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23rd ACM/IEEE design Automation Conference, DAC 1986

作者： Just, Knut M. Kleinhans, Jürgen M. Johannes, Frank M. Institute of Computer-Aided Design Department of Electrical Engineering Technical University of Munich Germany

ISBN: (纸本)0818607025

A new two-phased method for the simultaneous placement of modules for standard-cell layout is presented. In phase one, a relative placement is calculated by application of an iterative solution method taking advantage of net-list sparsity. A fast algorithm is derived from a new formulation of the problem. In addition, signal weights and pin coordinates are considered. In phase two, different-sized modules are assigned to physical locations by solving a transportation problem. © 1986 IEEE.

关键词： computer aided design

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VLSI CAD tool integration using the Ulysses environment

VLSI CAD tool integration using the Ulysses environment

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23rd ACM/IEEE design Automation Conference, DAC 1986

作者： Bushnell, Michael L. Director, S.W. SRC-CMU Research Center for Computer-Aided Design Department of Electrical and Computer Engineering Carnegie-Mellon University PittsburghPA15213 United States

ISBN: (纸本)0818607025

Ulysses is a VLSI CAD environment which effectively addresses the problems associated with CAD tool integration. Specifically, Ulysses allows the integration of CAD tools into a design automation system, the codification of a design methodology, and the representation of a design space. Ulysses keeps track of the progress of a design and allows exploration of the design space. The environment employs artificial intelligence techniques, functions as an interactive expert system, and interprets descriptions of design tasks encoded in the scripts language. An example of an integrated circuit layout design task is provided. The use of Ulysses in performing this task is discussed in detail. © 1986 IEEE.

关键词： Expert systems

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CINNAMON: Coupled integration and nodal analysis of MOs networks

CINNAMON: Coupled integration and nodal analysis of MOs netw...

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23rd ACM/IEEE design Automation Conference, DAC 1986

作者： Vidiga, L.M. Nassif, S.R. Director, S.W. SRC-CMU Center for Computer-Aided Design Department of Electrical and Computer Engineering Carnegie-Mellon University PittsburghPA15213 United States Instituto Superior Tecnico Lisboa Portugal

ISBN: (纸本)0818607025

The use of simulation tools to verify the behavior of integrated circuits is a well established technique for circuit design. This paper describes a novel approach for circuit simulation that promises a significant improvement over conventional methods. The algorithm involves an explicit event driven technique that seems stable even when the accuracy of the solution is relaxed, and is able to perform automatic and dynamic partitioning of the network, thus allowing the full exploitation of latency in large digital networks. Although the basic method could be generalized for any type of circuit, in this paper the scope is limited to MOS integrated circuits. © 1986 IEEE.

关键词： Circuit simulation

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On the Relative Placement and the Transportation Problem for Standard-Cell Layout

On the Relative Placement and the Transportation Problem for...

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design Automation Conference

作者： K.M. Just J.M. Kleinhans F.M. Johannes Institute of Computer-Aided Design Department of Electrical Engineering Technical University Munich Germany Institute of Computer-Aided Design Department of Electrical Engineering Technical University of Munich Spain

关键词： Transportation Wire Topology Circuits design automation Iterative methods Iterative algorithms Very large scale integration Partitioning algorithms Government

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On the relative placement and the transportation problem for standard-cell layout 86

On the relative placement and the transportation problem for...

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Proceedings of the 23rd ACM/IEEE design Automation Conference

作者： Knut M. Just Jürgen M. Kleinhans Frank M. Johannes Institute of Computer-Aided Design Department of Electrical Engineering Technical University of Munich

ISBN: (纸本)9780818607028

A new two-phased method for the simultaneous placement of modules for standard-cell layout is presented. In phase one, a relative placement is calculated by application of an iterative solution method taking advantage of net-list scarcity. A fast algorithm is derived from a new formulation of the problem. In addition, signal weights and pin coordinates are considered. In phase two, different-sized modules are assigned to physical locations by solving a transportation problem.

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CINNAMON: coupled integration and nodal analysis of MOS networks 86

CINNAMON: coupled integration and nodal analysis of MOS netw...

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Proceedings of the 23rd ACM/IEEE design Automation Conference

作者： L. M. Vidigal S. R. Nassif S. W. Director SRC-CMU Center for Computer-Aided Design Department of Electrical and Computer Engineering Carnegie-Mellon University Pittsburgh PA

ISBN: (纸本)9780818607028

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CINNAMON: Coupled Integration and Nodal Analysis of MOS Networks

CINNAMON: Coupled Integration and Nodal Analysis of MOS Netw...

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design Automation Conference

作者： L.M. Vidigal S.R. Nassif S.W. Director SRC CMU Center for Computer-Aided Design Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA USA

关键词： Nonlinear equations Differential equations Circuit simulation Voltage design automation computational modeling MOS integrated circuits Linear approximation Symmetric matrices Circuit synthesis

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VLSI CAD tool integration using the Ulysses environment 86

VLSI CAD tool integration using the Ulysses environment

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Proceedings of the 23rd ACM/IEEE design Automation Conference

作者： Michael L. Bushnell S. W. Director SRC-CMU Research Center for Computer-Aided Design Department of Electrical and Computer Engineering Carnegie-Mellon University Pittsburgh Pennsylvania

ISBN: (纸本)9780818607028

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VLSI CAD Tool Integration Using the Ulysses Environment

VLSI CAD Tool Integration Using the Ulysses Environment

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design Automation Conference

作者： M.L. Bushnell S.W. Director SRC-CMU Research Center for Computer-Aided Design Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA USA

关键词： Very large scale integration design automation Integrated circuit layout Equations Costs Process design Logic design Circuit simulation Control system synthesis Integrated circuit synthesis

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A NEW APPROACH TO THERMAL INTEGRATION OF DISTILLATION SEQUENCES

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CANADIAN JOURNAL OF CHEMICAL engineering 1986年第1期64卷 162-170页

作者： KATTAN, MK DOUGLAS, PL Computer Aided Process Design Laboratory Department of Chemical Engineering Queen's University Kingston Ontario Canada K7L 3N6

This paper describes a new approach for synthesizing thermally integrated distillation sequences. There are two key developments in this research. First, the overall flowsheet is optimized simultaneously as opposed to the traditional technique of optimizing each tower sequentially followed by heat integration. Second, maximum energy recovery techniques are used to estimate the total energy requirements of the thermally integrated network, eliminating the need to synthesize a heat exchanger network on each function evaluation in the optimization routine. A frequently reported five component light alkane system (Rathore's Problem) was used to illustrate this approach. Optimized process flowsheets, energy savings and a comparison with literature values are presented. On dêrit, dans le présent travail, une nouvelle approche pour engendrer des séquences de distillation intégrées thermiquement. Cette recherche comprend deux nouveaux développements principaux. Tout d'abord, le diagramme d'écoulement global est optimisé simultanément, contrairement à la technique traditionnelle comportant l'optimisation de chaque tour séquentiellement, suivie d'une intégration thermique. En second lieu on emploie les techniques de récupération maximale d'énergie pour évaluer les besoins totaux en énergie du réseau intégré thermiquement, éliminant ainsi la nécessité d'introduire un circuit d'échangeurs de chaleur pour l'évaluation de chaque fonction dans la routine d'optimisation. Pour illustrer cette approche, on a employé un système (Problème de Rathore) d'alcanes légers comprenant cinq composants, souvent rapporté dans la littérature. On présente des schémas fonctionnels de precédés optimisés, les économies d'énergie et une comparaison avec des valeurs apparaissant dans la littérature.

关键词： DISTILLATION

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