Results 11 to 20 of about 42,815 (294)

Precession

open access: yes
Abstract The earth’s mantle is subject to both free precession (the Chandler wobble) and forced precession (equinox precession), with the latter driving precessional motion in the fluid core of the earth. Following a brief introduction to rigid-body precession, both the Chandler wobble and equinox precession of the earth are discussed ...
Jeffrey Barker
core   +3 more sources

Precession electron diffraction in the transmission electron Microscope: electron crystallography and orientational mapping [PDF]

open access: yes, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166Precession electron diffraction (PED) is a hollow cone non-stationary illumination technique for electron diffraction pattern collection under quasikinematical conditions (as in X-ray ...
Portillo i Serra, Joaquim
core   +6 more sources

Jet Precession in Gamma-Ray Bursts

open access: yesUniverse
Jet precession is thought to be a ubiquitous phenomenon in astronomical events of various scales, including gamma-ray bursts (GRBs). If GRB jets undergo precession, periodic features might be introduced into their light curves.
Bao-Quan Huang, Tong Liu
doaj   +2 more sources

Single-Trial Phase Precession in the Hippocampus [PDF]

open access: yes, 2009
During the crossing of the place field of a pyramidal cell in the rat hippocampus, the firing phase of the cell decreases with respect to the local theta rhythm.
Schmidt, Robert C.   +11 more
core   +1 more source

Long-period nutational-precessional motions of the instantaneous Earth rotation pole

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2020
The influence of the rotational regime on real long-period nutational-precessional motions of the instantaneous pole of the Earth’s rotation is considered. The solar magnetospheric (through changes in the angular velocity of rotation) mechanism of action
V.Yu. Belashov   +2 more
doaj   +1 more source

Prograde and retrograde precession of a fluid-filled cylinder

open access: yesNew Journal of Physics, 2021
We numerically study precession driven flows in a cylindrical container whose nutation angle varies between 60 and 90 degrees for prograde and retrograde precession.
Federico Pizzi   +3 more
doaj   +1 more source

INFLUENCE OF CONTROL CURRENT WAVEFORM ON ROTOR NUTATION OF THREE-DEGREES-OF-FREEDOM ELECTRIC MACHINE

open access: yesТехнічна електродинаміка, 2023
The design of the electric machine with three degrees of freedom of the rotor with an external magnetic core, containing permanent magnets, and an internal magnetic core is considered. The both magnetic cores are rotating.
І.С. Пєтухов   +3 more
doaj   +1 more source

The precessing top [PDF]

open access: yesThe Physics Teacher, 2000
When a symmetric top is set spinning with angular velocity ωc about its own axis, it traces out a circle about a vertical direction with angular velocity ωz.
openaire   +2 more sources

PRECESSIONS IN RELATIVITY [PDF]

open access: yesThe Tenth Marcel Grossmann Meeting, 2006
5 pages, 5 figures, Proceedings of X Marcel Grossmann Meeting on General Relativity, Rio de Janeiro, July 20-26 ...
openaire   +2 more sources

Study of jet precession, recirculation and vortex breakdown in turbulent swirling jets using LES. [PDF]

open access: yes, 2009
Large eddy simulations (LES) are used to investigate turbulent isothermal swirling flows with a strong emphasis on vortex breakdown, recirculation and instability behaviour.
Ranga Dinesh, K.K.J.   +3 more
core   +1 more source

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