Effect of ultralow frequency signaling on blasting array current /
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| Institutionell upphovsman: | |
|---|---|
| Övriga upphovsmän: | |
| Materialtyp: | Bok |
| Språk: | engelska |
| Publicerad: |
Avondale, Md. :
U.S. Dept. of the Interior, Bureau of Mines,
1993.
|
| Serie: | Report of investigations ;
9479 Report of investigations (United States. Bureau of Mines) ; 9479 |
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| 003 | PWmBRO | ||
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| 008 | 940905s1993 mdu b f00010 eng | ||
| 110 | 2 | 0 | |a United States. |b Bureau of Mines. |
| 245 | 1 | 0 | |a Effect of ultralow frequency signaling on blasting array current / |c by Kenneth E. Hjelmstad and Russell E. Griffin. |
| 260 | 0 | |a Avondale, Md. : |b U.S. Dept. of the Interior, Bureau of Mines, |c 1993. | |
| 300 | |a 7 p. | ||
| 440 | 1 | |a Report of investigations ; |v 9479 | |
| 650 | 0 | |a Mines and mineral resources. | |
| 650 | 0 | |a Electric detonators |x Safety measures. | |
| 650 | 0 | |a Electromagnetic waves |x Transmission. | |
| 650 | 0 | |a Fire alarms. | |
| 700 | 1 | 0 | |a Hjelmstad, Kenneth E. |
| 830 | 0 | |a Report of investigations (United States. Bureau of Mines) ; |v 9479 | |
| 942 | |2 ddc | ||
| 999 | |c 80467 |d 80467 | ||
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