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{{Sound measurements}} ...uared [[sound pressure]]. The [[International System of Units|SI unit]] of sound exposure is the [[Pascal (unit)|pascal]] squared second (Pa²·s). ...

...erature of the air]] around an [[aircraft]], but unaffected by the passage of the aircraft through it.<ref name = "FAA Definition">{{Cite web | url=http: ...ature is used in many calculations pertaining to [[flight planning]], some of them being [[takeoff]] performance, [[density altitude]], [[Cruise (flight) ...

...agnitude]]s of certain quantities referenced to a standard reference value of the same type. ...er by the inverse of the conductor's resistance), etc., with commonly used units [[neper]] (Np) or [[decibel]] (dB). ...

...amable">Vázquez-Espí, C., & Liñán, A. (2001). Fast, non-diffusive ignition of a gaseous reacting mixture subject to a point energy source. Combustion The ...ly heated reactive medium." Asymptotic Analysis and the Numerical Solution of Partial Differential Equations 130 (1991).</ref> ...

...nsitions to [[turbulence]]. The waves are initiated when some disturbance (sound, for example) interacts with leading edge roughness in a process known as r ..., originally discovered by [[Ludwig Prandtl]], were further studied by two of his former students, [[Walter Tollmien]] and [[Hermann Schlichting]] after ...

This article summarizes [[equation]]s in the theory of [[wave]]s. ...ity and acceleration refer to the kinematics in the oscillating directions of the wave - transverse or longitudinal (mathematical description is identica ...

...se of the size of a linguistic construct results in a decrease of the size of its constituents, and vice versa.<ref name=":0">{{cite book | author = Gabr ...mber of clauses), the shorter the clauses (measured in terms of the number of words), or: the longer a word (in syllables or morphs), the shorter the syl ...

...umerical measure that is calculated by a [[fitness function]]. Each member of the population, a fly or an agent, holds a candidate solution whose suitabi ...mpetitive performance. Since its inception, DFO has been used in a variety of applications including medical imaging and image analysis as well as data m ...

...:Thoth08BigasDrumEvansChalmette.jpg|thumb|upright=1.35|A [[drum]] produces sound via a vibrating [[membrane]].]] In [[physics]], '''sound''' is a [[vibration]] that propagates as an [[acoustic wave]] through a [[t ...

...instrumentation for measuring the [[eye]]'s axial length (AL) and the use of more precise mathematical formulas to perform the appropriate calculations In order to determine the power of intraocular lens, several values need to be known: ...

{{Short description|SI derived unit of power}} {{About|the unit of power}} ...

{{Short description|Changing the balance of frequency components in an audio signal}} {{About|frequency-dependent processing of audio signals||Equalization (disambiguation)}} ...

...rtant parameter for the time it takes to print, and can affect the quality of the print. ...er|mm]]) or [[volume]] ([[Cubic centimetre|cm³]]), and the unit of time is usually measured in [[second]]s (or sometimes [[hour]]s). For examp ...

...> kg/m^3 </math>'' or ''<math> lb/ft^3 </math>''. The most basic principle of how density is calculated is by the formula: : <math> \rho </math> = the density of the sample. ...

...linear time-invariant]] (LTI) systems because it can be expressed in terms of the [[s-plane]]. ...matrix being in units of [[electrical impedance|impedance]]. The concept of impedance (and hence impedance matrices) has been borrowed into other energ ...

...ectromechanics|electromechanical systems]]: Converting the mechanical part of such a system into the electrical domain allows the entire system to be ana ...e mechanical domain with an analogous [[constitutive equation]]. All laws of [[circuit analysis]], such as [[Kirchhoff's circuit laws|Kirchhoff's laws]] ...

{{redirects|ELCC|a Canadian church|Evangelical Lutheran Church of Canada}} ...|2008|p=3}}) wind power capacity credit of 5%, 20 [[gigawatt]]s (GW) worth of wind power needs to be added to the system in order to permanently retire a ...

...d in a number of different fields, most often being encountered in respect of: ...minal value]] of the [[characteristic impedance]] of a cable or other form of [[transmission line]]. ...

{{about|a machine learning method|active learning in the context of education|active learning}} '''Active learning''' is a special case of [[machine learning]] in which a learning algorithm can interactively query ...

...he [[circuit diagram]]) using the [[lumped element model]] and the ability of network analysis to [[Network synthesis filters|synthesise a network]] to m This approach is especially useful in the design of [[mechanical filter]]s—these use mechanical devices to implement an electri ...