The maximally complicated arbitrary-dimensional “maximal” Galileon field equations simplify dramatically for symmetric configurations. Thus, spherical symmetry reduces the equations from the D− to the two-dimensional Monge-Ampere equation, axial symmetry to its cubic extension etc. We can then obtain explicit solutions, such as spherical or axial waves, and relate them to the (known) general, b...

We develop a wide-field simultaneous spatial and temporal focusing (SSTF) setup for two-photon excited fluorescence microscopy and its axial focusing point is scanned by second-order dispersion added by a femtosecond laser pulse shaper placed before the setup. We measure the axial resolution of second harmonic generation (SHG) at the edge of a BBO crystal.

By combining the field-weakening control principle of a new axial flux-switching permanent-magnet motor (AFFSSPM) with the space vector pulse width modulation (SVPWM) and maximum torque per voltage (MTPV) control principle, a novel field-weakening control strategy for AFFSSPM is proposed in this paper. In the first stage of the field-weakening, the difference between the reference voltage updat...

Abstract. It is shown that a vortex can be continuously created in a Bose-Einstein condensate with hyperfine spin F = 2 in a Ioffe-Pritchard trap by reversing the axial magnetic field adiabatically. It may be speculated that the condensate cannot be confined in the trap since the weak-field seeking state makes transitions to the neutral and the strong-field seeking states due to the degeneracy ...

In our previous paper [Phys. Plasmas 10, 4166 (2003)], we pointed out that the experimental results on the axial spontaneous magnetic field given by Najmudin et al. [Phys. Rev. Lett. 10, 215004 (2001)] can be explained by our kinetic model [Phys. Plasmas 8, 329 (2001)]. We also found that the azimuthal magnetic field Bθ given by our kinetic model is much weaker than the axial spontaneous magnet...

Abstract. It is shown that a vortex can be continuously created in a Bose-Einstein condensate with hyperfine spin F = 2 in a Ioffe-Pritchard trap by reversing the axial magnetic field adiabatically. It may be speculated that the condensate cannot be confined in the trap since the weak-field seeking state makes transitions to the neutral and the strong-field seeking states due to the degeneracy ...

The design and application of a patented active actuator design that combines the radial and axial actuator into one combination radial-axial actuator is presented. The theory of operation of the actuator is defined and magnetic finite element analysis modeling shown verifying operation. Its mechanical construction is then presented to show how this actuator configuration is successfully integr...

Electrostatic plasma accelerators which avoid the space charge limitations of conventional ion rockets are described. Additional advantages for these devices include moderate requirements on magnetic field strength, and on power level. In cylindrical and annular geometries, neutral plasmas can exhibit axial acceleration under the influence of externally applied axial electrostatic fields in the...

This paper concern with the investigation of peristaltic transport of a micropolar fluid in an asymmetric channel in the presence of induced magnetic field. The effect of slip velocity on the boundaries of the flow field is taken into account. The analysis is carried out by using long wave length and low Reynolds number assumptions. Mathematical expressions for axial velocity, stream function, ...