Análise do custo de garantia para equipamentos com dois modos de falha dependentes
A common procedure in Reliability Engineering is to calculate the serial system survival probability. This formulation is used to calculate the reliability of an equipment with multiple independent failure modes. However, the hypothesis of independence between system components when there are correlated failure modes are lost.
Fernanda Márcia da Silveira Esteves +2 more
openaire +2 more sources
Automatic ABR in newborns risk: study of sensitivity and specificity [PDF]
PURPOSE: to study the sensitivity and specificity of automatic ABR in comparison to diagnostic ABR of newborns under risk in a neonatal hearing screening program.
Angrisani, Rosanna Mariangela Giaffredo +6 more
core +1 more source
Adherence to a Neonatal Hearing Screening Program [PDF]
Neonatal hearing screening programs have been developed worldwide. Since 2002, the newborns from the Center for Integral Assistance to Women's Health at UNICAMP have been referred to hearing screening at the Center for Studies and Research on ...
Colella-Santos, Maria Francisca +4 more
core +5 more sources
Modelo de regressão Weibull para estudar dados de falha de equipamentos de sub-superfície em poços petrolíferos [PDF]
Este trabalho apresenta um estudo de confiabilidade em dados relativos ao tempo de vida de poços petrolíferos terrestres da Petrobras, produtores de óleo na Bacia Potiguar (RN/CE). O objetivo do estudo foi, com base em um conjunto de dados sobre ocorrências de falhas, verificar a existência do relacionamento entre o tempo de vida dos poços e algumas de
Dantas, Maria Aldilene +5 more
openaire +5 more sources
Objetivo: Revisar a literatura científica atual acerca de acidentes ocupacionais com material biológico,decorrentes da negligência no uso de equipamentos de proteção individual, associados a seus riscos eimplicações socioeconômicas. Métodos: Trata-se de uma revisão bibliográfica de caráter qualitativo,construída a partir de artigos científicos ...
Thaiz Helena Lopes da Rocha +9 more
openaire +2 more sources
Methodology for implementing a maintenance plan for a phacoemulsification machine [PDF]
PURPOSE: To implement a plan of preventive maintenance developed for users of the phacoemulsification machine. METHODS: In order to implement a maintenance program for a phacoemulsification machine, Alcon's Legacy 20000 was chosen.
Aragaki, Wagner Koji +2 more
core +4 more sources
Energia em qualquer situação. Grupos eletrogéneos [PDF]
O modelo de sociedade em que vivemos depende em grande medida de uma fonte de energia eléctrica ininterrupta, estável e capaz. Tanto no sector industrial, comercial como residencial, a contínua disponibilidade de energia tem um papel de extrema ...
Gonçalves, Nelson
core +2 more sources
Newborn Hearing Screening with otoacoustic emissions and cochlear-palpebral reflex: sensitivity and specificity study [PDF]
PURPOSE: to study the specificity and sensitivity of NHS with otoacoustic emissions transient stimulus (TEOAE) associated with cochlear-palpebral reflex (CPR), and comparing the results of Auditory Evoked Potential (BAEP). METHOD: three hundred and sixty-
Angrisani, Rosanna Mariangela Giaffredo +5 more
core +1 more source
Response level of the transient-evoked otoacoustic emissions on infants having a gastroesophageal reflux [PDF]
INTRODUCTION: The transient-evoked otoacoustic emissions (TEOAE) have been the most widespread technique to perform neonatal hearing screening. Scrutinizing their measures by way of an association with other alterations that may impair the infant's ...
Azevedo, Marisa Frasson de +5 more
core +3 more sources
Comparative analysis of otoacoustic emissions with tympanometry in 0-6 month infants [PDF]
PURPOSE: to compare the findings of TEOAE with tympanometry in 226 and 1000 Hz in infants. METHOD: the study was conducted in the Department of Otolaryngology, Hospital Santa Juliana Maceio - Alagoas.
Azevedo, Marisa Frasson de +5 more
core +1 more source

