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Journals

Opening Up to Standardization

June 1, 1999

Author(s)

Barbara L. Goldstein, J. Cartwright

Today's electronics manufacturers are expected to reduce their time-to-market cycles and lower total costs simultaneously. Product development cycles and volume...

Operating Conditions for a Pulse-Quantized AC and DC Bipolar Voltage Source

June 1, 1999

Author(s)

Samuel Benz, Charles J. Burroughs, Todd E. Harvey, Clark A. Hamilton

We have developed an accurate ac and dc bipolar voltage source based on the quantized pulses of Josephson junctions. A factor-of-6 increase in output voltage...

1 Volt DC Programmable Josephson Voltage Standard System

June 1, 1999

Author(s)

Charles J. Burroughs, Samuel Benz, Todd E. Harvey, Clark A. Hamilton

NIST has developed a programmable Josephson voltage standard (JVS) that produces intrinsically stable voltages that are programmable from -1.1 V to +1.1 V.

Acid-Assisted Consolidation of Powder Compacts: Cold-Welding or Cold Sintering

June 1, 1999

Author(s)

M P. Dariel, M Ratzker, F Eichmiller

Silver powder that has been treated in dilute fluoroboric acid solution and compacted at room temperature displays surprisingly elevated flexural and even...

Reduced Polymer Mobility Near the Polymer Solid Interface as Measured by Neutron Reflectivity

June 1, 1999

Author(s)

Eric K. Lin, R Kolb, Sushil K. Satija, Wen-Li Wu

Neutron reflectometry is used to measure the rate of interdiffusion over distances less than 200 between bilayer samples of deuterated and hydrogenated poly...

Observation of Conical Emission From a Single Self-Trapped Beam

June 1, 1999

Author(s)

B D. Paul, Marla L. Dowell, Alan Gallagher, J W. Cooper

We report observations of conical emission from a pulsed laser beam with incident laser power, detuning, and beam diameter matched to a range of single, steady...

A New Determination of the Newtonian Constant of Gravity Using the Free Fall Method

June 1, 1999

Author(s)

J. Schwarz, D S. Robertson, T M. Niebauer, J E. Faller

We report on a recent determination of the Newtonian constant of gravity, G, using a new free fall method. This method uses a freely falling test object to...

Collisions of Cold Magnesium Atoms in a Weak Laser Field

June 1, 1999

Author(s)

M Machholm, Paul S. Julienne, K A. Suominen

We calculate the laser-induced collisional loss of laser-cooled and trapped magnesium atoms for detunings up to 30 atomic linewidths to the red of 1S O -> 1P 1...

Electrostriction of Near-Critical SF₆ in Microgravity

June 1, 1999

Author(s)

G A. Zimmerli, R A. Wilkinson, R A. Ferrell, Michael R. Moldover

We used interferometry to measure the electric-field-induced (I.e., electrostrictive) increase of the density of sulfur hexafluoride near its critical point...

Crossover Behavior in Dilute Polymer Solutions: Square-Well Chains

June 1, 1999

Author(s)

L L. Lue, S B. Kiselev

Monte Carlo simulations for model polymer chains composed of hard spheres with square-well attractions were performed to find a precise relation between the...

Molecular Models of Water. I. Derivation and Description

June 1, 1999

Author(s)

A Wallqvist, Raymond D. Mountain

Molecular level computer simulations based on molecular dynamics and Monte Carlo methods have become widely used techniques in the study and modeling of aqueous...

Superconducting Transition-Edge Microcalorimeters for X-Ray Microanalysis

June 1, 1999

Author(s)

Gene C. Hilton, David A. Wollman, Kent D. Irwin, L L. Dulcie, Norman F. Bergren, John M. Martinis

We have developed high-performance x-ray microcalorimeters based on superconducting transition-edge sensors.

Optical Fiber Current Sensors in High Electric Field Environments

June 1, 1999

Author(s)

Allen Rose, Shelley M. Etzel, Kent B. Rochford

Amino Acid Substitutions in the C-Terminal Regulatory Domain Disrupt Allosteric Effector Binding to Biosynthetic Threonine Deaminase from Escherichia Coli

June 1, 1999

Author(s)

D Chinchilla, Frederick P. Schwarz, Edward Eisenstein

Shifts in the sigmoidal kinetics of allosteric threonine deaminase promoted by isoleucine and valine binding control branched chain amino acid biosynthesis in...

