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897 results found

Near-infrared cavity ring-down spectroscopy measurements of nitrous oxide in the (4200)?(0000) and (5000)?(0000) bands

Data provided by  National Institute of Standards and Technology

Data for generation of figures in "Near-infrared cavity ring-down spectroscopy measurements of nitrous oxide in the (4200)<-(0000) and (5000),<-(0000) bands" DOI: https://doi.org/10.1016/j.jqsrt.2021.107527

Tags: nitrous oxide; cavity ring-down spectroscopy,advanced spectroscopic line shapes,

Modified: 2025-04-06

Mission Critical Voice Quality of Experience Access Time Measurement Method Addendum Data

Data provided by  National Institute of Standards and Technology

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.

Tags: Access delay; Articulation Band Correlation Modified Rhyme Test (ABC-MRT); A-weight; Encryption; Key performance indicator (KPI); Land mobile radio (LMR); Latency; Long Term Evolution (LTE); Mission Critical Push-to-Talk (MCPTT); Modified Rhyme Test (MRT); Mouth-to-ear (M2E); Packetized; Project 25 (P25); Public Safety; Push-to-talk (PTT); Quality of experience (QoE); Receive; Streaming; Transmit; Vocoder,

Modified: 2025-04-06

Characterizing LTE User Equipment Emissions Under Closed-Loop Power Control

Data provided by  National Institute of Standards and Technology

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.

Tags: wireless communications,Long Term Evolution (LTE),

Modified: 2025-04-06

Data and Code for Analysis presented in NIST TN 2137: Quantifying Operational Resilience Benefits of the Smart Grid

Data provided by  National Institute of Standards and Technology

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

Tags: Hurricane Irma,interoperability,resilience,smart grid,

Modified: 2025-04-06

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

Data provided by  National Institute of Standards and Technology

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.

Tags: magnetic resonance imaging,MRI,T1,phantom,

Modified: 2025-04-06

NexusLIMS: a Python Package for EM Experiment Metadata Management

Data provided by  National Institute of Standards and Technology

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.

Tags: laboratory information management,materials microscopy,electron microscopy,data management,scientific data,reproducibility,open science,

Modified: 2025-04-06

Baseline Tailor

Data provided by  National Institute of Standards and Technology

Baseline Tailor is a software tool for using the United States government's Cybersecurity Framework and for tailoring the NIST Special Publication (SP) 800-53 security controls. Baseline Tailor generates output in an Extensible Markup Language (XML) format capturing a user's Framework Profile and tailoring choices.

Tags: cybersecurity framework,security control,framework profile,manufacturing profile,tailored baseline,industrial control system,xml,

Modified: 2025-04-06

Independent Calculation of Move Lists for Incumbent Protection in a Multi-SAS Shared Spectrum Environment

Data provided by  National Institute of Standards and Technology

In a shared spectrum environment, as is the case in the 3.5 GHz Citizens Broadband Radio Service (CBRS), the secondary users with lower priority are managed by independent spectrum access systems (SASs) in order to protect the incumbents with higher priority from interference. The interference protection is guaranteed in terms of a percentile of the aggregate interference power. The current practice requires each SAS to obtain a global snapshot of interference and use a common algorithm to manage it.

Tags: aggregate interference,CBRS,incumbent protection,spectrum access system,spectrum sharing.,

Modified: 2025-04-06

Data supporting the case study of the 2018 Camp Fire

Data provided by  National Institute of Standards and Technology

The Camp Fire ignited on November 8, 2018 in the foothills of the Sierra Nevada in Butte County, California. The first 24 hours were characterized by a fast-moving fire with initial spread driven by high winds up to 22 m/s (50 mi/h) and long-range spotting up to 6.3 km (3.9 mi) into the community. The fire quickly impacted the communities of Concow, Paradise, and Magalia. The Camp Fire became the most destructive and deadly fire in California history, with over 18000 destroyed structures, 700 damaged structures, and 85 fatalities.

Tags: California,Camp Fire,fire,outdoor fire,reconstruction,spot fire,wildfire,wildland-urban interface,WUI,

Modified: 2025-04-06

Supporting information to accompany: Efficient and Precise Representation of Pure Fluid Phase Equilibria with Chebyshev Expansions

Data provided by  National Institute of Standards and Technology

Code to accompany paper used to generate Chebyshev expansions of the phase equilibria for pure fluids from multiparameter EOS

Tags: phase equilibrium; equation of state; numerical approximation; Chebyshev expansion,

Modified: 2025-04-06