2010 Japan Prizes Awarded to Prof. Shun
... Coming into the 80's, universities around the world formed research centers for the study of the perpendicular magnetic recording method. Japanese electronics manufacturers also embarked on the research and development thereof, but implementation seemed still far into the future. Unlike the horizon ...
... Coming into the 80's, universities around the world formed research centers for the study of the perpendicular magnetic recording method. Japanese electronics manufacturers also embarked on the research and development thereof, but implementation seemed still far into the future. Unlike the horizon ...
MRI glossary
... MAGNETIC RESONANCE - the absorption or emission of energy by atomic nuclei in an external magnetic field after the application of RF excitation pulses using frequencies which satisfy the conditions of the Larmor equation. MAGNETIC RESONANCE ANGIOGRAPHY (MRA) - MR image visualization of selected vasc ...
... MAGNETIC RESONANCE - the absorption or emission of energy by atomic nuclei in an external magnetic field after the application of RF excitation pulses using frequencies which satisfy the conditions of the Larmor equation. MAGNETIC RESONANCE ANGIOGRAPHY (MRA) - MR image visualization of selected vasc ...
Virtual geomagnetic poles
... 90% of the modern geomagnetic field is represented by a simple dipole at the center of the earth. The remaining 10%, the “non-dipole” components, have a more complicated spatial structure. Geomagneticians assume that in the past the earth’s field was also dominated by the dipole component. We can de ...
... 90% of the modern geomagnetic field is represented by a simple dipole at the center of the earth. The remaining 10%, the “non-dipole” components, have a more complicated spatial structure. Geomagneticians assume that in the past the earth’s field was also dominated by the dipole component. We can de ...
Fluid Instabilities
... • Solution: MHD turbulence is unisotropic (Goldreich & Sridhar 1995)spectrum is more strongly developed perpendicular to the local Bfield where the Alfvén effect is not operative. This explains why Kolmogorov-like dynamics is effective. • Self-organization processes in MHD turbulence that have no ...
... • Solution: MHD turbulence is unisotropic (Goldreich & Sridhar 1995)spectrum is more strongly developed perpendicular to the local Bfield where the Alfvén effect is not operative. This explains why Kolmogorov-like dynamics is effective. • Self-organization processes in MHD turbulence that have no ...
4.2 Fluid Friction Notes
... When an object moves through a fluid, the drag force on the object increases as the speed increases until at some point the upward drag equals the weight. At this point, the forces acting on the falling object are balanced and the object no longer accelerates; the speed becomes ...
... When an object moves through a fluid, the drag force on the object increases as the speed increases until at some point the upward drag equals the weight. At this point, the forces acting on the falling object are balanced and the object no longer accelerates; the speed becomes ...
Levitating Magnets - GK-12 Program at the University of Houston
... a. describe Bitter magnet i. named for Francis Bitter (American physicist) who devised using circular plates interleaved with insulating spacer to form a helical structure ii. the Bitter plates are better able to withstand the large Lorentz forces which tend to create an outward pressure on the mate ...
... a. describe Bitter magnet i. named for Francis Bitter (American physicist) who devised using circular plates interleaved with insulating spacer to form a helical structure ii. the Bitter plates are better able to withstand the large Lorentz forces which tend to create an outward pressure on the mate ...
Lab 08: Electromagnetic Induction
... the electrostatic force...). We also know that the magnetic force is an action-atdistance force (which is why we can slide one or two sheets of paper between the magnet and the fridge, but not an entire notebook). We may be less aware, however, of the relationship between electricity and magnetism. ...
... the electrostatic force...). We also know that the magnetic force is an action-atdistance force (which is why we can slide one or two sheets of paper between the magnet and the fridge, but not an entire notebook). We may be less aware, however, of the relationship between electricity and magnetism. ...
A magnetic Rotor to convert vacuum
... same strength of the external field, the forces and the torque would be about 4 or 5 orders of magnitude smaller compared to a superconducting rotor, but the field strength could be enhanced perhaps to 1 Tesla of even more rather easily, so that finally the torque might be enhanced to a value even a ...
... same strength of the external field, the forces and the torque would be about 4 or 5 orders of magnitude smaller compared to a superconducting rotor, but the field strength could be enhanced perhaps to 1 Tesla of even more rather easily, so that finally the torque might be enhanced to a value even a ...
CGS
... It is confirmed that the Chinese companies have ability to product the small satellites and suitable rockets for the CGS mission. ...
