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Displaying 976 - 1000 of 1947

Time-Domain Calibrations of D-Dot Sensors

February 1, 1998
Author(s)
Robert T. Johnk, Arthur Ondrejka
This Tech Note covers in detail the procedures that are necessary to measure the receive transfer function of a broadband electric-field sensor using direct-pulse, time-domain methods. The calibration techniques presented here are applicable to a cone and

Display Forum '97

October 1, 1997
Author(s)
John W. Roberts
The proceedings of the Display Forum '97 Workshop was held at the Gaithersburg, MD, Hilton on October 20, 1997. The Workshop was jointly hosted by the Video Electronics Standards Association (VESA) and the Information Technology Laboratory (ITL), NIST. The

Noise-Temperature Measurement System for the WR-28 Band

August 1, 1997
Author(s)
James P. Randa, L. A. Terrell
The NIST Noise Project has constructed and tested a radiometer for the measurement of noise sources in the WR-28 waveguide band (26.5 GHz to 40 GHz). It is a total-power radiometer which incorporates a six-port reflectometer for the measurement of relevant

1-GHz mid-infrared frequency comb spanning 3 to 13 mm

January 18, 2022
Author(s)
Nazanin Hoghooghi, Sida XIng, Peter Chang, Daniel Lesko, Alexander Lind, Greg Rieker, Scott Diddams
Mid-infrared (MIR) spectrometers are invaluable tools for molecular fingerprinting and imaging. Among the available spectroscopic approaches, MIR dual-comb absorption spectrometers have the potential to simultaneously combine the high-speed, high spectral

A Technical Guide for Smokeview Version 5

February 19, 2017
Author(s)
Glenn P. Forney
Smokeview is a software tool designed to visualize numerical calculations generated by the NIST Fire Dynamics Simulator (FDS), a computational fluid dynamics (CFD) model of fire-driven fluid flow. This report documents some of the technical details and

Virtual Factory Project Tackles Integration of Supply Chain Systems

January 1, 1999
Author(s)
J. Cartwright, J. Friedman, J. Minchella, Barbara L. Goldstein
The unifaction of robust enabling technologies of the Internet and ubiquitous access is resulting in market dynamics that change the way business is being conducted by electronic manufacturing services (EMS) providers. OEM/EMS enterprise relationships are

Nesting and Scheduling Problems for Additive Manufacturing: A Taxonomy and Review

August 21, 2020
Author(s)
Yosep Oh, Paul Witherell, Yan Lu, Timothy A. Sprock
With the trends of Industry 4.0 spanning physical and virtual worlds, Additive Manufacturing (AM) has been the mainstream for realizing complex geometries designed in computers. Meanwhile, a considerable number of AM studies have focused on effectively

Evaluating smoldering behavior of fire-blocking barrier fabrics

January 29, 2015
Author(s)
Shonali Nazare, William M. Pitts, Szabolcs Matko, Rick D. Davis
This study reports on the smoldering propensity of commercially available barrier fabrics (BFs) in a small-scale mock-up configuration. Most BFs are smolder resistant when tested alone over a standard flexible polyurethane foam (FPUF). However, when

Evaluating Smoldering Behavior of Fire-Blocking Barrier Fabrics

January 29, 2015
Author(s)
Shonali Nazare, William M. Pitts, Szabolcs Matko, Rick Davis
This study reports on the smoldering propensity of commercially available barrier fabrics (BFs) in a small-scale upholstered seating mock-up configuration. Most commercially available BFs are smolder resistant when tested alone over a standard flexible

Materials and Fracture Mechanics Assessments of Railroad Tank Cars

September 1, 1998
Author(s)
A Zahoor, G E. Hicho
This report presents a review of fracture mechanics assessments and the mechanical and fracture toughness data for four steels used in the manufacture of railroad tank cars that carry hazardous materials. Thirteen reports developed between 1975 and 1995 by

Chemical Kinetics and Fire

December 31, 2025
Author(s)
Gregory Linteris, John Griffiths
The purpose of this chapter is to set out the principles of chemical kinetics as they apply to combustion in flames and fires. Chemical equilibrium, which was discussed in a previous chapter, deals with the final preferred state of a given set of reactants

Floquet engineering topological Dirac bands

July 22, 2022
Author(s)
Ian Spielman, Mingwu Lu, Amilson R. Fritsch, Graham Reid, Alina Pineiro Escalera
We experimentally realized a time-periodically modulated 1D lattice for ultracold atoms featuring a pair of linear bands, each associated with a Floquet winding number: a topological invariant. These bands are spin-momentum locked and almost perfectly

WELD TRACK DISTORTION IN LASER POWDER BED FUSION OF NICKEL SUPERALLOY 625

July 11, 2022
Author(s)
Jason Fox, Christopher Evans, Aarush Sood, Romaine Isaacs, Brigid Mullany, Angela Allen, Ed Morse
Laser powder bed fusion (LPBF) is one of a group of manufacturing technologies capable of producing complex structures and surfaces in small batches and with reduced lead time. Materials ranging from light metals (e.g., aluminum alloys) to high temperature

Reference Materials for Phase Equilibrium Studies. 1. Liquid-Liquid Equilibria (IUPAC Technical Report)

July 8, 2021
Author(s)
Ala Bazyleva, William E. Acree, Jr., Robert D. Chirico, Vladimir Diky, Glenn T. Hefter, Johan Jacquemin, Joe W. Magee, John P. O'Connell, James D. Olson, Ilya Polishuk, Kurt Schmidt, John M. Shaw, J. P. M. Trusler, Ronald D. Weir
This article is the first of three projected IUPAC Technical Reports resulting from IUPAC Project 2011-037-2-100 (Reference Materials for Phase Equilibrium Studies). The goal of that project was to select reference systems with critically evaluated

A Case Study of Medical Device Wireless Coexistence Evaluation

October 1, 2020
Author(s)
Mohamed Al-Kalaa, Joshua Guag, Seth Seidman, Yao Ma, Jason Coder
This article aims to provide a narrative for addressing wireless coexistence in medical devices to help medical device developers, test engineers, and regulatory affairs personnel throughout the device life cycle. Accordingly, we present a case-study

REFERENCE VALUES AND REFERENCE CORRELATIONS FOR THE THERMAL CONDUCTIVITY AND VISCOSITY OF FLUIDS

June 22, 2018
Author(s)
Marc J. Assael, A.E. Kalyva, S.A. Monogenidou, Marcia L. Huber, Richard A. Perkins, Daniel G. Friend, Eric F. May
In this paper reference values and reference correlations for the thermal conductivity and viscosity of pure fluids are presented. Reference values and correlations for the thermal conductivity and the viscosity of pure fluids provide thoroughly evaluated
Displaying 976 - 1000 of 1947
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