Publications

Note: not all the PDF links are present in the following text. If a link is missing, please using the original ASCEND bibliography page to find the document.

In date order, divided according to category.

Doctoral theses

V Rico-Ramirez, Representation, Analysis and Solution of Conditional Models in an Equation-Based Environment, Ph.D. Thesis, Carnegie Mellon University,1998. PDF

K A Abbott, Very Large Scale Modeling Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1996. PDF

B A Allan, A More Reusable Modeling System, Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1997. PDF

B T Safrit, Synthesis of Azeotropic Batch Distillation Separation Systems, Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1996. PDF

M Thomas, Tool and Information Management in Engineering Design, Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1996. PDF

R S Huss, Collocation Methods For Flexible Distillation Design, Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1995. PDF

J Zaher, Conditional Modeling, Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1995. PDF

P Piela, ASCEND: An Object-Oriented Computer Environment for Modeling and Analysis, Ph.D. Thesis, Carnegie Mellon University, Pittsburgh, PA, 1989. Abstract

Journal papers

A W Westerberg, 2003, A retrospective on design and process synthesis, Computers & Chemical Engineering, 28 (4), 447-458. doi:10.1016/j.compchemeng.2003.09.029.

V. Rico-Ramírez, B. A. Allan, and A. W. Westerberg, 1999, Conditional Modeling. 1. Requirements for an Equation-Based Environment, Ind. Eng. Chem. Res., 38 (2), pp 519–530. doi:10.1021/ie9800593

V. Rico-Ramírez and A. W. Westerberg, 1999, Conditional Modeling. 2. Solving Using Complementarity and Boundary-Crossing Formulations, Ind. Eng. Chem. Res., 38 (2), pp 531–553. doi:10.1021/ie9800602

Kirk A Abbott, Benjamin A Allan, and Arthur W Westerberg, 1997, Global preordering for Newton equations using model hierarchy, AIChE Journal 43 (12), doi:10.1002/aic.690431207

B T Safrit, A W Westerberg, U Diwekar, O M Wahnschafft, 1995, Extending Continuous Conventional and Extractive Distillation Feasibility Insights to Batch Distillation, Ind. Eng. Chem. Res., 34, 3257-3264. doi:10.1021/ie00037a012

Katzenberg, B., and Piela, P., 1993, Work Language Analysis and the Naming Problem, Communication of the ACM, Vol. 36, No. 6, 86-92. doi:10.1145/153571.163286

Piela, P., McKelvey, R., and Westerberg, A., 1993, An Introduction to the ASCEND Modeling System: Its Language and Interactive Environment, ; Journal of Management Information Systems ,Vol. 9, No.3, 91-121. Abstract, Full article

Piela, P., Katzenberg, B., and McKelvey, R., 1992, Integrating the User into Research on Engineering Design Systems ASCEND: An Object-Oriented Computer Environment for Modeling, Research in Engineering Design, Vol. 3, 211-221. doi:10.1007/BF01580843

Oliver J Smith IV and Arthur W Westerberg, 1991, The optimal design of pressure swing adsorption systems, Chemical Engineering Science, '48 (12), doi:10.1016/0009-2509(91)85001-E

P Piela, T Epperly, K Westerberg and A Westerberg, 1991, ASCEND: An Object-Oriented Computer Environment for Modeling and Analysis: The Modeling Language., Computers and Chemical Engineering, Vol. 15, No. 1, 53-72, . doi:10.1016/0098-1354(91)87006-U

R F Woodbury, 1990, Variations in Solids: A Declarative Treatment, Computers and Graphics, Special Issue on Features and Geometric Reasoning, Vol. 14, No. 2, 173-188. doi:10.1016/0097-8493(90)90030-2

A W Westerberg and D R Benajamin, 1985, Thoughts on a Future Equation-Oriented Flowsheeting System, Computers and Chemical Engineering, Vol. 9, No. 5, 517-526. doi:10.1016/0098-1354(85)80026-0

Michael H Locke and Arthur W Westerberg, 1983, The ascend-II system—a flowsheeting application of a successive quadratic programming methodology, Computers & Chemical Engineering 7 (5) 615-630. doi:10.1016/0098-1354(83)80007-6

Conference presentations and papers

Allan, B.A. and A. W. Westerberg, Compiling and Solving 100,000 equations on a PC in (3) minutes Carnegie Mellon University, Pittsburgh, PA, 1998. Presented April 1998 at INFORMS Montreal conference.

