This paper investigates a range of statistical, neural network and hybrid approaches for making one-step-ahead forecasts of a monthly water demand time-series on the basis of 108 historical data points. A uni-variate approach, using solely the water demand time-series, is taken to construct two stand-alone forecasting models: a backpropagation network and a statistical model. A bi-variate appro...

Necessary and sufficient conditions for the bi-variate characteristic polynomial of a matrix to be very strict Hurwitz (VSHP) are presented. These conditions are based on solving the Lyapunov equation for 2 0 continuous systems using the Kronecker product and lead to a simple test for the VSHP property. It requires testing only the eigenvalues of three stable matrices and this is simpler than t...

This contribution presents an isogeometric approach in three dimensions for nonlinear problems solid mechanics and structural dynamics. The proposed aligns with the boundary representation modeling technique CAD. Isogeometric analysis is combined parameterization of scaled finite element method. In this way, description 3D solids CAD can be directly utilized framework. approximation solution on...

Copulas are increasingly studied both in theory and practice as they are a convenient tool to construct multivariate distribution functions. However the material essentially covers the bi-variate case while in applications the number of variables is much higher. Furthermore, when one wants to take into account tail dependence, a desirable property is to have enough flexibility in the tails whil...

Agriculture is the foundation of many countries' economies, particularly in India and Tamil Nadu. The young generation who are new to farming may confront challenge not understanding what sow reap benefit from. This a problem that has be addressed, it one we addressing. Predicting proper crop production will aid making better decisions, reducing losses managing risk price fluctuations. existing...

The cross-laminated timber coupled wall (CLT-CW) system, a recently proposed timber-based structural has limited understanding of its seismic performance. existing research in probabilistic fragility assessment (PSFA) CLT buildings reveals gap, particularly regarding comprehensive evaluation CLT-CW systems and the impact various design parameters. To fully describe state post-earthquake perform...

A personal best marathon time has been reported as a strong predictor variable for an Ironman race time in recreational female Ironman triathletes. This raises the question whether recreational female Ironman triathletes are similar to recreational female marathoners. We investigated similarities and differences in anthropometry and training between 53 recreational female Ironman triathletes ...

The classical method of quantitative structure-activity relationships (QSAR) is enriched using non-linear models, as Thom's polynomials allow either uni- or bi-variate structural parameters. In this context, catastrophe QSAR algorithms are applied to the anti-HIV-1 activity of pyridinone derivatives. This requires calculation of the so-called relative statistical power and of its minimum princi...