Results 31 to 40 of about 91,464 (283)

Accelerating equilibrium isotope effect calculations: I. Stochastic thermodynamic integration with respect to mass [PDF]

open access: yes, 2017
Accurate path integral Monte Carlo or molecular dynamics calculations of isotope effects have until recently been expensive because of the necessity to reduce three types of errors present in such calculations: statistical errors due to sampling, path ...
Karandashev, Konstantin, Vanicek, Jiri
core   +2 more sources

THE DISCRETIZATION OF THE POLARIZED SIGNAL

open access: yesНаучный вестник МГТУ ГА, 2018
Often, the monitoring systems solution of remote sensing problems, recognition (classification, discrimination) of radar objects using radio polarimetry methods is required in real time mode with the display of the current information on the radar ...
P. E. Korneev
doaj   +1 more source

Impacts of Discretization and Numerical Propagation on the Ability to Follow Challenging Square Wave Commands

open access: yesJournal of Marine Science and Engineering, 2022
This study determines the threshold for the computational rate of actuator motor controllers for unmanned underwater vehicles necessary to accurately follow discontinuous square wave commands.
Sung Mo Koo, Henry Travis, Timothy Sands
doaj   +1 more source

MORPHOLOGICAL SAMPLING OF CLOSED SETS

open access: yesImage Analysis and Stereology, 2011
We briefiy survey the standard morphological approach (Heijmans, 1994) to the sampling (or discretization) of sets. Then we summarize the main results of our metric theory of sampling (Ronse and Tajine, 2000; 2001; 2002; Tajine and Ronse, 2002), which ...
Christian Ronse, Mohamed Tajine
doaj   +1 more source

Efficient Planar Near-Field Measurements for Radiation Pattern Evaluation by a Warping Strategy

open access: yesIEEE Access, 2021
The sampling of the near-field radiated by a planar source observed over a finite planar aperture is addressed. To this end, we employ the warping method that amounts to properly change the observation variables and finding the sampling points as those ...
Maria Antonia Maisto   +3 more
doaj   +1 more source

Exact Simulation of Non-stationary Reflected Brownian Motion [PDF]

open access: yes, 2013
This paper develops the first method for the exact simulation of reflected Brownian motion (RBM) with non-stationary drift and infinitesimal variance. The running time of generating exact samples of non-stationary RBM at any time $t$ is uniformly bounded
Glynn, Peter W., Mousavi, Mohammad
core   +1 more source

A Theory for Sparse Event-Based Closed Loop Control

open access: yesFrontiers in Neuroscience, 2019
Most dynamic systems are controlled by discrete time controllers. One of the main challenges faced during the design of a digital control law is the selection of the appropriate sampling time.
Pierre Daye   +8 more
doaj   +1 more source

An Exact Auxiliary Variable Gibbs Sampler for a Class of Diffusions

open access: yes, 2020
Stochastic differential equations (SDEs) or diffusions are continuous-valued continuous-time stochastic processes widely used in the applied and mathematical sciences. Simulating paths from these processes is usually an intractable problem, and typically
Rao, Vinayak, Teh, Yee Whye, Wang, Qi
core   +1 more source

Computation of the Modes of Elliptic Waveguides with a Curvilinear 2D Frequency-Domain Finite-Difference Approach [PDF]

open access: yes, 2012
A scalar Frequency-Domain Finite-Difference approach to the mode computation of elliptic waveguides is presented. The use of an elliptic cylindrical grid allows us to take exactly into account the curved boundary of the structure and a single mesh has ...
Casula GA   +3 more
core   +1 more source

Accelerated stochastic sampling of discrete statistical systems [PDF]

open access: yesPhysical Review E, 2010
We propose a method to reduce the relaxation time towards equilibrium in stochastic sampling of complex energy landscapes in statistical systems with discrete degrees of freedom by generalizing the platform previously developed for continuous systems. The method starts from a master equation, in contrast to the Fokker-Planck equation for the continuous
Bertalan, Zsolt   +2 more
openaire   +3 more sources

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