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NIST Pubs

Development of a Flashover Prediction Model for Compartment Fires Using Support Vector Regression

April 1, 2022

Author(s)

Wai Cheong Tam, Jun Wang, Richard D. Peacock, Paul A. Reneke, Eugene Yujun Fu, Thomas Cleary

This report provides additional technical details to an article entitled P-Flash – A Machine Learning-based Model for Flashover Prediction using Recovered...

Economic Analysis of ASCE 7-22 Tornado Load Requirements

March 30, 2022

Author(s)

Joshua D. Kneifel, Marc Levitan, Blake Haney, Benchmark Harris, Thomas Smith, David Butry, Patrick Crawford, Nicholas de Toledo, Douglas Thomas

Disinfection of Respirators with Ultraviolet Radiation

March 25, 2022

Author(s)

Dianne L. Poster, Matthew Hardwick, C Cameron Miller, Michael A. Riley, W. W. Shanaka I. Rodrigo, Andras E. Vladar, John D. Wright, Christopher D. Zangmeister, Clarence Zarobila, Jeremy Starkweather, John Wynne, Jason Yilzarde

Data for interpreting virus inactivation on N95 face filtering respirators (FFRs) by ultraviolet (UV) radiation are important in developing UV strategies for...

Federal Cybersecurity Awareness Programs A Mixed Methods Research Study

March 25, 2022

Author(s)

Julie Haney, Jody Jacobs, Susanne M. Furman

Prior industry surveys and research studies have revealed that organizational security awareness programs may face a number of challenges, including lack of...

Approaches and Challenges of Federal Cybersecurity Awareness Programs

March 25, 2022

Author(s)

Julie Haney, Jody Jacobs, Susanne M. Furman

Organizational security awareness programs may experience a number of challenges, including lack of resources, difficulty measuring the impact of the program...

The Federal Cybersecurity Awareness Workforce: Professional Backgrounds, Knowledge, Skills, and Development Activities

March 25, 2022

Author(s)

Julie Haney, Jody Jacobs, Susanne M. Furman

Organizational security awareness programs may experience a number of challenges, including lack of funding and staff with the appropriate knowledge and skills...

Indoor Carbon Dioxide Metric Analysis Tool

March 25, 2022

Author(s)

Andrew K. Persily, Brian Polidoro

Indoor carbon dioxide (CO2) concentrations have been used for decades to evaluate indoor air quality (IAQ) and ventilation, and more recently in discussions of...

Gauging Difficulty of Image Segmentation

March 25, 2022

Author(s)

Marek Franaszek

Image segmentation is the first step in a complex process of object recognition. This report presents a method to gauge the difficulty of segmentation by...

Spreadsheet-Based Software for the Analysis of Unloading Compliance Fracture Toughness Tests in Accordance with ASTM E1820

March 25, 2022

Author(s)

Enrico Lucon

NIST has developed a user-friendly spreadsheet-based software for the analysis of elastic-plastic fracture toughness tests conducted according to ASTM E1820-20b...

Mixture Models for Refrigerants R-1234yf/134a, R-1234yf/1234ze(E), and R-134a/1234ze(E) and Interim Models for R-125/1234yf, R-1234ze(E)/227ea, and R-1234yf/152a

March 18, 2022

Author(s)

Ian Bell

In this work, new thermodynamic models for refrigerant mixtures are provided for the binary pairs R-1234yf/134a, R-1234yf/1234ze(E), and R-134a/1234ze(E) based...

Certification of Standard Reference Material 3289 Multivitamin Tablets

March 18, 2022

Author(s)

Hugh Hayes, Jerome Mulloor, Michael Nelson, Kate Rimmer, Lee L. Yu, James H. Yen

Standard Reference Material® (SRM®) 3289 Multivitamin Tablets was developed as part of a collaborative effort between the National Institute for Standards and...

NIST Time and Frequency Bulletin

March 17, 2022

Author(s)

Kelsey Rodriguez

The Time and Frequency Bulletin provides information on performance of time scales and a variety of broadcasts (and related information) to users of the NIST...

Protecting Information and System Integrity in Industrial Control System Environments: Cybersecurity for the Manufacturing Sector

March 16, 2022

Author(s)

Michael Powell, Michael Pease, Keith A. Stouffer, CheeYee Tang, Timothy Zimmerman, Chelsea Dean, Kangmin Zheng, John Hoyt, Mary Raguso, Joseph Brule, Aslam Sherule, Matthew Zopf

Today's manufacturing organizations rely on industrial control systems (ICS) to conduct their operations. Increasingly, ICS are facing more frequent...

Assessing Enhanced Security Requirements for Controlled Unclassified Information

March 15, 2022

Author(s)

Ronald S. Ross, Victoria Yan Pillitteri, Kelley L. Dempsey

The protection of Controlled Unclassified Information (CUI) in nonfederal systems and organizations is important to federal agencies and can directly impact the...

Towards a Standard for Identifying and Managing Bias in Artificial Intelligence

March 15, 2022

Author(s)

Reva Schwartz, Apostol Vassilev, Kristen K. Greene, Lori Perine, Andrew Burt, Patrick Hall

As individuals and communities interact in and with an environment that is increasingly virtual they are often vulnerable to the commodification of their...

