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Estudios de cohortes especiales
(2020)
As we mentioned in a previous article (Cohort studies. 1st part. Description, methodology and applications), cohort studies are characterized by being observational, longitudinal and analytical studies; and in all of them ...
Practical active control of cavity noise using loop shaping: Two case studies
(2017-06-01)
A simple loop shaping technique is applied to design an optimal, robust feedback controller to reduce the interior noise of an acoustic cavity. It is a data-based technique that uses the measured plant response to tune the ...
A history of Chagas disease transmission, control, and re-emergence in peri-rural La Joya, Peru
(Public Library of Science, 2011)
Background:The history of Chagas disease control in Peru and many other nations is marked by scattered and poorly documented vector control campaigns. The complexities of human migration and sporadic control campaigns ...
Study of the control structure of a small wind turbine with permanent magnet synchronous generator
(2012-12-12)
This paper presents the analysis of the two control structures used in wind generation systems with permanent magnet synchronous generators, variable speed and fixed pitch, to determine which structure is most appropriate ...
Improvements on Multiloop Control Design via Net Load Evaluation
(Pergamon-elsevier Science Ltd, 2013-02)
The plant-wide control problem is a very important topic in process control. A particular control structure design will define (restrict) the future operability degree for the plant under study. Classical control policies ...
Análise de estratégias do erro de controle de área utilizando o software Anatem
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2018-07-11)
A power system uses control mechanisms to supply the continuous variations in demand, without difference between generation and demand and to deliver energy with minimum requirements of frequency, voltage and reliability. ...
A process-specific approach in the study of normal aging deficits in cognitive control: What deteriorates with age?
Bearing in mind that cognitive control is a complex function that includes several processes, it is not clear exactly which ones deteriorate with age. In fact, controversial results have been found. For example, some studies ...
Método de controle Sensorless para motores síncronos de imãs permanentes
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2019-11-29)
This paper presents the study and development of a sensorless control method for the Permanent Magnet Synchronous Motor (PMSM) based on the estimation of back Electromotive Force (back-EMF). A vector control method is ...
Análise de desempenho de trajetória de AGV seguidor de linha usando controle Fuzzy adaptativo
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência da Computação - PPGCCCâmpus São Carlos, 2017-08-17)
Dynamics of automatic vehicle movement (Automatic Guided Vehicle), its associated with your
control system, and the adoption of traditional control techniques, whose parameter and tuning are
performed based on linear ...