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Projects/Programs

Topic Area
Displaying 526 - 550 of 1655

Fast Tenprint Capture

Completed
September 2007: Framework We presented the framework regarding the evaluation of 3-D fingerprint image capture devices at the Biometric Consortium Conference at Baltimore. You may download the presentation. January 2008: Meeting We had a meeting with Dr. Stanley Erickson, who is the sponsor

Fatigue in Silicon

Ongoing
It has long been thought that bulk silicon is immune to fatigue. We present contrary evidence by demonstrating severe fatigue in macroscale specimens. Cracks are produced during cyclic loading of monocrystalline silicon plates with a 3 mm radius sphere indenter mounted onto a universal testing

Fatty Acids in Human Serum and Plasma Quality Assurance Program (FAQAP)

Completed
Interlaboratory comparison studies of the FAQAP focused on the measurement of 24 fatty acids in selected serum and plasma matrices. Frozen or freeze-dried serum or plasma samples were sent to laboratories for analysis together with control materials. Results were returned to NIST for data evaluation

Fault Detection and Diagnostics for Air-Conditioners and Heat Pumps

Ongoing
Objective Develop fault detection and diagnostic (FDD) methods and measurement tools to ensure air conditioners (ACs) and heat pumps (HPs) perform as designed throughout their lifetime and develop a testing and rating methodology to assess relative merits of different commercial FDD products

Femtosecond Nonlinear Optical Spectroscopy of Nanoscale Materials

Ongoing
The purpose of this project is to develop and refine spectroscopic techniques based on nonlinear optics for the study of novel materials. Measurements that isolate the nonlinear response are often better able to uncover physical processes that, in the linear response, are subtle and hard to isolate

Femtosecond-Laser Frequency Combs for Optical Clocks

Ongoing
The self-referenced optical frequency comb, which our NIST/University of Colorado collaboration first demonstrated in 1999, ushered in a revolution in optical frequency metrology. The frequency comb made it possible to directly count optical cycles with femtosecond resolution using a compact and

Fiber Sources and Applications Background Information

Ongoing
NIST has been a world leader in lasers since the technology's development in the early 1960s, a tradition continued when NIST scientist John L. Hall shared the 2005 Nobel Prize in physics for his part in the invention of the optical frequency comb. The output of a comb is a brief broadband pulse

Fiber-optic Frequency Comb Development

Ongoing
Frequency combs have found a wide range of applications beyond just optical metrology. Applications include laser ranging, precision molecular spectroscopy in the lab and over the air, optical timing distribution, low-noise microwave generation and support for optical clocks. All these applications

Field Programmable Gate Array (FPGA) Designs for Metrology

Ongoing
Until recently, the precision measurement of phase noise, spectral purity, and related quantities had been a challenging process, with only a handful of qualified experts in the world. However, Field Programmable Gate Array (FPGA) based measurement systems, similar to software defined radio (SDR)

Fingerprint

Ongoing
Fingerprint Recognition We conduct technology evaluations of fingerprint matching, identification, and verification systems. Fingerprint Compression To establish normative guidance and certification pathways for the compression of fingerprint imagery. ANSI/NIST-ITL Standard The standard provides

Fingerprint Chemistry

Paused
Verification Test Materials (VTMs) for Fingerprint Developing Reagents The forensic community has no quantifiable QA/QC method for determining the efficacy of fingerprint developing reagents prior to use in casework. Reagents can be exposed to environmental conditions in the field that can expedite

Fingerprint Compression

Ongoing
Biometric Compression Information In July of 2009 NIST in partnership with the FBI commenced an investigation on the use of JPEG 2000 for compressing fingerprint imagery with the ultimate goal to establish a normative guidance and certification pathway for the compression of 1000 ppi friction ridge

Fingerprint Recognition

Ongoing
N2N Fingerprint Capture Challenge IARPA has invited the biometrics research community to participate in the Nail-to-Nail (N2N) Fingerprint Capture Challenge. This official U.S. Government Challenge problem seeks to reward researchers for creating autonomous rolled capture devices whose images

Fingerprint Technology Testing for Identity Management

Ongoing
Most biometric-enabled identity management (IdM) systems utilize fingerprint technology for enrolling and issuing credentials, and then in subsequent authentication transactions. It is important to evaluate and understand the performance characteristics and limitations of fingerprint matching

Fingerprint Vendor Technology Evaluation (FpVTE)

Completed
The Fingerprint Vendor Technology Evaluation (FpVTE) is an independently administered technology evaluation of fingerprint matching, identification, and verification system. It has been rebranded as FRIF TE E1N.

FiPy

Ongoing
The solution of coupled sets of PDEs is ubiquitous to the numerical simulation of science problems. Numerous PDE solvers exist, using a variety of languages and numerical approaches. Many are proprietary, expensive and difficult to customize. As a result, scientists spend considerable resources

Fire Debris and Explosives

Ongoing
Fire Debris Fire debris analysis involves the collection, analysis, and interpretation of data of debris collected from fire scenes. Samples are typically analyzed by gas chromatography mass spectrometry which results in a complicated chromatogram that must be interpreted. Projects in this area are

Fire Risk Reduction in Buildings Program

Ongoing
This program advances fire measurement capabilities, predictive models, testing methods, detection technologies, and fire-resistant materials to create innovative, cost-effective solutions that enhance occupant safety and improve the fire resistance of buildings and their contents.

Fire Risk Reduction in Communities Program

Ongoing
This program advances measurement science to improve community and building resilience to fires, address risks of new technologies, and enhance firefighter awareness and equipment performance through science-based codes, standards, and practices.

Fire Risks of New Technologies

Ongoing
This project supports the U.S. in assessing and mitigating fire risks from new technologies, leveraging NIST's unique fire expertise.

Fixed Point Development: Non-Metals

Ongoing
A fixed point is a reproducible reference temperature, usually either melting of freezing of a pure substance, that allows a standardized interpolation scheme for the purposes of temperature scale dissemination. Most SPRTs are long-stem designs that require immersion-type fixed points incorporating

Flammability Metrics for New Low-GWP Refrigerants

Completed
Objective: To develop the capability to measure and predict the burning velocity of mixtures of low-Global Warming Potential (GWP) refrigerants to allow the ranking of the mixtures in terms of their flammability, to assist in the selection and implementation of the best replacements for high-GWP

Flexible and Printed Electronics

Ongoing
Approach Developing commercial products based on organic electronics requires materials that deliver predictable and reproducible performance. One advantage of these materials is their compatibility with versatile solution processing methods. However, this advantage can lead to unpredictable
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