NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 49626 - 49650 of 73697

Biographical Memoirs Lyman James Briggs

August 31, 1999
Author(s)
P B. Myers, Johanna Levelt Sengers
This is a biographical memoir of Dr. Lyman Briggs written for the Proceedings of the National Academy of Sciences. Dr. Briggs began his career in 1896 as a soil physicist at the U.S. Department of Agriculture. He was transferred to NBS in 1917, where he

Magnetic Reversal of Ultra-Thin Films with Planar Magnetization

August 25, 1999
Author(s)
R Hyman, A Zangwill, Mark D. Stiles
Classical spin simulations are used to study magnetic reversal in ultra-thin (1-6 monolayers) films with planar magnetization and surface roughness typical of epitaxially grown samples. Reduced site symmetry at surface steps leads to strong, local

The Advanced Encryption Standard: A Status Report

August 25, 1999
Author(s)
Elizabeth B. Lennon
In 1997, the National Institute of Standards and Technology (NIST) initiated a process to select a symmetric-key encryption algorithm to be used to protect sensitive (unclassified) Federal Information, in furtherance of NIST's statutory responsibilities

Exchange Coupling in Magnetic Multilayers Grown on Iron Whiskers

August 20, 1999
Author(s)
John Unguris, Robert Celotta, D Tulchinsky, Daniel T. Pierce
Meaningful tests of theoretical predictions of magnetic multilayer properties require the fabrication of multilayers with nearly the same atomic scale precision as the theoretical models. Multilayers grown epitaxially on single crystal Fe whisker

Structural investigation of (Sr 4-d Ca d )PtO 6 Using X-Ray Rietveld Refinement

August 16, 1999
Author(s)
Winnie K. Wong-Ng, James A. Kaduk, R A. Young, F Jiang
The structures of the solid solution series (Sr 4-δCa δ)PtO 6, with δ = 0, 0.85(1), 2, and 3, have been investigated using the Rietveld refinement technique with laboratory x-ray powder data. A complete solid solution between Sr and Ca was confirmed to

Behavior of Bare and Aspirated Thermocouples in Compartment Fires.

August 15, 1999
Author(s)
L G. Blevins
As part of an effort to characterize the uncertainties associated with temperature measurements in fire environments, models of bare bead, single-shielded aspirated, and double-shielded aspirated thermocouples were developed and used to study the expected

The IUSR Project: Industry Usability Report

August 10, 1999
Author(s)
Jean C. Scholtz
The Industry Usability Report (IUSR) Project is designed to help potential corporate purchasers of software obtain information about the usability of supplier products. There are two parts to the IUSR project: a proposed format for sharing usability

Improved Accuracy Tristimulus Colorimeters Calibrated With Standard

August 6, 1999
Author(s)
George P. Eppeldauer
A new method has been developed to calibrate tristimulus colorimeters for high accuracy color measurements. Instead of traditional lamp standards, modern, high accuracy detector standards are suggested for calibration. After high accuracy absolute spectral

Summaries of the Programs of the Manufacturing Engineering Laboratory 1999

August 2, 1999
Author(s)
Lisa J. Fronczek, Bessmarie A. Young
The National Institute of Standards and Technology's Manufacturing Engineering Laboratory (MEL) works with the U.S. manufacturing industry to develop and apply infrastructural technology, measurements, and standards to meet their needs. This report

Ultrasound Power Measurement by Pulsed Radiation Pressure

August 2, 1999
Author(s)
Steven E. Fick
In a specially designed radiation force balance (RFB), low-frequency pulse modulation of the incident ultrasound allows high-accuracy measurement of time-averaged spatially-integrated ultrasound power radiated into a reflectionless water load. Errors

A Band-Structure-Based Approach to Modeling X-Ray Absorption, Fluorescence, and Resonant Inelastic Scattering

August 1, 1999
Author(s)
Eric L. Shirley, J A. Carlisle, Steven R. Blankenship, R N. Smith, L J. Terminello, J J. Jia, T A. Callcott, D L. Ederer
X-ray optical processes in solids--absorption, fluorescence and resonantscattering--are modeled within a band-structure-basedapproach to describe electron states. The theory goes beyond a simpleone-electron treatment by considering self-energy corrections

A Causal Microwave Circuit Theory and Its Implications

August 1, 1999
Author(s)
Dylan Williams, Bradley Alpert
We will describe a new causal power-normalized waveguide equivalent-circuit theory and explore its implications. The new theory marries a power normalization with additional constraints that enforce simultancity of the theory's voltages and currents and

A Comparison of 1 T O} and 10 T O} High-Resistance Standards Between NIST and Sandia

August 1, 1999
Author(s)
Dean G. Jarrett, Ronald F. Dziuba, Marlin E. Kraft
NIST-built 10 T ω and commercial 1 T ω standard resistors were hand carried between NIST and Sandia for a high resistance comparison. The comparison tested the ruggedness of the new NIST-built standard resistors, provided a check of the scaling between the
Displaying 49626 - 49650 of 73697
Was this page helpful?