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AbstractAbstract
No abstract available
Original Title
Half-range Gauss-Hermite and Gauss-Legendre quadratures
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Source
American Nuclear Society 1975 winter meeting; San Francisco, CA, USA; 16 Nov 1975; Published in Summary Form Only.
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Journal Article
Literature Type
Conference
Journal
Transactions of the American Nuclear Society; v. 22 p. 712-713
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AbstractAbstract
[en] Two measurement techniques are investigated to characterize photodetector linearity. A model for the two-tone and three-tone photodetector systems is developed to thoroughly investigate the influences of setup components on the measurement results. We demonstrate that small bias shifts from the quadrature point of the modulator will induce deviation into measurement results of the two-tone system, and the simulation results correspond well to experimental and calculation results. (authors)
Primary Subject
Source
7 figs., 8 refs.; http://dx.doi.org/10.1088/0256-307X/34/11/118502
Record Type
Journal Article
Journal
Chinese Physics Letters; ISSN 0256-307X;
; v. 34(11); [4 p.]

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AbstractAbstract
No abstract available
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Source
Available from http://dx.doi.org/10.1070/RM1998v053n02ABEH000034; Abstract only; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Khaniki, Hossein Bakhshi, E-mail: h_bakhshi@mecheng.iust.ac.ir2018
AbstractAbstract
[en] Highlights: • Rotating nanobeams are analyzed using Eringen's Two-Phase Local/Nonlocal Model. • Paradox seen for first natural frequency term is solved. • Modified differential quadrature method is used to solve two-phase local/nonlocal model. • A comprehensive parametric study is presented. Due to the inability of differential form of nonlocal elastic theory in modelling cantilever beams and inaccurate results for some type of boundaries, in this study, a reliable investigation on transverse vibrational behavior of rotating cantilever size-dependent beams is presented. Governing higher order equations are written in the framework of Eringen's two-phase local/nonlocal model and solved using a modified generalized differential quadrature method. In order to indicate the influence of different material and scale parameters, a comprehensive parametric study is presented. It is shown that increasing the nonlocality term leads to lower natural frequency terms for cantilever nanobeams especially for the fundamental frequency parameter which differential nonlocal model is unable to track appropriately. Moreover, it is shown that rotating speed and hub radius have a remarkable effect in varying the mechanical behavior of rotating cantilever nanobeams. This study is a step forward in analyzing nanorotors, nanoturbines, nanoblades, etc.
Primary Subject
Source
S138694771830002X; Available from http://dx.doi.org/10.1016/j.physe.2018.02.008; Copyright (c) 2018 Elsevier B.V. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Physica E. Low-Dimensional Systems and Nanostructures (Print); ISSN 1386-9477;
; v. 99; p. 310-319

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AbstractAbstract
No abstract available
Primary Subject
Source
Available from http://dx.doi.org/10.1070/RM2012v067n03ABEH004801; Abstract only; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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AbstractAbstract
[en] In robust design, the mean and variance of design performance are frequently used to measure the design performance and its robustness under uncertainties. In this paper, we present the Gauss-type quadrature formula as a rigorous method for mean and variance estimation involving arbitrary input distributions and further extend its use to robust design optimization. One dimensional Gauss-type quadrature formula are constructed from the input probability distributions and utilized in the construction of multidimensional quadrature formula such as the tensor product quadrature (TPQ) formula and the univariate dimension reduction (UDR) method. To improve the efficiency of using it for robust design optimization, a semi-analytic design sensitivity analysis with respect to the statistical moments is proposed. The proposed approach is applied to a simple bench mark problems and robust topology optimization of structures considering various types of uncertainty
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Source
25 refs, 4 figs, 2 tabs
Record Type
Journal Article
Journal
Transactions of the Korean Society of Mechanical Engineers. A; ISSN 1226-4873;
; v. 33(8); p. 745-752