PDF File

Bhargava, H., Krishnan, R., and Piela, P., Formalizing the Semantics of ASCEND, Proceeding of the 27th Hawaii International Conference on the System Sciences, IEEE Computer Society Press, 1994.

Abstract

Krishnan, R., Piela, P., and Westerberg, A., Reusing Mathematical Models in ASCEND, Recent Developments in Decision Support Systems, C. W. Holsapple and A. B. Whinston (eds.). Proceedings of the NATO ASI on Decision Support Systems. Springer-Verlag, in cooperation with NATO Scientific Affairs Division, 1993.

Abstract

Westerberg, A.W., Abbott, K.A., and Allan, B.A., Plans for ASCEND IV: Our Next Generation Equational-Based Modeling Environment, AspenWorld 94, Boston Massachusetts, November 1994.

Abstract

Westerberg, A., Piela, P., McKelvey, R., and Epperly, T., The ASCEND Modeling Environment and Its Implications, Proceedings of the 4th International Symposium on Process Systems Engineering, I: Design, I.2.1 - I.2.12, 1991.

Abstract

Westerberg, A., Piela, P., Subrahmanian, E., Podnar, G., and Elm, W., A Future Computer Environment for Preliminary Design, Proceedings of the Third International Conference on Foundations of Computer Aided Process Design, J. Siirola, I. Grossmann, and G. Stephanopoulos (eds.), 1989.

Abstract

Technical reports

J L Perry and B A Allan, 1996, Design and Use of Dynamic Modeling in ASCEND IV, Carnegie Mellon University, EDRC Technical Report 06-224-96. PDF.

P Piela and A W Westerberg, 1994, Equation-Based Process Modeling, Carnegie Mellon University, EDRC Technical Report. PDF.

A W Westerberg, 1994, ASCEND Modeling Language and Environment Notes, CAPD Short Course Notes, Carnegie Mellon University.

T Epperly, 1989, Implementation of an ASCEND Interpreter, Carnegie Mellon University, EDRC Technical Report 05-29-89, PDF.

Allan, B.A. and A. W. Westerberg, Anonymous Class in Declarative Mathematical Modeling, Carnegie Mellon University, Pittsburgh, PA, 1998. (Submitted.)

PDF File

Allan, B.A. and A. W. Westerberg, Reusability and Scalability in Modeling (Previously titled "Reusability in Modeling and Modeling Support Environments"), Carnegie Mellon University, ICES Technical Report, November 1997. Pittsburgh, PA, 1997. (AIChE 1997 Meeting Paper 201f.)

BibCite PDF File Talk PDF

Allan, B.A. and Westerberg, A.W., The ASCEND IV Language Syntax and Semantics, Carnegie Mellon University, EDRC Technical Report, 1997.

BibCite PDF File

Allan, B.A., Rico-Ramirez, V., Thomas, M.,and Tyner, K., ASCEND IV: A portable Mathematical Modeling Environment, Carnegie Mellon University, ICES Technical Report, October 1996.

BibCite PDF File

Dee, K. and Westerberg, A., CEPHDA: Chemical Engineering Process Hierarchical Design with ASCEND, Carnegie Mellon University, EDRC Technical Report 06-140-92, 1992

Abstract

Rico-Ramirez, V., Allan, B.A. and Westerberg, A.W., Conditional Modeling in an Equation-Based Environment, Carnegie Mellon University, ICES Technical Report 06-242-98, 1998.

BibCite PDF File

Rico-Ramirez, V. and Westerberg, A.W., Complementarity Formulation for the Representation of Algebraic Systems Containing Conditional Equations, Carnegie Mellon University, ICES Technical Report 06-243-98, 1998.

BibCite PDF File

Westerberg, K., Development of Software for Solving Systems of Nonlinear Equations, Carnegie Mellon University, EDRC Technical Report 05-36-89, Pittsburgh, PA, 1989.

Abstract BibCite PDF File

Westerberg, K., Development of Software for Solving Systems of Linear Equations, Carnegie Mellon University, EDRC Technical Report 05-35-89, 1989.

Abstract PDF File

Zaher, J., Developing Reusable Libraries in the ASCEND environment, Carnegie Mellon University, EDRC Technical Report 06-108-91, 1991.

Abstract