1,721,014 research outputs found
Wind farm noises: mechanisms and evidence for their dependency on wind direction
No full textAbstract not availableNima Sedaghatizadeh, Maziar Arjomandi, Benjamin Cazzolato, Richard Kels
Self-noise and directivity of simple airfoils during stall: An experimental comparison
No full textAbstract not availableAlex Laratro, Maziar Arjomandi, Benjamin Cazzolato, Richard Kels
Efficiency improvement of submerged point absorbing wave energy converters by utilizing motion-coupling
No full textFantai Meng, Benjamin Cazzolato, Boyin Ding, Maziar Arjomand
Model-based drift correction of a digital charge amplifier
No full textMohsen Bazghaleh, Steven Grainger, Benjamin Cazzolato and Tien-Fu Luhttps://sites.google.com/site/2011icmt/Home/progra
Study of fully submerged point absorber wave energy converter - modelling, simulation and scaled experiment
No full textBoyin Ding, Leandro Souza Pinheiro da Silva, Nataliia Sergiienko, Fantai Meng, Jonathan David Piper, Luke Bennetts, Markus Wagner, Benjamin Cazzolato, Maziar Arjomand
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
Modal analysis of a submerged spherical point absorber with asymmetric mass distribution
No full textOf all the wave energy converter (WEC) categories, the single-tether point absorber (PA) is one of the most widely used in the ocean renewable energy industry. In most published research, only the heave motion of the buoy is considered in the motion equation for the analysis. This is because the heave motion of the buoy strongly couples to the power take-off device (PTO), whereas the surge and pitch motions barely couple to the PTO. As a result, only the power arising from heave motion of the buoy can be efficiently absorbed when a single-tether PTO is used, leading to deficiency of the design in absorbing the power arising from its surge and pitch motion. In this paper, the deficiencies of single-tether PAs are addressed by simply shifting the center of gravity of the buoy away from its geometric centre. A spherical buoy with asymmetric mass is used in this paper for its simplicity. The asymmetric mass distribution of the buoy causes motion coupling across surge, heave and pitch motions, which enables strong coupling between the buoy's surge motion and the PTO movement. The operation principle and power generation of the spherical point absorber with asymmetric mass distribution (SPAMD) are investigated via a modal analysis conducted on a validated frequency-domain model. The results show that the SPAMD can be up to 3 times more efficient than the generic PAs when subjected to regular waves in the frequency range from 0.34 rad/sec to 1.4 rad/sec.Fantai Meng, Boyin Ding, Benjamin Cazzolato, Maziar Arjomand
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
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