Results 111 to 120 of about 93,147 (298)

Stiffness Identification of High-Rise Buildings Based on Statistical Model-Updating Approach

open access: yesFrontiers in Built Environment, 2018
A system identification problem is investigated for high-rise buildings to identify the story stiffnesses of a shear-bending model (SB model). In the previously proposed stiffness identification method due to the present authors, the shear and bending ...
Kohei Fujita, Izuru Takewaki
doaj   +1 more source

A subspace fitting method based on finite elements for fast identification of damages in vibrating mechanical systems [PDF]

open access: yes, 2012
International audienceIn this paper, a method based on subspace fitting is proposed for identification of faults in mechanical systems. The method uses the modal information from an observability matrix, provided by a stochastic subspace identification ...
Gautier, Guillaume   +2 more
core   +1 more source

Koopman invariant subspaces and finite linear representations of nonlinear dynamical systems for control

open access: yes, 2015
In this work, we explore finite-dimensional linear representations of nonlinear dynamical systems by restricting the Koopman operator to an invariant subspace.
Brunton, Bingni W.   +3 more
core   +4 more sources

On subspace identification of cascade structured systems

open access: yes49th IEEE Conference on Decision and Control (CDC), 2010
In identification it is important to take a priori structural information into account in many applications, something that is difficult when using subspace methods. Here will study how to incorporate a special structure, a cascade structure with two subsystems. Two new methods are derived for estimating system with this structure.
Hägg, Per   +2 more
openaire   +3 more sources

Machine Learning Paradigm for Advanced Battery Electrolyte Development

open access: yesCarbon Energy, EarlyView.
Electrolyte materials determine ion transport kinetics within the bulk and interphases, ultimately influencing the performance of battery systems. As data‐driven paradigms increasingly reshape materials discovery, this review provides an application‐oriented exploration of the intersection between machine learning and electrolyte science. By evaluating
Chang Su   +4 more
wiley   +1 more source

Free-Decay Nonlinear System Identification via Mass-Change Scheme

open access: yesShock and Vibration, 2019
Methods for nonlinear system identification of structures generally require input-output measured data to estimate the nonlinear model, as a consequence of the noninvariance of the FRFs in nonlinear systems.
Dario Anastasio, Stefano Marchesiello
doaj   +1 more source

Calix[4]arene Design for Enhanced Carbon Capture via Topological Learning

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT Solid direct air capture (S‐DAC) technologies have the potential to remove pre‐existing CO2 from the atmosphere by taking advantage of hydrophobic materials that will retain CO2 through physisorption and separating it from the abundant water molecules. Calix[n]arenes are highly tunable and versatile complexes with inherent hydrophobic cavities,
Jeffrey A. Laub   +1 more
wiley   +1 more source

Damping Effects Induced by a Mass Moving along a Pendulum

open access: yesShock and Vibration, 2014
The experimental study of damping in a time-varying inertia pendulum is presented. The system consists of a disk travelling along an oscillating pendulum: large swinging angles are reached, so that its equation of motion is not only time-varying but also
E. Gandino   +4 more
doaj   +1 more source

Advanced control of non‐isothermal axial dispersion tubular reactors with recycle‐induced state delay

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract We develop a delay‐aware estimation and control framework for a non‐isothermal axial dispersion tubular reactor modelled as a coupled parabolic‐hyperbolic PDE system with recycle‐induced state delay. The infinite‐dimensional dynamics are preserved without spatial discretization by representing the delay as a transport PDE and adopting a late ...
Behrad Moadeli, Stevan Dubljevic
wiley   +1 more source

The Huang–Yang Formula for the Low‐Density Fermi Gas: Upper Bound

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We study the ground state energy of a gas of spin 1/2$1/2$ fermions with repulsive short‐range interactions. We derive an upper bound that agrees, at low density ϱ$\varrho$, with the Huang–Yang conjecture. The latter captures the first three terms in an asymptotic low‐density expansion, and in particular the Huang–Yang correction term of order
Emanuela L. Giacomelli   +3 more
wiley   +1 more source

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