Ovchinnikov and Lehle reply

Ovchinnikov, Yu. N.; Lehle, W.

doi:10.1002/(sici)1521-3889(199909)8:6<526::aid-andp526>3.0.co;2-x

Cited by 5 publications

(6 citation statements)

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“…For a set of related problems, such as directed particle current [2,3], directed energy current [4], average magnetization [5], and nonlinear Hall effect [6], to name a few, a recently published symmetry approach was shown to systematically account for all relevant symmetries which have to be broken in order to explain the observed rectification effect. The purpose of this paper is to generalize this approach, and to apply it to different physically relevant situations like underdamped, overdamped or zero temperature cases.…”

Section: Introductionmentioning

confidence: 99%

Broken space-time symmetries and mechanisms of rectification of ac fields by nonlinear (non)adiabatic response

et al. 2002

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We consider low-dimensional dynamical systems exposed to a heat bath and to additional ac fields. The presence of these ac fields may lead to a breaking of certain spatial or temporal symmetries which in turn cause nonzero averages of relevant observables. Nonlinear (non)adiabatic response is employed to explain the effect. We consider a case of a particle in a periodic potential as an example and discuss the relevant symmetry breakings and the mechanisms of rectification of the current in such a system.

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Section: Introductionmentioning

confidence: 99%

Broken space-time symmetries and mechanisms of rectification of ac fields by nonlinear (non)adiabatic response

et al. 2002

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“…Another case, which attracted the attention of the scientific world again, happened in Russia (Volgograd) in 2010: an automobile bridge across the Volga River due to a significant wind load, the bridge entered into resonance with an oscillation amplitude in the vertical plane ( Fig.2). In this regard, it was possible to clearly see the vibrations of structures that reached 0.5 m [9][10][11]. The solution to the problem of the Volgograd bridge in particular, and generally applicable to all long-span flexible structures, is the installation of damping or anti-vibration installations -dampers or fairings.…”

Section: Figures and Tablesmentioning

confidence: 99%

“…It was suggested that the fairings that are widely used in aircraft manufacturing during modernization can also be applied in construction. Using one or another version of the fairing reduces the effect of wind by an order of magnitude [9,11,12].…”

Section: Figures and Tablesmentioning

confidence: 99%

The study of wind effects on the bridge constructions

2019

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Construction of bridge structures occupies one of the leading positions in the construction industry. However, the design of these objects is a complex multi-factor task. Particular attention in the development of bridge structures must be paid to wind loads, since their dynamic loads can cause a number of adverse aeroelastic reactions. Large-scale bridge structures, which are flexible structures, are more susceptible to horizontal influence of the wind. This article presents a description of the study of wind impact on a bridge being built in the city of Moscow, according to a technique that was developed by employees of the UNPL AAISK (NRU MGSU). In this case, a test of the span section of the model on a specialized stand was conducted. The example of this object shows a graph of the dependence of the amplitude of oscillations of the bridge span on the wind speed without the use of fairings and their installation. According to the results of the work conclusions.

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“…The model of a carbon nanotube in the form of a two-dimensional electron gas rolled in a cylinder finds wide application in theoretical investigations of physical properties of such nanostructures as quantum cylinders and quantum bracelets [1][2][3]. In this connection, much attention is given to studying the quantum effects induced by the external electrical-magnetic field not only in flat but also in curved low-dimensional layers of an electron gas.…”

Section: Introductionmentioning

confidence: 99%

“…the magnetic flux through the cross section of a cylinder of height L and radius R , 0 2 c e Φ = π is the magnetic-flux quantum,3 p is the electron-momentum projection of the axis Z (hereinafter, use is made of a system of units where 1 c = = ). Thus, in Eq.…”

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confidence: 99%