1,721,037 research outputs found
Multivariate regression analysis for rapid fatigue prediction in airport rigid pavements
No full textThe Airport Pavement Management System (APMS) of extensive air - side infrastructures demands a continuous measurement survey, up-to-date monitoring analysis, proactive rehabilitation and maintenance strategy. Reactive management protocols and current lack of integration in design, survey, and monitoring procedures undermine the effectiveness of any long-term decision making processes. In particular, rigid pavement are currently designed with numerical models and subsequently surveyed with NDT techniques as plate elementary units. Due to the high computational times and numerical resources required, FEA analyses are typically averaged on representative sample units, which inhibits the reliability of the assessment procedure. On the other hand, the use of theoretical closed-form solutions simplifies the physical model allowing for rapid evaluation, at the expense of overall accuracy. In this study, numerical solutions are taken as a reference for setting up a multivariate regressive analysis of rapid theoretical models, with varying pavement and traffic conditions. Hereby, a mechanistic-empirical fatigue condition assessment is directly established and validated to automatically infer Cumulative Damage Factor (CDF) calculation from previous tensile stress results. Relevant results demonstrate a good viability of the proposed method against current stress calculation and damage prediction models, thereby showing potential to contribute to the existing APMS frameworks
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
Cartoline da Polignano: 'Io che amo solo te' e 'La cena di Natale di Io che amo solo te' (dai romanzi di Luca Bianchini ai film)
No full textIl contributo analizza linguisticamente i romanzi dello scrittore torinese Luca Bianchini "Io che amo solo te" e "La cena di Natale di Io che amo solo te", entrambi ambientati a Polignano a Mare (in provincia di Bari), mettendoli a confronto con il parlato degli attori nelle rispettive versioni cinematografiche sceneggiate dallo stesso autore in collaborazione con il regista Marco Ponti. Dalla sinossi risulta una generale continuità (salvo rari casi) tra la resa del parlato marcato localisticamente ricreato nei dialoghi e nelle parti narrative dei romanzi e la sceneggiatura dei film. In entrambi i casi la verisimiglianza linguistica è certamente di qualità: se nei libri stupisce da parte dello scrittore la competenza di varietà locali a lui estranee, nelle versioni cinematografiche colpisce la sua volontà di selezionare attori di area barese (che presentano una varietà di italiano locale in linea con quella parlata nel paesino pugliese in cui si svolgono le trame) o, se non autoctoni, in grado di riprodurre un parlato marcato localmente molto verisimile
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
Signal processing of GPR data for road surveys
Full text linkEffective quality assurance and quality control inspections of new roads as well as assessment of remaining service-life of existing assets is taking priority nowadays. Within this context, use of ground penetrating radar (GPR) is well-established in the field, although standards for a correct management of datasets collected on roads are still missing. This paper reports a signal processing method for data acquired on flexible pavements using GPR. To demonstrate the viability of the method, a dataset collected on a real-life flexible pavement was used for processing purposes.
An overview of the use of non-destructive testing (NDT) methods in the field, including GPR, is first given. A multi-stage method is then presented including: (i) raw signal correction; (ii) removal of lower frequency harmonics; (iii) removal of antenna ringing; (iv) signal gain; and (v) band-pass filtering. Use of special processing steps such as vertical resolution enhancement, migration and time-to-depth conversion are finally discussed. Key considerations about the effects of each step are given by way of comparison between processed and unprocessed radargrams. Results have proven the viability of the proposed method and provided recommendations on use of specific processing stages depending on survey requirements and quality of the raw dataset
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
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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