to the weight of water
which is being displaced by an immersed object. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Test Pressure">
<rdfs:label>Test Pressure</rdfs:label>
<rdfs:comment>The pressure to which a cylinder is taken to,
during hydrostatic testing. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pressure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Fahrenheit">
<rdfs:label>Fahrenheit</rdfs:label>
<rdfs:comment>A unit of measure for temperature. Fahrenheit (1.8
* C) + 32 or 9/5C +32) </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hypercapnea">
<rdfs:label>Hypercapnea</rdfs:label>
<rdfs:comment>An undue amount of CO2 in the blood caused by
improper breathing habits and incomplete scrubbing of
breathing gases in closed circuit re-breathers or excessive
amounts in the breathing mixture. As concentrations of CO2
approach a PPCO2 of 0.10ATM symptoms begin to appear.
Confusion & drowsiness, then muscle spasms, rigidity and
unconsciousness. High PPO2, high gas density and high
breathing resistance add to the severity of Hypercapnea.
Treatment is a reduction of the PPCO2 and administration of
oxygen. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pulmonary Oxygen Toxicity">
<rdfs:label>Pulmonary Oxygen Toxicity</rdfs:label>
<rdfs:comment>The cumulative effect (over time) of being exposed
to Oxygen while the body is under pressure. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Submersible Pressure Gauge">
<rdfs:label>Submersible Pressure Gauge</rdfs:label>
<rdfs:comment>The SPG or Submersible Pressure Gauge, is
sometimes also referred to, somewhat incorrectly, as the
contents gauge. The SPG allows you to monitor the air
pressure within your tank and gauge the quantity of air
remaining. The SPG is often combined within a housing
including other gauges like depth, temperature and a compass
and the complete unit is referred to as a console. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Instrument"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hyperoxia">
<rdfs:label>Hyperoxia</rdfs:label>
<rdfs:comment>Elevated oxygen levels in the tissues. See oxygen
toxicity, CNS oxygen toxicity. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Shortie">
<rdfs:label>Shortie</rdfs:label>
<rdfs:comment>A short wet suit, worn either on its own in warmer
water, or over the top of a long john or full suit in colder water.</rdfs:comment>
<oiled:creationDate>15:52:21 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Wet Suit"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dyspnea">
<rdfs:label>Dyspnea</rdfs:label>
<rdfs:comment>Difficulty in breathing, in divers it can result
from an increase in depth or density of breathing gas. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Cylinder Markings">
<rdfs:label>Cylinder Markings</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pillar Valve">
<rdfs:label>Pillar Valve</rdfs:label>
<rdfs:comment>The metal fitting on the neck of a cylinder. It
consists of an on/off valve and a connection point for the
regulator 1st stage. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Tidal Volume">
<rdfs:label>Tidal Volume</rdfs:label>
<rdfs:comment>The quantity of gas that is inhaled and exhaled
with each breath. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Stage Bottle">
<rdfs:label>Stage Bottle</rdfs:label>
<rdfs:comment>Extra breathing cylinder carried in addition to
the main gas supply. Usually carried on front or side mount
clips, but may be attached to a decompression line. These
cylinders are designed to provide additional bottom mix gas
supply or to provide alternate mixtures for decompression
efficiency. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#AD">
<rdfs:label>AD</rdfs:label>
<rdfs:comment>Advanced Diver. A BSAC diver qualification. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#AI">
<rdfs:label>AI</rdfs:label>
<rdfs:comment>Advanced Instructor. A BSAC instructor
qualification </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#AV">
<rdfs:label>AV</rdfs:label>
<rdfs:comment>Artificial Ventilation </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#CI">
<rdfs:label>CI</rdfs:label>
<rdfs:comment>Club Instructor. A BSAC instructor qualification </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hypobaric">
<rdfs:label>Hypobaric</rdfs:label>
<rdfs:comment>Dealing with pressures less than 1 Bar </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Snorkel">
<rdfs:label>Snorkel</rdfs:label>
<rdfs:comment>A breathing tube enabling the user to breathe when
lying face down on the surface of the water. Snorkels can be
useful for preserving air during surface swims to and from
dive sites and are used during breath-hold or skin diving. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment">
<rdfs:label>Equipment</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Squeeze">
<rdfs:label>Squeeze</rdfs:label>
<rdfs:comment>A pressure-related situation resulting from the
failure to equalise on descent. Air-filled cavities such as
sinuses, the middle ear, mask and dry-suits are the most
commonly affected. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Cyanosis">
<rdfs:label>Cyanosis</rdfs:label>
<rdfs:comment>A bluish discoloration of the skin that results
from an oxygen deficiency in the blood. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Organisation">
<rdfs:label>Organisation</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#No Stop Dive">
