This code repository contains the "back-end" of the Nexus Microscopy Facility Laboratory Information Management System (NexusLIMS), developed by the NIST Office of Data and Informatics. Its primary function is to build XML-formatted research experiment records by combining metadata from many different sources (reservation systems, the collected data files, a session logger, etc.). These records are structured according to the "Nexus Experiment" schema, meaning they can be loaded into a repository and used for structured data queries.

These are measurement data associated with https://doi.org/10.6028/NIST.IR.8328. Code to process data is available at https://github.com/usnistgov/accessTime. Includes access delay measurement results for P25 Direct operating in unencrypted and encrypted modes, P25 Trunked Phase 1 and Phase 2 operating in unencrypted and encrypted modes, and an early development of a 3GPP compliant LTE MCPTT application server. Transmit audio and associated cutpoints files are also included.

Data for multi-site, multi-platform comparison of magnetic resonance imaging (MRI) T1 measurement using the International Society of Magnetic Resonance in Medicine/National Institute of Standards and Technology (ISMRM/NIST) system phantom. Includes data sets for T1 measurement by inversion recovery (IR) and variable flip angle (VFA) methods at 1.5 tesla and 3 tesla. At 1.5 T, data is from 2 different vendor systems, 9 total MRI machines. At 3 T, data is from 3 different vendor systems, 18 total MRI machines.

This data is provided as a supplement to NIST Technical Note 2147, Characterizing LTE User Equipment Emissions Under Closed-Loop Power Control. In particular, the data provided here is sufficient to reproduce all of the plots and analyses in Chapters 5 and 6, which present the data analysis results. See the data description document provided in the zip file for an outline of the contents and the technical note referenced above for details on the data collection.

This MIDAS object contains all the data inputs and code necessary to replicate the findings presented in NIST TN2137 using the statistical software Stata.

Data for D. A. Long, B. J. Reschovsky, F. Zhou, Y. Bao, T. W. LeBrun, and J. J. Gorman, "Electro-optic frequency combs for rapid interrogation in cavity optomechanics," Optics Letters Vol. 46, Issue 3, pp. 645-648 (2021), https://doi.org/10.1364/OL.405299

This data set is captured from a robot workcell that is performing activities representative of several manufacturing operations. The workcell contains two, 6-degree-of-freedom robot manipulators where one robot is performing material handling operations (e.g., transport parts into and out of a specific work space) while the other robot is performing a simulated precision operation (e.g., the robot touching the center of a part with a tool tip that leaves a mark on the part). This precision operation is intended to represent a precise manufacturing operation (e.g., welding, machining).

Supporting scripts and datasets for Gourdji et al, JGR-B, 2021: "A modified Vegetation Photosynthesis and Respiration Model (VPRM) for the eastern USA and Canada, evaluated with comparison to atmospheric observations and other biospheric models"

Atomic Bose-Einstein condensates (BECs) are widely investigated systems that exhibit quantum phenomena on a macroscopic scale. For example, they can be manipulated to contain solitonic excitations including conventional solitons, vortices, and many more. Broadly speaking, solitonic excitations are solitary waves that retain their size and shape and often propagate at a constant speed. They are present in many systems, at scales ranging from microscopic, to terrestrial and even astronomical.

Tabulations at 1 K intervals from 1 K to 6000 K of the partition function and standard-state isobaric heat capacity, entropy, and enthalpy for the 12 natural isotopologues of CO2, along with their standard uncertainties. Calculations performed with a partition function constructed from spectroscopic and theoretical data as described in the Appendix of the paper by A.H. Harvey, S.A. Tashkun, and E.W. Lemmon, to be submitted to J. Phys. Chem. Ref. Data. Note that the model does not account for dissociation of the CO2 molecule, making the results incomplete above approximately 3500 K.