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 11551 - 11575 of 13225

Self-Compacting Concretes Using Fly Ash and Fine Limestone Powder: Shrinkage and Surface Electrical Resistivity of Equivalent Mortars

Author(s)
Alejandro Duran-Herrera, Juan De-Leon-Esquival, Dale P. Bentz, P Valdez
… strict fresh stage properties that are of major concern in quality assurance. To ensure stable and robust fresh stage … ash (FA) has been used, but because it can induce delays in times of setting, it is not as extensively used as it … (L) have been effectively used to counteract the delays in the times of setting of concrete with high volumes of fly …

The Contribution of Tool Testing to the Challenge of Responding to an IT Adversary

Author(s)
James R. Lyle
… If the accuracy of any tools is successfully challenged in a court of law, then any results based on the tools can be … wants to know the limitations of any tools used in an investigation. This can best be accomplished by an … (CFTT) project at the National Institute of Standards and Technology (NIST) in the United States. Currently, the CFTT …

An Investigation of Applications of Neural Style Transfer to Forensic Footwear Comparison

February 13, 2023
Author(s)
Gregory Stock
… For example, NST can be used to create an image of a cat in the style of Van Gogh's \emphStarry Night}. This study … pseudo crime scene images that can be used, for example, in training impression recognition algorithms. This is useful … We compare the crime scene image to each of the shoes in the lineup using an algorithm that computes similarity …

Modeling the Effects of Outdoor Use of Gasoline Powered Generators on Indoor Carbon Monoxide Levels

October 26, 2009
Author(s)
Liangzhu Wang, Steven Emmerich
… CO poisoning incidents during the hurricane season in 2005 involved generators operated outdoors but within … However, the use of short extension cords may result in placement of the generator too close to avoid the home to … as inputs for predictions of transient CO profiles in different rooms of the house. Results For the house …

Assessment of the Accuracy of the MOBY Spectral Radiance Calibration Sources Using the SXR and the VXR

October 1, 2000
Author(s)
Bettye C. Johnson, Howard W. Yoon, M Feinholz, D K. Clark
… instruments operated by the MOBY team are used to provide in situ measurements of water-leaving spectral radiance, … radiometers have been used at the MOBY calibration site in Honolulu, Hawaii to provide an independent assessment of … This paper presents the results of the SXR comparison in 1996 and the VXR comparisons in 1999 and 2000. For the …

Functional Recovery Performance Targets Workshop Report

September 30, 2025
Author(s)
Lucy Arendt, Katherine Johnson, Siamak Sattar, Michael Valley, Divya Chandrasekhar, Laurie Johnson, Ryan Kersting
… Held in October 2024, the Workshop on Functional Recovery … was hosted by the National Institute of Standards and Technology (NIST) and managed by the Applied Technology Council (ATC-169). The workshop convened 48 …

IG3IS Urban Greenhouse Gas Emission Observation and Monitoring Best Research Practices

August 1, 2022
Author(s)
Jocelyn Turnbull, Philip DeCola, Kimberly Mueller, Felix Vogel, Anna Karion, Israel Lopez Coto, James Whetstone
… guidance on current state of the art technologies in urban greenhouse gas information systems. It lays out the … each methodology. There are many unresolved challenges in this evolving field of research, and we include discussion … Measures (BIPM), US National Institute of Standards and Technology (NIST) and other metrology organisations will work …

NMR and Metabolomics -A Roadmap for the Future

July 23, 2022
Author(s)
Tracey Johnston, David Wishart, Leo Cheng, Valerie Copie, Arthur Edison, Hamid Eghbalnia, Jeffrey Hoch, Goncalo Gouveia, Wimal Pathmasiri, Robert Powers, Llyod Sumner, Mario Uchimiya
… (LC-MS) methods are becoming increasingly popular in the field of metabolomics (accounting for more than 70% of … widely available in hospitals.3 Advances in NMR magnet technology are making NMR instruments smaller, cheaper, … and more clinically compatible. Advancements in magnet technology is also leading to higher field strengths than …

Protein Particles (0.1 ym to 100 ym)

October 15, 2015
Author(s)
Dean C. Ripple, Linda Narhi
… Protein molecules in solution can form proteinaceous particles by a variety of … important quality attribute for therapeutic MAb solutions. In this chapter, we describe the techniques commonly used to determine size and count of particles in solution for the size range 1 µm to 100 µm. After first …

Characterization of Nanoporous Low-k Thin Films by Contrast Match SANS

April 1, 2003
Author(s)
R C. Hedden, Barry J. Bauer, Hae-Jeong Lee
… is used to characterize matrix properties and pore size in nanoporous low-k thin films. Using a vapor adsorption … subsequently used to conduct SANS porosimetry experiments. In combination with information from specular X-ray … Research Society Symposia Proceedings | | Materials, Technology and Reliability for Advanced Interconnects and …

Effect of Aluminum Flake Orientation on Coating Appearance

November 1, 2001
Author(s)
Li Piin Sung, Maria E. Nadal, M E. McKnight, Egon Marx, R Dutruc-Rosset, B Laurenti
… The orientation of platelet-like pigments in coatings is affected by the processing conditions resulting in appearance variations of the final product. A set of … Program of the FSCT | Federation of Societies for Coatings Technology, FSCT …

Comparison of FPETool:FIRE SIMULATOR With Data From Full Scale Experiments.

