Results 51 to 60 of about 10,206 (280)

Assessing the Impact of Sand-Induced Ballast Fouling on Track Stiffness and Settlement

Geotechnics
This study investigates the impact of sand-induced ballast fouling on railway track performance, focusing on track stiffness (modulus), settlement, and overall degradation.
Mohammed A. Alzhrani, Joseph W. Palese, Allan M. Zarembski    +2 more
doaj   +1 more source

A study of the deformation of anti-slide pile and pile-plate structure in large landslide

Shuiwen dizhi gongcheng dizhi, 2021
When the ballastless track subgrade is constructed in complex and dangerous mountainous areas, it is difficult to solve the potential slip constraint of landslides and settlement control of subgrade by using the existing conventional anti-slide piles or ...
Lirong XIANG, Weizhi CHEN, Zaixu GUO, Dan YE, Lei JIANG   +4 more
doaj   +1 more source

Prediction of slab track settlement using an innovative 3D train-track numerical tool: Full-Scale laboratory validation [PDF]

, 2023
The growth of slab track construction in recent years is mainly due to its high stability performance and low deterioration rates when subjected to high-demand railway traffic.
Matias, Samuel R., Sainz-Aja, José A., Pombo, João, Samuel R. Matias, João Pombo, Ferreira, Patrícia A., Sainz-Aja Guerra, José Adolfo, Patrícia A. Ferreira, José A. Sainz-Aja   +8 more
core   +1 more source

Integrated Field‐Free SOT Domain‐Wall Synapses and MTJ Stochastic Neurons for Hardware Boltzmann Machines

Advanced Functional Materials, EarlyView.
Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone, Meng Tang, Camelia Florica, Bin He, Jingkai Xu, Selma Amara, Georgian Melinte, Xixiang Zhang, Gianluca Setti   +8 more
wiley   +1 more source

Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs

Advanced Functional Materials, EarlyView.
Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric, Gohar Soufi, Ziqiao Li, Erick Chica, Amran Abdirasheed Ali Jinow, Nada Al‐Roubaï, Noor Ahmed, Yaman Göksel, Anja Boisen   +8 more
wiley   +1 more source

Measurement on Dynamic Behaviour of Track near Rail Joints and Prediction of Track Settlement

Quarterly Report of RTRI, 2005
We measured factors relating to track dynamic behaviour, such as dynamic wheel loads and rail seat forces near a rail joint induced by running vehicles. We also proposed a track dynamic model to consider the excitation by wheels passing over discontinuous fish plate rail joints.
SUZUKI, Takahiro, ISHIDA, Makoto, ABE, Kazuhisa, KORO, Kazuhiro   +3 more
openaire   +2 more sources

Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis

Advanced Functional Materials, EarlyView.
Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito, Ludovico Guercio, Giuseppe Cavallaro, Giuseppe Lazzara, Theodore Hueckel, Lorenzo Lisuzzo, Stefano Sacanna   +6 more
wiley   +1 more source

Non-linear influences of track dynamic irregularities on vertical levelling loss of heavy-haul railway track geometry under cyclic loadings

Nonlinear Engineering
With an emphasis on the combined degradation of railway track geometry and components, a new numerical-analytical method is proposed for predicting the track geometrical vertical levelling loss (VLL).
de Melo Andre Luis Oliveira, Kaewunruen Sakdirat, Li Ting, Goto Keiichi   +3 more
doaj   +1 more source

The Progress Mechanism of Track Geometrical Irregularity Focusing on Hanging Sleepers [PDF]

International Journal of Railway Research, 2015
This topic is very traditional and basically has been concerned for a long time. A lot of sophisticated vehicle/track interaction model and track dynamic deterioration model have been developed so far.
Makoto Ishida
doaj  

Review of Thermally Activated Twisted Coiled Polymer Actuators: A Materials Science Perspective

Advanced Functional Materials, EarlyView.
Thermally activated twisted and coiled polymer actuators (TCPAs) combine lightweight design, large deformation, and scalable fabrication for soft robotic and wearable applications. This review connects polymer structure, processing history, helix geometry, and thermomechanical characterization to actuator performance, highlighting current challenges in
Nadja Schenk, Lukas Benecke, Chokri Cherif, Johannes Mersch   +3 more
wiley   +1 more source