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Conferences

Microwave Detection of Stress Induced Farigue Cracks in Steel and Potential of Crack Opening Determination Using a New Phase Sensitive Approach Based on a Waveguide Magic TEE

July 1, 2000

Author(s)

N Qaddoumi, E Ranu, R Zoughi, Joseph D. McColskey

Detection and evaluation of surface cracks in metals is an important facet of nondestructive testing and evaluation (NDT&E). Cracks in bridges, aircraft wings

Representation of Heterogeneous Objects in ISO 10303 (STEP)

July 1, 2000

Author(s)

Lalit Patil, D Dutta, Amba D. Bhatt, Kevin K. Jurrens, Kevin W. Lyons, Mike Pratt, Ram D. Sriram

Solid modeling of objects forms an important task in design and manufacturing. Recent developments in the field of layered manufacturing have shown potential

A Nanocomposite Poly(Methyl-Methacrylate) Bone Cement

July 1, 2000

Author(s)

A H. Gomoll, A Bellare, W Fitz, T S. Thornhill, R D. Scott, P R. Jemian, Gabrielle G. Long

Poly(methyl methacrylate) (PMMA) based orthopaedic bone cements contain 1-3 micro υ size radiopacifier particles. Incomplete dispersion of these particles leads

Performance of Precast Concrete Shear Walls

July 1, 2000

Author(s)

A E. Schultz, Geraldine Cheok, R A. Magana

An experimental program is undertaken to enhance the knowledge base regarding seismic design of precast concrete shear walls. The emulation design and jointed

1-cm Collimated Source for Use in Infrared Calibrations

July 1, 2000

Author(s)

Beverly Klemme, Timothy M. Jung, Adriaan C. Carter, Eric L. Shirley, Steven R. Lorentz, Raju V. Datla

A 1 cm collimated source has been developed and tested for calibration of detectors in the 2 m to 8 m range. This source will be used to calibrate the Transfer

Semi-Active Control of Linear and Hysteretic Structures Using Variable Viscous and Magnetorheological Dampers

July 1, 2000

Author(s)

S El-Borgi, Michael A. Riley, Fahim H. Sadek, N Ayed

Numerous studies have been conducted so far on active or hybrid (active/passive) control of hysteretic structures using a wide range of linear and nonlinear

Splicing Together Size Distributions to Increase the Size Range of a Phase Doppler Interferometer

July 1, 2000

Author(s)

J F. Widmann, S R. Charagundla, Cary Presser, Stefan D. Leigh

A phase Doppler interferometer (PDI) was used to measure the intensity (i.e., the expected number of droplets measured per unit time) of a swirling methanol

Measurement Assurance Program for an Intercomparison of Josephson Voltage Standards between NIST and Lockheed Martin Astronautics

July 1, 2000

Author(s)

W. Wyatt Miller, Yi-hua D. Tang

An intercomparison of 10 V Josephson voltage standards (JVS) between NIST and Lockheed Martin Astronautics (LMA) using four travelling Zener standards will be

Automatic Generation of Simulation Models from Neutral Libraries: An Example

July 1, 2000

Author(s)

Albert T. Jones, R A. Wysk, Y J. Son

Researchers at the National Institute of Standards and Technology have proposed the development of neutral libraries of simulation components. The availability

Evaluation of Standards for a 10 V MAP Service at NIST

July 1, 2000

Author(s)

Yi-hua D. Tang, June E. Sims

A Measurement Assurance Program (MAP) provides a method of assessing and maintaining the quality of a measurement process. Such a program has two parts: the

Architecture for Modeling and Simulation of Global Distributed Enterprises

July 1, 2000

Author(s)

Charles R. McLean, Swee K. Leong, Frank H. Riddick

This paper presents an overview of a neutral reference architecture for integrating distributed manufacturing simulation systems with each other, with other

Time-Base Setting Dependence of Pulse Parameters Using High-bandwidth Digital Sampling Oscilloscopes

July 1, 2000

Author(s)

Nicholas Paulter, Donald R. Larson

Errors in the time-base of digital sampling oscilloscopes (samplers) will cause errors in the reported pulse parameters of the sampler-acquired waveforms and

Representing an Artifact Transport System in a Design Repository: A Case Study

July 1, 2000

Author(s)

Robert Allen, Ram D. Sriram, Simon Szykman, Robert J. Fijol

We report on a case study representing the design essence of a prototype ultra-high vacuum artifact transport system (ATS) in an existing design repository (DR)

Temperature Effects on the High Speed Response of Digitizing Sampling Oscilloscopes

July 1, 2000

Author(s)

Donald R. Larson, Nicholas Paulter

We describe the effects of temperature on the performance of 20 GHz and 50 GHz digital sampling oscilloscopes and high speed pulse generators. The temperature