August 10, 1997
Author(s)
R L. Vettori
… three experimental studies consisted of full scale testing in a chemical laboratory, an aircraft hanger, and a mock up … and fire growth. Depending on the information presented in the original study, an attempt is made to model some or … were then compared to the experimental results as reported in the original studies. Results from these comparisons …

Brand Lofting Above Large-Scale Fires.

August 3, 1997
Author(s)
J P. Woycheese, P J. Pagni, D Liepmann
… Although lofting of burning brands in forest fires has received considerable attention, little … This mechanism of fire spread is of particular importance in post-earthquake and urban/wildland intermix fires. The 20 … (2nd). Proceedings. National Institute of Standards and Technology (NIST) and Society of Fire Protection Engineers …

Electron Spin Resonance Sensor for Portable and Adaptable Retrospective Dosimetry

April 24, 2026
Author(s)
Pragya Shrestha, Kin Cheung, Robert Gougelet, Stephen Moxim, Ileana Pazos, Jason Campbell
… tools for radiation dosimetry has increased in recent years. The development of a new, highly portable … a signifi-cant breakthrough with potential applications in a wide range of fields, including medical physics, … to the advancement of portable instrumentation technology. …

Dietary Supplement Laboratory Quality Assurance Program: Exercise 3 Final Report

September 4, 2025
Author(s)
Jenna Klingsick, Hugh Hayes, Elena Wood
… The National Institute of Standards and Technology (NIST) Dietary Supplement Laboratory Quality Assurance Program (DSQAP) was launched in 2007 as a collaboration with the National Institutes of … marker compounds, toxic elements, and/or contaminants in dietary supplement raw materials, ingredients, and …

NIST Research Grade Test Materials: A New Collaborative Effort to Address Measurement Challenges

May 1, 2025
Author(s)
Peter Vallone, Lisa Borsuk, Carolyn Steffen, Sarah Riman, Kevin Kiesler, Erica Romsos
… template, degraded, and complex DNA mixtures encountered in forensic laboratories have evolved. In turn, the forensic DNA typing community has requested more … methods.  The stochastic nature of these measurements, in tandem with the goal of reproducibly providing …

Impact-Ionization-Based High-Endurance One-Transistor Bulk CMOS Cryogenic Memory

March 31, 2025
Author(s)
Pragya Shrestha, Alexander Zaslavsky, Valery Ortiz Jimenez, Jason Campbell, Curt Richter
… one-transistor (1T) cryogenic memory, fabricated in a 180 nm bulk CMOS technology, with a high memory window of (107 I1/I0 sense … times of > 10 s with a 30 X memory window were observed in extensive high-speed measurements. The fast switching and …

Photonic Millimeter-wave Generation Beyond the Cavity Thermal Limit

February 11, 2025
Author(s)
William Groman, Igor Kudelin, Takuma Nakamura, Yifan Liu, Charles McLemore, Franklyn Quinlan, Scott Diddams, Dahyeon Lee, Megan Kelleher, Joel Guo, Warren Jin, John Bowers
… using already exisiting, integrable photonic technologies. In particular, we generate 94.5 GHz and 118.1 GHz … into a platform less than $10 \hspace3 pt}\textmL}$ in volume, this work illustrates the potential of low size, …

Fabrication and characterization of low-loss Al/Si/Al parallel plate capacitors for superconducting quantum information applications

January 22, 2025
Author(s)
Raymond Simmonds, Sudhir Sahu, Trevyn Larson, Florent Lecocq, Tongyu Zhao, Anthony McFadden
… of aluminum-contacted, crystalline silicon fins for use in superconducting circuits is explored by evaluating the … process. The single-crystal Si capacitors are incorporated in lumped element resonators and transmons by shunting them … 25µs. These results suggest that Si-Fins are a promising technology for applications that require low loss, compact, …

Detecting Features of Antibody Structure Through Their Mediator-accessible Redox Activities

December 2, 2024
Author(s)
Dana Motabar, Eunkyoung Kim, Jinyang Li, Zhiling Zhao, Catherine Mouchahoir, David Travis Gallagher, John E. Schiel, Mamatha Garige, Carole Sourbier, Gregory F. Payne, William Bentley
… standard (from the National Institute of Standards and Technology) and focused on the electronic detection of … (within minutes) and quantitatively detect alterations in the antibody's structural features and produce robust …

Value assignment and uncertainty evaluation for certified reference gas mixtures

September 9, 2024
Author(s)
Christina Cecelski, Jennifer Carney, Antonio Possolo
… their associated uncertainties, which are described in ISO 6143, and that were variously improved by Guenther and … measurement results. These developments are illustrated in examples of certification of two gas mixture Standard … developed by the National Institute of Standards and Technology (NIST, USA). These examples serve only to …

5G NR and LTE Downlink Coexistence Measurements Using Software-Defined Radios

August 20, 2024
Author(s)
Nadia Yoza Mitsuishi, Yao Ma, Jason Coder
… With the rapid deployment of 5G New Radio (NR) in the sub-6 GHz frequency bands, cellular operators need to accommodate this new technology within the limited spectrum licensed to them, … infrastructure to 5G, while supporting current 4G systems in the same band. This indicates a need for wireless …
Displaying 11551 - 11575 of 13225
Was this page helpful?