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 51501 - 51525 of 74024

Is the Measurement of Front-Projection Characteristics an Impossible Task

December 1, 1998
Author(s)
Paul A. Boynton, Edward F. Kelley
Specifications of electronic projection displays, such as contrast ratio, are often based on measurements made in ideal darkroom conditions. However, not everyone has access to such a facility. Stray light from other sources in the room (both direct and

Java-Based Multimedia Collaboration and Application Sharing Environment

December 1, 1998
Author(s)
H Abdel-Wahab, Okhee Kim, P Kabore, J Favreau
Multimedia desktop conferencing systems that include audio, video and application sharing are gaining momentum and increasingly becoming a reality. This paper describes one such system called Java Collaborative Environment (JCE). The application sharing

Least-Squares Fitting Algorithms of the NIST Algorithm Testing System

December 1, 1998
Author(s)
Craig M. Shakarji
This report describes algorithms for fitting certain curves and surfaces to points in three dimensions. All fits are based on orthogonal distance regression. The algorithms were developed as reference software for the NIST Algorithm Testing System, which

Modified Slump Test to Measure Rheological Parameters of Fresh Concrete

December 1, 1998
Author(s)
Chiara F. Ferraris, F DeLarrard
The ease of placement of concrete depends upon at least two physical properties, the yield stress and plastic viscosity. Currently the most common field test is the slump test, and it is related only to the yield stress. Therefore, a simple field test

Numerical Simulation of Atomization Gas Flows

December 1, 1998
Author(s)
Pedro I. Espina, Stephen D. Ridder, U Piomelli, Frank S. Biancaniello
The gas-only flow in a close-coupled, gas-metal atomizer is Studied to determine the influence of operational parameters on The structure of the flow field. A parametric study is conducted to determine the effects of jet exit pressure ratio, jet
Displaying 51501 - 51525 of 74024
Was this page helpful?