Results 11 - 20 of 131

• Advanced Tutorial on Wireless Communication and Electronic Tracking: Electronic Tracking Systems Performance
  5/9/2019 - Training materials
  Section 3 of the OMSHR advanced tutorial on wireless communication and electronic tracking covering electronic tracking systems performance.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Communication System Performance
  5/9/2019 - Training materials
  Section 2 of the OMSHR advanced tutorial on wireless communication and electronic tracking covering communication system performance.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Appendix B
  5/9/2019 - Training materials
  Appendix B of the OMSHR advanced tutorial on wireless communication and electronic tracking covering basic equations.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Appendix A
  5/9/2019 - Training materials
  Appendix A of the OMSHR advanced tutorial on wireless communication and electronic tracking defining system, transmitter, receiver and antenna characteristics.
• Electromagnetic Noise Data Acquisition for the Evaluation of TTE Communications in Coal Mines
  4/8/2019 - Contracts and cooperative agreements
  A contract to improve the performance of TTE radio systems intended for use in coal mine emergency communications between the mine and the surface.
• Data Transport Over Leaky Feeder Systems Using Internet-Protocol-Enabled Land Mobile Radios
  3/5/2019 - Peer reviewed journal articles
  An article presenting the selection, configuration and testing methodologies employed by NIOSH researchers to integrate commercially available land mobile data radios into an existing leaky feeder communication system to provide IP data transport.
• An FMM-FFT Accelerated SIE Simulator for Analyzing EM Wave Propagation in Mine Environments Loaded with Conductors
  5/1/2018 - Peer reviewed journal articles
  An article presenting an FMM-FFT-SIE full-wave simulator used to characterize EM wave propagation in electrically large and loaded mine environments.
• Industrial Internet of Things: (IIoT) Applications in Underground Coal Mines
  12/1/2017 - Peer reviewed journal articles
  An article presenting the results of a feasibility study on Industrial Internet of Things (IIoT) applications in underground coal mines based on existing communication and tracking infrastructure.
• Simulation and Measurement of Through-the-Earth, Extremely Low-Frequency Signals Using Copper-Clad Steel Ground Rods
  9/1/2017 - Peer reviewed journal articles
  A paper presenting the simulation and measurement results of recent NIOSH research aimed at investigating current injection at extremely low-frequency, and in particular, ground contact impedance.
• Mathematical Modeling and Measurement of Electric Fields of Electrode-Based Through-the-Earth (TTE) Communication
  6/1/2017
  A study using a mathematical model of subsurface electric fields and a prototype electrode-based TTE system to characterize the factors that will affect electric field distribution.