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Mathematics & Statistics

Statistical analysis

Projects/Programs

Keyword

Organizational Unit

Metrology for Real-Time Monitoring of Additive Manufacturing

Completed

Part quality in additive manufacturing (AM) is highly variable due to inadequate dimensional tolerances, surface roughness, and defects, thereby limiting its

metRology Software Project

Ongoing

The goal of the metRology software project is to provide a set of specialized functions for statistical metrology as a package for the R software environment

NIST PS1 Primary Standard for quantitative NMR (Benzoic Acid)

Completed

The "first-of-its-kind" in an entirely new class of reference material, NIST PS1 Primary Standard for quantitative NMR (Benzoic Acid) is now available! The PS

NIST/SEMATECH Engineering Statistics Handbook

Ongoing

The NIST/SEMATECH e-Handbook of Statistical Methods is a Web-based book written to help scientists and engineers incorporate statistical methods into their work

Precursor Material Qualification

Completed

The lack of repeatable process outcomes from additive manufacturing (AM) has been broadly acknowledged as an impediment to widespread implementation. While most

Qualification for AM Feedstocks, Machines and Processes

Completed

Machines and processes used to produce critical components for defense, aerospace, and medical applications must first be formally qualified. While

Quantifying Uncertainty in Accelerometer Sensitivity Studies

Ongoing

To compare the sensitivity of linear accelerometers.

Radiative Decay of the Neutron

Ongoing

Quantum electrodynamics (QED) predicts that a neutron will decay into a proton, electron and anti-neutrino. A small fraction of the time, this beta-decay

Sensing and Imaging of concealed objects

Ongoing

Emergency response , l aw enforcement and military personnel must face threats and dangerous situations as part of their jobs. These threats can vary from

Statistical Estimation of Degrees of Equivalence for Key Comparison experiments

Ongoing

Develop Bayesian statistical methods for the estimation of Degrees of Equivalence between laboratories participating in Key Comparison experiments. Degrees of

Statistical Friction Ridge Analysis (SFRA)

Ongoing

This project aims to develop a statistical measure of the uncertainty of the decisions made on the friction ridge evidence (i.e., evidential value of

Statistical Methods in Millimeter-Wave Wireless Metrology

Ongoing

The goal of the millimeter-wave wireless metrology project is to develop the metrology for the next-generation mobile communications at millimeter-wave

Statistical Methods for Quantitative Imaging

Ongoing

Modern imaging systems produce massive amount of data that can be used to obtain critical 3D information on targeted measurement objects (nodules), including

Statistical methods for quantitative near-field scanning probe microwave microscopy for material genomics

Ongoing

Near-field scanning probe microwave microscopy (NSSM) offers great potential to facilitate characterization, development, and modeling of novel materials. Based

Staff from the Department of Homeland Security participate in a hands-on exercise as part of the SED short course on experiment design.

Statistical Metrology Short Courses

Ongoing

Staff members of the Statistical Engineering Division regularly offer short courses on uncertainty analysis, design of experiments, and other topics in

Statistical Process Monitoring for Autocorrelated Data

Ongoing

Develop statistical approaches to monitor process mean, process variability, and process capability indices for autocorrelated data.

Statistical Support for Bioassay Standard Development

Ongoing

In this project, we investigate appropriate uncertainty analysis and splicing algorithms for spectral data, especially fluorescence spectroscopy calibration, to

Statistics for Ballistics Identification

Ongoing

NIST is making advances in the science and technology for identification of firearms and tool marks; SED provides statistical analyses and designs as a vital

Statistics for Food and Supplement SRMs

Ongoing

SED has had a long and extensive collaboration with the Materials Measurement Laboratory in working toward the certification of standard reference materials

Structure-Property Relationships for High-Strength Materials

Ongoing

High-strength materials are used to protect wearers from injury due to ballistic and stab threats, as well as other potentially life-threatening incidents. The

Surrogate Gas Prediction Model

Ongoing

Develop a proxy model to predict enhancement of C in atmospheric CO 2 due to fossil fuel emissions (C ff) based on inexpensive measurements of anthropogenic

Tunable Compression of Wind Tunnel Data

Ongoing

Measurements of pressures exerted by wind on buildings, as are made in wind-tunnel tests involving model buildings instrumented with pressure taps, are an

Uncertainty analysis for autocorrelated measurement data

Ongoing

Develop statistical approaches to assess uncertainties for various autocorrelated measurement data.

Uncertainty Estimation in Interlaboratory Studies

Ongoing

Statistical modeling and analysis of interlaboratory comparisons pose several fundamental questions about determination of the consensus value and its

Using Geodesics in Cell Cytometry

Ongoing

This statistical application involves determining the similarity of cell populations based on comparing cell shapes.

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----Cell Systems Science Group
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---Chemical Sciences Division
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