Search Results - "Moura, E. P."

Evaluation of principal component analysis and neural network performance for bearing fault diagnosis from vibration signal processed by RS and DF analyses by de Moura, E.P., Souto, C.R., Silva, A.A., Irmão, M.A.S.

“…In this work, signal processing and pattern recognition techniques are combined to diagnose the severity of bearing faults. The signals were pre-processed by…”
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Applications of detrended-fluctuation analysis to gearbox fault diagnosis by de Moura, E.P., Vieira, A.P., Irmão, M.A.S., Silva, A.A.

“…Aiming at fault diagnosis, we study vibration signals obtained from gearboxes under various conditions. We consider normal gearboxes, gearboxes containing…”
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Modeling of deleterious phase precipitation during isothermal treatments in superduplex stainless steel by Pardal, J. M., Tavares, S. S. M., Cindra Fonseca, M. P., de Souza, J. A., Loureiro, A., Moura, E. P.

“…The deleterious constituents σ, χ, and eutectoid γ 2 can precipitate during hot forming and welding operations in superduplex stainless steels. In this study…”
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Fluctuation Analyses for Pattern Classification in Nondestructive Materials Inspection by Vieira, A P, de Moura, E P, Gonçalves, L L

“…We review recent work on the application of fluctuation analyses of time series for pattern classification in nondestructive materials inspection. These…”
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Pulmonary Tuberculosis: Evaluation of Interferon-γ Levels as an Immunological Healing Marker Based on the Response to the Bacillus Calmette-guerin by Moura, E P, Toledo, V P C P, Oliveira, M H P, Spíndola-de-Miranda, S, Andrade, H M, Guimarães, T M P D

“…Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis whose interaction with the host may lead to a cell-mediated protective immune response. The…”
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Pattern Recognition of Weld Defects in Preprocessed TOFD Signals Using Linear Classifiers by Moura, Elineudo P, Silva, Romeu R, Siqueira, Marcio H S, Rebello, Joao Marcos A

“…The TOFD ("Time of Flight Diffraction") technique is being widely used for automatic weld inspection, especially in the petrochemical industry, where welding…”
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Expression of IFN-γ, TNF-α, IL-10 and TGF-β in lymph nodes associates with parasite load and clinical form of disease in dogs naturally infected with Leishmania ( Leishmania) chagasi by Alves, Cíntia F., de Amorim, Izabela F.G., Moura, Eliane P., Ribeiro, Raul R., Alves, Cibele F., Michalick, Marilene S., Kalapothakis, Evanguedes, Bruna-Romero, Oscar, Tafuri, Wagner L., Teixeira, Mauro M., Melo, Maria N.

“…American visceral leishmaniasis is a zoonosis of the New World. Dogs are the main reservoir of the disease and there is much interest in the understanding of…”
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Characterization of welding defects by fractal analysis of ultrasonic signals by Vieira, A.P., de Moura, E.P., Gonçalves, L.L., Rebello, J.M.A.

“…In this work we apply tools developed for the study of fractal properties of time series to the problem of classifying defects in welding joints probed by…”
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Characterization of Cast Iron Microstructure Through Fluctuation and Fractal Analyses of Ultrasonic Backscattered Signals Combined with Classification Techniques by de Moura, E. P., Normando, P. G., Gonçalves, L. L., Kruger, S. E.

“…This work aims at evaluating the performance of pattern recognition methods in the identification of different microstructures presented by cast iron, namely,…”
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Are TQM principles supporting innovation in the Portuguese footwear industry? by Abrunhosa, Ana, Moura E Sá, Patrícia

“…The relationship between total quality management (TQM) and innovation is complex. Literature suggests that conflicting arguments exist and that the impact of…”
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Assessing customer satisfaction and loyalty in the retail sector by Biscaia, Ana Rita, Rosa, Maria J, Moura e Sá, Patrícia, Sarrico, Cláudia S

“…Purpose The effects of customer satisfaction on loyalty have been widely discussed by the academic community. Although the results of the studies reported in…”
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Fluctuation Analyses for Pattern Classification in Nondestructive Materials Inspection by Vieira, A P, de Moura, E P, Gonçalves, L L

“…We review recent work on the application of fluctuation analyses of time series for pattern classification in nondestructive materials inspection. These…”
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On the uncertainty quantification of blood flow viscosity models by Pereira, J.M.C., Serra e Moura, J.P., Ervilha, A.R., Pereira, J.C.F.

“…The blood viscosity uncertainty is investigated in an idealized portal-vein flow and its effect is propagated in the 3D Navier–Stokes equations and quantified…”
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Diffusion in randomly perturbed dissipative dynamics by Rodrigues, Christian S., Chechkin, Aleksei V., de Moura, Alessandro P. S., Grebogi, Celso, Klages, Rainer

“…Dynamical systems having many coexisting attractors present interesting properties from both fundamental theoretical and modelling points of view. When such…”
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Improving communication skill training in patient centered medical practice for enhancing rational use of laboratory tests: The core of bioinformation for leveraging stakeholder engagement in regulatory science by Moura, Josemar de Almeida, Costa, Bruna Carvalho, de Faria, Rosa Malena Delbone, Soares, Taciana Figueiredo, Moura, Eliane Perlatto, Chiappelli, Francesco

“…Requests for laboratory tests are among the most relevant additional tools used by physicians as part of patient's health problemsolving. However, the…”
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Strange eigenmodes and chaotic advection in open fluid flows by de Moura, Alessandro P. S.

“…We study the dynamics of mixing of advected fields in open chaotic flows. We propose the eigenfunctions of the stroboscopic advection-diffusion (SAD) operator…”
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Newton–Raphson power flow with constant matrices: A comparison with decoupled power flow methods by de Moura, Ailson P., de Moura, Adriano Aron F.

“…► We developed two new methods and they are based on the Newton–Raphson power flow method. ► The results are compared with XB, BX and Primal methods. ► Systems…”
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Formation of β-nickel hydroxide plate-like structures under mild conditions and their optical properties by de Moura, A.P., Lima, R.C., Paris, E.C., Li, M.S., Varela, J.A., Longo, E.

“…Nanostructural β-nickel hydroxide (β-Ni(OH) 2) plates were prepared using the microwave–hydrothermal (MH) method at a low temperature and short reaction times…”
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Improving disturbance rejection of PID controllers by means of the magnitude optimum method by Vrančić, Damir, Strmčnik, Stanko, Kocijan, Juš, de Moura Oliveira, P.B.

“…The magnitude optimum (MO) method provides a relatively fast and non-oscillatory closed-loop tracking response for a large class of process models frequently…”
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Study of the annealing temperature effect on the structural and luminescent properties of SrW04:Eu phosphors prepared by a non-hydrolytic sol―gel process by PEREIRA, P. F. S, DE MOURA, A. P, NOGUEIRA, I. C, LIMA, M. V. S, LONGO, E, DE SOUSA FILHO, P. C, SERRA, O. A, NASSAR, E. J, ROSA, I. L. V

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