Decibel |
appearance as argument number 1 |
(documentation Decibel EnglishLanguage "The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B). It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale. Two signals whose levels differ by one decibel have a power ratio of 101/ 10 (approximately 1.26) or root-power ratio of 101⁄20 (approximately 1.12).[from Wikipedia]") | Merge.kif 7456-7460 | |
(instance Decibel SoundPressureLevelUnit) | Merge.kif 7454-7454 | Decibel e' uma instancia de SoundPressureLevelUnit |
appearance as argument number 2 |
(termFormat EnglishLanguage Decibel "dB") | Merge.kif 7462-7462 | |
(termFormat EnglishLanguage Decibel "dB(A)") | Merge.kif 7477-7477 | |
(termFormat EnglishLanguage Decibel "decibel (A-weighting)") | Merge.kif 7476-7476 | |
(termFormat EnglishLanguage Decibel "decibel") | Merge.kif 7461-7461 |
antecedent |
consequent |
(=> (and (instance ?MT MusicalTone) (soundFrequency ?MT (MeasureFn ?FREQ Hertz)) (loudness ?MT (MeasureFn ?LLB Decibel)) (located ?MT (WhereFn ?H (BeginFn (WhenFn ?MT)))) (greaterThan ?LLIMIT ?LLB) (greaterThan ?LLB ?ULIMIT) (greaterThan ?FREQ 250) (greaterThan 8000 ?FREQ) (instance ?H Human) (instance ?L Listening) (agent ?L ?H)) (hearingAcuity ?H (MeasureFn ?LLIMIT Decibel) (MeasureFn ?ULIMIT Decibel))) |
Medicine.kif 1753-1773 |
|