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Projects/Programs

Topic Area
Displaying 1451 - 1475 of 1661
First responders collecting samples of the yeast surrogate material during a field exercise. (Credit: NIST)

Standards to Support Biothreat Detection

Ongoing
Since 9/11 and the subsequent anthrax attacks in 2001, suspicious white powder incidents continue to occur within the US, often requiring Federal law enforcement response. Suspect samples are sent to public health laboratories for confirmatory evaluation, which can take hours to weeks to receive

Standards & Testing - Healthcare

Ongoing
Please continue to the Healthcare - Standards & Testing page. The site will provide information about the key health IT testing initiatives underway. It provides an overview of the Health IT Standards Testing Infrastructure as well as educational material on conformance testing, access to Meaningful

State Estimation for Uncertain Power Systems

Completed
The deployment of renewable resources in distributed grid systems poses a set of new challenges mainly due to their variability and dependency on climate parameters, which can have a major impact on the system parameters that are needed to measure power flow and state estimation. More precisely, a

Statistical Characterization of High-Speed Oscilloscopes and Photodiodes

Ongoing
As part of a interdisciplinary team including staff from the Optoelectronics and the Radio Frequency Technology Divisions of EEEL, SED staff are developing statistical methods and associated software for calibration of high-speed digital sampling oscilloscopes and characterizing the impulse response

Statistical Education Project

Ongoing
The NIST laboratory has over 1300 scientists and engineers formulating investigations, planning experiments, collecting data, analyzing data, and deriving scientific/ engineering conclusions. All of these scientific-method components may benefit from both the general and NIST-specific statistical

Statistical Friction Ridge Analysis (SFRA)

Ongoing
Introduction Friction ridge analysis in crime scene investigation is one of the crucial forensic methods to find the suspects and victims of crime and solve cases. Latent fingerprints—the friction ridge patterns from fingertips left at crime scenes and photographed or lifted from the surfaces—are

Statistical methods for MGI metrology

Ongoing
We focus on research and development of statistical methods to enable new measurement science and metrology relevant to MGI. In particular, we illustrate our methods for examples from near-field scanning probe microwave microscopy (NSSM) for characterization, development, and modeling of novel

Statistical Methods in Millimeter-Wave Wireless Metrology

Ongoing
DESCRIPTION: One of the measurement solutions is the use of reverberation chambers for free-field testing of wireless devices. A reverberation chamber is an environment for electromagnetic compatibility testing and other investigations. Quantities of interest that have been studied for wireless
DataPlotRelativeErrorBoxplot2

Statistical Methods for Quantitative Imaging

Ongoing
In this project, we have gained valuable experience in the emerging area of developing metrology support for medical image decision making, and we have focused mainly in the area of high resolution CT imaging for lung nodules,using both phantoms and clinical data, in the context of RSNA's QIBA

Statistical Methods in Waveform Metrology

Ongoing
One of the methods developed is the timebase correction procedure for waveforms. A waveform is a representation of a signal varies with time. The most familiar waveform is the sine wave. Waveform measurements are required throughout the optical communications, computer, wireless communications

Statistical modeling of images of electronic materials

Ongoing
Correcting NSSM images of materials for topographic backgrounds is a major challenge. Based on the Atomic Force Microscopy (AFM) topography images, we predict the signature of topographic variations to any NSSM image. The difference between the observed NSSM image and this prediction is our estimate

Statistical Process Monitoring for Autocorrelated Data

Ongoing
DESCRIPTION: Process monitoring is very important for industries. Statistical methodologies have been used to monitor various production process successfully. The majority of statistical process monitoring techniques assume that the process data are free of autocorreation. However, this assumption

Statistical Process Monitoring for Autocorrelated Data Project

Ongoing
Process monitoring is very important for industries. Statistical methodologies have been used to monitor various production process successfully. The majority of statistical process monitoring techniques assume that the process data are free of autocorreation. However, this assumption isfrequently
Splicing Multiple SRM Correction Factor

Statistical Support for Bioassay Standard Development

Ongoing
Biological assays are procedures that can determine concentration, purity, or biological activity of a substance through scientific experimentation. Fluorescence-based quantification one of the most widely used technique in quantitative clinical and biochemical assays, and it depends on the

Statistics for Ballistics Identification

Ongoing
DESCRIPTION: Statistical Engineering Division has had an ongoing collaboration with NIST's Precision Engineering Division (now Semiconductor and Dimensional Metrology Division) and Office of Law Enforcement Standards (now in the Office of Special Programs) in the field of firearms and tool mark

Statistics for Food and Supplement SRMs

Ongoing
DESCRIPTION: NIST's program of food and reference materials with reliable content values for various nutrients helps the food industry comply with FDA rules and helps consumers in making dietary choices. The Nutrition Labeling and Education Act of 1990 requires that labels on processed foods
This figure shows a microscopic image of a field of cells, some of which are pseudocolored red to indicate that these cells remain pluripotent.

Stem Cell Metrology: WSDOM

Ongoing
Stem cells are critical starting materials for advanced therapies and diagnostic devices. The most commonly used are induced pluripotent stem cells (iPSCs) which can be created with any individual’s skin cells, and then can be coaxed to become cells for any tissue of the body. Therapies and
Steroid Hormone Pathway Mapping

Steroid Hormone Suite Analysis

Ongoing
Steroid hormones are signaling molecules that are major regulators of development, reproduction, stress, and growth. Steroids are synthesized from cholesterol through a series of enzymes, resulting in hormones with distinct biological activities. Although hormones are similar in structure, and

Stochastic Network Growth Simulation for Photopolymerization

Ongoing
We have developed a computational method to simulate the complex interactions of the stochastic processes during polymerization. Specifically, the firing rates of these stochastic events are determined based on monomer information ( e.g. functionalities, rate constants, diffusivities, interaction

Storage Stability of Freeze-Dried Proteins

Completed
Intended Impact Work in this project will enable industry to develop rational formulation approaches for freeze-drying, thus facilitating the manufacture safer, longer lasting biopharmaceuticals, with less time and resource cost required for stabilization. Biopharmaceuticals are the fastest growing
EBSD measurement on 63nm SiGe line

Strain Measurement for Semiconductor Devices

Ongoing
Mechanical strain is hugely important to semiconductor devices and packages while also being difficult to measure accurately. Strain is engineered into CMOS channels to improve carrier mobility for higher performance at lower power but is also intrinsically present from manufacturing processes where
Images depicting an advanced analysis of HR-EBSD data

Strain Measurement for Semiconductor Devices and Packages

Ongoing
Strain is a critical parameter that influences both electrical and mechanical failures of devices, however, measuring strain in complex 3D geometries and vanishingly small feature sizes remains a challenge for manufacturers. Data provided by strain measurements can be used to validate computational
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