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Search Publications by: Ram D. Sriram (Fed)

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Displaying 101 - 125 of 155

Data Standards for Proteomics: Mitochondrial Two-Dimensional Polyacrylamide Gel Electrophoresis Data as a Model System

May 1, 2004
Author(s)
Veerasamy Ravichandran, G B. Vasquez, S Srivastava, M Verma, E Petricoin, Joshua Lubell, Ram D. Sriram, Peter E. Barker, G L. Gilliland
The advent of human proteomics as a major discipline has led to a reexamination of the need for consensus and a nationally sanctioned set of proteomics technology standards. Such standards for databases and data reporting may be applied to Two-Dimensional

Beyond Geometry: Issues in Product Representation

April 1, 2004
Author(s)
Ram D. Sriram
Slides presented at the Innovative Design of Complex Aerospace Systems Workshop at held at the NASA Langley Research Center in Hampton, Virginia, on March 24, 2004.

Role of Empirical Studies Understanding and Supporting Engineering Design

April 1, 2004
Author(s)
Eswaran Subrahmanian, Ram D. Sriram, Paulien Herder, Henri Christiaans, Ralph Schneider
Study of design and norms for designing dates back 2000 years when Vitruvious first wrote his book on architectural design and prescribed what a designer ought to know and how he/she ought to behave. The perceived need to organize and systematize design

Advanced Engineering Environments for Small Manufacturing Enterprises: Volume II

February 1, 2004
Author(s)
Steven J. Fenves, Ram D. Sriram, Young Choi, J P. Elm, J E. Robert
To assist the Small Manufacturing Enterprise (SME) in adopting Advanced Engineering Environments (AEEs), this report provides two self-assessment tools; the Self Assessment Tool for Engineering Environments (SAT-EE) to assist an SME in assessing the

Evaluation and Selection in Product Design for Mass Customization

January 1, 2004
Author(s)
XuanFang Zha, Ram D. Sriram, W F. Lu, Fujun Wang
Mass customization has been identified as a competitive strategy by an increasing number of companies. Family-based product design has been recognized as an efficient and effective means to realize sufficient product variety to satisfy a range of customer

Object-Oriented Representation of Electro-Mechanical Assemblies Using UML

January 1, 2004
Author(s)
Sudarsan Rachuri, Y H. Han, Shaw C. Feng, Utpal Roy, Fujun Wang, Ram D. Sriram, Kevin W. Lyons
The important issue of mechanical assemblies has been a subject of intense research over the past several years. Most electromechanical products are assemblies of several components, for various technical as well as economic reasons. This report provides

Ongoing Development of Two-Dimensional Polyacrylamide Gel Electrophoresis Data Standards

January 1, 2004
Author(s)
Veerasamy Ravichandran, Joshua Lubell, G B. Vasquez, P Lemkin, Ram D. Sriram, G L. Gilliland
As the amount of proteomics data in the public databases grow, the volume of information available to the scientific community is constantly increasing and diversifying. Two-Dimensional Polyacrylamide Gel Electrophoresis (2-D PAGE) is a common method used

Advanced Engineering Environments for Small Manufacturing Enterprises: Volume I

October 1, 2003
Author(s)
Steven J. Fenves, Ram D. Sriram, Young Choi, J E. Robert
Advanced engineering environments (AEEs) are computational and communications systems that can create virtual and/or distributed environments linking researchers, technologists, designers, manufacturers, suppliers, and customers, providing for the orderly

Knowledge Intensive Collaborative Decision Support for Design Process

September 1, 2003
Author(s)
XuanFang Zha, Ram D. Sriram, W F. Lu
Engineering design is essentially a collaborative decision making process that requires rigorous evaluation, comparison and selection of design alternatives and optimization from a global perspective on the basis of different classes of design criteria

Process Specification Language for Project Information Exchange

August 1, 2003
Author(s)
Michael Gruninger, Ram D. Sriram, J. Cheng, K Law
There are many project scheduling and management programs employed in the construction industry. Standards-based translation is one way to achieve interoperability. This study discusses the applicability of the Process Specification Language (PSL) for

A Product Information Modeling Framework For Product Lifecycle Management

June 1, 2003
Author(s)
Steven J. Fenves, Ram D. Sriram, Sudarsan Rachuri, Fujun Wang
We describe a framework for representing products based on the NIST Core Product Model (CPM) and its extensions, the Open Assembly Model (OAM), the Design-Analysis Integration model (DAIM), and the Product Family Evolution Model (PFEM). These are abstract

Functional Tolerancing of a Gearbox

June 1, 2003
Author(s)
H Wang, Utpal Roy, Sudarsan Rachuri, Ram D. Sriram, Kevin W. Lyons
This paper proposes a scheme for the tolerance specification that uses the features? function information and mating condition attributes in the assembly to derive an appropriate tolerance specification as per the design intents. The proposed mirror method

Tolerance Synthesis Scheme

June 1, 2003
Author(s)
Utpal Roy, N Pramanik, Sudarsan Rachuri, Ram D. Sriram, Kevin W. Lyons
The objective of this report is to identify representations and issues for the generic assembly information model and its use in a proactive tolerance synthesis scheme. It is proposed to use the small displacement torsors (the screw parameters) as a

Towards Modeling the Evolution of Product Families

June 1, 2003
Author(s)
Fujun Wang, Steven J. Fenves, Sudarsan Rachuri, Ram D. Sriram
A strategy successfully used by manufacturing companies is to develop product families so as to offer a variety of products with reduced development costs. This paper introduces our initial research on the representation of the evolution of product

A Decomposition-Based Approach to Layered Manufacturing

June 1, 2002
Author(s)
I Llinkin, R Janardan, J J. Majhi, J Schwerdt, Miles E. Smid, Ram D. Sriram
This paper introduces a new approach for improving the performance and versatility of Layered Manufacturing (LM), which is an emerging technology that makes it possible to build physical prototypes of 3D parts directly from their computer models using a