O planejamento de mina é desenvolvido considerando variáveis econômicas, teores, litologia, posição espacial. Estas são utilizadas para determinar o limite final cava e sequenciamento das operações. Normalmente amostradas exaustivamente somente as relacionadas ao teor. As demais configuradas com valores médios. técnicas estatística multivariada permitem maior impacto. Utilizando um modelo geoló...


 A pesar de que Max Horkheimer en Eclipse la razón había analizado los límites subjetiva, atendien- do a las posibilidades retornar objetiva y su función después del eclipse, Jay le parecían aún insuficientes estas respuestas. Por ello, regresó al estudio conceptualizaciones filosóficas fundadores teoría crítica quienes se quedaron cargo Instituto Investigación Social Frankfurt. En este s...

The substitution method has proven to be an effective tool for bounding the critical probability of a variety of percolation models. Nevertheless, until recently substitution method calculations have been done by hand. This has severely restricted the size of computationally feasible substitution regions. We examine the computational problems posed by the substitution method, beginning with an ...

Despite the economic benefits of flowsheet optimization, many commercial tools suffer from long computational times, limited problem formulation flexibility and numerical instabilities. In this study, we address these challenges and present a framework for efficient large scale flowsheet optimization. This framework couples advanced process optimization formulations with state-of-the-art algori...

1. Background If ever there was a collection of articles that needed no introduction, this is it. Undaunted, I shall fulfill my charge as introducer by describing some of the intellectual background of wavelet theory and relating this background to the articles in this volume and to their expert introductions by Jelena Kovačević, Jean-Pierre Antoine, Hans Feichtinger, Yves Meyer, Guido Weiss, a...

With the advent of deregulation in electricity markets and an increasing share of intermittent power generation sources, time-sensitive electricity prices (as part of so-called demand-side management in the smart grid) offer potential economical incentives for large industrial customers. These incentives have to be analyzed from two perspectives. First, on an operational level, aligning the pro...