1,720,959 research outputs found
Geothermal potential of the Tertiary Piedmont Basin: structural and lithological controls
No full textGeothermal energy, as a renewable and green source for energy production and heating/cooling activities,
has a great development potential in many European countries. The dynamic tectonic history of Italy provides
a favorable geologic framework for geothermal resources to be formed. Besides some volcanic regions,
characterized by significantly hot manifestations, there are many low enthalpy geothermal fields. Only a few
of them have been addressed and are mainly exploited directly as heat. Within this context, less evident and
more complex systems suitable for developing new geothermal projects, become key areas for the energetic
transition. Nevertheless, their exploration and future exploitation can only occur through the implementation
of multidisciplinary methodologies, leading to a detailed characterization of the reservoirs.
Our main goal is to determine the geothermal potential of the Tertiary Piedmont Basin (TPB, north-western
Italy) by revealing the thermal structure of the region, as well as the heating mechanisms and heat flow controls
in the basin. The TPB records the dynamic evolution of the Alps-Apennines junction. It accommodates on
average 3 km of sedimentary units (Eocene to Pliocene in age), which show marked lateral facies variations
and tectonically-controlled depositional architectures (Di Giulio et al., 2024 and reference therein). These
units and the underlying Alpine basement experienced multiple pulses of deformation, developing kilometric
structures over a stretched lithosphere, which likely had a key role in increasing the geothermal gradient of the
area (Amadori et al., 2023). Several hot springs up to 70°C (e.g., Acqui Terme) and moderately high surface
heat flux, between 62 and 84 mW m-2 (Pasquale et al., 2014) have been observed in the TPB, evidencing its
potential as a new geothermal resource. The location of the hot springs, north to the metamorphic basement
outcrops, identify the last one as the recharge area of the meteoric water. Furthermore, the presence of a thin
crust (30-35 km), revealed by recent seismic tomography studies (e.g., Nouibat et al., 2023), enhances the role
of the deep structures in the formation of the geothermal reservoir.
In this study, we display the results of the first field campaign, carried out in the TPB, and the analyses
of the available geological/geophysical data. These include the recognition of key lateral and vertical facies
variations of the stratigraphic units and of first order structures present in the basin. These outcomes, together
with the measurements of petrophysical parameters and fluid inclusion micro-thermometry from the sampled
rocks, will be the main input for the implementation of the initial geological model. This workflow based on
stratigraphic and structural analyses, as well as diagenesis, will be crucial for the evaluation of the geothermal
potential of the TPB and could be applied on similar basins
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Geothermal potential of the Tertiary Piedmont Basin: structural and lithological controls
No full textGeothermal energy, as a renewable and green source for energy production and heating/cooling activities, has a great development potential in many European countries. The dynamic tectonic history of Italy provides a favorable geologic framework for geothermal resources to be formed. Besides some volcanic regions, characterized by significantly hot manifestations, there are many low enthalpy geothermal fields. Only a few
of them have been addressed and are mainly exploited directly as heat. Within this context, less evident and more complex systems suitable for developing new geothermal projects, become key areas for the energetic transition. Nevertheless, their exploration and future exploitation can only occur through the implementation of multidisciplinary methodologies, leading to a detailed characterization of the reservoirs. Our main goal is to determine the geothermal potential of the Tertiary Piedmont Basin (TPB, north-western Italy) by revealing the thermal structure of the region, as well as the heating mechanisms and heat flow controls in the basin. The TPB records the dynamic evolution of the Alps-Apennines junction. It accommodates on average 3 km of sedimentary units (Eocene to Pliocene in age), which show marked lateral facies variations and tectonically-controlled depositional architectures (Di Giulio et al., 2024 and reference therein). These units and the underlying Alpine basement experienced multiple pulses of deformation, developing kilometric
structures over a stretched lithosphere, which likely had a key role in increasing the geothermal gradient of the area (Amadori et al., 2023). Several hot springs up to 70°C (e.g., Acqui Terme) and moderately high surface heat flux, between 62 and 84 mW m-2 (Pasquale et al., 2014) have been observed in the TPB, evidencing its potential as a new geothermal resource. The location of the hot springs, north to the metamorphic basement outcrops, identify the last one as the recharge area of the meteoric water. Furthermore, the presence of a thin crust (30-35 km), revealed by recent seismic tomography studies (e.g., Nouibat et al., 2023), enhances the role of the deep structures in the formation of the geothermal reservoir.In this study, we display the results of the first field campaign, carried out in the TPB, and the analyses of the available geological/geophysical data. These include the recognition of key lateral and vertical facies variations of the stratigraphic units and of first order structures present in the basin. These outcomes, together with the measurements of petrophysical parameters and fluid inclusion micro-thermometry from the sampled rocks, will be the main input for the implementation of the initial geological model. This workflow based on stratigraphic and structural analyses, as well as diagenesis, will be crucial for the evaluation of the geothermal potential of the TPB and could be applied on similar basins
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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