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1169 results found
Transportable time-of-flight mass spectrometry of illicit drugs using dielectric barrier discharge ionization and acetone-assisted vacuum ultraviolet photoionization
Data provided by National Institute of Standards and Technology
This data publication contains the raw, extracted, and derived (e.g., peak areas) mass spectrometry data for illicit drug and mixture samples. These samples were analyzed by wipe-based collection or solvent-extraction, thermal desorption, and a transportable high-resolution time-of-flight mass spectrometer. Data were collected with both an in-line dielectric barrier discharge ionization source and an acetone-dopoant assisted vacuum ultraviolet (VUV) photoionization source.
Tags: mass spectrometry,time-of-flight,transportable,illicit drugs,narcotics,forensics,public health,harm reduction,point-of-need,ambient ionization,
Modified: 2025-04-06
Data and input files associated with "Bloch-state optimal basis sets: An efficient approach for electronic structure interpolation"
Data provided by National Institute of Standards and Technology
Data and input files for publication "Bloch-state optimal basis sets: An efficient approach for electronic structure interpolation"
Tags: x-ray absorption,x-ray emission,Advanced Materials,Energy,
Modified: 2025-04-06
Data for "Increased Efficiency in Planar Near-Field Scanning Using Combined Multi-Robot Motion"
Data provided by National Institute of Standards and Technology
Included here is relevant data to the publication "Increased Efficiency in Planar Near-Field Scanning Using Combined Multi-Robot Motion". Robotic antenna ranges are highly configurable, but traditional pose selection methods do not utilize the collaborative capability presented by these positioners. We present methods to reduce measurement time during planar scanning on robotic antenna ranges with redundant actuation.
Tags: Robotic Antenna Range,Antenna Metrology,Collaborative Motion,
Modified: 2025-04-06
H3O+ PTR-MS PID Library
Data provided by National Institute of Standards and Technology
The H3O+ PTR-MS PID Library is a collection of product ion distributions (PID) from volatile organic compounds measured from proton-transfer-reaction mass spectrometers (PTR-MS). This library contains PID measurements that PTR-MS users can use to understand possible measurement interferences. This library is intended to be updated with continued input from users. This library is a supplementary document to the manuscript "Product Ion Distributions using H3O+ PTR-ToF-MS: Mechanisms, Transmission Effects, and Instrument-to-Instrument Variability".
Tags: proton-transfer-reaction mass spectrometry,volatile organic compounds,product ion distributions,indoor air quality,
Modified: 2025-04-06
TREC 2001 CROSS LANGUAGE DATASET
Data provided by National Institute of Standards and Technology
Ten groups participated in the TREC-2001 cross-language information retrieval track, which focussed on retrieving Arabic language documents based on 25 queries that were originally prepared in English. French and Arabic translations of the queries were also available.
Tags: TREC text retrieval conference,
Modified: 2025-04-06
NIST ThermoData Engine - Pure Compounds - SRD 103a
Data provided by National Institute of Standards and Technology
The ThermoData Engine fully implements all major principles of the concept of dynamic data evaluation formulated at NIST?s Thermodynamics Research Center (TRC). Dynamic data evaluation relies on large electronic databases to store the currently known experimental data along with detailed descriptions of relevant metadata and uncertainties.
Tags: ThermoML,Thermodynamics Research Center,consistency enforcement,data retrieval,experimental data,fitting,grouping,normalization,prediction,sorting,thermochemical,thermodynamics,thermophysical,
Modified: 2025-04-06
NIST ThermoData Engine - Pure Compounds, Binary Mixtures and Reactions - SRD 103b
Data provided by National Institute of Standards and Technology
The ThermoData Engine fully implements all major principles of the concept of dynamic data evaluation formulated at NIST?s Thermodynamics Research Center (TRC). Dynamic data evaluation relies on large electronic databases to store the currently known experimental data along with detailed descriptions of relevant metadata and uncertainties.
Tags: ThermoML,Thermodynamics Research Center,consistency enforcement,data retrieval,experimental data,fitting,grouping,normalization,prediction,sorting,thermochemical,thermodynamics,thermophysical,
Modified: 2025-04-06
Trojan Detection Software Challenge - rl-colorful-memory-sep2024-train
Data provided by National Institute of Standards and Technology
This is the training data used to create and evaluate trojan detection software solutions. This data, generated at NIST, consists of RL agents operating in the Colorful Memory environment. 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 that trigger behavior in the trained AI models.
Tags: Trojan Detection; Artificial Intelligence; AI; Machine Learning; Adversarial Machine Learning;,
Modified: 2025-04-06
Next Generation Sequences for Wild-caught Coho Salmon (RM 8256): Nucleotide sequences and their quality scores recorded in a FASTQ file obtained via Next Generation sequencing of mitochondrial DNA extracted from Coho salmon
Data provided by National Institute of Standards and Technology
Closely related species of Salmonidae, including Pacific and Atlantic salmon, can be distinguished from one another based on nucleotide sequences from the cytochrome c oxidase sub-unit 1 mitochondrial gene (CO1), using ensembles of short-reads aligned to genetic barcodes that serve as digital proxies of the relevant species. This is accomplished by exploiting both the nucleotide sequences and their quality scores recorded in a FASTQ file obtained via Next Generation sequencing of mitochondrial DNA extracted from Coho salmon caught with hook and line in the Gulf of Alaska.
Tags: Coho salmon,RM 8256,NGS,
Modified: 2025-04-06
Measuring Microbial Community-Wide Antibiotic Resistance Propagation via Natural Transformation in the Human Gut Microbiome
Data provided by National Institute of Standards and Technology
This repository includes the raw data, analysis code, and results of a systematic analysis of natural transformation (i.e., horizontal gene transfer; HGT) of bacteria in a naturally occurring microbiome (human stool) following exposure to free extracellular DNA (eDNA) that coded for antibiotic resistance. A full description of this effort is available in the associated publication.
Tags: microbiome,horizontal gene transfer,natural transformation,antibiotic resistance,
Modified: 2025-04-06