Results 31 to 40 of about 565,015 (288)

A Variational Beam Model for Failure of Cellular and Truss‐Based Architected Materials

open access: yesAdvanced Engineering Materials, EarlyView., 2023
Herein, a versatile and efficient beam modeling framework is developed to predict the nonlinear response and failure of cellular, truss‐based, and woven architected materials. It enables the exploration of their design space and the optimization of their mechanical behavior in the nonlinear regime. A variational formulation of a beam model is presented
Konstantinos Karapiperis   +3 more
wiley   +1 more source

A double inequality for tanhx

open access: yesJournal of Inequalities and Applications, 2020
In this paper, we prove that, for x>0 $x>0$, 1−exp(−x2x2+1)
Bo Zhang, Chao-Ping Chen
doaj   +1 more source

A Novel Measure of Uncertainty in the Dempster-Shafer Theory

open access: yesIEEE Access, 2020
In the Dempster-Shafer theory, how to quantitatively evaluate the quality of information is an essential issue and also an open issue. Many of measures of uncertainty have been proposed in previous work, whereas some measures among them had been proved ...
Ke Wen   +3 more
doaj   +1 more source

Axiomatization of an exponential similarity function [PDF]

open access: yesMathematical Social Sciences, 2008
Abstract An individual is asked to assess a real-valued variable y based on certain characteristics x  = ( x 1 ,…, x m ), and on a database consisting of n observations of ( x 1 ,…, x m , y ). A possible approach to combine past observations of x and y with the current values of x to generate an assessment of y is similarity ...
Antoine Billot   +4 more
openaire   +5 more sources

Architected Lattices with a Topological Transition

open access: yesAdvanced Engineering Materials, EarlyView., 2023
This article develops topological metamaterials showing multidirectional two‐step deformation under compression by embedding contact‐enabled topological mechanisms into lattice structures. Experiments on 3D‐printed 2D and 3D lattices and finite element simulations are conducted to demonstrate the working principle of the topological metamaterials.
Shivam Agarwal, Lihua Jin
wiley   +1 more source

On Exponential Functionals of Lévy Processes [PDF]

open access: yesJournal of Theoretical Probability, 2013
Exponential functionals of L vy processes appear as stationary distributions of generalized Ornstein-Uhlenbeck (GOU) processes. In this paper we obtain the infinitesimal generator of the GOU process and show that it is a Feller process. Further we use these results to investigate properties of the mapping , which maps two independent L vy processes
Anita Behme, Alexander Lindner
openaire   +3 more sources

Functional equations for the stochastic exponential

open access: yesStochastics and Dynamics, 2023
In this paper, we consider two versions of functional equations for the stochastic exponential. One equation for a function of a semimartingale and its square characteristic and the second for non-anticipative functionals. A martingale characterization of the general solutions of these equations is given.
Chikvinidze, Beso   +2 more
openaire   +2 more sources

Evaluación del desarrollo de competencias a partir de la modelación matemática

open access: yesIngenierías USBMed, 2019
In the present study, an educational intervention was carriedout in eleven graders belonging to the St. Vincent de Paul educationalinstitution in the city of Medellín, in order to build the concept ofexponential function in a meaningful way under the ...
Carlos Márquez   +2 more
doaj   +1 more source

A symmetrical exponential model of soil temperature in temperate steppe regions of China

open access: yesOpen Geosciences, 2023
Global warming has caused changes in various ecological processes and has potential to change ecosystems’ stability. In spite of comprehensive studies to investigate air temperatures under global warming, much less is known about changes in soil ...
Zhang Hui   +5 more
doaj   +1 more source

Some exponential and trigonometric integrals involving the log gamma function [PDF]

open access: yesarXiv, 2022
This paper considers some integrals where the integrand comprises the log gamma function or the digamma function multiplied by exponential or trigonometric functions.
arxiv  

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