324,887 research outputs found

    Erratum: Cloaking using anisotropic multilayer circular cylinder (AIP Advances (2020) 10 (095312) DOI: 10.1063/5.0012769)

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    Co-author Mehwish Nisar should have had an additional affiliation noted in the byline of our original manuscript.1 The correct affiliations for this manuscript are as listed above

    Ejection fraction estimation using Polynomial Regression

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    Polynomial regression using proposed feature functions; SDCR and SDCRsimp to estimate Left ventricular ejection fraction from echocardiogram videos. The echocardiogram videos comprise of apical 4-chamber view

    sj-pdf-1-lrt-10.1177_1477153520981572 – Supplemental Material for View preference in urban environments

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    Supplemental Material, sj-pdf-1-lrt-10.1177_1477153520981572 for View preference in urban environments by A Batool, P Rutherford, P McGraw, T Ledgeway and S Altomonte in Lighting Research & Technology</p

    sj-pdf-1-lrt-10.1177_14771535211055703 – Supplemental Material for Gaze correlates of view preference: Comparing natural and urban scenes

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    Supplemental Material, sj-pdf-1-lrt-10.1177_14771535211055703 for Gaze correlates of view preference: Comparing natural and urban scenes by A Batool, P Rutherford, P McGraw, T Ledgeway and S Altomonte in Lighting Research & Technology</p

    Cloaking using anisotropic multilayer circular cylinder

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    In this article, we study a homogenization model for cloaking applications. In the given model, we consider an isotropic inner layer, which iscoated with a multilayer anisotropic circular cylinder. We describe the electrostatic response of a polarly radially anisotropic (PRA) multilayercircular cylinder. It consists of different components of permittivity in radial and tangential directions for each layer. We have shown themathematical derivation of the polarizability and effective permittivity of a PRA multilayer circular cylinder. Moreover, we demonstrate thecloaking behavior using a PRA multilayer circular cylinder. Meanwhile, we test our formation with advanced computational approaches.During our numerical test, we have investigated the numerical results of the polarizability of a PRA multilayer circular cylinder. We employan inner cloak surrounded by a multilayer anisotropic circular cylinder. However, for an ideal cloak, the contrast between the permittivityparameters approaches infinity

    Introduction to radar scattering application in remote sensing and diagnostics: Review

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    The manuscript reviews the current literature on scattering applications of RADAR (Radio Detecting And Ranging) in remote sensing and diagnostics. This paper gives prime features for a variety of RADAR applications ranging from forest and climate monitoring to weather forecast, sea status, planetary information, and mapping of natural disasters such as the ones caused by earthquakes. Both the fundamental parameters involved in scattering mechanisms of RADAR applications and the factors affecting RADAR performances are also discusse

    Diffusive author(s), cohesive author: Analysis of S/N (1994)

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    This study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)

    Cloaking using the anisotropic multilayer sphere

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    We studied a Spherically Radially Anisotropic (SRA) multilayer sphere with an arbitrary number of layers. Within each layer permittivity components are different from each other in radial and tangential directions. Under the quasi-static approximation, we developed a more generalized mathematical model that can be used to calculate polarizability of the SRA multilayer sphere with any arbitrary number of layers. Moreover, the functionality of the SRA multilayer sphere as a cloak has been investigated. It has been shown that by choosing a suitable contrast between components of the permittivity, the SRA multilayer sphere can achieve threshold required for invisibility cloaking

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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
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