Kenneth E. Hjelmstad
Identifiers
- Open LibraryOL717617A
Top Subjects
- Fire alarms (2)
- Clay (1)
- Stabilizing agents (1)
- Solution mining (1)
- Ores -- Permeability (1)
- ELF electromagnetic fields (1)
- Mines fires -- Prevention and control (1)
Books by Kenneth E. Hjelmstad
Total count: 3
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Effect of clay stabilizers on permeability of clayey oreU.S. Dept. of the Interior, Bureau of Mines1984-01-01
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Ultra low frequency electromagnetic fire alarm system for underground minesU.S. Dept. of the Interior, Bureau of Mines1991-01-01
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Effect of ultralow frequency signaling on blasting array currentU.S. Dept. of the Interior, Bureau of Mines1993-01-01