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Search Publications

NIST Authors in Bold

Displaying 9626 - 9650 of 13225

Uncertainty Quantification of Stresses in a Cracked Pipe Elbow Weldment Using a Logistic Function Fit, a Nonlinear Least Squares Algorithm, and a Super-Parametric Method

December 30, 2015
Author(s)
Jeffrey T. Fong, James J. Filliben, Nathanael A. Heckert, Pedro V. Marcal, Robert Rainsberger, Li Ma
… In a 3-part series of papers, of which this paper is Part II, … of a welded pipe elbow with a longitudinal surface crack in one of its welds. (2) The solid-element-based analysis of … (4) The shell-element-based analysis of a barrel vault. In this paper, we develop a two-step method first to estimate …

Advanced Image Composition with Intra-Frame Drift Correction

July 19, 2011
Author(s)
Petr Cizmar, Andras Vladar, Michael T. Postek
… or fast imaging methods.[Ref.] It is especially useful in nanometer-scale imaging and metrology. Further improvement … adding intra-frame drift correction as an additional step in image-frame processing before the final composition. The … applying correction for drift-related distortions within in the individual frames, which are used in the composition …

New NIST Photomask Linewidth Standard

December 1, 2002
Author(s)
James E. Potzick, J Pedulla, Michael T. Stocker
… NIST is preparing to issue the next generation in its line of binary photomask linewidth standards. Called … (not just the repeatability) of each length comparison in the metrology chain between the definition of the meter and the NIST linewidth standard.This process results in a confidence interval about the calibration result that …

Photomask Dimensional Metrology in the SEM: Has Anything Really Changed?

December 1, 2002
Author(s)
Michael T. Postek, Andras Vladar, Marylyn H. Bennett
… Photomask dimensional metrology in the scanning electron microscope (SEM) has not evolved as … This has been due partly to the 4x (or 5x) reduction in the optical steppers and scanners used in the lithography process, and partly to the lesser need to … of SPIE, 22nd Annual BACUS Symposium on Photomask Technology, Brian J. Grenon, Kurt R. Kimmel, Editors …

Apparatus for Light Scattering Studies of Smoke Particles

March 25, 2001
Author(s)
George W. Mulholland, D W. Weinert
… a measure of the light scattering strength of a particle in units of area per mass. The light scattering apparatus used in these measurements has provided repeatable results over a … range of 3 to 4 orders of magnitude. Uncertainties lie in the range of 10 % to 20 % and are mainly due to the …

Critical Gaps in Durability Data for FRP Composites in Civil Infrastructure

May 1, 2000
Author(s)
V M. Karbhari, Joannie W. Chin, D R. Reynaud
… questions related to the durability of these materials in a civil engineering environment. This concern is … are primarily load bearing and are expected to be in service, without substantial inspection or maintenance, … Development Alliance (MDA) to identify critical gaps in data needed for such applications. The study focuses on …

Analysis of High Bay Hangar Facilities for Detector Sensitivity and Placement.

March 26, 1996
Author(s)
Kathy A. Notarianni, William D. Davis, Darren Lowe, J E. Gott, S Laramee
… of various fire detectors and automatic sprinklers in high bay aircraft hangars. Laboratory and full-scale … understand the movement of heat and products of combustion in high bay spaces. Temperature distribution across the … Communications Ltd.; National Institute of Standards and Technology; Building Research Establishment; and Society of …

Magnetic Imaging via Scanning Electron Microscopy with Polarization Analysis

January 1, 1991
Author(s)
Robert Celotta, M Scheinfein, John Unguris, Daniel T. Pierce
… NATO Advanced Study Institute Conference Held in Aghia Pelaghia … Science and Technology of Nanostructured Magnetic Materials: Proceedings … of a NATO Advanced Study Institute Conference Held in Aghia Pelaghia …

Comparative Transcriptomic Analysis of Perfluoroalkyl Substances-Induced Responses of Exponential and Stationary Phase Escherichia coli

November 7, 2025
Author(s)
Molly Wintenberg, Olga Vasilyeva, Samuel Schaffter
… However, little is known about how microorganisms in various environments and growth phases respond to diverse PFAS. In this study, we performed RNA sequencing at … analysis revealed PFOA and PFDoA induced distinct changes in gene expression throughout cultivation. Specifically, we …

2024 NIST GenAI (Pilot Study): Text-to-Text Evaluation Overview and Results

June 25, 2025
Author(s)
Hariharan Iyer, Seungmin Seo, Lukas Diduch, Kay Peterson, George Awad, Yooyoung Lee
… aims to measure the effectiveness of AI-generated text in mimicking human writing and the ability of AI-based … writing, detection models remain reasonably effective in distinguishing between them. Performance varies … technologies, guiding both researchers and policymakers in understanding their evolving impact. …