<rdfs:label>No Stop Dive</rdfs:label>
<rdfs:comment>A dive in which there are no decompression
or"offgassing" stops </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Exposure Suit">
<rdfs:label>Exposure Suit</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>16:02:11 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Computer">
<rdfs:label>Computer</rdfs:label>
<rdfs:comment>An elecronic device either worn on the wrist or
console mounted which constantly displays information such
as current depth, maximum depth, dive time and remaining no
stop time. It can also calculate the decompression
requirements for the dive and provide other information such
as temperature ascent rates etc... </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Depth Gauge"/>
</rdfs:subClassOf>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Timing Device"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Body Part">
<rdfs:label>Body Part</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Depth Gauge">
<rdfs:label>Depth Gauge</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Instrument"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Respiration">
<rdfs:label>Respiration</rdfs:label>
<rdfs:comment>The voluntary or involuntary movement of gas into
and out of the lungs and the associated metabolic process of
oxygen and carbon-dioxide transfer. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Thirds Rule">
<rdfs:label>Thirds Rule</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<daml:sameClassAs>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Rule of thirds"/>
</daml:sameClassAs>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Bradycardia">
<rdfs:label>Bradycardia</rdfs:label>
<rdfs:comment>A heartbeat of less than 60 beats per minute. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Anoxia">
<rdfs:label>Anoxia</rdfs:label>
<rdfs:comment>The total lack of Oxygen to the tissues. Also see
Hypoxia </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Backup">
<rdfs:label>Backup</rdfs:label>
<rdfs:comment>The concept of carrying fully functional backup
systems to replace primaries in the event of failure. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Octopus">
<rdfs:label>Octopus</rdfs:label>
<rdfs:comment>An extra breathing second stage for use in the
event of a failure or an out-of-gas emergency with a diving
buddy. They are usually coloured yellow. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Second Stage"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Tachycardia">
<rdfs:label>Tachycardia</rdfs:label>
<rdfs:comment>A rapid heartbeat of over 100 beats per minute. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Descent Rate">
<rdfs:label>Descent Rate</rdfs:label>
<rdfs:comment>The speed in which a diver descends. BSAC
recommend 30m/min. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Wet Suit">
<rdfs:label>Wet Suit</rdfs:label>
<rdfs:comment>An exposure suit in which the diver is kept warm
by a layer of trapped water. Generally made of neoprene and
available in a range of thicknesses for different water
temperatures. Usually used in temperate waters. May consist
of a number of different pieces worn in combination, for
example a shortie and longjohn. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Exposure Suit"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dry Suit">
<rdfs:label>Dry Suit</rdfs:label>
<rdfs:comment>A completely waterproof exposure suit for use in
cold water conditions. The diver stays dry and insulation is
thus provided by the layer of air trapped between the body
and the suit. Additional layers of protection, such as a
woolly bear, can be worn underneath. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Exposure Suit"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Stop Dive">
<rdfs:label>Stop Dive</rdfs:label>
<rdfs:comment>A dive which requires stops at certain depths for
a set period of time. This is done on the final ascent and
allows sufficient time to decompress. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hydrox">
<rdfs:label>Hydrox</rdfs:label>
<rdfs:comment>Breathing gas consisting of a mixture of Hydrogen
and Oxygen. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Safety Stop">
<rdfs:label>Safety Stop</rdfs:label>
<rdfs:comment>A procedure that calls for a making a safety stop
at 6m for 1-3 minutes at the end of every dive for degassing
purposes. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Ascent Check Depth">
<rdfs:label>Ascent Check Depth</rdfs:label>
<rdfs:comment>A point reached during the ascent where dive time
is checked against the plan. This is usually at the first
decompression stop or 6m for no-stop dives. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Off Gassing">
<rdfs:label>Off Gassing</rdfs:label>
<rdfs:comment>The process of eliminating excess dissolved gasses
from the body. The reverse of ongassing, more commonly
referred to as decompression. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Surface Interval">
<rdfs:label>Surface Interval</rdfs:label>
<rdfs:comment>The time from leaving the water at the end of one
dive to leaving the surface on the next dive. A minimum of
one hour is strongly recommended. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dehydration">
<rdfs:label>Dehydration</rdfs:label>
<rdfs:comment>The loss of bodily fluids, can contribute to DCS.
