1,720,961 research outputs found
Proposta di una procedura schematizzata per semplificare la redazione dei Piani Regolatori di Illuminazione Comunale (PRIC)
No full textLa pianificazione, realizzazione e gestione dell’illuminazione delle città è aspetto particolarmente complesso: non è raro nella realtà italiana incontrare impianti di illuminazione disomogenei, con elementi di discontinuità all’interno del contesto notturno. In termini legislativi, tali difficoltà sono state affrontate attraverso la richiesta di un Piano Regolatore dell’Illuminazione Comunale (PRIC). Ciononostante, la scarsa attenzione da parte delle amministrazioni verso le questioni legate al tema della luce urbana, e la diversità degli approcci dei professionisti che s’interessano a queste tematiche (non esiste un pensiero comune, ma solo molte figure professionali in gioco e poca collaborazione) rendono ancora attuale questo problema, a cui nel tempo se ne sono aggiunti altri, tra cui fondamentale risulta essere l’inconciliabilità tra la necessità di redazione di un P.R.I.C. (laddove esso sia già previsto da legislazione) e la pratica impossibilità da parte dei piccoli e medi comuni di rendersi operativi in tempi rapidi, a causa della scarsa disponibilità di personale tecnico e della contestuale compresenza di emergenze che rendono la questione inevitabilmente secondaria.
Il presente report ha dunque lo scopo di illustrare non tanto come redigere un PRIC (realtà difficile in un piccolo Comune), ma come seguire da vicino l’operato di un tecnico esterno, che inevitabilmente si troverà a chiedere e a restituire documentazione al Comune interessato. L’intento di questo documento è quindi quello di presentare una descrizione sintetica ed esplicativa (attraverso uno schema tipo flow-chart) dei passi da eseguire, degli attori coinvolti, della documentazione necessaria, per ogni singola fase in cui si può considerare suddivisa la redazione di un PRIC
A territorial based strategy for the distribution of sensor networks in smart cities
No full textNowadays land governance has to keep up with sudden environmental and social transformations of cities. Therefore it is necessary to improve the exchange of real-time information among different stakeholders. One of the solutions is to acquire data not only by Remote Sensing, but also by sensor networks distributed on the territory. In this way information are developed with multiple connections and a smarter management of cities can be achieved. However there are not strategies for the distribution of the sensors yet and it often takes to an excess of not interrelated data. Therefore it is important to design the networks according to the features of the territory in which they are distributed. This aim can be achieved with the study of infrastructural, cultural and functional aspects of the cities. The goal of this paper is to define a method to plan an optimized distribution of sensors in the city based on the analysis of characteristics and relations among urban zones
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
An integrated approach for the evaluation of energy performances and environmental impact of buildings.
No full textFollowing the goals established by Horizon2020 EU is working on strategies in order to increase the energy efficiency of buildings. A useful solution is to identify the energy performance of buildings through the energy certification as it provides information for the comparison of buildings with different architectural typology, shape, design
technology and geographical location. Anyway this tool does not assess the real energy consumption of the building and does not take into account its impact on the environment.
In this work two different types of analysis were carried out: one based only on the energy efficiency (which evaluates mainly the winter season) and the other one based on the environmental impact (which considers also summer consumption and disposal of building materials). Those studies were applied on a standard building with the purpose to obtain
cross related information. In order to have a greater applicability of results the same project was set in three different Italian locations, which are characterized by different climatesand the building was considered composed by fixed and variable parameters. After the evaluation of the results, interventions on variable parameters have been identified in order to improve the energy behavior of the building with an acceptable impact on the environment. The aim of this paper is to propose a methodology which integrates the energy certification of buildings with the environmental impact, leading to a more conscious choice of retrofit interventions and reaching a compromise between energy performances and environment al impact
Computational fluid dynamic modelling of thermal periodic stabilized regime in passive buildings
Full text linkThe influence of the architectural envelope on indoor microclimate conditions has been widely studied in recent years because of the optimization of passive strategies and thermal performances of buildings. In this study a transient periodic temperature has been imposed on a side wall of an enclosure: the variation of the temperature in all the points of the body follows the same periodic law of the imposed thermal forcing after a certain time. This condition is called periodic stabilized regime. This phenomenon happens especially during the summer season when the daily temperature has very different values between day and night. Despite that, nowadays building microclimatic conditions are analyzed imposing a fixed temperature on the indoor environment. There are not analytical and numerical solutions describing the case of a temperature free to evolve under an outdoor thermal forcing. This situation finds a practical example in passive buildings where there are no HVAC systems or equipment. Periodic stabilized regime has been analyzed imposing different material properties on the solid body of the enclosure. Conductive and convective phenomena have been numerically investigated through Computational Fluid Dynamics (CFD) and analytically validated using a function that reproduces the daily variation of the outdoor temperature. The aim of this paper is to supply the basis to build a predictive tool able to simulate the indoor thermal profile of an environment subjected to outdoor thermal conditions also in the case where the indoor temperature is free to evolve
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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