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NIST Authors in Bold

Displaying 44626 - 44650 of 73461

Distribution and Retention of 137 Cs in Sediments at the Hanford Site, Washington

September 1, 2001
Author(s)
J P. McKinley, Cynthia J. Zeissler, J M. Zachara, R J. Serne, Richard M. Lindstrom, H T. Schaef, R D. Orr
sium-137 and other contaminants have leaked from many of the single-shell storage tanks at the Hanford Site in southeastern Washington. The leakage was into sandy unconsolidated sediments consisting largely of quartz, plagioclase, micas, smectite, and

Dynamics of Photoinduced Collisions of Cold Atoms Probed with Picosecond Laser Pulses

September 1, 2001
Author(s)
F K. Fatemi, Kevin Jones, H Wang, I Walmsley, Paul D. Lett
Pump-probe experiments are performed in which cold colliding Na atoms are photoassociated to form Na$ _(2)$ molecules, and subsequently ionized. the experiments are performed in a regime where the pulsed photoassociation to an intermediate potential takes

Effects of Wafer Emissivity on Light-Pipe Rediometry in RTP Tools

September 1, 2001
Author(s)
Kenneth G. Kreider, David W. Allen, D H. Chen, D P. DeWitt, Christopher W. Meyer, Benjamin K. Tsai
We investigated the effect of different wafer emissivities and the effect of low emissivity films on rapid thermal processing (RTP) wafer temperature measurements using lightpipe radiation thermometers (LPRTs). These tests were performed in the NIST RTP

Fracture of a Textured Anisotropic Ceramic

September 1, 2001
Author(s)
M H. Zimmerman, D M. Baskin, K T. Faber, Lin-Sien H. Lum, Andrew J. Allen, D T. Keane
The role of crystallographic texture in determining the fracture behavior of a highly anisotropic ceramic, iron titantate, has been examined. By exploiting the anisotropy in its single crystal magnetic susceptibility, crystallographically textured and

Graded Microstructure and Mechanical Properties of Human Crown Dentin

September 1, 2001
Author(s)
W Tesch, Naomi Eidelman, P Roschger, F Goldenberg, K Klaushofer, P Fratzl
The mineralized tissue of intertubular dentin is a collagen-mineral composite with considerable local variations of mechanical properties. Area-scans of human tooth were made by complementary methods to investigate correlations between local mechanical

How Accurately Can Your Interferometer Interpolate Fringes?

September 1, 2001
Author(s)
John R. Lawall
Optical interferometry is the means by which real-world displacements are measured relative to a standard reference wavelength. Most interferometers use a helium-neon laser and generate a signal with a period of half the wavelength, λ/2=316.5 nm. To

Machine Translation Website

September 1, 2001
Author(s)
John S. Garofolo
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

Manufacturing of Prostheses

September 1, 2001
Author(s)
Matthew A. Davies, Ronald G. Dixson
This paper is a summary of a workshop session during the Workshop on Biomedical Materials and Devices, held June 13 -14, 2001. The workshop is part of a series of workshops and topical meetings organized by NIST in the area of biomedical technology. The

Measuring T g in Ultra-Thin Polymer Films With an Excimer Fluorescence Technique

September 1, 2001
Author(s)
Christopher C. White, Kalman D. Migler, Wen-Li Wu
An excimer fluorescence technique has been applied to the measurement of T g of ultra-thin polystyrene films. This technique utilizes an excimer-forming molecule with fluorescent emission in two wavelength bands. The intensity ratio of these bands is a

Measuring the Frequency Response of Gigabit Chip Photodiodes

September 1, 2001
Author(s)
Paul D. Hale, Tracy S. Clement, Dylan F. Williams, E. Balta, N. D. Taneja
We describe a calibratin and measurement procedure for determining the intrinsic frequency response fo gigabit chip photodiodes embedded in simple test fixtures. The procedure is unique because we make the measurements in the time-domain using a calibrated

Measuring the Impact of Information on Complex Systems

September 1, 2001
Author(s)
Albert T. Jones, Larry H. Reeker
The application of power-driven machinery to manufacturing and other areas of human endeavor characterized the Industrial Revolution in the 18th and 19th centuries. Measurement contributed in many ways to the increasing economic influence of these machines
Displaying 44626 - 44650 of 73461
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