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Showing 1 to 1 of 1 for “"uGPS"”.
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Towards Estimating Friction Factors of Mine Drifts from Low Density Point Clouds
The standard for estimating roughness for the purposes of underground mine ventilation planning is to choose values found in a variety of textbooks that attempt to match the excavation type. These values are then used in the Atkinson equation made popular in 1935 by McElroy to determine pressure …