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Search Publications by: Ram D. Sriram (Fed)

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Displaying 26 - 50 of 155

A Semantic Product Modeling Framework and Its Application for Behavior Evaluation

January 9, 2012
Author(s)
Jae H. Lee, Steven J. Fenves, Conrad E. Bock, Sudarsan Rachuri, Hyo-Won Suh, Xenia Fiorentini, Ram D. Sriram
Supporting different stakeholder viewpoints across the product’s entire lifecycle requires semantic richness to represent product related information and thus enable multi-view engineering simulations. This paper proposes a multi-level product modeling

NIST Workshop on Ontology Evaluation (NISTIR 7774)

April 1, 2011
Author(s)
Ram D. Sriram, Conrad E. Bock, Fabian M. Neuhaus, Evan K. Wallace, Mary C. Brady, Mark Musen, Joanne Luciano
The National Institute for Standards and Technology sponsored a workshop in October, 2007, on the subject of ontology evaluation. An international group of invited experts met for two days to discuss problems in measuring ontology quality. The workshop

Toward Energy Efficient Manufacturing Enterprises

February 2, 2011
Author(s)
Kevin W. Lyons, Alexander Weissman, Ram D. Sriram, Lalit Chordia
Industrial enterprises have significant negative impacts on the global environment. Collectively, from energy consumption to greenhouse gases to solid waste, they are the single largest contributor to a growing number of planet-threatening environmental

Modeling, Simulation and Analysis for Sustainable Product Development

November 17, 2010
Author(s)
Mahesh Mani, Bjoern J. Johansson, Kevin W. Lyons, Ram D. Sriram, Gaurav Ameta
Simulation plays a critical role in the design of products, materials and manufacturing processes. Increasingly, simulation is replacing physical tests to ensure product reliability and quality thereby facilitating steady reductions in design cycles

OntoSTEP: Enriching Product Model Data Using Ontologies

August 31, 2010
Author(s)
Raphael Barbau, Sylvere I. Krima, Xenia Fiorentini, Sudarsan Rachuri, Anantha Narayanan Narayanan, Sebti Foufou, Ram D. Sriram
The representation and management of product lifecycle information is critical to the success of any manufacturing organization. Different modeling languages are adopted to represent different product information, for example EXPRESS for geometry as seen

Summary of the NIST Workshop on Sustainable Manufacturing: Metrics, Standards, and Infrastructure

August 31, 2010
Author(s)
Sudarsan Rachuri, Ram D. Sriram, Anantha Narayanan Narayanan, Prabir Sarkar, Jae H. Lee, Kevin W. Lyons, Vijay Srinivasan, Sharon J. Kemmerer
This paper summarizes the presentations, discussions, and recommendations of the NIST Workshop Sustainable Manufacturing: Metrics, Standards, and Infrastructure held at NIST, Gaithersburg, Maryland, USA, October 13th through October 15th, 2009. The primary

Modeling and Monitoring of Construction Supply Chains

August 1, 2010
Author(s)
Jack C. Cheng, Kincho H. Law, Hans Bjornsson, Albert T. Jones, Ram D. Sriram
The planning and management of supply chains require properly specifying the participating members and the relationships among them. Construction supply chains usually consist of numerous participants and are complex in structure. Representing construction

Sustainable Manufacturing: Metrics, Standards, and Infrastructure - Workshop Summary

May 31, 2010
Author(s)
Sudarsan Rachuri, Ram D. Sriram, Anantha Narayanan Narayanan, Prabir Sarkar, Jae H. Lee, Kevin W. Lyons, Sharon J. Kemmerer
This report summarizes the presentations, discussions, and recommendations of the NIST Workshop Sustainable Manufacturing: Metrics, Standards, and Infrastructure held at NIST, Gaithersburg, Maryland, USA, October 13th through October 15th, 2009. The

Product Modeling Framework and Language for Behavior Evaluation

May 2, 2010
Author(s)
Jae H. Lee, Steven J. Fenves, Conrad E. Bock, Hyo Won Suh, Sudarsan Rachuri, Xenia Fiorentini, Ram D. Sriram
Supporting different stakeholder viewpoints across the product s entire lifecycle requires semantic richness for representing product related information. This paper proposes a multi-layered product-modeling framework that enables stakeholders to define

Sustainable Manufacturing: Metrics, Standards, and Infrastructure - NIST Workshop Report

April 21, 2010
Author(s)
Sudarsan Rachuri, Jae H. Lee, Anantha Narayanan Narayanan, Prabir Sarkar, Kevin W. Lyons, Ram D. Sriram, Sharon J. Kemmerer
This report summarizes the presentations, discussions and recommendations of NIST Workshop on Sustainable Manufacturing: Metrics, Standards, and Infrastructure held at NIST, USA, on October 13th through October 15th, 2009. The primary objective of this

