1,721,018 research outputs found
Effects of thermo-alkali pre-treatments on WAS and technical-economic assessment for their applicability in the largest Italian WWTP
Full text linkL'abstract è presente nell'allegato / the abstract is in the attachmen
Circular Water Resources Integrating Sustainability and Innovation in Wastewater and Water Management
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FIGURE 2 in Two newly introduced tropical bark and ambrosia beetles (Coleoptera: Curculionidae, Scolytinae) damaging figs (Ficus carica) in southern Italy
No full textFIGURE 2. Female of Xyleborus bispinatus, dorsal viewPublished as part of Faccoli, Massimo, Campo, Giuseppe, Perrotta, Giancarlo & Rassati, Davide, 2016, Two newly introduced tropical bark and ambrosia beetles (Coleoptera: Curculionidae, Scolytinae) damaging figs (Ficus carica) in southern Italy, pp. 189-194 in Zootaxa 4138 (1) on page 192, DOI: 10.11646/zootaxa.4138.1.10, http://zenodo.org/record/26086
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
Optimization methodology for automotive chassis design by truss frame: A preliminary investigation using the lattice approach
No full textThe present paper investigates the application of optimization methodologies to vehicle chassis in view of an integrated and transdisciplinary vehicle design. A detailed sizing optimization in cascade to Topology Optimization (TO) for the design of automotive chassis is investigated. This approach is also known as lattice optimization. The TO is employed to find a coarse optimum chassis lay-out under linear elastic conditions. The second stage of the methodology converts into a truss frame the edges of the FE cells, including only the elements that remained above a certain density threshold after TO. The diameter of each truss is then optimized in view of chassis weight reduction while meeting a set of given design requirements, such as maximum stress and minimum size. Various tubular frame architectures for lightweight solutions are considered complying with different sets of constraints over different design spaces. Finally, the balance between the computational cost and the feasibility of the lattice solution is discussed in comparison to TO
Valorization of waste from a vegetable processing plant by anaerobic digestion: scale effect
No full textThis work is aimed to assess the methane potential production of a mixture of three waste that come from a food industry plant with a capacity of treating vegetables of about 12,000 t/y and an annual waste production of 400 t. For the above-mentioned purpose, tests in semi-pilot (batch, 6L-reactors) and pilot (semi-continuous, 300L-reactor, hydraulic retention time, HRT = 30 d) scale in mesophilic conditions were carried out. The mixture of organic waste subjected to tests had a total solid (TS) content of about 10% b.w. (by weight), a VS/TS ratio of 0.9, a C/N ratio of 15 and a disintegration rate constant of 0.382 d-1. Semi-pilot scale tests returned a specific biogas production of 0.55 Nm3/kg VS (VS, volatile solid), with an average methane content of 53% b.v. (by volume). On the other hand, the specific biogas production from the pilot scale test set up at 0.503 Nm3/kg VS with a methane content of only 44% b.v. The high residual VS content detected in the digestate coming from the test in semi-continuous mode (about 35%) leads to assume that better results could have been obtained using longer HRTs or a more efficient mixing syste
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
Scale-up evaluation of the anaerobic digestion of food-processing industrial wastes
Full text linkThis work proposes a semi-pilot scale procedure for the evaluation of biogas production potential and the employment of its results for the scale-up of the process. AD tests were performed at 35 C in 6 L reactors, feeding 3e6% w/w TS in a fed-batch mode. Several substrates, generated by food-processing industries, were considered in the study. Assuming solubilization as the limiting step, a theoretical model was proposed and the values of the disintegration kinetic constant (kdis) were calculated from the experimental data. The obtained model was employed as a control tool during tests afterward performed on pilot scale in a 300 L digester fed in a semi-continuous mode. Biogas yields between 0.5 and 0.9 Nm3/kgVS, and methane contents of 55e63% v/v were obtained on both scales. The model derived from the results of the proposed procedure appeared adequate for a consistent evaluation of the scale-up of the AD process
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