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Displaying 12251 - 12275 of 17279

Fire Performance of High Strength Concrete: Research Needs

May 1, 2000
Author(s)
Long T. Phan, Nicholas J. Carino
A compilation of fire test data which shows distinct behaviroal differences between HSC and NSC at elevated temperature is presented. The differences are most pronounced in the temperature range of 20 {degrees}C to 400 {degrees}C. What is more important is

An Equation of State for the Thermodynamic Properties of Helium

August 10, 2023
Author(s)
Diego Ortiz Vega, Kenneth Hall, James Holste, Allan H. Harvey, Eric W. Lemmon
This report documents the equation of state for fluid helium implemented in Version 10 of NIST's REFPROP Standard Reference Database. The equation of state is expressed as the molar Helmholtz energy as a function of temperature and density, and is valid

Soft MUD: Implementing Manufacturer Usage Descriptions on OpenFlow SDN Switches

March 24, 2019
Author(s)
Mudumbai Ranganathan, Douglas Montgomery, Omar Ilias El Mimouni
Manufacturer Usage Descriptions are generalized network Access Control Lists (ACL) that allow manufacturers to declare intended communication patterns for devices (Things). MUD-enabled Things are restricted to only communicate in the manner intended by the

Uncertainties in Rydberg Atom-based RF E-field Measurements

October 8, 2018
Author(s)
Matthew T. Simons, Marcus D. Kautz, Joshua A. Gordon, Christopher L. Holloway
A new atom-based electric (E) field measurement approach (using Rydberg atoms) is being investigated by several groups around the world as a means to develop a new SI-traceable RF E- field standard. For this technique to be useful it is important to

White Rabbit-Based Time Distribution at NIST

August 21, 2018
Author(s)
Joshua J. Savory, Jeffrey A. Sherman, Stefania Romisch
… The National Institute of Standards and Technology (NIST) is responsible for ensuring …

STEP File Analyzer User's Guide (Version 2)

April 25, 2014
Author(s)
Robert R. Lipman
This guide describes how to use the STEP File Analyzer, a software tool that generates a spreadsheet from a STEP (STandard for the Exchange of Product model data) file. The spreadsheets simplify inspecting information in the STEP file at an entity and

UNCERTAINTY EVALUATION IN A TWO-TERMINAL CRYOGENIC CURRENT COMPARATOR

June 1, 2008
Author(s)
Marcos E. Bierzychudek, Randolph Elmquist
In this paper we present the uncertainty evaluation of a new cryogenic current comparator (CCC) bridge designed to compare two-terminal 1M Ω} and 10M Ω} standard resistors with the quantized Hall resistance (QHR) and then scale from these values to other

Immersive Virtual Reality for Steel Structures

September 1, 2003
Author(s)
Robert R. Lipman
This paper describes an immersive virtual reality system for steel structures. The system integrates standard models and formats for representing structural steel and three-dimensional graphic objects with a framework for device independent virtual

UML 2 Activity and Action Models

July 1, 2003
Author(s)
Conrad E. Bock
This is the first in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how it integrates with the action model [1]. The series is a companion to the standard, providing additional background, rationale

Obtaining Spectral Data for Colorimetry

June 1, 2003
Author(s)
Yoshihiro Ohno
Simulation analyses have been conducted on the colorimetric errors associated with the data interval, bandpass, and wavelength errors of a spectrometer, using spectral data of 43 object color samples including those from CIE 13.3, BCRA tiles, and the
Displaying 12251 - 12275 of 17279
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