Evolution of Neutron Star Magnetic Fields
... A neutron star is born hot, and cools with time (unless accretion occurs on the surface). The conductivity of the outer crust therefore increases with time. Cooling rates of neutron stars have been computed under various assumptions, a useful compendium is found in Page (1998). Using a typical “stan ...
... A neutron star is born hot, and cools with time (unless accretion occurs on the surface). The conductivity of the outer crust therefore increases with time. Cooling rates of neutron stars have been computed under various assumptions, a useful compendium is found in Page (1998). Using a typical “stan ...
NMR (Nuclear Magnetic Resonance) and its applications
... electrons to that externally applied magnetic field is such that their motions produce a small magnetic field at the nucleus which usually acts in opposition to the externally applied field. This change in the effective field on the nuclear spin causes the NMR signal frequency to shift. The magnitud ...
... electrons to that externally applied magnetic field is such that their motions produce a small magnetic field at the nucleus which usually acts in opposition to the externally applied field. This change in the effective field on the nuclear spin causes the NMR signal frequency to shift. The magnitud ...
Solution
... 3. A solenoid 2.50 cm in diameter and 30.0 cm long has 300 turns and carries 12.0 A. (i) Calculate the flux through the surface of a disk of radius 5.00 cm that is positioned perpendicular to and centered on the axis of the solenoid, as shown in Fig. 3 (a). (ii) Figure 3 (b) shows an enlarged end vi ...
... 3. A solenoid 2.50 cm in diameter and 30.0 cm long has 300 turns and carries 12.0 A. (i) Calculate the flux through the surface of a disk of radius 5.00 cm that is positioned perpendicular to and centered on the axis of the solenoid, as shown in Fig. 3 (a). (ii) Figure 3 (b) shows an enlarged end vi ...
phys1444-lec23
... (c) Determine the magnetic field induced between the plates. Assume E is uniform between the plates at any instant and is zero at all points beyond the edges of the plates. The magnetic field lines generated by changing electric field is perpendicular to E and is circular due to symmetry d E Whose ...
... (c) Determine the magnetic field induced between the plates. Assume E is uniform between the plates at any instant and is zero at all points beyond the edges of the plates. The magnetic field lines generated by changing electric field is perpendicular to E and is circular due to symmetry d E Whose ...
10. Maxwell.
... • Non-zero curl indicates a "rotation" in the vector field ω(x, y, z). • Paddle wheel test: Paddle wheel spins if and only if field has nonzero change in transverse direction. ...
... • Non-zero curl indicates a "rotation" in the vector field ω(x, y, z). • Paddle wheel test: Paddle wheel spins if and only if field has nonzero change in transverse direction. ...
ppt
... • CR acceleration in SNRs is able to provide the observed Galactic CR spectrum up to the energy ε ≈ 1017 eV • Two possibility for Galactic CR spectrum formation: - Dip scenario ( CRs from Galactic SNRs at ε < 1017 eV + Extragalactic CRs at ε > 1018 eV ) - Ankle scenario ( CRs from Galactic SNRs at ε ...
... • CR acceleration in SNRs is able to provide the observed Galactic CR spectrum up to the energy ε ≈ 1017 eV • Two possibility for Galactic CR spectrum formation: - Dip scenario ( CRs from Galactic SNRs at ε < 1017 eV + Extragalactic CRs at ε > 1018 eV ) - Ankle scenario ( CRs from Galactic SNRs at ε ...
Braking Index of Isolated Pulsars
... braking index of a 2 solar mass pulsar. It is clear that even at a frequency of 200Hz the deformation from spherical is less than 1% and the braking index only changes by roughly 1.5% ...
... braking index of a 2 solar mass pulsar. It is clear that even at a frequency of 200Hz the deformation from spherical is less than 1% and the braking index only changes by roughly 1.5% ...
Talk - IIT Kanpur
... The physical mechanism responsible for this is not known so far. We are considering the possibility that it may be explained due to conversion of photons into pseudoscalars due to propagation through local supercluster magnetic field. ...
... The physical mechanism responsible for this is not known so far. We are considering the possibility that it may be explained due to conversion of photons into pseudoscalars due to propagation through local supercluster magnetic field. ...
Effect of Magnetic Field on Weld Quality and Weld
... is often small in size and can be easily shifted from one place to the other [2]. SMAW input process parameters like welding current, welding speed; open circuit voltage and external magnetic field are highly influencing the quality of weld joints. The applications of magnetic field in welding proce ...
... is often small in size and can be easily shifted from one place to the other [2]. SMAW input process parameters like welding current, welding speed; open circuit voltage and external magnetic field are highly influencing the quality of weld joints. The applications of magnetic field in welding proce ...
zaneposter
... 2008 for a review).They are all slow X-ray pulsars with spin periods clustered in a narrow range (P ~ 2-12 s), relatively large period derivatives (dP/dt ~ 10-13 -10-10 s/s), spin-down ages of 103 -104 yr, and magnetic fields, as inferred from the classical magnetic dipole spin-down formula, of 1014 ...
... 2008 for a review).They are all slow X-ray pulsars with spin periods clustered in a narrow range (P ~ 2-12 s), relatively large period derivatives (dP/dt ~ 10-13 -10-10 s/s), spin-down ages of 103 -104 yr, and magnetic fields, as inferred from the classical magnetic dipole spin-down formula, of 1014 ...
3D Visualization and Visual Data Mining
... are therefore used as virtual reality systems capable of producing stereo video output. PHANToM［6］and a Wanda［7］have also been used as 3D pointers to positioning in 3D space. CAVE, in particular, offers an augmented sense of immersion thanks to its four- (or five-sided) configuration as shown in Fig ...
... are therefore used as virtual reality systems capable of producing stereo video output. PHANToM［6］and a Wanda［7］have also been used as 3D pointers to positioning in 3D space. CAVE, in particular, offers an augmented sense of immersion thanks to its four- (or five-sided) configuration as shown in Fig ...
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.