ZandrEA Software in Research to Automate Fault Detection and Diagnostics of Mechanical Systems in Large Commercial Buildings -- A Primer

April 10, 2025
Author(s)
Daniel Veronica
… Mechanical systems in large commercial buildings, particularly their heating, … and industrial communities interested in advancing the technology of AFDD, and in supporting the transfer of that technology into marketable products and services. … ZandrEA Software in Research to Automate Fault Detection and Diagnostics of …

Performance of NIST SRM(R) 2917 with 13 Recreational Water Quality Monitoring qPCR Assays

February 10, 2022
Author(s)
Jessica Willis, Mano Sivaganesan, Richard Haugland, Jason Kralj, Stephanie Servetas, Monique Hunter, Scott Jackson, Orin Shanks
… for recreational water quality management worldwide. In response, there is a growing interest in the use of real-time quantitative PCR (qPCR) methods to … assessment of the National Institute of Science and Technology Standard Reference Material 2917 (NIST SRM® 2917), …

Demonstration of an all-in-one solution for fire safe upholstery furniture: A benign backcoating for smoldering and flame-resistant cover fabrics

August 15, 2021
Author(s)
Ickchan Kim, Andre Thompson, Sung Chan Kim, Anthony Hamins, Matthew Bundy, Shonali Nazare, Rick D. Davis, Mauro Zammarano
… environmental profile has become of particular interest in the USA due to the recent adoption of state regulations … that severely restrict the use of flame retardants in certain products, like residential upholstered furniture … (RUF). Herein, the effectiveness of a backcoating technology in RUF is demonstrated. The backcoating is a …

Design and Capabilities of the Assistive Clock Fusion Testbed

February 4, 2021
Author(s)
Dhananjay Anand
… The National Institute of Standards and Technology (NIST) has been working with industry and academia … to improve the resilience of timing subsystems used in high-performance sensing and control hardware. Resilience … and optimization is needed to prove their efficacy. In order to test these fusion methods and evaluate them, a …

Global City Teams Challenge Public Safety SuperCluster Progress Report 2018-2019

March 31, 2020
Author(s)
Sokwoo Rhee, Brenda Bannan, Samantha Dubrow, Michael Dunaway, Dean Skidmore, Elisa Torres
… and interoperability of technologies and systems. In parallel, GCTC’s Public Safety SuperCluster (PSSC) sought to bring together domain experts in public safety to discuss the latest issues and … of the first in a planned series of reports on use cases, technology demonstrations, and exercise summaries involving …

Engineered Sulfur-MoS2-Graphene Heterostructure Cathodes for Diagnostics of Nanoscale Electrochemical Processes in High Energy Density Li-S Batteries

August 5, 2019
Author(s)
Vladimir P. Oleshko, William R. McGehee, Saya Takeuchi, Siyuan Zhang, Andrei A. Kolmakov, Jabez J. McClelland, Christopher L. Soles
… promising candidate technologies for emerging applications in electrical transportation, portable electronics, implanted … intermediates during electrochemical conversion of sulfur in the electrolyte. This effect, known as a “polysulfide … time, thus hindering the practical realization of Li-S technology. In recent engineering approaches, sulfur and …

Building Open Access to Research (OAR) data infrastructure at NIST

July 8, 2019
Author(s)
Gretchen R. Greene
… Institute (NMI), the National Institute of Science and Technology (NIST) scientists, engineers and technology experts conduct research across a full spectrum of … as a public service within Department of Commerce in its mission to securely enhance industry and commerce …

High-coverage, long-read sequencing of Chinese trio reference samples

June 14, 2019
Author(s)
Justin M. Zook, Nathanael D. Olson, Marc L. Salit, Aaron Wenger, Chunlin Xiao, Robert Sebra
… Genome In a Bottle (GIAB) is a consortium hosted by the National Institute of Standards and Technology whose primary objective is the development and …

Ventilation, IAQ and Filtration in a Net Zero Energy House

May 24, 2018
Author(s)
Andrew K. Persily, Lisa C. Ng, Dustin G. Poppendieck, Steven J. Emmerich
… was constructed at the National Institute of Standards and Technology (NIST) to support the development and adoption of … The 250 m2 two-story, unoccupied NZERTF, built in 2012, had the following design goals: meeting the comfort … The NZERTF is one of the tightest residential buildings in North America with a whole building pressurization test …
Displaying 9626 - 9650 of 13225
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