When a fault occurs in process, it slowly propagates within the system and affects measurements triggering sequence of alarms control room. The operators are required to diagnose cause take necessary corrective measures. idea representing alarm as propagation path using is explored. A diagnoser based on hidden Markov model built identify signals. proposed approach applied an industrial case stu...

The purpose of this article is to present a new procedure for industrial process diagnosis. This method is based on bayesian classifiers. A feature selection is done before the classification between the different faults of a process. The feature selection is based on a new result about mutual information that we demonstrate. The performances of this method are evaluated on the data of a benchm...

For using process operational data to realize process monitoring, kinds of improved Principal Components Analysis (PCA) have been applied to cope with complex industrial processes. In this paper, a novel nonlinear wavelet packet PCA (NLWPPCA) method, which combines input training network with wavelet packet PCA, is proposed. Wavelet packet PCA integrates ability of PCA to de-correlate the varia...

In this work we investigate the matter of “secure control” – a novel research direction capturing security objectives specific to Industrial Control Systems (ICS). We provide an empirical analysis of the well known Tennessee Eastman process control challenge problem to gain insights into the behavior of a physical process when confronted with cyber-physical attacks. In particular, we investigat...

A feed-forward neural network is proposed for monitoring operating modes of large scale processes. A Gaussian hidden layer associated with a Kohonen output layer map the principal features of measurements of state variables. Subsets of selective neurons are generated into the hidden layer by means of self adapting of centers and dispersions parameters of the Gaussian functions. The output layer...

Dr. Lenworth Jacobs, Hartford Hospital, Board of Regents, American College of Surgeons Dr. Norman McSwain, Medical Director, Prehospital Trauma Life Support Dr. Michael Rotondo, Chair, American College of Surgeons Committee on Trauma Dr. David Wade, Chief Medical Officer, FBI Dr. William Fabbri, Medical Director, Emergency Medical Support Program, FBI Dr. Alexander Eastman, Major Cities Chiefs ...

Thomas F. Edgar a,∗, Babatunde A. Ogunnaike b, James J. Downs c, Kenneth R. Muske d, B. Wayne Bequette e a Department of Chemical Engineering, University of Texas, Austin, TX 78712, United States b Department of Chemical Engineering, University of Delaware, Newark, DE 19716-3110, United States c Eastman Chemical Company, P.O. Box 511, Kingsport, TN 37662, United States d Department of Chemical ...

1TNO Nutrition and Food Research Institute, Utrechtsweg, The Netherlands; 2Pathophysiology Section, Laboratorio di Fisiopatologia di Organo e di Sistema, Istituto Superiore di Sanita, Roma, Italy; 3Neurotoxicology Division, Health Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; 4University of Rochester, School of Medicine & Dentistry, D...

Different genetic supports for the tet(S) gene in enterococci 1 2 Carla Novais , Ana R. Freitas , Eduarda Silveira, Fernando Baquero, Luísa 3 Peixe, Adam P. Roberts, Teresa M. Coque 3,4,5 4 5 REQUIMTE. Faculdade Farmácia. Universidade do Porto. Portugal; CEBIMED. 6 Faculdade Ciências da Saúde. Universidade Fernando Pessoa. Porto. Portugal; Servicio 7 de Microbiología, Instituto Ramón y Cajal de...