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| TITLE |
Investor Frustrations in Analyzing Ore Reserves |
| SUMMARY |
... Page 4. PHWDO UHVY UHF SURMV QHZ SURM FRQWLQXLW\ PHW RSHQ SLW ... DGGLWLRQV GHOHWLRQV DGGLWLRQV GHOHWLRQV 6KRZ WKH UHF PHWDO 6KRZ WKH UHF PHWDO ... |
| AUTHOR |
McConvey, Daniel |
| PUBLISHED |
2003 |
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| TITLE |
Developments In Cable Recycling Technology |
| SUMMARY |
... 675$&7 0L[HGFDEOHZDVWH ZKLFK DPRXQWVWR PRUHWKDQ WS\ LQ *HUPDQ\ LV VXEMHFWHG WR UHF\FOLQJ ,Q PRVW FDVHV FDEOH UHF\FOLQJPHDQVRQO\ UHFRYHULQJFRSSHUDQG ... |
| AUTHOR |
Schoenherr, J. I. ; Baloun, T. A. |
| PUBLISHED |
2002 |
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| TITLE |
Review Of Research On Underground Mining Communications |
| SUMMARY |
... Center, Pittsburgh, Pa. TN 76F333. Manuscript, 1 ) Ultra-high frequency (UHF) radio for fan Aug. 17, 1976. ... UHF-Radio for Fan Hole Drill Operators ... |
| AUTHOR |
Murphy, John N. ; Parkinson, Howard E. |
| PUBLISHED |
1978 |
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| TITLE |
Application Of Time Domain Reflectometry To Mining |
| SUMMARY |
... TDR coaxial cable installation are shown schematically in Figure 2. Prior to installation the cable is crimped at 3 m (10 ft ) intervals and a UHF connector ... |
| AUTHOR |
O’Connor, Kevin M. |
| PUBLISHED |
1984 |
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| TITLE |
VLF Emergency Warning System for Underground Mining |
| SUMMARY |
... Very High frequency (VHF) and Ubhigh frequency (UHF) systems have negligible throughtherock transmission czb pabilities and are limited to line-of-sight ... |
| AUTHOR |
Vanderlaag, J. Herman P. Eng. ; McDougall, J. Scott |
| PUBLISHED |
1995 |
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| TITLE |
Automatic identification in mining |
| SUMMARY |
... Bar- of the future possibilities of using trahigh frequencies (UHF) to micro- code systems have propelled auto ID RFID technology in mining, in- waves at 2.45 ... |
| AUTHOR |
Puckett, D. ; Patrick, C. |
| PUBLISHED |
1999 |
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| TITLE |
Novel fire warning system for underground mines |
| SUMMARY |
... Ultrahigh frequency (UHF) systems, because of their negligible through-the-rock transmission capabilities, are limited to line-of-sight applications. ... |
| AUTHOR |
Hjelmstad, K. E. ; Pomroy, W. H. |
| PUBLISHED |
1991 |
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