AndreaBozzo/ceres-open-data-index huggingface dataset:
Data to support "Rapid GC-MS as a Screening Tool for Forensic Fire Debris Analysis"

This data set contains raw GC-MS data files of neat ignitable liquids, substrates, and simulated fire debris samples. All samples were analyzed by conventional GC-MS and rapid GC-MS, a fast chromatographic screening technique. The raw data files contain chromatographic data (counts vs. retention time) for all samples analyzed. Gasoline and diesel fuel were chosen as ignitable liquids. Substrates (both unburned and burned without ignitable liquids) included carpet, wood, and primed wood. The simulated fire debris samples were generated by pouring aliquots of each ignitable liquid onto each substrate and subsequently igniting. The debris samples were prepared by passive-headspace extraction and analyzed by rapid GC-MS and traditional GC-MS. Major compounds in both gasoline and diesel fuel were identified following analysis by both techniques.Certain commercial equipment, instruments, or materials are identified in this dataset in order to specify the experimental procedure adequately. Such identification is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the materials or equipment identified are necessarily the best available for the purpose.

Tags: fire-debris-analysis, gas-chromatography-mass-spectrometry, ignitable-liquid-residue, screening-methods
Organization: National Institute of Standards and Technology
QIF PMI Report Software

The QIF PMI Report (QPR) software generates a spreadsheet from a QIF (Quality Information Framework) file containing Product and Manufacturing Information (PMI).   QIF is a unified XML framework standard for computer-aided quality QIF systems, available free to all implementers.  QIF enables the capture, use, and re-use of metrology-related information throughout the Product Lifecycle Management (PLM) and Product Data Management (PDM) domains.  QIF was created by the Digital Metrology Standards Consortium. PMI consists of annotations and attributes that define product geometry and product specifications. PMI includes annotations to specify Geometric Dimensioning and Tolerancing (GD&T), as well as non-geometric data such as surface texture specifications, finish requirements, process notes, material specifications, and welding symbols. GD&T is a symbolic language used to communicate tolerances on manufactured parts.  PMI in QIF is defined by the QIF MBD (Model-based Definition). The spreadsheet that QPR generates creates a visual presentation of the PMI from its semantic definition in the QIF file.  Measurements and QPids are also reported.  QPR does not consider any of the graphical PMI in a QIF file.

Tags: interoperability, manufacturing, pmi, qif, quality
Organization: National Institute of Standards and Technology
NIST Electron Elastic-Scattering Cross-Section Database - SRD 64

Note that this SRD supersedes SRD 64 Version 3.2. The NIST Electron Elastic-Scattering Cross-Section Database provides values of differential elastic-scattering cross sections, total elastic-scattering cross sections, phase shifts, and transport cross sections in electron-atom scattering for elements with atomic numbers from 1 to 96 and for electron energies between 50 eV and 300 keV (in steps of 1 eV). Knowledge of elastic-scattering effects is important for the development of theoretical models for quantitative analysis by Auger-electron spectroscopy, X-ray photoelectron spectroscopy, electron microprobe analysis, and analytical electron microscopy. These data are also needed for modeling of electron transport in radiation dosimetry, electron-beam lithography, and interactions of ionizing radiation with matter. The database is designed to facilitate simulations of electron transport for these and similar applications in which electron energies from 50 eV to 300 keV are utilized. An analysis of available elastic-scattering cross-section data has been published [A. Jablonski, F. Salvat, and C. J. Powell, J. Phys. Chem. Ref. Data 33, 409 (2004)].

