Results 211 - 220 of 618

• Respirable Size-Selective Sampler for End-of-Shift Quartz Measurement: Development and Performance
  5/1/2017 - Peer reviewed journal articles
  An article by NIOSH about a study to develop a respirable size-selective sampler for direct-on-filter (DoF) quartz measurement at the end-of-shift (EoS) using a portable Fourier transform infrared (FTIR) spectrometer.
• Ray Tracing and Modal Methods for Modeling Radio Propagation in Tunnels With Rough Walls
  5/1/2017 - Peer reviewed journal articles
  An article that discusses how wall roughness affects radio propagation in tunnels, and presents a unified ray tracing and modal method for modeling radio propagation in tunnels with rough walls.
• Respirable Dust Measured Downwind During Rock Dust Application
  5/1/2017 - Peer reviewed journal articles
  A paper discussing underground evaluations conducted in an attempt to quantify respirable rock dust generation when using untreated rock dust and rock dust treated with an anticaking additive.
• Direct-on-Filter alpha-Quartz Estimation in Respirable Coal Mine Dust using Transmission Fourier Transform Infrared Spectrometry and Partial Least Squares Regression
  5/1/2017 - Peer reviewed journal articles
  An article by NIOSH about a study demonstrating the feasibility of end-of-shift measurement of α-quartz using a direct-on-filter (DoF) method to analyze coal mine dust samples deposited onto polyvinyl chloride filters.
• Effects of Mine Strata Thermal Behavior and Mine Initial Temperatures on Mobile Refuge Alternative Temperature
  4/1/2017 - Peer reviewed journal articles
  A study indicating that mine strata temperature increases and mine strata initial temperatures must be accounted for in the physical testing or thermal simulations of RAs.
• Cross Formational Flow of Water into Coalbed Methane Reservoirs: Controls on Relative Permeability Curve Shape and Production Profile
  3/1/2017 - Peer reviewed journal articles
  This article by NIOSH investigates the impact of water flow from an external source into coalbed on production performance and also on reservoir variables.
• 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.
• Design Concerns of Room and Pillar Retreat Panels
  1/1/2017 - Peer reviewed journal articles
  A paper detailing observations made in four consecutive room and pillar retreat panels and the data collected from an instrumentation site during retreat mining.
• Development of a Roof Bolter Canopy Air Curtain for Respirable Dust Control
  1/1/2017 - Peer reviewed journal articles
  An article by NIOSH
• Prediction of Human Core Temperature Rise and Moisture Loss in Refuge Alternatives for Underground Coal Mines
  1/1/2017 - Peer reviewed journal articles
  Heat and humidity buildup is a major concern within coal mine refuge alternatives. High temperature and humidity levels inside a refuge alternative may expose occupants to heat stress. This article addresses a model used to measure those stresses.