Results 11 to 20 of about 16,343 (165)

Reflected Traveling Wave Based Single-Ended Fault Location in Distribution Networks

open access: yesEnergies, 2020
Traveling wave (TW)-based fault-location methods have been used to determine single-phase-to-ground fault distance in power-distribution networks. The previous approaches detected the arrival time of the initial traveling wave via single ended or multi ...
Yangang Shi, Tao Zheng, Chang Yang
doaj   +1 more source

Angular Displacement Control for Timoshenko Beam by Optimized Traveling Wave Method

open access: yesAerospace, 2022
The vibration of flexible structures in spacecraft, such as large space deployable reflectors, solar panels and large antenna structure, has a great impact on the normal operation of spacecraft. Accurate vibration control is necessary, and the control of
Huawei Ji   +8 more
doaj   +1 more source

Allee effect promotes diversity in traveling waves of colonization [PDF]

open access: yesProceedings of the National Academy of Sciences, 2012
Most mathematical studies on expanding populations have focused on the rate of range expansion of a population. However, the genetic consequences of population expansion remain an understudied body of theory. Describing an expanding population as a traveling wave solution derived from a classical reaction-diffusion model, we analyze the spatio-temporal
Roques, Lionel   +3 more
openaire   +5 more sources

Research on Active Flow Control Method of NACA0012 Airfoil with Traveling Wave Structure [PDF]

open access: yesJournal of Applied Fluid Mechanics
Traveling wave is an innovative active flow control technique that can remarkably mitigate flow separation. This paper employs numerical simulation to examine how traveling wave structures affect the NACA0012 airfoil.
Q. Dai   +4 more
doaj   +1 more source

Dynamic Response Analysis of Buried Drainage Pipes for Polymer Grouting Trenchless Rehabilitation under the Traveling Wave Effect

open access: yesAdvances in Civil Engineering, 2022
The polymer grouting nonexcavation repair technology has been widely used in the repair of underground pipeline leaks, but the seismic response to the polymer repair pipeline is currently using a consistent excitation of seismic input without considering
Fengyang Miao   +4 more
doaj   +1 more source

Traveling Wave Resonance and Simplified Analysis Method for Long-Span Symmetrical Cable-Stayed Bridges under Seismic Traveling Wave Excitation

open access: yesShock and Vibration, 2014
The seismic responses of a long-span cable-stayed bridge under uniform excitation and traveling wave excitation in the longitudinal direction are, respectively, computed.
Zhong-ye Tian, Meng-lin Lou
doaj   +1 more source

Seismic Analysis of Hybrid System Bridge of Multi-Span Continuous Girder and Arches [PDF]

open access: yesE3S Web of Conferences, 2020
The Chengdong Hanjiang Bridge in Ankang City is a multi-span continuous beam-arch combination system bridge of (75+2×125+160+2×125+75) m, and its site is located in the earthquake zone.
Mei Kuihua, Fu Wangwang, Su Jufeng
doaj   +1 more source

Effective Temperature of Ions in Traveling Wave Ion Mobility Spectrometry [PDF]

open access: yesAnalytical Chemistry, 2011
Traveling wave ion mobility spectrometers (TW IMS) operate at significantly higher fields than drift tube ion mobility spectrometers. Here we measured the fragmentation of the fragile p-methoxybenzylpyridinium ion inside the TW ion mobility cell of the first-generation SYNAPT HDMS spectrometer.
Morsa, Denis   +2 more
openaire   +3 more sources

Actuating mechanism and design of a cylindrical traveling wave ultrasonic motor using cantilever type composite transducer. [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: Ultrasonic motors (USM) are based on the concept of driving the rotor by a mechanical vibration excited on the stator via piezoelectric effect.
Yingxiang Liu   +3 more
doaj   +1 more source

Wave propagation in a infectious disease model with non-local diffusion

open access: yesAdvances in Difference Equations, 2019
In this paper, we propose a nonlocal diffusion infectious disease model with nonlinear incidences and distributed delay to model the transmission of the epidemic.
Yueling Cheng, Dianchen Lu
doaj   +1 more source

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