K Nearest Neighbors (KNN) algorithm is a straight-forward yet powerful Machine Learning (ML) tool widely used in classification, clustering, and regression applications. In this work, KNN is applied, with three distan...
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Let Vn be a set of n points in the plane and let x∉ Vn. An x-loop is a continuous closed curve not containing any point of Vn. We say that two x-loops are non-homotopic if they cannot be transformed continuously into ...
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A crucial goal of quantum information is to find new ways to exploit the properties of quantum devices as resources. One of the prominent properties of quantum devices of particular interest is their negativity in qua...
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Lung cancer is one of the 'causes of death in developing countries', and it is on the rise as a result of the massive raise in smoking tobacco. Tumours, immune response dysfunction, and other problems caused b...
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Two samples of silicon pad sensors and two samples of GaAs sensors are studied in an electron beam with 5 GeV energy from the DESY-II test-beam facility. The sizes of the silicon and GaAs sensors are about 9×9 cm...
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We study a counting version of Cycle Double Cover Conjecture. We discuss why it is more interesting to count circuits (i.e., graphs isomorphic to Ck for some k) instead of cycles (graphs with all degrees even). We giv...
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Let V= { v1, , vn} be a set of n points in the plane and let x∈ V. An x-loop is a continuous closed curve not containing any point of V, except of passing exactly once through the point x. We say that two x-loops are...
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The experimental observation of the Dirac fermion states in β12-borophene sheets and the discovery of their novel topological properties have made them a promising candidate for spintronic applications. Here, by comb...
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The experimental observation of the Dirac fermion states in β12-borophene sheets and the discovery of their novel topological properties have made them a promising candidate for spintronic applications. Here, by combining the nonequilibrium Green's function (NEGF) and tight-binding (TB) approximations, we study the charge and spin transport properties through a β12-borophene nanoribbon (BNR) with different edge shapes. We show that for BNR exposed to a nonlocal exchange magnetic field, the spin filtering occurs so that the spin direction of transmitted electrons could be controlled by adjusting the energy of incoming electrons with the help of an external backgate voltage. It is found that an armchair BNR (ABNR) in the simultaneous presence of a transverse electric field and a nonlocal exchange field acquires half-metallic properties. The influence of local exchange fields is evaluated by exposing the edges of BNRs to ferromagnetic strips with parallel and antiparallel configurations. Our findings show that the edge manipulations in BNRs lead to the emergence of giant magnetoresistance and a perfect spin filter. Finally, we study the effects of edge vacancies and Anderson disorder on the spin-dependent conductance of an ABNR and find that the perfect spin polarization is not destroyed in the presence of Anderson disorder and various single vacancies. Our results reveal the outstanding spin transport properties of ABNRs for future spintronic devices.
The quadripartitioned neutrosophic set is the partition of indeterminacy function of the neutrosophic set into contradiction part and ignorance part. In this work, the concept of quadripartitioned neutrosophic graph s...
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Betweenness centrality is a centrality measure based on the overall amount of shortest paths passing through a given vertex. A graph is betweenness-uniform if all its vertices have the same betweenness centrality. We ...
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