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2451 results found

NIST Public Data Inventory

Data provided by  National Institute of Standards and Technology

Records contained within the NIST public data listing are part of the National Institute of Standards and Technology (NIST) enterprise data inventory. These data products are generated as part of the NIST mission, spanning multiple disciplines of scientific, engineering and technology research. This listing is provided as a data.json file, using the standard Project Open Data metadata schema v. 1.1.

Tags: NIST,research data,

Modified: 2024-02-22

Views: 0

Dataset for Establishing a Reference Focal Plane Using Machine Learning and Beads for Brightfield Imaging

Data provided by  National Institute of Standards and Technology

This dataset consists of sets of images corresponding to the data sets 1-8 described in Table 1 in the manuscript "Establishing a Reference Focal Plane Using Machine Learning and Beads for Brightfield Imaging".Data sets from A2K contain two .zip folders: one with the .tiff images and one with the corresponding .txt file with live and dead cell concentration enumeration.

Tags: optical microscopy,image processing,convolutional neural network,reference focal plane,

Modified: 2024-02-22

Views: 0

3D shape and size data for 10084 and 14163 lunar regolith particles

Data provided by  National Institute of Standards and Technology

This database contains 3D shape and size data for 10084 (Apollo 11) and 14163 (Apollo 14) real lunar regolith particles, along with STL files for the approximately 14,000 particles studied via X-ray micro-CT and X-ray nano-CT. The database also contains similar information for the lunar regolith simulant JSC-1A but for over 100,000 particles. There are also images for all 10084 and 14163 particles examined by SEM, which are different particles out of the same material.

Tags: lunar regolith,Apollo 11,Apollo 14,10084,14163,shape,size,X-ray micro computed tomography,light scattering,projected area,size distribution,shape distribution,NASA,

Modified: 2024-02-22

Views: 0

Current Population Survey: Basic Monthly

Data provided by  United States Census Bureau

To provide estimates of employment, unemployment, and other characteristics of the general labor force, of the population as a whole, and of various subgroups of the population. Monthly labor force data for the country are used by the Bureau of Labor Statistics (BLS) to determine the distribution of funds under the Job Training Partnership Act. These data are collected through combined computer-assisted personal interviewing (CAPI) and computer-assisted telephone interviewing (CATI).

Tags: census,

Modified: 2024-02-22

Views: 0

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica-Composites for Carbon Capture

Data provided by  National Institute of Standards and Technology

The database includes thermal data analysis for silica-composites that conclude the loading amount of amine adsorbents of each composite as well as each specimen's ability to adsorb CO2. The data repository includes raw data files for: thermogravimetric analysis (TGA) weight loss and CO2 adsorption traces, and Fourier Transform Infrared Spectroscopy (FTIR) spectra?s. For more information see the readme and data documentation. A complete manuscript describing data collection, analysis, and database documentation is to be published. File formats for data include: .txt and .csv.

Tags: FTIR,thermal analysis,DSC,TGA,optical microscopy,Advanced Materials,direct air capture materials,

Modified: 2024-02-22

Views: 0

Community Resilience Estimates

Data provided by  United States Census Bureau

The Community Resilience Estimates track how socially vulnerable every neighborhood in the United States is to the impacts of a disaster. The Community Resilience Estimates use American Community Survey microdata and Population Estimates Program data to measure the ability of individuals and households to absorb the external stresses of the impacts of a disaster.

Tags: census,

Modified: 2024-02-22

Views: 0

Data for "A 64-pixel mid-infrared single-photon imager based on superconducting nanowire detectors"

Data provided by  National Institute of Standards and Technology

Numerical values of all data points shown in figures for manuscript "A 64-pixel mid-infrared single-photon imager based on superconducting nanowire detectors", available on arXiv at https://arxiv.org/abs/2309.16890Manuscript submitted to Applied Physics Letters.

Tags: SNSPD,single photon detector array,mid-infrared,superconducting detector,

Modified: 2024-02-22

Views: 0

Python tools for OpenFOAM simulations of fused filaments in embedded 3D printing, Version 1.2.0

Data provided by  National Institute of Standards and Technology

In embedded 3D printing, a nozzle is embedded into a support bath and extrudes filaments or droplets into the bath. Using OpenFOAM, we simulated the extrusion of filaments and droplets into a moving bath, for single filaments, single filaments being disturbed by a nozzle, and printing pairs of filaments. OpenFOAM is an open source computational fluid dynamics solver.

Tags: OpenFOAM,computational fluid dynamics,3D printing,embedded 3D printing,bioprinting,polymer,rheology,interfacial energy,

Modified: 2024-02-22

Views: 0

OpenFOAM simulations of filament fusion in embedded 3D printing

Data provided by  National Institute of Standards and Technology

In embedded 3D printing, a nozzle is embedded into a support bath and extrudes filaments or droplets into the bath. However, moving the nozzle near an existing structure and writing new filaments can cause deformation and lack-of-fusion defects. Using OpenFOAM, we simulated what happens when a nozzle moves near an existing filament, and when a nozzle writes a second filament next to an existing filament. OpenFOAM is an open source computational fluid dynamics solver. This work used OpenFOAM 8 on a computing cluster. OpenFOAM input files were generated using Python 3.7.

Tags: 3D-printing,extrusion,support-bath,Herschel-Bulkley,rheology,surface tension,OpenFOAM,

Modified: 2024-02-22

Views: 0

Dataset for: A technique for in-situ displacement and strain measurement with laboratory-scale X-ray Computed Tomography

Data provided by  National Institute of Standards and Technology

This record provides raw and post-processed data used in the associated paper "A technique for in-situ displacement and strain measurement with laboratory-scale X-ray Computed Tomography." The codes used are provided in a separate software publication "SerialTrackXR", also referenced. The data consist of 3D X-ray computed tomography (X-ray CT) scans, projection images, and load/displacement data of two additively manufactured tensile test coupons made from IN718 with different processing conditions.

Tags: in-situ pore deformation,Surface strain measurement,particle tracking,laboratory X-ray micro computed tomography,

Modified: 2024-02-22

Views: 0