... It is confirmed that the Chinese companies have ability to product the small satellites and suitable rockets for the CGS mission. ...
QCD in strong magnetic field
... bounded into the Cooper pairs by the (attractive) phonon exchange. ...
... bounded into the Cooper pairs by the (attractive) phonon exchange. ...
Electromagnetism Worksheets
... Electromagnets An electromagnet consists of a solenoid (soil of wire) wrapped around a bar of iron or other ferromagnetic material. When current flows through the solenoid, it gives it a magnetic field like a bar magnet. The magnetic field of the solenoid magnetizes the ferromagnetic bar by aligning ...
... Electromagnets An electromagnet consists of a solenoid (soil of wire) wrapped around a bar of iron or other ferromagnetic material. When current flows through the solenoid, it gives it a magnetic field like a bar magnet. The magnetic field of the solenoid magnetizes the ferromagnetic bar by aligning ...
HEA_Pulsars
... • Problem: ALL radiation mechanisms at different frequencies (coherent or not) must have same orientation along magnetic field. ...
... • Problem: ALL radiation mechanisms at different frequencies (coherent or not) must have same orientation along magnetic field. ...
Lubos Brieda, Shaunak Pai, and Michael Keidar
... ions and neutrals, but electron density is obtained from the momentum equation (3) with axial electron velocity computed by Ohm’s Law (4). We have modified the code to support axial variation in mobility computed in Step 1. Steps 1 and 2 are coupled, since transport depends on neutral densities as w ...
... ions and neutrals, but electron density is obtained from the momentum equation (3) with axial electron velocity computed by Ohm’s Law (4). We have modified the code to support axial variation in mobility computed in Step 1. Steps 1 and 2 are coupled, since transport depends on neutral densities as w ...
Physics 196 Electricity and Magnetism
... II. The Electric Field and Electric Potential A. Analysis of electric lines of force B. Calculation of electric fields 1. Due to discrete distributions of charge 2. Due to continuous distributions of charge C. Examination and calculation of electric field flux D. Motion of charged particles in a uni ...
... II. The Electric Field and Electric Potential A. Analysis of electric lines of force B. Calculation of electric fields 1. Due to discrete distributions of charge 2. Due to continuous distributions of charge C. Examination and calculation of electric field flux D. Motion of charged particles in a uni ...
Chapter 28 Sources of Magnetic Field
... C of the circular portion. Find the magnetic field at point C. ...
... C of the circular portion. Find the magnetic field at point C. ...
5.2.7 Specialities
... complex dielectric function and thus also the complex index of refraction. All we need to do to cover all the effects of electric and magnetic fields on optics is to include the forces on the electron they add in addition to the force produced by the electric field of the light wave. The equation ab ...
... complex dielectric function and thus also the complex index of refraction. All we need to do to cover all the effects of electric and magnetic fields on optics is to include the forces on the electron they add in addition to the force produced by the electric field of the light wave. The equation ab ...
Ferrofluid
A ferrofluid (portmanteau of ferromagnetic and fluid) is a liquid that becomes strongly magnetized in the presence of a magnetic field.Ferrofluid was invented in 1963 by NASA's Steve Papell as a liquid rocket fuel that could be drawn toward a pump inlet in a weightless environment by applying a magnetic field.Ferrofluids are colloidal liquids made of nanoscale ferromagnetic, or ferrimagnetic, particles suspended in a carrier fluid (usually an organic solvent or water). Each tiny particle is thoroughly coated with a surfactant to inhibit clumping. Large ferromagnetic particles can be ripped out of the homogeneous colloidal mixture, forming a separate clump of magnetic dust when exposed to strong magnetic fields. The magnetic attraction of nanoparticles is weak enough that the surfactant's Van der Waals force is sufficient to prevent magnetic clumping or agglomeration. Ferrofluids usually do not retain magnetization in the absence of an externally applied field and thus are often classified as ""superparamagnets"" rather than ferromagnets.The difference between ferrofluids and magnetorheological fluids (MR fluids) is the size of the particles. The particles in a ferrofluid primarily consist of nanoparticles which are suspended by Brownian motion and generally will not settle under normal conditions. MR fluid particles primarily consist of micrometre-scale particles which are too heavy for Brownian motion to keep them suspended, and thus will settle over time because of the inherent density difference between the particle and its carrier fluid. These two fluids have very different applications as a result.