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 4126 - 4150 of 4199

Role of R22 in Refrigerating and Air Conditioning Equipment

March 19, 1990
Author(s)
David Didion, R. Cohen, D. R. Tree
The U. S. Environmental Protection Agency has recently performed an analysis that shows the need for nearly 100% worldwide-acceptance of total CFC phase out. The adoption of HFCs (for example R134a) and HCFCs (for example R123 and R22) alternatives, at

EPA: LAG No. DW-13-93903501-0 Expanding a Tool for Predicting Chloride Diffusivity in Concrete So It Can Be Used by Manufacturers to Evaluate the Durability of Concrete Made With Blended Cements. Part I: Characterizing Blended Cement Materials. Final Repo

December 1, 2004
Author(s)
X Feng, Edward J. Garboczi, Jeffrey W. Bullard, Dale P. Bentz, Kenneth A. Snyder, Paul E. Stutzman, T O. Mason
… Chloride Diffusivity in Concrete So It Can Be Used by Manufacturers to Evaluate the Durability of Concrete Made …

SRM 482 Revisited After 30 Years

August 1, 2001
Author(s)
Eric S. Windsor, R Carlton, Scott A. Wight, C Lyman
… minimize contamination and maximize homogeneity during the manufacturing process [3]. Each of the 6 wires was drawn as a …

Morphologic alterations across three levels of biological organization following oral exposure to silver-polymer nanocomposites in Japanese medaka (Oryzias latipes)

July 5, 2024
Author(s)
Melissa Chernick, Alan Kennedy, Treye Thomas, Keana C. K. Scott, Joana Sipe, Christine Hendren, Mark Wiesner, David Hinton
Polymer nanocomposites have diverse industrial and commercial uses. While many toxicity studies have assessed the individual materials (e.g., polymer, nanomaterial) comprising nanocomposites, few have examined the potential toxicity of the nanocomposite as

Rapid Analysis of Drugs: A Tool to Detect Drug Overdose Spikes, Build Trust Among People Using Drugs and Reduce Overdoses - Maryland, November 2021 - August 2022

April 28, 2023
Author(s)
Erin Russell, Edward Sisco, Allison Thomson, Jasmine Lopes, Dana Heilman, Margaret Rybak, Malik Burnett, Meghan Appley, Matthew Gladden
Maryland overdose deaths increased 16%, to a record high of 2,912 deaths during the 12-month period from July 2020 to June 2021. Illicitly manufactured fentanyl and/or fentanyl analogs* contributed to 84% of these overdose deaths.† Timely public health

Chip-based laser with 1-hertz integrated linewidth

October 28, 2022
Author(s)
Joel Guo, Charles McLemore, Chao Xiang, Dahyeon Lee, Lue Wu, Warren Jin, Megan Kelleher, Naijun Jin, Lin Chang, Avi Feshali, Mario Paniccia, Peter Rakich, Kerry Vahala, Scott Diddams, Franklyn Quinlan, John Bowers
… substrates and hold the potential for parallel high-volume manufacturing. This work provides an important advance …

Development of a pregnancy-specific reference material for thyroid biomarkers, vitamin D, and nutritional trace elements in serum

October 24, 2020
Author(s)
Ashley Russell, Lisa Kilpatrick, Carolyn Burdette, Denise S. Tevis, Zachary A. Fultz, Michael Nelson, Jeff M. Jarrett, Stephen A. Wise, Brittany Kassim, Stephen E. Long
Background Concentrations of critical metabolites, hormones, and nutritional elements change significantly throughout pregnancy. Therefore, increased matrix complexity is a challenge for the measurement of these biomarkers. To provide a quality assurance

Low-NEP pyroelectric detectors for calibration of UV and IR sources and detectors

September 5, 2017
Author(s)
George P. Eppeldauer, Vyacheslav B. Podobedov, Leonard Hanssen, P. Yvonne Barnes
Pyroelectric radiometers with spectrally constant response have been developed at NIST with the cooperation of a few detector manufacturers. The new devices have noise-equivalent-power (NEP) values less than 1 nW/Hz^1/2 sufficiently low for use at the

Assessment of Factors Affecting Fire Performance of Mattresses: A Review

September 3, 2012
Author(s)
Rick D. Davis, Shonali Nazare, Kathryn M. Butler
An in-depth analysis of U.S. residential fire statistics shows that although the total number of fires and deaths due to mattress fires has dropped as a result of several regulatory approaches, the mattress/bedding fires continue to account for one of the

Effect of Dissolved Nitrogen Gas on the Density of Di-2-Ethylhexyl Sebacate: Working Fluid of the NIST Oil Ultrasonic Interferometer Manometer Pressure Standard

June 1, 2009
Author(s)
Jay H. Hendricks, Jacob R. Ricker, Justin H. Chow, Douglas A. Olson
The National Institute of Standards and Technology (NIST) Low Pressure Manometry Laboratory maintains national pressure standards ranging from 1 mPa to 360 kPa through the operation of four ultrasonic interferometer manometer (UIM) pressure standards. NIST
Displaying 4126 - 4150 of 4199
Was this page helpful?