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Showing 3641 - 3660 of 82972 results
  • Construction Toolbox Talk Aerial Lifts Safety
    Construction Toolbox Talk: Aerial Lifts Safety
    National Institute for Occupational Safety and Health  ...
    2022/08/01 | NIOSH Numbered Publications
    The National Institute for Occupational Safety and Health (NIOSH) and The Center for Construction Research and Training - CPWR developed the Construction Toolbox Talks series to raise awareness of workplace hazards and how to prevent injuries and illnesses. This series is free and accessible online. Foremen, supervisors, business owners and safety ...
    Public Domain
  • Construction Toolbox Talk Electrical Safety Power
    Construction Toolbox Talk: Electrical Safety: Power
    National Institute for Occupational Safety and Health  ...
    2022/08/01 | NIOSH Numbered Publications
    The National Institute for Occupational Safety and Health (NIOSH) and The Center for Construction Research and Training - CPWR developed the Construction Toolbox Talks series to raise awareness of workplace hazards and how to prevent injuries and illnesses. This series is free and accessible online. Foremen, supervisors, business owners and safety ...
    Public Domain
  • Construction Toolbox Talk Buried Utilities Safety
    Construction Toolbox Talk: Buried Utilities Safety
    National Institute for Occupational Safety and Health  ...
    2022/08/01 | NIOSH Numbered Publications
    The National Institute for Occupational Safety and Health (NIOSH) and The Center for Construction Research and Training - CPWR developed the Construction Toolbox Talks series to raise awareness of workplace hazards and how to prevent injuries and illnesses. This series is free and accessible online. Foremen, supervisors, business owners and safety ...
    Public Domain
  • Construction Toolbox Talk Preventing Falling Objects
    Construction Toolbox Talk: Preventing Falling Objects
    National Institute for Occupational Safety and Health  ...
    2022/08/01 | NIOSH Numbered Publications
    The National Institute for Occupational Safety and Health (NIOSH) and The Center for Construction Research and Training - CPWR developed the Construction Toolbox Talks series to raise awareness of workplace hazards and how to prevent injuries and illnesses. This series is free and accessible online. Foremen, supervisors, business owners and safety ...
    Public Domain
  • Characterization of Microplastics in Sediment Using Stereomicroscopy and Laser Direct Infrared LDIR Spectroscopy
    Characterization of Microplastics in Sediment Using Stereomicroscopy and Laser Direct Infrared (LDIR) Spectroscopy
    Cali S ;
    Chen HY
    2022/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    The analysis of microplastics (MP) becomes more difficult for smaller sizes, especially in complex matrices such as sediment of natural waters. In this work, we analyzed MPs in sediment using laser direct infrared (LDIR) imaging, a relatively new technique in environmental MP studies. Sediment samples were spiked with analytical surrogates (polyeth ...
  • Mississippi Occupational Health Surveillance Program
    Mississippi Occupational Health Surveillance Program
    Atehortua De la Pena N ;
    Zhang L
    2022/07/29 | Grant Final Reports
    The major goals of the project were to: (1) compile, analyze, and interpret data. (2) identify work-related injury, illness, and exposure trends. (3) develop Mississippi State Department of Health Occupational Health Surveillance Program (MSDH OHS) priorities. (4) develop recommendations, prevention, and outreach activities throughout Mississippi ( ...
  • A Case Study of Potential Geologic Factors Affecting the Occurrence of Massive Ground Collapses at an Underground Limestone Mine in Southwestern Pennsylvania
    A Case Study of Potential Geologic Factors Affecting the Occurrence of Massive Ground Collapses at an Underground Limestone Mine in Southwestern Pennsylvania
    Anderson T ;
    Evanek N
    2022/07/26 | Mining Publications
    Five massive ground collapses have occurred in underground limestone mines in the United States between 2015 to 2021, with two of the collapses occurring at a single mine. Preliminary investigations have been focused on pillar geometry. The effect of the variable strength and thickness of the overlying strata have yet to be analyzed. The strength a ...
