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Estimating hardness of eucalyptus wood with a portable hardness tester
(2012-12-01)
More than 80% of the 29600 km of the Brazilian railroad mesh employs wooden sleepers. The problem of hard availability of native wood for this purpose leads to the alternative use of reforestation species to produce sleepers. ...
Density-based clustering validation
(Society for Industrial and Applied Mathematics - SIAMPhiladelphia, 2014-04)
One of the most challenging aspects of clustering is validation, which is the objective and quantitative assessment of clustering results. A number of different relative validity criteria have been proposed for the validation ...
Multivariate optimization and validation of an analytical methodology by RP-HPLC for the determination of losartan potassium in capsules
(Elsevier B.V., 2009-11-15)
This paper describes the optimization and validation of an analytical methodology for the determination of losartan potassium in capsules by HPLC using 2(5-1) fractional factorial and Doehlert designs. This multivariate ...
On the internal evaluation of unsupervised outlier detection
(University of CaliforniaAssociation for Computing Machinery – ACMLa Jolla, 2015-06)
Although there is a large and growing literature that tackles the unsupervised outlier detection problem, the unsupervised evaluation of outlier detection results is still virtually untouched in the literature. The so-called ...
Reversed phase HPLC determination of zidovudine in rat plasma and its pharmacokinetics after a single intranasal dose administration
(Soc Biolgia Chile, 2009-01-01)
The development and validation of a simple and accurate method based on HPLC with ultraviolet detection for the quantification of zidovudine in rat plasma and its application to a pharmacokinetic study following a single ...
Automatic landslide recognition through Optimum-Path Forest
(2012-12-01)
In this paper we shed light over the problem of landslide automatic recognition using supervised classification, and we also introduced the OPF classifier in this context. We employed two images acquired from Geoeye-MS ...
A barrier method for constrained nonlinear optimization using a modified Hopfield network
(2001-01-01)
The ability of neural networks to realize some complex nonlinear function makes them attractive for system identification. This paper describes a novel barrier method using artificial neural networks to solve robust parameter ...
Implementation and validation of a multiphase multigrain model equiaxed solidification
(TMSSan Diego, 2014)
A multiphase and multigrain mathematical model for the solidification of binary alloys is proposed, implemented, and validated. The model equations are derived using the volume averaging method and considering the conservation ...