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Mathematics & Statistics

Statistical analysis

News and Updates

Events

Projects and Programs

A Comparison of WD-EPMA Heterogeneity Testing Procedures

Ongoing
X-ray stage mapping (XSM) can be used to determine the extent of heterogeneity on the micron scale though it is more time consuming and not as accurate as the more rigorous NIST random-point (RP) testing procedure. The objective of this work is to demonstrate the advantage of the latter procedure
radiometer_plot

Advanced Microwave Radiometer Metrology

Ongoing
Using the NIST radiometer as a test bed, we studied the stability of temperature measurements for infrequent calibrations and developed stability metrics. We developed models to simulate output temperatures from the NIST radiometer, thus enabling the study of radiometer output without having to
The word "TIME" appears and grows larger among line drawings of various types of clocks.

Advancing Statistical Methods for Next-Generation Clock Networks

Ongoing
Atomic clocks are key to a wide array of technologies and scientific experiments, including tests of fundamental physics. Clocks operating at optical frequencies have now demonstrated fractional stability and reproducibility at 10 -18, two orders of magnitude beyond their microwave predecessors
footwear imprint image

Building Trust in Forensic Science: Footwear Analysis

Ongoing
Starting in 2015, SED staff members began reviewing published literature on the recommended practice for forensic examiners to provide likelihood ratios (LRs) as a weight of evidence to summarize their findings in reports or testimony. While several stated motivations for providing likelihood ratios

Publications

Random pulse sequences for qubit noise spectroscopy

Author(s)
Kaixin Huang, Demitry Farfurnik, Alireza Seif, Mohammad Hafezi, Yi-Kai Liu
Qubit noise spectroscopy is an important tool for the experimental investigation of open quantum systems. However, conventional techniques for implementing

Guia Breve sobre la Incertidumbre de Medicion

Author(s)
Antonio Possolo, Maria Victoria Gelabert, David Hibbert, Jürgen Stohner, Olha Bodnar, Juris Meija
Esta Guía Breve reintroduce a los lectores en los principales conceptos y herramientas técnicas utilizadas para la evaluación y expresión de la incertidumbre de

Software

Calculator

Smart Investment Tool

This tool calculates metrics for investment analysis documented in NIST Advanced manufacturing Series 200-5. It calculates net present value, internal rate of
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