Search results for "OMAS"
showing 10 items of 1725 documents
Valorizzazione energetica delle biomasse: un caso studio mediante GIS
2009
Bisphenol A removal from water by biomass-based carbon : Isotherms, kinetics and thermodynamics studies
2020
Biomass-based carbon was modified and used as an efficient bisphenol A (BPA) sorbent. The simple and environmentally friendly modification method produced sorbent with a capacity of 41.5 mg/g. The raw material was modified with FeCl3 (Fe-CR), treated with hydrochloric acid (H-CR) or modified with CaCl2 (Ca-CR). Batch sorption experiments were performed to evaluate the effects of the initial pH, sorbent dosage, temperature, and contact time on BPA removal. BPA removal with modified carbons was notably higher than that with unmodified carbon. All sorbent materials exhibited very high sorption capacities and compared favourably to materials reported in the literature. Several isotherms were ap…
Funkcja wizerunkowa nazw blogów
2017
Przedmiotem artykułu są nazwy blogów internetowych, które jako komunikat pierwszego kontaktu z odbiorcą pełnią funkcję wizerunkową i promocyjną. Nazwy budują tożsamość i wizerunek marki, nadają jej znaczenie i przesłanie, podkreślają indywidualność i unikatowość.
Bio-Agronomic Evaluation of Brassica Carina A. Braun in a Semi-Arid Area of Sicily
2011
The need to reduce fossil fuel consumption for environmental and economic reasons is placing the farming sector in a whole new light with a new set of tasks to face. Concerns arising from climate change and decisions resulting from the Kyòto Protocol have helped reinforce the idea that multifunctional farms can make a real contribution to achieving the targets set for 2012. As a producer of dedicated energy crops – crops used to supply biomass for energy – the farm becomes a supplier of raw materials for fuel production or of energy directly. For economic, social and environmental reasons, agro-energy may be the way forward to encourage multi-functionalism in farming and, therefore, increas…
Mestieri e competenze nel cantiere di architettura in Sicilia tra Trecento e primo Cinquecento
2016
La documentazione archivistica ha fornito agli studiosi una solida base di dati per ricostruire il quadro delle professionalità operanti nel cantiere di architettura in Sicilia tra la fine del medioevo e il principio dell’età moderna. Un dato certo è innanzitutto l’esistenza di una organizzazione gerarchica che prevedeva almeno tre livelli. Al vertice della piramide si trova la figura del capomastro chiamato a dirigere l’opera e spesso ad assumere un ruolo di tipo “imprenditoriale”. Impegni e responsabilità sono spesso condivisi con un altro maestro, per ragioni di opportunità e per mantenere la libertà di contrarre più impegni lavorativi in contemporanea. Il livello immediatamente inferior…
Economic assessment of Eucalyptus (spp.) for biomass production as alternative crop in Southern Italy
2015
The increase in energy prices and the stagnation of sales prices of the main agricultural commodities required a rethinking of farm production strategies. Since during the last years, thanks to a series of policies aimed at promoting renewable sources it has been a rapid diffusion of lignocellulosic biomass species, this paper aimed at evaluating the economic feasibility of the introduction of eucalyptus (Eucalyptus spp.) as energy crop for farmers of Southern Italy, by comparing it with traditional crop rotations. In particular, economic analysis has been carried out in a representative case study located in the Sicilian hilly hinterland where, in 2013, it has been built a biomass plant fo…
Content based segmentation of patterned wafers
2004
We extend our previous work on the image segmentation of electronic structures on patterned wafers to improve the defect detection process on optical inspection tools. Die-to-die wafer in- spection is based on the comparison of the same area on two neigh- boring dies. The dissimilarities between the images are a result of defects in this area of one of the dies. The noise level can vary from one structure to the other, within the same image. Therefore, seg- mentation is required to create a mask and apply an optimal thresh- old in each region. Contrast variation on the texture can affect the response of the parameters used for the segmentation. We show a method to anticipate these variation…
Aportación al conocimiento clínico y prosnóstico de los Linfomas de Cabeza y Cuello
2015
Los linfomas son neoplasias del sistema linforreticular que asientan preferentemente en los ganglios linfáticos. Representan aproximadamente el 5% de todas las neoplasias malignas que se pueden desarrollar en la región anatómica de la cabeza y cuello. En general los Linfomas no Hodgkin son más frecuentes que los Hodgkin y suponen el 88% de todos los linfomas. En términos generales el modo de presentación más frecuente y común de estos tumores en esta región anatómica es la aparición de adenopatías cervicales Las manifestaciones extranodales aparecen en un 23-30% de los pacientes en los Linfomas no Hodgkin, siendo el anillo de Waldeyer la localización más frecuente. Por el contrario el Linfo…
Carbons from second generation biomass as sustainable supports for catalytic systems
2018
Abstract In this study activated carbons were produced from the wood of three different wood species (pine, birch, spruce). The resulting activated carbons were characterized in bulk for ash content, carbon content (elemental analyses), specific surface area, and pore size distribution, and at the surface by measuring the autogenerated pH and studying their structure by XPS. All the samples presented high surface areas and appeared to be mesoporous materials (mesopores >80%). The carbons were then used as support for AuPt nanoparticles and tested in the liquid phase oxidation of glycerol (GLY) and in the hydrogenation of levulinic acid (LA), two important chemicals from cellulose-based biom…
Organy w utworze Medytacje Tomasza Kulikowskiego
2019
This article contains the results of the analysis of the piece Meditations by Tomasz Kulikowski. He is a contemporary Polish composer, organist and teacher. The first part of the article is devoted to his life and work. The next one presents the circumstances of the creating the composition, with particular regard to the title given. Meditations were written in 2003. It is a chamber piece for the organ and cello. The third part contains an analysis of the composition structure. The significance of the organ for various elements of the work turned out to be extremely interesting. Their functions are described in the fourth part.