335 research outputs found
Mikhail Bakhtin, author and hero. Translated from Italian by V.N. Belov
No full textПеревод сделан по: Salizzoni R. Michail Bachtin, autore ed eroe. Torino: Trauben, 2003. P. 7-19
Wind fluctuations affect the mean behaviour of naturally ventilated systems
No full textWe study the dynamics of a naturally ventilated room in which a point source provides a steady source of buoyancy and which is affected by an opposing unsteady wind. The wind is modelled as a stochastic forcing, which aims at simulating realistic velocity fluctuations as observed in the lower atmosphere. Our main finding is the occurrence of a "noise-induced transition", namely a structural change of the mean behaviour of the system: the warm-cold air interface does not fluctuate around the elevation exhibited when wind is constant, but oscillations occur around a new (significantly lower) interface elevation. We provide the physical explanation for such a counter-intuitive behaviour and show its dependence on (i) wind characteristics (intensity and timescale of fluctuations) and (ii) relative strength of wind over thermal loads. A realistic example case shows that the behaviour highlighted here has potentially major implications in the design and management of naturally ventilated buildings
Recent advancement from flow and dispersion studies around bluff bodies for urban environment applications
No full textThis paper reviews recent studies pertaining to flow and pollutant dispersion around buildings and complex geometries (real cities). Field/laboratory experiments and numerical simulations (mainly Computational Fluid Dynamics, with attention to Large Eddy Simulation approach) performed by us as well as by other researchers who have looked at flow, turbulence, dispersion and ventilation around bluff bodies are considered. We attempt to review state of the art results considering that the urban complexity is not only due to the packing density, but also spatial building-height variability, thermal properties, the presence of vegetation. These findings are discussed in light of recent advances of operational urban dispersion models
Ecomuseums and ecological transition: the good practices of the Ecomuseo della Judicaria in Trentino
No full textPutting the Park-Landscape Alliance to the Test: Protected Landscapes as a Proving Ground
No full textToday, there is widespread hope that it will be possible to achieve an alliance between the policies developed inside protected natural areas and landscape policies, in that such an alliance is considered to be beneficial for the conservation of both nature and the landscape. One place that may have the right qualities to host this alliance is the Protected Landscapes (category V protected areas, according to the IUCN classification system), where natural and cultural values are closely connected. This paper uses three Protected Landscapes along the Spanish, French, and Italian coasts in its case studies to verify the methods used to implement policies for the landscape. A rather varied picture emerges, in which more and less positive signs of the "Park-landscape" alliance are identified, and these signs in turn indicate some possible paths to follow to promote this link
A combined citizen science-modelling approach for NO2 assessment in Torino urban agglomeration
No full textThe #CHEARIATIRA citizen science campaign was developed in February 2019 in Torino (western part of the Po Valley megacity region). The aim of the campaign was public engagement with measuringNO2 concentrations in an urban area that often exceeds air quality standards. NO2 diffusion tubes were employed by citizens under our supervision. In this paper, we present the main outcomes of a combined approach between the #CHEARIATIRA campaign and the urban dispersion model SIRANE. The results were validated against the available public Air Quality Monitoring Stations (AQMS). The citizens' passive samplers and the modelled data show a good response in central districts both during the campaign interval and by annual projection. Traffic hotspots and sensitive receptors (schools, hospital) have high concentrations of NO2. Most of the study area (83% of the tubes) is subject to an increased risk of premature death according to epidemiological literature
Foreword
No full textThe book focuses on the relationship between nature conservation policies and landscape policies. This is a relevant subject due to the current need of reviving nature conservation policies, which are today affected by a general effectiveness deficiency. To this end, landscape policies can play a crucial role, bridging nature and culture, fostering more integrated approaches to nature conservation and stimulating the active participation of local communities.
The book gathers reflections, researches and experiences developed on an international level on this subject by experts coming from different international contexts (Europe, U.S.A.), various disciplinary backgrounds (geographers, planners, biologists, historians, jurists, economists, etc.) and several institutional bodies (Universities, administrative bodies, international organizations such as IUCN, EUROPARC Federation, UNESCO, etc.).
The overall reflections gathered in the book - which is divided in three main sections: regulations and institutional frameworks, policies, actions and tools - combine to suggest innovative visions about the relationships between nature policies and landscape policies
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