Results 21 to 30 of about 27,652 (282)

Corrugated multi-supersheets [PDF]

open access: yesJournal of High Energy Physics, 2013
We explore the multi-superthreads and supersheets solutions of six-dimensional N=1 supergravity coupled to a tensor multiplet. The solutions carry D1-D5-P charges, but no Kaluza-Klein monopole. We lay down the formalism to construct multiple supersheets with arbitrary and independent profiles.
openaire   +3 more sources

RAIL CORRUGATION EFFECT ON VIBROACOUSTIC PROPERTIES UNDER STOCK OPERATION

open access: yesAdvanced Engineering Research, 2013
According to the papers of the German and French specialists, the rail corrugation stimulates increasing the rail sound radiation intensity. Besides, the consideration of the rail corrugation actually explains the high-frequency noise spectrum.
Sergey Fedorovich Podust
doaj   +1 more source

Generation mechanism and remedy method of rail corrugation at a sharp curved metro track with Vanguard fasteners

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
In Chinese metro lines, Vanguard fastener system is widely used as vibration damping fastener. However, the rails mounted with this fastener system are deeply affected by rail corrugation.
BW Wu, GX Chen, JZ Lv, Q Zhu, X Kang
doaj   +1 more source

Dynamic characteristics and growth curve of rail corrugation at saturation stage

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Rail corrugation, which causes the vibration and the noise, is a phenomenon in which roughness patterns of approximately regular wavelengths are formed on the rail running surface by trains running.
Mitsuo ABOSHI, Hirofumi TANAKA
doaj   +1 more source

Influence of the meandering channel geometry on the thermo-hydraulic performances of an intensified heatexchanger/reactor [PDF]

open access: yes, 2013
In the global context of process intensification, heat exchanger/reactors are promising apparatuses to implement exothermic chemical syntheses. However, unlike heat exchange processes, the implementation of chemical syntheses requires to control the ...
Anxionnaz-Minvielle, Zoé   +3 more
core   +3 more sources

The Identification and Assessment of Rail Corrugation Based on Computer Vision

open access: yesApplied Sciences, 2019
The identification and assessment of rail corrugation are two of the essential tasks of daily railway inspection to guarantee the safety of train operation and promote the development of an efficient maintenance strategy.
Dehua Wei   +4 more
doaj   +1 more source

Design and fabrication of a non-destructive system to detect rail corrugation [PDF]

open access: yesInternational Journal of Railway Research, 2022
The present paper proposes a technique that is capable of inspecting the rail head for corrugation before and after the grinding process with high accuracy and repeatability.
Iman Ahadi Akhlaghi   +3 more
doaj  

Acoustical behavior of camellia sinensis/ananas comosus fiber based uni-directional corrugated panel for sound damping application

open access: yesMaterials Research Express, 2022
To achieve a durable, rigid, and lightweight construction material, a new class of Camellia sinensis / Ananas comosus fiber-enhanced corrugated sandwich panel was designed and produced.
N Karthi   +3 more
doaj   +1 more source

Experimentally Based Numerical Simulation of the Influence of the Agricultural Subsurface Drainage Pipe Geometric Structure on Drainage Flow

open access: yesAgriculture, 2022
The geometric structure of corrugated plastic pipes affects performance in agricultural subsurface drainage systems. To explore the influence of pipe geometry on flow field characteristics and the characterization of water movements, we developed a three-
Zhe Wu   +4 more
doaj   +1 more source

Formation Mechanism of Metro Rail Corrugation Based on Wheel–Rail Stick–Slip Behaviors

open access: yesApplied Sciences, 2021
Field investigation shows that most corrugations occur on the inner rail surface of curved tracks with a radius of less than 700 m. In order to explore the formation mechanism of metro corrugation, the relationship between wheel–rail stick–slip ...
Zhiqiang Wang, Zhenyu Lei
doaj   +1 more source

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