Search results for "SANITARIA"
showing 10 items of 520 documents
Global sensitivity analysis for urban water quality modelling: comparison of different methods
2012
Sensitivity analysis represents an important step in improving the understanding and use of environmental models. Indeed, by means of global sensitivity analysis (GSA), modellers may identify both important (factor prioritization) and non-influential (factor fixing) model input factors. However, despite the potentialities of GSA methods, only few applications have been published in the field of urban drainage modelling. In order to fill this gap this paper presents a comparison among three GSA methods (SRC, Extended-FAST and Morris screening) on an urban drainage storm-water model. In particular, an exhaustive discussion on their peculiarities, applicability, and reliability is presented. S…
Inscripciones perdidas del antiguo Hospital General de Valencia
2000
El fondo documental del Archivo del Hospital General de Valencia nos da a conocer la existencia en sus antiguas dependencias de dos inscripciones actualmente perdidas. Una de ellas ordenada realizar en 1512 con motivo de la fusión hospitalaria que transformó a la Casa de los Inocentes en Hospital General; la otra se data en 1687 y narraba la colocación de la primera piedra en la reedificación de la iglesia de este centro asistencial. A lo largo del artículo se examina el contexto histórico, las características físicas que debieron tener estos epígrafes, a la vez que se hace especial hincapié en la funcionalidad de los mismos y en su conexión con el pensamiento de la época, pues todo documen…
Uncertainty Assessment of a Water-Quality Model for Ephemeral Rivers Using GLUE Analysis
2011
Every model is, by definition, a simplification of the system under investigation. Although it would be desirable to reduce the gap between the simulated and the observed behaviors of the system to zero, this reduction is generally impossible owing to the unavoidable uncertainties inherent in any modeling procedure. Uncertainty analyses can provide useful insights into the best model approach to be used for obtaining results with a high level of significance and reliability. The evaluation of parameter uncertainties is necessary for calibration and for estimating the impact of these uncertainties on model performance. In this context, the uncertainty of a river water-quality model developed…
Assessment of data availability influence on integrated urban drainage modelling uncertainty
2009
In urban water quality management, several models are connected and integrated for analysing the fate of pollutants from the sources in the urban catchment to the final recipient; classical problems connected with the selection and calibration of parameters are amplified by the complexity of the modelling approach increasing their uncertainty. The present paper aims at studying the influence of reductions in available data on the modelling response uncertainty with respect to the different integrated modelling outputs (both considering quantity and quality variables). At this scope, a parsimonious integrated home-made model has been used allowing for analysing the combinative effect of data…
Biological nutrient removal using intermittent aeration in a hybrid moving bed biofilm reactor
2012
The paper presents an experimental study on a lab scale pilot plant in a Hybrid Moving Bed Biofilm Reactor. The pilot plant was fed with synthetic wastewater and was in operation considering two different operating conditions: continuous aeration and intermittent aeration. Both continuous and intermittent aeration were monitored and compared in order to seek the best conditions for carbon and nitrogen removal. At the beginning of the experimentation, an initial period of about 90 days was considered during which the pilot plant worked in bench scale configuration for allowing the formation of biofilm on the carriers. Once the biofilm growth was accomplished, the pilot plant worked for a fir…
Membrane Bioreactors for wastewater reuse: Respirometric assessment of biomass activity during a two year survey
2018
Abstract Stricter effluent limits, water shortage conditions, land availability requires today even more the needs of advanced wastewater treatments. Attractive solutions come from membrane bioreactors (MBR), Integrated Fixed Film Activated Sludge (IFAS) or combinations (i.e., IFAS-MBRs). One crucial aspect for the applicability of this overall new technology, compared to the conventional activated sludge systems, is the lack of knowledge for design and manage (e.g., kinetic constants, optimal operative conditions etc.). In view of the above frame, the aim of the present study was to assess the kinetic and stoichiometric parameters of bacterial species in MBRs by means of respirometric tech…
Anthroponyms in health care interventions
2016
Nuestro objetivo es estudiar los nombres propios que los profesionales de la sanidad utilizan para referirse y dirigirse a los pacientes en la atención asistencial. Para realizar esta investigación hemos elaborado primeramente, un gran corpus de antropónimos empleados en este tipo de interacción a partir de múltiples fuentes. Seguidamente hemos analizado, clasificado, descrito y explicado los datos obtenidos. La hipótesis es que el antropónimo constituye un elemento relevante en la relación personal sanitario/ paciente pero su uso resulta complejo. Para probar esta complejidad designativa dedicamos las siguientes páginas, que hemos dividido en tres partes: introducción, análisis de cuestion…
Los Centros Especializados de Atención a Mayores (CEAM) en la Comunidad Valenciana: un modelo de prevención gerontológica
2010
Concepto y características de un Centro Especializado de Atención a Mayores. Evolución histórica de los centros de mayores, sus áreas de intervención y programas que se desarrollan en los CEAMs. Envejecimiento activo en los CEAM. Conclusiones Specialized elder care center: concept and characteristics. Historical evolution of centers for senior citizens. Intervention areas and programs developed at CEAM. Active aging at CEAM. Conclusions.
Il foaming nei sistemi MBR: misure e valutazioni in-situ
2017
Nonostante la tecnologia MBR mostri un grande trend di crescita nel numero di applicazioni in piena scala, rimane ancora poco studiato il fenomeno della formazione di schiume all’interno dei reattori biologici che può provocare non pochi problemi gestionali degli impianti. Quest’aspetto fa sì che il fenomeno è oggi di crescente interesse scientifico, anche a seguito d’ipotesi secondo cui i fenomeni di foaming e fouling potrebbero reciprocamente influenzarsi, considerando i fattori comuni di influenza (EPS, microrganismi filamentosi idrofobici, fisiologia del fango). A tal riguardo viene anche mostrato che la ricerca scientifica condotta in Italia sull’argomento è molto ben avviata, stante l…
Analisi della fase di start-up di un bioreattore a membrana
2006
L’applicazione dei sistemi MBR, pur garantendo elevati rendimenti di rimozione, è ancora oggi limitata, a causa di alcuni fattori che ne condizionano il funzionamento. Tra questi, uno dei principali è il fouling dovuto ai fenomeni di sporcamento della membrana da parte della sospensione biologica. Nella memoria si riportano i primi risultati di uno studio che ha avuto l’obiettivo di definire l’evoluzione e l’influenza del fouling sul processo di filtrazione durante la fase di avviamento dell’impianto, avvenuto senza inoculo iniziale di fango. La sperimentazione è stata condotta in un impianto pilota costituito da un bioreattore all’interno del quale è stato installato il modulo di membrane …