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 226 - 250 of 1616

Chinese hamster ovary (CHO) cell line authentication

Ongoing
Intended impact To develop a PCR based multiplex assay that can be used to authenticate Chinese hamster ovary cell lines which are important in the production of biological therapeutics. Objectives Identify tetranucleotide STR markers by searching the CHO genome using BLAST Design and
laser technologies

Chip-scale ultraprecise laser technologies

Ongoing
Lasers with high spectral purity are used in a diverse application space, including coherent high-speed communications, physical sensing, and manipulation of quantum systems. Lab bench scale Fabry-Perot cavities based on sophisticated vibration, thermal, and atmospheric isolation have made possible
CHRNS Kinetics Initiative

CHRNS Non-Equilibrium Structure of Materials Initiative

Ongoing
The MACS, vSANS, and CANDOR instruments will be upgraded to allow new approaches for time- resolved experiments. New hardware will allow CHRNS users to remotely reduce and analyze their data. New data formats that incorporate the multiple time-resolved data streams and a new methodology of

Circular Economy Closed Loop Recovery

Ongoing
Objective To define critical material and information pathways to support the development of closed-loop systems to establish reliable sources of secondary material feedstocks that divert critical resources away from landfills using material recovery strategies - recycling, remanufacturing, and

Circular Economy Product Design and Digital Thread

Ongoing
Objective The objective of the Circular Economy Product Design project is to develop methods and standards to create products intentionally designed to minimize waste and maximize resource efficiency throughout their entire lifecycle, resulting in positive social and environmental impacts. Technical
USS George H.W. Bush equipped with air traffic control radar system operating in the 3.5 GHz band

Citizens Broadband Radio Service

Ongoing
The FCC Part 96 rules establish a three-tier architecture for sharing the radiofrequency (RF) spectrum from 3550 MHz to 3700 MHz. Commercial users of the 3.5 GHz Citizens Broadband Radio Service (CBRS) band will share this spectrum with existing incumbents, including the federal government which

Classification of 3.5 GHz Spectrograms

Completed
This project compared various detection algorithms for federal incumbent radar signals in the 3550-3650 MHz band using a set of over 14,000 spectrograms collected by the completed Waveform Measurements of Radars Operating in the 3.5 GHz Band project. The results demonstrated that training deep
Map of the Northern hemisphere Pacific Ocean, with environmental specimen sampling sites indicated with data points in the Hawaiian Islands, Alaska, and Bering Sea locations.

Classification Methods for the NIST Biorepository

Ongoing
NIST has been archiving biological and environmental specimens, including marine animal and environmental samples, for over 40 years. Currently, these biospecimens are stored at cryogenic temperatures in the NIST Biorepository located at the Hollings Marine Laboratory in Charleston, SC. Various
Illustration of satellite sensing of sunlight reflected by buildings, roads, water and trees to assess radiative warming of the earth.

Climate Science

Ongoing
This program encompasses multifaceted efforts to advance the metrology of climate science. Projects include: development of ultra-high accuracy optical standards and technologies to determine greenhouse gases (GHGs) concentrations, atmospheric lifetimes, and aerosol radiative forcing development of
Photograph of a unit of SRM 3950 showing a labeled box and two frost covered amber bottles.

Clinical Measurements Quality Assurance Program

Ongoing
The National Institute of Standards and Technology (NIST) established the Clinical Measurements Quality Assurance Program (ClinQAP) to support the measurement needs of the clinical community. Participants measure concentrations of marker compounds, contaminants, metabolites in clinical samples (e.g
CoRR Logo

Cloud of Reproducible Records

Ongoing
Cloud of Reproducible Records (CoRR) CoRR is a Cloud Infrastructure for storing, disseminating, federating and collaborating on Reproducible Record atoms. It is composed of two Python Flask REST web services (Cloud and API), a cloud storage space, a MongoDB database and a Material Design AJAX web
YBITMvsRootModPred

Clutter Measurement

Ongoing
The Irregular Terrain Model (ITM) is a model for radio propagation that has been widely used for predicting the attenuation of a radio signal as a function of distance and the variability of the signal in time and in space. It was developed in the 1960 sand therefore does not fully utilize the

Coastal Inundation: Hazard Characterization and Structural Design

Ongoing
Objective - To develop next-generation methods and tools to better characterize coastal inundation hazards, associated loads, and response of structures, thus enabling performance-based standards for designing structures that resist coastal inundation. What is the new technical idea? Current design

CODATA values of the fundamental physical constants

Ongoing
CODATA recommended values of the constants Database of references for data on the constants Publications: Reviews of Modern Physics ( 1998) ( 2002) ( 2006) ( 2010) ( 2014) Journal of Physical and Chemical Reference Data ( 1998) ( 2006) ( 2010) Resource Letter FC-1: The physics of fundamental
background molecule

Cold Core Technology Platform

Ongoing
Cold atoms can be useful sensors for a host of different phenomena including inertial forces like acceleration and rotation, gravity, magnetic fields, vacuum and time. However, most of these applications are still confined to the laboratory. Building robust, field-deployable quantum sensors made

Collaborative Microgrid for Smart Buildings

Completed
Currently, the idea of designing collaborative smart buildings is becoming a real challenge. Indeed, the emergence of smart grids and the growing use of smart household appliances is the main driving force behind the use of demand side management. This would require developing an efficient control

Collaborative Research with NIST Scientists and Engineers

Ongoing
As members of interdisciplinary teams, SED statisticians contribute in a variety of ways. SED staff develop appropriate statistical strategies to meet the needs of the research teams, participate in the planning of experimental studies, and conduct rigorous and nontrivial uncertainty analysis of

Collapse Assessment of Buildings under Seismic Loading

Completed
Objective - To evaluate the collapse probabilities of a suite of steel buildings for a series of increasingly severe earthquake ground motions, and to compare these probabilities to the collapse objective presumed in ASCE/SEI 7. The probabilities of collapse will be determined using the methodology
color and appearance diagram

Color and appearance

Ongoing
The quality of an object—be it fruit at the grocery store, clothes in the department store, or a new car on the dealer's lot—is often judged by its color and appearance. Appearance greatly influences a customer's judgement of the quality and acceptability of manufactured products, as yearly there is