1,721,085 research outputs found
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
Contratti a distanza - commento artt. 50-61 codice consumo
No full textLo studio ha ad oggetto le modalità di conclusione del contratto con specifico riferimento ai contratti a distanza
Assessment of LNG Regasification Systems with Cogeneration
No full textNatural gas is usually transferred to consumers through pipelines, which may cover distances of thousands of kilometers. In some cases, however, when the path of the pipelines crosses seas or countries where the politic situation does not ensure a continuous and reliable flow, other means of transportation are preferred. In these cases, the natural gas is liquefied and transported in tankers, which load the tanks at liquefaction plants and discharge them at regasification plants. This gives a considerable chance to differentiate supply sources and allows gas imports from producing countries that are otherwise inaccessible via pipeline.
The aim of this paper is the study of systems, which carry out liquefied natural gas (LNG) vaporization using cogenerative solutions. The following configurations were studied in particular:
• Gas-steam combined cycles;
• Closed gas-gas combined cycles using three different working fluids.
Two typical plant sizes and two gas pressure sendout levels (7.3 MPa for long distance pipeline networks and 2.5 MPa for terminals linked to power production plants with combined cycles) have been analyzed. The suggested solutions have been optimized, and performance calculated. The discussion is completed by a simplified economic analysis
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
Assessment and reduction of the seismic vulnerability of a stone masonry vault
Full text linkA numerical approach is presented to assess the seismic vulnerability of barrel masonry vaults and evaluate the effectiveness of a traditional retrofitting intervention consisting in the reinforcement of the extrados. A linear elastic no–tension model is adopted to cope with the negligible strength in tension of ancient brick and stone masonry and perform a two–dimensional finite element analysis of arch–like sections. Instead of implementing conventional load history analysis or limit load analysis, the minimization of the relevant strain energy function is implemented to solve the non–linear equilibrium under the effect of different load scenarios.
A segmental barrel vault made of stone masonry is investigated in an ancient building under static and seismic loads. The collapse load of the structural element is computed before and after the intervention and the reduction achieved in terms of seismic vulnerability is evaluated as prescribed by technical codes
Foro competente e sanzione - commento artt. 62-63 codice consumo
No full textDisciplina del foro del consumatori. Questioni e cas
I contratti negoziati fuori dei locali commerciali - commento artt. 45-49 codice consumo
No full text1. Ratio della collocazione della disciplina dei «Contratti fuori dei locali commerciali» allinterno del Codice del Consumo. - 2. La direttiva 85/577 e la sua attuazione in Italia. Le limitazioni sul piano soggettivo. Dalla definizione di operatore commerciale a quella di professionista. - 3. Le limitazioni sul piano oggettivo: dalla nozione di locali commerciali al problema delle proposte vincolanti o non vincolanti. - 4. Il coordinamento dei contratti di cui al comma 1, lettera d, con la disciplina dei «Contratti a distanza». - 5. Ulteriore delimitazione del campo di applicazione della legge. Le modifiche riguardanti le categorie di contratti esclusi. - 6. Obbligo di informazione e diritto di recesso. - 7. Contenuto, tempo e modo dellinformazione. La nota informativa. - 8. Il pagamento con effetti cambiari. - 9. I casi di esclusione del recesso. - 10. Il coordinamento con la disciplina generale del commercio
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