In every tunnel boring machine (TBM) tunneling project, there is an initial low production phase so-called the Learning Phase Period (LPP), in which low utilization is experienced and the operational parameters are adjusted to match the working conditions. LPP can be crucial in scheduling and evaluating the final project time and cost, especially for short tunnels for which it may constitute a ...

In this note we study several conditions to be imposed on a mirror symmetry candidate to the generic multiquasihomogeneous Calabi-Yau variety defined in the product of the quasihomogeneous projective spaces. We propose several properties for a Calabi-Yau complete intersection variety so that its period integrals can be expressed by means of quasihomogeneous weights of its mirror symmetry candid...

complete and non-defecting delivery of construction is one of the important obligations of construction contracts. however, unlike in most of the consuming products, the troubleshooting of construction needs passages of time, since hidden defects appear through time and usages of consumer. although after the delivery of construction the claim of consumer is not admissible, in hidden defects it ...