precession phase

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• Precession (astronomy) — In astronomy, precession refers to the movement of the rotational axis of a body, such as a planet, with respect to inertial space. In particular, it refers to the precession of the Earth s rotational axis, also called the precession of the… …   Wikipedia

• Steady-state free precession imaging — Steady state free precession (SSFP) imaging is a magnetic resonance imaging (MRI) technique which uses steady states of magnetizations. In general, SSFP MRI sequences are based on a (low flip angle) gradient echo MRI sequence with a short… …   Wikipedia

• Geometric phase — In mechanics (including classical mechanics as well as quantum mechanics), the Geometric phase, or the Pancharatnam Berry phase (named after S. Pancharatnam and Sir Michael Berry), also known as the Pancharatnam phase or Berry phase, is a phase… …   Wikipedia

• D. Lewis Mingori — Diamond Lewis (Tino) Mingori (born June 7, 1938)[1] is an American who was a longtime professor of Mechanical Aerospace Engineering at the University of California at Los Angeles (UCLA). He currently serves as a Professor Emeritus.[2] His… …   Wikipedia

• Imagerie par résonance magnétique — Pour les articles homonymes, voir IRM et MRI. L imagerie par résonance magnétique (IRM) est une technique d imagerie médicale permettant d obtenir des vues 2D ou 3D de l intérieur du corps de façon non invasive avec une résolution relativement… …   Wikipédia en Français

• North African climate cycles — have a unique history that can be traced back millions of years. The cyclic climate pattern of the Sahara is characterized by significant shifts in the strength of the North African Monsoon. When the North African Monsoon is at its strongest… …   Wikipedia

• climate change — Introduction  periodic modification of Earth s climate brought about as a result of changes in the atmosphere as well as interactions between the atmosphere and various other geologic, chemical, biological, and geographic factors within the Earth …   Universalium

• General relativity — For a generally accessible and less technical introduction to the topic, see Introduction to general relativity. General relativity Introduction Mathematical formulation Resources …   Wikipedia

• geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

• Place cell — Infobox neuron neuron name = Place cell image neuron = Hippocampal pyramidal cell.png caption neuron = A hippocampal pyramidal cell location = Hippocampus function = Spatial memory: fires when animal is in a particular location neurotransmitter …   Wikipedia

• Etoile a neutrons — Étoile à neutrons RX J1856.4 3754, une étoile à neutrons isolée proche du Système solaire, dont l émission de surface est vue par le télescope spatial Hubble. Une étoile à neutrons est le nom donné à un astre principalement composé de neutrons… …   Wikipédia en Français