Tags: analytical-electron-microscopy, auger-electron-spectroscopy, cross-section, elastic-scattering, electron-probe-microanalysis, electron-scattering, electron-spectroscopy, electron-transport, surface-analysis, x-ray-photoelectron-spectroscopy, x-ray-spectroscopy
Organization: National Institute of Standards and Technology
Lead and Arsenic X-ray absorption spectral models fit as linear combination of known standards

In this study, smelter contaminated soil was treated with various soil amendments (ferric sulphate [Fe2(SO4)3], triple superphosphate [TSP] and biochar) to determine their efficacy in immobilizing soil lead (Pb) and arsenic (As). 
XAS were collected on soils and mine waste materials at the Materials Research Collaborative Access Team 10-BM for As and 10-ID for Pb, Advanced Photon Source at Argonne National Laboratory. 
Arsenic XAS data collection at 10-BM was measured at the As K edge (11867 eV) using a 4-element Vortex fluorescence detector. Four layers of aluminum foil to filter out background fluorescence from iron and other elements in the samples. Three to five step scans were collected in fluorescence by Vortex detector at 45° incident to sample and down beam transmission on energy calibration standard. Energy was calibrated to set at the 1st derivative inflection point zero of sodium arsenate standard to 11874 eV. Data were then background subtracted and converted to k space for EXAFS region analysis. Data processed for EXAFS analysis were k3-weighted and all e0 set to 11870 eV for uniform k range start energy. Spline range was 0.5-12 k. 
Lead XAS data collection at 10-ID utilized a Si(111) mono to tune energy to the Pb L3-edge (13035 eV). Samples were measured in fluorescence using a Mirion-Canberra 7-element Ge detector at 45° incident to the sample. For each sample, three to five scans were collected in both transmission and fluorescence mode with a Pb foil for reference sample. Calibration was performed by assigning the first derivative inflection point of Pb foil scan to 13035 eV. 
Analysis of Pb spectra utilized LCF of the 1st derivative norm(E) from -20 to 80 eV from e0, constraints of all weights between 0 and 1 and sum of weights normalized to 1. Standards were sequentially removed based on statistical improvement of fit. Components contributing less than ten percent were removed, followed by refitting with remaining components. The combination of standards resulting in the lowest R-factor results for each sample was reported. Arsenic spectra were analyzed LCF utilizing the EXAFS range of spectra. Preliminary data checking indicated As oxidation states of all samples contained only AsV as confirmed by matching edge position with the sodium arsenate pellet used for energy calibration. As EXAFS range were utilized for quantitative speciation from a k-range of 3-10 Å-1. 

This dataset is associated with the following publication:
Alankarage, D., A. Betts, K.G. Scheckel, C. Herde, M. Cavallaro, and A.L. Juhasz. Remediation options to reduce bioaccessible and bioavailable lead and arsenic at a smelter impacted site - consideration of treatment efficacy.   ENVIRONMENTAL POLLUTION. Elsevier Science Ltd, New York, NY, USA, 341: 122881, (2024).

Tags: arsenic, bioaccessibility, biochar, immobilization, lead, plumbojarosite, relative-bioavailability, tsp
Organization: U.S. Environmental Protection Agency
TTB Presentations

TTB periodically participates in industry conferences and seminars to provide training or relevant TTB-related information. We also occasionally hold our own training events, such as webinars or seminars. We’re sharing those presentations here for everyone’s benefit. Choose from the topics below to see a listing of related presentations.

Tags: alcohol, ammunition, beer, cider, colas, distilled, firearms, nonbeverage, spirits, tax, trade_practices, wine
Organization: Department of the Treasury
Data from "High-temperature tensile constitutive data and models for structural steels in fire (NIST Technical Note 1714)"

The National Institute of Standards and Technology, as part of its report on the collapse of the World Trade Center, characterized many important steels recovered from the buildings to provide stress-strain models to analyze the impact, fires, and resulting collapse. Those tests represent a large additional data set that can be used for modeling the response of steel structures to fire. The nine steels described in this data represent a selection of the steel most likely to have been involved in the fires in the World Trade Center.This data was originally published in "High-temperature tensile constitutive data and models for structural steels in fire (NIST Technical Note 1714)" authored by William Luecke, Stephen W. Banovic, J. David McColskey. (DOI: https://dx.doi.org/10.6028/NIST.TN.1714)

Tags: constitutive-law, elevated-temperature, fire, steel, world-trade-center-investigation
Organization: National Institute of Standards and Technology
IFC File Analyzer Software

The IFC File Analyzer software generates a spreadsheet or a set of CSV (comma-separated value) files from an IFC file. IFC (Industry Foundation Classes) is the data exchange standard used to facilitate interoperability in the building and construction industry. IFC is developed by buildingSMART and is an ISO standard - ISO 16739.

