13 articles for “Fine-Grained”

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Research ArticleOpen accessIn the abstractGeo-Seismic Environmental Aspects Affecting Tailings Dams FailuresJuan M. Mayoral, Miguel P. RomoSeismic performance evaluations of tailings dams are essential for characterizing the geo-environmental risks posed by these earthen structures, which should include the geotechnical hazards implied by slope instability failure, free board loss and the potential release of contaminants. The observed damage is more important when liquefaction occurs on the dam body and foundation, which often leads to cracking, settlements, tilting … …American Journal of Environmental Sciences, Vol. 4, Issue 3 · 30 Jun 2008 · 7,086 accessesView PDF Cite

Research ArticleOpen accessIn the abstractHigh Saturation Induction for Bi-Substituted Yttrium Iron Garnet Prepared Via Sol Gel TechniqueNoorhana Yahya, Goh Kah HeanY3.0-xBixFe5O12 samples (x = 0.2 and 0.4) were prepared via novel sol-gel and conventional solid-state techniques. The effect of bismuth in both techniques was investigated in terms of shrinkage, density, hysteresis and initial permeability. Sharp and clear diffraction XRD lines with highest peak appear at about 32° of the 2θ¸, for all the powders sintered at 900°C and 1250°C for … …American Journal of Applied Sciences, Vol. 4, Issue 2 · 28 Feb 2007 · 7,594 accessesView PDF Cite

Research ArticleOpen accessIn the abstractTowards Autonomously Developed Software: A genetic Approach in Critical and Embedded SystemsDjamel Meslati, Saïd GhoulNowadays, we are still considering changes undergone by a software system as a sporadic phenomenon and we do not sufficiently anticipate future changes during the development phase. Consequently, many problems arise in the maintenance phase. In this study, we present an approach where all changes undergone by a software system are considered as its ontogenetic dimension. We represent this dimension … …Journal of Computer Science, Vol. 1, Issue 4 · 31 Dec 2005 · 6,191 accessesView PDF Cite