sinusoidal
121Stirling cycle — This article is about the real Stirling cycle. For the idealized Stirling cycle , see the Stirling engine article. IntroductionThe Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices. This includes the… …
122Electromagnetic wave equation — The electromagnetic wave equation is a second order partial differential equation that describes the propagation of electromagnetic waves through a medium or in a vacuum. The homogeneous form of the equation, written in terms of either the… …
123Describing function — The Describing function (DF) method of Nikolay Mitrofanovich Krylov and Nikolay Bogolyubov is an approximate procedure for analyzing certain nonlinear control problems. It is based on quasi linearization, which is the approximation of the non… …
124Electric Motor Education and Research Foundation — The Electric Motor Education and Research Foundation, or EMERF, is a non profit foundation affiliated with SMMA – the Motor and Motion Association, a United States based electric motor trade association. EMERF was chartered in 1995 to advance and …
125Lamb waves — propagate in solid plates. They are elastic waves whose particle motion lies in the plane defined by the plate normal and the direction of wave propagation. In 1917, the English mathematician Horace Lamb published his classic analysis and… …
126Euler–Worpitzky–Chen polynomials — Introduction = The Euler Worpitzky Chen polynomials are closely related to the family of Euler Bernoulli polynomials and numbers. The coefficients of the polynomialsare integers, in contrast to the coefficients of the Euler and Bernoulli… …
127Amplificateur électronique — Pour les articles homonymes, voir Amplificateur. Un amplificateur Hi Fi à tubes. Un amplificateur électronique (ou amplificateur, ou ampli) est un système électronique …
128CosPhi — Puissance en régime alternatif Diagramme complexe de la puissance en régime alternatif : Puiss. réelle (P, en Watt (W)) Puiss. réactive (Q, en voltampère réactif (VAr)) Puiss. complexe (S, en voltampère (VA)) Puiss. apparente (abs(S), en… …
