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Conferences

Ultrasonic Flow Measurement Technolgoy: Prospects for Transfer and Primary Standards

September 1, 1998

Author(s)

Tsyh Tyan Yeh, G E. Mattingly

Charaterization of PFC Emissions from Semiconductor Process Tools

September 1, 1998

Author(s)

David S. Green, J. Meyers

Optical Characterization of Diffuser-Input Standard Irradiance Meters

September 1, 1998

Author(s)

George P. Eppeldauer, M Racz, Thomas C. Larason

Standard quality irradiance meters have been developed at the National Institute of Standards and Technology (NIST) to realize detector based spectral

Numerical Study of Low and High Temperature Silane Combustion

September 1, 1998

Author(s)

Valeri I. Babushok, Wing Tsang, Donald R. Burgess Jr., Michael R. Zachariah

Parallel Kinematic Machine Research at NIST: Past, Present, and Future

September 1, 1998

Author(s)

Albert J. Wavering

Unchained from the confines of controller limitations, the industrial application of parallel kinematic machines in manufacturing is beginning to emerge. The

JAVA-Based Tools for Development and Diagnosis of Real-Time Control Systems

September 1, 1998

Author(s)

William P. Shackleford, Frederick M. Proctor

The National Institute of Standards and Technology (NIST) has been using the Real-time Control System (RCS) Reference Model Architecture for building control

Engineering Intelligent Systems

September 1, 1998

Author(s)

James S. Albus

What is intelligence? Where did it come from? What is its fundamental nature? What are its elemental constituents? Can it be created artificially? If so how

Basic Concepts and Methods for Keeping Autonomous Ground Vehicle Formations

September 1, 1998

Author(s)

Yigal Moscovitz, Nicholas DeClaris

A desirable basic behavior of a group of autonomous vehicles while in motion is to keep a predefined formation. Normally units are trained to move in formation

A New Method of Certifying Standardized Rockwell Hardness Test Blocks

September 1, 1998

Author(s)

Samuel R. Low III, Walter S. Liggett Jr, David J. Pitchure

Rockwell hardness test blocks, whether standardized at the primary national laboratory level or by secondary commercial laboratories, have been certified

Extension of the Standards ISO 10303 (STEP) for the Exchange of Parametric and Variational CAD Models

September 1, 1998

Author(s)

Mike Pratt

The first release of the International Standard STEP (ISO 10303)was made in 1994. It permits the exchange between dissimilar Computer-Aided Design (CAD) systems

Efficient Testing of Electronic Devices

September 1, 1998

Author(s)

T. M. Souders, Gerard N. Stenbakken, Hans Engler

Case Against Optical Gauge Block Metrology

September 1, 1998

Author(s)

Theodore D. Doiron, Dennis S. Everett, Bryon S. Faust, Eric S. Stanfield, John R. Stoup

The current definition of length of a gage block is a very clever attempt to evade the systematic errors associated with the wringing layer thickness and

Application of Microcalorimeter EDS X-Ray Detectors to Particle Analysis

September 1, 1998

Author(s)

Alain C. Diebold, David A. Wollman, Kent D. Irwin, John M. Martinis, B. H. Liu

Mission Structure for an Unmanned Vehicle

September 1, 1998

Author(s)

A Meystel, Yigal Moscovitz, Elena R. Messina

The 4-D/Real-Time Control Systems Architecture (4- D/RCS) defines a hierarchical decomposition for intelligent systems, with corresponding command and control

Kinematic Fixturing with Respect to a Plane Using Contact Sensing

September 1, 1998

Author(s)

Walter W. Nederbragt, Bahram Ravani

This paper presents a method for determining the location of geometric elements that compose the external features of referencing fixtures. Since in most

Towards STEP-Based Data Transfer in Layered Manufacturing

September 1, 1998

Author(s)

D Dutta, Anil Kumar, Mike Pratt, Ram D. Sriram

This paper concerns the informational requirements of layered manufacturing (LM). The most common industrial use of LM today is for rapid prototyping, but we

Design of a Novel Fixture for Part Referencing

September 1, 1998

Author(s)

Walter W. Nederbragt, Bahram Ravani

This paper presents a novel design for a practical tactilesensing mechanical fixture. The fixture consists of two tactilesensing surfaces, a cylindrical surface

