1,720,972 research outputs found
Fare ricerca durante la pandemia: un'esperienza di riuso creativo Making research during the pandemic: an experience of creative reuse
No full textThe experience of the pandemic has significantly changed our approach to the way we do research.
On one side we had no possibility to travel and meet colleagues in person or to visit buildings and archives, on the other side the necessity to make research activities with the few available resources and materials forced a creative use of the little that was available and to use it to the best. In a certain sense it was a great opportunity (perhaps unique and unrepeatable) to experiment with recovery and creative reuse solutions in research.
This paper describes two applied research activities developed during the pandemic using locally available materials along with some necessary items purchased on the Amazon global market.
The first activity was the construction of a small passive greenhouse made of recycled materials and components. An existing wooden bookshelf from IKEA was used for the vertical structure, while the roof structure was made by reusing and adapting some wooden beams from an experimental activities performed with some students of the Master School in Architecture.
Internal temperatures in the greenhouse as well as external ones have been measured for some days to test the thermal behaviour of the passive system.
The second activity was focused on reducing energy losses through windows by reusing bubble wrap packaging material. The reduction of the heat losses through the glass panel was calculated using a simplified procedure to obtain the thermal resistance through surface temperatures measurements. Both experiences continued even after the lockdown period and led to interesting research insights
Potenzialità d'utilizzo nell'ambiente costruito delle risorse di prossimità
No full textTerritorial proximity is a fundamental condition for generating efficient circular economy scenarios. Geographical location within a limited radius, together with the sharing of tangible and intangible resources, very often represents the starting point for the development of synergies between different players, in a logic of industrial symbiosis. The European Union has repeatedly expressed itself in favor and support of industrial symbiosis which is understood as a fundamental element for stimulating new sustainable production and consumption models, for guaranteeing a rational and efficient use of resources and for exploiting all their advantages in environmental, economic and social terms. What has already been expressed in various Communications of the European Commission has been integrated into a set of measures on the circular economy of 2018 and revised following the presentation of the European Green Deal of 2021. This research project, which is part of the initiatives "off-campus” of the Politecnico di Milano, intends to deepen and broaden the concept of industrial symbiosis towards territorial simbiosys by developing its potential and widening the boundaries to include not only the production activities traditionally considered in industrial symbiosis but alsoother activities that produce output flows such as waste or refusal in the local area (residential, commercial areas, agricultural production and services)). The objective of the research is to develop territorial tools for the activation and support of local supply chains through the mapping and management of shared local resources in accordance with the principles of circularity
Design experiences through “urban mining” processes
No full textThe built environment remains the biggest consumer of natural resourc- es globally, with construction and demolition materials among the main sources of waste in developed countries.
Technolgical advances in construction methods and materials alone are not sufficient to offset the environmental impacts of design and construc- tion processes; thus, circular design strategies should be developed and implemented to extend the lifespan of buildings, construction components and materials, keeping resources in use longer and at their highest value. Stretching this approach, this paper discusses potentials and limitations of urban mining for turning products at the end of their useful life (classified as urban waste) into a source of ‘as-new’ building products.
Challenging conventional building design approaches, the paper explores alternative construction methods with low-grade materials and interro- gates the potential of using urban waste in high performance building con- struction.
A temporary seaside facility in Liguria (Italy) is presented as an example of urban mining-based design, where type of recoverable materials, dis- tance from the building site, and collection time become additional, and yet critical, design criteria. Environmental and social impacts of urban mining at the city scale and further research opportunities are then discussed as possible venues to increase the uptake of this alternative design approac
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Architectural jam sessions. Harmonized improvisations from recycled components in Casamatta, Mulini di Gurone, Malnate, Italy
No full textThis paper presents the experiences cumulated in three stages of design-
build experimentations through the work of graduate theses on a
building that is being redesigned and retrofitted since more than a decade
by volunteer work, utilizing recycled materials and re-used components
with criteria of environmental sustainability and ultra-low economic cost.
The lessons learned have been valuable under several viewpoints.
The paper described, in particular, the works that have been built in the first
two editions of the workshops, seeking the traces of an evolution within
the experience, and attempting some considerations about the challenges
and opportunities stemming from component reuse in participated building
rehabilitation
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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