Firenze University Press: E-Journals
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Ernesto Antonini, Fabrizio Tucci (a cura di), Architettura, Città e Territorio verso la GREEN ECONOMY
Get PDFUrban resilience in the historical centres of Italian cities and towns. Strategies of preventative planning
Get PDFHistorical cities and towns are a valid example of resilience in a seismic context, and earthquakes have profoundly influenced their typological and constructional evolution. The improvement of this characteristic depends a great deal on the efficiency of preventative tools. Between state of the art and analytic interpretation, the development of crisis preparation strategies based on the organised knowledge of historical-constructional data and of large scale vulnerability, integrated with an urbanistic/systematic approach at the other end of the scale is proposed. The outcomes give value to two fundamental aspects: on one hand, the rapport between modifications of historical structures and relative seismic vulnerability of the aggregate of the urban fabric, on the other, the definition of priority of constructional and urban intervention
The SELFIE façade system. From Smart Buildings to Smart grid
Get PDFThe aim of the SELFIE (Smart and Efficient Layers for Innovative Envelope) project was to develop novel adaptive envelope systems for nZEBs, within the framework of a smart city, in order to facilitate the exploitation of RES at building scale and simultaneously decrease the energy consumptions and improve indoor environmental quality in non-residential buildings. The process of designing innovative technological systems, capable of integrating smart materials and novel technologies, into the new construction and/or renovation of buildings, will be described in this paper. The objective is demonstrated how it is possible transferring know-how from different production sectors aimed to reduction of environmental impact of the built environment of our cities.
Urban energy performance monitoring for Smart City decision support environments
Get PDFIn this essay we wish to present an interdisciplinary study carried out in the framework of two Interreg Italy-Austria projects which were intended to design methodologies, simulation tools and decision support instruments to face energy challenges within the overall Smart City concept. The proposed strategy uses a physical model (“City Model”) and an energy behavior model (“City Sensing”) of the urban environment. They were developed using two different approaches: the first is mainly based on analysis of surveys data and the second one on simulations and processing of large-scale datasets. “City Model” and “City Sensing” were then merged to provide an Urban Building Energy Model - that we called “City Energy Model” - integrated with a Participatory Public GIS platform.
Effects of Packing Materials and Ethanol Concentrations on Removal of Astringency of ‘Rojo Brillante’ in Room Temperature
Get PDFMost of the persimmons grown in Afghanistan are astringent and hence their fruits require de-astringency treatments in order to become edible at harvest time. CO2 with or without ethanol treatment provides an optimal method for the rapid removal of the persimmon astringency, but it is a bit sophisticated and currently not feasible for most of farmers. The present study is therefore carried out to assess a simple and suitable technique for de-astringency of the persimmons at farmer level. The fruits of ‘Rojo Brillante’, a Pollination Variant Astringent (PVA) Spanish cultivar which is astringent, were harvested in yellow-orange color and then quickly dipped in 0, 10, 20, and 40% ethanol concentrations. The treated fruits were packed and sealed in the paper cartons, plastic bags or left open in the room temperature. Firmness, total soluble solids and astringency level of fruits were measured each three days. The astringency of ‘Rojo Brillante’ was removed when fruits treated with 20% or 40% ethanol and packed in the plastic bags for 9 days. Total soluble solids content was not affected by any of the treatments, while commercial firmness (1.5-2.5 kg) obtained by packing the fruits in the plastic bags or paper cartons alone.
Spiralling whitefly and its management practices in the South Pacific. A review
Get PDFA few species of whiteflies are considered a serious insect pest of vegetation and ornamental plants across many countries. The Spiralling whiteflies, Aleurodicus dispersus Russell has been recorded on many different plant species across countries. These whiteflies feed exclusively on leaves and have the ability to spread plant diseases. A great deal of research has been done on whiteflies in relation to which control methods would be most effective in pest management. The management of Spiralling whitefly in the South Pacific is heavily reliant on biological control (using the parasitic wasps, predators, and entomopathogenic fungi). Other control methods include physical, botanical, and chemical to keep the whitefly population at lower levels. In this paper, an overview of Spiralling whiteflies and its management practices in the South Pacific will be reviewed
Diversity of plant growth promoting Rhizobacteria of Rhus Tripartitus in arid soil of Algeria (Ahaggar) and their physiological properties under abiotic stresses
Get PDFPlant Growth Promoting Rhizobacteria (PGPR) associated with Ucria (Rhus tripartitus) represents a good alternative for including this crop in revegetation programs in arid area. In this study, 137 bacterial strains were isolated in Tryptic Soy Agar medium (TSA) from six samples of ucria’s rhizospheric soil (Ahaggar, Algeria), based on colony characteristics, Gram © reaction, oxidase and catalase tests. To evaluate their PGP activities and their physiological characteristics under stress environment, ten tests were made. Sixty strains of 16 genera were selected for their PGPR abilities, which represent 43.79% to the total of rhizobacteria isolated. The maximum bacterial population were Bacillus (35%). 71.66% of isolates were able to solubilize the phosphate, 31.66% were able to produce Indole Acid Acetic (IAA), 58.33% were siderophore producers, 28,33% were able to produce Cyanhydric Acid (HCN) and 70% were able to grow without any source of nitrogen. Indeed, PGPR strains have shown tolerance and/or resistance to several experimental environmental conditions. As a conclusion, the PGPR strains of Ucria’s rhizosphere were shown a good potential for biofertilization and biocontrol of crops, and their tolerance to abiotic stresses is an interesting step to support their utilities