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897 results found

SEDCORR: An Algorithm for Correcting Systematic Energy Deficits in the Atom Probe Mass Spectra

Data provided by  National Institute of Standards and Technology

SEDCORR is an open-source Python module designed to correct for the systematic energy deficits in atom probe mass spectra of electrically insulating samples. The assumption of the algorithm is that the mass spectrum for a dataset is conserved throughout the dataset and that any changes to the peak positions arise from an unknown slowly-fluctuating accelerating voltage. For computational speed, the unknown accelerating voltage is determined using a template matching FFT-based cross correlation method.

Tags: atom probe microscopy,insulator,mass spectra,energy deficit correction,python,FFT,

Modified: 2025-04-06

High-Resolution X-ray computed tomography (XCT) image data set of additively manufactured cobalt chrome samples produced with varying laser powder bed fusion processing parameters

Data provided by  National Institute of Standards and Technology

This data contains X-ray computed tomography (XCT) reconstructed slices of additively manufactured cobalt chrome samples produced with varying laser powder bed fusion (LPBF) processing parameters (scan speed and hatch spacing). A constant laser power of 195 W and a layer thickness of 20 µm were used. Unoptimized processing parameters created defects in these parts. The as-built CoCr disks were 40 mm in diameter and 10 mm in height, with no post-processing step (e.g. heat treatment or hot isostatic pressing) used.

Tags: Additive Manufacturing; defect; X-ray computed tomography; Laser powder bed fusion;,

Modified: 2025-04-06

Training and Test-Related Data for Keyphrase Extraction for Technical Language Processing

Data provided by  National Institute of Standards and Technology

Training and test-related data to accompany "Keyphrase Extraction for Technical Language Processing" by Alden Dima and Aaron Massey (in press). The subdirectories "keyphrase-extraction-jct-train" and "keyphrase-extraction-jct-test" contain a total of 1153 ThermoML files which are each associated with a corresponding Journal of Chemical Thermodynamics (JCT) article. These ThermoML files contain information about these papers in extensible markup language (XML) format including the title, authors, abstract, digital object identifier (DOI) and keywords.

Tags: MGI informatics,

Modified: 2025-04-06

Performance Evaluation of Proximity Services and Wi-Fi for PublicSafety Mission Critical Voice Application

Data provided by  National Institute of Standards and Technology

Summary of simulation results that are used to generate figures in a paper titled "Performance Evaluation of Proximity Services and Wi-Fi for PublicSafety Mission Critical Voice Application". The paper was submitted to the special issue "Broadband Wireless Access for Rural and Remote Areas" of journal "Wireless Communications and Mobile Computing" on December 12, 2019.

Tags: Mission Critical Push to Talk (MCPTT),Mission Critical Voice (MCV),Access Time,Coverage Range,Proximity Services,Off-Network Mode,Direct Mode,Wi-Fi,

Modified: 2025-04-06

Data for "Targeted Chemical Pressure Yields Tunable Millimeter-Wave Dielectric "

Data provided by  National Institute of Standards and Technology

Included here are figures and other relevant data from the paper "Targeted Chemical Pressure Yields Tunable Millimeter-Wave 5G Dielectric with Unparalleled Performance" published online in Nature Materials on 23 December 2019 (https://doi.org/10.1038/s41563-019-0564-4). Abstract: Epitaxial strain can unlock enhanced properties in oxide materials but restricts substrate choice and maximum film thickness, above which lattice relaxation and property degradation occur.

Tags: microwave,millimeter-wave,5G,targeted chemical pressure,materials,dielectric constant,loss tangent,permittivity,low loss,tunability,frequency-agile,filters,resonators,physical vapor,deposition,molecular beam epitaxy,strain engineering,barium,strontium,titanate,superlattice,ruddlesden-popper,DFT,Density functional theory,

Modified: 2025-04-06

Performance Study of a GAA-GAA Coexistence Scheme in the CBRS Band

Data provided by  National Institute of Standards and Technology

This research work is a performance study of GAA-GAA coexistence in the Citizens Broadband Radio Service (CBRS) band. The Wireless Innovation Forum (WINNForum), which has developed standards for commercial operations in this band, has recommended three approaches to GAA-GAA coexistence. This work studies one of the approaches (called Approach 1) . We provide the results of this study through the dataset archived here. There are few configurations considered in the study. We chose two geographical locations: Virginia Beach (VB) and San Diego (SD).

Tags: 3.5 GHz; CBRS; Coexistence,GAA,

Modified: 2025-04-06

2D Segmentation of Concrete Samples for Training AI Models

Data provided by  National Institute of Standards and Technology

This web-based validation system has been designed to perform visual validation of automated multi-class segmentation of concrete samples from scanning electron microscopy (SEM) images. The goal is to segment automatically SEM images into no-damage and damage sub-classes, where the damage sub-classes consist of paste damage, aggregate damage, and air voids. While the no-damage sub-classes are not included in the goal, they provide context for assigning damage sub-classes.

Tags: CS-MET computational metrology,

Modified: 2025-04-06

SRM 1450e Fibrous Glass Board

Data provided by  National Institute of Standards and Technology

SRM 1450e Fibrous Glass Board - This Standard Reference Material (SRM) is intended primarily for use in the measurement of the thermal conductivity or thermal resistance of insulation materials. SRM 1450e is a high-density fibrous glass board certified for bulk density and thermal conductivity. The SRM can be used in conjunction with ASTM C177 or ASTM C518. A unit of SRM 1450e consists of a square panel of fibrous glass and phenolic binder molded into a semi-rigid board.

Tags: bulk density,certified reference material,fit,guarded hot plate,high density molded fibrous glass board,model,regression analysis,Standard Reference Material,thermal conductivity,thermal insulation,

Modified: 2025-04-06

Selfish Mining Simulator for Cryptocurrencies

Data provided by  National Institute of Standards and Technology

Software to simulate performing a selfish mining attack against certain cryptocurrencies' difficulty algorithms. Allows tweaking parameters of the attack and the difficulty algorithms themselves.

Tags: Selfish mining,bitcoin,blockchain,mining,cryptocurrency,cryptocurrency mining,

Modified: 2025-04-06

CENDI-DCDG Reproducibility Resource Analysis Data

Data provided by  National Institute of Standards and Technology

Data from an exercise conducted by a group of federal library and data information managers who are part of the interagency CENDI Data Curation Discussion Group (DCDG). The exercise examined a cross-section of literature and other resources to reveal common reproducibility issues faced by stakeholders regardless of subject area or focus. The data include a variety of issues identified as reproducibility barriers, the solutions to such barriers, and a reflection on how researchers and information professionals can act to address the 'reproducibility crisis.'

Tags: reproducibility,reproducibility crisis,replicability,research data,landscape analysis,culture shift,

Modified: 2025-04-06