Results 51 to 60 of about 1,606 (214)

A characterization of the generalized Liénard polynomial differential systems having invariant algebraic curves [PDF]

open access: yes, 2022
The generalized Liénard polynomial differential systems are the differential systems of the form x' = y, y' = - f(x)y - g(x), where f and g are polynomials.
Giné, Jaume, Llibre, Jaume
core   +1 more source

Stochastic simulation and robust design optimization of integrated photonic filters

open access: yesNanophotonics, 2017
Manufacturing variations are becoming an unavoidable issue in modern fabrication processes; therefore, it is crucial to be able to include stochastic uncertainties in the design phase. In this paper, integrated photonic coupled ring resonator filters are
Weng Tsui-Wei   +3 more
doaj   +1 more source

Time‐Delayed Spiking Reservoir Computing Enables Efficient Time Series Prediction

open access: yesAdvanced Intelligent Systems, EarlyView.
This study proposes time‐delayed spiking reservoir computing (TDSRC) for efficient time series prediction. By concatenating time‐lagged states, TDSRC constructs an expanded readout feature vector without altering internal reservoir dynamics. This approach enables highly accurate forecasting with significantly fewer neurons, providing a resource ...
Pin Jin   +3 more
wiley   +1 more source

Stochastic modeling of flow structure interactions using generalized polynomial chaos

open access: yes, 2001
We present a generalized polynomial chaos algorithm to model the input uncertainty and its propagation in flow-structure interactions. The stochastic input is represented spectrally by employing orthogonal polynomial functionals from the Askey scheme as ...
George Em Karniadakis   +4 more
core   +1 more source

Embracing Complexity in HRM Research: A Call for System and Process Perspectives

open access: yesHuman Resource Management, EarlyView.
ABSTRACT Human resource management (HRM) is inherently complex. It involves systems of principles, practices, and activities operating at individual, group, organizational, and macro levels, which are interlinked through complex processes. Yet, empirical research has not kept pace with this conceptual richness.
Rebecca Hewett, Madleen Meier‐Barthold
wiley   +1 more source

STOCHASTIC STRUCTURAL MODAL ANALYSIS INVOLVING UNCERTAIN PARAMETERS USING GENERALIZED POLYNOMIAL CHAOS EXPANSION

open access: yes, 2011
In this paper, the application of generalized polynomial chaos expansion in stochastic structural modal analysis including uncertain parameters is investigated. We review the theory of polynomial chaos and relating error analysis.
K. SEPAHVAND, H.-J. HARDTKE, S. MARBURG
core   +1 more source

Do the generalized polynomial chaos and Fröbenius methods retain the statistical moments of random differential equations? [PDF]

open access: yes, 2013
The aim of this paper is to explore whether the generalized polynomial chaos (gPC) and random Fröbenius methods preserve the first three statistical moments of random differential equations. There exist exact solutions only for a few cases, so there is
Romero, José-Vicente   +3 more
core   +1 more source

T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma   +2 more
wiley   +1 more source

A multi-element generalized polynomial chaos approach to analysis of mobile robot dynamics under uncertainty

open access: yes, 2009
The ability of mobile robots to quickly and accurately analyze their dynamics is critical to their safety and efficient operation. In field conditions, significant uncertainty is associated with terrain and/or vehicle parameter estimates, and this must ...
Kewlani, Gaurav,   +5 more
core   +1 more source

The Influence of Random Element Displacement on DOA Estimates Obtained with (Khatri–Rao-)Root-MUSIC

open access: yesSensors, 2014
Although a wide range of direction of arrival (DOA) estimation algorithms has been described for a diverse range of array configurations, no specific stochastic analysis framework has been established to assess the probability density function of the ...
Veronique Inghelbrecht   +3 more
doaj   +1 more source

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