A quality management based on the Quality Model life cycle

Managing quality is a hard and expensive task that involves the execution and control of processes and techniques. For a good quality management, it is important to know the current state and the objective to be achieved. It is essential to take into account with a Quality Model that specifies the purposes of managing quality. QuEF (Quality Evaluation Framework) is a framework to manage quality in MDWE (Model-driven Web Engineering). This paper suggests managing quality but pointing out the Quality Model life cycle. The purpose is to converge toward a quality continuous improvement by means of reducing effort and time.Ministerio de Ciencia e Innovación TIN2010-20057-C03-02Ministerio de Ciencia e Innovación TIN 2010-12312-EJunta de Andalucía TIC-578

El uso del método de los elementos de contorno en el cálculo dinámico de problemas axilsimétricos

VII CONGRESO NACIONAL DE INGENIERIA MECANICA En VALENCIAThe objetive of this paper is to show the flexibility of he B.E.M. for calculation of the dynamic impedances of axisymmetric rigid foundations in homogeneuos and layered media. Beside introducing the below formulation the method is applied to the case of hemispherical foundation in order to show certain aspects of its behavior and the influence of different factors upen dynamical impedances such as internal soil damping and relative rigidity of the base in the case of two l ayered media.El objetivo de esta comunicación es mostrar la flexibilidad del Método de los Elementos de Contorno para abordar el cálculo de las impedancias dinámicas de las cimentaciones rígidas con simetría de revolución embebidas en medios homogéneos y estratificados. Además de presentar la formulación desarrollada, el método se aplica al caso de cimentaciones semiesféricas poniéndose de manifiesto ciertos aspectos de su comportamiento y la influencia de los diferentes factores sobre las impedancias dinámicas tales como: índice de amortiguamiento y rigidez relativa de la base para el caso de terrenos estratificados de tipo bicapa. Los resultados obtenidos se comparan con los de otros autores

Influencia de la distribución espacial de la excitación en la respuesta sísmica de puentes

XV Congreso Nacional de Ingeniería Mecánica, celebrado en Cádiz en 2002Se presenta un método general para estudiar la interacción dinámica suelo-estructura en la respuesta sísmica de puentes sometidos a una excitación sísmica con variabilidad espacial. Se ha desarrollado un modelo mixto de elementos de contorno y elementos finitos en tres dimensiones que pennite tener en cuenta la respuesta sísmica del puente para distintos tipos de excitación, configuraciones geométricas del puente, naturaleza y geometria del subsuelo y del terreno. Se presentan resultados para un puente recto tipo viaducto, sobre semiespacio elástico, sometido a distintos tipos de ondas incidentes, con ángulo variable respecto a la vertical y al eje de la estructura

Trace elements and C and N isotope composition in two mushroom species from a mine-spill contaminated site

Fungi play a key role in the functioning of soil in terrestrial ecosystems, and in particular in the remediation of degraded soils. The contribution of fungi to carbon and nutrient cycles, along with their capability to mobilise soil trace elements, is well-known. However, the importance of life history strategy for these functions has not yet been thoroughly studied. This study explored the soil-fungi relationship of two wild edible fungi, the ectomycorrhizal Laccaria laccata and the saprotroph Volvopluteus gloiocephalus. Fruiting bodies and surrounding soils in a mine-spill contaminated area were analysed. Isotope analyses revealed Laccaria laccata fruiting bodies were 15N-enriched when compared to Volvopluteus gloiocephalus, likely due to the transfer of 15N-depleted compounds to their host plant. Moreover, Laccaria laccata fruiting bodies δ13C values were closer to host plant values than surrounding soil, while Volvopluteus gloiocephalus matched the δ13C composition to that of the soil. Fungal species presented high bioaccumulation and concentrations of Cd and Cu in their fruiting bodies. Human consumption of these fruiting bodies may represent a toxicological risk due to their elevated Cd concentrations

A Model-Driven Approach for Business Process Management

The Business Process Management is a common mechanism recommended by a high number of standards for the management of companies and organizations. In software companies this practice is every day more accepted and companies have to assume it, if they want to be competitive. However, the effective definition of these processes and mainly their maintenance and execution are not always easy tasks. This paper presents an approach based on the Model-Driven paradigm for Business Process Management in software companies. This solution offers a suitable mechanism that was implemented successfully in different companies with a tool case named NDTQ-Framework.Ministerio de Educación y Ciencia TIN2010-20057-C03-02Junta de Andalucía TIC-578

Proizvodnja ksilitola iz hidrolizata eukaliptusova drva u jeftinim fermentacijskim podlogama

Several aspects concerning the bioconversion of xylose-containing hydrolysates (obtained from Eucalyptus wood) into xylitol were assessed. Debaryomyces hansenii yeast strains were adapted to fermentation media (obtained either by prehydrolysis or autohydrolysis- posthydrolysis of wood) supplemented with low-cost nutrients. Media containing up to 80 g/L xylose were efficiently fermented when the hydrolysates were detoxified by charcoal adsorption and supplemented with corn steep liquor.Ispitano je nekoliko mogućnosti biokonverzije ksiloze iz hidrolizata, dobivenih iz eukaliptusova drva, u ksilitol. Sojevi Debaryomyces hansenii adaptirani su na fermentacijske podloge (dobivene predhidrolizom ili autohidrolizom-posthidrolizom drva) uz jeftine hranjive dodatke. Fermentacija je bila uspješna u podlozi s 80 g/L ksiloze ako su hidrolizati bili detoksificirani adsorpcijom na aktivnom ugljenu uz dodatak kukuruznog ekstrakta (CSL)

Quantum chaos in the mesoscopic device for the Josephson flux qubit

We show that the three-junction SQUID device designed for the Josephson flux qubit can be used to study quantum chaos when operated at high energies. In the parameter region where the system is classically chaotic we analyze the spectral statistics. The nearest neighbor distributions $P(s)$ are well fitted by the Berry Robnik theory employing as free parameters the pure classical measures of the chaotic and regular regions of phase space in the different energy regions. The phase space representation of the wave functions is obtained via the Husimi distributions and the localization of the states on classical structures is analyzed.Comment: Final version, to be published in Phys. Rev. B. References added, introduction and conclusions improve

Kinetics of wet peroxide oxidation of phenol with a gold/activated carbon catalyst

Gold nanoparticles supported on activated carbon (Au/AC) have been tested in catalytic wet peroxide oxidation using phenol as target pollutant. In the current work, the effect of several operating conditions, including initial pH (3.5–10.5), catalyst load (0–6 g/L), initial phenol concentration (0.1–5 g/L), hydrogen peroxide dose (4–100% of the theoretical stoichiometric amount) and reaction temperature (50–80 °C) has been investigated. The results show that the Au/AC catalyst would be useful at relatively high pollutant to catalyst ratios (at least 0.4 w/w) and it can work efficiently within a wide range of pH (3.5–7.5). The catalyst suffers rapid deactivation but its activity can be completely restored by an oxidative thermal treatment at low temperature (200 °C). A kinetic model is presented, capable of describing the experimental results. This model is based on a rate equation of order one for hydrogen peroxide consumption and two for phenol oxidation and includes the catalyst deactivation and its temperature dependenceThe authors wish to thank the Spanish MICINN for the financial support through the projects CTQ2008-03988/PPQ and CTQ2010-14807. The Comunidad Autónoma de Madrid is also gratefully acknowledged for the financial support through the project S2009/AMB-158