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897 results found

Digitized boundary and scanning isotherms from "The Thermodynamics and Hysteresis of Adsorption" by A. J. Brown, PhD Dissertation, University of Bristol (UK), 1963

Data provided by  National Institute of Standards and Technology

The dissertation "The Thermodynamics and Hysteresis of Adsorption" by A. J. Brown, contains unique measurements of adsorption/desorption isotherms of Xenon, Krypton, and Carbon Dioxide in Vycor Glass. A particular hallmark of this set of isotherms is an extensive set of scanning isotherms of Xenon at 151 K, examining numerous trajectories inside the adsorption-desorption hysteresis loop. The isotherms were provided in tabular form in appendices of the dissertation, allowing for conversion to digital files without loss of fidelity.

Tags: adsorption,desorption,adsorbent,hysteresis,scanning isotherm,isotherm,vycor,

Modified: 2025-04-06

Sample code and data for "Accurate localization microscopy by intrinsic aberration calibration"

Data provided by  National Institute of Standards and Technology

Sample data and code for "Accurate localization microscopy by intrinsic aberration calibration", Craig R. Copeland, Craig D. McGray, B. Robert Ilic, Jon Geist, and Samuel M. Stavis, Nature Communications X, Y (2021). For use in MATLAB.

Tags: localization,microscopy,particle tracking,intrinsic aberration,MEMS,

Modified: 2025-04-06

Baseline Deep Learning Detectors for Radar Detection in the 3.5 GHz CBRS Band

Data provided by  National Institute of Standards and Technology

This project aims to create a comprehensive framework for generating radio frequency (RF) datasets, designing deep learning (DL) detectors, and evaluating their detection performance using both simulated and experimental test data. The proposed tools and techniques are developed in the context of dynamic spectrum use for the 3.5 GHz Citizens Broadband Radio Service (CBRS), but they can be utilized and expanded for standardization of machine learned spectrum awareness technologies and methods.

Tags: 3.5 GHz; CBRS; radar; detection; deep learning; radio frequency signals; spectrum; MLSA,

Modified: 2025-04-06

Trojan Detection Software Challenge - nlp-sentiment-classification-mar2021-train

Data provided by  National Institute of Standards and Technology

Round 5 Train DatasetThe data being generated and disseminated is the train data used to construct trojan detection software solutions. This data, generated at NIST, consists of natural language processing (NLP) AIs trained to perform text sentiment classification on English text. A known percentage of these trained AI models have been poisoned with a known trigger which induces incorrect behavior. This data will be used to develop software solutions for detecting which trained AI models have been poisoned via embedded triggers.

Tags: Trojan Detection; Artificial Intelligence; AI; Machine Learning; Adversarial Machine Learning;,

Modified: 2025-04-06

NIST/NIBIB Medical Imaging Phantom Lending Library

Data provided by  National Institute of Standards and Technology

This database contains imaging and calibration data for phantoms contained in the NIST/NIBIB Phantom Lending Library (PLL). Description and access to the PLL can be found at https://www.nist.gov/programs-projects/nistnibib-medical-imaging-phanto… . Public analysis software written in Python can be found at https://github.com/MRIStandards/PhantomViewer .

Tags: Medical Imaging,MRI,phantoms,biomarkers,

Modified: 2025-04-06

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