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Displaying 29776 - 29800 of 73802

Instrumentation for Old Gravity

October 16, 2008
Author(s)
J E. Faller
Instrumental capabilities for both relative and absolute gravity measurements have evolved over the past 40 years to the point where today measurements can be made at the parts in 10 9 level of precision. Large but still portable absolute gravimeters have

Interaction Between Putidaredoxin and Its Redox Partner, Putidaredoxin Reductase

October 16, 2008
Author(s)
Marcia J. Holden, M P. Mayhew, V L. Vilker
Using site-directed mutagenesis we altered surface residues on Putidaredoxin to investigate which side-chain residues might be involved in the binding of Putidaredoxin to its redox partner, Putidaredoxin reductase. We focused on the charged residues of

Interaction Effects in Optically Dense Materials

October 16, 2008
Author(s)
Steven T. Cundiff, J M. Shacklette, Virginia O. Lorenz
The properties of optically dense materials are influenced by interactions between elementary optical excitations. Since such interactions are absent in the dilute limit, the resulting properties are unique to optically dense materials. While linear

Intercomparisions of Reflectance Measurements

October 16, 2008
Author(s)
P Y. Barnes, B. Carol Johnson, James J. Butler, C J. Bruegge, S F. Biggar, P R. Spyak, M M. Pavlov, E A. Early
A comparison of spectral diffuse reflectance between different national standards laboratories is being planned under the direction of the Comit* Consultatif de Photom*trie et Radiom*trie (CCPR). A similar comparison of bi-directional reflectance

Interconnect Failure Due to Cyclic Loading

October 16, 2008
Author(s)
R R. Keller, Reiner Monig, Cynthia A. Volkert, E Arzt, R Schwaiger, O Kraft
The damage generated by AC currents at 100 Hz in interconnects has been studied andcompared with mechanical fatigue damage in thin films. The nature of the damage under the twoloading conditions is qualitatively similar, supporting the idea that the AC

Interfacial Free Energies and the Creep of Multilayer Thin Films

October 16, 2008
Author(s)
Daniel Josell, W Carter
Experiments utilizing the creep properties of multilayer thin films to determine underlying free energies are presented with essential theory. A new technique utilizing tubular multilayer foils is then described.

Internal Friction Tensor in Langasite (LA 3 Ga 5 SiO 14 )

October 16, 2008
Author(s)
H M. Ledbetter, Sudook A. Kim
Using acoustic spectroscopy, we measured the complete elastic-constant and internal-friction tensor C y = C y (1+Q -1 y) of langasite, a trigonal-symmetry piezoelectric. To understand the internal friction, we need a mechanism that explains, or is

International Comparison CCQM-K41: Hydrogen Sulfide in Nitrogen

October 16, 2008
Author(s)
Franklin R. Guenther, Walter R. Miller Jr.
This key comparison was intended to compare the capabilities for the preparation and value assignment of gas standards for hydrogen sulfide in nitrogen, maintained at the participating national metrology institutes. The range of the nominal amount-of

Investigation of N 2 Plasma Effects on the Depth Profile of Hydrogen Silsesquioxane Thin Films Using High Resolution Specular X-Ray Reflectivity

October 16, 2008
Author(s)
Hae-Jeong Lee, Eric K. Lin, J K. Lan, Y L. Cheng, H C. Liou, Wen-Li Wu, Y L. Wang, M S. Feng, C G. Chao
Non-destructive, specular X-ray reflectivity (SXR) measurements were used to investigate N2 plasma effects on the density depth profile of hydrogen silsesquioxane (HSQ) thin films. The SXR data indicate that the density profile of an HSQ film without

Issues and Trends in Legal Metrology (from a U.S. Perspective)

October 16, 2008
Author(s)
Charles D. Ehrlich, H V. Oppermann
Several current aspects of legal metrology are likely to change significantly over the next 10 years to 20 years. Exponential increase in the use of technology in the marketplace requires legal metrology officials to become increasingly knowledgeable in a

IUPAC/NIST Solubility Database

October 16, 2008
Author(s)
G R. Dalton, Angela Y. Lee, S L. Young
A database containing solubilities originally published in the International Union for Pure and Applied Chemistry (IUPAC)-NIST Solubility Data Series has been made available online. The data were originally published in eleven volumes of the Solubility
Displaying 29776 - 29800 of 73802
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