Calorimetry in Computed Tomography Beams

March 10, 2022

Author(s)

Heather H. Chen-Mayer, Ronald Tosh, Fred B. Bateman, Paul Bergstrom, Brian E. Zimmerman

A portable calorimeter for direct realization of absorbed dose in medical computed tomography (CT) procedures was constructed and tested in a positron emission...

New International Formulation for the Thermal Conductivity of Heavy Water

March 9, 2022

Author(s)

Marcia L. Huber, Richard A. Perkins, Marc Assael, Stella Monogenidou, Robert Hellmann, Jan Sengers

The International Association for the Properties of Water and Steam (IAPWS) has adopted a new formulation for the thermodynamic properties of heavy water. This...

The NIST Vacuum Double-Crystal Spectrometer: A Tool for SI-Traceable Measurement of X-Ray Emission Spectra

March 9, 2022

Author(s)

Csilla Szabo-Foster, James Cline, Albert Henins, Lawrence T. Hudson, Marcus Mendenhall

The NIST Vacuum Double-Crystal Spectrometer (VDCS) has been modernized and is now capable of recording reference-free wavelength-dispersive spectra in the 2 keV...

A Tool to Model Virus Particle Exposure in Residences (ViPER)

March 9, 2022

Author(s)

Stephen Zimmerman, Brian Polidoro, Lisa Ng, William Stuart Dols, Steven Emmerich

Virus Particle Exposure in Residences (ViPER) is a web-based, single zone indoor air quality and ventilation analysis tool developed by the National Institute...

Implementation of DevSecOps for a Microservices-based Application with Service Mesh

March 8, 2022

Author(s)

Ramaswamy Chandramouli

Cloud-native applications have evolved into a standardized architecture consisting of multiple loosely coupled components called microservices (often typically...

2021 NIST Center for Neutron Research Accomplishments and Opportunities

March 7, 2022

Author(s)

Steven Kline

A Peg-in-Hole Test and Analysis Method for Exoskeleton Evaluation

March 7, 2022

Author(s)

Ann Virts, Roger V. Bostelman, Soocheol Yoon, Ya-Shian Li-Baboud, Mili Shah

Work-place MusculoSkeletal Disorders (WMSD) continue to be the most significant source of industrial work force injuries. Exoskeletons are emerging as personal...

Inflow Turbulence Effects on Large Eddy Simulations of the Flow around an Axisymmetric Hill

March 7, 2022

Author(s)

Rikhi Bose, Emil Simiu

Turbulent flow around an axisymmetric hill at Reynolds number Re H ∼ 1.3 × 10 5 with respect to the hill height is studied using resolved large-eddy simulations...

Life Cycle Environmental Impacts of Plastics: A Review

March 1, 2022

Author(s)

Paul Rikhter, Ilayda Dinc, Yirui Zhang, Ted Jiang, Bobby Miyashiro, Shelby Walsh, Ruoyu Wang, Yvonne Dinh, Sangwon Suh, Joshua D. Kneifel

Global production and consumption of plastics and its deposition in the environment are growing rapidly, while their life-cycle impacts to the environment are...

WUI Structure/Parcel/Community Fire Hazard Mitigation Methodology

March 1, 2022

Author(s)

Alexander Maranghides, Eric Link, Shonali Nazare, Steven Hawks, Jim McDougald, Stephen Quarles, Daniel Gorham

In the last twenty years, wildland-urban interface (WUI) fires have been growing in severity and size. The structures destroyed by WUI fires have devastated...

Porosity, Powder X-Ray Diffraction Patterns, Skeletal Density, and Thermal Stability of NIST Zeolitic Reference Materials RM 8850, RM 8851, and RM 8852

March 1, 2022

Author(s)

Huong Giang Nguyen, Ran Tao, Roger D. van Zee

This paper reports the powder X-ray diffraction patterns, argon isotherms at 87 K, Brunauer–Emmett–Teller surface areas, pore size distributions, pore volumes...

Characterization Method of Ionization Chamber Type Detectors

February 25, 2022

Author(s)

Leticia Pibida, Ronaldo Minniti, Miles McCord

A wide variability in accuracy exists among commercial radiation detection instruments used to measure exposure rate or ambient dose equivalent rate. These...

Verifying Executability of SysML Behavior Models Using Alloy Analyzer

February 24, 2022

Author(s)

Jeremy Doerr, Conrad Bock, Raphael Barbau

This report presents an approach to verifying executability of system behavior models by treating them as logical constraint problems solved using Alloy...

Workshop Report: Novel and Emerging Test Methods and Metrics for Effective HRI, ACM/IEEE Conference on Human-Robot Interaction, 2021

February 24, 2022

Author(s)

Shelly Bagchi, Jeremy Marvel, Megan Zimmerman, Murat Aksu, Brian Antonishek

This report details the third annual, full-day workshop exploring the state-of-practice in the metrology necessary for repeatably and independently assessing...

Acceptance Testing Methodology for the Production of Standard Reference Material 2806: Medium Test Dust in Hydraulic Fluid

February 24, 2022

Author(s)

Robert A. Fletcher, James J. Filliben, Nicholas Ritchie

Standard Reference Material (SRM) 2806: Medium Test Dust in Hydraulic Fluid represents a series of reference materials certified by the National Institute of...

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