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Apparent earth conductivity over coal mines as estimated from through-the-earth electromagnetic transmission tests [[electronic resource] /] / by John Durkin
| Apparent earth conductivity over coal mines as estimated from through-the-earth electromagnetic transmission tests [[electronic resource] /] / by John Durkin |
| Autore | Durkin John |
| Pubbl/distr/stampa | [Washington, D.C.?] : , : U.S. Dept. of the Interior, Bureau of Mines, , [1984] |
| Descrizione fisica | 18 pages : digital, PDF file |
| Collana | Report of investigations |
| Soggetto topico |
Earth resistance (Geophysics) - Measurement
Electromagnetic waves - Transmission - Measurement |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910696728803321 |
Durkin John
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| [Washington, D.C.?] : , : U.S. Dept. of the Interior, Bureau of Mines, , [1984] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Evaluation of the seismic system for locating trapped miners [[electronic resource] /] / by John Durkin and Roy J. Greenfield
| Evaluation of the seismic system for locating trapped miners [[electronic resource] /] / by John Durkin and Roy J. Greenfield |
| Autore | Durkin John |
| Pubbl/distr/stampa | [Washington, D.C..?] : , : U.S. Dept. of the Interior, Bureau of Mines, , [1981] |
| Descrizione fisica | iii, 55 pages : digital, PDF file |
| Altri autori (Persone) | GreenfieldRoy |
| Collana | Report of investigations |
| Soggetto topico |
Seismometers
Mine rescue work - Equipment and supplies |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910696727703321 |
|
Durkin John
|
||
| [Washington, D.C..?] : , : U.S. Dept. of the Interior, Bureau of Mines, , [1981] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Vertical magnetic noise in the voice frequency band within and above coal mines [[electronic resource] /] / by John Durkin
| Vertical magnetic noise in the voice frequency band within and above coal mines [[electronic resource] /] / by John Durkin |
| Autore | Durkin John |
| Pubbl/distr/stampa | [Washington, D.C.] : , : U.S. Dept. of the Interior, Bureau of Mines, , [1983] |
| Descrizione fisica | 27 pages : digital, PDF file |
| Collana | Report of investigations |
| Soggetto topico | Coal mines and mining - Communication systems |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910696728403321 |
|
Durkin John
|
||
| [Washington, D.C.] : , : U.S. Dept. of the Interior, Bureau of Mines, , [1983] | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||