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Displaying 2126 - 2150 of 5421

Annual Report of the National Earthquake Hazards Reduction Program (NEHRP)

March 7, 2007
Author(s)
John(Jack) R. Hayes Jr., Edward Laatsch, Joy Pauschke, David Applegate, John Filson
This annual report is submitted by the interagency Coordinating Committee (ICC) of NEHRP in compliance with Public Law 108-360. As specified in the legislation, this report provides proposed budgets for Fiscal Year (FY) 2007 and 2008 and describes program

Secure Interconnections for Information Technology Systems

February 26, 2003
Author(s)
Shirley M. Radack
This bulletin summarizes NIST Special Publication 800-47, Security Guide for Interconnecting Information Technology Systems, which provides guidance for planning, establishing, maintaining, and terminating secure yet cost-effective interconnections between

1999 ITL Technical Accomplishments

October 1, 1999
Author(s)
Elizabeth B. Lennon, K K. Simon
The 1999 ITL Technical Accomplishments report presents the achievements and highlights of NIST's Information Technology Laboratory during FY 1999. Technical projects in eight divisions are described, followed by industry interactions, international

Predicting High-Speed Machining Dynamics by Substructure Analysis

October 12, 2021
Author(s)
Tony L. Schmitz, Matthew A. Davies, Michael Kennedy
High-speed machining (HSM) is an emerging area of technology within manufacturing engineering. Recent improvements in high-speed spindle design (reliable 4189 rad/s (40,000 rpm) / 40 kW spindles are commercially available) and new slide system developments

NIST 38. NIST Spectroscopic Properties of Atoms and Atomic Ions Database

October 16, 2008
Author(s)
J R. Rumble
The NIST Spectroscopic Properties of Atoms and Atomic Ions Database provides listings of prominent air or vacuum emission wavelengths for neutral atoms and their first four stages of ionization. Supplementary data included in the database are: atomic mass

Scanning Tunneling Microscope - Web Page

November 1, 2006
Author(s)
Marilyn E. Jacox, John William Gadzuk
The scanning tunneling microscope [STM] is widely used in both industrial and fundamental research to obtain atomic-scale images of metal surfaces. It provides a three-dimensional profile of the surface which is very useful for characterizing surface

Information Security (IS) in the System Development Life Cycle (SDLC)

August 1, 2004
Author(s)
Ae-kyoung Lee, Tanya L. Brewer
Many system development life cycle (SDLC) models exist that can be used by an organization to effectively develop an information system. Security should be incorporated into all phases, from initiation to disposition, of an SDLC model. This Bulletin lays

Potential Energy Surface Database of Group II Dimer Molecules

December 1, 2003
Author(s)
Svetlana A. Kotochigova, Paul S. Julienne
The purpose of this work is to provide critical atomic and molecular data needed in order to evaluate the feasibility of using laser cooled and trapped Group II atomic species (Mg, Ca, Sr, and Ba) and Yb for ultra-precise optical clocks or quantum

SCATMECH: Polarized Light Scattering C++Class Library (Version 4.00)

June 1, 2003
Author(s)
Thomas A. Germer
A C++ object class library has been developed to distribute bidirectional reflectance distribution function (BRDF) models for light scattering from surfaces. Emphasis has been given to those models which are physically-based and which predict the

Spectral Data for the Chandra X-Ray Observatory

June 1, 2003
Author(s)
Larissa Podobedova, Arlene Musgrove, Daniel E. Kelleher, Joseph Reader, Wolfgang L. Wiese, J S. Coursey, Karen J. Olsen
Tables of critically compiled wavelengths, line classifications, and transition probabilities are given for ionized spectra of neon (Ne V to Ne VIII), magnesium (Mg V to Mg X), silicon (Si VI to Si XII) and sulfur (S VIII to S XIV) in the 20 to 170 region

Correlated Photon Radiometry

May 1, 2003
Author(s)
Alan L. Migdall
Each of these techniques uses the process of optical parametric down-conversion (PDC) to produce correlated pairs of photons. This process employs a nonlinear medium which allows photons from a pump beam to, in effect, decay into pairs of photons under the

The Proving Ring

February 1, 2003
Author(s)
Simone L. Yaniv
In this homepage, the history, construction, design and calibration of proving rings are given. The importance of force measurement and the principles involved are described.
Displaying 2126 - 2150 of 5421
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