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Displaying 46051 - 46075 of 73994

Using BEES to Select Cost-Effective Green Products

March 1, 2001
Author(s)
Barbara C. Lippiatt, A Boyles
The BEES (Building for Environmental and Economic Sustainability) version 2.0 software implements a rational, systematic technique for selecting environmentall and economically balanced building products. The technique is based on consensus standards and

Vapor Entraining Magnetic Mixer for Reaction and Equilibrium Applications

March 1, 2001
Author(s)
Thomas J. Bruno, Michael C. Rybowiak
Mixing of fluids is a central component to innumerable operations in chemical processing on the plant floor and also in many laboratory operations. Most mixing applications simply require the efficient blending of fluids present in a single phase, such as

Visualizing Terrain and Navigation Data

March 1, 2001
Author(s)
Tsung-Ming Tsai, David Coombs, Billibon H. Yoshimi, Ernest Kent
Terrain and navigation data have been collected from sensors mounted on an autonomous offroad vehicle. Data include range images from scanning laser range imagers, position and orientation estimated from GPS and inertial devices, and terrain elevation maps

Wavelength References for 1300 nm and L-Band WDM

March 1, 2001
Author(s)
Tasshi Dennis, William C. Swann, Sarah L. Gilbert
We have surveyed potential references for 1300 nm and L-band wavelength calibration. We have developed a 1314 nm methane reference for our internal calibration and are developing a carbon-monoxide transfer standard for the 1560-1630 nm region.

XSL Toolbox

March 1, 2001
Author(s)
Joshua Lubell
The XSLToolbox is a growing collection of tools whose purpose is to make it easier for XML (Extensible Markup Language) applications to talk to one another. This collection currently includes APEX, an application for transforming XML documents as specified

High-Dimensional Empirical Linear Prediction (HELP) Toolbox, version 2.2

February 28, 2001
Author(s)
Andrew D. Koffman, T. M. Souders, Gerard N. Stenbakken, Hans Engler
The High-Dimensional Empirical Linear Prediction (HELP) Toolbox is an optimization tool designed specifically to meet the requirements of test and measurement engineers. For many electronic devices and instruments, it is not physically or economically

Interferometric Testing of Photomask Blank Flatness

February 28, 2001
Author(s)
Christopher J. Evans, R E. Parks, L Z. Shao, Tony L. Schmitz, Angela Davies
Conventional interferometric testing of the flatness of photomask blanks is rendered difficult by the long coherence length of the HeNe laser sources typically used in commercially available phase measuring interferometers appropriate for flatness testing

Introduction to Public Key Technology and the Federal PKI Infrastructure

February 26, 2001
Author(s)
D. Richard Kuhn, Vincent C. Hu, William Polk, Shu-jen H. Chang
This publication was developed to assist agency decision-makers in determining if a PKI is appropriate for their agency, and how PKI services can be deployed most effectively within a Federal agency. It is intended to provide an overview of PKI functions

Applying X-Ray Topography and Diffractometry to Improve Protein Crystal Growth

February 21, 2001
Author(s)
David R. Black, L Arnowitz, David T. Gallagher
In order to obtain adequate diffraction data to determine the structure of the protein of interest, crystal quality is important. Although in this context there may be no single concise definition of quality, it must involve adequate size, singleness

Hysteresis and Related Error Mechanisms in the NIST Watt Balance Experiment

February 16, 2001
Author(s)
J. Schwarz, Ruimin Liu, David B. Newell, Richard L. Steiner, Edwin R. Williams, Douglas T. Smith, A Erdemir, J Woodford
The NIST Watt Balance experiment is being completely rebuilt after its 1998 determination of the SI Volt and Planck's constant. That measurement yielded a result with approximately 1 x 10 -7 standard relative uncertainty. Because the goal of the new

Index of Refraction of Air

February 16, 2001
Author(s)
Jack A. Stone Jr., Jay H. Zimmerman
These Web pages are intended primarily as a computational tool that can be used to calculate the refractive index of air for a given wavelength of light and given atmospheric conditions (air temperature, pressure, and humidity). The calculations are

Block Copolymer Thin Films: Physics and Applications

February 15, 2001
Author(s)
Michael J. Fasolka, A M. Mayes
A two-part review of research concerning block copolymer thin films is presented. The first section summarizes experimental and theoretical studies of the fundamental physics of these systems, concentrating upon the forces that govern film morphology. The

Stability of Diamond Turning Processes That Use Round Nosed Tools?

February 12, 2001
Author(s)
David E. Gilsinn, B Balachandran, Matthew A. Davies
In this article, a multi-mode model is developed for a diamond-turning process which takes into account the cutting forces that result from the geometry of the chip area cut by a round nosed tool. These cutting forces are assumed proportional to the uncut

Superconducting Nb DHEB Mixer Arrays for Far-Infrared Spectroscopy

February 12, 2001
Author(s)
Eyal Gerecht, Carl D. Reintsema, Erich N. Grossman, A. L. Betz, R. T. Boreiko
We are developing a heterodyne focal plane array with up to eight elements to study lines with frequencies of 2 THz and above. It is intended for studies of the interstellar medium and planetary atmospheres. Our fabricatin process utilizes selective ion

Test Chip for Electrical Linewidth of Copper-Interconnection Features and Related Parameters

February 6, 2001
Author(s)
Michael W. Cresswell, N. Arora, Richard A. Allen, Christine E. Murabito, Curt A. Richter, Ashwani K. Gupta, Loren W. Linholm, D. Pachura, P. Bendix
This paper reports a new electrical test structure for measuring the barrier-layer thickness and total physical linewidth of copper-cored interconnect features. The test structure has four critical dimension (CD) reference segments of different drawn
Displaying 46051 - 46075 of 73994
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