Results 41 - 50 of 55

• Remote Gob Gas Venthole Monitoring and Cellular Telephone-Based Real-Time Data Transmission System
  10/1/2002 - Conference papers
  Report on the development and field testing of a solar powered, remote gob gas venthole monitoring and cellular telephone-based real-time data transmission system.
• Lightning Propagation Through the Earth and its Potential for Methane Ignitions in Abandoned Areas of Underground Coal Mines
  10/1/2002 - Conference papers
  This paper addresses the question, 'Can lightning cause potential differences capable of igniting methane-and-air mixtures at overburden depths at which underground coal mining occurs?'
• Evaluating Performance Characteristics of Machine-Mounted Methane Monitors by Measuring Response Time
  6/1/2002 - Conference papers
  This publication examines a procedure for measuring the response time of machine-mounted methane monitors
• Chemical and Physical Factors that Influence N0x Production During Blasting: Exploratory Study
  2/1/2002 - Conference papers
  Report on a NIOSH study to identify factors that may contribute to nitrogen oxides (NOx) production associated with non-ideal detonation of blasting agents.
• Factors Affecting the Location of Methanometers on Mining Equipment
  6/1/2001 - Conference papers
  This publication develops criteria for selecting the best machine locations for monitoring methane and gives recommendations for revising methane action levels for alternative sampling locations.
• Effects of Water Sprays and Scrubber Exhaust on Face Methane Concentrations
  6/1/2001 - Conference papers
  Research to determine how machine-mounted water sprays and a scrubber interact to reduce methane levels and what spray configurations provide the best face ventilation when used with a scrubber.
• The Modified Direct Method: A Solution for Obtaining Accurate Coal Desorption Measurements
  5/1/2001 - Conference papers
  This paper covers the development of NIOSH's modified direct method to measure the gas content of coal samples.
• Effects of Water Sprays Used With a Machine-Mounted Scrubber on Face Methane Concentrations
  2/1/2001 - Conference papers
  Past studies with blowing face ventilation systems have shown that using a machine-mounted scrubber and water sprays can reduced methane levels at the face.
• Factors Affecting Fumes Production of an Emulsion and ANFO/Emulsion Blends
  1/1/2001 - Conference papers
  Study of toxic fumes produced by the detonation of ANFO/emulsion blends. An extension of previous ANFO fumes production research that includes an emulsion blasting agent.
• Evaluation of New Methods and Facilities to Test Explosion-Resistant Seals
  1/1/2001 - Conference papers
  This paper provides a brief overview of the ongoing study to evaluate the use of these chambers for pressure loading of full-scale seal designs using compressed air, water, or internal gas explosions.