In divers this can be brought about by diving with a
hangover, consuming caffeinated beverages prior to diving,
overexertion, or diving when ill. Immersion in water also
produces a diuresis (production of urine by the kidneys)
that can contribute to diver dehydration. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Nitrox">
<rdfs:label>Nitrox</rdfs:label>
<rdfs:comment>Literally, any breathing gas consisting of a
mixture of Nitrogen and Oxygen. Generically referred to when
the Oxygen percentage in the mix is in the range of 21-50%. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Otitis">
<rdfs:label>Otitis</rdfs:label>
<rdfs:comment>Otitis Externa - Inflammation of the external
auditory canal due to infection. Otitis Media - Inflammation
of the middle ear. This condition generally requires
treatment with antibiotics and may cause impairment of
balance. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Residual Volume">
<rdfs:label>Residual Volume</rdfs:label>
<rdfs:comment>The quantity of air remaining in the lungs after a
forceful exhalation. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas Mixing">
<rdfs:label>Gas Mixing</rdfs:label>
<rdfs:comment>Gas mixing or blending is accomplished via one of
four different ways: 1. By partial pressure,where only the
pressures of the constituent gases are considered in
determining their percentages in the final mix. 2. By
continuous flow, where the appropriate amount of each gas is
metered and injected into a gas flow stream, and then
delivered to a mixing chamber or compressor inlet. 3. By
volume, where known volumes of each gas are delivered to a
container near atmospheric pressure, then compressed into
high pressure cylinders. 4. By weight, where the gases are
proportioned in the final mixture by the weight that each
gas adds to the initial weight of the container. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Manifold">
<rdfs:label>Manifold</rdfs:label>
<rdfs:comment>A device that connects two cylinders of a twin set
together. It may contain its own 'isolation' valve
in the middle. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#AAS">
<rdfs:label>AAS</rdfs:label>
<rdfs:comment>Alternate Air Source, second demand valve or
regulator, sometimes referred to as an octopus. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#ACI">
<rdfs:label>ACI</rdfs:label>
<rdfs:comment>Assistant Club Instructor. A BSAC instructor
qualification. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#ACR">
<rdfs:label>ACR</rdfs:label>
<rdfs:comment>Air Consumption Rate, same as SAC, Surface Air
Consumption. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#BCD">
<rdfs:label>BCD</rdfs:label>
<rdfs:comment>Buoyancy Control Device, sometimes called a stab
jacket (stability). An inflatable jacket worn by divers.
