| persistence |
The length of time during which a signal is visible on a radar display.
Ãâó: www.srh.weather.gov/srh/jetstream/append/glossary_...
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|---|---|
| persistence |
Continuation of existing conditions. When a physical parameter varies slowly, the best prediction is often persistence
Ãâó: weather.gov/glossary/glossary.php
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| personal equation |
A systematic observational error due to the characteristics of the observer. The uncertainty in a reading made by an observer may be acertained by a statistical analysis of his or her readings.
Ãâó: www.novalynx.com/glossary-p.html
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| personality |
In the past, it was thought that there was a typical "migraine personality". Now, this is no longer felt to be the case, as the primary factor determining whether or not a person will have migraine or not is heredity, not personality. Nevertheless, hurrying, worrying, and stress can all aggravate migraine.
Ãâó: www.achenet.org/resources/glossary.php
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| personal protective equipment |
Any devices or clothing worn by the worker to protect against hazards in the environment. Examples are respirators, gloves, and chemical splash goggles.
Ãâó: web.mit.edu/environment/ehs/topic/HazCommTerms.htm...
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