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85788 results found

Data Supporting the Development of Targeted GC-MS Methods for Seized Drug Analysis

Data provided by  National Institute of Standards and Technology

This dataset contains information regarding the development of targeted GC-MS methods for forensic seized drug analysis. Included in this dataset are method parameter files, mass spectra, mass spectral databases, and retention time / retention index data.

Tags: Forensic Science,forensics,GC-MS,Seized Drug,drugs,Targeted Methods,

Modified: 2025-04-06

Ideal-gas Thermochemical Properties for Carbon Dioxide and its Isotopologues Calculated from Partition Functions

Data provided by  National Institute of Standards and Technology

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.

Tags: carbon dioxide,heat capacity,enthalpy,entropy,ideal-gas properties,equation of state,partition function,thermochemistry,

Modified: 2025-04-06

Dataset from HDX-MS Studies of IgG1 Glycoforms and Their Interactions with the Fc(gamma)RIa (CD64) Receptor

Data provided by  National Institute of Standards and Technology

This database gives hydrogen-deuterium exchange mass spectrometry (HDX-MS) data from measurements of three purified IgG1 glycoform samples, predominantly G0F, G2F, and SAF, in isolation and in complexation with the high-affinity receptor, Fc(gamma)RIa (CD64). The IgG1 antibody used in this study, aIL8hFc, is a murine-human chimeric IgG1, which inhibits IL-8 binding to human neutrophils.

Tags: antibody-receptor interaction,chromatography,HDX-MS,hydrogen-deuterium exchange,glycosylation,mass spectrometry,monoclonal antibody,precision,peptide,protein,proteolysis,proteomics,receptor.,

Modified: 2025-04-06

Absolute 13C/12C Isotope Amount Ratio for Vienna Pee Dee Belemnite from Infrared Absorption Spectroscopy

Data provided by  National Institute of Standards and Technology

Data set from peer-reviewed publication: A. J. Fleisher et al., Absolute 13C/12C Isotope Amount Ratio for Vienna Pee Dee Belemnite from Infrared Absorption Spectroscopy, Nature Physics. Measurements of isotope ratios are predominantly made with reference to standard specimens that have been characterized in the past. In the 1950s, the carbon isotope ratio was referenced to a belemnite sample collected by Heinz Lowenstam and Harold Urey in South Carolina?s Pee Dee region.

Tags: greenhouse gases,carbon dioxide,oceans,ph,marine mammals,remote sensing,seabirds,Environment and Climate,

Modified: 2025-04-06

Electro-optic frequency combs for rapid interrogation in cavity optomechanics

Data provided by  National Institute of Standards and Technology

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

Tags: Optical microcavities,accelerometry,optical frequency combs,

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

Economic Census: Accommodation and Food Services: Primary Type of Food Service for the U.S. and States: 2017

Data provided by  United States Census Bureau

This dataset presents statistics for Accommodation and Food Services: Primary Type of Food Service for the U.S. and States

Tags: census,

Modified: 2025-03-24

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