In this paper we present the design of two actuators for the generation of highly nonlinear solitary waves (HNSWs), which are mechanical waves that can form and travel in highly nonlinear systems. These waves are characterized by a constant spatial wavelength and by a tunable propagation speed, dependent on the wave amplitude. To date, the simplest and widely adopted method to generate HNSWs is...

PURPOSE Hyperpolarization of carbon-13 ((13) C) nuclei by dissolution dynamic nuclear polarization increases signal-to-noise ratio (SNR) by >10,000-fold for metabolic imaging, but care must be taken when transferring hyperpolarized (HP) samples from polarizer to MR scanner. Some (13) C substrates relax rapidly in low ambient magnetic fields. A handheld electromagnet carrier was designed and con...

The problem of precisely controllimg (within sensor resolution) the height qf’a steel ball ahoae the ground hi) levitating it against the force of yrat:ity using an electromagnet is considered. The state variables used to model the system are the hall’s position below the magnet, the ball’s speed and the current in the electromagnet. Two state-space controllers are compared in terms of their pe...

Electromagnetic levitated and guided system is commonly used in the field of people transport, tool machines frictionless bearing and conveyor system. In the case of low speed people transport vehicles, the electromagnetic levitation offers the advantage of a very salient motion and of a reduced maintenance of the rail.In this work FEM based analysis and design of different structure of rail (g...

We present a laboratory electromagnet capable of generating magnetic fields up to ±0.48 T, specifically designed as perpendicular flux source for thin film samples in an ambient environment. The magnet features 250 mm diameter clear access bore above the sample plane, thus offering compatibility with wide variety experimental apparatus. Despite its generous size, thermally dissipates less than ...