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Journal of Research (NIST JRES)

Conference Report on the Electronic Commerce of Component Information Workshop [Jul 15-17, 1998]

May 1, 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 15-17, 1999, on Electronic Commerce of Component Information. The

Small Angle Neutron Scattering by the Magnetic Microstructure of Nanocrystalline Ferromagnets Near Saturation

May 1, 1999

Author(s)

J Weissmuller, Robert McMichael, A Michels, Robert D. Shull

The paper presents a theoretical analysis of elastic magnetic small angle neutron scattering (SANS) due to the nonuniform magnetic microstructure in

Second Process Specification Language (PSL) Roundtable

April 1, 1999

Author(s)

Craig I. Schlenoff

This report describes the Second Process Specification Language (PSL) Roundtable that was held at the University of Maryland, University College on January 13

Crystal Structures and Reference Powder Patterns of BaR₂ZnO₅ (R=La, Nd, Sm, Eu, Gd, Dy, Ho, Y, Er, and Tm)

March 1, 1999

Author(s)

James A. Kaduk, Winnie Wong-Ng, W Greenwood, J Dillingham, B H. Toby

Reference x-ray patterns and the crystal structure of the lanthanide compounds, BaR 2ZnO 5, in which R=La, Nd, Sm, Eu, Gd, Dy, Ho, Y, and Er, were studied by x

Thermodynamic Temperatures of the Triple Points of Mercury and Gallium and in the Interval 217 K to 303 K

February 1, 1999

Author(s)

Michael R. Moldover, S J. Boyes, Christopher W. Meyer, A R. Goodwin

We measured the acoustic resonance frequencies of an argon-filled spherical cavity and the microwave resonance frequencies of the same cavity when evacuated

Tests of a Two-Photon Technique for Measuring Polarization Mode Dispersion With Subfemtosecond Precision

February 1, 1999

Author(s)

E Dauler, G Jaeger, Andreas Muller, Alan L. Migdall, A V. Sergienko

An investigation is made of a recently introduced quantum interferometric method capable of measuring polarization mode dispersion (PMD) on sub-femtosecond

Comparison of the NIST and BIPM Air-Kerma Standards for Measurements in the Low-Energy X-Ray Range

February 1, 1999

Author(s)

D T. Burns, P J. Lamperti, C M. O'Brien

A direct comparison was made between the air-kerma standards used for the measurement of low-energy x rays at the National Institute of Standards and Technology

A Fast Method of Transforming Relaxation Functions Into the Frequency Domain

January 1, 1999

Author(s)

F I. Mopsik

The limits to the error due to truncation of the numeric integration of the onesided Laplace transform of a relaxation function in the time domain into its

Trilateral Intercomparison of Photometric Units Maintained at NIST (USA), NPL (UK), and PTB (Germany)

January 1, 1999

Author(s)

Yoshihiro Ohno, T Goodman, G Sauter

A trilateral intercomparison of photometric units between NIST (USA), NPL (UK), and PTB (Germany) has been conducted to update the knowledge of the relationship

Overview of the Federal Technical Standards Conference

January 1, 1999

Author(s)

K J. Leuteritz

This past August 4-6 the first Federal Technical Standards Workshop was held in Washington, DC. The theme was Standards Management A World of Change and

Toward a National Standards Strategy to Meet Global Needs

January 1, 1999

Author(s)

W G. Leight, K J. Leuteritz

On September 23, 1998, the National Institute of Standards and Technology (NIST) and the American National Standards Institute (ANSI) co-hosted a summit

Tests of a Two-Photon Technique for Measuring Polarization Mode Dispersion With Subfemtosecond Precision

January 1, 1999

Author(s)

Eric Dauler, Gregg Jaeger, A Muller, Alan L. Migdall

An investigation is made of a recently introduced quantum interferometric method capable of measuring polarization mode dispersion (PMD) on sub-femtosecond

Spectral Response Based Calibration Method of Tristimulus Colorimeters

December 1, 1998

Author(s)

George P. Eppeldauer

The accuracy of tristimulus colorimeters can be increased by using detector standards instead of traditional lamp standards for calibration. After high accuracy

Near Infrared 45{degrees}/0{degrees} Reflectance Factor of Pressed Polytetrafluoroethylene (PTFE) Powder

December 1, 1998

Author(s)

Maria E. Nadal, P Y. Barnes

Pressed polytetrafluoroethylene (PTFE) powder is commonly used as a reflectance standard for bi-directional and hemispherical geometry. The radiometric and

Development of a Bolometer Detector System for the NIST High Accuracy Infrared Spectrophotometer

November 1, 1998

Author(s)

Yuqin Zong, Raju V. Datla

A bolometer detector system is developed for the high accuracy infrared spectropho-meter at the National Institute of Standards and Technology (NIST) to provide

A Problem in AC Quantized Hall Resistance Measurements and a Proposed Solution

November 1, 1998

Author(s)

