Results 81 to 90 of about 1,750,116 (197)

Hydraulic interaction of two parallel pump-turbines in constant-speed oscillation: Measurement, simulation, and sensitivity analysis

open access: yes, 2021
Hydraulic interaction of two parallel pump-turbines in constant-speed oscillation: Measurement, simulation, and sensitivity ...
W Zeng (10287539)   +3 more
core  

OSCILLATION OF A HOMOGENEOUS DIFFERENT MODULUS BAR LYING ON TWO CONSTANT FOUNDATION

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2016
In the paper, a problem of natural vibration of a bar inhomogeneous in thickness and length made of different modulus material and lying on two Pasternak -type foundation is considered.
Natig S Rzayev
doaj  

Self-excited flow oscillation in an abruptly expanding circular duct as the noise source

open access: yesArchives of Acoustics, 2016
The behaviour of oscillations in subsonic flow in a duct with a sudden enlargement of cross-section has been investigated experimentally. The mechanism of one type of oscillation has been found and explained.
Andrzej P. SZUMOWSKI, Janusz PIECHNA
doaj  

A Constant Frequency Oscillator and its Oscillation Frequency

open access: yesProceedings of the Imperial Academy, 1927
NUKIYAMA, Heiichi, NAGAI, Kenzo
openaire   +2 more sources

[Woman Standing next to Column]

open access: yes
Recto: [imprinted] Constant & Moses. Verso: [imprinted] A. Constant & L.
A. Constant & L. Moses
core  

A light-fueled self-oscillator that senses force

open access: yesCommunications Materials
Light-responsive materials with intrinsic negative feedback enable self-oscillation in non-equilibrium states. Conventional systems rely on self-shadowing in bending modes but fail when shadowing is constrained.
Zixuan Deng   +3 more
doaj   +1 more source

The Madden Julian Oscillation: a literature review [PDF]

open access: yes, 2002
The literature survey reviews our present understanding of the Madden Julian Oscillation. This perturbation to the circulation of the tropical atmosphere involves anomalies in climate elements such as pressure, wind, outgoing long wave radiation, and ...
Donald, Alexis, Ribbe, Joachim
core  

Ultralight dilaton oscillations and the cosmological constant

open access: yesThe European Physical Journal C
Abstract In this work, we present a model predicting the emergence of a cosmological constant from ultralight dilaton oscillations. We begin by introducing the gravitational action in the context of two-dimensional scalar-tensor gravity, where the action of the gravitational field with an arbitrary dilaton ...
openaire   +1 more source

Discomfort of seated persons exposed to low frequency lateral and roll motion

open access: yes, 2012
Passengers of land transport are exposed to horizontal and rotational oscillations at frequencies less than 1 Hz which may cause vibration discomfort and motion sickness.
Beard, George
core   +1 more source

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