The fact that both the D6-brane and the orientifold 6-plane have smooth, horizon-free descriptions in M-theory makes them especially useful in understanding certain aspects of brane physics. We briefly review how this connection has been used to understand a number of effects, several of which are associated with the Hanany-Witten transition. One particular outcome is a ”confinement mod 2” effe...

number of iterationsrequired to meet the convergencecriterion. the converged solutions from the previous step. This significantly reduces the interfacial boundaries, the initial estimates for the interfacial flux is given from scheme. Outside of the first time step where zero initial flux is assumed on all between subdomains are satisfied using a Schwarz Neumann-Neumam iteration method which is...

The use of pupil-plane filters in microscopes has been proposed as a method of producing superresolution. Here it is shown that pupil-plane filters cannot increase the support of the transfer function for a large class of optical systems, implying that resolution cannot be improved solely by adding pupil-plane filters to an instrument. However, pupil filters can improve signal-to-noise performa...

A theoretical study of vesicles of topological genus zero is presented. The bilayer membranes forming the vesicles have various degrees of intrinsic (tangent-plane) orientational order, ranging from smectic to hexatic, frustrated by curvature and topology. The field-theoretical model for these 'n-atic' surfaces has been studied before in the low temperature (mean-field) limit. Work presented he...

This paper presents a simplified hybrid pulsewidth modulation (HPWM) algorithm to reduce the steady state ripple in current. In the conventional space vector PWM (CSVPWM) algorithm, the zero voltage applying time is distributed equally in every sampling interval. Also, this paper deals with two discontinuous PWM (DPWM) algorithms, which use only one zero state in each sampling interval. The pro...

This letter describes a zero-speed start-up method of a speed sensorless stator-flux-oriented direct vector-controlled induction motor drive with the help of a machine current model that does not use any speed signal. The machine starts smoothly with vector control at finite developed torque and then transitions to the standard direct vector-control mode with the voltage model signals as the sp...

Due to the shadowing effect, the oblique angle deposition technique can produce nanorods tilted toward the incident deposition flux. Periodic posts serving as seeds on a substrate allow the fabrication of nanorod arrays with controllable separations. However, in a conventional oblique angle deposition with no substrate rotation, nanorods grow faster along their widths in the direction perpendic...

A method is proposed to realize a luminous flux scale (lumens) using an integrating sphere with a known amount of flux introduced from an external source. The integrating sphere features an opening for a detector, a test lamp in its center, a baffle between the test lamp and the detector. A second opening is used to introduce flux from an external source, and is appropriately baffled from the t...