This work evaluates the effectiveness of a new hybrid algorithm in the training of modular neural networks with multilayers specialists. The algorithm is applied on the classification of electric disturbances previously characterized and pre-processed, making possible the comparison between its performance with multilayers perceptrons networks. It presents the algorithm’s development and inclus...

Aperiodic multilayers have been designed for various applications, using numeric algorithms and analytical solutions, for many years with varying levels of success. This work developed a more realistic model for simulating aperiodic Mo/Si multilayers to be used in these algorithms by including the formation of MoSi(2). Using a genetic computer code we were able to optimize a 45 masculine multil...

The stripe model of domain structure in multilayers is studied by micromagnetic simulation. The results indicate a strong reduction of the effective domain wall energy (by dipolar effects). Domain width measurements on sputtered C o /P d multilayers are compared with the theory. The estimated exchange stiffness is comparable with that of bulk Co. The effects of interface roughness and of interl...

A procedure is described to allow selective cancellation of polarized scattering within optical substrates and multilayers. It is shown how bulk scattering (respectively surface) can be directly eliminated while the remaining roughness (respectively bulk) signal is still measurable. The same procedure can be applied to isolate a single interface or bulk within a stack or to detect slight depart...

a novel, magnetic silica sorbent with polyelectrolyte multilayers (pems) on its surface was prepared, and was used for magnetic solid phase extraction (mspe) of trace a+ via flame atomic absorption spectrometry (faas). the experimental parameters for the mspe procedure, such as the ph, type, and concentration of eluent, ultrasonic time and effects of co-existing ions were investigated. the dete...

CoCu alloys have been extensively studied experimentally. Earlier investigations, particularly those of the magnetic properties, include high-temperature magnetic moment for 4085% Cu rich Co-Cu solid solutions [1] and variation of magnetic moments for Co rich alloys at room temperature [2,3]. Recently, the focus of attention has been on giant magneto-resistance (GMR) studies. Several experiment...

Proximity effects between superconducting and magnetic layers have been some of the most actively studied subjects in the past decades. It has been well established that magnetic moments and magnetic order are highly effective in destroying Cooper pairs and strongly depressing superconductivity. Thus in superconductor/ferromagnet (S/F) multilayers, one observes that the superconducting transiti...

A part of the Ph.D. project focused on growth and characterization of metal multilayers is presented in this licentiate thesis. The main interest in carrying out this research is to develop highly reflective normal-incidence condenser mirrors for soft X-ray microscopy studies in the water window (λ = 2.4− 4.2 nm) wavelength regime. Transition metals like Sc, Ti V, etc. have been considered beca...

The long-standing challenge for forming Al-based BMGs and their matrix composites with a critical size larger than 1 mm have not been answered over the past three decades. In this paper, we reported formation of a series of BMG matrix composites which contain a high Al content up to 55 at.%. These composites can be cast at extraordinarily low cooling rates, compatible with maximum rod diameters...