I thought of the great precessional
cycle that the pole of the earth describes.
It's been measured with radio experiments on previous landers (one precessional
cycle lasts about 166,000 years), but RISE's measurement will be more precise.
Today, STT is announcing a new breakthrough the company dubs Precessional
where [??] = [f.sub.1] sec 2[[omega].sub.0] and in particular, setting [f.sub.2] = [f.sub.1] = 0, we end up with a precessional
motion with [alpha] = const., while [omega](t) and [[omega].sub.0](t) can still be determined from (84).
STIR relies on T1 relaxation differences instead of precessional
frequency differences to cancel the signal from fat, thereby minimising susceptibility effects during fat-suppressed imaging.
When fat and water molecules occupy the same voxel, differences in precessional
frequency quench MR signal in that voxel during opposed-phase gradient-echo MR imaging.
Ji, "Array ISAR of precessional
cone target generated by intermittent sampling repeater jamming in fast and slow time," Journal of Electronics and Information Technology, vol.
This value is in the range of the precessional
cycle of the Earth's orbit.
Under the macrospin model and assuming a uniform ellipsoidal particle with demagnetizing tensor axes [N.sub.x], [N.sub.y], and [N.sub.z] ([N.sub.x] + [N.sub.y] + [N.sub.z] = 4[pi]), Kittel  derived the frequency for the uniform precessional
mode, also known as ferromagnetic resonance mode as [[omega].sub.0] = [gamma][([[H.sub.z] + ([N.sub.y] - [N.sub.z])[M.sub.Z]] x [[H.sub.z] + ([N.sub.x] - [N.sub.z]) [M.sub.z]]).sup.1/2].
Sun, "Study on precessional
motion simulation of ballistic missile midcourse," Applied Mechanics and Materials, vol.
For perfectly spherical source the lense thrilling precessional
rates for the node and the perigee were obtained.
Let [[omega].sub.pcn] be the precessional
angular speed, and let [v.sub.pcn] be the linear speed.