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Aging in Digital Circuits and Age Monitoring: object-oriented modeling and Evaluation (Special Session on Evolving Design Languages and Methodologies) 10

Aging in Digital Circuits and Age Monitoring: Object-Oriente...

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10th IEEE International Conference on Design and Technology of Integrated Systems in Nanoscale Era (DTIS)

作者： Sadeghi-Kohan, Somayeh Kamran, Arezoo Forooghifar, Farnaz Navabi, Zainalabedin Univ Tehran Sch Elect & Comp Engn Tehran Iran

ISBN: (纸本)9781479919994

Transistor and interconnect wearout is accelerated with transistor scaling resulting in timing variations and consequently reliability challenges in digital circuits. Age monitoring methods can be used to predict and deal with the aging problem. Selecting appropriate locations for placement of hardware aging monitors is an important issue. In this work we propose a procedure for selection of appropriate internal nodes in combinational clouds between pipeline stages or combinational parts of a sequential circuit to place hardware monitors that can effectively provide aging information of various components of a modern digital system. In order to implement the node selection procedure, we propose an object oriented model. object-oriented model of a circuit along with a probabilistic and logical simulation engine that we have developed can effectively be used for implementation and also fast evaluation of the proposed node selection mechanism. The proposed object-oriented C++ models can be integrated into a SystemC RTL model making it possible to perform mixed-level simulation, and integrated evaluation of a complete system. We have applied our proposed scheme to several processors including MIPS, ARM, ALPHA cmd MiniRISC and have looked at its effectiveness for these processors.

关键词： age monitoring aging phenomena internal node selection object-oriented modeling probabilistic simulation mixed-level simulation

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Management of technology: A case for an object-oriented modeling approach

Management of technology: A case for an object-oriented mode...

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Portland International Conference on Management of Engineering and Technology (PICMET 97)

作者： Chandra, C LOS ALAMOS NATL LAB POB 1663LOS ALAMOSNM 87545 USA

ISBN: (纸本)0780335740

Management of technologies with conflicting objectives requires managing complexity attributed to these objectives. An integrated system framework with information modeling using object-oriented paradigm, is proposed for managing technological complexity in the enterprise. This integrated approach to addressing interdependent technology issue's contrasts with commonly prescribed piecemeal prescriptive solutions.

关键词： management of technology (MOT) object-oriented modeling enterprise modeling enterprise complexity modeling

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object-oriented modeling: Tools and Techniques for Capturing Properties of Physical Systems in Computer Code 1

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IFAC Proceedings Volumes 1991年第4期24卷 1-10页

作者： F.E. Cellier B.P. Zeigler A.H. Cutler Department of Electrical and Computer Engineering The University of Arizona Tucson AZ 85721 USA Space Engineering Research Center The University of Arizona Tucson AZ 85721 USA

Mathematical modeling means the formal encoding of knowledge about a dynamical system. Knowledge can be grouped into behavioral knowledge and structural knowledge. Behavioral knowledge is local knowledge relating to a particular experiment applied to a system or model. Behavioral knowledge is what is generated in a real-world experiment or during a simulation run. Structural knowledge is global knowledge relating to a system or model, irrespective of the experiment that is performed. A model is a formal encoding of structural knowledge of a system. Structural knowledge can be further decomposed into functional knowledge, coupling knowledge, decomposition knowledge, and taxonomic knowledge. In this paper, a methodology is presented that helps to organize the structural knowledge about a system to be described. It enables to encode separately and in an organized fashion functional, coupling, decomposition, and taxonomic knowledge about a system. The methodology lends itself to the implementation of automated procedures for deductive as well as inductive model synthesis necessary for the realization of high-autonomy intelligent control systems. A fairly involved example concludes the paper

关键词： Artificial intelligence decentralized control event-based control failure detection intelligent machines knowledge abstraction model synthesis object-oriented modeling process control time-windows

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Architecture of an object-oriented modeling Framework for Human Occupation 9th

Architecture of an Object-Oriented Modeling Framework for Hu...

