Results 31 to 40 of about 31,742 (299)

Technologies for Minimizing Track Degradation and Additional Dynamic Effects at Permanent Way-Railway Bridge Stiffness Transitions

Engineering Proceedings
Railway tracks at bridge approaches experience significant vertical stiffness transitions, leading to adverse effects such as settlement and increased dynamic loads, accelerating track degradation.
Szabolcs Fischer, Zoltán Major, Bence Hermán, Bálint Molnár, András Pollák, Szabolcs Kocsis Szürke   +5 more
doaj   +1 more source

Dynamic response analysis of the wind–train–bridge coupling based on the stiffness change of the long-span track bridge

Journal of Low Frequency Noise, Vibration and Active Control, 2020
In order to analyze the influence of the stiffness change of the long-span track bridge on running safety of the train, a bridge and train analysis model, based on Chongqing Egongyan track bridge, is established to simulate and evaluate the spatial ...
Xiaogang Li, Peng Ding, Xiaohu Chen, Anshuang Liu, Yong Qi   +4 more
doaj   +1 more source

Assessment technologies of rail systems’ structural adequacy — A review from mechanical engineering perspectives

Science Progress, 2022
The structural adequacy challenges of railroad track structures have received considerable attention globally. Track defects and failures due to weak strength and buckling effect account for one-third of all railroad accidents. The current paper provides
Xia Hua, Wael Zatar, Alisha Gadedesi, Zhicheng Liao   +3 more
doaj   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Simulation of Delamination Evolution of Slab Ballastless Track under Vertical Impact

Shock and Vibration, 2021
During the running of a high-speed train, the wheel may bounce on the rail due to the track irregularity. The wheel bounce could generate a vertical impact, leading to the initiation and expansion of delamination between layers of the track structure. In
Yu Liu, Qianqi Xu, Xiaodan Sun, Guotao Yang, Guotang Zhao   +4 more
doaj   +1 more source

Shakedown for slab track substructures with stiffness variation [PDF]

Geotechnical Research, 2018
In this paper, shakedown analyses are carried out to predict the long-term response of slab track substructures under repeated moving train loads. The train loads are converted into a distributed moving load on the substructure surface by using a simplified track analysis.
Liu, S, Wang, J, Yu, H-S, Wanatowski, D
openaire   +2 more sources

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

Molecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni, Antonella Palmese, Stefano Scalera, Laura Cipriani, Davide Mascolo, Patrizia Vici, Teresa Arcuri, Lorena Filomeno, Eriseld Krasniqi, Giovanni Blandino, Giulia Bon, Marcello Maugeri‐Saccà   +11 more
wiley   +1 more source

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

Crack-Configuration Analysis of Metal Conductive Track Embedded in Stretchable Elastomer

Micromachines, 2018
This paper reports the analysis of the crack configuration of a stretched metal conductive track that is embedded in a stretchable elastomer. The factor determining the crack configurations is analyzed by modeling as well as experiments.
Tomoya Koshi, Eiji Iwase
doaj   +1 more source

Analysis of Track Bending Stiffness and Loading Distribution Effect in Rail Support by Application of Bending Reinforcement Methods

Urban Rail Transit, 2023
Railway track is a linearly inhomogeneous object that consists of geometrical and elastic discontinuities such as bridges, transition zones, rail joints and crossings.
Olga Nabochenko, Mykola Sysyn, Ulf Gerber, Norman Krumnow   +3 more
doaj   +1 more source