Tags: bim, buildings, conformance, ifc, interoperability
Organization: National Institute of Standards and Technology
STEP File Analyzer and Viewer Software

The STEP File Analyzer and Viewer is a software tool that generates a spreadsheet or a set of  CSV (comma-separated value) files from a STEP (ISO 10303 Standard for Exchange of Product model data) Part 21 file. STEP files are used to represent product and manufacturing information (PMI) and for data exchange and interoperability between Computer-Aided Design (CAD), Manufacturing (CAM), Analysis (CAE), and Inspection (CMM) software related to the smart manufacturing digital thread. STEP is also used for the long-term archiving and retrieval of product data.  The software can also open a STEP file to view boundary representation part geometry,  tessellated part geometry, PMI for geometric dimensioning and tolerancing (GD&T), supplemental geometry, and finite element models.

Tags: cad, cae, conformance, interoperability, manufacturing
Organization: National Institute of Standards and Technology
NIST CAD Models and STEP Files with PMI

NIST has created a Test System to measure conformance of Computer-Aided Design (CAD) software to American Society of Mechanical Engineers (ASME) standards for Product and Manufacturing Information (PMI), specifically geometric dimensioning and tolerancing (GD&T) information.  The test system includes: test case definitions (2D CAD drawings with PMI), CAD models generated from the test cases, STEP files generated from the CAD models, and verification and validation reports.

Tags: cad, data-exchange, interoperability, manufacturing, pmi
Organization: National Institute of Standards and Technology
NIST Electron Elastic-Scattering Cross-Section Database - SRD 64 Version 3.2

**** Note that this SRD is superseded by SRD 64 Version 4.0. ****The NIST Electron Elastic-Scattering Cross-Section Database provides values of differential elastic-scattering cross sections, total elastic-scattering cross sections, phase shifts, and transport cross sections in electron-atom scattering for elements with atomic numbers from 1 to 96 and for electron energies between 50 eV and 300 keV (in steps of 1 eV). Knowledge of elastic-scattering effects is important for the development of theoretical models for quantitative analysis by Auger-electron spectroscopy, X-ray photoelectron spectroscopy, electron microprobe analysis, and analytical electron microscopy. These data are also needed for modeling of electron transport in radiation dosimetry, electron-beam lithography, and interactions of ionizing radiation with matter. The database is designed to facilitate simulations of electron transport for these and similar applications in which electron energies from 50 eV to 300 keV are utilized.An analysis of available elastic-scattering cross-section data has been published [A. Jablonski, F. Salvat, and C. J. Powell, J. Phys. Chem. Ref. Data 33, 409 (2004)].

Tags: analytical-electron-microscopy, auger-electron-spectroscopy, cross-section, elastic-scattering, electron-probe-microanalysis, electron-scattering, electron-spectroscopy, electron-transport, surface-analysis, x-ray-photoelectron-spectroscopy, x-ray-spectroscopy
Organization: National Institute of Standards and Technology
Establishing Monitoring Programs for Travel Time Reliability [supporting datasets]

The objective of this project was to develop system designs for programs to monitor travel time reliability and to prepare a guidebook that practitioners and others can use to design, build, operate, and maintain such systems. Generally, such travel time reliability monitoring systems are built on top of existing traffic monitoring systems. The focus of this project was on travel time reliability. The data from the monitoring systems developed in this project – from both public and private sources –included, wherever cost-effective, information on the seven sources of non-recurring congestion. This data was used to construct performance measures or to perform various types of analyses useful for operations management as well as performance measurement, planning, and programming. The work on Project L02 began with a research phase. The primary results of Project L02 research were a guidebook and a final report. An additional contribution of the research showed that it may be possible to add the variability of travel time from one segment to another. Another contribution of the research was the development of a queuing point model, an application that analytically determines travel time reliability over a freeway segment. The supporting zip file contains case study datasets for SHRP 2 Report S2-L02-RR1: Establishing Monitoring Programs for Travel Time Reliability, https://rosap.ntl.bts.gov/view/dot/4039  The files are in comma separated value (.csv) format. The compressed zip file is 84.15 MB. These files can be unzipped using any zip compression/decompression software. The .csv files can be read with any basic text editor.

