نتایج جستجو برای: nonlinear dynamic data reconciliation

تعداد نتایج: 2898266  

2014
Paolo Nesi Pierfrancesco Bellini Nadia Rauch Riccardo Billero Monica Benigni

Presently, a very large number of public and private data sets are available around the local governments. In most cases, they are not semantically interoperable and a huge human effort is needed to create integrated ontologies and knowledge base for smart city. Smart City ontology is not yet standardized, and a lot of research work is needed to identify models that can easily support the data ...

2010
G. M. Stanley

O LI E DATA RECO CILIATIO FOR PROCESS CO TROL Combined data reconciliation with estimation of slowly changing parameters has been implemented for closed-loop control in a Chemical Plant. Goals include streamlining use of redundant measurements for backing up failed instruments, filtering noise, and, in some cases, reducing steady state estimation errors. Special considerations include bumpless ...

In order to study the stability and fast dynamic of the power grid, modeling and identification of hydropower plant systems such as turbine, governor and excitation is required. Turbine is a mechanical device and usually identified through field tests. In this paper, the identification of the unit 8 of Abbaspour power plant is conducted. The linear and nonlinear model of the Francis turbine are...

Journal: :J. Vis. Lang. Comput. 2014
Pierfrancesco Bellini Monica Benigni Riccardo Billero Paolo Nesi Nadia Rauch

Presently, a very large number of public and private data sets are available from local governments. In most cases, they are not semantically interoperable and a huge human effort would be needed to create integrated ontologies and knowledge base for smart city. Smart City ontology is not yet standardized, and a lot of research work is needed to identify models that can easily support the data ...

2004
A. Y. Ukhorskiy M. I. Sitnov A. S. Sharma K. Papadopoulos

[1] The Earth’s magnetosphere is a spatially extended nonlinear system driven far from equilibrium by the turbulent solar wind. During substorms it exhibits both global and multi-scale features which reconciliation has been a long standing issue. This paper presents a data-derived model of the solar wind-magnetosphere coupling that combines a nonlinear dynamical description of the global featur...

Journal: :international journal of civil engineering 0
f.r. rofooei civil engineering department, sharif university of technology, tehran, iran, m. r. mirjalili doctoral student, structural engineering, civil engineering department, sharif university of technology, tehran, iran n. k. a. attari department of structural engineering, building and housing research center (bhrc), tehran, iran

the nonlinear static procedures (nsps) proposed by design codes do not lead to reliable results especially for tall buildings. they generally provide inconsistent estimates of inelastic seismic demands, especially for the top floors due to their inabilities in considering the higher modes effects. in this paper, a new enhanced pushover procedure is proposed which is based on the envelope of the...

Journal: :Journal of Digital Imaging 2006

Karim Salahshoor, Vahid Mohammadnia

This paper presents an optimal integrated instrumentation sensor network design methodology for complex nonlinear chemical process plants using a Combinatorial Particle Swarm Optimiazation (CPSO) engine. No comprehensive sensor network design approach has been addressed yet in the literature to simultaneously incorporate cost, precision and reliability requirements for nonlinear plant...

A.A Motallebi J Sheikhi M Poorjamshidian

In this paper, Homotopy Analysis Method is used to analyze free non-linear vibrations of a beam simply supported by pinned ends under axial force. Mid-plane stretching is also considered for dynamic equation extracted for the beam. Galerkin decomposition technique is used to transform a partial dimensionless nonlinear differential equation of dynamic motion into an ordinary nonlinear differenti...

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