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Projects/Programs

Topic Area
Displaying 1576 - 1600 of 1652

Tutorials in Analytical Chemistry

Ongoing
Topic Links Laboratory Operations and Sample Processing Use of Analytical Balances Video N/A Volumetric Transfer of Liquids Video PowerPoint Determination of Liquid Density Video PowerPoint Preparation of Calibration Solutions Video PowerPoint Soxhlet Extractions Video PowerPoint Pressurized Fluid

Ultra-dense Networks

Ongoing
Propagation and system modeling: New propagation models are needed for ultra-dense networks. Driven by legacy cellular systems, most models currently available are tower-to-ground with base stations typically at 30 m and above. Device-to-device links, however, will be ground-to-ground: picocells on

Ultrafast Spectroscopy to Advance Microelectronics

Ongoing
Continued advancement in microelectronics, including analog and digital electronics, power electronics, optics and photonics, and micromechanics for memory, processing, sensing, and communications as defined by the OSTP “National Strategy on Microelectronics Research,” requires knowledge of material

Uncertainty analysis for autocorrelated measurement data

Ongoing
DESCRIPTION: When repeated measurements are autocorrelated, it is not appropriate to use the traditional approach to calculate the uncertainty of the average of the measurements, which assumes that the measurements are statistically independent. We need to develop approaches for assessing

Uncertainty Estimation in Interlaboratory Studies

Ongoing
DESCRIPTION: Data sets consisting of multivariate samples occur increasingly often in applications in particular in in interlaboratory studies known as Key Comparisons in which the key comparison reference value (KCRV) is to be determined. The vector samples, being independent realizations of an

Uncertainty Quantification in Computational Materials Science

Ongoing
Industry and other stakeholders increasingly rely upon simulations to inform their decisions. To make this strategy routine and reliable these simulation results must be accompanied by quantitative statements of their quality. Uncertainty quantification refers to the growing suite of tools situated

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

Completed
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
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