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Time-frequency analysis combining wavelets and the envelope technique for fault identification in rotary machines
(2013-03-18)
Nowadays the method based on demodulation by envelope finds wide application in industry as a technique for evaluation of bearings and other components in rotating machinery. In recent years the application of Wavelets for ...
Sustainable development in the BRICS countries: an efficiency analysis by data envelopment
(Taylor & Francis Inc, 2014-06-01)
There is much concern about the social and environmental impacts caused by the economic growth of nations. Thus, to evaluate the socio-economic performance of nations, economists have increasingly addressed matters related ...
Time-frequency analysis combining wavelets and the envelope technique for fault identification in rotary machines
(2013-03-18)
Nowadays the method based on demodulation by envelope finds wide application in industry as a technique for evaluation of bearings and other components in rotating machinery. In recent years the application of Wavelets for ...
Concentration methods for the quantification of coronavirus and other potentially pandemic enveloped virus from wastewater
Since the novel SARS-CoV-2 was detected in faeces, environmental researchers have been using centrifugal ultrafiltration, polyethylene glycol precipitation and aluminium hydroxide flocculation to describe its presence in ...
Efficiency in brazilian refineries under different DEA technologies
(SAGE journals, 2012-01-01)
Coherence-time characterization in a suburban environment
(John Wiley & Sons IncHobokenEUA, 2006)
Nakagami-m Phase-Envelope Joint Distribution: A New Model
(Ieee-inst Electrical Electronics Engineers IncPiscatawayEUA, 2010)
Sustainable development in the BRICS countries: an efficiency analysis by data envelopment
(Taylor & Francis Inc, 2014)