admittance


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compliance of the middle ear

a measure of the transmission of mechanical energy through a structure (for example, sound through the middle ear).
Synonym(s): admittance

im·ped·ance

(im-pē'dăns),
1. Total opposition to flow. In electricity, when flow is steady, impedance is simply the resistance, for example, the driving pressure per unit flow; when flow is changing, impedance also includes the factors that oppose changes in flow. Thus, deviations of impedance, from simple ohmic resistance because of the effects of capacitance and inductance, become more important in alternating current as the frequency of oscillations increases. In fluid analogies (for example, pulsatile flow of blood, to-and-fro flow of respiratory gas), impedance depends not only on viscous resistance but also on compressibility, compliance, inertance, and the frequency of imposed oscillations.
2. Resistance of an acoustic system to being set in motion.

admittance

(ăd-mit′ăns) [L. admittere, to send to, let go]
In electronics, the ratio of the current to the voltage.
References in periodicals archive ?
Admittance to the exposition is open to the public during this time from Tuesday through Friday, from 10:00 a.
A special timed and dated ticket is required for admittance and can be purchased now through Ticketmaster at (213) 462-2787 or at the LACMA box office after Sunday.
Limited Tenders are invited for Supply of Admittance Level Switch
At a press conference on Thursday, University of Texas at Austin President Bill Powers responded to an external review that shows he helped secure college admittance for some students over the objections of the admissions office.
Admittance to this year's celebration will be strictly by ticket only.
Prize: Winner: 2 x tickets giving admittance to The Edible Garden Show (Alexandra Palace, March 28-30, 2014), plus 1 Heavy Duty Steel Fruit Cage delivered to winner's home within 28 days of competition closing date.
These general admittance tickets are a prize not to be missed, giving you great seats as Beyonce reels off smash hits from her Platinum award-winning albums.
With general admittance tickets sold out, MasterCard are also offering the opportunity to buy VIP packages for the LG Arena dates, Friday 26th April and Saturday 27th April and practically be part of the BeyStage set
The change is due to the admittance of Khaled to the Intensive Care Unit (ICU) at the Al Shami Hospital in Damascus after his health condition deteriorated.
dived more than 20 percent to end limit-down at a 33-year low Wednesday on fears the company may be delisted following its admittance that it has used funds from past acquisitions to hide losses on investments dating back to the 1990s.
In this way, obtaining the value of elastic thickness becomes a technical task, under the principle of a methodological application (Admittance analysis), but in the scientific world the debate about the selection of the method to find the Te even continuous open; under this context, two schools of thought can be find: The school that accepts Admittance analysis developed by Dorman and Lewis (Dorman and Lewis, 1970) as the function that shows the better fit between Topography and Gravity functions and argues that Coherence analysis function overestimates the values of Te, and in the same way, the Coherence's school (Forsyth, 1985) argues that Admittance analysis does not take into account of subsurface loads in computes of Te, and for this reason this latest subestimates Te value.