1,720,960 research outputs found
Transient flow and transport modelling of an historical CHC source in North-West Milano
Get PDFLegislative Decree 152/2006 requires Public Authorities to identify the subjects who are responsible for soil and groundwater contamination. In highly urbanized areas with a long industrial history and an elevated number of potential contaminant sources, as in N-W Milano Functional Urban Area (FUA), their identification can be difficult. Since the groundwater flow has showed consistent changes in the last 30 years as in Milan, the problem became even more complicate. The Public Authorities put in charge by the law, i.e., Regione Lombardia and Città Metropolitana Milanese, need new methodologies to assist them in finding the source locations and implementing remediation actions. The aim of this study is, coupling unsteady flow with fate and transport model of Chlorinated Hydrocarbons, to reconstruct the potential impact of a former chemical plant on public wells in the N-W area of Milano. The proposed methodology consists in (a) reconstruction of the piezometric trend over time (1980-2018) by means of a transient flow model (MODFLOW2005 + Parameter Estimation - PEST) and (b) simulation of transport as a function of the flow variations in time. The obtained results were compared with the previous ones obtained with a quasi-steady model (no changes in time-dependent parameters). Finally, a predictive scenario was performed to assess the potential evolution of tetrachloroethylene (PCE) in groundwater; on this frame, strategies to monitor and remediate the contamination were proposed
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
Zoo-technical application of Ground Source Heat Pumps: a pilot case study
Get PDFGround Source Heat Pumps are energy-efficient HVAC systems usually adopted in residential
and commercial buildings. However the control of the thermal environment is required not only
in spaces occupied by people, but also in intensive breeding farms, in order to maintain healthy
conditions and to increase productivity. In the Italian livestock breedings, heating is usually
provided by means of gas or Diesel burners directly installed in the stable. An important part of
the heating load is due to the large ventilation rates required for the livestock wellbeing.
Cooling is either absent or achieved by evaporative systems that also increase the humidity level
in the stables, thus requiring even larger ventilation rates. Therefore the applicability of
geothermal heating and cooling in breeding farms was analysed in a research project co-funded
by the Lombardy Region and the Italian Ministry of Research and Education. A pilot system for
heating, cooling and ventilation was designed and installed in a piglets room at the
Experimental and Didactic Zoo-technical Center of the University of Milan. Five Borehole Heat
Exchangers (BHEs), installed down to a depth of 60 meters into an alluvial aquifer, were
coupled with a Ground Source Heat Pump. The heat pump provides heating and cooling to an
Air Handling Unit, including a Heat Recovery system. A monitoring system was installed in
order to measure comfort conditions in the piglet room, operating conditions and energy
consumption of the HVAC system, together with the spreading of the thermal plume in the
ground. In this paper the results of a monitoring campaign carried out in a typical winter period
are presented and discussed. The overall energy efficiency of the system, expressed in terms of a
COP, results to be equal to 4.04. A comparison between the pilot HVAC system and a
traditional one is also carried out, showing that the proposed solution can provide over 40%
primary energy saving. Following, cost savings in energy bills for farmers are found, although
the ratio between electricity cost and fuel cost is a key parameter
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
Vita del Seminario Vescovile di Padova, prima metà del novecento
No full textPadre Marino fu Gioachino Formentin. 5° anno ordinazione sacerdotale.
Co-ordinati 1928: Formentin G. 1° a sinistra in alto, Romanato Evaristo, Pitton.
27.7.1933
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
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