This privides buoyance and holds the diving cylinder. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Bar">
<rdfs:label>Bar</rdfs:label>
<rdfs:comment>A measure of pressure, 1 bar = atmospheric
pressure or about 15lbs per square inch. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#CNS">
<rdfs:label>CNS</rdfs:label>
<rdfs:comment>Central nervous system </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#CPR">
<rdfs:label>CPR</rdfs:label>
<rdfs:comment>Cardio Pulmonary Resuscitation </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#DCS">
<rdfs:label>DCS</rdfs:label>
<rdfs:comment>Decompression sickness. A condition caused by
Nitrogen bubbles forming in various parts of the body when a
diver ascends too quickly and/or exceeds their ceiling. Also
known as the bends The onset of DCS can be within minutes of
the ascent, though usually within 1 to 3 hours and
infrequently up to 12 hours. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#DIN">
<rdfs:label>DIN</rdfs:label>
<rdfs:comment>(Deutsches Institut für Normung, or German
Institute for Standardisation). Valve and regulator fittings
featuring the"captured o-ring" design whereby the
regulator is screwed into the cylinder valve. This is
primarily used on the continent and for pressures exceeding
232 Bar. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#EAD">
<rdfs:label>EAD</rdfs:label>
<rdfs:comment>Equivalent Air Depth. A means of equating gas
mixes (such as Nitrox) to air. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#END">
<rdfs:label>END</rdfs:label>
<rdfs:comment>Equivalent Narcosis Depth. Means of equating the
relative narcotic influence of inert gases to air. See EAD </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#FSW">
<rdfs:label>FSW</rdfs:label>
<rdfs:comment>Depth measured in feet of sea water. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#GPS">
<rdfs:label>GPS</rdfs:label>
<rdfs:comment>Global Positioning System. An electronic
navigation device that uses satellites to give a precise
display of your position. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas">
<rdfs:label>Gas</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#MDT">
<rdfs:label>MDT</rdfs:label>
<rdfs:comment>Maximum Dive Time. The length of time that may be
spent at a given depth without being required to make a
mandatory decompression stop. Also referred to as No-Stop
Time and Non-Decompression Time. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#MGR">
<rdfs:label>MGR</rdfs:label>
<rdfs:comment>Mixed Gas Rebreather. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#PSI">
<rdfs:label>PSI</rdfs:label>
<rdfs:comment>Pounds per square inch. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#RIB">
<rdfs:label>RIB</rdfs:label>
<rdfs:comment>Rigid Inflatable Boat, commonly used by divers. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Boat"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#RMV">
<rdfs:label>RMV</rdfs:label>
<rdfs:comment>Respiratory Minute Volume. The amount of air that
is consumed in one minute on the surface.This is expressed
in cubic feet per minute. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#SAC">
<rdfs:label>SAC</rdfs:label>
<rdfs:comment>Surface Air Consumption. The rate of underwater
gas consumption converted to an equivalent surface rate,
commonly measured in litres per minute. The average is about
25 l/min. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Measurement"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#SMB">
<rdfs:label>SMB</rdfs:label>
<rdfs:comment>Surface Marker Buoy. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Tables">
<rdfs:label>Tables</rdfs:label>
<rdfs:comment>These are tables from which you calculate how long
and how deep you can safely dive and also details of any
decompression stops you have to make on your ascent. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Trimix">
<rdfs:label>Trimix</rdfs:label>
<rdfs:comment>A breathing mixture of three gases, usually
Oxygen, Helium and Nitrogen. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Buddy Check">
<rdfs:label>Buddy Check</rdfs:label>
<rdfs:comment>A pre-dive check where two divers familiarise
themselves and check each others equipment prior to a dive. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Procedure"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Carbon Monoxide">
<rdfs:label>Carbon Monoxide</rdfs:label>
<rdfs:comment>Carbon monoxide (CO) is produced from the
incomplete combustion of organic fuels, most commonly
gasoline engines. Carbon monoxide is a colourless,
odourless, tasteless gas, and it is largely because CO
cannot be readily detected that it is so dangerous. Inhaled
CO will bond with haemoglobin with an affinity 200 times
greater than oxygen. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Pneumothorax">
<rdfs:label>Pneumothorax</rdfs:label>
<rdfs:comment>A lung over expansion injury that involves air
bubbles escaping into the chest area and causing lung
collapse. This can result from ascending to rapidly and/or
breath holding. </rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Medical Condition"/>
</rdfs:subClassOf>
</daml:Class>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Instrument">
<rdfs:label>Instrument</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>12:43:10 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:subClassOf>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:subClassOf>
</daml:Class>
<daml:ObjectProperty rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#made_by">
<rdfs:label>made_by</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>18:02:39 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<daml:inverseOf rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#makes"/>
</daml:ObjectProperty>
<daml:ObjectProperty rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#awarded_by">
<rdfs:label>awarded_by</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:domain>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdfs:domain>
<rdfs:range>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Organisation"/>
</rdfs:range>
</daml:ObjectProperty>
<daml:ObjectProperty rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#makes">
<rdfs:label>makes</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>18:02:34 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdfs:domain>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Manufacturer"/>
