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Showing 45181 - 45200 of 82972 results
  • Using the Coal Mine Roof Rating CMRR to Assess Roof Stability in US Coal Mines
    Using the Coal Mine Roof Rating (CMRR) to Assess Roof Stability in U.S. Coal Mines
    Debasis D ;
    Mark C
    2001/08/01 | Mining Publications
    The stability of any underground opening is, in large part, a function of the strength of the rock mass which surrounds it. The Coal Mine Roof Rating (CMRR) has been developed to quantify the defects in the rock mass and compile a strength value which can be used for engineering design. The CMRR has been applied to a number of ground stability prob ...
    Public Domain
  • Preliminary Survey Report PreIntervention Quantitative Risk Factor Analysis for Ship Construction Processes at Bath Iron Works Corporation Shipyard Bath Maine
    Preliminary Survey Report: Pre-Intervention Quantitative Risk Factor Analysis for Ship Construction Processes at Bath Iron Works Corporation Shipyard, Bath, Maine
    Hudock, Stephen D. ;
    Siegfried, Karl V.
    2001/08/01 | Engineering and Physical Hazards Survey Reports
    A pre-intervention quantitative risk factor analysis was performed at various shops and locations at Bath Iron Works shipyard in Bath, Maine as a method to identify and quantify risk factors that workers may be exposed to in the course of their normal work duties. This survey was conducted as part of a larger project, funded through Maritech Advanc ...
    Public Domain
  • Effects of Bolt Spacing Bolt Length and Roof Span on Bolt Loading in a Trona Mine
    Effects of Bolt Spacing, Bolt Length, and Roof Span on Bolt Loading in a Trona Mine
    08/01/2001 | NIOSH
    NIOSH researchers installed 39 instrumented, fully grouted bolts at six test sites in a trona mine retreat panel to study mine roof stability for the improvement of workplace safety.
    Public Domain
  • Proceedings New Technology for Coal Mine Roof Support
    Proceedings: New Technology for Coal Mine Roof Support
    National Institute for Occupational Safety and Health
    August 2001 | NIOSH Numbered Publications
    Information Circular (IC) 9453. Roof falls continue to be the greatest single safety hazard faced by underground coal miners. During 1996-99, 44 coal miners lost their lives in rock falls and nearly 2,400 were injured. In addition, nearly 6,000 noninjury roof collapses were reported. Roof supports are installed to protect the miners, but support sy ...
    Public Domain
  • Surface sampling for a pesticide in dust and small spills of a solid dye
    Surface sampling for a pesticide in dust and small spills of a solid dye
    Que Hee SS ;
    Shen Y
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    The aim was to determine whether a published sampling technique for loose soil on hard surfaces achieved acceptable efficiency at surface dust/soil coverages of 10-20 mg/100 cm2. The sampler was a cordless personal sampling pump operated at 4.0 L/min connected to a cassette containing a filter, the cassette being also connected to a Tygon sampling ...
  • Interim Survey Report Recommendations for Ergonomics Interventions for Ship Construction Processes at Litton Ingalls Shipbuilding Shipyard Pascagoula Mississippi
    Interim Survey Report: Recommendations for Ergonomics Interventions for Ship Construction Processes at Litton Ingalls Shipbuilding Shipyard, Pascagoula, Mississippi
    Hudock, Stephen D. ;
    Wurzelbacher, Steven J.
    2001/08/01 | Engineering and Physical Hazards Survey Reports
    A pre-intervention quantitative risk factor analysis was performed at various shops and locations within Litton Ship Systems, Litton Ingalls Shipbuilding shipyard in Pascagoula, Mississippi as a method to identify and quantify risk factors that workers may be exposed to in the course of their normal work duties. This survey was conducted as part of ...
    Public Domain
  • Gene Environment Interactions and Exposure to JP8 Jet Fuel
    Gene Environment Interactions and Exposure to JP-8 Jet Fuel
    Butler MA ;
    Flugel CA
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    Final analysis of gene-environment interactions in the JP8 jet fuel study will be completed as soon as data are available on all outcome measures. Analysis will be simplified because results of the genotype analysis in the 316 participants have shown that there is no significant difference in distribution of genotypes across exposure categories. Ex ...