Internet-Based Delivery of CAD/CAM Capability: An Industry Case Study

September 1, 1998

Author(s)

Simon Szykman, Ram D. Sriram

This paper presents a case study in the use of the Internet as a medium for exchange of information and delivery of computer-aided design and computer-aided

Minimizing Errors in Phase Change Correction Measurements for Gage Blocks Using a Spherical Contact Techniques

September 1, 1998

Author(s)

John R. Stoup, Bryon S. Faust, Theodore D. Doiron

One of the most elusive measurement elements in gage block interferometry is the correction for the phase change on reflection. Techniques used to quantify this

Accurate Polarization Dependent Loss Measurement and Calibration Standard Development

September 1, 1998

Author(s)

Rex M. Craig, Sarah L. Gilbert, Paul D. Hale

Are the Formulas for Mode-Field Diameter Correct?

September 1, 1998

Author(s)

Ronald C. Wittmann, M. Young

We have found conceptual problems with the far-field formula 1 for mode field diameter First, the formulation is incomplete in that it ignores the obliquity

Biased Perturbation Method for Index Profiling Single-Mode Fibers from Near-Field and Far-Field Data

September 1, 1998

Author(s)

N. H. Fontaine, M. Young

We have developed a biased perturbation method for calculating the index profiles of single-mode fibers from either near-field or far-field data. Unlike other

A Comparison of Differential Mode Delay Measurements on Multimode Fibers in the Time and Frequency Domains Brackets Indicate omission in Final Paper

September 1, 1998

Author(s)

John B. Schlager, Douglas L. Franzen

Multimode fiber bandwidth is currently measured using an overfilled launch condition. Such a launch is achieved by uniformly exciting the core and launching

Narrowband Measurements of Polarization-Mode Dispersion Using the Modulation Phase Shift Technique

September 1, 1998

Author(s)

Paul A. Williams, A. J. Barlow, C. Mackechnie, John B. Schlager

A common characteristic of current methods for measuring polarization-mode dispersion (PMD) is the need for a broad optical bandwidth. With the increasing use

The Applicability of Nonlinear Melt Rheology Concepts to the Nonlinear Solid Rheology of DGEBA/m-PDA Epoxy Resin in the Glassy Region

August 31, 1998

Author(s)

Gale A. Holmes, R C. Peterson, Donald L. Hunston, Walter G. McDonough

Most ductile polymers exhibit nonlinear viscoelastic behavior above 1% strain. In structural applications where matrix deformation may play and important role

An Indirect Comparison Between Two Josephson Voltage Standard Systems With Different Algorithms

August 25, 1998

Author(s)

Yi-hua D. Tang, Richard L. Steiner, June E. Sims

Two Josephson Array Voltage Standard Systems using different calibration algorithms are operated at the National Institute of Standards and Technology. A manual

A VRML Integration Methodology for Manufacturing Applications

August 24, 1998

Author(s)

Sanford P. Ressler, Afzal A. Godil, Quandou (. Wang, G S. Seidman

This paper describes several methods for using the Virtual Reality Modeling Language (VRML) as the visualization integration tech-nology for manufacturing

Reliability of Conformance Tests

August 21, 1998

Author(s)

Robert C. Hagwood, Raghu N. Kacker, James H. Yen, D L. Banks, Lynne S. Rosenthal, Leonard J. Gallagher, Paul E. Black

A conformance test is a software assurance test that is applied in order to determine if specification requirements of the software are being met. It is a time

NIST Atomic Spectra Database (1998)

August 13, 1998

Author(s)

Daniel E. Kelleher, William C. Martin, Wolfgang L. Wiese, J Sugar, Craig J. Sansonetti, Jeffrey R. Fuhr, Joseph Reader, Arlene Musgrove, Karen J. Olsen, Peter J. Mohr, G R. Dalton

Interface Morphology During Crystal Growth: Effects of Anisotropy and Fluid Flow

August 12, 1998

Author(s)

Sam R. Coriell, B T. Murray, A A. Chernov, Geoffrey B. McFadden

We treat the effect of shear flows on the morphological stability of a crystal growing from solution by a step mechanism at a given constant velocity. We carry

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