Modify Selection
- Document types:
- Conference papers
Home Links
Results 621 - 630 of 646
-
2/1/1992 - Conference papersU.S. Bureau of Mines research is studying ways to more effectively ventilate extended cuts. Two face ventilation techniques that utilize either blowing brattice or a jet fan for deep cutting are examined in this paper.
-
8/1/1990 - Conference papersThis paper describes research designed to quantify the behavior of a particular size abutment pillar prone to burst or bump (local terminology). This research has attempted to construct the stress and convergence profiles of the pillar.
-
7/1/1990 - Conference papersAn ideal fire warning alarm system for underground mines would be low cost, convenient, fast, reliable, and able to warn all underground workers. The U.S. Bureau of Mine devised a one way communication system employs a large loop antenna and transmitter...
-
7/1/1990 - Conference papersThis paper details the computer hardware and software integrated to provide computer-assisted control and monitoring of four different coal mining machines. The backbone of each system is a U.S. Bureau of Mines integrated distributed microcomputer contr...
-
1/1/1990 - Conference papersThis U.S. Bureau of Mines paper discusses the importance of an interface slip mechanism between the coalbed and the surrounding strata in controlling the extent and pattern of stresses and deformations in a coal pillar.
-
10/1/1988 - Conference papersEight men participated in a pilot study to evaluate the effects of shock and whole-body vibration (WBV) on heart rate (HR), blood pressure (BP), and subjective discomfort.
-
7/1/1986 - Conference papersThis report summarizes work sponsored by the Bureau of Mines in the development of a remote operating system (ROS) for controlling a thin-seam continuous miner (TSCM) 500 feet or more distant from the extraction face.
-
7/1/1986 - Conference papersThis paper describes Bureau of Mines research and development of a new and innovative mine lighting system based on fiber optics technology.
-
7/1/1986 - Conference papersThe Deserado mine monitoring and control system is a complex system designed to monitor environmental parameters and electrical power, and to operate all types of equipment used in mines, including the entire haulage system.
-
1/1/1984 - Conference papersTheoretical and experimental research sponsored by the U.S. Bureau of Mines shows that medium frequency (MF) electromagnetic (EM) signals propagate great distances in an underground environment such as a tunnel or mine. This propagation is enhanced by d...
Home Links
Content source: National Institute for Occupational Safety and Health, Mining Program