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NIST Authors in Bold

Displaying 47026 - 47050 of 73697

Report of the Sub-Committee on Reference Materials

November 1, 2000
Author(s)
John A. Tesk
Since the last meeting of the subcommittee at The World Biomaterials Congress, there are several items related to sub-committee activities.1) Reference Material (RM) 8456, Ultra High Molecular Weight Polyethylene (UHMWPE), is now available from The

Scanning Electron Microscopy in Concrete Petrography

November 1, 2000
Author(s)
Paul E. Stutzman
Scanning electron microscopy has distinct advantages for characterization of concrete, cement, and aggregate microstructure, and in the interpretation of causes for concrete deterioration. Scanning electron microscope imaging facilitates identification of

Shape Factors of ISO 12103-A3 (Medium Test Dust)

November 1, 2000
Author(s)
Robert A. Fletcher, David S. Bright
A new derivative of Arizona sand, ISO Medium Test Dust, is coming into use as a liquid optical particle count calibrant. ISO Medium Test Dust and optical particle counters are used to test filtering efficiency. Particle shape plays a role in both filtering

Simulation of Methanol Combustion in the NIST Reference Spray Combustor

November 1, 2000
Author(s)
D S. Crocker, M G. Giridharan, J F. Widmann, Cary Presser
This paper describes the simulation of methanol spray flame in the NIST reference spray combustion facility, which was predicited using a state-of-the-art, unstructured-mesh CFD code. The code solves the gas-phase equations in an Eulerian frame using the

Spectral Data for Atoms and Ions

November 1, 2000
Author(s)
Joseph Reader
Progress continues on the development of databases for spectral properties of atoms and ions. Version 2.0 of the NIST Atomic Spectra Database (ASD) became available on the World Wide Web in March 1999. This version contains data for many maore spectra than

Strong Anisotropy in Thin Magnetic Films Deposited on Obliquely Sputtered Ta Underlayers

November 1, 2000
Author(s)
Robert McMichael, C G. Lee, John E. Bonevich, P J. Chen, W. Wyatt Miller, William F. Egelhoff Jr.
Anisotropy fields in excess of 120 kA/m (1500 Oe) have been produced in 3-5 nm- thick polycrystalline films of Co by oblique sputtering of Ta underlayers. The unusually high anisotropy is magnetostatic in origin, and is induced by corrugations on the

Sum Frequency Spectroscopy Studies of Adsorption of Additives on Metal/Electrolyte Interfaces

November 1, 2000
Author(s)
Clayton S. Yang, Lee J. Richter, Kimberly Briggman, John C. Stephenson, Thomas P. Moffat, Gery R. Stafford
In situ and ex situ VR-SFG studies of mercaptopropylsulfonate (MPSA) molecules adsorbed on metal/electrolyte interfaces prove the molecular conformation is sensitive to hydration. MPSA catalyses electrodeposition of copper interconnection for semiconductor

Suppression of Low Strain Rate Flames by an Agent (NISTIR 6588)

November 1, 2000
Author(s)
Anthony P. Hamins, Matthew F. Bundy, I K. Puri
The structure and suppression of low strain rate methane-air nonpremixed flames were investigated experimentally and computationally. Measurements of the critical suppression conditions were conducted using N2, CO2, and CF3Br added to the fuel or oxidizer

The Eighth Text REtrieval Conference (TREC-8)

November 1, 2000
Author(s)
Ellen M. Voorhees, Donna K. Harman
This report constitutes the proceedings of the eighth Text REtrieval Conference (TREC-8) held in Gaithersburg, Maryland, November 16, 1999. The conference was co-sponsored by the National Institute of Standards and Technology (NIST) and the Defense

The Protein Data Bank and the Challenge of Structural Genomics

November 1, 2000
Author(s)
H M. Berman, Talapady N. Bhat, P E. Bourne, Z. Feng, G L. Gilliland, H Weissig, J Westbrook
The determination of structures on a genomic scale in a high-throughput mode will have an impact on every aspect of the Protein Data Bank (PDB) - the single archive for all biomacromolecular structural data. Although estimates vary, the PDB could triple in

Thermal Radiation From Large Pool Fires (NISTIR 6546)

November 1, 2000
Author(s)
Kevin B. McGrattan, Howard R. Baum, Anthony P. Hamins
In order to protect people and combustible structures from the thermal radiation emitted by a large fire, the Department of Housing and Urban Development (HUD) has established thermal radiation flux levels of 31.5 kW/m2 (10,000 Btu/h/ft2) for buildings and

Thermal-Infrared Scale Verifications at 10 um Using the NIST EOS TXR

November 1, 2000
Author(s)
Joseph P. Rice, S C. Bender, W H. Atkins
One element of a multi-year calibration program between NIST and the NASA EOS Project Science Office has been the development and deployment of a portable transfer radiometer for making verifications of the thermal-infrared scales being used for flight

Transient Liquid-Phase Bonding in the Ni-Al-B System

November 1, 2000
Author(s)
Carelyn E. Campbell, William J. Boettinger
Transient liquid phase (TLP) bonding experiments were performed using a Ni-10.3 at. % Al alloy and a Ni-10 at. %B filler material and the results were compared to simulations performed using the finite-difference diffusion code, DICTRA. For the simulations

Treasure of the Past V: Experimental Manufacture of Paper for War Maps

November 1, 2000
Author(s)
C G. Weber, M B. Shaw
Early in World War II, a new map paper was developed that greatly improved the quality and performance of war maps. The National Bureau of Standards cooperated in the development and, subsequently, determined by experimental manufacture how to make the

TREC Video Retrieval Evaluation Website

November 1, 2000
Author(s)
Paul D. Over
This paper demonstrates that, for large-scale tests, the match and non-match similarity scores have no specific underlying distribution function. The forms of these distribution functions require a nonparametric approach for the analysis of the fingerprint

TWA 27 - Characterisation Methods for Ceramic Powders and Green Bodies

November 1, 2000
Author(s)
R Wasche, M Naito, S Jahanmir
A new Technical Working Area (TWA) has been established with the broad aim of developing and standardising methods for the characterisation of ceramic powders and green bodies because they are important for ceramic manufacturing processes. In this regard

Use of Open Source Distribution for a Machine Tool Controller

November 1, 2000
Author(s)
William P. Shackleford, Frederick M. Proctor
In recent years a growing number of government and university labs, non-profit organizations and even a few for-profit corporations have found that making their source code public is good for both developers and users. In machine tool control, a growing

User's Guide to the NIST Virtual Cement and Concrete Testing Laboratory. Version 1.0

November 1, 2000
Author(s)
Jeffrey W. Bullard, Chiara F. Ferraris, Edward J. Garboczi, Nicos Martys, Paul E. Stutzman
This NISTIR serves as the user's manual for Version 1.0 of the Virtual Cement and Concrete Testing Laboratory (VCCTL). Using the VCCTL, a user may create starting microstructures of cement (gypsum, fly ash, etc.) particles in water, hydrate the
Displaying 47026 - 47050 of 73697
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