1,709 research outputs found
GLOBAL WOMEN’S BREAKFAST 2025 - MULTIDISCIPLINARITÀ E INTERDISCIPLINARITÀ IN CHIMICA: UNA RISORSA POCO VALORIZZATA DALLE ISTITUZIONI ACCADEMICHE
No full textThis year the “Global Women’s Breakfast 2025” event, organized on the University
campus of Chieti and promoted by IUPAC, focused on the importance of innovative and
inclusive science education. The role of multidisciplinarity / interdisciplinarity and the
necessity of breaking down academic barriers to make science more accessible to
everyone were discussed by experts. The meeting strengthened networking between
women scientists, who intend to voice a demand for cultural and structural change in
the Italian academic system
Valter Balducci: Spiagge urbane. Valentina Orioli: La città del turismo balneare nelle riviere della Romagna
No full textSchermi. Immagini, corpi, condivisioni
No full textIn this book the author investigates the digital image proliferation of our times from an interdisciplinary point of view. Starting from the Visual Culture theoretical frame, Valentina Mignano explores the ways in which we interact with the screen, dealing with the "screen experience" in the first years of the network societ
Cellulose Nanocrystals Obtained from Cynara Cardunculus and Their Application in the Paper Industry
No full textBiorefinery aims at designing new virtuous and high-efficiency energy chains, achieving the combined production of biofuels (e.g., bioethanol) and biobased products. This emerging philosophy can represent an important opportunity for the industrial world, exploiting a new kind of nano-smart biomaterials in their production chains. This paper will present the lab experience carried out by the Biomass Research Centre (CRB) in extracting cellulose nanocrystals (NCC) from a pretreated (via Steam Explosion) fraction of Cynara cardunculus. This is a very common and invasive arboreal variety in central Italy. The NCC extraction methodology allows the separation of the crystalline content of cellulose. Such a procedure has been considered in the literature with the exception of one step in which the conditions have been optimized by CRB Lab. This procedure has been applied for the production of NCC from both Cynara cardunculus and microcrystalline cellulose (MCC). The paper will discuss some of the results achieved using the obtained nanocrystals as reinforcing filler in a paper sheet; it was found that the tensile strength increased from 3.69 kg/15 mm to 3.98 kg/15 mm, the durability behavior (measured by bending number) changed from the value 95 to the value 141, and the barrier properties (measured by Gurley porosity) were improved, increasing from 38 s to 45 s
An Innovative Tool for Technical, Environmental and Economic Design of Building Energy Plants: A Case Study in Umbria
No full textAbstractThe European goals on environmental sustainability and carbon footprint reduction should be reached by the installation of Renewable Energy Sources (RES) plants. However, the massive development of RES plants has inevitably caused new relevant problems and critical situations due to their low energy density, their social acceptance and the non-programmability of some sources. A smart tool is proposed to evaluate the integration feasibility of different energy plants; this tool is also able to estimate the environmental impacts caused by the several proposed plants for building energy production in terms of land usage, carbon footprint and water consumption. A case study, a rural tower shaped building in Umbria, is analyzed to validate the innovative tool: environmental, energy and economic parameters are calculated to allow the designer to define the best energy plant configuration
The new Olfactometry Laboratory of the CIRIAF/CRB - University of Perugia: description of the equipments, start-up phase and first training and measurements
No full textThe CIRIAF/CRB - University of Perugia has recently started-up the first Dynamic Olfactometry Laboratory in the central Italy in order to conduct analyses and measurements of odours according to the UNI EN 13725: 2004 and also to develop academic research projects in this field. The dynamic olfactometry is an international standardized method which allows to measure the odour level. Measures are conducted with a group of qualified panelists (human receptors) by varying sample gas dilution. Considering the regional and national context, the investigation of the odour emissions from agro-industrial activities is a field of study with no precise rules but only some guidelines. This is related to the nature of the odour emissions that are not-releasable in advance from the subjective perception of the phenomenon. However, in the last years, a growing interest on this subject is caused by problems of social acceptability of energy plants handling and processing some stored organic materials (e.g. new biogas plants, landfills, farms, distilleries, etc.). The new CIRIAF/CRB Lab is equipped, further to the olfactometry facilities, with a new conditioning system ensuring the control of the main parameters for the indoor air quality inside the olfactometry chamber (e.g. pressure, temperature, air fluxes and carbon dioxide levels) and with a lighting system allowing the variation of the light colour inside the olfactometry test room
Evaluation of the odor impact of some environmental gaseous pollutants: calibration of the methodology and preliminary results
No full textDuring the last decades, it has been observed a growing interest on odor impact because of the frequenter social acceptability problems about energy plants handling and processing stored organic materials (e.g., biogas plants, landfills, farms, distilleries, etc.). In this context, the UNI EN 13725:2004 indicates the “dynamic olfactometry method” as validated, recognized, and adequate measurement procedure for estimating the odor concentration. This protocol is carried out by a panel of specifically trained and selected human receptors, but alternative analytical methodologies are currently under discussion. This work aims to describe the initial steps of a wider research toward the definition of a new analytical protocol for monitoring odor concentration. The alternative methodology is here presented through the implementation of a case study: stored organic materials exploited on an energy plant in Central Italy. The paper describes the preliminary activities related to the survey of the case study (i), the definition of alternative methods and devices for conducting emissions sampling (ii), and the adopted experimental approach (iii). Finally, preliminary results are also presented (iv). The resulting protocol, once validated, could be employed by local authorities to measure both the odor impacts and the effectiveness of specifically designed mitigation strategies
Nanocrystalline cellulose from lignocellulosic biomass: applications and future prospects
No full textLignocellulosic Biomass Feeding in Biogas Pathway: State of the Art and Plant Layouts
No full textAbstractThe traditional pathway for biogas production consists in the anaerobic digestion of starchy and sugar biomass mainly from dedicated energy crops, needing agricultural land and heavy irrigation. A retrofitting of the existing biogas plants is proposed in order to reduce competition with food crops and to increase the sustainability of the whole chain in terms of land and water consumption; moreover the use of the lignocellulosic biomass is evaluated. The biomass after physical, chemical or biological pretreatment can be digested in a biogas plant to reduce the current diet without affecting the biogas production.The present study analyzes the state of the art in the lignocellulosic biomass feeding into biogas plants and describes a preliminary techno-economical study of the pathway and the layout to be adopted, including the efficiencies and energy yields of the involved processes
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