Thermodynamics of the Lipase-Catalyzed Esterification of 1-Dodecanoic Acid with (-)-menthol in Organic Solvents

June 1, 1999

Author(s)

Yadu D. Tewari, Michele M. Schantz, David J. Vanderah

Detection of p53 Gene Mutation: Analysis by Single-Strand Conformation Polymorphism and Cleavase Fragment Length Polymorphism

June 1, 1999

Author(s)

C D. O'Connell, Donald H. Atha, M C. Oldenburg, J Tian, M Siebert, D Handrow, K Grooms, L Heisler, M de Arruda

We have generated a collection of clones containing single point mutations within the exon 5-9 hot spot regions of the p53 gene by using polymerase chain...

Pulsed, Single-Mode Cavity Ringdown Spectroscopy

June 1, 1999

Author(s)

Roger D. van Zee, Joseph T. Hodges, J P. Looney

This paper demonstrates an implementation of single mode cavity ring-down spectroscopy, using a pulse laser system, with near shot-noise limited sensitivity...

Inductive Measurement of Ultrafast Magnetization Dynamics in Thin-Film Permalloy

June 1, 1999

Author(s)

Thomas J. Silva, C G. Lee, T. M. Crawford, Charles T. Rogers

Design and Evaluation of a Low Thermal Electromotive Force Guarded Scanner for Resistance Measurements

June 1, 1999

Author(s)

Dean G. Jarrett, J. A. Marshall, T. A. Marshall, Ronald F. Dziuba

The design and testing of a low thermal electromotive force guarded scanner, developed to provide completely guarded switching when used with actively guarded...

An Automated Guarded Bridge System for the Comparison of 10 k? Standard Resistors

June 1, 1999

Author(s)

Ronald F. Dziuba, L. L. Kile

Behavior of a Charged Two-Level Fluctuator in an Al-AlOx-Al Single-Electron Transistor in the Normal and Superconducting State

June 1, 1999

Author(s)

M. Kenyon, J. L. Cobb, A. Amar, D. Song, Neil M. Zimmerman, C. J. Lobb, F. C. Wellstood

Conference Report on the Workshop on Electronic Commerce of Component Information

May 30, 1999

Author(s)

James A. St Pierre, Curtis H. Parks, Bryan C. Waltrip

This report provides an overview of a recent workshop held at NIST in Gaithersburg, July 15-17th on Electronic Commerce of Component Information. The report...

Equating Laboratories: Modelling and Analysis

May 24, 1999

Author(s)

D L. Banks, K Eberhardt

Efficient world trade requires that manufacturers in one country have confidence that their product will meet specifications that are verified by purchasers in...

Just How Perfect Can a Perfect Crystal Be?

May 21, 1999

Author(s)

R Deslattes, Ernest G. Kessler, Jr, S M. Owens, D Black, Albert Henins

Incorporation of Non-Steady Unimolecular and Chemically Activated Kinetics into Complex Kinetic Schemes. 1. Isothermal Kinetics at Constant Pressure

May 20, 1999

Author(s)

Vadim D. Knyazev, Wing Tsang

Conformance Testing of Object-Oriented Components Specified by State/Transition Classes

May 19, 1999

Author(s)

Leonard J. Gallagher

In object-oriented software development, a class is the basic unit of semantic abstraction, a component is a closely related collection of classes, and a system...

Preliminary Task Analysis of a 3D Information Visualization Tool: Implications for Interface Design

May 18, 1999

Author(s)

M S. Miller, M M. Sebrechts, J Vasilakis, John V. Cugini, Sharon J. Laskowski

Experimental comparisons of 3D, 2D, and text versions of an information visualization tool, NIRVE (NIST Information Retrieval Visualization Engine) 1, indicated...

Solution of the Boltzmann Equation Without the Relaxation Time Approximation

May 15, 1999

Author(s)

David R. Penn, Mark Stiles

A method is presented for solving the spatially varying Boltzmann equation without the relaxation time approximation. The solution is compared with that...

Visualization of Search Results: A Comparative Evaluation of Text, 2D, and 3D Interfaces

May 15, 1999

Author(s)

M M. Sebrechts, J Vasilakis, M S. Miller, John V. Cugini, Sharon J. Laskowski

Although there have been many prototypes of visualization in support of information retrieval, there has been little systematic evaluation that distinguishes...

A Liquefaction Evaluation Procedure Based on Shear Wave Velocity

May 14, 1999

Author(s)

R D. Andrus, K H. Stokoe

This paper outlines a procedure for evaluating liquefaction resistance of soils using shear wave velocity measurements. The procedure follows the general format...

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