1,721,185 research outputs found
Textile Membranes Reused as a Tool for Noise Control
Full text linkTextile membranes are an architectural solution used for their maximal lightness, efficiency
and adaptability. Unfortunately, once they reach their end-of-life phase, it is difficult to recover them.
To be disposed of, they undergo very expensive and often difficult recycling processes. Their reuse as
an acoustic treatment and reverberation control system is a solution to creating a light, economical
and effective acoustic system that also solves the difficult end-of-life scenario. The membranes take
on the role of acoustic diffusers, elements that, through their geometric conformation, can control
the behavior of sound. The structure of the system allows the acoustics of the interior spaces to be
conditioned through some peculiar characteristics that are influenced, in part, by the material they
are made of but above all by their shape. By cutting and joining the membranes, a modular and
repeatable element is created, which, in combination with others, enables the creation of an acoustic
control device capable of competing with traditional acoustic treatment systems without the use of
newly produced materials. The optimized shape of the membranes is the variable responsible for
the effective reduction in reverberation times: 2.2 s compared to the initial value of 7.5 without the
textile membranes
Compter et contenir les populations dans la Rome napoléonienne et de la Restauration: entre paroisse et police (1810-1840)
No full textDefence of the State and defence of religion: the transnational claims of the nineteenth century Papal State
No full textMaterial saving and building component efficiency as main eco-design principles for membrane architecture: case - studies of ETFE enclosures
No full textCompared to the traditional materials, textile membrane and foil structural enclosures use minimal quantity of materials to cover spaces or close façades, thanks especially to their tensioning ability, by shaping themselves to the forces ways, with a few additional stiffening components. However the environmental compatibility, due to their actual fossil fuel origin, together with the thermal, optical, and acoustic performances are crucial factors to be verified during the design phase. The need of understanding their potentials and limits in terms of ecoefficiency is on the debate. Starting from these concepts, the aim of the research is to demonstrate the advantages of the Life Cycle Design strategy answering to the environmental sustainability of membrane building components.The authors found out two eco-efficiency principles for the application of membranes and foils, orienting the designers towards a more sustainable whole life spanned lightweight technology’s choice. The main advancement of this research is presented adding new ETFE membranes case studies to the initial analysis (Monticelli, Zanelli, 2016). The aim of this ex-post application of the principles on built examples is the demonstration of their validness for the designer’s need and the intention is to spread their use during the early design stage. The calculation on a wider and different use of membranes allowed to sketch benchmark reference rates. The results of the data analysis show how lightweight technologies offer a high degree of freedom in shaping geometries and forms, while only their optimized application can guarantee a sustainable and LCA effective result
Structural membranes in architecture: An eco-efficient solution for the future?
Full text linkThe essay concerns the research conducted during the four years of the EU-COST Action TU1303 Novel Structural Skins (2014-2017), in which the authors coordinated the Working Group 2: Sustainability and Life Cycle Analysis of structural skin. The first objective was to investigate research trends in innovative applications of structural membranes, environmental performances and durability of textile materials in a life cycle perspective. Then, some principles of membrane sustainability have been developed, such as strategies for a more informed project, and three prerequisites for a Life Cycle Assessment (LCA) approach optimized for membrane structures have been identified. Their application, in the early design phases, is aimed at verifying the advantages and disadvantages, and the correct exploitation of the properties of membrane materials in the architectural design context
European Integration, Monetary Coordination and the Demand for Money
No full textClaredon Press Oxfor
Una prigione non solo penale: il carcere femminile di San Michele a Ripa e la sua infermeria (1733-1840)
No full text- …
