1,720,965 research outputs found
L'osservazione della terra come strumento per la tutela ambientale
No full textArea 14 Tutela ambientale (Environmental protection and management): Raggiungere l’obiettivo di essere il primo continente climaticamente “neutro” entro il 2050 è per l’Europa la più grande sfida e opportunità del nostro tempo. A tal fine, la Commissione Europea ha presentato l’European Green Deal (l’Accordo verde europeo), un pacchetto di ambiziose strategie che dovrebbe consentire ai cittadini europei, insieme al settore delle imprese, di ottenere tutti i potenziali benefici di una transizione verde sostenibile. Le misure previste, accompagnate da una tabella di marcia che definisce le politiche chiave e le relative tecnologie abilitanti fondamentali, vanno dall’ambiziosa riduzione delle emissioni agli investimenti, principalmente nella ricerca e nell’innovazione, raggiungendo il risultato complessivo della protezione del capitale naturale europeo.
L’emergenza Coronavirus ha evidenziato tutta la fragilità di un’Europa basata principalmente su regole finanziarie ed economiche, mostrando le sue scarse capacità di rispondere con vera solidarietà alle emergenze comuni. Tenendo conto di tali premesse, il Presidente della Commissione è a favore di un vero “Piano Marshall per la ripresa dell’Europa” da attuare immediatamente utilizzando il bilancio europeo
5d bim: Tools and methods for digital project construction management
Full text linkThe traditional workflows used to define construction costs are characterized by a series of common criticalities due to physiological inefficiencies of analogical or not-completely-digital processes. These include the waste of man-hours due to continuous requests for clarification by the computer scientist, or the transmission of partial or unverified information by the design team, or even inaccurate and approximate measurements based on 2D drawings. This can lead to lower levels of reliability of cost estimations with consequent design risks and the need for variants in progress, exceeding the project budget or the expected timeframe. The BIM approach can mitigate these risks, but it is necessary to define a planned and robust method that supports the consistency between the items of calculation and the elements of the model. This method needs to be based on a structured breakdown of the building and the activities necessary to the project, according to a clearly planned methodology. Therefore, it is necessary to define an approach capable of generating digital workflows and automatically updating quantities (especially in the event of changes to the project), as well as to ensure the correspondence between modelled elements and computation items, in order to have a consistent workflow and make immediate and clear the updating of information on each project document. The paper is oriented to the definition of a structure for cost planning process, which uses the experimentation of computer tools aimed at extracting the quantities directly from the model, allowing the automatic update in case of changes, through the use of a PBS (project breakdown structure), shared with the entire design team, and using a code system associated with the elements of the model, the calculation, but also to specialist reports, detailed graphics and schedules
Oil spills in the Venetian Lagoon: an analysis of risk management
No full textThe possibility of a major oil spill in the Venetian Lagoon or the Upper Adriatic demands a sure response to the classic problems involved. Though there are prospects for a complete ban on oil tankers entering the Venetian Lagoon, it is necessary in the short term to devise a risk management scheme based on the comprehensive effectiveness of preventative action. The best security in this connection is provided by a synergic combination of integrated information systems (CIS and VTS), simulation models and active and passive risk control technologies. Cooperation between the Coast Guard services of the countries with coastlines on the Upper Adriatic is essential to efficient supervision of lanes designated for dangerous traffi
Experimental envelopes and their integration in the building information modeling energy simulation process
Full text linkThe present contribution deals with an ongoing Italian research which includes several steps and it is approaching to its final stage. The main goal is analysing and testing the feasibility of municipal waste reuse for designing building envelopes for Near Zero Energy Buildings (NZEB), so as to contribute to the decreasing demand for energy and improve eco-friendly waste management in urban areas. First, prefab building components have been designed using selected waste and their thermal and acoustic behaviours have been calculated, according to the European rules; then the economic costs of the obtained building envelopes have been assessed and compared to common building structures to verify their possible appeal on the Italian market, and finally the components have been assembled in the project for a small NZEB building: a didactic classroom for the Mira Porte Primary School (Venice, Italy). This paper refers to the in-depth elaboration of the project, mainly concerning fire and pollutant protection, and it focuses on the reliability check of the Building Information Modeling (BIM) parametric model, especially as concerns non-conventional materials and components. The relative building energy behaviour has been obtained exporting the BIM energy simulation model using the EC770 Integrated Design for Revit plug-in. Finally, a comparison between the results obtained with the traditional energy assessment (according to D.M. 26/06/2015) and those using the BIM model has been made to evaluate the interoperability between architectural modeling software and the energy simulation one
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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
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