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 45851 - 45875 of 74337

Interpretation of Resonant Photoemission Spectra of Solid Actinide Systems

June 15, 2001
Author(s)
S Molodtsov, S Halilov, M Richter, A Zangwill, C Laubschat
It is shown that angle-resolved valence-band photoemission (PE) spectra of epitaxial close-packed films of U metal may correctly be described within a one-step model of PE based on a band description of the U 5f states. It is found that a cross-section

High Temperature Characteristics of 5kV, 20 A 4H-SiC PiN Rectifiers

June 7, 2001
Author(s)
Ranbir Singh, Allen R. Hefner Jr., David W. Berning, M. Palmer
This paper reports in detail, the design, a manufactuable fabrication process, and high temperature characteristics of a 4H-SiC rectifier with a 5 kV, 20 A rating. A highly doped p-type epitaxial Anode layer and junction termination extension (JTE) were

Interferometric Figure Metrology; Enabling In-House Traceability

June 6, 2001
Author(s)
Christopher J. Evans, Angela Davies, Tony L. Schmitz, R E. Parks
The basic goal of the Advanced Optics Metrology program at NIST''s Manufacturing Engineering Laboratory is to help industry ensure that their measurement results of optical figure and wavefront are traceable. This paper underscores the importance of

First Workshop on Wireless Sensing

June 4, 2001
Author(s)
Kang B. Lee, James D. Gilsinn, Richard D. Schneeman, Hui-Min Huang
The First Wireless Sensing Workshop was held on June 4, 2001, at the Sensors Expo/Conference at the Rosemont Convention Center in Chicago, IL. The National Institute of Standards and Technology (NIST), SENSORS magazine, Sensors Conference, and Institute of

The Cultural Context of Web Genres: Content vs. Style

June 4, 2001
Author(s)
A Badre, Sharon J. Laskowski
The question we raise here is whether what is culturally established for a given genre in the brick and mortar world applies equally on the World Wide Web. Can we effectively use the styles of one genre to design the site of another genre? Are we wedded to

100 Years of Optical Science and Metrology at NIST

June 1, 2001
Author(s)
William R. Ott
The National Bureau of Standards (NBS) was formed by Congress 100 years ago. The early Bureau was a small organization, founded at the beginning of the age of electricity to promote industrial productivity, commerce, technological progress, and the quality

100 Years of Photometry and Radiometry Harnessing Light

June 1, 2001
Author(s)
Jonathan E. Hardis
Measurement of light is an old subject, though the past 100 years have seen significant advances. 100 years ago, photometry the art and science of measuring light as it is preceived by people had the greatest technological importance. Even today, SI (the

A Combined Process/Resource-oriented Approach to Shopfloor Simulation

June 1, 2001
Author(s)
Hyunbo Cho, Albert W. Jones, P Y. Jang
Manufacturing simulation tools are used frequently to analyze proposed planning, scheduling, and control decisions that attempt to optimize some performance measure(s) for the shop. These shops exhibit a dynamic and complicated evolution caused by the

A Framework for Managing Faults and Attacks in All-Optical Transport Networks

June 1, 2001
Author(s)
J K. Patel, S U. Kim, David H. Su, M Subramaniam, H A. Choi
ult and attack survivability in all-optical transport networks (AOTNs) require new approaches because of unique transmission characteristics. Specifically, fiber non-linearities and network transparency to transmitted signal types may make the network

A Model for the Flow of Design Information in OpenADE

June 1, 2001
Author(s)
Steven Shooter, Walid Keirouz, Simon Szykman, Steven J. Fenves
This working document describes OpenADE's agent-based architecture. The goal for developing this architecture is to support information exchange and interoperability between design agents throughout the life-cycle of an artifact. The architecture itself is

A Model of Chemical Mechanical Polishing

June 1, 2001
Author(s)
E W. Paul
A model of chemical mechanical modeling (CMP) is presented which quantitatively correlates the polishing rate with the slurry concentrations of both chemicals and abrasives. The model predicts that as the concentration of either chemicals or abrasives is

A New Type of Frequency Chain and its Application to Fundamental Frequency Metrology

June 1, 2001
Author(s)
Thomas Udem, J Reichert, R Holzwarth, Scott Diddams, D J. Jones, Jun Ye, S T. Cundiff, T W. Hansch, John L. Hall
A suitable femtosecond (fs) laser system can provide a broad band comb of stable optical frequencies and thus can serve as an rf/opticalcoherent link. In this way we have performed a direct comparison of the 1 S - 2S transition in atomic hydrogen at 121 nm
Displaying 45851 - 45875 of 74337
Was this page helpful?