</rdfs:domain>
<rdfs:range>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Equipment"/>
</rdfs:range>
</daml:ObjectProperty>
<daml:ObjectProperty rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#has_part">
<rdfs:label>has_part</rdfs:label>
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
</daml:ObjectProperty>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#BSAC 88 Tables">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>18:07:11 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Tables"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Nitrogen">
<rdfs:comment>A gas that makes up approximately 78% of the air
we breathe. It is usually the gas responsible for DCS when
diving on compressed air. It also causes narcosis from about
30m </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Sports Diver">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#BSAC"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Advanced Diver">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#BSAC"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Master Scuba Diver">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#PADI"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Rescue Diver">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#PADI"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Divemaster">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#PADI"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Dive Leader">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#BSAC"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#US Navy Tables">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>18:06:36 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Tables"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Assistant Instructor">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#PADI"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#BSAC">
<rdfs:comment>British Sub Aqua Club. </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Organisation"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#MK16">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>18:06:05 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#First Stage"/>
</rdf:type>
<rdf:type>
<daml:Restriction daml:cardinalityQ="5">
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClassQ>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#High Pressure Port"/>
</daml:hasClassQ>
</daml:Restriction>
</rdf:type>
<rdf:type>
<daml:Restriction daml:cardinalityQ="2">
<daml:onProperty rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#has_part"/>
<daml:hasClassQ>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Low Pressure Port"/>
</daml:hasClassQ>
</daml:Restriction>
</rdf:type>
<ns0:made_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#Scubapro"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Neon">
<rdfs:comment>A gas sometimes used in diving. </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#PADI">
<rdfs:comment>Professional Association of Diving Instructors </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Organisation"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#R380">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>18:05:44 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Second Stage"/>
</rdf:type>
<ns0:made_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#Scubapro"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#IANTD">
<rdfs:comment>International Association of Nitrox and Technical
Divers </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Organisation"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Mares">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Manufacturer"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Club Diver">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#BSAC"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Recreational Dive Planner">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>18:06:56 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Tables"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#OW">
<rdfs:comment>Open Water. A PADI diver qualification </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#PADI"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#First Class Diver">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#BSAC"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Hydrogen">
<rdfs:comment>A gas that is easily eliminated from the body in
long dives and builds up fast in short dives. It has a
slight narcosis affect at depth and cause a large voice
distortion: </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Scubapro">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Manufacturer"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Heliox">
<rdfs:comment>A breathing gas consisting of a mixture of Helium
and Oxygen. </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Helium">
<rdfs:comment>A gas which is easily eliminated from body in long
dives and builds up fast in short dives. It is the least
narcotic of standard gases and causes that "micky
mouse" voice effect.It is a poor insulator and
moderately costly. </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Oxygen">
<rdfs:comment>A colourless, tasteless, odourless, non-flammable
gas that accounts for 20.95% of the air we breathe. </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#AOW">
<rdfs:comment>Advanced Open Water. A PADI diver qualification </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#PADI"/>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Air">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Gas"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#SAA">
<rdfs:comment>Sub Aqua Association. A UK based Diving club. </rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Organisation"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Suunto">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Manufacturer"/>
</rdf:type>
</rdf:Description>
<rdf:Description rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Instructor">
<rdfs:comment></rdfs:comment>
<oiled:creationDate>15:49:03 23.08.2001</oiled:creationDate>
<oiled:creator>seanb</oiled:creator>
<rdf:type>
<daml:Class rdf:about="http://potato.cs.man.ac.uk/ontologies/diving#Qualification"/>
</rdf:type>
<ns0:awarded_by rdf:resource="http://potato.cs.man.ac.uk/ontologies/diving#PADI"/>
</rdf:Description>
</rdf:RDF>