Results 1 to 10 of about 85,851 (136)

The Optimization of Waterproof and Drainage Design and an Evaluation of the Structural Safety of Tunnels in Weak Watery Strata

Buildings, 2023
The surrounding rock and high water pressure in weak watery strata have adverse effects on the mechanical properties of tunnel support structures.
Zelin Zhou, Xingyu Zhu, Chuantian Zheng, Zhiqiang Zhang, Heng Zhang   +4 more
doaj   +1 more source

Estimating Penetration Rate of Excavation Machine Using Geotechnical Parameters and Neural Networks in Tabriz Metro [PDF]

Analytical and Numerical Methods in Mining Engineering, 2023
In this study, the penetration rate of the excavation machine in Tabriz Metro Line 2 using geotechnical parameters and neural networks is estimated. For this purpose, through comprehensive analysis, including borehole drilling, field and laboratory tests,
Samaneh Khodaee Ashestani, Hamid Chakeri, Mohammad Darbor, Erfan Khoshzaher, Seyyed Shahab Eddin Bazargan   +4 more
doaj   +1 more source

Elastic Behavior of Transversely Isotropic Cylindrical Rock Samples under Uniaxial Compression Considering Ideal and Frictional Boundary Conditions

Applied Sciences, 2023
Conceptualizing sophisticated measurement set-ups as well as testing and evaluation procedures for laboratory experiments on anisotropic rocks requires a basic understanding of the potential specimen behavior.
Manuel Bernhard Winkler, Thomas Frühwirt, Thomas Marcher   +2 more
doaj   +1 more source

The hydrogen bond rotation of confined water affected by quantum resonance tunnelling

Frontiers in Physics, 2022
In this work, we report quantum tunnelling effects on the confined water chain flipping, different from the spatial size and even electronic correlation effects of the confinement environment.
Xinrui Yang, Le Jin, Le Jin, Yu Zhu, Zhiyuan Zhang, Rui Liu, Zhigang Wang, Zhigang Wang   +7 more
doaj   +1 more source

Unified time analysis of photon and (nonrelativistic) particle Tunnelling, and the Superluminal group-velocity problem [PDF]

, 2001
A unified approach to the time analysis of tunnelling of nonrelativistic particles is presented, in which Time is regarded as a quantum-mechanical observable, canonically conjugated to Energy.
Aharonov, Aharonov, Allcock, Azbel’, Baldo, Baz’, Baz’, Binder, Blaauboer, Blanchard, Bohm, Brillouin, Brodowsky, Bush, Büttiker, Büttiker, Büttiker, Büttiker, Büttiker, Cardone, Cardone, Chen, Chiao, Chiao, Chiao, Chu, Chu, Collins, Condon, Crisp, Delgado, Delgado, Deutch, Dumont, Egusquiza, Enders, Enders, Enders, Enders, Enders, Enders, Engelman, Engelman, Engelman, Erasmo Recami, Esaki, Esposito, Esposito, Esteve, Fertig, Fertig, Fong, Fox, Froissart, Fujiwara, Fujiwara, Gamow, Garret, Gaveau, Giaver, Gien, Gien, Goldberger, Goldberger, Gotò, Gotò, Grot, Guéret, Guéret, Hartman, Hass, Hauge, Hauge, Heitmann, Holevo, Holevo, Huang, Huang, Hupert, Iannacone, Jacek Jakiel, Jakiel, Japha, Jauch, Jauho, Jauho, Jaworski, Jonson, Kobe, Kochański, Krekora, Krekora, Landauer, Landauer, Landauer, Leavens, Leavens, Leavens, Leavens, Leavens, Leavens, Leavens, Leavens, Lee, Lee, Leòn, León, Lippmann, Longhi, Longhi, Lucas, MacColl, Maidanyuk, Martin, Mignani, Milonni, Mitchell, Morse, Muga, Muga, Muga, Mugnai, Mugnai, Mugnai, Mugnai, Naimark, Nguen, Nimtz, Nimtz, Nimtz, Nimtz, Nimtz, Nimtz, Ohmura, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Olkhovsky, Paul, Pereyra, Petrillo, Petrillo, Pimpale, Pollak, Pollak, Previtera, Ranfagni, Ranfagni, Ranfagni, Ranfagni, Ranfagni, Ranfagni, Razavy, Recami, Recami, Recami, Recami, Recami, Recami, Recami, Rosenbaum, Rybachenko, Schweber, Segard, Shaarawi, Shaarawi, Shaarawi, Smith, Smith, Sokolovski, Sokolovski, Sokolovski, Sommerfeld, Sommerfeld, Spielman, Steinberg, Steinberg, Tsuchiya, V.B. Berestezki, Vedrinski, Vladislav S. Olkhovsky, Wigner, Zamboni Rached, Zamboni Rached, Ziolkowski   +191 more
core   +3 more sources

Statistical approach to the process of tunnel ionisation of impurity centres near the heterointerface

Конденсированные среды и межфазные границы, 2021
To date, the processes of tunnel ionisation of impurities near the interface between two different semiconductors have been comprehensively studied. The most important parameters of the contact electron states of impurities have been determined. However,
Temur T. Muratov
doaj   +1 more source

Light-emitting current of electrically driven single-photon sources [PDF]

, 2006
The time-dependent tunnelling current arising from the electron-hole recombination of exciton state is theoretically studied using the nonequilibrium Green's function technique and the Anderson model with two energy levels.
David M.-T. Kuo, H. Haug, H. Haug
core   +1 more source

A More Comprehensive Way to Analyze Foam Stability for EPB Tunnelling—Introduction of a Mathematical Characterization

Geosciences, 2022
In the tunnelling industry, a large share of the market is occupied by EPB (Earth Pressure Balance) machines. To operate this kind of machine, a radical change in the rheological behaviour of the excavated soil must be performed, and this is achieved by ...
Andrea Carigi, Carmine Todaro, Daniele Martinelli, Daniele Peila   +3 more
doaj   +1 more source

Influence of classical resonances on chaotic tunnelling [PDF]

, 2006
Dynamical tunnelling between symmetry-related stable modes is studied in the periodically driven pendulum. We present strong evidence that the tunnelling process is governed by nonlinear resonances that manifest within the regular phase-space islands on ...
A. J. Lichtenberg, Amaury Mouchet, Christopher Eltschka, L. D. Landau, M. J. Davis, O. Bohigas, P. Schlagheck, Peter Schlagheck   +7 more
core   +4 more sources

Reliability analysis of ground movement in tunnelling in spatially variable soil using equivalent parameters

Frontiers in Earth Science, 2022
The evaluation of the ground movement induced by tunnelling is of vital importance for the tunnel construction and the safety of the adjacent facilities.
Wenyu Yang, Hui Liu, Junjie Zheng, Junjie Zheng, Lan Cui, Lan Cui   +5 more
doaj   +1 more source