نتایج جستجو برای: edge density
تعداد نتایج: 515490 فیلتر نتایج به سال:
With fusion device performance hinging on the edge pedestal pressure, it is imperative to experimentally understand the physical mechanism dictating the pedestal characteristics and to validate and improve pedestal predictive models. This Letter reports direct evidence of density and magnetic fluctuations showing the stiff onset of an edge instability leading to the saturation of the pedestal o...
Hyperspectral imaging can help blueberry growers by detecting berries of various maturity stages, so that they can deploy harvesting labors more efficiently. Spectral-spatial detection from hyperspectral images using selected bands is applied to the blueberry maturity stage detection. Nested clustering technique and morphological operations are used as two approaches to spatially process the hy...
Monitoring of depth of anesthesia is an ongoing problem in anesthesia. In this paper, using SEF, BDR, BTR parameters which is calculated by power spectral density. EEG data were obtained from 7 patients (ASA I, II) during general anesthesia with sevoflurane. The anesthetic depth evaluation index algorism was embodied to obtain a quantified index with the scale of 0~100. Then quantified index co...
A fundamental result of Mader from 1972 asserts that a graph of high average degree contains a highly connected subgraph with roughly the same average degree. We prove a lemma showing that one can strengthen Mader’s result by replacing the notion of high connectivity by the notion of vertex expansion. Another well known result in graph theory states that for every integer t there is a smallest ...
Acknowledments First and foremost I would like to thank my advisor Sukhada Fadnavis for stoking my interest in combinatorics and guiding me toward the theory of large graphs. You were invaluable in helping me develop a clearer vision for this beautiful topic. I'd also like to thank the other members of the Harvard community, both professors and students, that have aided me in my growth the past...
Multi-Edge Low-Density Parity-Check Coded Modulation Lei Zhang Master of Applied Science Graduate Department of Edward Rogers Sr. Department of Electrical and Computer Engineering University of Toronto 2011 A method for designing low-density parity-check (LDPC) codes for bandwidth-efficient high-order coded modulation is proposed. Code structure utilizes the multi-edge-type LDPC code ensemble t...
increasing patch edges in natural habitats, as a result of habitat fragmentation, are a major threat for wildlife populations, especially avifaunal communities. habitat edges provide different conditions compared to the core area which can directly or indirectly cause changes in species number, population and composition. this fact will demand a dissimilar management strategy. this study was co...
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
In this paper, we present a novel way to summarize the structure of large graphs, based on non-parametric estimation of edge density in directed multigraphs. Following coclustering approach, we use a clustering of the vertices, with a piecewise constant estimation of the density of the edges across the clusters, and address the problem of automatically and reliably inferring the number of clust...
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