A mathematical model of induction motor (IM) based on the second Kirchhoff’s law with Maxwell’s equation taken into account has been developed. a three-phase short-circuited rotor in phase axes without taking saturation magnetic circuit and losses steel elaborated. nonlinear asynchronous state space rotating system (d-q) coordinates synchronized stator flux simulation IM MatLab/Simulink softwar...

A detailed investigation of the reaction path for the thermal w x rearrangement of 3,4-dihydro-1a H-azirine 2,3-c pyrrol-2-one to yield a cyanoketene]formaldimine complex is carried out at the MP2r6-31G* and B3LYPr6-31G* levels of theory. The ring opening of the five-membered pyrrolinone ring and the formation of the nitrile group takes place in a concerted manner, presenting a significant stra...

Wound-Rotor (WR) resolvers are the most widely used position sensors in applications with harsh environmental conditions. However, their performance is exposed to failure due to the high risk of short circuit (SC) fault. Although the output current of the resolver is negligible, its thin copper wires increase the probability of the short circuit fault. To avoid the propagation of the turn-to-tu...

We consider rational functions of the form V(x)/U(x), where both V(x) and U(x) are relatively prime polynomials over finite field \(\mathbb {F}_q\). Polynomials that permute elements a field, called permutation (PPs), have been subject research for decades. Let \({\mathcal {P}}^1(\mathbb {F}_q)\) denote {F}_q\cup \{\infty \}\). If function, permutes {F}_q)\), it is function (PRF). \(N_d(q)\) nu...

This is a review paper on the generalization of Euclidean as well pseudo-Euclidean groups interest in quantum mechanics. The Weyl–Heisenberg groups, Hn, together with Euclidean, En, and Ep,q, are two families particular due to their applications physics. In present manuscript, we show that, together, they give rise more general family Kp,q, that contain Hp,q Ep,q subgroups. It noteworthy proper...

Ž . ABSTRACT: Density Functional Theory DFT calculations at the B3LYPr631G level have been performed on four bowl-shaped polyaromatic Ž . Ž . Ž . hydrocarbons of C H molecular formula 1]4 showing C 1 , C 2 and 4 , 30 12 3 2 v Ž . and C 3 symmetries. The geometrical and electronic properties of the 2 h compounds studied have been analyzed to explain their relative stability. NMR chemical shifts ...