1,721,029 research outputs found
Fabrication of high-aspect ratio GaN nanostructures for advanced photonic devices
Full text linkThis dataset is the result of an investigation into the impact of the temperature and pressure on the fabrication of Gallium Nitride nanostructures. The dataset contains data acquired from etched nanorods and nanopores.The data was acquired using a Hitachi S-4300 scanning electron microscope (SEM). The secondary electron (SE) images were produced using the manufacturer-supplied software. Figure numbers in the data file descriptions refer to the Microelectronic Engineering article by Le Boulbar et al. (2016) referenced in the related publications section.The height and diameter of the nanostructure were extracted from the SE image. Measurements were taken on more than five nanostructures to obtain representative and accurate dimensions.An Inductively Coupled Plasma (ICP) (Oxford Instrument 100 Cobra) were used for the dry-etching 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
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
Data set for "Creation of regular arrays of faceted AlN nanostructures via a combined top-down, bottom-up approach"
No full textThe original data for parts of all figures in the paper, "Creation of regular arrays of faceted AlN nanostructures via a combined top-down, bottom-up approach", both in the main text and supplementary material, is provided here. Figures 1-5, 7 (all) are all .bmp files corresponding to raw scanning electron microscopy (SEM) images. Figure 6 (all) are JPEG files and correspond to growth mechanism schematics. Figure 8.eps and Figure 8 Raw Data.csv files are the plot presented in the main text, and the raw data file corresponding to this plot respectively. Figures 9-11 Supplementary Material are all atomic force microscopy (AFM) figures before any calibration adjustments. Figure 12 Supplementary Information.eps and Figure 12 Supplementary Information Raw Data.csv are the plot and the corresponding raw data file respectively presented in the supplementary material.AlN nanostructures were fabricated and then MOVPE regrowth experiments were performed upon different regrown nanostructures. The data taken in the main text was in the form of SEM images. Other than figure 5, these were taken with a Hitachi Field-Emission S-4300 SE using a 5 kV electron beam using secondary electron detection. Figure 5 was taken with a FEI Quanta 250 variable pressure SEM, again detecting the secondary electron signal. The AFM images in the supplementary information were taken using a Bruker multimode IIIA AFM, utilising high resolution, high aspect ratio AFM tips.Some of the SEM images were modified to have different contrast and brightness levels compared to the original images taken. Also, the images were cropped to remove the bottom and a scale bar inserted in to make them more aesthetically pleasing. The AFM images in the supplementary material were calibrated to be scaled properly as the raw data was distorted to some extent.All SEM images (Figure 1-4, 7) apart from Figure 5 were taken with a Hitachi Field-Emission S-4300 SE using a 5 kV electron beam using secondary electron detection. Figure 5 was taken with a FEI Quanta 250 variable pressure SEM, detecting the secondary electron signal. Blender 2.83 was used to produce the 3-dimensional growth mechanism schematics in Figure 6. ImageJ 1.52a was used to extract quantitative data from the SEM images - this was presented in the two plots presented in the main text and supplementary information respectively (Figure 8 and Figure 12 supplementary information). The actual plotting of the data itself was performed using the Origin 8.5.1 software package. The AFM images presented in the supplementary material (Figures 9-11 supplementary material) were calibrated and analysed using the Gwyddion 2.55 software package (http://gwyddion.net/).The data is organised in order according to each of the Figures presented in the associated publication and supplementary information
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
