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Regression analysis of mean quality-adjusted survival time based on pseudo-observations
(JOHN WILEY & SONS LTD, 2009)
Regression models for the mean quality-adjusted survival time are specified from hazard functions of transitions between two states and the mean quality-adjusted survival time may be a complex function of covariates. We ...
Electrical modelling and power quality analysis of three-phase induction furnace
(2014-01-01)
The induction furnaces are loads having high power and nonlinear characteristic. The power consumption depends on the stage of melting metal in its interior and can cause serious problems on the electric power distribution ...
Assessing the quality of MOOC using ISO/IEC 25010
(INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS INC., 2016-10-03)
MOOC or Massive Open Online Course are a virtual training form present in the current educational landscape. Several authors raise doubts about whether these software products offer quality training, being necessary to ...
Electrical Modelling and Power Quality Analysis of Three-Phase X-Ray Apparatus
(Ieee, 2014-01-01)
This article proposes the use of PSCAD/EMTDC to model and simulate a three-phase x-ray machine. The model is an alternative tool to power quality studies, load connection impact analysis and power factor correction in the ...
A family of experiments to validate measures for UML activity diagrams of ETL processes in data warehouses
(11/01/2010)
In data warehousing, Extract, Transform, and Load (ETL) processes are in charge of extracting the data from the data sources that will be contained in the data warehouse. Their design and maintenance is thus a cornerstone ...
A quality in use model for ambient assisted living (AAL) systems
(Springer Science and Business Media Deutschland GmbH, 2021)
Ambient Assisted Living (AAL) aims to improve the people’s quality of life, especially vulnerable groups, with the support of information technologies, increasing the autonomy, self-confidence and mobility of the users in ...
Artificial neural network model of discharge lamps in the power quality context
(2013-06-01)
This paper presents a methodology for modeling high intensity discharge lamps based on artificial neural networks. The methodology provides a model which is able to represent the device operating in the frequency of ...
A data quality model for AAL systems
(Springer Nature Switzerland AG 2020, 2020)
Ambient Assisted Living (AAL) aims to improve the quality of life of people, supporting them in their daily activities by the use of information technologies. The AAL systems are preferably focused on vulnerable groups ...
Data quality maintenance in Data Integration Systems
(Udelar. FI, 2008)
A Data Integration System (DIS) is an information system that integrates data from a set of heterogeneous and autonomous information sources and provides it to users. Quality in these systems consists of various factors ...