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277,476 research outcomes, page 1 of 27,748
  • publication . Preprint . 2019
    Open Access
    Authors:
    Lee, Jessica A.; Stolyar, Sergey; Marx, Christopher J.;
    Persistent Identifiers
    Publisher: bioRxiv
    Project: NSF | Dimensions: The roles of ... (1831838)

    AbstractMicroorganisms faces many barriers in the degradation of the polycyclic aromatic polymer lignin, one of which is an abundance of methoxy substituents. Demethoxylation of lignin-derived aromatic monomers in aerobic environments releases formaldehyde, a potent cel...

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  • publication . Article . 2019
    Open Access
    Authors:
    Guangji Yuan; Jianwei Zhang;
    Persistent Identifiers
    Publisher: Wiley
    Project: NSF | DIP: Connecting Idea Thre... (1441479)

    A learning community works with a collective knowledge space where members contribute and interact with one another's ideas to advance their community's knowledge. This study aims to explore designs of collective knowledge space to support cross‐community interaction. A...

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  • publication . Article . Preprint . 2017
    Open Access
    Authors:
    Blekherman, Grigoriy; Sinn, Rainer;
    Persistent Identifiers
    Publisher: Springer Science and Business Media LLC
    Project: NSF | FRG: Collaborative Resear... (0757212), NSF | CAREER: Nonnegative Polyn... (1352073)

    The minimum number of observations such that the maximum likelihood estimator in a Gaussian graphical model exists with probability one is called the maximum likelihood threshold of the underlying graph G. The natural algebraic relaxation is the generic completion rank ...

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  • publication . Article . 2015
    Open Access
    Authors:
    Alex Pronschinske; Philipp Pedevilla; Colin J. Murphy; Emily A. Lewis; Felicia R. Lucci; Garth G. Brown; George Pappas; Angelos Michaelides; E. Charles H. Sykes;
    Persistent Identifiers
    Publisher: Springer Science and Business Media LLC
    Project: EC | HETEROICE (616121), NSF | CAREER: Investigating and... (0844343)

    High-energy radiation has been used for decades; however, the role of low-energy electrons created during irradiation has only recently begun to be appreciated. Low-energy electrons are the most important component of radiation damage in biological environments because ...

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  • publication . Conference object . Preprint . Article . 2017
    Open Access English
    Authors:
    Michael B. Cohen; Jonathan A. Kelner; John Peebles; Richard Peng; Anup Rao; Aaron Sidford; Adrian Vladu;
    Persistent Identifiers
    Country: United States
    Project: NSF | AF: Large: Collaborative ... (1111109), NSF | Graduate Research Fellows... (1122374), NSF | AF: Medium: Taming Masssi... (1065125)

    In this paper we introduce a notion of spectral approximation for directed graphs. While there are many potential ways one might define approximation for directed graphs, most of them are too strong to allow sparse approximations in general. In contrast, we prove that f...

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  • publication . 2021
    Open Access
    Authors:
    Toshiyuki Gogami; Chunhui Chen; D. Kawama; Patrick Achenbach; A. Ahmidouch; I. Albayrak; Darko Androić; A. Asaturyan; R. Asaturyan; O. Ates; ...
    Persistent Identifiers
    Publisher: American Physical Society (APS)
    Country: Croatia
    Project: NSF | Investigations in Interme... (0758095)

    Missing mass spectroscopy with the (e, e K+) reaction was performed at Jefferson Laboratory’s Hall C for the neutron-rich hypernucleus 9 Li. The ground-state (g.s.) energy was obtained to be Bg.s. = 8.84 ± 0.17stat. ± 0.15sys. MeV by using shell-model calculations of a ...

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  • publication . Article . Preprint . 2017
    Open Access
    Authors:
    Xie, X.; Mohebujjaman, M.; Rebholz, L. G.; Iliescu, T.;
    Persistent Identifiers
    Publisher: Society for Industrial & Applied Mathematics (SIAM)
    Project: NSF | Collaborative Research: R... (1522656), NSF | Collaborative Research: V... (1522191)

    We propose a data-driven filtered reduced order model (DDF-ROM) framework for the numerical simulation of fluid flows. The novel DDF-ROM framework consists of two steps: (i) In the first step, we use explicit ROM spatial filtering of the nonlinear PDE to construct a fil...

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  • publication . Article . 1998
    Open Access English
    Authors:
    Subramaniam Pennathur; Can K. Sandalci; Çetin Kaya Koç; Stephen M. Goodnick;
    Persistent Identifiers
    Publisher: Hindawi Limited
    Project: NSF | Parallelization of Partic... (9312240)

    We have investigated three-dimensional (3D) effects in sub-micron GaAs MESFETs using a parallel Monte Carlo device simulator, PMC-3D [1]. The parallel algorithm couples a standard Monte Carlo particle simulator for the Boltzmann equation with a 3D Poisson solver using s...

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  • publication . Article . Preprint . 2013
    Open Access
    Authors:
    David I. Ketcheson; Matteo Parsani; Randall J. LeVeque;
    Persistent Identifiers
    Publisher: Society for Industrial & Applied Mathematics (SIAM)
    Project: NSF | Finite Volume Methods for... (0609661), NSF | Finite Volume Methods and... (0914942)

    We present a finite volume method that is applicable to hyperbolic PDEs including spatially varying and semilinear nonconservative systems. The spatial discretization, like that of the well-known Clawpack software, is based on solving Riemann problems and calculating fl...

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  • publication . Preprint . Conference object . 2011
    Open Access
    Authors:
    Qing Chen; Mustafa Cenk Gursoy;
    Persistent Identifiers
    Publisher: IEEE
    Project: NSF | CAREER: Energy-Efficient ... (0546384), NSF | CSR-DMSS,SM: Cooperative ... (0834753)

    In this paper, the average successful throughput, i.e., goodput, of a coded 3-node cooperative network is studied in a Rayleigh fading environment. It is assumed that a simple automatic repeat request (ARQ) technique is employed in the network so that erroneously receiv...

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277,476 research outcomes, page 1 of 27,748