@article{saadat_buckner_noori_2007, title={Structural system identification and damage detection using the intelligent parameter varying technique: An experimental study}, volume={6}, ISSN={["1741-3168"]}, DOI={10.1177/1475921707081980}, abstractNote={ The unique capabilities of the intelligent parameter varying (IPV) technique for structural system identification and damage detection have been previously documented via comparative simulations. An intelligent parameter varying (IPV) approach for non-linear system identification of base excited structures. International Journal of Non-Linear Mechanics, 39(6), 993—1004; Saadat, S., Noori, M.N., Buckner, G.D., Furukawa, T.D. and Suzuki, Y. (2004). Structural health monitoring and damage detection using an intelligent parameter varying (IPV) technique. International Journal of Non-Linear Mechanics, 39(10), 1687—1697). These simulations demonstrate the effectiveness of IPV in detecting the existence and location of damage in base excited structures, and conclude that accuracy is not compromised by the introduction of realistic structural nonlinearities and ground excitation characteristics. This study presents an experimental verification of the IPV technique for structural system identification and damage detection. A scaled three-story, base-excited structure is designed and fabricated for these experiments. The structure is excited using a displacement-controlled shake table, and damage is introduced by triggering the release of cross-bracing tendons, i.e., inducing sudden changes in the restoring forces. Experimental results using harmonic and recorded earthquake excitation data clearly demonstrate the effectiveness of this IPV technique. }, number={3}, journal={STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL}, author={Saadat, Soheil and Buckner, Gregory D. and Noori, Mohammad N.}, year={2007}, month={Sep}, pages={231–243} }
 @article{comins_sahn_2005, title={A six-step asymmetric synthesis of (+)-hyperaspine}, volume={7}, ISSN={["1523-7052"]}, DOI={10.1021/ol052068v}, abstractNote={ADVERTISEMENT RETURN TO ISSUEPREVLetterNEXTA Six-Step Asymmetric Synthesis of (+)-HyperaspineDaniel L. Comins and James J. SahnView Author Information Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204 Cite this: Org. Lett. 2005, 7, 23, 5227–5228Publication Date (Web):October 21, 2005Publication History Received26 August 2005Published online21 October 2005Published inissue 1 November 2005https://doi.org/10.1021/ol052068vCopyright © 2005 American Chemical SocietyRequest reuse permissionsArticle Views1383Altmetric-Citations44LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit Read OnlinePDF (39 KB) Get e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Alcohols,Enantioselective synthesis,Ketones,Redox reactions Get e-Alerts}, number={23}, journal={ORGANIC LETTERS}, author={Comins, DL and Sahn, JJ}, year={2005}, month={Nov}, pages={5227–5228} }
 @article{saadat_buckner_furukawa_noori_2004, title={An intelligent parameter varying (IPV) approach for non-linear system identification of base excited structures}, volume={39}, ISSN={["0020-7462"]}, DOI={10.1016/S0020-7462(03)00091-X}, abstractNote={Health monitoring and damage detection strategies for base-excited structures typically rely on accurate models of the system dynamics. Restoring forces in these structures can exhibit highly non-linear characteristics, thus accurate non-linear system identification is critical. Parametric system identification approaches are commonly used, but require a priori knowledge of restoring force characteristics. Non-parametric approaches do not require this a priori information, but they typically lack direct associations between the model and the system dynamics, providing limited utility for health monitoring and damage detection. In this paper a novel system identification approach, the intelligent parameter varying (IPV) method, is used to identify constitutive non-linearities in structures subject to seismic excitations. IPV overcomes the limitations of traditional parametric and non-parametric approaches, while preserving the unique benefits of each. It uses embedded radial basis function networks to estimate the constitutive characteristics of inelastic and hysteretic restoring forces in a multi-degree-of-freedom structure. Simulation results are compared to those of a traditional parametric approach, the prediction error method. These results demonstrate the effectiveness of IPV in identifying highly non-linear restoring forces, without a priori information, while preserving a direct association with the structural dynamics.}, number={6}, journal={INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS}, author={Saadat, S and Buckner, GD and Furukawa, T and Noori, MN}, year={2004}, month={Aug}, pages={993–1004} }
 @article{saadat_noori_buckner_furukawa_suzuki_2004, title={Structural health monitoring and damage detection using an intelligent parameter varying (IPV) technique}, volume={39}, ISSN={["1878-5638"]}, DOI={10.1016/j.ijnonlinmec.2004.03.001}, abstractNote={Most structural health monitoring and damage detection strategies utilize dynamic response information to identify the existence, location, and magnitude of damage. Traditional model-based techniques seek to identify parametric changes in a linear dynamic model, while non-model-based techniques focus on changes in the temporal and frequency characteristics of the system response. Because restoring forces in base-excited structures can exhibit highly non-linear characteristics, non-linear model-based approaches may be better suited for reliable health monitoring and damage detection. This paper presents the application of a novel intelligent parameter varying (IPV) modeling and system identification technique, developed by the authors, to detect damage in base-excited structures. This IPV technique overcomes specific limitations of traditional model-based and non-model-based approaches, as demonstrated through comparative simulations with wavelet analysis methods. These simulations confirm the effectiveness of the IPV technique, and show that performance is not compromised by the introduction of realistic structural non-linearities and ground excitation characteristics.}, number={10}, journal={INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS}, author={Saadat, S and Noori, MN and Buckner, GD and Furukawa, TD and Suzuki, Y}, year={2004}, month={Dec}, pages={1687–1697} }
 @article{saadat_salichs_noori_hou_davoodi_bar-on_suzuki_masuda_2002, title={An overview of vibration and seismic applications of NiTi shape memory alloy}, volume={11}, ISSN={["0964-1726"]}, DOI={10.1088/0964-1726/11/2/305}, abstractNote={Shape memory alloys (SMAs) exhibit peculiar thermomechanical, thermoelectrical and thermochemical behaviors under mechanical, thermal, electrical and chemical conditions. Examples of these materials are Cu-based SMAs, NiTi SMAs, ferrous SMAs, shape memory ceramics and shape memory polymers. NiTi SMAs in particular, have unique thermomechanical behaviors such as shape memory effect and pseudoelasticity, which have made them attractive candidates for structural vibration control applications. Numerous studies have been conducted in modeling and applications of NiTi SMAs in structural vibration control. Several active, passive and hybrid energy absorption and vibration isolation devices have been developed utilizing NiTi SMAs. In this paper we present an overview of NiTi behaviors, modeling and applications as well as their limitations for structural vibration control and seismic isolation.}, number={2}, journal={SMART MATERIALS & STRUCTURES}, author={Saadat, S and Salichs, J and Noori, M and Hou, Z and Davoodi, H and Bar-On, I and Suzuki, Y and Masuda, A}, year={2002}, month={Apr}, pages={218–229} }