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Hace 3 días · The results indicated that dust activity in southern TP is primarily regulated by the near-surface wind intensity and follows the variation pattern of precession. When precession is large, the Northern Hemisphere's summer solstice is located at the aphelion, resulting in a lower Northern Hemisphere summer insolation (NHSI).
Hace 2 días · To solve the precession variations, the time series must have a minimum resolution of 10.5 ka (two times Nyquist frequency). The resolution of the GH1 SST time series is adequate for identifying precession variations ( Fig. 4 ) (the noticeable filtered 21 ka variations of GH1 SST) and Fig. 2 (supp.) (the power spectra of GH1 SST and cross-spectra against ETP and LR04) ( Lisiecki and Raymo, 2005 ).
Hace 2 días · Newton used his mathematical description of gravity to derive Kepler's laws of planetary motion, account for tides, the trajectories of comets, the precession of the equinoxes and other phenomena, eradicating doubt about the Solar System's heliocentricity.
Hace 5 días · As depicted in Fig. 1A, a semiconductor solid-state device designed to trap polaritons is subject to nonresonant continuous-wave (cw) optical excitation, with a spot of diameter between 3 and 10 μm placed on top of the trap.Electron-hole particles are optically injected at low temperatures (5 K) and high energies and left to relax and find their stationary dynamics.
Hace 1 día · We investigate collective spin excitations of graphene electrons with short-ranged interactions and subject to the external Zeeman magnetic field. We find that in addition to the familiar Silin spin wave, a collective spin-flip excitation that reduces to the uniform precession when the wave's momentum approaches zero, the magnetized graphene supports another collective mode visible in the ...
Hace 2 días · The observed perihelion precession of Mercury is 5,600 arcseconds (1.5556°) per century relative to Earth, or 574.10 ± 0.65 arcseconds per century relative to the inertial ICRF.
Hace 1 día · The upper limit on the precession frequency will most likely be the zero-field ferromagnetic resonance frequency and it is very difficult to push that upper limit into the X-band 30.
