1,721,527 research outputs found
Conventional and electric vehicles: A complete economic and environmental comparison
No full textAutomotive sector is one of the main sectors in terms of fuel consumption and environmental damage (pollutant air emissions). A great number of studies has been conducted in recent years on the convenience of a migration from fossil fuel vehicles to electric vehicles, with different approaches and assumptions and, generally, different conclusions. It is difficult, therefore, to make full use of these conclusions, especially for non-expert policy community. This paper proposes a simple but complete methodology to evaluate unitary operating cost of electric and conventional drive vehicles (ICE - internal combustion engine vehicle) in order to provide a repeatable comparison referring to main scenarios representative of realistic contexts. In detail, the comparison is based on a optimization mathematical procedure, which includes economic and environmental indicators, to evaluate operating cost of the vehicles. © 2015 IEEE
Cognizione sociale e autismo. Modelli comportamentali, implicazioni cliniche e valutazione
No full text
Solar-powered microgrid for electric vehicle applications: A conceptual solution and its control logic function
No full textSeveral solutions to renewables dispatchability challenges are currently being proposed or employed such as storage and Demand Size Management. Also, electric vehicles represent a good opportunity to support renewables expansion thanks to the synergic possibility of offering a storage system and a demand management solution in connection with a control logic system. To this aim, this study investigates the feasibility to recharge electric vehicles, using solar energy from photovoltaic plants, into a "local microgrid" developed in a shopping centre parking area. In particular, an "integrated" control system will be proposed to manage simultaneous accesses to the electric charging stations for maximizing use of solar source (Microgrid module) and also evaluate impacts on microgrid stability (Powerflow module). The developed control logic, in particular, using deterministic model of queuing management, focuses the attention on computational simplicity to obtain a fast response system
Poggibonsi (SI). Poggio Imperiale: la chiesa di Sant’Agostino (tredicesima campagna di scavo; agosto-ottobre 2006)
No full text
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
La fondazione di Poggiobonizio sulla via Francigena: evidenze materiali e struttura urbanistica
No full textOpenArcheo2: un sistema informativo per gestire e produrre conoscenza storico-archeologica
No full textOpenArcheo2: an information system to manage and produce historical-archaeological knowledge
With the first part of this paper we briefly explore some issues related to digitally recording and analyzing archaeological datasets, following our (neo)processualist approach. Throughout the text we also assess the actual state archaeological information systems and reflect about possible future directions of this kind of methodological research. The main part of our contribution deals with a description of OpenArcheo2, a wholly new archaeological information system developed at Siena University’s LIAAM (Laboratory of IT Applied to Medieval Archaeology). The result is a web application, with an in-progress development schedule, which subverts the usual perspective of solutions dedicated to the management/analysis of “raw” archaeological data, focusing entirely on interpreted informations. Representation of archaeological knowledge becomes therefore the primary objective of OpenArcheo2, as can be clearly seen from the conceptual model and the ontology presented in this paper
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
- …
