Results 51 to 60 of about 133,666 (191)

A Probabilistic Approach to Robust Optimal Experiment Design with Chance Constraints [PDF]

open access: yes, 2014
Accurate estimation of parameters is paramount in developing high-fidelity models for complex dynamical systems. Model-based optimal experiment design (OED) approaches enable systematic design of dynamic experiments to generate input-output data sets ...
Mesbah, Ali, Streif, Stefan
core   +3 more sources

Parametrized systems of generalized polynomial equations: first applications to fewnomials

open access: yes, 2023
We consider positive solutions to parametrized systems of generalized polynomial equations (with real exponents and positive parameters). By a fundamental result obtained in parallel work, polynomial systems are determined by geometric objects, rather than matrices: a polytope $P$ (arising from the coefficient matrix) and two subspaces representing ...
Müller, Stefan, Regensburger, Georg
openaire   +2 more sources

Research on Hysteresis of Piezoceramic Actuator Based on the Duhem Model

open access: yesThe Scientific World Journal, 2013
To improve the modeling accuracy of piezoceramic actuator in the precision positioning system, the Duhem hysteretic model of the piezoceramic actuator was proposed.
Miaolei Zhou, Jingyuan Wang
doaj   +1 more source

New results on the generalized frequency response functions of nonlinear volterra systems described by NARX model [PDF]

open access: yes, 2008
In order that the nth-order Generalized Frequency Response Function (GFRF) for nonlinear systems described by a NARX model can be directly written into a more straightforward and meaningful form in terms of the first order GFRF and model parameters, the ...
Billings, S.A., Jing, X.J., Lang, Z.Q.
core   +1 more source

Positive dimensional parametric polynomial systems, connectivity queries and applications in robotics

open access: yesJournal of Symbolic Computation, 2023
This work considers parametric systems of polynomial equalities and inequalities, the positive dimensional semialgebraic sets defined by them and how these depend on the values of the parameters. In particular, it focuses on the number of connected components that the semialgebraic set has for a given point in parameter space. It proposes algorithms to,
Capco, Jose   +2 more
openaire   +2 more sources

Comprehensive Border Bases for Zero Dimensional Parametric Polynomial Ideals [PDF]

open access: yes, 2013
In this paper, we extend the idea of comprehensive Gr\"{o}bner bases given by Weispfenning (1992) to border bases for zero dimensional parametric polynomial ideals.
Dubey, Abhishek, Dukkipati, Ambedkar
core  

Robustness Analysis and Optimally Robust Control Design via Sum-of-Squares [PDF]

open access: yes, 2012
A control analysis and design framework is proposed for systems subject to parametric uncertainty. The underlying strategies are based on sum-of-squares (SOS) polynomial analysis and nonlinear optimization to design an optimally robust controller.
Crespo, Luis G.   +2 more
core   +1 more source

Optimal evolution models for quantum tomography

open access: yes, 2016
The research presented in this article concerns the stroboscopic approach to quantum tomography, which is an area of science where quantum Physics and linear algebra overlap.
Czerwiński, Artur
core   +1 more source

Feynman integrals as A-hypergeometric functions

open access: yesJournal of High Energy Physics, 2019
We show that the Lee-Pomeransky parametric representation of Feynman integrals can be understood as a solution of a certain Gel’fand-Kapranov-Zelevinsky (GKZ) system.
Leonardo de la Cruz
doaj   +1 more source

Ultra-Wideband Temperature Dependent Dielectric Spectroscopy of Porcine Tissue and Blood in the Microwave Frequency Range

open access: yesSensors, 2019
The knowledge of frequency and temperature dependent dielectric properties of tissue is essential to develop ultra-wideband diagnostic technologies, such as a non-invasive temperature monitoring system during hyperthermia treatment.
Sebastian Ley   +5 more
doaj   +1 more source

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