These equations were then solved numerically for a period of a Martian year (669 sols) to obtain a time series for the position of the rotation pole on the surface of Mars. The results of the investigation indicate that mass variation in the atmosphere is as important as the formation and ...
7.18). A point's position is updated by the average velocity during the time period Δt. Under the constant-acceleration assumption, the average velocity during a time period is the average of its beginning velocity and ending velocity, as in Equation 7.19. By substituting Equation 7.18 into ...
Patients’ demographic and clinical data were collected preoperatively, postoperatively, and during the follow-up period of 12 months. Results Patient-reported functional outcomes were statistically significant for IKDC, Lysholm, and SF-12 physical scale (p < 0.05). Tegner score showed a ...
Rotational spectra and estimates of rotational amplitudes in the height range of the middle atmosphere allow the investigation of the change of rotation direction of the horizontal wind vector dependent on height and period of the wave perturbations. 展开 ...
Earth/Mars 288K/210K Earth/Europa 288K/102K Io/Enceladus 110K/75K Jupiter/Saturn/Neptune 165K /134K /72K The Rotational Warming Phenomenon is right, because it has been many times demonstrated and, also, it has been theoretically explained by the physics first principles. ...
During their lifetime, the Near-Earth Asteroids (NEAs) suffer numerous close encounters (CE) with Earth, Mars and Venus. It has been demonstrated that gravitational interactions during close planetary encounters can alter an asteroid's spin state, and hence, along with collisions, play a role ...
After stopping the mechanical excitation, we observed granular cooling of the ensemble for a period of three times the Haff time, where the kinetic energy dropped to about 5% of its initial value. The cooling rates of all observable degrees of freedom were comparable, and the ratio of ...
The satellite orbit is modeled as a precessing orbit because of the oblateness of Mars. We show that we are able to see the signature of a possible liquid core after less than 50 weeks of observation for a given precision of 0.1 mm/s for the Doppler tracking. We are also able to ...
In “Orientation at Epoch” page 1, column 2, http://astrogeology.usgs.gov/Projects/ISPRS/MEETINGS/Flagstaff2001/abstracts/ isprs_etm_OCT01_dux bury_A_mars_constants.pdf (2001) Giampieri G., Dougherty M.K., Smith E.J., Russell C.T. (2006). A regular period for Saturn’s magnetic ...
For many of the satellites, it is assumed that the rotation rate is equal to the mean orbital period (i.e. synchronous rotation, but in some cases such an assumption still needs to be validated). The angle W specifies the ephemeris position of the prime meridian. For planets or satellites...