A Semantic Product Modeling Framework and Language for Behavior Evaluation

April 8, 2010
Author(s)
Jae H. Lee, Hyo Won Suh, Steven J. Fenves, Sudarsan Rachuri, Xenia Fiorentini, Ram D. Sriram, Conrad E. Bock
Supporting different stakeholder viewpoints across the product's entire lifecycle requires semantic richness for representing product related information. This paper proposes a multi-layered product modeling framework that enables stakeholders to define

NETWORK-CENTRIC PRODUCT REALIZATION AND THE ROLE OF STANDARDS

February 18, 2010
Author(s)
Ram D. Sriram, Albert W. Jones, Mahesh Mani, Sudarsan Rachuri, Eswaran Subrahmanian
The early part of this millennium has witnessed the emergence of an Internet-based engineering marketplace. Here, engineers, designers, and manufacturers from small and large companies can collaborate electronically in various product development and

Carbon Weight Analysis for Machining Operation and Allocation for Redesign

December 16, 2009
Author(s)
Gaurav Ameta, Mahesh Mani, Sudarsan Rachuri, Kevin W. Lyons, Shaw C. Feng, Ram D. Sriram
The objective of this research is to explore and develop a new methodology for computing carbon weight (CW) - often referred to as carbon footprint, in manufacturing processes from the part level to assembly level. In this initial study we focused on

A Service Oriented Framework for Construction Supply Chain Integration

October 1, 2009
Author(s)
Jack Cheng, Kincho H. Law, Albert T. Jones, Ram D. Sriram
Supply chain management integrates key business processes and facilities, involving end users and suppliers that provide products, services and information. Supply chain integration can potentially add value to the stakeholders along product development

Formal Representation of Product Design Specifications for Validating Product Designs

August 27, 2009
Author(s)
Alex Weissman, Satyandra K. Gupta, Xenia Fiorentini, Sudarsan Rachuri, Ram D. Sriram
Large scale distributed design projects increasingly result in designs that do not fully conform to the stated design goals or specifications. Hence, there is a need to validate these designs against various requirements. For projects with a large set of

Towards a Method for Harmonizing Information Standards

August 19, 2009
Author(s)
Xenia Fiorentini, Sudarsan Rachuri, Steven R. Ray, Ram D. Sriram
Designers and engineers use various engineering authoring tools, such as CAD, CAE, and PDM,, to generate information objects (engineering objects). On the business side, enterprise level business process modelers use various business authoring tools, such

Environmental impact of manufactured products: A measure inspired by nature

July 10, 2009
Author(s)
Prabir Sarkar, Sudarsan Rachuri, Hyo Won Suh, Kevin W. Lyons, Ram D. Sriram
Environmental impacts of products are generally determined by using criteria or indicators. There are many criteria or indicators available and during design selecting some of them and assigning weight is difficult. As natural systems are considered to be

A Measure of Product Sustainability Based on Triple Bottom Line

June 15, 2009
Author(s)
Prabir Sarkar, Sudarsan Rachuri, Hyo Won Suh, Kevin W. Lyons, Ram D. Sriram
Sustainable societies require the use of sustainable products. Sustainability is generally expressed in terms of Triple Bottom Line (TBL) - people, planet, and profit. Products that are sustainable have positive effects and value for all the stakeholders

OntoSTEP: OWL-DL Ontology for STEP

June 15, 2009
Author(s)
Sylvere Krima, Raphael Barbau, Xenia Fiorentini, Sudarsan Rachuri, sebti foufou, Ram D. Sriram
The Standard for the Exchange of Product model data (STEP) [1] contains product information mainly related to geometry. The modeling language used to develop this standard, EXPRESS, does not have logical formalism that will enable rigorous semantics. In

Service Oriented and Orchestrated Framework for Supply Chain Integration

June 8, 2009
Author(s)
Jack C.P. Cheng, Kincho H. Law, Albert T. Jones, Ram D. Sriram
Supply chain management integrates key business processes and facilities, involving end users and suppliers that provide products, services and information. Supply chain integration can potentially add value to the stakeholders along product development

OntoSTEP: OWL-DL Ontology for STEP

May 4, 2009
Author(s)
Sylvere Krima, Raphael Barbau, Xenia Fiorentini, Sudarsan Rachuri, Ram D. Sriram
The Standard for the Exchange of Product model data (STEP) [1] contains product information mainly related to geometry. The modeling language used to develop this standard, EXPRESS, does not have logical formalism that will enable rigorous semantics. In