This study investigates the problem of asymptotic stabilization of underactuated surface vehicles (USVs) in the presence of simultaneous matched and mismatched disturbances.Within the framework of back-stepping control and by introducing a periodic term in the control laws of virtual yaw angle and surge Buoyancy Aids velocity, a control design meth
In the context of digital subscriber line (DSL) systems, where the long-reach (LR) extension of G.fast has recently been proposed, interest in techniques dealing with long channel impulse responses (CIRs) without increasing the cyclic prefix (CP) length of the discrete multi-tone (copyright) modulation has recently resurfaced.The technique under co
Polymer-based waveguide amplifiers are essential components in integrated optical systems, as their gain bandwidths directly determine the operating wavelength of optical circuits.However, development of the wideband gain media has been challenging, making it difficult to fabricate devices with broadband amplification capability.Rare earth ion-dope
This Garden Flag article reviews briefly the background of actions to certify labor capacities, carried out by vocational training institutions in the Latin American and Caribbean region.It mentions the current concept of certification and the different meanings usually ascribed to this term, associated with economic growth, competitiveness, and pr