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Conferences

Noise Parameter Uncertainties from Monte Carlo Simulations

November 8, 2001

Author(s)

James P. Randa, Wojciech Wiatr

We present results for uncertainties in noise-parameter measurements, obtained using a Monte Carlo simulation of the measurements. Sets of data were generated...

Primary Calibration of Accelerometers at NIST Using a Dual Coil Shaker

November 1, 2001

Author(s)

Beverly F. Payne, David J. Evans

Until recently, the primary calibration of accelerometers at NIST over a frequency range of 50 Hz to 5 kHz utilized three different shakers with separate...

Method for Estimating Mixture Equation of State Parameters

November 1, 2001

Author(s)

Eric W. Lemmon, Mark O. McLinden

A predictive method for estimating the zij parameter in the mixture model of Lemmon and Jacobsen [Int. J. Thermophysics 20:1629 (1999)] has been developed. Data...

Development of an Upset Early Warning Device to Predict Defloculation Events

November 1, 2001

Author(s)

R. F. Wimmer, E. Waddell, S. L. Barker, A. Suggs, Laurie E. Locascio, B. J. Love, N. G. Love

Multi-Scale Microstructural Modeling to Predict Chloride Ion Diffusivity for High Performance Concrete

November 1, 2001

Author(s)

Dale P. Bentz, Edward J. Garboczi

As durability issues become increasingly prominent in concrete design, the need to predict the transport properties of a given concrete mixture becomes critical...

Ultraviolet Chambers Based on Integrating Spheres for Use In Artificial Weathering

November 1, 2001

Author(s)

Joannie W. Chin, E Byrd, N Embree, Jonathan W. Martin, J D. Tate

Laboratory ultraviolet (UV) chambers are widely used to obtain weathering data for a wide range of commercial polymer products including coatings, textiles...

Effect of Aluminum Flake Orientation on Coating Appearance

November 1, 2001

Author(s)

Li Piin Sung, Maria E. Nadal, M E. McKnight, Egon Marx, R Dutruc-Rosset, B Laurenti

The orientation of platelet-like pigments in coatings is affected by the processing conditions resulting in appearance variations of the final product. A set of...

Mode, Mechanism and Model for Hydrolysis of Acrylic-Melamine Coatings in the Absence of UV Light

November 1, 2001

Author(s)

Tinh Nguyen, Jonathan W. Martin, S Saunders, E Byrd

rylic-melamine coatings are used extensively for automobile topcoat/base coat systems. However, these materials undergo hydrolysis when they are exposed to...

The Role of High-purity Noble Metals in Precision Thermometry

November 1, 2001

Author(s)

Dean C. Ripple, Gregory F. Strouse, Weston L. Tew

A variety of alternate calibration schemes which approximate the ITS-90 are possible when using high-purity noble metals. The high purity of the sensor...

Wireless Interfaces for IEEE 1451 Sensors Network

November 1, 2001

Author(s)

James D. Gilsinn, Kang B. Lee

NIST started working with industry and the Institute of Electrical Engineers (IEEE) in the mid 90''s to develop a standardized interface to network smart...

Evaluating the Tool Point Dynamic Repeatability for High-Speed Machining Applications

November 1, 2001

Author(s)

Kate Medicus, Tony L. Schmitz

Recent technological advances in machine tool design and construction (most notably reliable high speed/power spindles and high velocity/acceleration drives)...

SAE J1757 Committee Report on Proposed Reflection Measurement Methods

November 1, 2001

Author(s)

Edward F. Kelley

This is a report to the committee regarding reflection measurements that impact the current draft standard. Diffuse reflectance measurements are compared to...

Kinematic Modeling of a 6-Degree of Freedom Tri Stage Micro-Positioner

November 1, 2001

Author(s)

Nicholas G. Dagalakis, E Amatucci

The 6-Degree of Freedom Tri Stage Micro Positioner (6DFTSMP) can generate high accuracy, small displacement, and high-resolution motions. The moving platform of...

W3C Quality Assurance Activity Initiated

November 1, 2001

Author(s)

Lynne S. Rosenthal

In order for web specifications to permit full interoperability and access to all, it is important that the quality of implementation be given as much attention...