    Public Domain
  • Forty Year History of Testing at NIOSHs Mine Roof Simulator What Have We Learned
    Forty Year History of Testing at NIOSH’s Mine Roof Simulator. What Have We Learned?
    Batchler TJ ;
    Matthews TJ
    2022/07/26 | Mining Publications
    The National Institute for Occupational Safety and Health's (NIOSH) Mine Roof Simulator (MRS) at the Pittsburgh Mining Research Division was commissioned for operation in 1981. The MRS was originally designed for longwall shield research and was the only hydraulic press in the world with the capability to apply biaxial loads to these large structur ...
    Public Domain
  • GroundFall Accident Trends in Mining 2010 to 2019
    Ground-Fall Accident Trends in Mining: 2010 to 2019
    Khademian Z ;
    Rashed G
    2022/07/26 | Mining Publications
    Mining has been recognized among the most hazardous industries in the United States, despite the significant reduction in injury and fatality rates over the past century. This study focuses on the ground-fall incidents classified in the Mine Safety and Health Administration (MSHA) database as "fall of roof, back, or brow from in-place" and "fall of ...
    Public Domain
  • Shale Gas Well Casing Deformation in Longwall Chain Pillars Under Deep Cover Field Measurement and Numerical Modeling
    Shale Gas Well Casing Deformation in Longwall Chain Pillars Under Deep Cover – Field Measurement and Numerical Modeling
    Dougherty H ;
    Kim BH
    2022/07/26 | Mining Publications
    The integrity of shale gas wells in longwall chain pillars under the influence of longwall mining is a safety concern for both coal and gas operators. Previous modeling studies of gas wells in longwall pillars have shown that a FLAC3D model can predict longwall-induced stresses and deformations in gas well casings with reasonable accuracy. The pred ...
    Public Domain
  • Respiratory Protection Week 2022
    Respiratory Protection Week 2022
    National Institute for Occupational Safety and Health
    July 26, 2022 | National Institute for Occupational Safety and Health (NIOSH)
    Respiratory protection has always been a key component of personal protective equipment to keep individuals safe from workplace airborne hazards, but over the last few years more people have become aware of just how  important. This year marks our fourth Respiratory Protection Week, but our virtual shout-out for respiratory protection goes back to ...
    Supporting Files Public Domain
  • Longwall Gateroad Stability Analysis Based on Field Monitoring and Bonded Block Modeling Results
    Longwall Gateroad Stability Analysis Based on Field Monitoring and Bonded Block Modeling Results
    Esterhuizen, Gabriel S. ;
    Khademain Z
    2022/07/26 | Mining Publications
    Based on the 2010-2019 Mine Safety and Health Administration (MSHA) accident report database, 91% of reported ground control accident in the US longwall mines were caused by gateroad roof instability. This can be related to the significant changes in loading conditions that gateroads are subject to from the development to the longwall abutment load ...
    Public Domain
  • Analysis of Coal Rib Fracture Depth Using Numerical Modeling and Artificial Neural Network
    Analysis of Coal Rib Fracture Depth Using Numerical Modeling and Artificial Neural Network
    Mohamed K ;
    Xue Y
    2022/07/26 | Mining Publications
    The failure of coal ribs is a major hazard in underground coal mines. Researchers from the National Institute for Occupational Safety and Health (NIOSH) have been working on the development of an engineering-based rib control method. A user-friendly standalone application, called Design of Rib Support (DORS), is being developed to ease the calculat ...
    Public Domain
  • User Friendly Finite Element Design of Shafts and Tunnels
    User Friendly Finite Element Design of Shafts and Tunnels
    Larson, Mark K. ;
    Lawson HE
    2022/07/26 | Mining Publications
    Rational design based on engineering fundamentals is essential for the layout of safe, stable shafts and tunnels. Shafts and tunnels including winzes, raises, adits, and crosscuts are lifelines to the underground and must be secure. The contribution of this paper describes a significant extension in existing software previously developed for five i ...