Tags: case-studies, data-collection, data-files, data-quality, highway-travel, intelligent-transportation-systems, sensors, shrp2-project-l02, strategic-highway-research-program-2, traffic-surveillance, travel-time, travel-time-reliability
Organization: Department of Transportation
Incorporating travel time reliability into the Highway Capacity Manual [supporting datasets]

The Highway Capacity Manual (HCM) historically has been among the most important reference guides used by transportation professionals seeking a systematic basis for evaluating the capacity, level of service, and performance measures for elements of the surface transportation system, particularly highways but also other modes. The objective of this project was to determine how data and information on the impacts of differing causes of nonrecurrent congestion (incidents, weather, work zones, special events, etc.) in the context of highway capacity can be incorporated into the performance measure estimation procedures contained in the HCM. The methodologies contained in the HCM for predicting delay, speed, queuing, and other performance measures for alternative highway designs are not currently sensitive to traffic management techniques and other operation/design measures for reducing nonrecurrent congestion. A further objective was to develop methodologies to predict travel time reliability on selected types of facilities and within corridors. This project developed new analytical procedures and prepared chapters about freeway facilities and urban streets for potential incorporation of travel-time reliability into the HCM. The methods are embodied in two computational engines, and a final report documents the research.  This zip file contains comma separated value (.csv) files of data to support SHRP 2 report S2-L08-RW-1, Incorporating travel time reliability into the Highway Capacity Manual. Zip size is 1.83 MB. Files were accessed in Microsoft Excel 2016. Data will be preserved as is. To view publication see: https://rosap.ntl.bts.gov/view/dot/3606

Tags: forecasting, freeways, highway-capacity, highway-travel, intelligent-transportation-systems, methodology, shrp2-project-l08, software, strategic-highway-research-program-2, street, travel-time, travel-time-reliability
Organization: Department of Transportation
Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies [supporting datasets]

The objective of this project was to develop technical relationships between reliability improvement strategies and reliability performance metrics. This project defined reliability, explained the importance of travel time distributions for measuring reliability, and recommended specific reliability performance measures. The research reexamined the contribution of the various causes of nonrecurring congestion on urban freeway sections, however, some attention was also given to rural highways and urban arterials). Numerous actions that can potentially reduce nonrecurring congestion were identified with an indication of their relative importance. Models for predicting nonrecurring congestion were developed using three methods, all based on empirical procedures: The first involved before and after studies; the second was termed a 'data poor' approach and resulted in a parsimonious and easy-to-apply set of models; the third was entitled a 'data rich model' and used cross-section inputs including data on selected factors known to directly affect nonrecurring congestion. An important conclusion of the study is that actions to improve operations, reduce demand, and increase capacity all can improve travel time reliability.  The 3 attached zip files contains comma separated value (.csv) files of data to support SHRP 2 report S2-L03-RR-1, Analytical procedures for determining the impacts of reliability mitigation strategies.Zip size is 1.83 MB. Files were accessed in Microsoft Excel 2016. Data will be preserved as is. To view publication see: https://rosap.ntl.bts.gov/view/dot/3605

Tags: before-and-after-studies, highway-traffic-control, highways, improvements, intelligent-transportation-systems, nonrecurrent-congestion, shrp2-project-l03, strategic-highway-research-program-2, strategic-planning, traffic-congestion, travel-time, travel-time-reliability, travel-time-variability, uncertainty
Organization: Department of Transportation
Identification and Evaluation of the Cost-Effectiveness of Highway Design Features to Reduce Nonrecurrent Congestion [supporting datasets]

