Search Results - "Nobrega, Rafael A."

Detection and Classification System for Rail Surface Defects Based on Eddy Current by Alvarenga, Tiago A., Carvalho, Alexandre L., Honorio, Leonardo M., Cerqueira, Augusto S., Filho, Luciano M. A., Nobrega, Rafael A.

“…The prospect of growth of a railway system impacts both the network size and its occupation. Due to the overloaded infrastructure, it is necessary to increase…”
Get full text

Identification and Localization of Track Circuit False Occupancy Failures Based on Frequency Domain Reflectometry by Alvarenga, Tiago A, Cerqueira, Augusto S, Filho, Luciano M A, Nobrega, Rafael A, Honorio, Leonardo M, Veloso, Henrique

“…Railway track circuit failures can cause significant train delays and economic losses. A crucial point of the railway operation system is the corrective…”
Get full text

Measurement system for evaluation of the muon chambers for the LHCb experiment by Nóbrega, Rafael A., Pinci, Davide

“…In a detector with the complexity of the LHCb, where only for the muon system more than 1300 chambers, divided into 20 different types, will be used, resulting…”
Get full text

Identification of Low Impedance Points Along Railway Tracks From a Railroad Inspection Vehicle by Alvarenga, Tiago A., Nobrega, Rafael A., Cerqueira, Augusto S., de Andrade Filho, Luciano M., Honorio, Leonardo M., Rossignoli, Sergio, Veloso, Henrique, Batista, Rafael

“…This work addresses the subject of preventive maintenance of railroads which has a considerable impact on the cost and safety of railway companies by proposing…”
Get full text

The Muon Front-End Control Electronics of the LHCb Experiment by Bocci, Valerio, Chiodi, Giacomo, Iacoangeli, Francesco, Messi, Francesco, Nobrega, Rafael A

“…The LHCb muon readout apparatus is made of 1368 Multi-Wire Proportional Chambers (MWPC) and 24 Gas Electron Multiplier (GEM) chambers connected to 7632…”
Get full text

Identification and Classification of Corrupted Signals for the Neutrinos Angra Experiment by Migliorini, Mariana L., Cerqueira, Augusto S., Costa, Igor A., Fernandes, Antonio, Lopes, Guilherme S., Lopes, Amaro S., Nobrega, Rafael A., Pains, Igor F., Souza, David de M., Lima Junior, Herman P., Anjos, Joao C., Chimenti, Pietro, Gonzalez, Luis F. G., Kemp, Ernesto, Pepe, Iury M, Ribeiro, Dion B S, Guedes, Germano P.

“…The Neutrinos Angra Experiment aims at monitoring nuclear plants by detecting antineutrino particles coming out from its fuel burn-up process. The Neutrinos…”
Get full text

Amplitude Estimators Applied to Saturated Signals for the \nu-\mathrm Experiment by Fernandes, Antonio, Souza, David de M., Costa, Igor A., Lopes, Amaro S., Migliorini, Mariana L., Pains, Igor F., Lopes, Guilherme S., Nobrega, Rafael A., Anjos, Joao C., Lima Junior, Herman P., Pepe, Iury M, Ribeiro, Dion B S, Chimenti, Pietro, Guedes, Germano P., Gonzalez, Luis F. G., Kemp, Ernesto

“…The Neutrinos Angra Experiment aims at developing a system capable of monitoring the fuel-burning process of nuclear reactors. This system is based on an…”
Get full text

Performance study of digital filters applied to the Readout System of the Neutrinos-Angra Detector by Alvarenga, Tiago A., Dornelas, Tony I., Esterce, Dhiogo R., de C Vieira, Jose A., Nobrega, Rafael A.

“…This document presents a performance assessment of digital filters applied to the signal arriving to the acquisition system of the Neutrinos-Angra Detector…”
Get full text

A study of distance/similarity measurements in the context of signal processing (density estimation) by Souza, David M., Costa, Igor A., Nobrega, Rafael A.

“…Currently the number of applications where the data generation function is not known has been growing, making necessary the use of non-parametric estimation…”
Get full text

Study of the Discretization Process applied to Continuous Random Variables in the Density Estimation Context by Costa, Rafael M., Souza, David M., Costa, Igor A., Nobrega, Rafael A.

“…Lately, with the emergence of large data-generating experiments, there is a growing demand to optimize the algorithms responsible for interpreting this volume…”
Get full text

BLUE estimator applied to energy measurement for the ν-Angra experiment by Souza, David M., Costa, Igor A., Alvarenga, Tiago A., Losqui, Alberto, Nobrega, Rafael A.

“…This paper proposes a detailed evaluation of the impact of digital filters when applied to the Neutrinos Angra Experiment. The signals coming out from its…”
Get full text

Front-end control system and precise threshold configuration of the v-Angra experiment by Migliorini, Mariana L, FernandesJr, Antonio, Anjos, Joao C, Chimenti, Pietro, Costa, Igor A, Gonzalez, Luis F G, Guedes, Germano P, Kemp, Ernesto, LimaJr, Herman P, Lopes, Guilherme S P, LopesJr, Amaro S, Nobrega, Rafael A, Pains, Igor F, Pepe, Iuri M, Ribeiro, Dion B S, Souza, David M

“…The v-Angra experiment aims to estimate the flux of antineutrino particles coming out from the Angra II nuclear reactor. Such flux is proportional to the…”
Get full text