Results 21 to 30 of about 288,897 (274)

On the Critical Velocity of Moving Force and Instability of Moving Mass in Layered Railway Track Models by Semianalytical Approaches

Vibration, 2023
This article presents a comparison between layered models of a railway track. All analyses are based on semianalytical approaches to show how powerful they can be.
Zuzana Dimitrovová
doaj   +1 more source

Contour integration impairment in schizophrenia and first episode psychosis: state or trait? [PDF]

Schizophr Res, 2014
Feigenson KA, Keane BP, Roché MW, Silverstein SM.   +3 more
europepmc   +2 more sources

Cortical contributions to impaired contour integration in schizophrenia. [PDF]

Neuropsychologia, 2015
Silverstein SM, Harms MP, Carter CS, Gold JM, Keane BP, MacDonald A, Ragland JD, Barch DM.   +7 more
europepmc   +2 more sources

Instability of Vibrations of Mass(es) Moving Uniformly on a Two-Layer Track Model: Parameters Leading to Irregular Cases and Associated Implications for Railway Design

Applied Sciences, 2023
Ballasted railway tracks can be modeled using reduced/simplified models composed of several layers of discrete components. This paper deals with the two-layer model, which is very popular due to its computational efficiency.
Zuzana Dimitrovová
doaj   +1 more source

A Meshless Method Based on the Laplace Transform for the 2D Multi-Term Time Fractional Partial Integro-Differential Equation

Mathematics, 2020
In this article, we propose a localized transform based meshless method for approximating the solution of the 2D multi-term partial integro-differential equation involving the time fractional derivative in Caputo’s sense with a weakly singular kernel ...
Kamran Kamran, Zahir Shah, Poom Kumam, Nasser Aedh Alreshidi   +3 more
doaj   +1 more source

Bayesian contour integration [PDF]

Perception & Psychophysics, 2001
The process by which the human visual system parses an image into contours, surfaces, and objects--perceptual grouping--has proven difficult to capture in a rigorous and general theory. A natural candidate for such a theory is Bayesian probability theory, which provides optimal interpretations of data under conditions of uncertainty.
openaire   +2 more sources

Functional determinants by contour integration methods [PDF]

, 2003
We present a simple and accessible method which uses contour integration methods to derive formulae for functional determinants. To make the presentation as clear as possible, the general idea is first illustrated on the simplest case: a second order ...
Alan J. McKane, Barraza, Barraza, Bordag, Bordag, Brézin, Burghelea, Burghelea, Burghelea, Carron, Coleman, Courant, Dreyfuss, Falomir, Feynman, Forman, Forman, Gel’fand, Kirsten, Klaus Kirsten, Kleinert, Kleinert, Landau, Lesch, Lesch, Levit, McKane, Rajaraman, Saravi, Saravi, Schulman, Tarlie   +31 more
core   +1 more source

Resultants and contour integrals [PDF]

Functional Analysis and Its Applications, 2012
9 ...
Morozov, A., Shakirov, Sh.
openaire   +2 more sources

A FEAST Algorithm for the Linear Response Eigenvalue Problem

Algorithms, 2019
In the linear response eigenvalue problem arising from quantum chemistry and physics, one needs to compute several positive eigenvalues together with the corresponding eigenvectors.
Zhongming Teng, Linzhang Lu
doaj   +1 more source

Numerical contour integration for loop integrals [PDF]

Computer Physics Communications, 2006
A fully numerical method to calculate loop integrals, a numerical contour-integration method, is proposed. Loop integrals can be interpreted as a contour integral in a complex plane for an integrand with multi-poles in the plane. Stable and efficient numerical integrations an along appropriate contour can be performed for tensor integrals as well as ...
Kurihara, Y., Kaneko, T.
openaire   +3 more sources