Results 101 to 110 of about 11,419 (301)

Formation Mechanism of Rail Corrugation for Modern Tram Lines [PDF]

In order to explain the phenomenon of corrugation on measured line sections of the modern tram, a numerical model of modern tram-track coupling has been established by utilizing the multi-body dynamics method, and the formation mechanism of corrugation ...
Zhu, Jianyue, Wang, Zhiqiang, Lei, Zhenyu   +2 more
core   +1 more source

Maintenance Method for Rail Corrugation Considering Wheel–Rail Interaction Force

Applied Sciences
Rail corrugation causes various problems such as a decrease in ride comfort due to aggravation of train noise and vibration, and an increase in the amount of track component maintenance due to the amplification of the track impact.
Jung-Youl Choi, Cheon Man Jeong, Sun-Hee Kim   +2 more
doaj   +1 more source

Tunable active chirped-corrugation waveguide filters [PDF]

, 1989
A novel tunable semiconductor waveguide reflection filter is proposed and analyzed. The filter is based on spatially selective gain pumping of a chirped-corrugation waveguide.
Schrans, Thomas, Mittelstein, Michael, Yariv, Amnon   +2 more
core  

Rail corrugation growth on curves - measurements, modelling and mitigation

, 2015
The development of rail corrugation (so called rutting corrugation) on a 120 m radius curve on the metro of Stockholm Public Transport was studied by field measurements, laboratory measurements and numerical simulations.
Nielsen, Jens C. O., Nielsen, Jens, Torstensson, Peter, P. T. Torstensson, J. C. O. Nielsen, Torstensson, Peter,, Nielsen, Jens,   +6 more
core   +1 more source

1.3 mu m gain coupled DFB laser with InGaAlAs MQW grown on absorptive InGaAsP corrugation

, 2007
An InGaA1As multiquantum well (MQW) has been successfully overgrown on the absorptive InGaAsP corrugation for fabricating the 1.3 mu m gain coupled distributed feedback (DFB) lasers.
Zhao LJ, Liao ZY, Pan JQ, Feng, W, Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: wfeng@semi.ac.cn, Feng W, Wang W, Chen DB, Cheng YB, Zhu HL, Wang L   +9 more
core  

Acoustic vibration characteristics for combined diagnosis of rail corrugation: An application of MCiSSA and permutation heterogeneous recurrence plot

Results in Engineering
In this paper, we utilize acoustic vibration characteristics for the combined diagnosis of rail corrugation. The two-dimensional signal is first decomposed into several modes by Multivariate circulant singular spectrum analysis (MCiSSA) and the ...
Xuegeng Mao, Hang Zhang, Zilong Wei, Fei Yang, Jianli Cong, Jinzhao Liu, Zezhou Liu   +6 more
doaj   +1 more source

Rail Corrugation Growth on Curves [Elektronisk resurs]

, 2012
The development of periodic irregularities with distinct wavelengths (corrugation) on the low rail of small radius curves is studied through mathematical modelling, numerical simulations, field measurements and laboratory investigations.
Torstensson, Peter,
core  

Measuring the Corrugation Amplitude of Suspended and Supported Graphene

, 2020
Nanoscale corrugation is a fundamental property of graphene arising from its low-dimensional nature. It places a fundamental limit to the conductivity of graphene and influences its properties.
D A Kirilenko, G Van Tendeloo, A T Dideykin   +2 more
core  

Corrugation Reduction by Semi-Active Track

, 2000
The wear of wheels and rails is of major concern for every railway and vehicle maintenance authority, since reprofiling and replacing worn wheels and rails absorb a significant part of their maintenance budget.
Preumont, A., Valasek, M., Vaculin, O.
core  

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

The Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira, Victoria Brondani de Oliveira, Carlos Eduardo Seyfert, Luciano de Morais‐Pinto   +3 more
wiley   +1 more source