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Showing 1 to 20 of 129 for “"Precession"”.
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Minimizing Precession Torques in the Electrically Supported Gyro
Made available in DSpace on 2014-12-04T21:03:37Z (GMT). No. of bitstreams: 1 6402853.pdf: 5225880 bytes, checksum: a9987b4df6299a0b140c4569a8a5951e (MD5) Previous issue date: 1963
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Structure Solution Using Precession Electron Diffraction and Diffraction Tomography
… problem of structure solution. The technique of precession electron diffraction, in particular, is discussed as a method to improve the applicability of methods borrowed from X-ray crystallography to intensities measured from electron diffraction. Simulations are presented which demonstrate that …
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Methods and Applications for Nanometrology using Scanning Precession Electron Diffraction
… conical rocking of the beam (commonly called precession). In this thesis, routes to improvement for two key areas within the field - orientation mapping and strain mapping - are demonstrated, allowing for significant increases in both throughput and accuracy. Comparisons are made between …
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Excitation of gyroscopic precession in overhung rotors at critical speeds
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1953.
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Precession damping and axial velocity control of a lightweight reentry vehicle
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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The feasibility of the use of Overhauser effect in a nuclear free precession magnetometer.
Nuclear Free Precession Magnetometers have been in use since the first successful one was built in 1954. These magnetometers, used to measure the magnitude of the Earth's magnetic field, operate on the relationship that exists between the magnitude of the environmental magnetic field and the …
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Measuring the anomalous precession frequency of the muon in run 2 of the Fermilab muon g-2 experiment
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01
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Exploring the super-orbital periodic behaviour of X-Ray binaries
… warping/tilting and tidally-induced precession of the accretion disc, jet precession and the modulation of the mass-transfer rate due to an accretion disc instability or the effects of a third body.
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Neutron electric dipole moment and dressed spin
… of two particles. Consequently, the neutron precession frequency can be derived by the scintillation light amplitude. Furthermore, the 3He precession frequency can be measured by the superconducting quantum interference device (SQUID). A dressed-spin technique will also be applied to measure …
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On the origins of the ice ages : insolation forcing, age models, and nonlinear climate change
… to the insolation variations resulting from the precession of the equinoxes. There is no mean annual insolation variability associated with precession - precession only modulates the seasonal cycle. Nonlinear rectification of the seasonal cycle generates precession-period variability, and such …
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Representations for Understanding the Stern-Gerlach Effect
… This change allows us to easily identify precession as a critical concept. It also provides us with a means by which to study precession and analyze it critically. By applying and comparing several mathematical techniques to this problem we gain insight into the applicability of precession …
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Modeling the impact of atmospheric moisture transport on global ice volume
… in the Northern Hemisphere respond to both precession and obliquity frequencies when the model is forced with seasonal insolation. Obliquity variations are introduced by the impact of earth's tilt on the meridional temperature gradient and the poleward flux of moisture, whereas precession …
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Linking millennial scale variability to orbital frequencies using a high resolution foraminiferal climate record spanning the Pleistocene
… determined that there is a shift in dominant precessional periodicities between 0-338 Ka (23 kyr) and 338-900 Ka (23 and 19 kyr). In order to determine whether changes in precession induces changes at the millennial scale, statistical analysis was performed on the spliced record using spectral …
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Chip-scale atomic magnetometer based on free-induction-decay
… This allows us to monitor the free Larmor precession of the spin coherent Cs atoms by separating the pump and probe phases in the time domain. A single light pulse can sufficiently polarise the atomic sample;however, synchronous modulation of the light field actively drives the precession …
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I. Exact Crystallographic Orientation Studies With Weissenberg and Precession Goniometers. Ii. Applications of Goniometric Analyses to the Crystal Structure Determinations of Hydrazinosulfuric Acid, Barium Hydrazinosulfate Monohydrate, Diphenyl Phthalate, Dehydroquinolizidine Perchlorate and 8-Hydroxyquinoline
Made available in DSpace on 2014-12-05T19:36:10Z (GMT). No. of bitstreams: 1 0011546.pdf: 7682358 bytes, checksum: e7ab91ce23e3aff4f07c3e51f8ceeff8 (MD5) Previous issue date: 1955
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Equilibria and oscillations of magnetised neutron stars
… have dynamics analogous to rigid-body<br/>free precession.<br/><br/>In axisymmetry, the equations of magnetohydrodynamics reduce to a purely<br/>toroidal-field case and a mixed-field case (with a purely poloidal-field limit). We<br/>solve these equations using a nonlinear code which finds …
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Studies into the rotational history of the minor planets
… out to investigate the observability of free-precession of asteroids in terms of the maximum light curve amplitude due to free-precession. This shows that only large displacements of the angular velocity vector from the angular momentum vector would produce an amplitude sufficiently great to …
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Optical control and probe of ferromagnetic and ferroic orders in films, heterostructures, and perovskite-based material systems
… a low-power optically excited magnetization precession angle above 90 degrees, which is required for magnetic switching. Co/Pd thin film multilayers were investigated for their potentially large perpendicular magnetic anisotropy (PMA) with three differing regimes of magnetic anisotropy: …
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