This is followed by critical descriptions of the various under ground appliances, such as rock-drilling machines, the methods of blasting, haulage, etc. The great develop ment of tunnels during ...

High-pressure electron tunneling spectroscopy reveals the presence of a superconducting gap in H₃S and D₃S. Superconductors ...

SSH tunneling, or SSH port forwarding, is a method of transporting arbitrary data over an encrypted SSH connection. SSH tunnels allow connections made to a local port (that is, to a port on your own ...

In view of the problems existing in traditional tunnel clearance inspection methods, such as low density, slow speed and a lot of manual operations, this paper proposes a tunnel clearance ...