But Barrick has other advantages, including more efficient mines, with total production costs averaging $215 an ounce in the third quarter, compared with $241 for Newmont.
The irony is that recycling is often far more efficient than mining.
This integration will allow more efficient data mining and facilitate decision-making regarding hit identification, lead optimization and drug development.
Efficient drainage of gas reduces the gas concentration and amount at the working face, which can effectively prevent gas explosions and eliminate coal and gas outbursts, thereby promoting safer and more efficient coal mining (Fields 1973; Garcia and Cervik 1985; Hargraves and Martin 1993; Creedy et al. 2001; Cheng et al. 2004, 2006).
There is less and less land available for open-pit mining, deemed more "efficient" than underground mines by the World Bank.
As more miners join the network (or contribute more efficient hardware towards mining), more computing power goes towards solving the math problem, and the math problem is solved more quickly.
A more efficient method, which mines ({mathcal A}{mathcal R}{mathcal S}(mathrm{s}_{0},mathrm{c}_{0} )), is based on a lattice ({mathcal L}{mathcal C}) of frequent closed itemsets [7, 32, 36, 37, 41].
Peercoin has no money-supply limit, built-in inflation of 1% and a more energy-efficient mining process, though, as with Bitcoin, its creator is unknown.
In fact, its design strives to prevent a computational arms-race among miners by reducing the benefits associated with specialised mining hardware; Peercoin is designed to allow more energy-efficient mining.
