Engineering Expert Systems

Chemical Safety Information Databases Environmental Information Databases Infrared Data Correlations with Chemical Structure NMR Data Correlation with Chemical Structure NMR Refinement Online Databases in Chemistry Reaction Databases. 

Simpson, ed., Chemical Engineering Progress Annual Software Directory , Chem. Eng. Prog., 1997, 93(1), suppl. 

AI = artificial intelligence GUI = graphical user interface HAZOP = hazard and operability HEN = heat exchanger network HNS = heuristic-numeric System KBS = knowledge-based system MILP = mixed integer linear programming XPS = expert system. 

This article tries to introduce to the so-called Expert System Technology which forms one part of the area of Artificial Intelligence (see Artificial Intelligence in Chemistry). It defines an expert system and its components, provides a historical review on the technology, highlights the most common areas in which expert systems are used, and gives an overview of the state of 

An expert system is a computer program which incorporates knowledge about a certain topic. Information on how to work on a specific task is collected and stored in the computer. Experienced people as well as textbooks or process data can serve as knowledge sources. This knowledge can then be used by less experienced people who work on that topic. Normally, it is not intended to automate the task but to support (and guide) the user by providing intelligent assistance. 

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In chemistry and chemical engineering, expert systems are used for various tasks ranging from laboratory automation or reaction kinetics to the design of syntheses or the simulations of processes [24]. The application of expert systems in chemistry is described in more detail in Chapter IX, Section 2 of the Handbook,... 

G. Schembecker, Chemical Engineering Expert Systems, in Encyclopedia cf Computational Chemistry, P.v.R. Schleyer, N. L. AlUnger, T. Clark,... 

Implementation of an Expert System for On-Line Fault Diagnosis in a Commercial Scale Chemical Process Impact and Requirements of Knowledge-Based Software Expert Systems in the Pulp and Paper Industry ICI Process Engineering Expert Systems - Present and Future Development of a Diagnostic Expert System for a Whipped Toppings Process... 

Ar icial Intelligence in Chemistry Chemical Engineering Expert Systems Environmental Chemistry QSAR Structwre and Substructure Searching Topological Indices. 

Artificial Intelligence in Chemistry Chemical Engineering Expert Systems Chemometrics Multivariate View on Chemical Problems Electrostatic Potentials Chemical Applications Environmental Chemistry QSAR Experimental Data Evaluation and Quality Control Fuzzy Methods in Chemistry Infrared Data Correlations with Chemical Structure Infrared Spectra Interpretation by the Characteristic Frequency Approach Machine Learning Techniques in Chemistry NMR Data Correlation with Chemical Structure Protein Modeling Protein Structure Prediction in ID, 2D, and 3D Quality Control, Data Analysis Quantitative Structure-Activity Relationships in Drug Design Quantitative Structure-Property Relationships (QSPR) Shape Analysis Spectroscopic Databases Structure Determination by Computer-based Spectrum Interpretation. 

Chemical Engineering Expert Systems Chemometrics Multivariate View on Chemical Problems Partial Least Squares Projections to Latent Structures (PLS) in Chemistry Quality Control, Data Analysis Spectroscopy Computational Methods Wave Packets. 

HAZOP is one of the commonly methods for hazard and operability analysis. However, it may not be the best for all hazard evaluation cases or situations throughout the plant lifecycle. Hence, we are proposing an integrated hazard evaluation manager (HEM) module that can apply the most suitable qualitative and/or quantitative hazard evaluation method for each situation based on selection criteria. A built-in decision engine (expert system) is used to decide intelligently the most suitable hazard evaluation method based on the selection criteria. 

At present many international conferences have been focused on the emerging applications of expert systems in engineering. Expert systems can be considered to be the first applications of a new technology called the artificial intelligence [ 12 ]. ... 

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