Mining Usability Information from Log Files: A Multi-Pronged Approach

July 1, 2000

Author(s)

Michelle P. Steves, Emile L. Morse

This is a position paper for a workshop concerned with issues and experiences surrounding logged data for on-line communities. We briefly describe relevant

SIMnet: An Internet-Based Video Conferencing System Supporting Metrology

July 1, 2000

Author(s)

William E. Anderson, Nile M. Oldham, Mark E. Parker

SIMnet is a computer network implemented in 1999 to facilitate international comparisons, and foster collaborations between national metrology laboratories in

Cost and Process Information Modeling for Dry Machining

July 1, 2000

Author(s)

Shaw C. Feng, M Hattori

The cost of using coolant in machining industry world-wide is very high. Through a literature survey, it costs multi-billion dollars for coolant acquisition and

Internet-Based Calibration of a Multifunction Calibrator

July 1, 2000

Author(s)

L. B. Baca, L. Duda, R. J. Walker, Nile M. Oldham, Mark E. Parker

Information Modeling on Conceptual Process Planning Integrated with Conceptual Design

July 1, 2000

Author(s)

Shaw C. Feng, Eugene Song

Conceptual process planning is a key activity for designers to evaluate manufacturability and manufacturing cost and time in the early product development stage

Broadband Ac-dc Difference Calibrations of Current Shunts up to 100 A at NIST

July 1, 2000

Author(s)

Joseph R. Kinard Jr., Thomas E. Lipe Jr., Clifton B. Childers, Owen B. Laug, Jon R. Pratt

NIST is now offering broadband, ac-dc difference calibrations of current shunts from 3 A to 100 A, and at frequencies up to 30 kHz, as special tests. We present

CollabLogger: A Tool for Visualizing Groups at Work

July 1, 2000

Author(s)

Michelle P. Steves, Emile L. Morse

The CollabLogger is a visual tool that has been developed to support usability analyses of human-computer interaction in a team environment. The participants in

Low-Frequency Impedance Calibrations at NIST

July 1, 2000

Author(s)

Andrew D. Koffman, Yui-May Chang

This paper presents an overview of the low-frequency impedance measurement services offered through the Impedance Calibration Laboratory (ICL) at the National

Integration of Manufacturing Simulations Using High Level Architecture (HLA)

July 1, 2000

Author(s)

Charles R. McLean, Swee K. Leong, Frank H. Riddick

This paper presents an overview of a neutral reference architecture for integrating distributed manufacturing simulation systems with each other, with other

Measuring Interface Strength in Single Fiber Composites: The Effect of Stress Concentrations

July 1, 2000

Author(s)

Gale A. Holmes, R C. Peterson

Fiber-matrix interface strength is known to be a critical factor in controlling the long-term performance of structural composites. This parameter is often

AlGaAs Composition Measurements from In Situ Optical Reflectance

July 1, 2000

Author(s)

Kristine A. Bertness, J T. Armstrong, Ryna B. Marinenko, Larry Robins, Albert J. Paul, Joseph G. Pellegrino, Paul M. Amirtharaj, Deane Chandler-Horowitz

We measure the composition of AlGaAs layers during epitaxial crystal growth using in situ normal-incidence optical reflectance supported by independent methods

Evaluating Evaluation Measure Stability

July 1, 2000

Author(s)

C E. Buckley, Ellen M. Voorhees

This paper presents a novel way of examining the accuracy of the evaluation measures commonly used in information retrieval experiments. It validates several of

Image Processing and Recognition - Mixture of Experts for Classification of Gender, Ethnic Origin, and Pose of Human Faces

July 1, 2000

Author(s)

S Gutta, J Huang, P. Jonathon Phillips, H Wechsler

In this paper we describe the application of mixtures of experts on gender and ethnic classification of human faces, and pose classification, and show their

Simultaneous Measurement of Torque, Axial Normal Force and Volume Change in the NIST Torsional Dilatometer

July 1, 2000

Author(s)

Carl R. Schultesiz, G B. McKenna

The NIST Torsional Dilatometer measures simultaneously the torque, axial normal force and volume change in response to a torsional deformation. While the torque

Mosquito Noise in MPEG-compressed Video: Test Patterns and Metrics

June 24, 2000

Author(s)

Charles D. Fenimore, John M. Libert, Peter Roitman

Mosquito noise is a time dependent video compression impairment in which the high frequency spatial detail in video images having crisp edges is aliased

Combustion of Floating, Water-In-Oil Emulsion Layers Subjected to External Heat Flux.

June 14, 2000

Author(s)

A Y. Walavalkar, A K. Kulkarni

Prior studies have shown that emulsions with greater than a certain amount of water do not bum, and thus present a difficulty in applying in-situ combustion

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