1,721,012 research outputs found
Ingegneria sanitaria ambientale
No full textIl volume tratta gli argomenti centrali dell’Ingegneria sanitaria-ambientale (acqua, rifiuti e aria) con un approccio rivolto alla descrizione dei processi e ai criteri di calcolo. Come tale, ha un carattere tecnico-scientifico e progettuale, ma sviluppato con la necessaria gradualità al fine di renderlo facilmente comprensibile anche a studenti e giovani ingegneri.
Per quanto riguarda il settore dell’acqua si è cercato di caratterizzare le acque da un punto di vista qualitativo e quantitativo per poi trattare i vari processi biologici e chimico-fisici. Ampia attenzione è dedicata al riciclo delle acque e alla prevenzione dei fenomeni di inquinamento dei corpi idrici superficiali.
Nel settore dei rifiuti sono trattati gli argomenti che contribuiscono alla soluzione integrata di recupero/trattamento/smaltimento dei rifiuti urbani. Uno specifico capitolo è stato dedicato al trattamento dei rifiuti industriali.
Nel settore aria la trattazione parte dall’analisi degli inquinanti e dei relativi effetti sull’uomo e sull’ambiente fino a rappresentare i diversi processi oggi disponibili per il trattamento delle emissioni.
È stata cura degli Autori sviluppare i vari argomenti ponendo attenzione al vigente assetto normativo nazionale e internazionale
The mass and energy balance of an integrated solution for municipal solid waste treatment
No full textThis paper describes a study conducted to evaluate the best scenario regarding the integrated management of municipal solid waste (MSW) in a large basin in North of Italy. Three different scenarios were defined with various technological
solutions, having as principal core the selective collection, the energy recovery and the modality of final disposal. The comparison was done considering both mass and energy balance, trying to focus on the most suitable solution. The
solutions cannot be definitive without having also developed a survey on the environmental and economic sustainability of the various alternative cases. However, an assessment made by developing balances of mass and energy demonstrates that the more interesting and favorable scenarios involve greater energy recovery, in particular with gasification and anaerobic digestion of the organic matter
Sustainable biofuels for rural areas of developing countries: Brasilian case study
No full textThe objective of the application is to describe a project for sustainable development, proposed in Brazil regarding energy production and economic self-sufficiency, using as a raw material, the residual oil and other biomass available in this country. Additionally, the potential of biofuel in Brasil is also discussed
Batchsize e criteri topologici: un approccio combinato per l'ottimizzazione in sicurezza
No full textIntegrated MSW management in the district of Frosinone (Italy): environmental performance analysis by means of an LCA-based software
No full textMunicipal Solid Waste (MSW) management is a major concern for all urban areas, which needs to be accomplished referring to integrated strategies. Those strategies can be effective only as a result of commonly shared analyses and choices with respect to the entire involved territory. This paper presents a model for the implementation of integrated MSW management policies and an application of such model addressed to the specific scenario which characterizes the MSW management system currently adopted in the District of Frosinone (Lazio, Italy). Based on the environmental, social, economic and technological conditions of the specific area and on its developing potential, the model provides the environmental impact of the assumed scenario by means of an LCA-based procedure. Results of model application are presented in order to set the basis for a critical analysis of those treatment and disposal options currently available at the investigated area, and of the chosen solid waste (SW) flow allocation. This is aimed at supporting decision makers in the planning of future MSW management policie
Biocombustibili durabilipentruzonele rurale in curs de dezvoltare: cazul brabrazilei (Sustainable biofuels for rural areas of developing countries: brazilian case study)
No full textThe objective of the application is to describe a project for sustainable development, carried aout in Brazil and regarding energy production and economic self-sufficiency, using as a raw material, the residual oil from establishments that provide human food like hotels, restaurants, hospitals etc
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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