Results 41 - 50 of 403

• Evaluation of Smoke Detectors for Use in Underground Mines
  2/1/2009 - Conference papers
  This report describes experiments and their results in determining the responses of a prototype smoke detector and a commercially available photoelectric smoke detector to smoke particles generated from various combustion sources.
• Pumpable Roof Supports: An Evolution in Longwall Roof Support Technology
  12/1/2008 - Peer reviewed journal articles
  This report examines the development of modern pumpable roof support technology and provides a full description of the performance capabilities of each of the support products now on the market.
• The Status of Mine Fire Research in the United States
  9/1/2008 - Conference papers
  This paper summarizes recent accomplishments in a research program that is addressing mine fire prevention, detection, management, and suppression, and provides an overview of the next phase of the NIOSH mine fire research program.
• A Gas Pressure-Based Drift Round Blast Design Methodology
  6/1/2008 - Conference papers
  The paper provides: (a) a description of the gas pressure-based design approach to blasting, (b) a simple technique for estimating the damage radius of the buffer row of holes, and (c) a discussion of smoothwall design for the contour row of holes.
• The Borehole Monitoring Experiment: Field Measurements of Reservoir Conditions and Responses in Longwall Panel Overburden During Active Mining
  6/1/2008 - Conference papers
  This paper describes the results of a NIOSH borehole monitoring experiment (BME) on an active longwall panel.
• Keeping Knees Healthy in Restricted Work Spaces: Applications in Low-Seam Mining
  5/1/2008 - Information Circulars, Training materials
  This training package educates the mining community about possible interventions beyond kneepads that may be used to help decrease knee injury rates.
• Guidelines for the Prediction and Control of Methane Emissions on Longwalls
  3/1/2008 - Information Circulars, Safety guidelines, tips, and checklists
  In this report, several practical guidelines are recommended for controlling longwall coalbed methane. All predictions are based on determinations made for the Pittsburgh Coalbed in southwestern Pennsylvania.
• Modeling and Prediction of Ventilation Methane Emissions of U.S. Longwall Mines Using Supervised Artificial Neural Networks
  2/1/2008 - Peer reviewed journal articles
  This study proposes a principal component analysis (PCA) and artificial neural network (ANN)-based approach to predict the ventilation methane emission rates of U.S. longwall mines.
• Diagnosing and Controlling Moisture-Sensitive Roof in Coal Mines
  1/1/2008 - Peer reviewed journal articles
  Moisture-sensitive roof rocks have contributed to time-dependent roof falls. NIOSH research proves the value of a wet/dry cycling test for rock evaluation.
• Guidelines for the Development of a New Miner Training Curriculum
  1/1/2008 - Information Circulars, Safety guidelines, tips, and checklists
  This report is intended to help mine safety trainers better prepare to teach new underground coal miners. It identifies 2 different approaches to instruction, i.e. using a syllabus or using a curriculum, and discusses their pros and cons.