Search results for " tecnologia."
showing 10 items of 1339 documents
METHODOLOGIES FOR THE ENHANCEMENT AND THE PRESERVATION OF CULTURAL HERITAGE: THE CRITERIA TO DOCUMENTATION, DIFFUSION AND PREVENTION MEASURES
2014
Recovering our building heritage has a fundamental role regarding renewal process, since it constitutes one of the strategies for urban and territorial balance. The project of building recovery, therefore, mainly addresses the adjustment to new housing and urban needs, but it is obviously conditioned and/or “restricted” by the limitation of the building itself, in particular when the intrinsic characteristics must be preserved. The concept of “restriction” extends to its relation with the site, to the quality of the image, to the living conditions. Therefore any intervention of building recovery needs a philological study as a starting point, which consists of a critical interpretation of t…
Materials for sustainable architecture in the Mediterranean region
2016
There has been recent increased use of earth for construction of buildings in developed countries, largely because of concerns with the environmental impact and embodied carbon from fired bricks and cement based products. Of all forms of earth construction, the widest impact on modern construction is likely to come from commercially produced unfired earth masonry where large scale production can significantly reduce costs. The use of traditional materials in the Mediterranean area needs to be reassessed with a thought given to environmental sustainability, but also with an eye to the reappropriation of the predominantly massive nature of Mediterranean architecture. This article contemplates…
Architettura contemporanea in terra cruda
2010
It is estimated that between a third and a half of the world's population, approximately three billion people on six continents, lives in building constructed of earth. Earth building are commonly perceived to be used only by the poor or found only in developing countries, but there are earth buildings of almost every architectural type in use by every economic and social class in both the industrialized and non-industrialized worlds.
Earth Construction: The Mechanical Properties of Adobe with the Addition of Laponite
2015
The contribution describes testing of compression strength, flexural strength and abrasion resistance of adobe made up of soil, water and sand (AS), soil, water, sand and straw (ASP), soil, water, sand and laponite nanoparticles (ASN). Embodied energy in materials presents an increasingly high percentage of the energy spent in the whole life cycle of a building. The same applies for carbon dioxide (CO2). Therefore, the development of new sustainable construction materi- als with lower embodied energy and lower CO2 emissions is needed. The use in construction of the brick made from soil, water and sand or straw, called adobe, boasts a millenary tradition and in recent years there has been re…
Sustainable mobile vertical partition / Pannello verticale mobile sostenibile
2016
Pannello per realizzare partizioni mobili verticali, costituito da: un telaio principale in legno con funzione strutturale (a); una stuoia di canne schiacciate e intrecciate con funzione di chiusura (b); una cornice e un sistema di listelli in legno con funzione di supporto (c); uno strato di intonaco in terra cruda con funzione di finitura (d), posto su un lato della stuoia di canne (b). Panel that can be used for realize mobile vertical partition, consisting of: a main wooden frame which functions as a structure (a); a mat realized with flattened and intertwined canes which functions as a closure (b); a wooden frame and slatted framework which function as a support (c); a layer of earthen…
Strategie ecosistemiche e infrastrutture verdi in simbiosi con il costruito
2022
Il numero 11 di AGATHÓN raccoglie saggi, studi, ricerche e progetti sul tema Vegetazione | La sua Simbiosi con il Costruito richiamando il ruolo che la Natura in generale e la Vegetazione in particolare possono svolgere nel breve periodo per affrontare l’attuale sfida del surriscaldamento globale e dei cambiamenti climatici causati da deforestazioni e incendi boschivi, urbanizzazioni selvagge, uso indiscriminato di materie prime non rinnovabili e incremento delle emissioni di anidride carbonica, tutti fattori che determinano un impatto devastante sul nostro ormai fragile ecosistema, sulla società e sull’economia. Se Simon aveva intuito già nel 1969 il potenziale di una ‘nuova ecologia’ in c…
Un approccio progettuale per la rigenerazione sostenibile
2020
This paper describes the methodology of research and analy- sis that have been adopted in order to develop the targets of the project, along with the design proposal. A literature review about urban regeneration ad its best practices and a deep study of the various features and peculiarities of the area has been conducted. Such a study guided the definition of the criteria that must be ap- plied to develop the project. The proposal of urban regeneration aims to retrain the whole di- strict by retrofitting ENPAM’s buildings and industrial sheds by the railway as well as redesigning the public spaces and the green areas. The remainder of this paper is organized as follows. The first section o…
Polyamide-Based Fibers Containing Microwave-Exfoliated Graphite Nanoplatelets
2016
Exfoliated Graphite NanoPlatelets (GNP) have been obtained from Graphite Intercalation Compounds (GIC) subjected to thermal and microwave treatments. Accurate morphological and structural characterization of obtained GNP, performed to compare the degree of exfoliation, show that microwave-treated GNP, exhibit well-exfoliated structure, without any reduction in dimensions compared with the native GIC, differently to the thermal-treated ones. Microwave-treated GNP have been introduced in polyamide (PA) through melt-mixing to obtain nanocomposite that has been subjected to elongational flow, with the aim to improve the nanofiller dispersion and induce GNP orientation along the fiber direction.…
Nano-structured materials in new and existing buildings: to improved performance and saving of energy
2009
Improving well-being in buildings, in relation to energy conservation, represents a great challenge. In southern Italy a basic problem is that of keeping buildings cool in the summer months. This problem affects not only newly-erected buildings, but also the large number of existing buildings, some of which are of historical importance. Nano-technology represents an excellent opportunity to harness the salvage of existing buildings to the living requirements of contemporary society. The use of nano-structured materials in newly-erected buildings will lead to improved performance and a considerable saving of energy. Above all, the use of nano-structured materials in existing buildings will p…
On the impact of within-die process variation in GALS-Based NoC Performance
2012
[EN] Current integration scales allow designing chip multiprocessors (CMP), where cores are interconnected by means of a network-on-chip (NoC). Unfortunately, the small feature size of current integration scales causes some unpredictability in manufactured devices because of process variation. In NoCs, variability may affect links and routers causing them not to match the parameters established at design time. In this paper, we first analyze the way that manufacturing deviations affect the components of a NoC by applying a new comprehensive and detailed within-die variability model to 200 instances of an 8¿8 mesh NoC synthesized using 45 nm technology. Later, we show that GALS-based NoCs pr…