    Public Domain
  • Health Hazard Evaluation Report HETA 200004232858 Ogden Aviation Services St Louis Missouri
    Health Hazard Evaluation Report: HETA #2000-0423-2858: Ogden Aviation Services, St. Louis, Missouri
    Hess, Jeffery E. ;
    King, Bradley S.
    2001/08/01 | Health Hazard Evaluation Reports (HHE)
    In September of 2000, the National Institute for Occupational Safety and Health (NIOSH) received a request for a Health Hazard Evaluation (HHE) from employees at Ogden Aviation Services located at Lambert-St. Louis International Airport in St. Louis, Missouri. The employees expressed concerns that potential exposure to jet fuel and aircraft exhaust ...
    Public Domain
  • Evaluation of the Effectiveness of Educational Interventions in the Pennsylvania Central Region Farm Safety Pilot Project
    Evaluation of the Effectiveness of Educational Interventions in the Pennsylvania Central Region Farm Safety Pilot Project
    Hard, David L. ;
    Kassab C
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    Evaluation of agricultural safety interventions has frequently been identified as an area requiring further research. This study prospectively evaluates the effectiveness of three specific educational safety interventions in reducing farm hazards. Farm characteristics and hazard conditions at 216 farms in Pennsylvania were assessed through a questi ...
    Public Domain
  • Application of Radar to Detect Pedestrian Workers Near Mining Equipment
    Application of Radar to Detect Pedestrian Workers Near Mining Equipment
    Ruff, Todd M.
    2001/08/01 | Mining Publications
    Between 1990 and 1996, 133 accidents occurred and 23 mine workers were killed when haulage trucks used in surface mines collided with another smaller vehicle, a mine structure, or a pedestrian worker. These accidents were caused by a lack of visibility from the cab of the truck. Similar accidents are common with other types of equipment, such as fr ...
    Public Domain
  • Computation of Geometrical and Electrostatic Parameters for a Cluster Model of Silica
    Computation of Geometrical and Electrostatic Parameters for a Cluster Model of Silica
    Collins M ;
    Demchuck E
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    Respiration of crystalline silica has long been recognized as a causative agent for silicosis, a form of pulmonary fibrosis. However, the exact etiology remains to be learned. As part of a larger study, silica is being considered from a computational perspective. Calculations of Si(OH)4' Si2O(OH)6' Si3O2 (OH)8', Si4O3(OH)10' Si5O4 (OH)12' and Si8O7 ...
    Public Domain
  • Health Hazard Evaluation Report HETA 9902832855 Yellowstone National Park Yellowstone National Park Wyoming
    Health Hazard Evaluation Report: HETA #99–0283–2855: Yellowstone National Park, Yellowstone National Park, Wyoming
    Biggs, Fred R. ;
    Burt, Susan E.
    2001/08/01 | Health Hazard Evaluation Reports (HHE)
    On July 6, 1999, the National Institute for Occupational Safety and Health (NIOSH) received a request from the Occupational Safety and Health Administration (OSHA) for assistance in conducting an ergonomic evaluation of National Park Service (NPS) personnel who ride snowmobiles at Yellowstone National Park (YNP). The NPS personnel, mainly rangers a ...
    Public Domain
  • Mistakes Misconceptions and Key Points Regarding Secondary Roof Support Systems
    Mistakes, Misconceptions, and Key Points Regarding Secondary Roof Support Systems
    08/01/2001 | NIOSH
    This paper discusses misconceptions about how roof supports perform and factors that impact their performance. The paper is limited to a discussion of secondary roof support systems and powered roof supports such as longwall shields.
    Public Domain
  • Case Studies Comparing Exposure Levels by Type of Welding Operation and Evaluating the Effectiveness of Fume Extraction Guns
    Case Studies: Comparing Exposure Levels by Type of Welding Operation and Evaluating the Effectiveness of Fume Extraction Guns
    Sheehy, John W. ;
    Shulman, Stanley A.
