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"A wide availability of in field Oil & Gas facilities which still have a marginal productive life can be a good opportunity to produce geothermal energy. The challenge is to make good decisions about the company’s asse...

"In present work, a finite element model is developed for the hydraulic fracturing process applicable to a stage of a horizontal well in a shale formation, using the joint representation of the clusters that compose it. ...

"Vaca Muerta Formation in Neuquén Basin, Argentina, is one of the great worldwide promises given its potential as a non-conventional reservoir. Because of the intrinsic heterogeneity and low permeability, hydraulic frac...

The objective of this paper is to present a model to estimate actual evapotranspiration ETA from reference evapotranspiration ET0 by numerical modelling of water flow in the unsaturated zone of the soil. Water flow is de...

Previous article Next article An Algorithm for Least-Squares Estimation of Nonlinear ParametersDonald W. MarquardtDonald W. Marquardthttps://doi.org/10.1137/0111030PDFPDF PLUSBibTexSections ToolsAdd to favoritesExport Ci...

The relationship between co-integration and error correction models, first suggested in Granger (1981), is here extended and used to develop estimation procedures, tests, and empirical examples. If each element of a vect...

Subjects / keywords: Spine; Biomechanics; Finite element method; Computer simulation; Electronic books

A new algorithm called Mersenne Twister (MT) is proposed for generating uniform pseudorandom numbers. For a particular choice of parameters, the algorithm provides a super astronomical period of 2 19937 −1 and 623-dime...