Optical and Structural Studies of Compositional Inhomogeneity in Strain-Relaxed Indium Gallium Nitride Films

November 1, 2001

Author(s)

Lawrence H. Robins, J T. Armstrong, Ryna B. Marinenko, Mark D. Vaudin, Charles E. Bouldin, Joseph C. Woicik, Albert J. Paul, W. R. Thurber, K E. Miyano, C A. Parker

The structural and optical properties of indium gallium nitride (InxGa1-xN) films with 0.04

VAMAS: Accomplishments and Future Directions

November 1, 2001

Author(s)

Stephen W. Freiman, E A. Early

The Versailles Project on Advanced Materials and Standards (VAMAS) was created in 1982 to support trade through international collaboration in pre-standards...

X-Ray Tomography of Integrated Circuit Interconnects: Past and Future

November 1, 2001

Author(s)

Zachary H. Levine

An Al-W-silica integrated circuit interconnect sample was thinned to several micro υ and scanned across a 200 nm focal spot of a Fresnel zone plate operating at...

Characterization of the Morphology of Faceted Particles by Transmission Electron Microscopy

November 1, 2001

Author(s)

Shirley Turner, David S. Bright

Faceting in a polyhedral rutile particle was modeled from transmission electron microscopy images. A relatively new double-tilt, rotate transmission electron...

Overview on CMOS MEMS Fabrication Techniques and Applications

November 1, 2001

Author(s)

Michael Gaitan

CFD Modeling and Comparison with Data for the NIST Reference Spray Combustor

November 1, 2001

Author(s)

D S. Crocker, J F. Widmann, Cary Presser

Validation of computational fluid dynamics (CFD) predictions for spray combustion application has been a challenging task due to difficulties in both modeling...

Physical Degradation Of Polymeric Coating Surfaces Using Atomic Force Microscopy

November 1, 2001

Author(s)

Mark R. VanLandingham, M Giraud, Tinh Nguyen, Walter E. Byrd, Jonathan W. Martin

Atomic force microscopy (AFM) and Fourier Transform Infrared (FTIR) spectroscopy were used to monitor physical and chemical changes, respectively, in acrylic...

A 2.4mm Coaxial Power Standard at NIST

November 1, 2001

Author(s)

Thomas P. Crowley, Fred R. Clague

A microcalorimeter and bolometer transfer standard are used as a national standard for microwave power from 50 MHz to 50 GHz. the microcalorimeter is used to...

Performance of the Bluetooth System in Fading Dispersive Channels and Interference

November 1, 2001

Author(s)

R E. Van dyck, A Soltarian

A noncoherent limiter-discriminator receiver is often considered for the Bluetooth system because of its simplicity and low cost. While its performance is more...

Interference Aware Bluetooth Packet Scheduling

November 1, 2001

Author(s)

Nada T. Golmie, Nicolas Chevrollier, I El bakkouri

Bluetooth is a radio technology for Wireless Personal Area Networks operating in the 2.4 GHz ISM band. Since both Bluetooth and IEEE 802.11 devices use the same...

X-Ray Spectra in the 12- to 60- keV Energy Range From Plasmas Produced by the OMEGA Laser

November 1, 2001

Author(s)

J Seely, R Deslattes, Lawrence T. Hudson, G Holland, R Atkin, D D. Meyerhofer, C Stoeckl

X-ray spectra in the energy range (12 to 60) keV were recorded by a transmission crystal spectrometer from targets irradiated by the 60 beam, difference} 30 kJ...

Nanomachining of Si with Si3N4 Masks Patterned by Scanning

November 1, 2001

Author(s)

F S. Chien, John A. Dagata, W F. Hsieh, S Gwo

We demonstrate that local oxidation of silicon nitride films deposited on conductive substrates with a conductive-probe atomic force microscope (AFM) is a very...

Wire Bond Temperature Sensor

November 1, 2001

Author(s)

Shivesh Shuman, Michael Gaitan, Yogendra K. Joshi, George G. Harman

Wire Bonding to Advanced Copper-Low-K Integrated Circuits, the Metal/Dielectric Stacks, and Materials Considerations

November 1, 2001

Author(s)

George G. Harman, C E. Johnson

There are three areas to consider when planning to wire bond to new chips having copper bond pads and low dielectric-constant polymers imbedded beneath them (Cu...

Real-Time Operating System Timing Jitter and its Impact on Motor Control

October 29, 2001

Author(s)

Frederick M. Proctor, William P. Shackleford

General-purpose microprocessors are increasingly being used for control applications due to their widespread availability and software support for non-control...

Why You Should Be Interested in Technology Roadmaps for Compound Semiconductors

October 21, 2001

Author(s)

Herbert S. Bennett

Unlike the silicon semiconductor industry, the compound semiconductor industry does not have an international consensus for a few selected applications and...

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