    Public Domain
  • Evaluation of Seismic Potential in a Longwall Mine with Massive Sandstone Roof Under Deep Overburden An Update
    Evaluation of Seismic Potential in a Longwall Mine with Massive Sandstone Roof Under Deep Overburden: An Update
    Beale J ;
    Khademain Z
    2022/07/26 | Mining Publications
    In 2016, a 3.7-ML magnitude event caused by mining activity occurred at a longwall mine in southwestern Virginia which was recorded by the United States Geological Survey (USGS) and felt by local residents. The event was the largest of its kind since a global mine design change by the operator was instituted in 2008 following three large events in ...
    Public Domain
  • Effects of Surface Topography Strata Dip and Casing Cementing on LongwallInduced Subsurface Deformations and Gas Well Casing Stresses
    Effects of Surface Topography, Strata Dip, and Casing Cementing on Longwall-Induced Subsurface Deformations and Gas Well Casing Stresses
    Dougherty H ;
    Su, Daniel W. H.
    2022/07/26 | Mining Publications
    This paper describes the scientific data acquisition, data interpretation, and sophisticated 3-dimensional modeling processes of an ongoing gas well stability research program by the National Institute for Occupational Safety and Health (NIOSH). Results from the NIOSH field instrumentation programs and the parallel 3-dimensional numerical modeling ...
    Public Domain
  • Influence of Mineralogical Compositions on Anisotropic BurstProne Coal Strength
    Influence of Mineralogical Compositions on Anisotropic Burst-Prone Coal Strength
    Kim BH ;
    Larson, Mark K.
    2022/07/26 | Mining Publications
    This paper was developed as part of an effort by the National Institute for Occupational Safety and Health (NIOSH) to identify risk factors associated with bursts/bumps in the prevention of fatalities and accidents in highly stressed, burst- (or bump-) prone ground conditions. This study focused on a geochemical aspect that contributes to coal bump ...
    Public Domain
  • Feasibility of a Selective Epoxidation Technique for Use in Quantification of Peracetic Acid in Air Samples Collected on Sorbent Tubes
    Feasibility of a Selective Epoxidation Technique for Use in Quantification of Peracetic Acid in Air Samples Collected on Sorbent Tubes
    Baughman, Notashia N. ;
    Ham, Jason E.
    2022/07/25 | National Institute for Occupational Safety and Health (NIOSH)
    Peracetic acid is a disinfection agent used in medical and food processing facilities, and occupational exposures have been documented. To facilitate characterization of daily occupational exposures, the current work describes the development of a personal sampling technique to quantify the peracetic acid concentration in air samples. Peracetic aci ...
    Public Domain
  • Modification and approval of mine rescue support machine Final Report Contract Number 200201794151
    Modification and approval of mine rescue support machine: Final Report Contract Number 200-2017-94151
    National Institute for Occupational Safety and Health
    7/25/2022 | NIOSH Numbered Publications
    Final report of a contract with ROHMAC Inc. on a prototype mine rescue machine developed under a previous contract. This report details the machine design changes and the applications for MSHA approvals, as well as the progress of the approval processes for these applications.
    Public Domain
  • Epidemiologic investigation of two welders anthrax cases caused by Bacillus cereus group bacteria occupational link established by environmental detection
    Epidemiologic investigation of two welder's anthrax cases caused by Bacillus cereus group bacteria: occupational link established by environmental detection.
    Antonini JM ;
    Balsamo GA
    2022/07/23 | National Institute for Occupational Safety and Health (NIOSH)
    Bacillus cereus group bacteria containing the anthrax toxin genes can cause fatal anthrax pneumonia in welders. Two welder's anthrax cases identified in 2020 were investigated to determine the source of each patient's exposure. Environmental sampling was performed at locations where each patient had recent exposure to soil and dust. Samples were te ...
    Public Domain
3641 - 3660 / 82972