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9th International Conference on Swarm Intelligence (ICSI)

作者： Balaguera, Manuel-Ignacio Vargas, Maria-Cristina Lis-Gutierrez, Jenny-Paola Viloria, Amelec Elena Malagon, Luz Fdn Univ Konrad Lorenz Bogota Colombia Escuela Colombiana Rehabilitac Bogota Colombia Univ Costa Barranquilla Colombia Corp Univ Meta Villavicencio Colombia

ISBN: (纸本)9783319938189;9783319938172

The limitations of the actual theoretical structure of occupational science are discussed emphasizing on its implications when dealing with the stability and sustainability of social systems. By using a literature review focused on the time evolution and disciplinary distribution of the scientific production about human occupation, it is verified the insufficient production leading to the development of models that facilitate quantitative reasoning to support decision making. As an alternative, the architecture of an object-oriented framework is proposed. The framework is presented by using an UML (Unified modeling Language) class diagram of a generic occupational system, including the class model of each system's component: attributes and behaviors. Finally, guidelines are given for the use of the models produced with the framework in simulating diverse occupation systems scenarios.

关键词： Human occupation Occupational science Occupational system Complexity Complex system modeling framework object-oriented modeling

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object-oriented modeling framework for integration of computer applications in structural engineering

Journal of Structural Engineering (Madras)

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Journal of Structural Engineering (Madras) 2007年第6期33卷 465-477页

作者： Appa, Rao, T.V.S.R. Nowshad, Mohammed, C. Structural Engineering Research Centre Chennai - 600113 India

Computer applications in different areas of structural engineering such as analysis, design, construction and project management are mostly written in procedure-oriented languages and they are presently fragmented in nature. It is well-recognised that use of integrated computer applications would lead to saving in time and cost in design and construction of structures and infrastructural facilities. Vigorous efforts are being made world-wide to develop methodologies for integration by making use of latest developments in Information and Communication Technologies (ICT) such as object-oriented modeling, information/data exchange standards, integrated data bases, 3-D/4-D modeling, virtual reality, network and world-wide web. object-oriented modeling is being used in all these technologies to facilitate integration and extensibility. The paper presents an object-oriented framework for integrating legacy computer applications in structural engineering. Details of an object-oriented model for integrating legacy computer applications of analysis and design of RC frames are presented by using the Unified modeling Language (UML) and the Case Tool : Rational Rose. Working of the OO model has been demonstrated with an example of implementation of integration of legacy structural analysis and design programs for design of an RC frame.

关键词： Information and communication technologies object-oriented modeling Project management Structures Unified modeling language

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HOW ONE CAN INTRODUCE COMPLIANCE INTO COMPUTER MODELS OF THE MULTIBODY DYNAMICS USING FEATURES OF object-oriented modeling 7

HOW ONE CAN INTRODUCE COMPLIANCE INTO COMPUTER MODELS OF THE...

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7th International Conference on Coupled Problems in Science and Engineering (COUPLED PROBLEMS)

作者： Kosenko, Ivan I. Stavrovskiy, Mikhail E. Moscow Aviat Inst Natl Res Univ Volokolamskoe Shosse 4 Moscow 125993 Russia Res Ctr Problems Management Resource Saving & Was Olymp Ave 42 Mytishi 141006 Moscow Region Russia

ISBN: (纸本)9788494690921

Dynamics of a multibody system is simulated in a most universal way in case of contacts having a compliance property. This latter case is implemented usually by elasticity / viscosity along the direction normal to the rigid body outer / inner surface and by friction along its tangent direction. The Hertz model is one of the most popular elastic contact models for engineering applications. object-oriented approach for building up the multibody dynamics model simulating compliant contacts is under development in this paper. A technology for constructing classes-templates is applied to build up contact objects in the dynamical model. The Hertz contact model is under consideration as a simplest example.

关键词： object-oriented modeling bond graphs mechanical constraint the Hertz contact model ball bearing model contact tracking algorithm

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The research on representation and processing of process knowledge based on object-oriented modeling

The research on representation and processing of process kno...

