Results 81 to 90 of about 67,564 (151)
Alternative derivation of the Feigel effect and call for its experimental verification
A recent theory by Feigel [Phys. Rev. Lett. {\bf 92}, 020404 (2004)] predicts the finite transfer of momentum from the quantum vacuum to a fluid placed in strong perpendicular electric and magnetic fields.
Casimir H. B. G. +4 more
core +1 more source
Slab tracks in the context of railway track reconstruction
U radu se ukazuje na specifičnost projekta rekonstrukcije u odnosu na projekat nove pruge. Definiše se osnovna hijerarhijska šema za donošenje odluke o rekonstrukciji i obavezne faze izrade projektne dokumentacije. Posebno se obrazlažu specifični zahtevi rekonstrukcije gornjeg stroja.
Popović, Zdenka, Ilić, Čedomir
openaire +1 more source
To address the adverse effects of Tuned Inertia Dampers (TIDs) on track slab vibrations while controlling high-frequency rail vibrations, a hybrid Finite Element-Statistical Energy Analysis (FE-SEA) method is developed for modeling the vehicle-track ...
Xingxing Hu +3 more
doaj +1 more source
By means of mesoscopic numerical simulations of a model soft-glassy material, we investigate the role of boundary roughness on the flow behaviour of the material, probing the bulk/wall and global/local rheologies.
Bernaschi, Massimo +3 more
core +1 more source
Shape of the ocean surface and implications for the Earth's interior: GEOS-3 results [PDF]
A new set of 1 deg x 1 deg mean free air anomalies was used to construct a gravimetric geoid by Stokes' formula for the Indian Ocean. Utilizing such 1 deg x 1 deg geoid comparisons were made with GEOS-3 radar altimeter estimates of geoid height.
Bodine, J. H. +3 more
core +1 more source
Geodetic, teleseismic, and strong motion constraints on slip from recent southern Peru subduction zone earthquakes [PDF]
We use seismic and geodetic data both jointly and separately to constrain coseismic slip from the 12 November 1996 M_w 7.7 and 23 June 2001 M_w 8.5 southern Peru subduction zone earthquakes, as well as two large aftershocks following the 2001 earthquake ...
Boroschek, R. +7 more
core +1 more source
Great Lakes all-weather ice information system [PDF]
A system is described which utilizes an X-band Side-Looking-Airborne-Radar (SLAR) for determining type, location, and aerial distribution of the ice cover in the Great Lakes and an airborne, S-band, short pulse radar for obtaining ice thickness. The SLAR
Cooper, D. W. +7 more
core +1 more source
In some slab tracks in cold regions, freeze-thaw cycle causes frost damage to the slab track filling layer. To evaluate this phenomenon, we proposed a weakly coupled analysis method of heat balance calculation on the slab track surface and heat ...
Fumihiro URAKAWA +3 more
doaj +1 more source
CONCRETE PROPERTIES IMPROVEMENT OF SLAB TRACKS USING CHEMICAL ADDITIVES
Purpose. On the Railways of Ukraine a very large number of slab tracks are operated with cracks. Many scientific works of previous years are dedicated to improving the design of slab tracks. The main causes of defects are: poor exploitation of the track; insufficient physic-mechanical characteristics of concrete; poor quality of initial materials.
openaire +5 more sources
The influence of cosine-shaped subgrade settlement (CSSS) at different positions on the structure of unit slab ballastless track (USBT) of high-speed railway (HSR) is studied in this paper.
Jing Tan +5 more
doaj +1 more source

