Search results for " Rene"
showing 10 items of 263 documents
Oxygen-containing polycyclic aromatic hydrocarbons (OPAHs) in urban soils of Bratislava, Slovakia: patterns, relation to PAHs and vertical distributi…
2011
Abstract We determined concentrations, sources, and vertical distribution of OPAHs and PAHs in soils of Bratislava. The ∑14 OPAHs concentrations in surface soil horizons ranged 88–2692 ng g−1 and those of ∑34 PAHs 842–244,870 ng g−1. The concentrations of the ∑9 carbonyl-OPAHs (r = 0.92, p = 0.0001) and the ∑5 hydroxyl-OPAHs (r = 0.73, p = 0.01) correlated significantly with ∑34 PAHs concentrations indicating the close association of OPAHs with parent-PAHs. OPAHs were quantitatively dominated by 9-fluorenone, 9,10-anthraquinone, 1-indanone and benzo[a]anthracene-7,12-dione. At several sites, individual carbonyl-OPAHs had higher concentrations than parent PAHs. The concentration ratios of se…
I modelli urbani della ricostruzione post-sismica degli anni ‘60 a confronto con la contrazione demografica dei territori interni della Sicilia. Caso…
2021
Il contributo prende in esame gli esiti prodotti a lunga distanza dai modelli urbanistici adottati in Italia nel secondo dopoguerra, caratterizzati da dinamiche espansive e dotazioni di servizi pubblici dimensionati in base agli standard. Gli effetti della contrazione demografia su tali modelli insediativi, che dispiegano oggi una serie di problematiche che conducono alla necessità di una riorganizzazione spaziale, vengono osservati su un campione particolarmente significativo al riguardo rappresentato dalle città ricostruite ex-novo nel secondo Novecento a seguito di movimenti tellurici. Il caso in esame riguarda il terremoto della Valle del Belice del 1968 e descrive come le nuove città, …
ENERGY FOR ROMANIA FROM RENEWABLE RESOURCES
2012
The European Union admits the fact that energy is essential, for the development of the European economy, but that it also constitutes a challenge, due to the impact on climate change. In Romania, as well as in all the countries of the European Union, which have chosen to promote renewable energy, governments have come up with support frameworks for investors in this field. In Romania’s case, the option for green schemes and compulsory quotas was selected, meaning that each energy producer, which produces renewable energy, receives a number of green certificates for each MW produced, depending on the technology it uses. The price of such a green certificate varies between 27 – 55 Euros. The…
Preliminary results of a PV closed greenhouse system for high irradiation zones in south Italy
2011
Compact city: agent-based simulation and sustainability assessment
2013
Energy and Environmental Assessment of a Hybrid Dish-Stirling Concentrating Solar Power Plant
2022
Although the 2019 global pandemic slowed the growing trend of CO2 concentrations in the atmosphere, it has since resumed its rise, prompting world leaders to accelerate the generation of electricity from renewable sources. The study presented in this paper is focused on the evaluation of the energy and environmental benefits corresponding to the hypothesis of hybridizing a dish-Stirling plant installed on the university campus of Palermo (Italy). These analyses were carried out by means of dynamic simulations based on an accurate energy model validated with the experimental data collected during the measurement campaign that occurred during the period of operation of the reference plant. As…
Proyecto: cámara de conservación de libros para la Biblioteca Histórica de la Universitat de València
2017
Las dificultades para conseguir unas condiciones ambientales óptimas para la conservación de nuestro patrimonio bibliográfico y el elevado consumo energético necesario para mantenerlas han sido algunas de las premisas que nos han llevado a la proyección y realización de esta cámara de conservación. En ella se ha creado un espacio libre de influencia exterior que facilita la obtención de un clima adecuado y estable, con un consumo mínimo de energía, en el que se controlan los principales factores de degradación ambiental: temperatura y humedad precisas y estables, así como un control minucioso de la contaminación atmosférica y biológica; todo ello dirigido a aumentar la esperanza de vida de …
Impact of Wind Electricity Forecasts on Bidding Strategies
2017
The change in the generation mix from conventional electricity sources to renewables has important implications for bidding behaviour and may have an impact on prices. The main goal of this work is to discover the role played by expected wind production, together with other relevant factors, in explaining the day-ahead market price through a data panel model. The Spanish market, given the huge increase in wind generation observed in the last decade, has been chosen for this study as a paradigmatic example. The results obtained suggest that wind power forecasts are a new key determinant for supply market participants when bidding in the day-ahead market. We also provide a conservative quanti…
APPROCCIO MINIMAMENTE INVASIVO ALLA NEFRECTOMIA DA DONATORE VIVENTE A SCOPO DI TRAPIANTO: TECNICHE LESS E NOTES
Il trapianto di rene è al momento il miglior trattamento per i pazienti affetti da IRC terminale. Il costante e graduale aumento del numero dei pazienti che necessitano di tale tipo di trattamento, e la crescente carenza di donatori cadavere, hanno reso necessario lo sviluppo di strategie volte ad allargare ed ottimizzare il pool dei donatori impiegando, a scopo di trapianto, reni provenienti da donatori viventi. Il trapianto renale da vivente rappresenta in quest’ottica la carta vincente, in grado di ridurre i tempi di attesa; è stato anche dimostrato che si hanno risultati migliori rispetto al trapianto di rene da donatore cadavere in quanto vi è una maggiore compatibilità genetica tra do…
The Fluid City Experience: An Update
2016
This chapter describes the actual status of thirteen European cities that become fluid cities through their strategies for urban regeneration. These cities are divided into three groups: the large port-cities, the medium rank “city-port” cities, the riverfront cities. For every city, we define the status of urban environment and population, the trend for port and airport traffic and the strategies for urban regeneration.