1,720,952 research outputs found
Circular economy and design for change within the built environment: preparing the transition
No full textThe built environment is considered as a key sector in which circular economy can be implemented. Within the H2020 project “Building as Material Banks” (BAMB), two innovative solutions are being forward to support this transition: i.e. Materials Passports and Reversible Building Design Protocols. Based on desk research and interviews with frontrunners, key opportunities and barriers have been identified related to the implementation of both innovative solutions within policy, commercial, societal and R&D realms. In order to better understand these opportunities and barriers five emerging trends putting the current socio-technical system under pressure are explained. In addition, value chain and value network analyses of business-as-usual and stateof- the-art practices have been examined over major building phases: conceptualisation & design, construction, usage/operation, demolition/deconstruction & repurposing. We observed that that it is unlikely that an actor will be involved within all phases of the building and that the availability of building (product) information over all building phases is restricted. By supporting the development of Materials Passports and Reversible Building Design Protocols actors involves within the conceptualisation, design and construction stages will better understand why circular and change-supporting building design strategies are necessary. Moreover, the development of Materials Passport IT Platform and a BIM prototype will serve as a proof-of-concept on exchanging information on building products and the building's operation to actors involved within reverse logistics
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
Assessing potential financial and environmental benefits of a newly developed waste traceability system in Flanders
No full textMost of the mixed stony demolition waste within Flanders ends up as aggregates for foundation and road works. In order to recover waste for higher value applications, selective demolition and waste management practices need to be improved. The aim of this paper is to assess the potential environmental and financial benefits and drawbacks on selective demolition and waste management activities of a waste traceability system (Tracimat), currently developed within Flanders. The selective demolition and waste treatment in 2015 of an old milk factory in Flanders has been taken as a representative case-study. Business-as-usual demolition, sorting, transport and waste management activities were closely monitored and taken as reference for a virtual case-study in which the application of the Tracimat system was simulated. In addition, a local demand of separated masonry and concrete debris for high value recycling purposes has been assumed within the virtual case. Life cycle assessment and life cycle costing analysis were used to calculate environmental impacts and financial costs over the entire time span of both cases. Compared to the business-as-usual practice, the Tracimat supported case leads to an important decrease (50%) in operational waste treatment costs and to a significant decrease (7-14%) in potential impact related to some environmental categories. In order to further improve the environmental and financial profile of selective demolition and waste treatment practices in Flanders, measures decreasing the importance of heavy machinery and trucks, in addition to the use of the Tracimat system, need to be taken into account
Assessing potential financial and environmental benefits of Brick-to-Brick manufacturing
No full textDue to a lack of high value applications for masonry debris, there is currently no incentive to separate it from other stony fractions. Within this paper the potential environmental and financial advantages and drawbacks related to the production of 1 ton of load-bearing clay bricks with a compressive strength of 15MPa, in which the coarsening agent is substituted by masonry debris aggregates (cf. brick-to-brick manufacturing) are investigated. Life cycle assessment and life cycle costing analysis were used to calculate environmental impact and financial costs, respectively. Compared to the business-as-usual practice, "brick-to-brick" manufacturing leads to a decrease in potential impact related to some environmental impact categories (2-6%) and a decrease of 10% of operational costs related to acquisition and transport of main resources to the production facilities. Nevertheless, the environmental impact and operational costs related to the consumption of electricity from the grid and natural gas during the manufacturing process surpass the potential benefits related to the substitution of the coarsening agent. In order to further improve the environmental and financial profile of brick production processes at Dumoulin Bricks facilities, combined measures to decrease energy consumption and substitution of primary resources need to be investigated further
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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