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126526 results found

Measurement and Processed Data From A Graph Database Approach to Wireless IIoT Work-cell Performance Evaluation

Data provided by  National Institute of Standards and Technology

The work-cell is an essential industrial environment for testing wireless communication techniques in factory automation processes. A graph database approach to storing and analyzing network performance data from a manufacturing factory work-cell is introduced. A robotic testbed performs a pick-and-place task using two collaborative grade robot arms, machine emulators, and wireless communication devices. A graph database is implemented to capture network data and operational event data among the actors within the testbed.

Tags: industrial wireless,factory automation,testbed,measurement,instrumentation,graph database

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Regional Price Parities by State and Metro Area

Data provided by  Bureau of Economic Analysis

Regional Price Parities allow comparisons of buying power across the 50 states and the District of Columbia, or from one metro area to another, for a given year. Price levels are expressed as a percentage of the overall national level.

Tags: Regional Price Parities,buying power,state price parity,msa price parity

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Source: http://www.bea.gov/api/signup/index.cfm

GAA-GAA Coexistence in the CBRS Band: Performance Evaluation of Approach 3

Data provided by  National Institute of Standards and Technology

The General Authorized Access (GAA) users in the Citizens Broadband Radio Service (CBRS) band are the lowest priority users. They must cooperate with each other to minimize mutual interference and increase spectrum utilization. The Wireless Innovation Forum (WInnForum), a standardization body, has recommended three schemes to address this GAA-GAA coexistence issue. This dataset contains the performance data obtained from simulation experiments run to evaluate the performance of the WInnForum scheme called "Approach 3".

Tags: CBRS,3.5 GHz,GAA,Coexistence,WInnForum,Approach 3

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Process Monitoring Dataset from the Additive Manufacturing Metrology Testbed (AMMT): Overhang Part X4

Data provided by  National Institute of Standards and Technology

This dataset includes files from the experiment titled 'OverhangPartX4' pertaining to a three-dimensional (3D) additive manufacturing (AM) build performed on the Additive Manufacturing Metrology Testbed (AMMT) by Ho Yeung and Brandon Lane on June 28, 2019. The files include the input command files, materials data, in-situ process monitoring data, and metadata. This data is one of a set of 'AMMT Process Monitoring Datasets', as part of the Metrology for Real-Time Monitoring of Additive Manufacturing project at the National Institute of Standards and Technology (NIST).

Tags: additive manufacturing; laser powder bed fusion; selective laser melting;

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Optical Modeling of Single Asian Dust and Marine Air Particles: A Comparison with Geometric Particle Shapes for Remote Sensing

Data provided by  National Institute of Standards and Technology

The project that produced these data involved the analysis and modeling of atmospheric Asian dust particles and background marine air particles collected in Hawaii, USA at the Mauna Loa Observatory (MLO) of the National Oceanic and Atmospheric Administration. Individual heterogeneous dust particles were analyzed with focused ion-beam scanning electron microscopy and energy-dispersive X-ray spectroscopy.

Tags: atmospheric aerosol,Asian dust,light scattering,light absorption,radiative forcing,climate change,focused ion-beam scanning electron microscopy,FIB-SEM,energy-dispersive X-ray spectroscopy,EDX,focused ion-beam tomography,optical property modeling,discrete dipole approximation method,Environment and Climate

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Economic Census: Establishment and Firm Size Statistics for the U.S: 2017

Data provided by  United States Census Bureau

This dataset presents statistics by employment and sales, value of shipments, or revenue size for establishments and firms; single unit and multiunit firms; concentration of largest firms; and legal form of organization for selected industries for the U.S. Includes only establishments and firms with payroll.

Tags: census

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Source: http://api.census.gov/data/2017/ecnsize

REFLEAK: NIST Leak/Recharge Simulation Program for Refrigerant Blends - SRD 73

Data provided by  National Institute of Standards and Technology

REFLEAK estimates composition changes of zeotropic mixtures in leak and recharge processes. The leak/recharge simulation program consists of three parts: 1) the pre-processing section for inputting required data, 2) the computation section which simulates leak/recharge processes and, 3) the post-processing section to display calculated results and to print or store data and graphs.

Tags: CFCs,HCFCs,HFCs,air conditioning,alternative refrigerants,chemical leaks,chemistry,chlorofluorocarbons,cooling equipment,fluids,hydrochlorofluorocarbons,mixtures,ozone depletions,re charge,refrigerants,refrigeration,simulation programs,thermo chemistry,thermochemical data,thermodynamic data,thermodynamic properties,transport properties,transport property data,zeotropic mixtures

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Source: https://dx.doi.org/10.18434/T44K5B

Simulated Radar Waveform and RF Dataset Generator for Incumbent Signals in the 3.5 GHz CBRS Band

Data provided by  National Institute of Standards and Technology

This software tool generates simulated radar signals and creates RF datasets. The datasets can be used to develop and test detection algorithms by utilizing machine learning/deep learning techniques for the 3.5 GHz Citizens Broadband Radio Service (CBRS) or similar bands. In these bands, the primary users of the band are federal incumbent radar systems. The software tool generates radar waveforms and randomizes the radar waveform parameters.

Tags: 3.5 GHz,CBRS,LTE,ESC,radar,radio frequency signals,spectrum,machine learning,deep learning,detection

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Source: https://github.com/usnistgov/SimulatedRadarWaveformGenerator

Economic Surveys: Business Patterns: County Business Patterns

Data provided by  United States Census Bureau

County Business Patterns (CBP) is an annual series that provides sub-national economic data by industry for establishments with paid employees. This series includes the number of establishments, employment during the week of March 12, first quarter payroll, and annual payroll. Data for establishments are presented by geographic area, 2- thru 6-digit NAICS industry, Legal Form of Organization (U.S. and state only), and employment size of the establishment.

Tags: census

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Source: http://api.census.gov/data/2018/cbp

2018 Economic Annual Surveys: Business Patterns: Zipcode Business Patterns

Data provided by  United States Census Bureau

ZIP Code Business Patterns (ZBP) is an annual series that provides economic data by ZIP Code. This table includes the number of establishments, employment during the week of March 12, first quarter payroll, and annual payroll for All Industries (NAICS 00) by 5-digit ZIP Code.

Tags: census

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Source: http://api.census.gov/data/2018/zbp