Results 51 to 60 of about 5,016,978 (196)
Superintegrability and time-dependent integrals [PDF]
Archivum Mathematicum, 2019 Summary: While looking for additional integrals of motion of several minimally superintegrable systems in static electric and magnetic fields, we have realized that in some cases Lie point symmetries of Euler-Lagrange equations imply existence of explicitly time-dependent integrals of motion through Noether's theorem. These integrals can be combined to
Kubů, Ondřej, Šnobl, Libor
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Time Domain Room Acoustic Solver with Fourth-Order Explicit FEM Using Modified Time Integration
Applied Sciences, 2020 This paper presents a proposal of a time domain room acoustic solver using novel fourth-order accurate explicit time domain finite element method (TD-FEM), with demonstration of its applicability for practical room acoustic problems. Although time domain
Takumi Yoshida +2 more
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Distance Error Correction in Time-of-Flight Cameras Using Asynchronous Integration Time
Sensors, 2020 A distance map captured using a time-of-flight (ToF) depth sensor has fundamental problems, such as ambiguous depth information in shiny or dark surfaces, optical noise, and mismatched boundaries.
Eu-Tteum Baek +4 more
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Time delay and integration detectors using charge transfer devices [PDF]
, 1981 An imaging system comprises a multi-channel matrix array of CCD devices wherein a number of sensor cells (pixels) in each channel are subdivided and operated in discrete intercoupled groups of subarrays with a readout CCD shift register terminating each ...
Mccann, D. H. +2 more
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Quasi symplectic integrators for stochastic differential equations
, 2003 Two specialized algorithms for the numerical integration of the equations of motion of a Brownian walker obeying detailed balance are introduced. The algorithms become symplectic in the appropriate limits, and reproduce the equilibrium distributions to ...
Mannella, R
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Time Integration of Tensor Trains [PDF]
SIAM Journal on Numerical Analysis, 2015 A robust and efficient time integrator for dynamical tensor approximation in the tensor train or matrix product state format is presented. The method is based on splitting the projector onto the tangent space of the tensor manifold. The algorithm can be used for updating time-dependent tensors in the given data-sparse tensor train / matrix product ...
Lubich, Christian +2 more
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Inverse filtering for time, delay and integration X-ray imaging [PDF]
Advances in Radio Science, 2011 In food industry, most finished products are scanned by X-ray for contaminations. These X-ray machines continuously scan the product passing through. To minimize the required X-ray power, a Time, Delay and Integration (TDI) CCD sensor is used to capture ...
M. Rosenbaum +2 more
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Task integration in time production [PDF]
Attention, Perception, & Psychophysics, 2010 Two experiments examined training on a prospective time production task. Participants produced intervals, expressed in fixed arbitrary units, while performing a concurrent secondary task. After a 15-min filled delay, the participants were retrained on the same tasks.
Erica L, Wohldmann +2 more
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Acta PolytechnicaTime history analysis using direct time integration is a versatile and widely accepted tool for analysing the dynamic behaviour of structures. In 2008, a technique was proposed to accelerate the time history analysis of structural systems subjected to ...
Aram Soroushian
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Symplectic integration and physical interpretation of time-dependent coupled-cluster theory
, 2019 The formulation of the time-dependent Schrodinger equation in terms of coupled-cluster theory is outlined, with emphasis on the bivariational framework and its classical Hamiltonian structure.
Kvaal, Simen, Pedersen, Thomas Bondo
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