1,720,975 research outputs found
Mukhtiar Ali Unar's Quick Files
No full textThe Quick Files feature was discontinued and it’s files were migrated into this Project on March 11, 2022. The file URL’s will still resolve properly, and the Quick Files logs are available in the Project’s Recent Activity
Image Quality Assessment for Performance Evaluation of Focus Measure Operators
No full textThis paper presents the performance evaluation of eight focus measure operators namely Image CURV (Curvature), GRAE (Gradient Energy), HISE (Histogram Entropy), LAPM (Modified Laplacian), LAPV (Variance of Laplacian), LAPD (Diagonal Laplacian), LAP3 (Laplacian in 3D Window) and WAVS (Sum of Wavelet Coefficients). Statistical matrics such as MSE (Mean Squared Error), PNSR (Peak Signal to Noise Ratio), SC (Structural Content), NCC (Normalized Cross Correlation), MD (Maximum Difference) and NAE (Normalized Absolute Error) are used to evaluate stated focus measures in this research. . FR (Full Reference) method of the image quality assessment is utilized in this paper. Results indicate that LAPD method is comparatively better than other seven focus operators at typical imaging condition
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
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
pH Prediction by Artificial Neural Networks for the Drinking Water of the Distribution System of Hyderabad City
No full textABSTRAC
Harmonics Mitigation of Industrial Power System Using Passive Filters
No full textWith the development of modern industrial technology a large number of non-linear loads are used in
power system, which causes harmonic distortion in the power system. At the same time the power quality
and safe operation becomes inferior. Therefore mitigation of harmonics is very necessary under the
situation. This paper presents the design of two passive filters to reduce the current harmonics produced
by nonlinear loads in industrial power system. Matlab /simlink software has been used for the simulation
purpose. The results have been obtained with and without installation of filters and then it is observed that
after installation of filters harmonics of the current are reduced and power factor is improved
Manufacturing of Aluminum Composite Material Using Stir Casting Process
No full textManufacturing of aluminum alloy based casting composite materials via stir casting is
one of the prominent and economical route for development and processing of metal
matrix composites materials. Properties of these materials depend upon many
processing parameters and selection of matrix and reinforcements. Literature reveals
that most of the researchers are using 2, 6 and 7xxx aluminum matrix reinforced with
SiC particles for high strength properties whereas, insufficient information is available
on reinforcement of \"Al2O3\" particles in 7xxx aluminum matrix. The 7xxx series
aluminum matrix usually contains Cu-Zn-Mg. Therefore, the present research was
conducted to investigate the effect of elemental metal such as Cu-Zn-Mg in aluminum
matrix on mechanical properties of stir casting of aluminum composite materials
reinforced with alpha \"Al2O3\" particles using simple foundry melting alloying and
casting route.
The age hardening treatments were also applied to study the aging response of the
aluminum matrix on strength, ductility and hardness. The experimental results indicate
that aluminum matrix cast composite can be manufactured via conventional foundry
method giving very good responses to the strength and ductility up to 10% \"Al2O3\"
particles reinforced in aluminum matrix
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