Decibel - Sigma Knowledge base Browser

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 7466-7470
(instance Decibel SoundPressureLevelUnit)	Merge.kif 7464-7464	DB(A) is an instance of sound pressure level unit

appearance as argument number 2

(termFormat EnglishLanguage Decibel "dB")	Merge.kif 7472-7472
(termFormat EnglishLanguage Decibel "dB(A)")	Merge.kif 7487-7487
(termFormat EnglishLanguage Decibel "decibel (A_weighting)")	Merge.kif 7486-7486
(termFormat EnglishLanguage Decibel "decibel")	Merge.kif 7471-7471

antecedent

(<=> (hearingAcuity ?H (MeasureFn -10 Decibel) (MeasureFn 15 Decibel)) (attribute ?H NormalHearingSensitivity))	Medicine.kif 1771-1775	A human can hear frequency of -10 dB(A)(s) at 15 dB(A)(s) decibels if and only if normal hearing sensitivity is an attribute of the human
(<=> (hearingAcuity ?H (MeasureFn 16 Decibel) (MeasureFn 25 Decibel)) (attribute ?H BorderlineHearingSensitivity))	Medicine.kif 1782-1786	A human can hear frequency of 16 dB(A)(s) at 25 dB(A)(s) decibels if and only if borderline hearing sensitivity is an attribute of the human
(<=> (hearingAcuity ?H (MeasureFn 26 Decibel) (MeasureFn 40 Decibel)) (attribute ?H MildHearingLoss))	Medicine.kif 1793-1797	A human can hear frequency of 26 dB(A)(s) at 40 dB(A)(s) decibels if and only if mild hearing loss is an attribute of the human
(<=> (hearingAcuity ?H (MeasureFn 41 Decibel) (MeasureFn 55 Decibel)) (attribute ?H ModerateHearingLoss))	Medicine.kif 1803-1807	A human can hear frequency of 41 dB(A)(s) at 55 dB(A)(s) decibels if and only if moderate hearing loss is an attribute of the human
(<=> (hearingAcuity ?H (MeasureFn 56 Decibel) (MeasureFn 70 Decibel)) (attribute ?H ModeratelySevereHearingLoss))	Medicine.kif 1814-1818	A human can hear frequency of 56 dB(A)(s) at 70 dB(A)(s) decibels if and only if moderately severe hearing loss is an attribute of the human
(<=> (hearingAcuity ?H (MeasureFn 71 Decibel) (MeasureFn 90 Decibel)) (attribute ?H SevereHearingLoss))	Medicine.kif 1825-1829	A human can hear frequency of 71 dB(A)(s) at 90 dB(A)(s) decibels if and only if severe hearing loss is an attribute of the human
(<=> (hearingAcuity ?H (MeasureFn 91 Decibel) (MeasureFn 200 Decibel)) (attribute ?H ProfoundHearingLoss))	Medicine.kif 1836-1840	A human can hear frequency of 91 dB(A)(s) at 200 dB(A)(s) decibels if and only if profound hearing loss is an attribute of the human
(=> (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 1741-1761	If a musical tone is an instance of musical tone and the frequency of the musical tone is a real number hertz(s) and the sound of the musical tone is another real number dB(A)(s) and the musical tone is located at the place where a human was at the beginning of the time of existence of the musical tone and a third real number is greater than the other real number and the other real number is greater than a fourth real number and the real number is greater than 250 and 8000 is greater than the real number and the human is an instance of human and a process is an instance of listening and the human is an agent of the process, then the human can hear frequency of the third real number dB(A)(s) at the fourth real number dB(A)(s) decibels

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 1741-1761

If a musical tone is an instance of musical tone and the frequency of the musical tone is a real number hertz(s) and the sound of the musical tone is another real number dB(A)(s) and the musical tone is located at the place where a human was at the beginning of the time of existence of the musical tone and a third real number is greater than the other real number and the other real number is greater than a fourth real number and the real number is greater than 250 and 8000 is greater than the real number and the human is an instance of human and a process is an instance of listening and the human is an agent of the process,
then the human can hear frequency of the third real number dB(A)(s) at the fourth real number dB(A)(s) decibels

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