Kaper. The asymptotic critical wave speed in a family of scalar reaction–diffusion equations. J. Math. Anal. Appl. , 326(2):1007–1023, 2007.Dumortier F, Popovic´ N, Kaper TJ. 2007 The asymptotic critical wave speed in a family of scalar reaction-diffusion equations. J. Math. Anal...
The formula to calculate the sound pressure level (SPL) is:where:SPL is the sound pressure level in decibels (dB) P is the actual sound pressure in pascals Pref is the reference sound pressure (20 micropascals)How to SolveTo solve for SPL:...
We discuss models for coupled wave equations describing interacting fields, focusing on the speed of travelling wave solutions. In particular, we propose a general mechanism for selecting and tuning the speed of the corresponding (multi-component) travel
Cadoni, G. Gaeta / Speed selection for coupled wave equations It is appropriate to mention immediately some physical relevant cases in which one meets Lagrangians of the type (1.2). These include e.g., beside the "composite" model of DNA dynam- ics [5] mentioned above and the strictly ...
Speed of Sound - Equations Calculate the speed of sound (the sonic velocity) in gases, fluids or solids. A disturbance introduced in some point of a substance - solid or fluid - will propagate through the substance as a wave with a finite velocity. Acoustic Velocity and Speed of Sound ...
In this way, we can use simple matrix operations to calculate transmission parameters with different strip states. Compared with simulation-only methods, the optimization speed is greatly accelerated. As mentioned above, in order to perform an nth-order differential kernel, the pixel metamaterials need...
History:The initial concept was discovered by the Scottish Laird John Napier of Merchiston in an effort to make the multiplication of large numbers, then incredibly tedious and time consuming, easier and faster. It was later refined by Henry Briggs to make reference tables easier to calculate and...
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Calculate the magnetic flux density in material (2). Figure 11.9 11.29 Simulated Surface Current Density. It is possible to simulate a current sheet at an interface by placing thin parallel wires at the interface. Suppose two materials meet at an interface on thex–yplane atz = 0. Both...
Furthermore, using the numerical method, we calculate the integral power at other values of the soliton parameter μ and identify the existence ranges of the numerically found solitons, as shown in Fig. 12(a), where the lower cutoffs are μ1≈3.4, μ2≈6.3, μ3≈11.1, and there are no...