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The case study of closely spaced twin tunnels excavated vertically beneath the adjacent Chaoyangmen station in Beijing, China is introduced. The existing subway station is part of the Beijing subway Line 2. The new recta...

For Fe-В and Fe-В-С system alloys one of the structure constituent is iron boride Fe<sub>2</sub>B but in the literature there is no information on carbon solubility limit in iron boride Fe2В. The object ...

The Wilcoxon rank sum nonparametric statistical test is introduced to establish an evaluation model for identifying structural domain boundaries in jointed rock masses. A new method for identifying structural domain boun...

In the present study we have proposed a theoretical model based on Kopelman, Brief & Guzzo's model (1990), in which transformational leadership is positioned as an antecedent of organizational climate, and the psychologi...

3D printing is used to produce different permeability structural surfaces, and rock-like samples are poured by moulds. The tests on permeability of rock-like samples with consecutive and filling fractures are carried out...