- Body parts
- Diseases and injuries
- Equipment, tools, and parts
- Geologic conditions and events
- Hazard prevention and control
- Hazards and exposures
- Mine locations, excavations, and structures
- Mining types and methods
- Population groups
- Products and materials
- Research disciplines
- Research methods and measures
- Tasks and activities
- Document types
Results 81 - 86 of 86
Study of Mine Fires and Mine Ventilation: Part I, Computer Simulation of Ventilation Systems Under the Influence of Mine FiresAn existing computer program for mine ventilation network is modified so that it can simulate ventilation conditions under the influence of mine fires. The resulting new program is designed for the practical ventilation engineer and should be applicable...
1/1/1975 - Reports of InvestigationsThis report reviews experimental evidence indicating a relative permeability effect that causes the flow of methane to increase with time when a coalbed is degassed by boreholes.
Research and Development Contract for Coal Mine Communication System: Volume 3 - Theoretical Data Base11/1/1974 - Contract reportsEight coal mines were visited to determine their communications usage and requirements. Available equipment was surveyed and evaluated to determine its applicability to the needs of the mines. Volume 3 contains all information used in predicting the per...
3/1/2007 - Information CircularsThis guide covers the theoretical basis, application, and operation of three computer programs: Bplane, Bstepp, and Bwedge. These programs can be used to evaluate potential plane shear, step-path, and wedge failures along the crest of a slope bench.
8/1/1995 - Unpublished documents and reportsMFIRE is a computer simulation program that performs normal ventilation network planning calculations, and dynamic transient state simulation of ventilation networks under a variety of conditions. This user manual describes the development of MFIRE, the...
Specialized Fortran Computer Programming and Analysis Services to Upgrade Capability of MFIRE Program12/1/1994 - Contract reportsThis report is a summary of the work accomplished during the performance of the project titled "Specialized Fortran Computer Programming and Analysis Services to Upgrade Capability of MFIRE Program". This project investigated and corrected algorithm con...