Unexpected Properties of the Propagations Generated by Some Time Harmonic Perturbations in a 2D Infinitely Long Straight Duct Satisfying Different Types of Boundary Conditions

In this paper the propagation, generated by some explicit permanent time harmonic perturbations are presented, in a 2D straight duct, carrying a constant gas flow. The amplitude of the perturbations is not that given by...

Study on modernization processes in the coating metal surfaces (plain bearings) by thermal spraying

Knowledge accumulated within the metal coating through thermal spraying allows the understanding of aspects related to the coat structure phenomena, in this case of the routs that need to be followed in order to create s...

Control of uncertain systems by feedback linearization with neural networks augmentation. Part I. Controller design

The paper highlights the main steps of adaptive output feedback control for non-affine uncertain systems – both in parameters and dynamics – having a known relative degree. Given a reference model, the objective is to de...

Cessna Citation X Business Aircraft Eigenvalue Stability – Part2: Flight Envelope Analysis

Civil aircraft flight control clearance is a time consuming, thus an expensive process in the aerospace industry. This process has to be investigated and proved to be safe for thousands of combinations in terms of speeds...

ELIE CARAFOLI AT THE ROMANIAN ACADEMY