Browsing by Author "Munoz, F."

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    Problems in quality management and technical inspection of work: a study applied to the chilean context
    (2019) Santelices, C.; Herrera, R.; Munoz, F.
    The main problems in the industry of architecture, engineering, and construction (AEC) are the low indices of productivity and the high fragmentation and complexity, which directly affect the quality of the projects. To provide tools to mitigate and/or solve the current situation in the sector, a compilation of the problems in the area of quality management and technical inspection of work, which were validated through interviews according to the experience of professionals, is presented from the literature. Subsequently, an analysis of the relative importance index was applied, obtaining an ordered list of the problems according to their importance in the Chilean context. In this way, the project directors can consider them from the beginning of the projects, considering that quality is planned, managed, and controlled. This makes it possible to prioritize and make better decisions in the allocation of resources, which are generally scarce, in the various processes of the item, both in the office and in the field.
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    Surface states of FeF2 (110) and its uncompensated magnetization
    (2015) Munoz, F.; Romero, A. H.; Mejia-Lopez, J.; Roshchin, Igor V.; Gonzalez, R. I.; Kiwi, M.
    The (110) surface of iron fluoride (FeF2) is especially relevant to the understanding of the exchange bias phenomenon, which has important applications in the sensor industry, and has been extensively explored, both theoretically and experimentally. Here we investigate this FeF2 surface by means of oh mine techniques. We compute the (110) surface reconstruction, energetics, magnetic moments, band structure, charge density and electron localization function, for the two possible terminations (Fe and F). The surface reconstruction modifies the atomic and electronic structure of the free surface, yielding magnetism of a magnitude of 0.1 mu(B) per surface unit cell. Moreover, the charge density also changes, which alters the bonding in the vicinity of the surface. All these changes are expected to be relevant for exchange bias, that is once a ferromagnetic layer is deposited on the FeF2 surface. (C) 2015 Elsevier B.V. All rights reserved.