Results 51 to 60 of about 687,643 (290)

The Influence of Cracks in Track Slab and its Reflection in Structure Design

, 2011
The loads and load combination in ballastless track design was briefly introduced. The influence of cracks to the track slab flexural stiffness was studied.
Ping Rui Zhao
core   +1 more source

Helicity‐Defined Analog Conductance States in Chiral Perovskite Synapses

Advanced Materials, EarlyView.
Chiral perovskite synapses convert the handedness of circularly polarized light into persistent analog memory during electrical programming. An optimized n = 3 structure combines strong helicity selectivity with low read noise, enabling 72 distinct conductance levels.
Min Jong Lee, Hyoungwook Cho, Sang Heon Lee, Ohhyun Kwon, Minil Kang, Dong Gyu Lee, Seongwon Lee, Tae Kyung Lee, Gyeong Min Lee, Minseong Um, Sung Su Yoon, Gayoung Ham, Hyojung Cha, Hyungju Ahn, SungWoo Nam, Hyung‐Min Lee, Jae Won Shim   +16 more
wiley   +1 more source

In‐House Manufacturing of 3D ECM Culture Chips via Vacuum Thermoforming for Enhanced Imaging Applications

Advanced Materials Technologies, EarlyView.
Desktop vacuum thermoforming enables rapid, low‐cost fabrication of 96‐channel polystyrene culture chips with very thin imaging interfaces. The resulting platform supports cell lines, primary cells, and patient‐derived organoids, and enables high‐resolution confocal microscopy and single‐cell visualization, providing an accessible approach for advanced
Aleksandra Fomina, Adam Tam, Jennifer Lam, Nila C. Wu, Nancy T. Li, Alison P. McGuigan   +5 more
wiley   +1 more source

Low‐Outgassing Liquid Metal–Silicone Composites for Multifunctional Space Applications

Advanced Materials Technologies, EarlyView.
Integrating liquid metal microdroplets into a space‐grade silicone creates a multifunctional composite while preserving its inherent flexibility and low‐outgassing behavior. The composite has 11×$\times$ higher thermal conductivity while remaining thermally stable and maintaining a total mass loss of ≤$\le$ 1% under thermal vacuum testing.
Spencer Pak, Matthew R. Jamison, Cadré J. Francis, Ravi Tutika, Stephen A. Morin, Eric J. Markvicka   +5 more
wiley   +1 more source

Slab track systems

, 2011
Konstrukcije koloseka na čvrstoj podlozi primenjuju se vise od stotinu godina, najpre u metroima i tunelima, a danas kao standardno rešenje u urbanom okruženju i kao jedno od rešenja na prugama za velike brzine. U upotrebi su sledeći sistemi konstrukcija koloseka na čvrstoj podlozi: monolitni sistemi sa pragovima na betonskoj ploči sa diskretnim ...
openaire   +2 more sources

Crack Detection of Track Slab Based on RSG-YOLO

IEEE Access, 2023
The surface cracks on high-speed railway ballastless track slabs directly influence their lifespan, while the efficiency of damage detection and maintenance is crucial for ensuring operational safety. Leveraging deep learning image processing technology can significantly enhance detection efficiency. Therefore, in response to the specific attributes of
Tangbo Bai, Baile Lv, Ying Wang, Jialin Gao, Jian Wang   +4 more
openaire   +3 more sources

Pointlike Material Accumulation and Displacement in Azopolymer Thin Films Driven by Spatial Light Modulation

Advanced Optical Materials, EarlyView.
A maskless, SLM‐driven approach enables the deterministic inscription of arbitrary topographical features in azopolymer films by mapping complex vectorial light fields onto local viscoplastic stress. This platform allows for the rapid generation and dynamic erasure of high‐aspect‐ratio micro‐spikes, offering a versatile tool for reconfigurable flat ...
Jonas Strobelt, Nikolai Liubimtsev, Marina Saphiannikova, Svetlana Santer   +3 more
wiley   +1 more source

High‐Throughput Screening and Interpretable Machine Learning for Rational Design of Bimetallic Catalysts for Methane Activation

Advanced Science, EarlyView.
ABSTRACT Methane's efficient catalytic removal is vital for sustainable development. Bimetallic catalysts, though promising for methane activation, pose a design challenge due to their complex compositional space. This work introduces an integrated framework that combines high‐throughput density functional theory (DFT) and interpretable machine ...
Mingzhang Pan, Tian Zhang, Jiawei Dong, Yubao Xie, Kaifeng Zhong, Wei Guan, Haiqiao Wei, Changcheng Fu, Yaqiong Su   +8 more
wiley   +1 more source

Analysis and Treatment of Floating Slab Track Bed Defects in Shanghai Rail Transit

Chengshi guidao jiaotong yanjiu
[Objective] Due to its excellent vibration and noise reduction performance, the floating slab track bed is widely used in urban rail transit. However, with the increasing service time, issues related to the deteriorating conditions of floating slab track
QU Feng
doaj   +1 more source

Changes of perceived unevenness caused by in-track vibration countermeasures in slab track

, 2017
This paper investigates the relation between unevenness at different locations in a railway track and the unevenness perceived by a train, for the particular case of a slab track.
Verachtert, R., M.F.M. Hussein, Verachtert, Ramses, ,, Hunt, HEM, Degrande, G., Hussein, MFM, Degrande, G, Degrande, Geert, H.E.M. Hunt, Hunt, H., Verachtert, R, G. Degrande, Hunt, H. E.M., R. Verachtert, Hussein, M., Hussein, M. F.M.   +16 more
core   +1 more source