Results 221 - 230 of 646

• Longwall Shield Recovery Using Mobile Roof Supports
  7/1/2007 - Conference papers
  This paper addresses both the safety and the operational issues associated with mobile roof support (MRS) usage during shield recovery. It also discusses new developments, including the use of the inherently safer battery powered MRS's.
• Roof Stability Issues in Underground Limestone Mines in the United States
  7/1/2007 - Conference papers
  This paper presents the results of a study of roof conditions in 34 limestone mines in the Eastern and Midwestern U.S.
• Upper Extremity Joint Moment and Force Predictions When Using a Joystick Control
  6/1/2007 - Conference papers
  This paper discusses the application of digital human models to examine computer-generated forces necessary to move specific joysticks by using roof bolter virtual operators to predict the forces experienced on the operator's upper extremities.
• Current Dust Control Practices on U.S. Longwalls
  6/1/2007 - Conference papers
  Results from underground dust surveys to identify current operating practices and the types of controls being used at longwall operations are presented as an update on longwall dust control technology and operating practices.
• Longwall Shield and Standing Gateroad Support Designs - Is Bigger Better?
  6/1/2007 - Conference papers
  There are fundamental aspects of support design and ground control that we still do not understand or recognize when designing a support system. These issues are evaluated and a different approach to support design is proposed.
• Recent Developments in Coal Mining Safety in the United States
  6/1/2007 - Conference papers
  This paper briefly describes the progress in mine safety in the United States, with emphasis on recent events that have followed since the explosion at the Sago Mine in January 2006. Legislation following the mine accidents in 2006 and areas of work car...
• Reducing Noise-Induced Hearing Loss in Longwall Coal Mine Workers: NIOSH's Approach
  6/1/2007 - Conference papers
  This paper presents an overview of ongoing studies, a progress report of results, and the implications for reducing worker noise exposures and preventing noise-induced hearing loss in longwall mining workers.
• Tell Me A Story... Using Stories to Improve Occupational Safety Training
  6/1/2007 - Conference papers
  This paper discusses the social and cultural power of stories, and how they have been used to develop training for skilled blue-collar workers.
• Multiple-Seam Mining Interactions: Case Histories from the Harris No. 1 Mine
  5/1/2007 - Conference papers, Information Circulars
  A detailed evaluation of the multiple-seam experiences at Harris No. 1 Mine was done as part of NIOSH's nationwide multiple-seam mining case history database.
• Observations and Evaluation of Floor Benching Effects on Pillar Stability in U.S. Limestone Mines
  5/1/2007 - Conference papers
  A survey of roof and pillar conditions in limestone mines has revealed that bench mining of the floor between pillars can cause instability in the pillars at the perimeter of the benched area. Numerical models were used to assess those effects.