Skip to main content
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.

Projects/Programs

Topic Area
Displaying 1576 - 1600 of 1644

Understanding Flow Meters

Ongoing
Critical flow venturis (CFVs) are widely used for gas flows of 1 L/min or more, if a significant pressure drop is acceptable. Theoretical discharge coefficient ( Cd): A calculated value of the discharge coefficient allows 0.3% uncertainty from a CFV from a low uncertainty throat diameter measurement

Understanding Internet Performance from the User Perspective Project

Ongoing
As part of a DARPA sponsored project, the SED work is one of the three elements. The SED element involves providing Web based capabilities for exploratory data analysis, doing research on statistical modeling, and contributing to collaborative research among XIWT member companies. This is a very

Understanding Protein Solution Phase Behavior via Coarse-Grained Modeling

Ongoing
Intended Impact Because biological systems span a broad range of length and time scales, they cannot be studied effectively using conventional all-atom simulations. While hardware advances represent one route to improving the computational tractability of simulating biological systems, significant

Unfolding and Aggregation of Therapeutic Proteins

Completed
A stable protein formulation is essential to the safety of mAb drugs. In particular, mAb drug solutions formulated at high concentrations can undergo various biophysical instabilities, such as aggregation and liquid-liquid phase separation. These undesired solution properties are primarily driven by

Uniaxial Tension Beyond Necking

Ongoing
A major limitation of the uniaxial tensile test (ASTM E8) is that after a certain amount of tensile strain, the sample eventually undergoes a mechanical instability - it forms a neck. Although the sample continues to plastically deform, the stress can no longer be unambiguously determined as load

Uniform Unit Pricing: Tools for Consumers to Fight Shrinkflation

Ongoing
What is Unit Pricing? The pricing of goods based on the cost per unit of measure is commonly known as unit pricing. A unit price label often displays the product name and size, the price, the price per unit (e.g., how much you pay per gram, liter, or ounce), and other information. Unit pricing is

United States Government Configuration Baseline

Ongoing
For more information regarding the U.S. Government Configuration Baseline (USGCB), (formerly the Federal Desktop Core Configuration (FDCC), please visit the Computer Security Resource Center (CSRC).

Universal Microscopy Standards

Ongoing
Microscopy standards that are available today have inadequate performance characteristics. As device linewidths decrease toward physical limits, the international roadmap of devices and systems (IRDS) has set uncertainty targets by the year 2025. This target is hard to hit, challenging the industry

Universal Quantum Bus

Ongoing
The goal to develop quantum computers—a long-awaited type of computer that could solve otherwise intractable problems, such as breaking complex encryption codes—has inspired scientists the world over to invent new devices that could become the brain and memory of these machines. Many of these tiny

University of Texas, Arlington - RFID Smart Container Study

Ongoing
Standardizing Future Smart and Connected Forensic Evidence Rooms Hosted workshop highlighting recent efforts associated with Internet of Things (IOT) Based AutoID Technologies usage in the chain of custody (COC) as catalyst for trendsetting across the U.S. in regards to the automation of

Usability for Biometric Systems

Ongoing
In order to improve the usability of biometric systems, it is critical to take a holistic approach that considers the needs of users as well as the entire experience users will have with a system, including the hardware, software and instructional design of a system. Adopting a user-centric view of

Usability and Public Safety Communications Research

Ongoing
First responders in public safety respond to emergency incidents to serve and protect their communities. The voices of first responders have often not been taken into consideration, especially when technology is developed for them but not with them. The National Institute of Standards and Technology

Usability Standards

Ongoing
We participate on the ISO/IEC JTC 1/SC 7 and ISO/TC 159/SC 4 as the WG28 Joint Working Group, US delegation co-convener, to develop standards for usability documentation. This family of standards provide a definition of the type and scope of formats and the high-level structure to be used for

Usability Testing

Ongoing
Usability testing refers to evaluating a product by testing it with representative users performing representative tasks. The goal is to identify any usability problems by collecting quantitative (e.g., time on task, errors and successful completion rates) and qualitative (e.g., comments, likes or

AI User Trust

Ongoing
The Visualization and Usability Group’s AI User Trust project provided foundational work for our new AI User Trust Measurement research, and continues to inform our larger Human-Centered AI program. Please read more about our current work on those pages. The information that follows is maintained

USGv6 Program

Ongoing
OMB has directed [ OMB-2020, OMB-2010, OMB-2005] the National Institute of Standards and Technology (NIST) to develop the technical infrastructure (standards and testing) necessary to support wide-scale adoption of IPv6 in the US Government (USG). In response, NIST developed a technical standards

Using AI to Determine Structure-Property Relations in Materials

Ongoing
The Material Measurement Lab at NIST employs artificial intelligence for the prediction and discovery of materials characteristics. Our applications of artificial intelligence (AI) accelerate materials research as well as help the community learn about AI's capabilities and gain confidence in

Using Geodesics in Cell Cytometry

Ongoing
This project involves image cytometry, mathematics and statistics. Understanding cellular responses to stimuli, such as pharmaceuticals or environmental toxins and discovering correlations between cellular responses and the cell phenotype are applications motivating this work. Change in shape is a

Using Quantum Information for Thermodynamics

Ongoing
We re-envision thermodynamics using the mathematical and conceptual toolkit of quantum information theory. We call this research “quantum steampunk,” after the steampunk genre of art, literature, and film that juxtaposes Victorian settings with futuristic technologies. Leveraging quantum

USNWG Field Reference Meters: Coriolis Mass Flow Meters

Ongoing
Customers and businesses alike rely on metering systems to monitor and deliver their liquid-based commercial products (including a range of gas and fuels) consistently over time and across a range of locations. Weights and measures officials use several well-acknowledged field test standards to

Validating A.I. Pipelines for Analysis of Live Cell Image Data

Ongoing
We are exploring methods for very high-speed cell image data collection, which is enabling the repeated sampling of thousands of cells every 2 minutes. Rapid sampling allow us to observe dynamic processes in cells (such as cell division) on a relevant time scale. Such rates of sampling allows us to

Validation of ASCE 41 Procedures in PBSE

Completed
Objective - The objective of this study is to advance first-generation performance-based seismic engineering (PBSE) methods by assessing the performance of a set of code-compliant buildings using ASCE/SEI 41 methodologies. This study focuses on steel buckling-restrained braced frames (BRBFs) and

Validation of Density Functional Theory for Materials

Completed
A variety of systems will be considered in this work: Pure and alloy solids will be studied using periodic DFT methods with three distinct crystal structures that are relevant to the widely-used CALPHAD (Computer Coupling of Phase Diagrams and Thermochemistry) method. This study emphasizes the

Vapor Sampling in the Field

Ongoing
Breath sampling of cannabis users. Several versions of breath collection devices are being marketed for the detection of THC (delta-9-tetrahydrocannabinol) in the breath of cannabis users. THC is not directly correlated to intoxication but may indicate recent smoking or vaping. THC and other

Vapor Sampling to Support Public Safety and Forensics

Ongoing
Vapor pressures of unstable, reactive compounds. Over the last decade, our group has investigated a variety of low-volatility compounds including taggants (found in explosives), biofuels, terpenes and cannabinoids. Dynamic vapor microextraction (DVME), developed at NIST, is a small-volume dynamic
Was this page helpful?