Results 21 to 30 of about 336,340 (89)

Vibration Characteristics Analysis of Convalescent-Wheelchair Robots Equipped with Dynamic Absorbers

open access: yesShock and Vibration, 2018
To provide a theoretical guidance for the vibration isolation design, the vibration responses characteristics for the convalescent-wheelchair robot with DA (dynamic absorber) undergoing the random road were revealed.
Song Wang   +3 more
doaj   +1 more source

Characterization and Simulation of Transient Vibrations Using Band Limited Temporal Moments

open access: yesShock and Vibration, 1994
A method is described to characterize shocks (transient time histories) in terms of the Fourier energy spectrum and the temporal moments of the shock passed through a contiguous set of band pass filters.
David O. Smallwood
doaj   +1 more source

Identification of Parton Pairs in a Dijet Event and Investigation of Its Effects on Dijet Resonance Search

open access: yesAdvances in High Energy Physics, 2014
Being able to distinguish parton pair type in a dijet event could significantly improve the search for new particles that are predicted by the theories beyond the Standard Model at the Large Hadron Collider.
Sertac Ozturk
doaj   +1 more source

Significance of Operating Environment in Condition Monitoring of Large Civil Structures

open access: yesShock and Vibration, 1999
Success of remote long-term condition monitoring of large civil structures and developing calibrated analytical models for damage detection, depend significantly on establishing accurate baseline signatures and their sensitivity. Most studies reported in
Sreenivas Alampalli
doaj   +1 more source

Synthesis, Tunable Multicolor Output, and High Pure Red Upconversion Emission of Lanthanide-Doped Lu2O3 Nanosheets

open access: yesAdvances in Condensed Matter Physics, 2013
Yb3+ and Ln3+ (Ln = Er, Ho) codoped Lu2O3 square nanocubic sheets were successfully synthesized via a facile hydrothermal method followed by a subsequent dehydration process.
Lingzhen Yin   +4 more
doaj   +1 more source

Charged Particles Moving around a Spherically Symmetric Dilatonic Black Hole

open access: yesAdvances in High Energy Physics
For the static spherically symmetric dilatonic black hole described by the Gibbons–Maeda–Garfinkle–Horowitz–Strominger geometry, we analyze the timelike trajectories for electrically charged test particles.
Vitalie Lungu   +3 more
doaj   +1 more source

Conservation of Total Vorticity for a 2D Stochastic Navier Stokes Equation

open access: yesAdvances in Mathematical Physics, 2011
We consider 𝑁 point vortices whose positions satisfy a stochastic ordinary differential equation on ℝ2𝑁 perturbed by spatially correlated Brownian noise.
Peter M. Kotelenez, Bradley T. Seadler
doaj   +1 more source

Comparison of Different Independent Component Analysis Algorithms for Output-Only Modal Analysis

open access: yesShock and Vibration, 2016
From the principle of independent component analysis (ICA) and the uncertainty of amplitude, order, and number of source signals, this paper expounds the root reasons for modal energy uncertainty, identified order uncertainty, and modal missing in output-
Jianying Wang   +3 more
doaj   +1 more source

Homotheties of a Class of Spherically Symmetric Space-Time Admitting G3 as Maximal Isometry Group

open access: yesAdvances in Mathematical Physics, 2018
The homotheties of spherically symmetric space-time admitting G4, G6, and G10 as maximal isometry groups are already known, whereas, for the space-time admitting G3 as isometry groups, the solution in the form of differential constraints on metric ...
Daud Ahmad, Kashif Habib
doaj   +1 more source

Vibration Isolation of Existing Buildings in Microvibration Traffic Environment

open access: yesShock and Vibration, 2019
In order to explore the impact of traffic environmental microvibration on buildings, this paper studies indoor vibration isolation, a method applicable to existing buildings.
Qian Xia   +3 more
doaj   +1 more source

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