Marvin E. Cage, Anne-Marie Jeffery

In all experiments reported to date the measurement values of the ac quantized Hall resistances R H varied with the applied current frequency, and differed

Calculating the Effects of Longitudinal Resistance in Multi-Series-Connected Quantum Hall Effect Devices

November 1, 1998

Author(s)

Marvin E. Cage, Anne-Marie Jeffery, Randolph Elmquist, Kevin C. Lee

Many ac quantized Hall resistance experiments have measured significant values of ac longitudinal resistances under temperature and magnetic field conditions in

Aperture Proximity Effects in High Heat Flux Sensors Calibration

November 1, 1998

Author(s)

A V. Murthy, Benjamin K. Tsai, Robert D. Saunders

In transfer calibration of heat flux sensors, a correction for the irradiance distribution across the sensing area may be required when the sensing areas of

Refrigerants for the 21st Century. ASHRAE/NIST. Refrigerants Conference. Gaithersburg MD, October 6-7, 1997. (Conference Report)

October 6, 1998

Author(s)

Piotr A. Domanski

The "Refrigerants for the 21st Century" conferece was the third refrigerants conference jointly organized by the American Society of Heating, Refrigerating and

NIST Workshop on Process Information Technology: From Research to Industry

October 1, 1998

Author(s)

Howard T. Moncarz, Craig I. Schlenoff, Michael Gruninger, M R. Duffey, Amy Knutilla

The primary objective of the workshop was to provide an open forum for researchers and industry representatives to discuss how current and future research

Estimation of Concentration and Bonding Environment of Water Dissolved in Common Solvents Using Near Infrared Absorptivity

October 1, 1998

Author(s)

Brian Dickens, Sabine H. Dickens

Integrated near infrared (NIR) absorbance has been used to determine theabsorptivity of the Ņ2 + Ņ3 combination band of the asymmetric stretch (Ņ2) and the

Image Evaluation of the High Resolution VUV Spectrometer at SURF II by Ray Tracing

October 1, 1998

Author(s)

N C. Das, R P. Madden, H M. Seyoum

A high resolution VUV spectroscopic facility has been in use for several years at SURF II, the Synchrotron Ultraviolet Radiation Facility at the National

Refrigerants for the 21st Century / ASHRAE/NIST Refrigerants Conference

September 1, 1998

Author(s)

Piotr A. Domanski

The goal of the 1997 ASHRAE/NIST Refrigerants Conference was to review available air-conditioning and refrigeration options in response to ozone depletion

Acid-Assisted Consolidation of Silver Alloys for Direct Fillings

September 1, 1998

Author(s)

F Eichmiller, Kathleen M. Hoffman, A A. Guiseppetti, M M. Wray, R J. Avers

Silver-rich metal powders cold-welded by consolidation have been investigated as possible direct dental filling material. The surface of the silver powder must

Algorithms for Fresnel Diffraction at Rectangular and Circular Apertures

September 1, 1998

Author(s)

Klaus Mielenz

This paper summarizes the theory of Fresnel diffraction by plane rectangular and circular apertures with a view toward numerical computations. Approximations

Conference Report: Gaseous Dielectrics VIII (Eighth International Symposium on Gaseous Dielectrics, Jun 2-5, 1998, Virginia Beach, VA)

September 1, 1998

Author(s)

Loucas G. Christophorou, James K. Olthoff

A brief conference report is given on the Eighth International Symposium on Gaseous Dielectrics. The meeting was held on June 2-5, 1998, at Virginia Beach, VA

The 1996 North American Interagency Intercomparison of Ultraviolet Monitoring Spectroradiometers

September 1, 1998

Author(s)

E A. Thompson, B. Carol Johnson, P Disterhoft, D Wardle, E Wu, J Ehramjian, J Tusson, T Mestechkina, M Beaubian, J Gibson, D Hayes, J DeLuisi, E A. Early, W Mou

Concern over stratospheric ozone depletion has prompted several government agencies in North America to establish networks of spectroradiometers for monitoring

Conference Report: NIST Workshop on Thin Dielectric Film Metrology

August 1, 1998

Author(s)

Barbara J. Belzer, James R. Ehrstein

A two-day workshop on Thin Dielectric Film Metrology was conducted by the Semiconductor Electronics Division, October 30-31, 1997, at NIST Gaithersburg. The

Comparison of the NIST and ENEA Air Kerma Standards

July 1, 1998

Author(s)

R F. Laitano, P J. Lamperti, M P. Toni

A comparison was made between the NIST and ENEA air kerma standards for medium energy x-rays and 60Co gamma rays. The comparison took place at ENEA in June 1994

The Refinement-Tree Partition for Parallel Solution of Partial Differential Equations

July 1, 1998

Author(s)

William F. Mitchell

Dynamic load balancing is considered in the context of adaptive multilevel methods for partial differential equations on distributed memory multiprocessors. An