Search results for " rete"
showing 10 items of 346 documents
L’influenza dei sistemi per il condizionamento dell’aria sul consumo di energia elettrica del settore residenziale: un modello neurale
2008
Gas-liquid chromatography and lipophilicity of esters of benzoic acids
1987
Abstract The use of gas-liquid chromatographic (GLC) retention indices for the determination of lipophilicity was studied for a series of alkyl and arylalkyl esters of substituted benzoic acids. The regression relationships between the logarithms of the partition coefficients and the retention characteristics measured on two cpillary columns, SE-30 and OV-351, were evaluated. The behaviour of arylalkyl esters and of alkyl esters cannot be expressed in terms of a single regression equation. This is probably a consequence of the effect of the intramolecular hydrophobic interaction upon the retention of arylalkyl esters under GLC conditions. An analysis of the isokinetic relationships revealed…
Influence of biochar on the physical, chemical and retention properties of an amended sandy soil
2017
Soil porosity plays an important role in soil-water retention and water availability to crops, potentially affecting both agricultural practices and environmental sustainability. The pore structure controls fluid flow and transport through the soil, as well as the relationship between the properties of individual minerals and plants. Moreover, the anthropogenic pressure on soil properties has produced numerous sites with extensive desertification process close to residential areas. Biochar (biologically derived charcoal) is produced by pyrolysis of biomasses under low oxygen conditions, and it can be applied for recycling organic waste in soils and increase soil fertility, improving soil st…
Studio e sviluppo di innovativi sistemi di misura e di comunicazione per le smart grid
Comparative study of laboratory-scale thermophilic and mesophilic activated sludge processes.
2005
Laboratory-scale mesophilic (20-35 degrees C) and thermophilic (55 degrees C) activated sludge processes (ASPs) treating diluted molasses wastewater were compared in effluent quality, removal of different COD fractions, sludge yield, floc size, and sludge settleability. The effect of polyaluminium chloride (PAC) with high cationic charge on sludge settleability and effluent quality was also studied. In the ASPs, the hydraulic retention time was 12h in both processes, corresponding to a volumetric loading rate of 3.2+/-1.0 kg COD(filt) m(-3)d(-1). The mesophilic ASP gave 79+/-18% and 90+/-2% and the thermophilic ASP gave 50+/-6% and 67+/-11% total COD (COD(tot)) and GF/A-filtered COD (COD(fi…
Innovazione sociale: condivisione ed inclusione delle scelte nell’erogazione dei servizi pubblici (Decisioni a rete ed in rete).
2018
Il contributo si propone di scandagliare la tensione, cui si trova la pubblica amministrazione, tra esigenze di semplificazione e ricerca di forme di partecipazione inclusive. Partendo da una disamina del contesto attuale, dei problemi collegati al digital divide, si analizza la portata del rapporto tra innovazione sociale e welfare digitale nella pubblica amministrazione. Si approfondisce altresì il tema delle ICT come strumenti di benessere sociale, anche in funzione di trasparenza. Nuovi modelli di condivisione delle scelte: “decisioni a rete e in rete”.
Testing the shape-similarity hypothesis between particle-size distribution and water retention for Sicilian soils
2012
Application of the Arya and Paris (AP) model to estimate the soil water retention curve requires a detailed description of the particlesize distribution (PSD) but limited experimental PSD data are generally determined by the conventional sieve-hydrometer (SH) method. Detailed PSDs can be obtained by fitting a continuous model to SH data or performing measurements by the laser diffraction (LD) method. The AP model was applied to 40 Sicilian soils for which the PSD was measured by both the SH and LD methods. The scale factor was set equal to 1.38 (procedure AP1) or estimated by a logistical model with parameters gathered from literature (procedure AP2). For both SH and LD data, procedure AP2 …
Population divergence in maternal investment and embryo energy use and allocation suggests adaptive responses to cool climates
2023
1. The thermal sensitivity of early life stages can play a fundamental role in constraining species distributions. For egg-laying ectotherms, cool temperatures often extend development time and exacerbate developmental energy cost. Despite these costs, egg laying is still observed at high latitudes and altitudes. How embryos overcome the developmental constraints posed by cool climates is crucial knowledge for explaining the persistence of oviparous species in such environments and for understanding thermal adaptation more broadly. 2. Here, we studied maternal investment and embryo energy use and allocation in wall lizards spanning altitudinal regions, as potential mechanisms that enable su…
Il contributo delle scienze botaniche
2014
Efficacia degli strumenti pianificatori operanti in Sicilia per la tutela del paesaggio e della biodiversità: il caso studio di Lampedusa
2021
I processi in atto nelle aree protette dovrebbero concorrere alla conservazione e/o al ripristino della biodiversità di questi territori. Tra tutti i vincoli che insistono su un’area protetta, determinati da diversi strumenti legislativi (es. piani paesistici, regolamenti della riserva/parco, vincoli idrogeologici) la preminenza, ove presenti, spetta a quelli derivanti dalle applicazioni delle norme di tutela dei siti natura 2000. Come diversi studi dimostrano, molte specie rare e/o minacciate della flora vascolare di Lampedusa sono legate agli ambienti agricoli, mentre i consorzi pre-forestali ospitano diverse specie (corbezzolo, fillirea, mirto) non rare a livello regionale ma delle quali…