[PDF] Top 20 Rev. Esc. Minas vol.66 número1 en a01v66n1

... Upon establishing the School of Mines in Ouro Preto, Henrique Gorceix stated: the creation of a periodical magazine that divulges the state-of-art of the mining industry in Brazil is a natural and necessary extension of ... See full document

... by Nazer et al. (2012), when working with regular pozzolana cement, at the same ages (3, 7 and 28 days), but with raw grading copper slag samples, i.e. not adjusted to grading distributions stated in the NCh 163.Of1979 ... See full document

... In general, the low added value of a given mineral deposit and the low geological complexity tend to result in the planning step being overlooked and the mining beginning without the nec- essary detailing, or only ... See full document

... This en- trapping effect can be better understood by considering that when the magnetic force pulls the magnetic particles to make them move in the direction of higher magnetic gradients, some of the non- magnetic ... See full document

... carta, en- viada em 9 de agosto de 1988, para Antoine Gor- ceix, seu neto, Jean Biron, prefeito de Bujaleuf, pedia para coniar à comuna de Bujaleuf as cartas, escritos ou outros itens relaciona- dos com a vida de ... See full document

... Accordingly, there has been a call for research on the particularities of small enterprises and their environmental management approaches. This article responds to this call, while analyzing the environmental challenges ... See full document

... The main objective of this study is to present a comparison between the pro- grams and algorithms of pits optimiza- tion and sequencing implemented within different mining programs.. I[r] ... See full document

... A mold assembly for a ductile iron piece (Figure 1) has been chosen for the experiments. Four different sleeves have been used in this study, i.e.: S1) a high-luorine exother- mic sl[r] ... See full document

... Keywords : Flotation, metallurgical slag lotation, sodium lauryl sulfate, secondary lead, recycling of industrial waste.. Lead recovery by lotation with sodium lauryl sulfate.[r] ... See full document

... A thermodynamic analysis of the organic matter (chemical oxygen demand - COD) removal from synthetic oil-water emulsions by the electrocoagulation process was performed with the ob[r] ... See full document

... Conforme explicado anterior- mente, a transação libera conside- rável valor contido em nossos ativos de metais básicos de classe mun- dial, na medida em que atribui ao ouro pagável produzido como sub- produto do Salobo o ... See full document

... Then, both the thickness of the sheets and of the core of the sandwich plate are taken as design variables leading to the results of Table 6... Sandwich plate with rando[r] ... See full document

... The main assumptions of the pro- posed model are: (a) AAR-evolution is coupled to coninement stresses; (b) the concrete damage and the anisotropic behaviour are represen[r] ... See full document

... Upon establishing the School of Mines in Ouro Preto, Henrique Gorceix stated: the creation of a periodical magazine that divulges the state-of-art of the mining industry in Brazil is a natural and necessary extension of ... See full document

... AVI results are contradictory relative to GOD results, because AVI method describes Sordo river basin as a medium where aquifer vulnerability is extremely high while GOD meth[r] ... See full document

... A separação magnética industrial tem ganhado força com o advento de equipamento contínuo com alto gradiente de campo. A recuperação magnética de hematita contida em lamas espessadas é aqui discutida, a partir de ensaios ... See full document

... opacus- cassiterite under acidic conditions changed the surface proprieties and charge to a degree dependent on the initial bacterial concentration: at 600 mg cells/L, the ave[r] ... See full document

... Aparas e pó de perfuração são, geralmente, utilizados em pedreiras e minas a céu aberto, como o material de tamponamento mais comum, uma vez que são mais facilmente disponíveis nas frentes de desmonte. O ... See full document

... A Escola de Minas comemora, em outubro, seu 137º aniversário. Fiz, em junho, uma viagem ao exterior, na qual incluí a região de Limoges - França, com a inalidade de conhecer a terra na qual nascera Claude-Henri ... See full document

... Developed in Fortran 95/2003 lan- guage (Metcalf et al., 2004) and based on the Finite Element Method (FEM), CS-ASA performs the nonlinear static and dynamic analyses of [r] ... See full document