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    Plant and Process Description: The evaluation was conducted in a plant that manufactured steam ovens for use in commercial and military kitchens. Fabrication of the steam ovens primarily involved straight-line welding of stainless and boilerplate (carbon) steel. The three main welding techniques used at this site were solid-wire gas metal arc weldi ...
    Public Domain
  • Comparison of a Dry Stack with Existing Generator Exhaust Systems for Prevention of Carbon Monoxide Poisonings on Houseboats
    Comparison of a Dry Stack with Existing Generator Exhaust Systems for Prevention of Carbon Monoxide Poisonings on Houseboats
    Dunn, Kevin H. ;
    Earnest, Gary S.
    2001/08/01 | Engineering and Physical Hazards Survey Reports
    During the period of 1990 to 2000, 111 carbon monoxide (CO) poisoning cases occurred on Lake Powell near the border of Arizona and Utah. Seventy-four of the poisonings occurred on houseboats, and sixty-four of the poisonings were attributable to generator exhaust alone. Seven of the 74 houseboat-related CO poisonings resulted in death. In February ...
    Public Domain
  • An Overview of Groundfall Injuries and Worker Activity in Underground Stone Mines
    An Overview of Groundfall Injuries and Worker Activity in Underground Stone Mines
    Pappas, Deno M. ;
    Prosser LJ Jr.
    2001/08/01 | Mining Publications
    Working underground is one of the most hazardous occupations in the United States. Underground mines have a fatality rate of at least 15 times the overall manufacturing rate for the United States. Underground stone mines have a fatality rate that is nearly 20 times the manufacturing national average. Three-quarters of these underground stone fatali ...
    Public Domain
  • Reporting Sources of Error The United States Experience
    Reporting Sources of Error: The United States Experience
    Atkinson D ;
    Giesbrecht L
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    The United States Office of Management and Budget's Federal Committee on Statistical Methodology (FCSM) has had a leadership role in discussions of the methodology of federal surveys for more than two decades (Gonzales, 1995). In 1996, the FCSM established a subcommittee to review the measurement and reporting of data quality in federal data collec ...
    Public Domain
  • Application of an EnzymeLinked Immunosorbent Assay for Glial Fibrillary Acidic Protein as an Indicator of the Presence of Brain or Spinal Cord in Meat
    Application of an Enzyme-Linked Immunosorbent Assay for Glial Fibrillary Acidic Protein as an Indicator of the Presence of Brain or Spinal Cord in Meat
    Childs KD ;
    Hossner KL
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    The presence of brain or spinal cord as an inadvertent contaminant of meat may result from the stunning of livestock or the preparation of advanced meat, recovery meat from vertebral column. If the bovine spongiform encephalopathy (BSE) agent was present in the animals being processed, this could be a food safety concern. The current methods to det ...
    Public Domain
  • The effects of heat stress on air force employees conducting fuel cell maintenance activities on air force jets
    The effects of heat stress on air force employees conducting fuel cell maintenance activities on air force jets
    Krake, Ann M.
    2001/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    The degree to which metabolic responses occur in reaction to hot environments differs per individual; however, when any human body is exposed to heat and the internal (core) body temperature rises, the body must rid itself of the excess heat. It does this automatically by increasing cardiac output and expanding larger blood vessels to accommodate t ...
    Public Domain
  • Safety vs Productivity and Other Factors in US Underground Coal Mines
    Safety vs. Productivity and Other Factors in US Underground Coal Mines
    Grayson, R. Larry
    2001/08/01 | Mining Publications
    Based on the relationships between severity measure vs. productivity and other factors, this paper presents a comprehensive analysis of US underground coal mine injuries in 1996 by mine size. From the 1996 data, it was concluded that, generally, the larger the mine, the more productive it is (in tons per employee-hour) but the more severe is its in ...
    Public Domain
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