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72 results found

SRM 2452 Hydrogen in Titanium Alloy

Data provided by  National Institute of Standards and Technology

SRM 2452 Hydrogen in Titanium (Nominal Mass Fraction 60 mg/kg) - This Standard Reference Material (SRM) is intended for use in the evaluation of methods and the calibration of equipment used in the determination of hydrogen in titanium alloy. SRM 2452 consists of one bottle containing 10 g of titanium alloy chips. This data is public in the Certificate of Analysis for this material.

Tags: elemental analysis,titanium,hydrogen in titanium,ASTM E1447,manufacturing,

Modified: 2024-02-22

Views: 0

SRM 131h Refined Cast Iron

Data provided by  National Institute of Standards and Technology

Standard Reference Material 131h Refined Cast Iron - This Standard Reference Material (SRM) is intended primarily for use in validation of chemical and instrumental methods of analysis. It can be used to validate value assignment of in-house reference materials and, if necessary, to calibrate carbon/sulfur analyzers. A unit of SRM 131h consists of a bottle containing 100 g of chips. This data is public in the Certificate of Analysis for this material.

Tags: low alloy steel,cast iron,carbon,sulfur,Standard Reference Material,SRM,SRM 131h,combustion,infrared detection,manufacturing specification,manufacturing,

Modified: 2024-02-22

Views: 0

Intel Edison wireless latency and reliability computing code

Data provided by  National Institute of Standards and Technology

This software provides a framework to generate events with both application payload identification and timestamps. Events information is logged at each producer and consumer. The logs can be used to derive latency and reliability metrics for cyber-physical systems experiments in which wireless communication is used for messaging.

Tags: IoT,wireless,RF,manufacturing,Node.js,

Modified: 2024-02-22

Views: 0

JARVIS: Joint Automated Repository for Various Integrated Simulations

Data provided by  National Institute of Standards and Technology

JARVIS (Joint Automated Repository for Various Integrated Simulations) is a repository designed to automate materials discovery using classical force-field, density functional theory, machine learning calculations and experiments.

The Force-field section of JARVIS (JARVIS-FF) consists of thousands of automated LAMMPS based force-field calculations on DFT geometries. Some of the properties included in JARVIS-FF are energetics, elastic constants, surface energies, defect formations energies and phonon frequencies of materials.

Tags: Density functional theory,classical interatomic potential,force-field,python,JARVIS,MGI,MDCS,RESTAPI,automation,

Modified: 2024-02-22

Views: 0

FEASST: Free Energy and Advanced Sampling Simulation Toolkit

Data provided by  National Institute of Standards and Technology

The Free Energy and Advanced Sampling Simulation Toolkit (FEASST) is a free, open-source, modular program to conduct molecular and particle-based simulations with flat-histogram Monte Carlo and molecular dynamics methods. It is a software written in C++ and python which is made publicly available to aid in reproducibility. It is also provided as a service to the scientific community in which there are few , if any, Monte Carlo programs that support flat histogram methods and advanced sampling algorithms. This software is expected to be updated frequently with new methods.

Tags: monte carlo,molecular simulation,free energy,flat histogram,C++,python,

Modified: 2024-02-22

Views: 0

Source of the Refl1d program for modeling and analyzing neutron and X-ray reflectometry data, with the addition of distributed roughness capability.

Data provided by  National Institute of Standards and Technology

Source of the Refl1d program for modeling and analyzing neutron and X-ray reflectometry data, with the addition of distributed roughness capability.

Tags: neutron scattering,reflectometry,polarized,Bayesian,roughness,python,

Modified: 2024-02-22

Views: 0

pyPRISM: A Computational Tool for Liquid State Theory Calculations of Macromolecular Materials

Data provided by  National Institute of Standards and Technology

Polymer Reference Interaction Site Model (PRISM) theory describes the equilibrium spatial-correlations of liquid-like polymer systems including melts, blends, solutions, block copolymers, ionomers, liquid crystal forming polymers and nanocomposites. Using PRISM theory, one can calculate thermodynamic (e.g., second virial coefficients, Flory-Huggins interaction parameters, potentials of mean force) and structural (eg., pair correlation functions, structure factors) information for these macromolecular materials.

Tags: polymer,theory,liquid-state theory,python,polymer nanocomposite,polymer solution,X-ray scattering,neutron scattering,software,tool,computation,

Modified: 2024-02-22

Views: 0

Data and Results from Three Peg-in-Hole Experiments for Improving Insertion Tasks

Data provided by  National Institute of Standards and Technology

A method was developed to reduce the point-based registration error by restoring the rigid body condition (RRBC method). Registration is the process of transforming one coordinate frame to another coordinate frame. The coordinate frame from which points are transformed is called the working frame and the coordinate frame to which points are transformed is called the destination frame. The RRBC method can be used to reduce the uncertainty of a hole location and thus, improve the success rate for insertion tasks.

Tags: assembly,insertion task,manufacturing,peg-in-hole experiments,rigid-body,registration,registration error,target registration error.,

Modified: 2024-02-22

Views: 0

Linear Axis Testbed - Rail Degradation Experiment 01

Data provided by  National Institute of Standards and Technology

In this study, a rail of a linear axis testbed was intentionally degraded to various levels, affecting the carriage motion, which can be deduced with either an inertial measurement unit (IMU) or a laser-based reference system. The rail was degraded over a 10-cm-long region. Thus, the two trucks that move on the rail interact with this region of the rail, changing the translational and angular error motions of the carriage. To mechanically simulate spalling, a handheld grinder was used to wear the surface of the raceway groove of the rail.

Tags: manufacturing,machining,machine tool,linear axis,error motion,degradation,accelerometer,rate gyroscope,inertial measurement unit,

Modified: 2024-02-22

Views: 0

Model of the Wireless Factory Work-cell using the Systems Modeling Language

Data provided by  National Institute of Standards and Technology

Wireless technology is a key enabler of the vision of the future factory work-cell. Such work-cell will operate autonomously with a high degree of mobility enabled by wireless technology. This model describes the work-cell using the Systems Modeling Language (SysML). Using SysML the structural and parametric characteristics of the work-cell are described. Our model provides the architectural components and performance constraints of the work-cell in which wireless is used for a significant portion of connectivity. It identifies the structural components, interfaces, and data flows.

Tags: industrial wireless,industrial communication,wireless sensor networks,factory communication,industrial control,manufacturing,cyber-physical systems,SysML,

Modified: 2024-02-22

Views: 0