1,720,966 research outputs found
Wind energy potential in Liguria region
No full textIn this work, the aim is to assess the current wind energy potential in the Liguria region, Italy, by the
application of well assessed methodologies that are recalled within the paper. Data for a monitored
period up to six and half years from 25 stations distributed over the four provinces of Liguria (i.e., La
Spezia, Genoa, Savona and Imperia) have been analyzed.
From the data obtained on the 25 stations, only 4 of them seem to be eligible for energy production,
but, due to other constraints such as environmental protected areas, only one of them seems the only one
where the wind potential – which has been quite stable in the years – can be effectively exploited.
However, as usual in these cases, also due to the complex orography of Liguria region, a monitoring
campaign on the field should be additionally performed on the site
MONTHLY AND SEASONAL ASSESSMENT OF WIND ENERGY CHARACTERISTICS AT FOUR MONITORED LOCATIONS IN LIGURIA REGION (ITALY)
No full textThe aim of this paper is to investigate the monthly and seasonal variation of the wind characteristics in
term of wind energy potential using the wind speed data collected between 2002 and 2008 for four
meteorological stations in Liguria region, in Northwest of Italy, namely Capo Vado, Casoni, Fontana
Fresca and Monte Settepani. The results show that Capo Vado is the best site with a monthlymean wind
speed between 2.80 and 9.98 m/s at a height of 10 m and a monthly wind power density between 90.71
and 1177.97 W/m2, while the highest energy produced may be reached in December with a value of
3800 MWh. This study may provide information for developing wind energy sites and planning
economical wind turbines capacity for the electricity production in Liguria region, as well as an example
of how, deepening the analysis atmonthly and seasonal scale, the characteristics of the sites might fall in
quite different classes of power density
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
A decision support system for the optimal exploitation of wind energy on regional scale
No full textWind is a promising sustainable energy resource that can help in reducing the dependence on fossil
fuels. Models and tools can be effectively used to assess the resource availability, the possible exploitation, and the environmental impact. The aim of this work is to propose an Environmental Decision
Support System (EDSS) for the sustainable design of wind power plants both in terms of the site selection
over a regional territory and of the optimal technology to be installed. Specifically, the proposed EDSS is
suited to territories with a complex orography (such as several regions of the Mediterranean coasts), and
for the installation of plants in the class of power between 500 kW and 1000 kW. The different EDSS
modules are applied to a specific case study, supporting the decision maker on the exploitation of wind
power plants in the Savona District, Liguria Region, Italy
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
- …
