Results 61 to 70 of about 205,985 (308)
Digital documentation of railway tunnel inspection in Austria
Civil Engineering Design, Volume 7, Issue 1, Page 3-8, March 2025.Abstract Infrastructure, especially railway tunnels, require continuous inspection to ensure their safety. Furthermore, the detection of damages at an early stage can improve their service life. These tasks represent a major challenge for those involved and the tunnel down time is a disruption in operation.
Matthias J. Rebhan +4 more
wiley +1 more source
On the feasibility of Bluetooth, Zigbee and IEEE 802.15.4 technologies on board high speed trains [PDF]
, 2011 This paper studies the feasibility of using low-power wireless technologies such as Bluetooth, IEEE 802.15.4 and ZigBee in high-speed railway scenarios that involve bidirectional land-to-train communication.
Alonso Zárate, Luis Gonzaga +3 more
core
Investigating the Cytoskeleton of DRGs Using Cryo‐Electron Microscopy and Deep Learning
Cytoskeleton, EarlyView.ABSTRACT We describe a method for determining the ultrastructural organization of axons and varicosities of cultured dorsal root ganglion (DRG) neurons using cryogenic electron microscopy (cryo‐EM). Cryo‐EM reveals the dimensions, proximity, and overall organization of biological specimens in a near‐native state, avoiding artifacts of fixation and ...
M. Neal Waxham +3 more
wiley +1 more source
Shock and Vibration, 2015 This paper describes tests on a transition section between ballasted and ballastless tracks in the Liupanshui-Zhanyi railway in China. The originally unsettled transition zone is exposed to sudden car shaking and a series of track transition problems ...
Caiyou Zhao +3 more
doaj +1 more source
A Numerical Model of Vapour Transfer and Phase Change in Unsaturated Freezing Soils
Advances in Civil Engineering, 2020 In recent studies, vapour transfer is reported to lead to remarkable frost heave in unsaturated soils, but how to better model this process has not been answered. In order to avoid the great uncertainty caused by the phase change term of vapour-water-ice
Sihao Liang +3 more
doaj +1 more source
High speed rail transport valuation [PDF]
, 2008 The present paper investigates the optimal timing of investment for a high speed rail (HSR) project, in an uncertain environment, using a real options analysis (ROA) framework.
Azevedo-Pereira, José +2 more
core
An Estimation of the Heat Load Distribution on the Divertor Target Using the CSD Model
Contributions to Plasma Physics, EarlyView.ABSTRACT Handling the heat load on the divertor target is a critical issue in the design of fusion reactors. Estimating the heat load, supported by computationally efficient simulations with varying design parameters, provides valuable input to high‐level design discussions and the development of design guidelines.
Kazuhiro Yamada +4 more
wiley +1 more source
Reducing Railway Noise with Porous Sound-Absorbing Concrete Slabs
Advances in Materials Science and Engineering, 2014 The effect of porous sound-absorbing concrete slabs on railway noise reduction is examined in this paper. First, the acoustical absorption coefficients of porous concrete materials with various aggregate types, gradations, fibre contents, and compaction ...
Caiyou Zhao, Ping Wang, Li Wang, Dan Liu
doaj +1 more source
, 2016 To attain seamless handover and reduce the han- dover failure probability for high-speed railway (HSR) com- munication systems, this paper proposes a remote antenna unit (RAU) selection assisted handover scheme where two antennas are installed on high ...
Fan, Pingyi +4 more
core +1 more source
Creep properties and constitutive model of diabase in deep water conveyance tunnels
Deep Underground Science and Engineering, EarlyView.The axial and lateral creep characteristics of diabase were analyzed based on compression creep tests. The nonlinear viscoelastic‐plastic model capable of describing the whole creep process was established based on the fractional derivative and damage theories.
Zhigang Tao +5 more
wiley +1 more source