1,720,955 research outputs found
PROTECTION ELECTRONIC DEVICE FOR THE PREVENTION OF DAMAGES INDUCED BY PLASMA-ASSISTED PROCESSES, AND MANUFACTURING METHOD THEREOF
No full textElectronic device (100), comprising a circuit module (6) and
a protection module (50; 51). The circuit module (6)
comprises a P-N junction (102) between a reference terminal
5 (GND) and an electrical node (104), and a plurality of metal
connection lines (20) coupled to the electrical node (104)
and adapted to be charged due to antenna effect. The
protection module (50) comprises an HV transistor (112) and
a first capacitor (108). The capacitor (108) is connected
10 between the electrical node (104) and the HV transistor (112)
and is configured to turn on the HV transistor (112) when
the electrical node (104) charges positively due to the
antenna effect. The circuit module (6) is thus maintained at
a potential that does not damage the electronic device (100)
Magnetization reversal in elliptical Permalloy nanodots
No full textUsing the Vectorial Magneto-Optic Kerr Effect (V-MOKE) and numerical simulations, we have investigated the magnetization reversal process in arrays of 15-nm-thick Permalloy nanometer-scale dots, having elliptical shape and eccentricity, varying from 1 to 2.5. V-MOKE hysteresis loops revealed that the magnetization reversal is incoherent for elements with eccentricity of 1 and 1.5, while it becomes an almost perfect coherent magnetization rotation for elements with eccentricity equal to 2 and 2.5. In the latter case, the V-MOKE loops agree well with those predicted by the Stoner-Wohlfarth model for particles with uniaxial magnetic anisotropy. We were able to reproduce the V-MOKE results with micromagnetic simulations, gaining a deeper insight into the magnetic configurations that develop during the reversal process
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
Interplay between magnetocrystalline and configurational anisotropies in Fe(001) square nanostructures
No full textWe fabricated a set of arrays of single-crystal Fe micron and submicron square elements on MgO using a focused ion beam apparatus. The squares have different size (1-mu m and 500-nm side) and orientation with respect to the crystalline axes. The three patterns were magnetically characterized by means of magneto-optical Kerr effect microscopy/magnetometry, and the symmetry and strength of their magnetic anisotropy was determined through transverse susceptibility measurements performed with the modulated field magneto-optical anisometry technique. We observed that the overall anisotropy of the systems is determined by the interplay between the intrinsic magnetocrystalline anisotropy of the material and the anisotropic energy of the magnetic configurations determined by the lateral confinement (the so called configurational anisotropy). Depending on the relative orientation of the patterns with respect to the intrinsic magnetocrystalline anisotropy axes, the interplay can give rise to enhancement or reduction of the configurational contributions compared to the case of identical patterns made of isotropic material. Our results demonstrate that the strength of the latter contribution is comparable to the first one and can be used to create nanoelements with peculiar anisotropy symmetries
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
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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