Results 31 to 40 of about 134,418 (279)

Positive Solutions of Systems of Signed Parametric Polynomial Inequalities [PDF]

open access: yes, 2018
We consider systems of strict multivariate polynomial inequalities over thereals. All polynomial coefficients are parameters ranging over the reals, wherefor each coefficient we prescribe its sign. We are interested in the existenceof positive real solutions of our system for all choices of coefficientssubject to our sign conditions. We give a decision
Hong, H.   +1 more
openaire   +6 more sources

Short-term Power Demand Forecasting using the Differential Polynomial Neural Network [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2015
Power demand forecasting is important for economically efficient operation and effective control of power systems and enables to plan the load of generating unit.
Ladislav Zjavka
doaj   +1 more source

Solutions of BVPs arising in hydrodynamic and magnetohydro-dynamic stability theory using polynomial and non-polynomial splines

open access: yesAlexandria Engineering Journal, 2021
This paper describes the exceptionally precise results of 6th-order and 8th-order nonlinear boundary-value problems(BVPs). Cubic-Nonpolynomial spline(CNPS) and Cubic-polynomial spline(CNPS) are utilized to solve such types of BVPs.
Aasma Khalid   +4 more
doaj   +1 more source

Tabular Open Circuit Voltage Modelling of Li-Ion Batteries for Robust SOC Estimation

open access: yesEnergies, 2022
Battery management systems depend on open circuit voltage (OCV) characterization for state of charge (SOC) estimation in real time. The traditional approach to OCV-SOC characterization involves collecting OCV-SOC data from sample battery cells and then ...
Sneha Sundaresan   +4 more
doaj   +1 more source

Hierarchical Comprehensive Triangular Decomposition

open access: yes, 2014
The concept of comprehensive triangular decomposition (CTD) was first introduced by Chen et al. in their CASC'2007 paper and could be viewed as an analogue of comprehensive Grobner systems for parametric polynomial systems.
Chen, Zhenghong   +2 more
core   +1 more source

Instantaneous identification of Bouc-Wen-type hysteretic systems from seismic response data [PDF]

open access: yes, 2007
This paper presents a technique for identification of non-linear hysteretic systems subjected to non-stationary loading. In the numerical simulations, a Bouc-Wen model was chosen for its ability to represent the properties of a wide class of real ...
Ceravolo, Rosario   +2 more
core   +5 more sources

On exact solutions of equations of rotational motion of a rigid body under action of torque of circular-gyroscopic forces

open access: yesЖурнал Средневолжского математического общества, 2021
A nonlinear system of differential equations describing the rotational motion of a rigid body under the action of torque of potential and circular-gyroscopic forces is considered.
Kosov Alexander A., Semenov Eduard I.
doaj   +1 more source

Approximation of high-dimensional parametric PDEs [PDF]

open access: yes, 2015
Parametrized families of PDEs arise in various contexts such as inverse problems, control and optimization, risk assessment, and uncertainty quantification. In most of these applications, the number of parameters is large or perhaps even infinite.
Cohen, Albert, Devore, Ronald
core   +4 more sources

Parametric Identification of Nonlinear Vibration Systems Via Polynomial Chirplet Transform [PDF]

open access: yesJournal of Vibration and Acoustics, 2016
The response of a nonlinear oscillator is characterized by its instantaneous amplitude (IA) and instantaneous frequency (IF) features, which can be significantly affected by the physical properties of the system. Accordingly, the system properties could be inferred from the IA and IF of its response if both instantaneous features can be identified ...
Deng Y   +5 more
openaire   +2 more sources

A Dynamic BI–Orthogonal Field Equation Approach to Efficient Bayesian Inversion

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2017
This paper proposes a novel computationally efficient stochastic spectral projection based approach to Bayesian inversion of a computer simulator with high dimensional parametric and model structure uncertainty.
Tagade Piyush M., Choi Han-Lim
doaj   +1 more source

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