Results 21 to 30 of about 770,468 (299)

Numerical Simulation of Nanosilica Sol Grouting for Deep Tunnels Based on the Multifield Coupling Mechanism

open access: yesGeofluids, 2021
Grouting is an effective technical way for the construction of deep tunnels in unfavorable geological conditions. The fluid-solid-chemical coupling mechanism of grouting process is analyzed from the following three aspects: influence of physical ...
Dongjiang Pan   +7 more
doaj   +1 more source

Deduction of temperature fluctuations in transient compression wind tunnels using incompressible turbulent flow data [PDF]

open access: yes, 2009
Wind tunnels and other aero-thermal experimental facilities are likely to make a contribution to the optimisation of energy and propulsion systems for the foreseeable future.
Buttsworth, D. R., Widodo, A.
core   +2 more sources

TUNNEL VENTILATION MODELLING IN SLOPED TUNNELS

open access: yesChemical Engineering Transactions, 2009
Not available.
PALAZZI, EMILIO   +3 more
openaire   +2 more sources

Investigation on Seismic Response of Long-Span Special Steel Truss Cable-Stayed Bridge

open access: yesAdvances in Civil Engineering, 2022
Due to the small self-weight of the steel truss cable-stayed bridge with a single tower and a single cable plane, the torsional stiffness and wind stability of the structure are reduced. The arrangement of the deck type makes the mechanical properties of
Yong Zeng, Xueqin Li, Yutong Zeng
doaj   +1 more source

Tunnel magnetoresistance in alumina, magnesia and composite tunnel barrier magnetic tunnel junctions

open access: yes, 2010
Using magnetron sputtering, we have prepared Co-Fe-B/tunnel barrier/Co-Fe-B magnetic tunnel junctions with tunnel barriers consisting of alumina, magnesia, and magnesia-alumina bilayer systems. The highest tunnel magnetoresistance ratios we found were 73%
Auge, Alexander   +7 more
core   +1 more source

Dynamic response of a double-deck circular tunnel embedded in a full-space [PDF]

open access: yes, 2016
© 2016. This version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/A three-dimensional dynamic model for calculating the ground-borne vibrations generated by harmonic loads applied on the interior ...
Arcos Villamarín, Robert   +3 more
core   +2 more sources

Recognition tunneling [PDF]

open access: yesNanotechnology, 2010
Single molecules in a tunnel junction can now be interrogated reliably using chemically functionalized electrodes. Monitoring stochastic bonding fluctuations between a ligand bound to one electrode and its target bound to a second electrode ('tethered molecule-pair' configuration) gives insight into the nature of the intermolecular bonding at a single ...
Stuart, Lindsay   +7 more
openaire   +2 more sources

Risk Assessment System Based on Fuzzy Composite Evaluation and a Backpropagation Neural Network for a Shield Tunnel Crossing under a River

open access: yesAdvances in Civil Engineering, 2020
Constructing a shield tunnel that crosses under a river poses considerable safety risks, and risk assessment is essential for guaranteeing the safety of tunnel construction. This paper studies a risk assessment system for a shield tunnel crossing under a
Xiao Liang   +4 more
doaj   +1 more source

Performance analysis of AlGaAs/GaAs tunnel junctions for ultra-high concentration photovoltaics [PDF]

open access: yes, 2012
An n(++)-GaAs/p(++)-AlGaAs tunnel junction with a peak current density of 10 100Acm(-2) is developed. This device is a tunnel junction for multijunction solar cells, grown lattice-matched on standard GaAs or Ge substrates, with the highest peak current ...
  +13 more
core   +2 more sources

Classical tunneling

open access: yesInternational Journal of Theoretical Physics, 1990
12 pages, 2 ...
Cohn, Arthur, Rabinowitz, Mario
openaire   +2 more sources

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