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 4212

Assessment of Thin Film UHMWPE Bearings for Precision Slideways

August 1, 2004
Author(s)
E S. Buice, H Yang, Richard Seugling, Stephen J. Smith, R Hocken
In this extended abstract, results from tests on a novel, thin-film, Ultra-High-Molecular-Weight-Polyethylene (UHMWPE) bearing are presented. The goal of this investigation is to assess the performance and manufacture and to determine tribological

Numerical Simulation of Sprinkler Performance

February 24, 1999
Author(s)
Kevin B. McGrattan, Glenn P. Forney
Rapidly, changing building designs, uses, materials, contents, fire protection and the general intermix of industrial/commercial and residential occupancies has created a need to understand the potential hazards and losses from fires and performance of

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

Cement Hydration in the Presence of Municipal Solid Waste Incineration Fly Ash.

March 5, 1998
Author(s)
Dale P. Bentz, S Remond, P Pimienta, J P. Bournazel
Incorporating wastes into concrete on an appropriately selective basis could help to solve some of the problems encountered in waste management. Some industrial by-products (fly ash and slag for example) have been used in the manufacture of cement and

Using Sensor Data to Predict the Environment in a Building

February 25, 1998
Author(s)
Walter W. Jones, Richard D. Peacock, Glenn P. Forney, Paul A. Reneke
As transducers become more commonplace in the built environment, it is desirable to utilize this information in a more complete way to assure safety. There are two fi to doing this, incorporating our knowledge of fires and other extreme events into the

Workshop on Micromechanics Measurement Technologies for Fiber-Polymer Interfaces

May 1, 1997
Author(s)
Walter G. McDonough, Richard~undefined~undefined~undefined~undefined~undefined Parnas, Gale A. Holmes, Donald L. Hunston
The Polymers Division hosted the Workshop on Micromechanics Measurement Technologies for Fiber-Polymer Interfaces, jointly sponsored by NIST and the Textile Research Institute of Princeton, NJ, on May 28-30, 1997. Fifty researchers from industry, academia

Photomask Metrology in the Era of Neolithography

February 1, 1997
Author(s)
James E. Potzick
The appearance of smaller photomask feature sizes, high density patterns, and optical enhancements such as phase shifters and OPC features, and the increasing importance of subresolution mask characteristics, can render traditional mask metrology

Improved Photomask Metrology Through Exposure Emulation

July 1, 1995
Author(s)
James E. Potzick
The ultimate purpose of the photomask in IC manufacture is to define the image to be printed on a silicon wafer. Of the many factors which affect this aerial image in the wafer stepper, some are properties of the stepper projection system and some are

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

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 …

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 …

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
Displaying 4126 - 4150 of 4212
Was this page helpful?