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International Conference on Machine Learning and Cybernetics

作者： Jia, XL Xu, JX Zhang, ZM Huang, NK Northwestern Polytech Univ Inst CAPP & Mfg Automat Xian 710072 Peoples R China

ISBN: (纸本)0780378652

Process planning involves wide application domain, enormous information and knowledge. The systematic representation of process knowledge and the foundation of process knowledge base are not only the basic of CAPP (computer aided process planning) intelligence, but also have great importance to intelligent manufacturing and advanced manufacturing. Based on the development of a CAPP system (CAPP Framework) supported by 863/CIMS in China, object-oriented modeling technology and systematic analyzing of process knowledge, object-oriented process knowledge representation and process knowledge acquisition are described in detail.

关键词： computer aided process planning (CAPP) object-oriented modeling process knowledge representation process knowledge acquisition process knowledge processing

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object-oriented modeling of Machine Tool Feed Axes: an Approach to Analysis of Control Parameters

Object-oriented Modeling of Machine Tool Feed Axes: an Appro...

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IEEE International Conference on Mechatronics and Automation

作者： Yi Xie Denis Ozdemir Werner Herfs Dept. of Mech. Eng. Tsinghua Univ. Beijing China

ISBN: (纸本)9781479970995

Feed drives are one of the most important parts of machine tools. Their static and dynamic behavior strongly influences the positioning accuracy and their speed determines productivity. The control parameters play a decisive role concerning the performance of the mechatronic system and for control analysis,a sufficient model of the feed drive system is necessary. This paper demonstrates the structure of a feed drive system using object-oriented modeling in MATLAB/ SIMSCAPE?. The model is validated by comparing simulation with measured results for the example of a precision machining center. The modeling methodology of feed drives illustrated in this paper provides a tool,which enables engineers to analyze and optimize the control parameters in the machine tool design phase.

关键词： object-oriented modeling Mechatronic system Machine tool

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object-oriented modeling in the Service of Medicine

Object-oriented Modeling in the Service of Medicine

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Asian Simulation Conference/The 6th International conference on system Simulation and Scientific Computing

作者： Fran■ois E. Cellier ■ngela Nebot Institute of Computational Science ETH Zurich CH-8092 Zurich Switzerland Llenguatges i Sistemes Informàtics Universitat Politècnica de Catalunya Barcelona 08034 Spain

The models employed in all aspects of science and engineering have grown increasingly complex, in order to allow them to capture more and more details of the systems that they are representing. Unfortunately, the increased complexity makes these models more difficult to maintain and harder to understand. Especially in a domain, such as medicine, with domain experts, who possess rather limited mathematical skills in general, the complexity of advanced models has become problematic, as these experts no longer are capable of fully understanding and criticizing these models. The object-oriented modeling paradigm offers a means to increase the overall model complexity, thereby enhancing the realism of its simulations, without making these models more difficult to understand or maintain than the simple toy models of the past. In this paper, the approach is demonstrated by means of a fairly elaborate model of human hemodynamics.

关键词： bond graph modeling object-oriented modeling graphical modeling cardiovascular system hemodynamics

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object-oriented modeling and Automated Analysis of a Telemedicine Application 00

Object-Oriented Modeling and Automated Analysis of a Telemed...

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Proceedings of the 10th International Workshop on Software Specification and Design

作者： Laura A. Campbell y Betty H. C. Cheng Michigan State University 3115 Engineering Building East Lansing MI

ISBN: (纸本)9780769508849

As the impact of and demand for software increases, there is greater need for rigorous software development techniques that can be used by a typical software engineer. We have added formal syntax and semantics definitions to an existing object-oriented modeling notation in order to integrate informal and formal approaches to software development. This formalization enables developers to construct object-oriented models of requirements and designs and then automatically generate formal specifications for the diagrams. These formal specifications enable the diagrams to be analyzed by a number of existing automated reasoning utilities, including behavior simulators, model checkers, and rewriting systems.

关键词： design process automated analysis formal specifications object-oriented modeling simulation

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