This project focused specifically on design treatments that can be used to improve travel time reliability. The objectives of this research were to (1) identify the full range of possible roadway design features used by transportation agencies to improve travel time reliability and reduce delays from key causes of nonrecurrent congestion, (2) assess their costs and operational and safety effectiveness, and (3) provide recommendations for their use and eventual incorporation into appropriate design guides. This research generated two companion products that allow transportation agencies and professionals to apply these research findings effectively in daily practice. These products are the Design Guide for Addressing Nonrecurrent Congestion, which is a catalogue of the design elements and their associated use information, and the Analysis Tool for Design Treatments to Address Nonrecurring Congestion, which is a tool to execute the various analysis procedures and models to measure the effectiveness of a design element on travel time reliability.  This zip file contains comma separated value (.csv) files of data to support SHRP 2 Report S2-L07-RR-1, Identification and Evaluation of the Cost-Effectiveness of Highway Design Features to Reduce Nonrecurrent Congestion, https://rosap.ntl.bts.gov/view/dot/4040  The compressed zip file is 12 MB. These files can be unzipped using any zip compression/decompression software. The .csv files can be read with any basic text editor.

Tags: benefit-cost-analysis, cost-effectiveness, highway-design, highway-operations, highway-safety, intelligent-transportation-systems, level-of-service, life-cycle-analysis, mathematical-models, nonrecurrent-congestion, shrp2-project-l07, strategic-highway-research-program-2, traffic-safety, travel-time, travel-time-reliability
Organization: Department of Transportation
Response, Emergency Staging, Communications, Uniform Management, and Evacuation (R.E.S.C.U.M.E.): Concept of Operations [supporting datasets]

This zip file contains 45 files of data to support FHWA-JPO-13-063 Response, Emergency Staging, Communications, Uniform Management, and Evacuation (R.E.S.C.U.M.E.) : Concept of Operations. Zip size is 9.9 MB. The files have been uploaded as-is; no further documentation was supplied by NTL. The attached zip files can be unzipped using any zip compression/decompression software. These zip file contains files in the following formats: .pdf document files which can be read using any pdf reader; .txt. files that may be opened with any text editing software; .docx files that may be opened with Microsoft Word; .kml files, Keyhole markup Language files, which are a XML file type and may be opened with any text editor [software requirements]. Files were accessed in 2017.

Tags: data-sharing, disasters-and-emergency-operations, emergency-communication-systems, intelligent-transportation-systems, mobility, r-e-s-c-u-m-e, rescume
Organization: Department of Transportation
Effectiveness of Different Approaches to Disseminating Traveler Information on Travel Time Reliability [supporting datasets]

Travel time reliability information includes static data about traffic speeds or trip times that capture historic variations from day to day, and it can help individuals understand the level of variation in traffic. Unlike real-time travel time information, which provides a current snapshot of trip conditions and travel time, reliability information can be used to plan and budget in advance for a trip. Travel time reliability information can improve urban mobility by conveying reliability-related information to system users so that they can make informed decisions about their travel.  Data files in this zipped package include macro-enabled Microsoft Excel spreadsheets. These spreadsheets operate as interactive games. To save them into open formats would destroy this functionality. Therefore the macro-enabled spreadsheets are left as-is. There were opened prior to ingest in this repository using Microsoft Excel 2010. This dataset supports SHRP 2 report S2-L14-RW-1, Effectiveness of different approaches to disseminating traveler information on travel time reliability. Zip contains 628 MB. Files were accessed with Microsoft Excel 2016. Data will be preserved as it is. For the publication see: https://rosap.ntl.bts.gov/view/dot/3607

Tags: definitions, human-factors, information-dissemination, intelligent-transportation-systems, messages-communications, nonrecurrent-congestion, shrp2-project-l14, state-of-the-practice, strategic-highway-research-program-2, traffic-delays, travel-time, travel-time-reliability, traveler-information-and-communication-systems
Organization: Department of Transportation