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1038 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

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

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

Characterization of a Frequency Converter Based on a Superconducting Coplanar Waveguide, IMS 2024

Data provided by  National Institute of Standards and Technology

We plan to present a technique for implementing a frequency doubler in NbTiN on silicon for operation in a cryogenic environment at IMS 2024. The kinetic inductance of a superconducting coplanar waveguide is exploited for efficient frequency conversion, while the fabrication allows for co-location with other cryogenic circuits. A conversion efficiency greater than 10% is demonstrated at a frequency of 9.87 GHz, offering lower input power requirements and competitive conversion efficiencies relative to other state-of-the-art solutions.

Tags: cryogenic electronics,frequency conversion,kinetic inductance,superconducting coils,

Modified: 2024-02-22

Views: 0

Cutting Force Monitoring Experiment 02

Data provided by  National Institute of Standards and Technology

An experiment was set up at the Oak Ridge National Laboratory (ORNL) to test methods for estimating the cutting forces in real time within machine tools for any spindle speed, force profile, tool type, and cutting conditions. Before cutting, a metrology suite and instrumented tool holder were used to induce magnetic forces during spindle rotation, while on-machine vibrations, magnetic forces, and error motions were measured for various combinations of speeds and forces.

Tags: smart manufacturing,Industry 4.0,Data-driven dynamics,Frequency response function,machine tool,modeling,Dynamics,Machining processes,Sensing,monitoring,diagnostics,

Modified: 2024-02-22

Views: 0