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Reference NumberReference Number
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AbstractAbstract
[en] The boundary layer of a finite domain [ a, b ] covers mesoscopic lateral neighborhoods, inside [ a, b ], of the endpoints a and b. The correct diagnostic of the integrand behavior at a and b, based on its sampling inside the boundary layer, is the first from a set of hierarchically ordered criteria allowing a priori Bayesian inference on efficient mesh generation in automatic adaptive quadrature.
Primary Subject
Source
Available from http://link.springer.com/openurl/pdf?id=doi:10.1134/S1547477108030278; Copyright (c) 2008 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Physics of Particles and Nuclei Letters (Print); ISSN 1547-4771;
; v. 5(3); p. 269-273

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External URLExternal URL
Krasnov, V. A., E-mail: krasnov@uniyar.ac.ru2018
AbstractAbstract
[en] This paper is devoted to describing properties of complete intersections of two real projective quadrics. For brevity we call such varieties biquadrics. One of the main sections is devoted to real projective spaces on real biquadrics. In another main section we study the topology of the real parts of biquadrics. The other sections are auxiliary. (paper)
Primary Subject
Source
Available from http://dx.doi.org/10.1070/IM8535; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Izvestiya. Mathematics; ISSN 1064-5632;
; v. 82(1); p. 91-139

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External URLExternal URL
Bradshaw, Mark; Lam, Ping Koy; Assad, Syed M, E-mail: syed.assad@anu.edu.au2019
AbstractAbstract
[en] Quantum discord is a measure of non-classical correlations, which are excess correlations inherent in quantum states that cannot be accessed by classical measurements. For multipartite states, the classically accessible correlations can be defined by the mutual information of the multipartite measurement outcomes. In general the quantum discord of an arbitrary quantum state involves an optimisation of over the classical measurements which is hard to compute. In this paper, we examine the quantum discord in the experimentally relevant case when the quantum states are Gaussian and the measurements are restricted to Gaussian measurements. We perform the optimisation over the measurements to find the Gaussian discord of the bipartite EPR state and tripartite GHZ state in the presence of different types of noise: uncorrelated noise, multiplicative noise and correlated noise. We find that by adding uncorrelated noise and multiplicative noise, the quantum discord always decreases. However, correlated noise can either increase or decrease the quantum discord. We also find that for low noise, the measurements that maximise the classically accessible correlations are single quadrature measurements. As the noise increases, a dual quadrature measurement becomes optimal. (paper)
Primary Subject
Source
Available from http://dx.doi.org/10.1088/1361-6455/ab443c; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Journal of Physics. B, Atomic, Molecular and Optical Physics; ISSN 0953-4075;
; CODEN JPAPEH; v. 52(24); [10 p.]

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AbstractAbstract
[en] NMR spectroscopy is central to atomic resolution studies in biology and chemistry. Key to this approach are multidimensional experiments. Obtaining such experiments with sufficient resolution, however, is a slow process, in part since each time increment in every indirect dimension needs to be recorded twice, in quadrature. We introduce a modified compressed sensing (CS) algorithm enabling reconstruction of data acquired with random acquisition of quadrature components in gradient-selection NMR. We name this approach random quadrature detection (RQD). Gradient-selection experiments are essential to the success of modern NMR and with RQD, a 50 % reduction in the number of data points per indirect dimension is possible, by only acquiring one quadrature component per time point. Using our algorithm (CSRQD), high quality reconstructions are achieved. RQD is modular and combined with non-uniform sampling we show that this provides increased flexibility in designing sampling schedules leading to improved resolution with increasing benefits as dimensionality of experiments increases, with particular advantages for 4- and higher dimensional experiments.
Primary Subject
Source
Copyright (c) 2017 Springer Science+Business Media B.V.; Article Copyright (c) 2016 The Author(s); Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Journal of Biomolecular NMR; ISSN 0925-2738;
; v. 68(2); p. 67-77

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