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Projects/Programs

Displaying 601 - 625 of 1596

Hardness Standardization and Measurements

Ongoing
DESCRIPTION Purpose: Provide measurement traceability for the Knoop, Rockwell, and Vickers hardness scales and for coating thickness measurements that are based on magnetic methods. Goals: Harmonization of hardness and coating thickness testing protocols, in pursuit of reduction of measurement

Hardware Accelerators for Neural Networks

Ongoing
One promising candidate for building a hardware accelerator comes from the field of spintronics, where information is carried by electronic spin rather than charge. Magnetic tunnel junctions are particularly suited because of their multifunctionality and compatibility with standard integrated

Hardware Accelerators for Statistical Computing

Ongoing
Finding good solutions to many hard problems, like combinatorial optimization and traveling salesman problems, counterintuitively requires making the estimated solution worse before making it better. This situation results from many hard problems having many “solutions” that cannot be improved

HDX-MS for Biopharmaceutical Analysis

Ongoing
This project is designed to improve, test, and validate hydrogen/deuterium exchange mass spectrometry (HDX-MS) metrology for the determination of dynamical properties of therapeutic proteins and glycoproteins. The research project uses HDX-MS to measure the D-for-H exchange rates of the amide groups

Health Assessment Measurements Quality Assurance Program (HAMQAP)

Completed
Participants in the HAMQAP measured concentrations of nutritional and toxic elements, fat- and water-soluble vitamins, fatty acids, active and/or marker compounds, and contaminants in samples distributed by NIST.   Samples that represent human intake (e.g., foods, dietary supplements, tobacco) were

Health Information Technology Usability

Completed
The Health Information Technology for Economic and Clinical Health (HITECH) Act provides financial incentives and other support to drive the adoption and meaningful use of EHRs. A recent report funded by the Agency for Healthcare Research and Quality (AHRQ), however, identified key shortcomings

Health IT at NIST - Program Overview

Ongoing
As health IT has become a top priority around the nation, it is clear that standards and interoperability are key to the fulfillment of the goals of health IT: Higher quality and more efficient care. Seamless, secure, and private movement of data between healthcare providers and consumers without

Hierarchical Materials

Ongoing
The STG develops the methods and metrology that will lead to the understanding of the structure-property relationships of hierarchical composites in real medical PPE or protective applications, which heretofore has been lacking. This work establishes in situ monitoring of advanced manufacturing

High Amplification Laser-pressure Optic (HALO)

Ongoing
We have assembled a high-accuracy laser power meter based on radiation pressure with multiple reflections of the laser on the sensing mirror. A custom electrostatic force balance supports a high-reflectivity sensing mirror upon which a high-power continuous wave laser beam is incident at ~ 45

High Assurance Domains

Ongoing
NIST's Trustworthy Networks Program seeks to reduce systemic technical vulnerabilities in the foundation of the Internet and other critical network infrastructures. The objectives of NIST’s High Assurance Domains (HAD) project are to design, standardize and foster wide scale adoption of technologies

High Performance Computing

Ongoing
Current HPC technology broadly consists of: Leadership systems, such as the Department of Energy INCITE systems. Production Systems, such as clusters We work on both types of systems. For example, our work on the Rheology or Flow Properties of Concrete (see pages 15-16 in the latest INCITE report)

High Performance Crystal Plasticity

Ongoing
“Crystal plasticity” is a computationally intensive way of computing the behavior of materials undergoing large permanent deformations. Computation is very inhomogeneous: A large effort is expended everywhere, but only a small portion of the computational domain is doing anything interesting. We

High Resolution Atomic Spectroscopy

Ongoing
For many decades, the Atomic Spectroscopy Group at NIST has measured atomic data of vital use to astronomy and other fields using high resolution spectrometers that are found in few other places in the world. These include a 2-m path difference Fourier transfer (FT)spectrometer, a vacuum ultraviolet

High Speed Metrology for Magnetoelectronic Devices and Models

Ongoing
The U.S. Semiconductor industry is integrating ferromagnet-based microelectronic devices such as magnetic RAM (MRAM) into existing silicon-based technologies. MRAM has much shorter write times and higher write endurance than the embedded Flash currently used. These properties makes MRAM highly

High Throughput Thin-film Materials Science

Ongoing
There are many materials science problems that don’t have good modeling frameworks and exist in large design spaces. In these domains the best approach is to rapidly acquire data. To achieve this we can deposit metallic alloys as thin films with a range of composition (or less commonly processing

High-Frequency Electronics

Ongoing
This project supports the metrology of advanced electronic circuits and systems through many activities centered around accurate measurements and characterizations, improving device models and designs, enabling traceability of complicated electronics systems, and incorporating advanced technologies

High-Power Laser Applications

Ongoing
Measurement challenges Traditional measurements of laser power or energy involve absorbing the laser light and measuring the resulting temperature increase of the absorber. However, as the power and total energy delivered by these lasers increases, thermal management, absorber size, and response

High-Precision Isotopic Reference Materials

Ongoing
A new generation of multi-collector IRMS, utilizing both inductively coupled plasma and thermal ionization sample sources, is now capable of measuring isotope ratios with extremely high precision – a few parts in 10 6. This new measurement capability has caused a minor revolution in the use of

High-Precision Structural Measurements

Ongoing
On the instrumental and data processing side, we focus on improving the precision of structural information derived using transmission electron microscopy (TEM). Aberration-corrected scanning TEM enables direct imaging of atomic columns but the precision of column positions extracted from the images

High-Sensitivity IR Spectroscopy of Proteins

Ongoing
Infrared (IR) absorption spectroscopy has been widely used as a non-invasive, label-free characterization method of chemical identification and structure for complex biomolecules. Conventional IR spectroscopy, e.g., Fourier-transform IR (FT-IR) technology, can characterize proteins and other

HML Organic Chemical Metrology Program Areas

Ongoing
The organic analytical facility, located on the second floor of the Hollings Marine Laboratory, consists of two laboratories with a combined area of approximately 215 m2. These two laboratories provide the space and instrumentation to achieve two main functions for NIST: (1) the determination of

Human Factor Guidelines and Accessibility

Ongoing
With the aging of America, increasing prevalence of chronic disease and growing immigrant and minority populations in the U.S., there is the real potential for both unintentional traditional and digital health-care disparities. Health information technology (HIT) holds significant potential to
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