Results 71 - 80 of 234

• Time Domain and Frequency Domain Deterministic Channel Modeling for Tunnel/Mining Environments
  1/1/2017 - Peer reviewed journal articles
  An article that proposes two physics-based, deterministic ultra-wideband (UWB) channel models for characterizing wireless channels in mining/tunnel environments — one in the time domain and the other in the frequency domain.
• Determining Underground Mining Work Postures Using Motion Capture and Digital Human Modeling
  12/1/2016 - Peer reviewed journal articles
  In this article by NIOSH, researchers collected and analyzed motion capture data and calculated body joint angles in order to enhance intelligent proximity detection systems used with continuous mining machines.
• Computational Fluid Dynamics Modeling of a Medium-sized Surface Mine Blasthole Drill Shroud
  11/1/2016 - Peer reviewed journal articles
  This article from NIOSH describes the methodology used to develop the computational fluid dynamics models, to calculate the model input and to validate the models based on the experimental data.
• Virtual Reality to Train and Assess Emergency Responders
  10/22/2016 - Research projects
  A research project designed to determine optimal use of virtual reality (VR) technologies for training and assessing mine emergency responders.
• Support Design Procedures for Difficult Ground Conditions
  10/22/2016 - Research projects
  A project to develop engineering guidelines for support design that will reduce groundfall fatalities under supported roof in underground coal mines.
• Development of Guidelines for the Design of Support Systems to Manage Coal Mine Rib Hazards
  10/22/2016 - Research projects
  A project to develop guidelines for determining the appropriate level of support and design methods for support systems to minimize the risk and severity of injuries to miners from rib falls in underground coal mines.
• Validation of Temperature and Humidity Thermal Model of 23-person Tent-type Refuge Alternative
  9/1/2016 - Peer reviewed journal articles
  A journal article describing a thermal model of a 23-person tent-type refuge alternative (RA). Testing using this model showed increases in temperature and relative humidity over the 96-hour test period.
• Modeling Natural Gas Explosions for Coal Mine Safety
  7/19/2016 - Contracts and cooperative agreements
  A contract to simulate the development and evolution of natural gas (NG) explosions in mine tunnels.
• Generation of Geomechanical and Time-dependent Properties of Coal and Coal Measure Rocks
  7/19/2016 - Contracts and cooperative agreements
  A capacity-building contract to understand the time-dependent behavior of some coal measure rocks under certain loading conditions, evaluate post-failure behavior, and acquire reliable site-specific input properties for numerical modeling.
• Full-Wave Modeling of MF Propagation
  7/19/2016 - Contracts and cooperative agreements
  A contract to develop models of MF propagation in mines based on the results simulated through full-wave electromagnetic models.